CN215444471U

CN215444471U - Fan and air supply system

Info

Publication number: CN215444471U
Application number: CN202121204649.7U
Authority: CN
Inventors: 贾艳宏
Original assignee: Halifax Fan Shenzhen Co ltd
Current assignee: Halifax Fan Shenzhen Co ltd
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2022-01-07
Anticipated expiration: 2031-05-31

Abstract

The utility model belongs to the technical field of fans, and particularly relates to a fan and an air supply system. The fan includes a housing structure and a drive structure. The shell structure includes the wind shell, and the wind channel has been seted up to the wind shell, and the wind channel has the air intake that supplies the medium to flow in and supplies the air outlet that the medium flows out, and the holding chamber has still been seted up to the wind shell, and holding chamber and wind channel interval set up, and the chamber wall department that the holding chamber corresponds the air intake has seted up the switching hole. The drive structure is including setting up in the driver in holding chamber, setting up in the impeller of air intake department and wearing to establish the transmission shaft in switching hole, and the impeller is connected to the one end of transmission shaft, and the driver is connected to the other end of transmission shaft, and driver drive impeller rotates to make the medium flow into the wind channel in the air intake and flow out the wind channel in the air outlet. The utility model can avoid the damage of the medium flowing through the air channel to the driver and improve the transmission efficiency.

Description

Fan and air supply system

Technical Field

The utility model belongs to the technical field of fans, and particularly relates to a fan and an air supply system.

Background

At present, the axial flow fan has wide application, gas flows in parallel to a fan shaft, the axial flow fan is generally used in occasions with higher flow requirements and lower pressure requirements, and the axial flow fan mainly comprises a fan impeller and a casing and has a simple structure.

However, most of the common axial flow fans in the market are directly connected, and the motor is placed in the medium channel. Or the motor is arranged outside the medium channel (wind shell) and is connected with the motor and the impeller through belt transmission. If the conveyed gas medium is corrosive or has high temperature, the motor is easy to be damaged, so that the service life of the fan is shortened, and the motor is placed outside the medium channel and is driven by the belt, so that the transmission efficiency is low.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of this application is to provide a fan, aim at solving and how to avoid the motor by the corruption or by high temperature damage and improve the problem of transmission efficiency.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: there is provided a fan for conveying a medium, the fan comprising:

the shell structure comprises an air shell, the air shell is provided with an air channel, the air channel is provided with an air inlet for the medium to flow in and an air outlet for the medium to flow out, the air shell is also provided with an accommodating cavity, the accommodating cavity and the air channel are arranged at intervals, and a transfer hole is formed in the accommodating cavity corresponding to the cavity wall of the air inlet; and

the drive structure, including set up in the driver in holding chamber, set up in the impeller of air intake department and wear to establish the transmission shaft in switching hole, the one end of transmission shaft is connected the impeller, and the other end of transmission shaft is connected the driver, the driver drive the impeller rotates, so that the medium in the air intake flows in the wind channel and in the air outlet flows out the wind channel.

In one embodiment, the wind shell comprises a shell with the accommodating cavity and an outer side surrounding plate with two ends connected with the shell, the wind channel is formed between the outer side surrounding plate and the shell, and the adapter hole is formed in the shell.

In one embodiment, the number of the outer side enclosing plates is two, the shell is located between the two outer side enclosing plates, and the two outer side enclosing plates and the two side surfaces of the shell respectively form the air duct.

In one embodiment, the wind shell further comprises an inner side coaming which is positioned on the wind channel and is attached to the surface of the shell sleeve.

In one embodiment, the casing structure further includes a first flange disposed opposite to the air outlet, and a first air guiding pipe connecting the first flange and the air casing.

In one embodiment, the first air guide pipe comprises a first straight pipe section connected with the first flange and a first reducing pipe section with one end connected with the first straight pipe section and the other end connected with the wind casing, and the inner diameter of the first reducing pipe section is gradually enlarged along the direction of the first straight pipe section pointing to the wind casing.

In one embodiment, the casing structure further includes a second flange disposed opposite to the air inlet, and a second air guiding pipe connecting the second flange and the air casing.

