CN215409423U - High-efficiency fan capable of preventing air turbulence at air inlet - Google Patents
High-efficiency fan capable of preventing air turbulence at air inlet Download PDFInfo
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- CN215409423U CN215409423U CN202120818899.3U CN202120818899U CN215409423U CN 215409423 U CN215409423 U CN 215409423U CN 202120818899 U CN202120818899 U CN 202120818899U CN 215409423 U CN215409423 U CN 215409423U
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Abstract
The utility model discloses a high-efficiency fan for preventing air turbulence at an air inlet, which comprises a shell and air inlets arranged at two sides of the shell; an air outlet is formed in the shell; a sealing element is arranged between the air inlet device and the shell; the sealing element is coaxially sleeved at the outer position of one end of the air inlet device close to the shell; one end of the sealing element is connected with the casing in a sealing way, and the other end of the sealing element is connected with the air inlet device in a sealing way. According to the efficient fan for preventing air turbulence at the air inlet, through the arrangement of the sealing piece, on one hand, external air is prevented from entering the shell from the joint of the shell and the air inlet device, air turbulence at the air inlet is avoided, air inlet smoothness is guaranteed, and the efficiency of the fan is improved; on the other hand, the sealing member is connected between the casing and the air inlet device, so that the connection strength of the casing and the air inlet device is improved, and the problem of larger air leakage caused by loosening of the connection part is avoided.
Description
Technical Field
The utility model relates to the technical field of fans, in particular to a high-efficiency fan capable of preventing air turbulence at an air inlet.
Background
The centrifugal fan is a device for conveying gas media, is widely applied to various industries such as mines, environmental protection, cement building materials and the like, is also a king of power consumption in national economic production in China, wastes more than 400 hundred million degrees of power every year, and therefore, the improvement of the efficiency of the fan is significant, and meanwhile, the energy-saving potential is huge.
The centrifugal fan main unit generally comprises a casing, an impeller and a transmission part, wherein an air inlet device is arranged at an air inlet of the casing and used for collecting air flow; the air inlet device extends to the inlet of the impeller to play a role in separating media between the shell and the impeller, and internal leakage loss caused by the fact that high-pressure airflow of the shell flows into the inlet of the impeller is avoided. However, because the impeller and the casing are in a relative rotation state, the casing and the impeller cannot be completely sealed, a small part of high-pressure air flow of the casing leaks into the impeller from the impeller cover and the annular gap at the outlet end of the air inlet device, the high-pressure air flow is sprayed into the flow channel of the impeller and generates larger interference with a main flow medium from the air inlet device, turbulence is generated at the blade inlet of the impeller, and finally partial blockage is caused, so that the work efficiency of the fan is reduced.
The utility model patent with publication number CN103062125A discloses a centrifugal fan, which improves the structure of an air inlet device, so that the direction of the air flow leaking from the casing into the impeller is consistent with the flow direction of the main flow medium of the impeller, and turbulence is avoided, thereby improving the efficiency of the centrifugal fan. Based on this, how to design a high-efficiency fan for preventing air turbulence at the air inlet is the technical problem to be solved by the utility model.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides the high-efficiency fan for preventing the gas turbulence at the air inlet.
The utility model solves the technical problems through the following technical means:
the high-efficiency fan for preventing air turbulence at the air inlet comprises a shell and air inlets arranged at two sides of the shell; an air outlet is formed in the shell;
a sealing element is arranged between the air inlet device and the shell; the sealing element is coaxially sleeved at the outer position of one end of the air inlet device close to the shell; one end of the sealing element is connected with the casing in a sealing way, and the other end of the sealing element is connected with the air inlet device in a sealing way.
As an improvement of the technical scheme, the side wall of the air inlet device of the high-efficiency fan for preventing air turbulence at the air inlet is provided with an installation notch; one end of the sealing element is abutted against the shell, and the other end of the sealing element is abutted against the mounting notch of the air inlet device; and two ends of the sealing element are respectively detachably connected with the casing and the air inlet device through bolts.
As an improvement of the above technical solution, the end of the sealing member is provided with a support part extending along the radial direction; the abutting parts at the two ends of the sealing element abut against the mounting notch of the air inlet device and the shell respectively; first sealing gaskets are arranged between the air inlet device and the shell as well as between the air inlet device and the abutting part.
