Fan pipeline for reducing wind resistance

Abstract

The utility model discloses a fan pipeline capable of reducing wind resistance, which relates to the technical field of fans, and comprises a volute, an air inlet, an air outlet, an air inlet pipe and an air outlet pipe, the air outlet pipe is arranged on one side of the volute, the air outlet pipe is provided with an air outlet channel communicated with the air inlet, the two sides of the air outlet pipe are each provided with an air outlet communicated with the air outlet channel, and the two air outlets are oppositely arranged; and the flow guide parts are arranged in the air outlet channel, each air outlet corresponds to one flow guide part, each flow guide part is provided with a first end and a second end which are opposite, the first ends are arranged on the sides, away from the volute, of the air outlets, the second ends obliquely extend in the direction close to the volute, and the second ends of the two flow guide parts are connected. According to the technical scheme, the air resistance of the air outlet channel is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to fan technical field, especially a fan pipeline that reduces wind resistance. BACKGROUND

[0002] In various ventilation systems, the fan is an indispensable component, and its main function is to provide air flow to achieve air circulation and ventilation.

[0003] The traditional fan pipeline usually includes a volute and an air outlet pipe, and the air flow generated by the rotation of the blades in the volute enters the air outlet pipe and is directly blown out from the end of the air outlet pipe. A fan has two air outlets on both sides of the air outlet pipe, and the air flow in the air outlet pipe is blown out from the air outlets on both sides.

[0004] However, the air flow in the air outlet pipe collides with the end of the air outlet pipe to generate turbulence and vortex, resulting in the problem of large wind resistance of the fan. INVENTION CONTENTS

[0005] The main purpose of the utility model is to provide a fan pipeline that reduces wind resistance, aiming to reduce the wind resistance of the air outlet channel.

[0006] To achieve the above purpose, the fan pipeline that reduces wind resistance provided by the utility model comprises:

[0007] a volute provided with an air inlet;

[0008] an air outlet pipe provided on one side of the volute, the air outlet pipe being provided with an air outlet channel communicated with the air inlet, the air outlet pipe being provided with one air outlet communicated with the air outlet channel on each side, and the two air outlets being oppositely arranged;

[0009] a flow guide part provided inside the air outlet channel, one flow guide part being provided corresponding to each air outlet, each flow guide part having opposite first and second ends, the first end being provided on the side of the air outlet away from the volute, the second end being inclinedly extended towards the volute, and the second ends of the two flow guide parts being connected.

[0010] In an embodiment, the flow guide part is arc-shaped.

[0011] In an embodiment, the second ends of the two flow guide parts are connected to form a flow dividing part, and the width of the flow dividing part decreases from the end close to the volute to the end away from the volute.

[0012] In an embodiment, the flow dividing part is provided between the air outlet and the volute.

[0013] In an embodiment, the air outlet has a guide inner wall away from the volute, the guide inner wall is arranged adjacent to the first end of the guide portion, and the guide inner wall is arc-shaped.

[0014] In an embodiment, the axis of the air outlet pipe is tangent to the circumference of the volute.

[0015] In an embodiment, the fan pipeline further comprises a guide member, one end of the guide member is detachably connected to the end of the air outlet pipe away from the volute to block the end of the air outlet passage away from the volute, and the other end of the guide member extends into the interior of the air outlet passage and is provided with the guide portion.

[0016] In an embodiment, the outer wall of the guide member is provided with a positioning groove, the extension direction of the positioning groove is the same as the extension direction of the air outlet pipe, the inner wall of the air outlet passage is provided with a positioning protrusion corresponding to the positioning groove, and the positioning protrusion is inserted into the positioning groove to block the movement of the guide member in the interior of the air outlet passage.

[0017] In an embodiment, the fan pipeline further comprises a sealing member arranged between the outer wall of the guide member and the inner wall of the air outlet passage to seal the end of the air outlet passage away from the volute.

[0018] In an embodiment, the guide member is hollow, and at least one holding hole is arranged at the end of the guide member outside the air outlet passage.