In one embodiment, the second air guiding pipe comprises a second straight pipe section connected with the second flange and a second variable diameter pipe section with one end connected with the second straight pipe section and the other end connected with the air casing, the inner diameter of the second variable diameter pipe section is gradually enlarged along the direction of the second straight pipe section pointing to the air casing, and the impeller is located in the second straight pipe section.

In one embodiment, the blower further includes a supporting seat disposed in the accommodating chamber, two ends of the supporting seat are respectively connected to two side chamber walls of the accommodating chamber, and the driver is disposed on the supporting seat.

Another purpose of this application still lies in providing an air supply system, it includes as above the fan, air supply system still includes air-supply line and air-out pipe, the air-supply line is connected in air inlet department shell structure, air-out pipe in air outlet department connects shell structure.

The beneficial effect of this application lies in: the accommodating cavity and the air channel are respectively formed in the air casing, and the driver is arranged in the accommodating cavity, so that the driver is prevented from being damaged by media flowing through the air channel, and the service life of the driver is prolonged. And the driver directly drives the impeller to rotate through the transmission shaft, so that the transmission efficiency is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or exemplary technical descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.

Fig. 1 is a schematic perspective view of a fan according to an embodiment of the present disclosure;

FIG. 2 is an exploded schematic view of the blower of FIG. 1;

FIG. 3 is a cross-sectional schematic view of the blower of FIG. 1;

FIG. 4 is a schematic perspective view of another embodiment of the blower of FIG. 1;

FIG. 5 is a schematic top view of the blower of FIG. 4;

FIG. 6 is a cross-sectional schematic view of the blower of FIG. 4;

FIG. 7 is a side schematic view of the blower of FIG. 4.

Wherein, in the figures, the respective reference numerals:

100. a fan; 101. a housing structure; 10. a wind shell; 11. a shell; 12. an outer side coaming; 13. an inner side coaming; 14. switching the hole; 61. a drain pipe; 62. a plug; 20. a drive structure; 21. a driver; 22. a drive shaft; 23. an impeller; 111. an accommodating cavity; 152. a first flange; 151. a first air duct; 161. a second air duct; 162. a second flange; 154. a first straight pipe section; 153. a first variable diameter pipe section; 17. a supporting seat; 164. a second straight tube section; 163. a second variable diameter pipe section; 114. an air inlet; 115. an air outlet; 113. an air duct;

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and operate, and thus are not to be construed as limiting the present application, and the specific meanings of the above terms may be understood by those skilled in the art according to specific situations. The terms "first", "second" and "first" are used merely for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise.

Referring to fig. 1 and 3, a blower 100 for conveying a medium, which may be a high-temperature gas, a corrosive gas, or a mixture of dust and gas, is provided in the embodiments of the present application. The fan 100 comprises a housing structure 101 and a drive structure 20. Optionally, the fan 100 in this embodiment is an axial fan. The casing structure 101 includes an air casing 10, the air casing 10 is provided with an air duct 113, and the air duct 113 has an air inlet 114 for the medium to flow in and an air outlet 115 for the medium to flow out. Optionally, the wind housing 10 is made of a metal material with temperature resistance, such as metallic iron or aluminum. The wind casing 10 further has a receiving cavity 111, and the receiving cavity 111 and the wind channel 113 are spaced apart from each other. Optionally, in this embodiment, the cavity depth direction of the accommodating cavity 111 is perpendicular to the flow direction of the medium in the air duct 113. The accommodating chamber 111 has a transfer hole 14 corresponding to the wall of the air inlet 114. The driving structure 20 includes a driver 21 disposed in the accommodating cavity 111, an impeller 23 disposed at the air inlet 114, and a transmission shaft 22 penetrating through the transfer hole 14, wherein one end of the transmission shaft 22 is connected to the impeller 23, and the other end of the transmission shaft 22 is connected to the driver 21. Optionally, in this embodiment, the driver 21 is a servo motor. The rotation power of the servo motor is directly transmitted to the impeller 23 through the transmission shaft 22, so that the servo motor directly drives the impeller 23 to rotate, and the medium flows into the air duct 113 through the air inlet 114 and flows out of the air duct 113 through the air outlet 115, and the transmission efficiency is high.