As the improvement of the technical scheme, the sealing element of the high-efficiency fan for preventing the gas turbulence at the air inlet is cylindrical; the seal comprises two arcuate plates; the two arc-shaped plates are oppositely arranged; the two arc plates are detachably connected through bolts.
As an improvement of the technical scheme, the efficient fan for preventing the air turbulence of the air inlet is characterized in that a second sealing gasket is arranged between the two arc-shaped plates.
The utility model has the advantages that: according to the efficient fan for preventing air turbulence at the air inlet, through the arrangement of the sealing piece, on one hand, external air is prevented from entering the shell from the joint of the shell and the air inlet device, air turbulence at the air inlet is avoided, air inlet smoothness is guaranteed, and the efficiency of the fan is improved; on the other hand, the sealing member is connected between the casing and the air inlet device, so that the connection strength of the casing and the air inlet device is improved, and the problem of larger air leakage caused by loosening of the connection part is avoided.
Drawings
Fig. 1 is a schematic structural view of a fan according to the present invention.
Fig. 2 is a schematic view of the connection between the housing and the air inlet device according to the present invention.
FIG. 3 is an enlarged view of the structure of the present invention at A.
Fig. 4 is another connection diagram of the housing and the air inlet device of the present invention.
FIG. 5 is an enlarged view of the structure of the present invention at B.
Fig. 6 is a schematic view of a seal according to the present invention.
Fig. 7 is another schematic view of the seal of the present invention.
Fig. 8 is a schematic view of the connection between the arcuate plates of the present invention.
Fig. 9 is a schematic structural view of the air inlet device of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to the attached drawings, the high-efficiency fan for preventing air turbulence at an air inlet comprises a machine shell 1 and air inlets 2 arranged at two sides of the machine shell 1; an air outlet 11 is formed in the machine shell 1;
a sealing element 3 is arranged between the air inlet device 2 and the shell 1; the sealing element 3 is coaxially sleeved at the outer position of one end of the air inlet device 2 close to the shell 1; one end of the sealing element 3 is hermetically connected with the casing 1, and the other end of the sealing element is hermetically connected with the air inlet device 2;
the sealing element 3 is coaxially sleeved at the outer position of one end of the air inlet device 2 close to the shell 1, so that the joint of the air inlet device 2 and the shell 1 is positioned in the sealing element 3; one end of the sealing element 3 is hermetically connected with the casing 1, and the other end of the sealing element is hermetically connected with the air inlet device 2, so that a sealed space isolated from the outside is formed among the sealing element 3, the casing 1 and the air inlet device 2, and the joint of the air inlet device 2 and the casing 1 is positioned in the sealed space to form sealing for the joint of the air inlet device 2 and the casing 1, so that air turbulence at an air inlet caused by the fact that external air enters the casing 1 from the joint of the air inlet device 2 and the casing 1 is avoided, air inlet smoothness and air inlet amount are ensured, and the fan efficiency is improved; meanwhile, the sealing element 3 is connected between the casing 1 and the air inlet device 2, so that the connecting strength of the casing 1 and the air inlet device 2 is improved, and the joint of the casing 1 and the air inlet device 2 is prevented from loosening; the sealing member 3 may be made of a metal member such as a stainless steel member;
according to the efficient fan for preventing air turbulence at the air inlet, through the arrangement of the sealing piece, on one hand, external air is prevented from entering the shell from the joint of the shell and the air inlet device, air turbulence at the air inlet is avoided, air inlet smoothness is guaranteed, and the efficiency of the fan is improved; on the other hand, the sealing member is connected between the casing and the air inlet device, so that the connection strength of the casing and the air inlet device is improved, and the problem of larger air leakage caused by loosening of the connection part is avoided.
As an improvement of the above technical solution, an installation notch 21 is arranged on the side wall of the air inlet device 2; one end of the sealing element 3 is abutted against the machine shell 1, and the other end of the sealing element is abutted against the mounting notch 21 of the air inlet device 2; two ends of the sealing element 3 are detachably connected with the casing 1 and the air inlet device 2 through bolts respectively;
the arrangement of the installation notch 21 is convenient for enabling the end part of the sealing element 3 to abut against the side wall of the air inlet device 2, and further convenient for bolt connection; sealing member 3 is connected through bolt and casing 1 and 2 dismantlement formulas of air inlet ware, easy dismounting, and the fastness is good, helps improving the firm in connection nature of casing 1 and air inlet ware 2.
