Dustproof noise reduction fan
By installing a dustproof and noise-reducing device at the air inlet of the fan, and using the pipe body and resin cotton to filter dust, the wear and noise problems of the fan in high dust environments are solved, achieving noise reduction and dust prevention effects, and improving the stability and noise control of the equipment.
Patent Information
- Application Number
- CN202520569826.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-03-28
AI Technical Summary
In high-dust environments, existing sand regeneration or dust collector backflushing fans suffer from dust entering the fan, leading to impeller wear, increased noise, and noise leakage. There is a lack of effective dust prevention and noise reduction measures.
A dustproof and noise-reducing device, including a pipe and resin cotton, is installed at the air inlet of the fan. The air inlet holes on the pipe and the resin cotton are used to filter dust, reduce noise and reduce the leakage of airflow friction sound.
It effectively filters dust, reduces impeller wear, lowers noise, achieves a silencing effect, prevents noise leakage, and improves the service life and operational stability of the fan.
Smart Images
Figure CN223739680U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a fan technical field especially relates to a dustproof silencing fan. BACKGROUND
[0002] The fan is a kind of general equipment by mechanical energy conversion gas kinetic energy, realizes gas delivery or pressurization, is widely used in industry, building, environmental protection etc. Sand regeneration or dust collector back flushing fan is special industrial fan specially designed for high dust, high wear, high frequency impact working condition, mainly used in foundry sand regeneration, pneumatic conveying and dust collector pulse dust cleaning etc. The noise of fan mainly comes from aerodynamic noise, mechanical noise and electromagnetic noise. In addition, dust into fan can cause impeller wear, efficiency decline, noise increase, even equipment failure.
[0003] Sand regeneration or dust collector back flushing fan, the air inlet of fan is not connected with pipeline, and the dust in air inlet is large, dust into fan can increase the wear of impeller, simultaneously can influence the new air outlet, and noise can be leaked at air inlet, increases noise, thus a new dustproof silencing fan is required. UTILITARY MODEL CONTENTS
[0004] In order to make up for the above insufficient, the utility model provides a dustproof silencing fan, and specific scheme is as follows:
[0005] A dustproof silencing fan, including fan body, dustproof silencing device is fixed at the air inlet of fan body, the dustproof silencing device includes pipe body and resin cotton, one end of pipe body is communicated with the air inlet and is fixed, and the other end is sealed, a plurality of air inlet through holes are arranged on the lateral wall of pipe body, and the pipe body is wrapped with resin cotton.
[0006] Preferably, the resin cotton is fixed on the outside of the pipe body by a bandage.
[0007] Preferably, the wrapping thickness of the resin cotton is 30-90mm.
[0008] Preferably, the length of the pipe body is 400-500mm, and the inner diameter is 100-140mm.
[0009] Preferably, the hole diameter of the air inlet through hole is 3-10mm.
[0010] Preferably, the spacing between adjacent two air inlet through holes is 3-10mm.
[0011] Preferably, the axis of the pipe body coincides with the axis of the fan body.
[0012] The utility model has the following beneficial effects:
[0013] The noise at the fan inlet mainly includes the howling of the air inlet and the air flow friction noise of the air inlet, the utility model discloses a plurality of air inlet through -holes of side part are used to air intake, and meanwhile the air inlet through -holes are wrapped by the resin cotton, so that the howling of the air inlet and the air flow friction noise of the air inlet are greatly reduced, and the effect of noise elimination is achieved, and meanwhile the resin cotton and the air inlet through -holes are used for filtering, so that the dust entering the inside of the fan body is greatly reduced, the abrasion of the impeller is reduced, and the friction sound of the dust and the impeller is also reduced. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is the front view of dustproof silencing fan;
[0015] Figure 2 It is the side view of dustproof silencing fan;
[0016] Figure 3 It is the structural schematic view of pipe body.
[0017] LEGEND:
[0018] 1, pipe body;2, air inlet through -hole;3, resin cotton;4, bandage;5, fan body. DETAILED DESCRIPTION
[0019] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.
[0020] REFERENCE Figure 1 Figure 3 A dustproof silencing fan, including fan body 5, the air inlet of fan body 5 is fixed with dustproof silencing device, and the dustproof silencing device includes pipe body 1 and resin cotton 3, and in the specific embodiment, the length of pipe body 1 is 440 mm, and the inner diameter is 120 mm, the resin cotton 3 is fixed on the outside of pipe body 1 using bandage 4, and the wrapping thickness of resin cotton is 60 mm in the specific embodiment;Resin cotton 3 wraps pipe body 1, one end of pipe body 1 is communicated with air inlet and is fixed, and the other end is sealed, a plurality of air inlet through -holes 2 are arranged on the side wall of pipe body 1, the hole diameter of air inlet through -hole 2 is 6 mm in the specific embodiment, and the spacing between adjacent two air inlet through -holes 2 is 6 mm;The axis of pipe body 1 coincides with the axis of fan body.
[0021] The resin cotton 3 wraps the pipe body 1, preliminarily filters dust and reduces noise, prevents sundries from entering the pipe body 1, the air inlet through hole 2 of the pipe body 1 further prevents sundries and reduces noise, can greatly reduce the howling of the air inlet, simultaneously prevents air flow friction sound of the air inlet from leaking out, and achieves the effect of silencing.
[0022] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application have been described in detail, for those skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.
Claims
1. A dust-proof and sound-reducing fan comprising a fan body, characterized in that: The dustproof silencing device is fixed at the air inlet of the fan body, and comprises a pipe body and resin wool.
2. The dustproof and silencing fan according to claim 1, characterized in that: The resin wool is fixed on the outside of the pipe body by a bandage.
3. The dustproof and silencing fan according to claim 1, characterized in that: The thickness of the resin wool is 30-90mm.
4. The dustproof and silencing fan according to claim 1, characterized in that: The diameter of the air inlet hole is 3-10mm.
5. The dustproof and silencing fan according to claim 1, characterized in that: The distance between two adjacent air inlet holes is 3-10mm.
6. The dust-proof and silencing fan according to claim 1, characterized in that: The axis of the pipe body coincides with the axis of the fan body.