CN212615465U

CN212615465U - Vertical circulation fan

Info

Publication number: CN212615465U
Application number: CN202020625564.5U
Authority: CN
Inventors: 李军彬
Original assignee: Shandong Yuyun Sanhe Machinery Co ltd
Current assignee: Shandong Yuyun Sanhe Machinery Co ltd
Priority date: 2020-04-23
Filing date: 2020-04-23
Publication date: 2021-02-26
Anticipated expiration: 2030-04-23

Abstract

The utility model relates to the technical field of circulating fans, and provides a vertical circulating fan, which comprises an impeller and a wind scooper; a plurality of fan blades are arranged on the impeller, and the air guide cover is provided with an arc-shaped bottom surface facing to the negative pressure surface of the fan blades; the wind scooper is arranged on the upper part of the impeller; the included angle between the tangent line of any point at the tail end of the arc-shaped bottom surface of the wind scooper and the horizontal plane is 0-40 degrees; a spoiler is fixedly arranged on the air guide cover. Therefore, the utility model discloses a suspend in midair the motor of installation and drive the impeller rotation, the negative pressure face of the flabellum of ring setting on the impeller upwards corresponds with the arc bottom surface of wind scooper, and the air of below is inhaled by the flabellum, strikes the arc bottom surface of wind scooper, through the guide of wind scooper, downward diffusion again. Circulation can be formed between the upper layer and the lower layer in the closed space, and the difference of the temperature, the humidity and the air quality in the closed space is balanced; in winter, the air with higher temperature at the upper layer of the closed space can be used for increasing the temperature of the air at the lower layer, so that the heating cost is reduced, and the energy conservation and emission reduction are realized.

Description

Vertical circulation fan

Technical Field

The utility model relates to a circulating fan technical field especially relates to a perpendicular circulating fan.

Background

The circulating fan is widely used for ventilation and cooling of enclosed spaces such as warehouses, greenhouses and drying rooms, and can convey air flow with large air volume and small static pressure in the enclosed spaces such as warehouses, greenhouses and drying rooms. The common circulating fan is transversely arranged, so that the air in the closed space forms laminar flow along the horizontal direction.

With the rise and demand of land resources, greenhouse technology develops towards the direction of three-dimensional planting and multi-layer cage culture, drying rooms, storage and the like are built higher, and the transverse circulation fan cannot well meet the market requirements.

For example, the technology of multi-layer cage culture is widely applied, the culture rate per unit area is far higher than that of flat culture, the monitoring and the management are convenient, and the labor intensity of workers can be reduced. However, the temperature difference between the upper and lower cages cannot be balanced by the transverse circulation fan, and when the temperature difference between the inside and the outside of the shed is large in winter and summer, additional equipment is needed for stabilizing the temperature of the shed, so that the cost is high.

In the process of breeding, the temperature of lower floor's cage generally is less than the upper strata, and the difference in temperature can reach more than 6 ℃, and great difference in temperature is unfavorable for the staff to the management and control of the inside temperature of cowshed, and the air quality of lower floor's cage is poor than the upper strata, and CO₂The concentration, the relative humidity and the like of the water are higher than those of the upper layer, which is not beneficial to the growth and development of the livestock and poultry in the shed.

In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned drawbacks, an object of the present invention is to provide a vertical circulation fan, which drives an impeller to rotate by a motor suspended in a suspension manner, wherein a negative pressure surface of a fan blade annularly disposed on the impeller faces upward to correspond to an arc bottom surface of an air guiding cover, air below the fan blade is sucked by the fan blade, and the air collides with the arc bottom surface of the air guiding cover and is guided by the air guiding cover to diffuse downward. Circulation can be formed between the upper layer and the lower layer in the closed space, and the difference of the temperature, the humidity and the air quality in the closed space is balanced; in winter, the air with higher temperature at the upper layer can be used for increasing the temperature of the air at the lower layer, so that the heating cost is reduced, and the energy conservation and emission reduction are realized.

In order to achieve the above object, the present invention provides a vertical circulation fan, comprising an impeller and a wind scooper; the impeller is annularly provided with a plurality of fan blades, and the air guide cover is provided with an arc-shaped bottom surface facing to the negative pressure surface of the fan blades.

According to the utility model discloses a perpendicular circulation fan, the wind scooper sets up the upper portion at the impeller.

According to the utility model discloses a perpendicular circulation fan, the tangent line of the terminal arbitrary point of arc bottom surface of wind scooper is alpha with the contained angle of horizontal plane, and alpha's scope: 0 to 40 degrees.

According to the utility model discloses a perpendicular circulation fan, the spoiler of being no less than 4 scattered stationary forms is evenly established to the wind-guiding cover ring.

According to the utility model discloses a vertical circulation fan, the quantity of spoiler is 4-8.

