阅读说明：本技术 一种湿式降尘风机叶轮 (Wet-type dust fall fan wheel ) 是由 闫宣宣 于 2019-10-08 设计创作，主要内容包括：本发明涉及一种湿式降尘风机叶轮,包括轮毂(1),其特征在于：所述轮毂外圆柱面周围均匀分布有叶片(2),所述轮毂和叶片为一体式结构,所述轮毂和叶片材料为铝合金,所述轮毂和叶片的成型方式为压力铸造,本发明具有重量轻,耐腐蚀、结构稳定且紧凑、气动性能好、降尘效率高的优点。(The invention relates to a wet dust-settling fan impeller, which comprises a hub (1) and is characterized in that: the dust-settling device has the advantages of light weight, corrosion resistance, stable and compact structure, good pneumatic performance and high dust-settling efficiency.)

1. The utility model provides a wet-type dust fall fan wheel, includes wheel hub (1), its characterized in that: blades (2) are uniformly distributed on the periphery of the outer cylindrical surface of the hub, the hub and the blades are of an integrated structure, the hub and the blades are made of aluminum alloy, and the hub and the blades are formed by pressure casting.

2. The wet dustfall fan impeller of claim 1, wherein: the hub is of a thin-wall hollow structure and comprises an annular fan blade connecting area (11) and an annular rotating shaft connecting area (12), wherein a central hole (13) is drilled in the rotating shaft connecting area, and a key groove (14) is milled in the rotating shaft connecting area.

3. The wet dustfall fan impeller of claim 1, wherein: the blade is the distortion blade, and the distortion angle is between 5 to 10, and thickness is inhomogeneous, demonstrates middle thick edge thin, and the root is thick, the thin characteristics in top, blade top one side is equipped with ear structure (21), it is excessive that each edge of blade is the circular arc, blade quantity is three extremely above.

Technical Field

The invention relates to the technical field of fans, in particular to a wet dust-settling fan impeller.

Background

In recent years, the industrialization level of China has been greatly developed, but the problem of dust pollution which is increasingly prominent is not ignored. Productive dust formed in the industrial production process can be suspended in the air for a long time, so that the visibility is reduced, extreme weather such as haze and the like is caused, the health of a respiratory system is directly harmed, and the dust can be used as a germ carrier to indirectly cause various diseases. Pneumoconiosis, the most prominent and common occupational disease, is caused by prolonged inhalation of productive dust. Currently, China has become the world with the most pneumoconiosis patients, more than ten million workers contact productive dust, and the method is mainly concentrated in the industries such as cement, coal mine, steel, thermal power generation and building. Effectively improve the construction environment of related workers, reduce the incidence of diseases caused by dust such as pneumoconiosis and the like, and is very slow.

the dustfall technique is classified into a dry type and a wet type depending on whether water is used as a dustfall medium. The core part of the dry dust falling technology is a dust collector which collects dust-containing air flow and carries out dust falling by utilizing the modes of gravity, cyclone, static electricity and the like. Wet dust fall mostly adopts spray dust fall, and the spray dust fall has the advantages of high dust fall efficiency, flexible implementation, relatively low cost and the like, and becomes an important dust control means in a construction site.

The spray dust settling technology utilizes the combination and landing of water mist sprayed out of a nozzle and dust particles suspended in air to play a dust settling role. Common spray dust-settling technologies include magnetized water dust-settling, ultrasonic atomization dust-settling, spray axial flow fan dust-settling, and the like. The spraying axial flow fan utilizes air flow generated by the fan to crush water sprayed out of the nozzle, and the generated fine water mist is blown into dust-containing air to play a role in dust reduction. The performance of dust fall fan directly influences the scope and the efficiency of effective dust removal, and the performance of dust fall fan to a great extent depends on dust fall fan impeller structure, consequently through optimizing axial fan impeller structure, promotes axial fan performance and is crucial to reinforcing dust fall effect.

At present, wet dust-settling fan impellers at home and abroad mostly adopt a radial straight blade form, a radial straight blade wet dust collector has been introduced into China for 10 years, a good effect is achieved in application of multiple industries, but problems still exist in use, the impeller is formed by welding a plurality of cold stamping parts, the problems of dynamic balance and installation positioning are difficult to guarantee, the fan blade with the structure is easy to deform in work and generates noise pollution to surrounding workers, the mechanical life is short, large-particle dust is difficult to capture, and the dust-settling efficiency is low.

Disclosure of Invention

The invention aims to provide a wet dust-settling fan impeller which is made of aluminum alloy, is light in weight, has an integrated structure, is stable in structure and low in assembly cost, is suitable for mass production, and has dust settling efficiency improved by about 60% compared with a radial straight blade impeller.

The invention adopts the following technical scheme for realizing the purpose:

The utility model provides a wet-type dust fall fan wheel, includes wheel hub, its characterized in that: blades are uniformly distributed around the outer cylindrical surface of the hub, the hub and the blades are of an integrated structure, the hub and the blades are made of aluminum alloy, and the hub and the blades are formed by pressure casting;

Preferably, the present invention provides a wet dust-fall fan impeller, comprising: the hub is of a thin-wall hollow structure and comprises an annular fan blade connecting area and an annular rotating shaft connecting area, and a central hole is drilled in the rotating shaft connecting area and a key groove is milled in the rotating shaft connecting area;

Preferably, the present invention provides a wet dust fall fan impeller, comprising: the blade is the distortion blade, and the distortion angle is between 5 to 10, and thickness is inhomogeneous, demonstrates middle thick edge thin, and the root is thick, the thin characteristics in top, blade top one side is equipped with the ear structure, each edge of blade is the circular arc excessive, blade quantity is three extremely more.

Has the advantages that:

compared with the prior art, the invention has the beneficial effects that:

the impeller of the wet dust-settling fan is made of aluminum alloy, so that the wet dust-settling fan is light in weight, corrosion-resistant and good in processing formability; the integrated structure is stable and compact, the assembly cost is low, and the integrated structure is suitable for mass production; the blades are twisted blades, so that the pneumatic performance is good, the energy-saving effect is obvious, and the moisture resistance is good; one side of the blade top is provided with an ear structure, so that the blade top gap between the impeller and the air duct is reduced, the return loss is greatly reduced, and the dust settling efficiency is improved by about 60%.

drawings

FIG. 1 is a schematic structural view of the present invention;

Fig. 2 is a schematic diagram of the three-dimensional structure of the present invention.

Detailed Description

the invention or inventions are further illustrated by the following specific examples.

as shown in fig. 1, a wet dust fall fan wheel, includes wheel hub, its characterized in that: the hub and the blades are of an integrated structure, the hub and the blades are made of aluminum alloy, and the hub and the blades are formed by pressure casting. As shown in figure 2, the hub is of a thin-wall hollow structure, reduces materials and saves cost, and comprises an annular fan blade connecting area and an annular rotating shaft connecting area, wherein a central hole is drilled in the rotating shaft connecting area, a key groove is milled in the rotating shaft connecting area, and the hub is conveniently and fixedly connected with a rotating shaft. The blade is the distortion blade, and the distortion angle is between 5 to 10, and thickness is inhomogeneous, wholly demonstrates middle thick edge thin, and the root is thick, the thin characteristics in top, and pneumatic performance is good, and energy-conserving effect is showing, and blade top one side is equipped with ear structure, and it is excessive that each edge of blade is the circular arc, has reduced the top of a leaf clearance between impeller and the dryer, has greatly reduced return loss, and its dust fall efficiency improves about 60%, and blade quantity can arrange three and more according to actual conditions.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.