[0019] The fan pipeline in the technical scheme of the utility model comprises a volute, an air outlet pipe and a guide portion, the volute is provided with an air inlet, the air outlet pipe is connected to one side of the volute, the air outlet pipe is internally provided with an air outlet passage, and the air outlet passage is in communication with the air inlet of the volute. Two air outlets are further arranged on the air outlet pipe, the two air outlets are oppositely arranged, i.e. symmetrically distributed on both sides of the air outlet pipe, the guide portion is arranged in the interior of the air outlet passage, and one guide portion is arranged corresponding to each air outlet. The guide portion has a first end and a second end, the first end is located on the side of the air outlet away from the volute, the second end extends in a direction inclined to the volute, and the second ends of the two guide portions are connected to each other. Air enters the volute through the air inlet and then leaves through the two air outlets via the air outlet passage, in this process, the airflow is divided into two parts along the guide portion arranged in an inclined manner, the turbulence and vortex of the airflow in the air outlet passage are reduced, the air resistance in the air outlet passage is reduced, and the efficiency of the fan is improved. On the other hand, since the two air outlets are oppositely arranged and each is provided with a guide portion, the airflow flowing out of the two air outlets is more uniform, and the problem of uneven flow of the two air outlets is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description, obviously, the drawings described in the following are only some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to the structures shown in these drawings without creative labor.

[0021] Figure 1 A cross-sectional view of an embodiment of the fan pipeline provided by the present application for reducing wind resistance is provided.

[0022] Figure 2 For Figure 1 A local enlarged view at A in the middle.

[0023] Figure 3 A structure schematic view of an embodiment of the fan pipeline provided by the present application for reducing wind resistance is provided.

[0024] Figure 4 A partial structure schematic view of the fan pipeline provided by the present application for reducing wind resistance is provided.

[0025] Figure 5 A structure schematic view of the flow guide provided by the present application for reducing wind resistance of the fan pipeline is provided.

[0026] Explanation of the drawing reference numerals:

[0027] 100, volute; 101, air inlet;

[0028] 200, air outlet pipe; 201, air outlet passage; 202, air outlet; 203, flow guide inner wall; 204, positioning protrusion;

[0029] 300, flow guide; 301, flow guide part; 302, flow distribution part; 303, positioning groove; 304, holding hole;

[0030] 400, sealing member.

[0031] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0033] It should be noted that if the embodiment of the utility model has directionality indication (such as up, down, left, right, front, back, etc.), the directionality indication is only used to explain the relative position relationship, movement condition, etc. between components in a certain posture, if the certain posture changes, the directionality indication also changes accordingly.

[0034] In the utility model, unless otherwise expressly specified and limited, the terms "connection", "fixing" and the like should be understood broadly, for example, "fixing" can be fixed connection, or detachable connection, or integrated; "connection" can be mechanical connection, or electrical connection, can be direct connection, or indirect connection through intermediate medium, can be internal communication of two elements or interaction relationship of two elements. Unless otherwise expressly limited, the above terms in the utility model can be understood according to the specific circumstances by those skilled in the art.

[0035] In addition, if the embodiment of the utility model has "first", "second" and the like description, the "first", "second" and the like description is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can be explicitly or implicitly included at least one feature. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes, for example, "A and / or B" includes A scheme, or B scheme, or A and B simultaneously satisfy the scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on that the ordinary skilled in the art can realize, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0036] The utility model provides a fan pipeline of reducing wind resistance.

[0037] Please refer to Figures 1 to 3 , Figure 1 The utility model provides a fan pipeline of reducing wind resistance one embodiment's section view, Figure 2 For Figure 1 The utility model provides a fan pipeline of reducing wind resistance one embodiment's structure schematic diagram. Figure 3

[0038] In the utility model one embodiment, the fan pipeline of reducing wind resistance includes:

[0039] The volute 100 is equipped with the air inlet 101;

[0040] ​The air outlet pipe 200 is arranged at one side of the volute 100, and the air outlet pipe 200 is provided with an air outlet channel 201 communicated with the air inlet 101.