According to the utility model discloses a vertical circulation fan, the quantity of flabellum is 4-9 pieces.

According to the vertical circulation fan of the utility model, the diameter of the wind scooper is 1.5-2 times of the wind sweeping diameter of the fan blades.

According to the utility model discloses a perpendicular circulation fan, the suit motor in the middle of the wind scooper, the hanging point of a plurality of symmetries is equipped with on the motor, and the mountain-climbing is detained in the hanging point connection.

According to the utility model discloses a perpendicular circulation fan, the motor passes through the climbing buckle and connects on iron chain or the support under the shed roof, and the perpendicular distance of wind scooper and shed roof is 0.5-1.3 meters.

According to the utility model discloses a perpendicular circulation fan, the rigid coupling is used for the fan protecting wire net of protection flabellum on the motor, and the fan protecting wire net is circular or hexagon.

The utility model discloses a suspend in midair the motor of installation and drive the impeller rotation, the negative pressure face of the flabellum of ring setting up on the impeller upwards corresponds with the arc bottom surface of wind scooper, and the air of below is inhaled by the flabellum, strikes the arc bottom surface of wind scooper, through the guide of wind scooper, downward diffusion again. Circulation can be formed between the upper layer and the lower layer of the closed space, and the difference of the temperature, the humidity and the air quality in the closed space is balanced; in winter, the air with higher temperature at the upper layer can be used for increasing the temperature of the air at the lower layer, so that the heating cost is reduced, and the energy conservation and emission reduction are realized.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is a top view of the present invention;

fig. 3 is a bottom view of the present invention;

fig. 4 is a schematic structural view of the wind scooper of the present invention;

FIG. 5 is a cross-sectional view of section A-A of the wind scooper of FIG. 4;

fig. 6 is a schematic view of the working state of the present invention;

in the figure, 1-impeller, 11-blade, 2-motor, 21-rotating shaft, 22-protective net bracket, 23-lifting point, 24-climbing buckle, 3-wind scooper, 31-spoiler, 4-fan protective net.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in 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 invention and are not intended to limit the invention.

Referring to fig. 1, the utility model provides a vertical circulation fan, which comprises an impeller 1 and a wind scooper 3; a plurality of fan blades 11 are arranged on the impeller 1, and the air guide cover 3 is provided with an arc-shaped bottom surface facing to the negative pressure surface of the fan blades 11; the impeller 1 and the wind scooper 3 are arranged longitudinally. The impeller 1 is arranged on a rotating shaft 21 of the motor 2, and the motor 2 provides rotating power for the impeller 1; the bottom surface of the wind scooper 3 is arc-shaped and faces the negative pressure surface of the fan blade 11, the wind scooper 3 is sleeved on the upper part of the motor 2, air brought by the fan blade 11 impinges on the wind scooper 3 and is guided by the wind scooper 3 to diffuse downwards.

The fan blades 11 are inclined upwards, the fan blades 11 which are inclined upwards can form a negative pressure surface above the fan blades 11, air below the fan blades 11 is driven to move upwards, negative pressure is formed above the fan blades continuously along with the rotation of the impeller 1, and the air flows from bottom to top.

Preferably, the motor 2 is fixedly connected with a fan protecting net 4 for protecting the fan blade 11, the fan protecting net 4 is a grid-shaped protecting cover made of metal or plastic, so that sundries brought up by cutting the fan blade 11 during working can be avoided, and the sundries are prevented from contacting the fan blade 11 and being cut or damaging the fan blade 11.

More preferably, the fan protecting net 4 is circular or hexagonal. The fan protecting net 4 is fixed through the protecting net bracket 22 arranged on the motor 2, and the circular fan protecting net 4 is adopted, so that the material is saved, the process is simple, and the production is facilitated; the hexagonal fan guard net 4 is attractive and practical.

Referring to fig. 2, the motor 2 is suspended below the ceiling through an iron chain or a support, a plurality of symmetrical hanging points 23 are arranged on the motor 2, the iron chain or the support can be hung, and the number of the hanging points 23 is not less than 4. Preferably, the climbing buckle 24 that conveniently articulates is set up in hoisting point 23 department and can be improved the utility model discloses the convenience of dismouting, the utility model discloses be often used in the air apart from the ground take the altitude, but the climbing buckle 23 through quick assembly disassembly can be quick articulate or demolish.