Referring to fig. 1 and 3, the accommodating cavity 111 and the air duct 113 are respectively formed on the air casing 10, and the driver 21 is disposed in the accommodating cavity 111, so that the driver 21 is prevented from being damaged by a medium flowing through the air duct 113, and the service life of the driver 21 is prolonged. And the driver 21 directly drives the impeller 23 to rotate through the transmission shaft 22, thereby improving transmission efficiency.

In one embodiment, the wind shell 10 includes a shell 11 having a receiving cavity 111, and an outer shroud 12 connected to the shell 11 at both ends, wherein an air duct 113 is formed between the outer shroud 12 and the shell 11, and the switch hole 14 is opened in the shell 11. Optionally, the outer enclosing plate 12 is provided in an arc shape, and two ends of the outer enclosing plate 12 are respectively connected to two ends of the shell 11, so that the air duct 113 is formed between the outer enclosing plate 12 and the shell 11.

Referring to fig. 4 and 6, shell 11 is made of aluminum foil plate with heat insulation and noise reduction features.

Optionally, the blower 100 further comprises a drain pipe 61 and a plug 62, wherein one end of the drain pipe 61 is connected with the outer side enclosure 12 and the ventilation channel 113, and the plug 62 is arranged at the other end of the drain pipe 61. The drain pipe 61 can drain the liquid in the air duct 113 by opening the plug 62.

In one embodiment, two outer side enclosing plates 12 are provided, the shell 11 is located between the two outer side enclosing plates 12, and the two outer side enclosing plates 12 and two side surfaces of the shell 11 respectively form the air ducts 113. Alternatively, the air inlets 114 of the two air ducts 113 are located on the same side of the shell 11, and similarly, the air outlets 115 of the two air ducts 113 are located on the same side of the shell 11. The impeller 23 rotates at the air inlet 114, so as to drive the medium to synchronously enter the two air channels 113 and flow out of the corresponding air channels 113 at the air outlets 115.

Referring to fig. 1 and 3, in one embodiment, the wind housing 10 further includes an inner shroud 13 disposed on the wind channel 113 and attached to the surface of the shell 11. Alternatively, the transmission of the temperature in the medium to the housing 11 can be reduced by providing the inside shroud 13, thereby reducing the influence of the temperature of the medium on the driver 21.

In one embodiment, the housing structure 101 further includes a first flange 152 disposed opposite the air outlet 115 and a first air guiding duct 151 connecting the first flange 152 and the wind casing 10. Optionally, the wind casing 10 may be connected to the wind outlet pipe through the first flange 152, that is, the connection between the fan 100 and the wind outlet pipe may be realized through the butt joint between the first flange 152 and the wind outlet flange on the wind outlet pipe.

Referring to fig. 1 and 3, in an embodiment, the first air guiding pipe 151 includes a first straight pipe section 154 connected to the first flange 152, and a first variable diameter pipe section 153 having one end connected to the first straight pipe section 154 and the other end connected to the wind casing 10, wherein an inner diameter of the first variable diameter pipe section 153 is gradually increased along a direction in which the first straight pipe section 154 points to the wind casing 10. Alternatively, the medium may be guided out of the air duct 113 by the engagement of the first variable diameter pipe section 153 and the first straight pipe section 154.

Referring to fig. 1 and 3, in an embodiment, the casing structure 101 further includes a second flange 162 disposed opposite to the air inlet 114, and a second air guiding pipe 161 connecting the second flange 162 and the air casing 10. Alternatively, the blower housing 10 may be connected to the air inlet duct by the second flange 162, i.e., the connection of the blower 100 to the air inlet duct may be achieved by the abutment of the second flange 162 and the air inlet flange on the air inlet duct. It can be understood that the air inlet pipe is used for conveying the medium, and the medium flows into the air duct 113 under the action of the impeller 23 and then flows into the air outlet pipe from the air duct 113.