[0041] The flow guide part 301 is arranged in the air outlet channel 201, and one flow guide part 301 is arranged corresponding to each air outlet 202, and each flow guide part 301 has opposite first and second ends, the first end is arranged at the side of the air outlet 202 away from the volute 100, and the second end extends in a direction close to the volute 100, and the second ends of the two flow guide parts 301 are connected.

[0042] The fan pipeline in the technical scheme of the utility model includes the volute 100, the air outlet pipe 200 and the flow guide part 301, the volute 100 is provided with the air inlet 101, the air outlet pipe 200 is connected at one side of the volute 100, and the air outlet pipe 200 is provided with the air outlet channel 201, and the air outlet channel 201 is communicated with the air inlet 101 of the volute 100. The air outlet pipe 200 is also provided with two air outlets 202, and the two air outlets 202 are oppositely arranged, that is, symmetrically distributed at the two sides of the air outlet pipe 200, and the flow guide part 301 is arranged in the air outlet channel 201, and one flow guide part 301 is arranged corresponding to each air outlet 202. The flow guide part 301 has the first and second ends, the first end is located at the side of the air outlet 202 away from the volute 100, and the second end extends in a direction close to the volute 100, and the second ends of the two flow guide parts 301 are connected. Air enters the volute 100 through the air inlet 101, and then leaves through the two air outlets in the air outlet channel 201, in the process, the airflow is divided into two parts along the inclined flow guide part 301, the turbulence and vortex of the airflow in the air outlet channel 201 are reduced, the air resistance in the air outlet channel 201 is reduced, and the fan efficiency is improved. On the other hand, since the two air outlets 202 are oppositely arranged and each is provided with a flow guide part 301, the airflow flowing out of the two air outlets 202 is more uniform, and the problem of uneven flow of the two air outlets 202 is reduced.

[0043] In an embodiment, the flow guide part 301 is arc-shaped.

[0044] Referring to Figure 1 and Figure 5In the embodiment of the utility model, the flow guide part 301 is arc-shaped, specifically, the flow guide part 301 is inclined and curved from the first end located at the air outlet 202 to the direction close to the volute 100, and finally connected to the second end of another flow guide part 301. The arc-shaped flow guide part 301 can reduce the obstruction and impact of itself to the airflow, help the airflow to pass through the air outlet channel 201 smoothly, further reduce the turbulence and vortex of the airflow in the air outlet channel 201, thereby further reduce the wind resistance and improve the efficiency of the fan. In addition, the smooth flow of the airflow reduces the friction and impact of the airflow with the flow guide part 301 and the inner wall of the air outlet pipe 200, and reduces the noise.

[0045] In an embodiment, the second ends of the two flow guide parts 301 are connected to form a flow dividing part 302, and the width of the flow dividing part 302 gradually decreases from the end close to the volute 100 to the end away from the volute 100.

[0046] Referring to Figure 1 and Figure 5 In the embodiment of the utility model, the second ends of the two flow guide parts 301 are connected to form a flow dividing part 302, and the width of the flow dividing part 302 gradually narrows from the end close to the volute 100 to the end away from the volute 100, that is, the flow dividing part 302 is narrower at the part close to the volute 100 and wider at the part away from the volute 100, forming a sharp corner, reducing the turbulence when the airflow passes through the flow dividing part 302, so that the airflow is more uniform and smooth to be divided into two parts and leaves through the two air outlets 202, reducing the turbulence and vortex when the airflow is divided into two parts, thereby further reducing the wind resistance.

[0047] In an embodiment, the flow dividing part 302 is arranged between the air outlet 202 and the volute 100.