Referring to fig. 3, the diameter of the wind scooper 3 is 1.5-2 times of the wind sweeping diameter of the fan blade 11. The utility modelThe novel aim at realizes the air flow between the upper and lower cages, so that not only the air at the lower part of the shed needs to be sucked to the upper part of the shed, but also the air at the upper part of the shed is induced to the lower part of the shed. Accordingly, the diameter of the wind scooper 3

Is larger than the wind sweeping diameter of the fan blade 11

Big, the utility model discloses with the diameter of wind scooper 3

And the wind sweeping diameter of the fan blade 11

The ratio of the air flow to the air flow is selected to be 1.5-2, when the ratio of the air flow to the air flow is less than 1.5, most of the air flow from bottom to top directly passes over the air guide cover 3, the air hardly forms downward return flow after impacting the air guide cover 3, and the convection effect is poor; when the ratio of the air to the air is larger than 2, the return flow velocity of the air after impacting the air guide cover 3 is low, and the convection efficiency is influenced.

Preferably, the number of the fan blades is 4-9. Tests show that under the condition that the rotating speed of the impeller 1 is not changed, the number of the fan blades 11 is increased, and the air volume can be increased; on the premise of obtaining the same air volume, the fan noise can be reduced by reducing the rotating speed of the impeller 1. Of course, the larger the number of fan blades 11, the larger the load on motor 2. Consider factors such as the height of cowshed, service environment, start-up frequency, the utility model discloses in, select the number of flabellum 11 to be 4-9, can produce comparatively ideal convection current effect under the condition of not additionally increasing 2 powers of motor.

Furthermore, the number of the fan blades 11 of the present invention is 8. For most of small and medium-sized barns, the number of the fan blades 11 is selected to be 8 by considering the height of the barns, the temperature difference between the upper cage and the lower cage, the breeding number in unit area, the starting frequency and other factors, so that better using effect and economic benefit can be obtained.

Referring to fig. 4 and 5, the arc-shaped bottom surface of the wind scooper 3 facing the fan blade 11 is shown in the figure, and the wind scooper 3 is used for guiding the air brought by the fan blade 11 to flow downwards and outwards. The included angle between the tangent line of any point at the tail end of the arc-shaped bottom surface of the air guiding cover 3 and the horizontal plane is alpha, and the angle of the outward guided flow of the air flow is influenced by alpha. The utility model discloses select the terminal tangent line of arbitrary a little of arc bottom surface of wind scooper 3 and the scope of contained angle alpha of horizontal plane: 0-40 degrees, can obtain more ideal convection effect and larger working area.

Tests show that when alpha is 0, the air guide cover 3 guides the air flow to diffuse outwards along the arc-shaped bottom surface, and most of the air flow moves transversely along the circumference; the inventors have conducted a plurality of experiments on the value of the angle α and found that when α is between 0 and 20 °, the effect of the air flow diffusing outward is stronger than the effect of the downward convection, and the smaller the angle α, the better the effect of the air flow diffusing downward. The inventor also finds that when the angle alpha is larger than 20 degrees, the larger the angle alpha is, the stronger the capability of the arc-shaped bottom surface of the wind scooper 3 for guiding the air flow downwards is, but when the angle alpha is larger than 40 degrees, the air flow guided by the arc-shaped bottom surface of the wind scooper 3 is influenced by the fan blades 11 again, and part of the air flow cannot reach the bottom of the shed, so that the air convection effect is reduced; and the larger alpha is, the smaller the action area of the utility model is.

Preferably, the inventor believes that, when air replacement inside and outside the shed is required, the angle α can be selected between 6 ° and 9 ° by those skilled in the art according to the difference between different shed heights, the number of cultures per unit area, and the like, so that a larger working area can be considered while a better air replacement effect is obtained.

Preferably, the inventor thinks that when the temperature and humidity between the upper and lower cages in the shed need to be balanced, the angle α is selected to be between 32 and 35 degrees according to factors such as different shed heights, the number of breeding in unit area, livestock and poultry products and the like, so that a better air convection effect of the upper and lower layers can be obtained and a larger working area can be simultaneously considered.

More preferably, at least 4 scattering spoilers 31 are uniformly and annularly arranged on the wind scooper 3. The spoilers 31 are uniformly distributed on the arc-shaped bottom surface of the air guide cover 3 and are in a spiral shape with wide root and narrow head. The spoiler 31 can make the air current produce the disturbance when passing through, forms the air current vortex or advances along the spoiler spiral, and the area of sweeping when can increase the air current and return, when the cowshed is shorter, it is right the utility model discloses a working area's increase effect is especially obvious.

Furthermore, the number of the spoilers 31 is 4-8. The larger the number of the spoilers 31, the more remarkable the turbulence generated when the air flow passes through; the smaller the number of spoilers 31, the less vortex of the air flow is generated by the turbulence of the spoilers 31. The number of the spoilers 31 is suitably 4-8 according to different heights of the shed, the types of the livestock and the poultry and the like.

