WO2018000203A1

WO2018000203A1 - High-muting duct fan

Info

Publication number: WO2018000203A1
Application number: PCT/CN2016/087512
Authority: WO
Inventors: 黄冠
Original assignee: 黄冠
Priority date: 2016-06-28
Filing date: 2016-06-28
Publication date: 2018-01-04

Abstract

A high-muting duct fan, comprising an enclosure (A), a silencing cover (B) mounted inside the enclosure (A), a fan assembly (D) mounted inside the silencing cover (B) and a sound-absorbing sleeve (E) wrapped over the silencing cover (B); the silencing cover (B) comprises an air intake end silencing duct shell (3), a main silencing duct shell (1) and an air outlet end silencing duct shell (2), connected in sequence to form one piece; the main silencing duct shell (1) is a hollow round cylinder open at both ends, the air outlet end silencing duct shell (2) and the air intake end silencing duct shell (3) are both hollow truncated cones open at both ends; multiple silencing holes (C) are provided all around on the side wall of the main silencing duct shell (1), the side wall of the air outlet end silencing duct shell (2) and the side wall of the air intake end silencing duct shell (3). By joining the main silencing duct shell (1) with the air intake end and air outlet end silencing duct shells into a silencing screen surrounding the fan assembly (D), and using silencing holes (C) and a sound absorbing sleeve (E) to maximize noise reduction, a fan body can be provided with good muting effects.

Description

High-quiet duct fan

Technical field

The utility model relates to the technical field of ventilation equipment, in particular to a high-quiet pipeline fan.

Background technique

Pipeline fan is a kind of ventilation equipment commonly used in industrial plants, real estate buildings, indoor ventilation or pipeline pressure; the traditional pipeline fan is not reasonable because of structural design, the main problem is: fan body Basically, there is no noise reduction function. During the operation of the fan, due to the wind resistance, it will generate great noise. At this time, it is generally necessary to install the muffler on the ventilation duct to cooperate with the fan to reduce noise, which greatly increases the noise. The cost of construction installation and the complexity of the ventilation ducts. At the same time, the existing wind turbines also have problems such as complicated structure and inconvenient construction and installation on site.

Utility model content

In view of the deficiencies of the prior art described above, it is an object of the present invention to provide a high-quiet duct fan.

In order to achieve the above object, the utility model adopts the following technical solutions:

A high-quiet duct fan that includes

a casing;

a muffler cover comprising a main muffling tube shell built in the casing, an air outlet silencer tube shell and an air inlet end silencing tube shell, the main silencing tube shell being open at both ends and hollow cylindrical The structure body, the air outlet end silencer tube shell and the air inlet end silencer tube shell are both open and hollow truncated-shaped structures at both ends, and the air inlet end of the air outlet end silencer tube shell and the main silencer tube shell The air port is docked and the air outlet end is sleeved in the air outlet port of the casing, and the air inlet end of the air inlet end of the air duct is docked with the air inlet port of the main silencer tube, and the air outlet end is sleeved to the casing. In the inlet port, the side wall of the main muffler tube is out a plurality of silencing holes are circumferentially opened on the side wall of the wind-end silencer tube shell and the side wall of the air-sending silencer tube shell;

a fan assembly, the fan assembly is installed in a main silencer tube;

as well as

a sound absorbing sleeve is disposed between the casing and the muffler cover and is simultaneously wrapped on the outer wall of the main muffler tube shell, the outlet end muffler tube shell and the air inlet end muffler tube shell.

Preferably, a plurality of button holes are circumferentially opened on the side wall of the air inlet port of the main muffler tube and the side wall of the air outlet port, and the outer side of the side wall of the air outlet end of the air damper is A plurality of buckles are disposed on the outer side of the sidewall of the wind-end silencer tube, and the buckles are snap-fitted into the card holes.

Preferably, the sound absorbing sleeve is formed by wrapping a felt.

Preferably, the casing comprises a main pipe sleeve sleeved on the sound absorbing sleeve, an air inlet end connecting pipe sleeved in the air inlet port of the main pipe casing, and an air outlet end sleeved in the air outlet port of the main pipe casing. The air inlet end of the air inlet end of the air outlet end is threaded into the air inlet end connecting pipe, and the air outlet end of the air outlet end of the sound absorbing tube is threaded into the air outlet end connecting pipe.