[0048] Referring to Figure 1 In the embodiment of the utility model, the flow dividing part 302 is located between the air outlet 202 and the volute 100, so that the airflow is divided into two parts by the flow dividing part 302 after leaving the volute 100 and before reaching the air outlet 202, and then leaves through the two air outlets 202, ensuring that the airflow is evenly divided before reaching the air outlet 202. If the flow dividing part 302 is long and extends to below the volute 100, the airflow will not only collide with the flow dividing part 302 at the sharp corner of the flow dividing part 302, but also collide with the flow dividing part 302 from above the flow dividing part 302, which is easy to cause turbulence and increase the wind resistance; if the flow guide part 301 is short and the flow dividing part 302 is located between the two air outlets 202, the airflow will not only leave through the air outlet 202, but also be divided at the flow dividing part 302, which is easy to cause turbulence and vortex, leading to increased wind resistance, and the flow of the airflow leaving from the two air outlets 202 is not uniform.

[0049] In an embodiment, the air outlet 202 has a guide inner wall 203 away from the volute 100, the guide inner wall 203 is arranged adjacent to the first end of the guide part 301, and the guide inner wall 203 is arc-shaped.

[0050] With reference to Figure 2 In the embodiment of the utility model, the air outlet 202 has a guide inner wall 203, the guide inner wall 203 is located at the inside of the air outlet 202 and away from the volute 100, the guide inner wall 203 is arc-shaped and is arranged adjacent to the first end of the guide part 301, so that the guide inner wall 203 and the guide part 301 form a continuous airflow guiding structure, thereby helping to guide the airflow to pass through the air outlet 202 smoothly, reducing the turbulence and vortex of the airflow when passing through the air outlet 202, and thereby reducing the wind resistance at the air outlet 202.

[0051] In an embodiment, the axis of the air outlet pipe 200 is tangentially arranged with the circumference of the volute 100.

[0052] In the embodiment of the utility model, the axis of the air outlet pipe 200 is tangentially arranged with the circumference of the volute 100, which helps the airflow to flow smoothly from the volute 100 into the air outlet pipe 200, reduces the friction and turbulence of the airflow in the process of entering the air outlet pipe 200 from the volute 100, and thereby further reduces the wind resistance and improves the efficiency of the fan.

[0053] In an embodiment, the fan pipeline further comprises a guide member 300, one end of the guide member 300 is detachably connected with the end of the air outlet pipe 200 away from the volute 100 to block the end of the air outlet passage 201 away from the volute 100, and the other end of the guide member 300 extends into the inside of the air outlet passage 201 and is provided with a guide part 301.

[0054] With reference to Figure 1 And Figure 5 In the embodiment of the utility model, the fan pipeline further comprises a guide member 300, the guide part 301 is arranged on the guide member 300, and the guide member 300 is connected with the air outlet pipe 200 by clamping, screw locking or the like. By inserting the guide member 300 into the air outlet passage 201 and fixedly connecting with the air outlet pipe 200, the guide part 301 is fixed in the inside of the air outlet passage 201, which reduces the difficulty of arranging the guide part 301 in the inside of the air outlet passage 201, and thereby reduces the manufacturing difficulty of the fan pipeline.

[0055] In an embodiment, the outer wall of the guide member 300 is provided with a positioning groove 303, the extension direction of the positioning groove 303 is the same as the extension direction of the air outlet pipe 200, the inner wall of the air outlet passage 201 is provided with a positioning protrusion 204 corresponding to the positioning groove 303, and the positioning protrusion 204 is inserted into the positioning groove 303 to block the movement of the guide member 300 in the inside of the air outlet passage 201.

[0056] With reference toFigure 4 and Figure 5 In the embodiment of the utility model, the outer wall of the flow guide 300 is provided with a positioning groove 303, and the inner wall of the air outlet channel 201 is provided with a positioning protrusion 204 corresponding to the positioning groove 303 on the flow guide 300, when the flow guide 300 is inserted into the air outlet pipe 200, the positioning protrusion 204 of the inner wall of the air outlet channel 201 is inserted into the positioning groove 303 of the flow guide 300, thereby blocking the movement of the flow guide 300 inside the air outlet channel 201, through the cooperation of the positioning groove 303 and the protrusion, the accurate positioning of the flow guide 300 inside the air outlet channel 201 can be ensured, and the flow guide 300 is not displaced due to vibration or other factors, the stable flow guide 300 helps to reduce the interference of airflow inside the air outlet channel 201, and improve the uniformity of airflow divided into two parts by the flow dividing part 302.