Referring to fig. 1 and 3, in an embodiment, the second air guiding pipe 161 includes a second straight pipe section 164 connected to the second flange 162 and a second variable diameter pipe section 163 having one end connected to the second straight pipe section 164 and the other end connected to the wind casing 10, an inner diameter of the second variable diameter pipe section 163 is gradually increased along a direction in which the second straight pipe section 164 points to the wind casing 10, and the impeller 23 is located in the second straight pipe section 164. Alternatively, the medium can be introduced from the air inlet duct into the air duct 113 by the cooperation of the second variable diameter duct section 163 and the second straight duct section 164.

Referring to fig. 7, in an embodiment, the blower 100 further includes a supporting base 17 disposed in the accommodating cavity 111, two ends of the supporting base 17 are respectively connected to two side cavity walls of the accommodating cavity 111, and the driver 21 is disposed on the supporting base 17. Optionally, two ends of the supporting seat 17 are respectively screwed to the cavity walls of the accommodating cavity 111, and the driver 21 is screwed to the supporting seat 17, so that the driver 21 is kept stable in the accommodating cavity 111.

In one embodiment, the driving structure 20 further includes a shaft seal disposed around the transmission shaft 22 for sealing a gap between the transmission shaft 22 and a wall of the through hole 14. The shaft seal comprises three layers of novus shaft seal rings 25 and a cover plate connected with one shaft seal ring 25, and further comprises a V-shaped shaft seal ring 24 sleeved with the transmission shaft 22.

Referring to fig. 1 and fig. 3, the present invention further provides an air supply system, which includes a blower 100, and the specific structure of the blower 100 refers to the above embodiments, and since the air supply system adopts all technical solutions of all the above embodiments, the present invention also has all the beneficial effects brought by the technical solutions of the above embodiments, and details are not repeated herein.

In one embodiment, the air supply system further includes an air inlet duct connected to the housing structure 101 at the air inlet 114 and an air outlet duct connected to the housing structure 101 at the air outlet 115.

The above are merely alternative embodiments of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement or the like made within the spirit and principle of the present application shall be included in the scope of the claims of the present application.

Claims

1. A fan for conveying a medium, the fan comprising:

2. The fan of claim 1, wherein: the wind shell comprises a shell sleeve with the containing cavity and outer side surrounding plates, the two ends of each outer side surrounding plate are connected with the shell sleeve, the wind channel is formed between the outer side surrounding plates and the shell sleeve, and the switching hole is formed in the shell sleeve.

3. The fan of claim 2, wherein: the outer side surrounding plates are two, the shell sleeve is located between the two outer side surrounding plates, and the two outer side surrounding plates and the two side surfaces of the shell sleeve respectively form the air duct.

4. The fan of claim 2, wherein: the wind shell also comprises an inner side coaming plate which is positioned on the wind channel and attached to the surface of the shell sleeve.

5. The fan according to any of claims 1-4, wherein: the shell structure further comprises a first flange arranged opposite to the air outlet and a first air guide pipe connected with the first flange and the air shell.

6. The fan of claim 5, wherein: the first air guide pipe comprises a first straight pipe section connected with the first flange and a first reducing pipe section, one end of the first reducing pipe section is connected with the first straight pipe section, the other end of the first reducing pipe section is connected with the air casing, and the inner diameter of the first reducing pipe section is gradually enlarged along the direction of the first straight pipe section pointing to the air casing.

7. The fan according to any of claims 1-4, wherein: the shell structure further comprises a second flange arranged opposite to the air inlet and a second air guide pipe connected with the second flange and the air shell.

8. The fan of claim 7, wherein: the second air guide pipe comprises a second straight pipe section connected with the second flange and a second reducing pipe section, one end of the second reducing pipe section is connected with the second straight pipe section, the other end of the second reducing pipe section is connected with the air casing, the inner diameter of the second reducing pipe section is gradually enlarged along the direction of the second straight pipe section pointing to the air casing, and the impeller is located in the second straight pipe section.

9. The fan according to any of claims 1-4, wherein: the fan also comprises a supporting seat arranged in the accommodating cavity, two ends of the supporting seat are respectively connected with the two side cavity walls of the accommodating cavity, and the driver is arranged on the supporting seat.

10. An air supply system, comprising the blower of any one of claims 1-9, further comprising an air inlet duct and an air outlet duct, wherein the air inlet duct is connected to the housing structure at the air inlet, and the air outlet duct is connected to the housing structure at the air outlet.