Preferably, the outer side wall of the air inlet end connecting pipe and the outer side wall of the air outlet end connecting pipe are formed with at least one reinforcing arm that abuts against the outer surface of the side wall of the main pipe.

Preferably, a strap is disposed at a position outside the side wall of the air inlet end pipe and adjacent to the main pipe shell and a position outside the side wall of the air outlet end connecting pipe and adjacent to the main pipe.

Due to the adoption of the above scheme, the utility model forms a silencing barrier on the periphery of the fan assembly through the cooperation of the main silencing shell and the air inlet end and the air outlet end silencer tube shell, and realizes the noise by using the function of the silencing hole and the sound absorbing sleeve. The absorption is maximized, so that the fan body has a good mute effect; the structure is simple, the disassembly and assembly is convenient and quick, and the mute effect is remarkable, which can meet the actual demand of low noise on the construction site or the installation environment, and has strong practical value and market. Promote value.

DRAWINGS

1 is a schematic view of the overall structure of an embodiment of the present invention;

2 is a schematic exploded view of the structure of the embodiment of the present invention;

3 is a schematic exploded view showing the structure of the muffler cover of the embodiment of the present invention.

detailed description

The embodiments of the present invention are described in detail below with reference to the accompanying drawings, but the present invention can be implemented in various different ways as defined and covered by the claims.

As shown in FIG. 1 to FIG. 3, the present embodiment provides a high-quiet duct fan, which includes

a casing A that can be assembled and integrated with an external ventilation duct;

a muffler cover B installed in the casing A, the muffler cover B comprises a main muffling tube shell 1 built in the casing A, a fan-end tube 2 at the outlet end, and a muffler tube shell 3 at the inlet end; wherein, 1 main The silencing tube shell 1 is a hollow cylindrical structure with both ends open, and the air outlet end silencer tube shell 2 and the air inlet end silencer tube shell 3 are both open and hollow truncated-shaped structures at both ends, and the air outlet end silencer tube The air inlet end of the shell 2 is docked with the air outlet port of the main silencing tube shell 1, and the air outlet end is sleeved in the air outlet port of the casing A, and the air inlet end of the air outlet end of the silencer tube shell 3 and the main silencer tube shell The air inlet port of the air inlet port and the air outlet end are sleeved in the air inlet port of the casing A, and on the side wall of the main silencer casing 1, the side wall of the air outlet tube 2 on the air outlet end, and the air inlet end. a plurality of silencing holes C are circumferentially opened on the side wall of the silencing tube shell 3;

a fan assembly D mainly composed of a fan motor and a fan impeller, and the fan assembly D is installed in the main muffler casing 1;

as well as

A sound absorbing sleeve E is disposed between the casing A and the muffler cover B and is simultaneously wrapped on the outer wall of the main muffler casing 1, the outlet end silencer casing 2 and the inlet end muffler casing 3.

In this way, the entire fan provides a fixed installation space for the fan assembly D by using the main muffler tube casing 1 , and a muffling barrier is formed on the periphery of the fan assembly D by cooperating with the air inlet end and the air outlet end of the fan assembly. Reuse the action of the muffler hole C and the sound absorbing sleeve E to maximize the noise absorption; The fan body has a good mute effect to meet the actual low noise requirements of the construction site or installation environment.

In order to facilitate rapid assembly, disassembly and component replacement of the components of the fan, a plurality of button holes F are circumferentially opened on the side wall of the air inlet port of the main muffler tube 1 and the side wall of the air outlet port. Correspondingly, a plurality of buckles G are disposed on the outer side of the side wall of the air-sending tube casing 2 and the outer side of the side wall of the air-sucking tube casing 3, and the buckles G are aligned in the card holes F.

As a preferred solution, the sound absorbing sleeve E of the embodiment can be selected according to a specific situation, that is, only a material having a sound absorbing function (such as glass wool, industrial felt, etc.) can be used, and the sound absorbing sleeve E of the embodiment is used. It is preferably made of an industrial felt roll.