Referring to fig. 6, the working state of the present invention is schematically shown. The motor 2 is suspended below the shed roof, and the vertical distance between the wind scooper 3 and the shed roof is 0.5-1.3 m. When the temperature, humidity and the like between the upper layer and the lower layer of the shed are only required to be balanced, the air at the top of the shed is greatly influenced by the external environment and preferably cannot participate in the air circulation inside the shed, and the vertical distance between the wind scooper 3 and the shed top can be adjusted to be 0.8-1.3 m. When the air quality in the shed is relatively poor, the vertical distance between the wind scooper 3 and the shed roof can be adjusted to be 0.5-0.9m, and the air quality in the shed can be improved by matching with air exchange equipment on the shed roof.

The motor 2 drives the rotating shaft 21 to rotate, the impeller 1 on the rotating shaft 21 rotates along with the rotating shaft, the fan blade 11 extrudes air at the upper part in an oblique upward mode to move in a direction vertical to the surface of the fan blade 11, the air at the upper part of the fan blade 11 is extruded to form negative pressure, the air at the lower part of the fan blade 11 flows into a negative pressure area to form air flow from bottom to top, and the air at the lower part is continuously filled into the negative pressure area at the upper part along with the continuous rotation of the fan blade 11. The air flowing upward from the upper part of the fan blade 11 hits the arc-shaped bottom surface of the air guiding cover 3, the airflow flows along the shape of the air guiding cover 3, and the air is induced by the air guiding cover 3 to flow out along the tangent line of the bowl shape and flow in the downward oblique direction. Therefore, the utility model discloses the during operation, the air of below constantly is guided by flabellum 11 and flows to flabellum 11 top to flow to the oblique below of direction by wind scooper 3, accomplished the inside air flow between the upper and lower floor of shed, air quality, humidity etc. between the upper and lower floor in both can balancing the shed like this, still can utilize the higher air of upper strata temperature to heat the lower floor winter, reduce the heating expense, energy saving and emission reduction.

Of course, those skilled in the art can apply the present invention to other related scenes, for example, when storing grain, vegetables, fruits, etc., the present invention can be used to circulate the medicament, cold air, etc. to each corner in the storage sufficiently and rapidly, avoiding the local overheating and the incomplete killing; in the hot air drying room, the utility model can promote the hot air to rapidly flow between the upper layer and the lower layer in the drying room, thereby improving the drying efficiency; the fan is arranged in the greenhouse to realize the up-and-down circulation of air, so that the air with higher temperature at the top of the greenhouse is driven to flow downwards for recycling, and the heating cost of the greenhouse is effectively reduced.

To sum up, the utility model discloses a suspend in midair the motor of installation and drive the impeller rotation, the negative pressure face of the flabellum of ring setting up on the impeller upwards corresponds with the arc bottom surface of wind scooper, and the air of below is inhaled by the flabellum, strikes the arc bottom surface of wind scooper, through the guide of wind scooper, downward diffusion again. Circulation can be formed between the upper layer and the lower layer in the closed space, and the difference of the temperature, the humidity and the air quality in the closed space is balanced; in winter, the air with higher temperature at the upper layer can be used for increasing the temperature of the air at the lower layer, so that the heating cost is reduced, and the energy conservation and emission reduction are realized.

Naturally, the present invention can be embodied in many other forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be made by one skilled in the art without departing from the spirit or essential attributes thereof, and it is intended that all such changes and modifications be considered as within the scope of the appended claims.

Claims

1. A vertical circulation fan is characterized by comprising an impeller and a wind scooper; the impeller is annularly provided with a plurality of fan blades, and the air guide cover is provided with an arc-shaped bottom surface facing to the negative pressure surface of the fan blades.

2. The vertical circulating fan of claim 1 wherein the wind scooper is disposed on an upper portion of the impeller.

3. The vertical circulating fan of claim 2, wherein an included angle between a tangent line of any point at the tail end of the arc-shaped bottom surface of the wind scooper and a horizontal plane is α, and the range of α is as follows: 0 to 40 degrees.

4. The vertical circulating fan as claimed in claim 3, wherein the wind guide cover is uniformly provided with not less than 4 scattering spoilers.

5. The vertical circulating fan as claimed in claim 4, wherein the number of the spoilers is 4 to 8.

6. The vertical circulation fan of claim 1, wherein the number of the fan blades is 4-9.

7. The vertical circulating fan of any one of claims 1-6, wherein the diameter of the wind scooper is 1.5-2 times the swept diameter of the fan blades.

8. The vertical circulating fan of claim 1, wherein the air guide cover is sleeved with a motor in the middle, a plurality of symmetrical hanging points are arranged on the motor, and the hanging points are connected with the climbing buckles.

9. The vertical circulating fan of claim 8, wherein the motor is connected to an iron chain or a support below the ceiling through a mountain-climbing buckle, and the vertical distance between the wind scooper and the ceiling is 0.5-1.3 m.

10. The vertical circulating fan of claim 8, wherein the motor is fixedly connected with a fan guard net for protecting the fan blades, and the fan guard net is circular or hexagonal.