[0057] In an embodiment, the fan pipeline further comprises a sealing piece 400, which is arranged between the outer wall of the flow guide 300 and the inner wall of the air outlet channel 201, so as to seal one end of the air outlet channel 201 away from the volute 100.

[0058] Referring to Figure 1 In the embodiment of the utility model, the fan pipeline further comprises a sealing piece 400 arranged between the outer wall of the flow guide 300 and the inner wall of the air outlet channel 201, so as to prevent the leakage of airflow from the gap between the flow guide 300 and the air outlet channel 201, the sealing piece 400 is made of elastic material, such as rubber, silica gel and the like, so as to ensure that the airflow is discharged only through the air outlet 202, and ensure that the fan can provide stable airflow, thereby improving the efficiency and performance of the fan.

[0059] In an embodiment, the flow guide 300 is hollow, and at least one holding hole 304 is arranged at one end of the flow guide 300 outside the air outlet channel 201.

[0060] Referring to Figure 1 In the embodiment of the utility model, the flow guide 300 is hollow, so as to reduce the overall weight of the flow guide 300 and reduce the manufacturing material cost. At least one holding hole 304 is arranged at one end of the flow guide 300 outside the air outlet channel 201, and in the embodiment, two holding holes 304 are arranged, so that the user can hold the flow guide 300, thereby facilitating the disassembly and assembly of the flow guide 300.

[0061] The above description is only an exemplary embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation made by referring to the utility model specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection range of the utility model.

Claims

1. A wind turbine conduit having reduced wind resistance, characterized in that, The fan pipeline comprises: A volute provided with an air inlet; An air outlet pipe provided on one side of the volute, the air outlet pipe being provided with an air outlet channel in communication with the air inlet, and two air outlets in communication with the air outlet channel being respectively provided on two sides of the air outlet pipe, the two air outlets being oppositely arranged; A flow guide part provided inside the air outlet channel, one flow guide part being provided corresponding to each air outlet, each flow guide part having opposite first and second ends, the first end being provided on the side of the air outlet away from the volute, and the second end being inclinedly extended towards the volute.

2. The reduced windage fan duct of claim 1, wherein, The flow guide part is arc-shaped.

3. The reduced drag fan duct of claim 1, wherein, The second ends of the two flow guide parts are connected to form a flow distribution part, the width of the flow distribution part decreasing from the end close to the volute to the end away from the volute.

4. The reduced windage fan duct of claim 3, wherein, The flow distribution part is provided between the air outlet and the volute.

5. The reduced drag fan duct of claim 1, wherein, The air outlet has a flow guide inner wall away from the volute, the flow guide inner wall being provided adjacent to the first end of the flow guide part, and the flow guide inner wall being arc-shaped.

6. The reduced drag fan duct of claim 1, wherein, The axis of the air outlet pipe is tangent to the circumference of the volute.

7. The reduced drag fan duct of claim 1, wherein, The fan pipeline further comprises a flow guide member, one end of the flow guide member being detachably connected to the end of the air outlet pipe away from the volute to block the end of the air outlet channel away from the volute, and the other end of the flow guide member extending into the air outlet channel and being provided with the flow guide part.

8. The reduced drag fan duct of claim 7, wherein, An outer wall of the flow guide member is provided with a positioning groove, the extension direction of the positioning groove being the same as the extension direction of the air outlet pipe, an inner wall of the air outlet channel is provided with a positioning protrusion corresponding to the positioning groove, and the positioning protrusion is inserted into the positioning groove to block the flow guide member from moving inside the air outlet channel.

9. The reduced drag fan duct of claim 7, wherein, The fan pipeline further comprises a sealing member, the sealing member being provided between the outer wall of the flow guide member and the inner wall of the air outlet channel to seal the end of the air outlet channel away from the volute.

10. The reduced drag fan duct of claim 9, wherein, The flow guide member is hollow, and at least one holding hole is provided at the end of the flow guide member outside the air outlet channel.

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