As a modification of the above technical solution, an end of the sealing member 3 is provided with an abutting portion 31 extending in a radial direction; the abutting parts 31 at the two ends of the sealing element 3 abut against the mounting notch of the air inlet device 2 and the machine shell 1 respectively; first sealing gaskets 311 are arranged between the air inlet device 2 and the abutting part 31 as well as between the machine shell 1 and the abutting part 31;
the setting of portion 31 supports improves the area of contact of sealing member 3 and casing 1, air inlet ware 2 on the one hand, improves joint strength, and on the other hand, the sealed pad 311 of easy to assemble improves the leakproofness between sealing member 3 and casing 1 and the air inlet ware 2.
As an improvement of the above technical solution, the sealing member 3 is cylindrical; the seal 3 comprises two arcuate plates 32; the two arc plates 32 are oppositely arranged; the two arc plates 32 are detachably connected through bolts;
the sealing element 3 is arranged in a cylindrical shape to be sleeved outside the air inlet device 2, and specifically, the sealing element 3 can be arranged in a horn mouth shape or a cylindrical shape; the sealing piece 3 is formed by connecting two arc plates 32 in a detachable mode, so that the sealing piece 3 is conveniently installed between the machine shell 1 and the air inlet device 2, and the sealing piece 3 can be conveniently disassembled and assembled.
As an improvement of the above technical solution, in order to improve the sealing performance of the sealing member 3 and prevent air leakage due to a gap between the two arc plates 32, a second gasket 321 is disposed between the two arc plates 32.
It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (5)
1. The high-efficiency fan for preventing air turbulence at the air inlet comprises a shell (1) and air inlets (2) arranged at two sides of the shell (1); an air outlet (11) is formed in the shell (1); the method is characterized in that:
a sealing element (3) is arranged between the air inlet device (2) and the shell (1); the sealing element (3) is coaxially sleeved at the outer position of one end of the air inlet device (2) close to the casing (1); one end of the sealing element (3) is hermetically connected with the casing (1), and the other end of the sealing element is hermetically connected with the air inlet device (2).
2. The efficient blower for preventing air turbulence at an air inlet according to claim 1, wherein: an installation notch (21) is formed in the side wall of the air inlet device (2); one end of the sealing element (3) is abutted against the casing (1), and the other end of the sealing element is abutted against the mounting notch (21) of the air inlet device (2); and two ends of the sealing element (3) are respectively detachably connected with the casing (1) and the air inlet device (2) through bolts.
3. The efficient blower for preventing air turbulence at an air inlet according to claim 1, wherein: the end part of the sealing element (3) extends along the radial direction and is provided with an abutting part (31); abutting parts (31) at two ends of the sealing element (3) abut against an installation notch of the air inlet device (2) and the machine shell (1) respectively; first sealing gaskets (311) are arranged between the air inlet device (2) and the shell (1) and between the abutting parts (31).
4. The efficient blower for preventing air turbulence at an air inlet according to claim 1, wherein: the sealing element (3) is cylindrical; the seal (3) comprises two arcuate plates (32); the two arc plates (32) are oppositely arranged; the two arc plates (32) are detachably connected through bolts.
5. The high efficiency fan for preventing air turbulence at an air inlet according to claim 4, wherein: a second sealing gasket (321) is arranged between the two arc-shaped plates (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120818899.3U CN215409423U (en) | 2021-04-19 | 2021-04-19 | High-efficiency fan capable of preventing air turbulence at air inlet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120818899.3U CN215409423U (en) | 2021-04-19 | 2021-04-19 | High-efficiency fan capable of preventing air turbulence at air inlet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215409423U true CN215409423U (en) | 2022-01-04 |
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ID=79672322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120818899.3U Active CN215409423U (en) | 2021-04-19 | 2021-04-19 | High-efficiency fan capable of preventing air turbulence at air inlet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215409423U (en) |
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2021
- 2021-04-19 CN CN202120818899.3U patent/CN215409423U/en active Active
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