In order to maximize the structure of the entire fan, in order to facilitate the construction and installation of the fan and the assembly or disassembly of the fan, the casing A of the present embodiment includes a main bearing shell 4 sleeved on the sound absorbing sleeve E, and an air inlet port sleeved on the main casing 4 The air inlet end connecting pipe 5 and the air outlet end connecting pipe 6 which is sleeved in the air outlet port of the main pipe casing 4; wherein the air inlet end of the air blowing end muffling pipe casing 3 is threaded to the air inlet end connecting pipe 5, the outlet end of the air outlet silencer casing 2 is threaded into the outlet end connection pipe 6.

In order to enhance the structural stability of the fan itself and strengthen the structural strength between the connecting members, at least one of the outer side of the side wall of the air inlet end connecting pipe 5 and the outer side of the air outlet end connecting pipe 6 is formed with at least one main body shell 4 The reinforcing arm H abuts against the outer surface of the side wall. In this way, the reinforcing arm H and the main tube 5 can be further locked by hardware such as a lock screw, thereby effectively enhancing the structural strength of the entire fan and reducing the vibration amplitude of the fan itself.

In order to further enhance the convenience of on-site installation of the fan, the position outside the side wall of the inlet end connecting pipe 5 and adjacent to the main pipe casing 4 and the outer side of the side wall of the outlet end connecting pipe 6 and adjacent to the main pipe casing 4 Both are provided with a strap K. After the fan is connected to the external ventilation duct, the fan and the ventilation duct can be further bound and strengthened by the strap K.

The above description is only a preferred embodiment of the present invention, and thus does not limit the scope of the patent of the present invention, and the equivalent structure or equivalent process made by using the specification and the drawings of the present invention. Transformations, or direct or indirect use in other related technical fields, are included in the scope of patent protection of the present invention.

Claims

A high-quiet duct fan characterized in that it includes

a casing;

a muffler cover comprising a main muffling tube shell built in the casing, an air outlet silencer tube shell and an air inlet end silencing tube shell, the main silencing tube shell being open at both ends and hollow cylindrical The structure body, the air outlet end silencer tube shell and the air inlet end silencer tube shell are both open and hollow truncated-shaped structures at both ends, and the air inlet end of the air outlet end silencer tube shell and the main silencer tube shell The air port is docked and the air outlet end is sleeved in the air outlet port of the casing, and the air inlet end of the air inlet end of the air duct is docked with the air inlet port of the main silencer tube, and the air outlet end is sleeved to the casing. In the air inlet port, a plurality of silencing holes are circumferentially opened on the side wall of the main silencing tube shell, the side wall of the air outlet tube of the air outlet end, and the side wall of the air outlet tube of the air inlet end;

a fan assembly, the fan assembly is installed in a main silencer tube;

as well as

a sound absorbing sleeve is disposed between the casing and the muffler cover and is simultaneously wrapped on the outer wall of the main muffler tube shell, the outlet end muffler tube shell and the air inlet end muffler tube shell.
A high-quiet duct fan according to claim 1, wherein a plurality of button holes are circumferentially opened on the side wall of the air inlet port of the main silencing tube shell and the side wall of the air outlet port. A plurality of buckles are disposed on an outer side of the side wall of the air outlet end of the air outlet end and a side wall of the sound dissipation tube shell of the air inlet end, and the buckle protrusions are engaged in the card hole.
A high-quiet duct fan according to claim 1, wherein said sound absorbing sleeve is formed by wrapping a felt.
A high-quiet duct fan according to any one of claims 1 to 3, wherein the casing comprises a main pipe sleeve sleeved on the sound absorbing sleeve, and is sleeved in the air inlet port of the main pipe casing. The air inlet end connecting pipe and the air outlet end connecting pipe which is sleeved in the air outlet port of the main pipe shell, the air inlet end of the air inlet end muffling pipe shell is threaded into the air inlet end connecting pipe, and the air outlet end The outlet end of the silencer tube is threaded into the outlet end of the outlet.
A high-quiet ducted fan according to claim 4, wherein at least one side wall of the side wall of the air inlet end connecting pipe and the outer side wall of the air outlet end connecting pipe are formed with at least one side wall of the main pipe A reinforcing arm that abuts the outer surface.
A high-quiet duct fan according to claim 5, wherein said air inlet end is outside the side wall of the connecting pipe and adjacent to the main pipe shell, and outside the side wall of the air outlet end connecting pipe and the main pipe A strap is provided at a position adjacent to the shell.