Anti-rotational flow structure of air inlet box

Abstract

The utility model relates to an anti-swirling structure of an air inlet box, which belongs to the technical field of burner equipment and comprises an air inlet component, an air outlet component and an air outlet component, the air inlet component is provided with an air passing cavity, and the air inlet component is provided with an air inlet communicated with the air passing cavity; the air outlet assembly is arranged on the air inlet assembly, the air outlet assembly is provided with an air outlet, and the air outlet is communicated with the air passing cavity; the air inlet assembly comprises an air inlet and an air outlet, the air guide plate is arranged on the air inlet assembly, the air guide plate is located between the air inlet and the air outlet, and the air guide plate is used for guiding fluid in the air inlet assembly. According to the air inlet box anti-rotational-flow structure, the air guide plate is located between the air inlet and the air outlet, so that the air guide plate can adjust the distribution and speed of the fluid, it is ensured that the fluid is conveyed more evenly in the air passing cavity, the phenomena of fluid vortex, fluid reverse flow and the like can be avoided or reduced, and the fluid is more stable in the conveying process.

Description

Technical Field

[0001] The utility model relates to the technical field of burner equipment, in particular to an air inlet box anti-swirl flow structure. Background Art

[0002] The air inlet box is a mechanical device that can transport fluids such as wind and gas to the burner so that the flame of the burner can burn normally. However, the existing air inlet box has the following disadvantages during use: after the combustion-supporting air enters the air inlet box, a vortex phenomenon will be generated, and the swirling fluid will affect the subsequent combustion-supporting air to continue to enter the air inlet box, so that the air volume and air pressure of the combustion-supporting air will be unstable during the transportation process of the air inlet box, affecting the flame stability of the burner. Utility Model Content

[0003] Based on this, it is necessary to provide an air inlet box anti-swirl structure to address the problem of unstable air volume and air pressure during fluid transportation in the air inlet box.

[0004] An anti-swirl flow structure for an air inlet box comprises: an air inlet component, the air inlet component is provided with an air passage cavity, the air inlet component is provided with an air inlet connected to the air passage cavity; an air outlet component, the air outlet component is arranged on the air inlet component, the air outlet component is provided with an air outlet, and the air outlet is connected to the air passage cavity; an air guide plate, the air guide plate is arranged on the air inlet component, the air guide plate is located between the air inlet and the air outlet, and the air guide plate is used to guide the fluid in the air inlet component.

[0005] The present application discloses an air inlet box anti-swirl flow structure, which is connected to the air inlet and the air outlet through the air passage cavity, respectively, so that the fluid entering from the air inlet can be transported through the air passage cavity and then output from the air outlet. The air guide plate is located between the air inlet and the air outlet, so that the air guide plate can adjust the distribution and speed of the fluid, ensure that the fluid is transported more evenly in the air passage cavity, and avoid or reduce the phenomenon of fluid vortex, backflow, etc., so that the fluid is more stable during the transportation process, and the transportation of the fluid to the burner will not affect the stability of the flame. In addition, the setting of the air guide plate can improve the overall structural strength of the product.

[0006] In one embodiment, the air guide plate is arc-shaped. The air guide plate is arc-shaped, so that the guide area of ​​the air guide plate is larger, the fluid can be guided over a large range with better guiding effect, and the fluid is more stable during the conveying process, so that the delivery of the fluid to the burner will not affect the stability of the flame.

[0007] In one embodiment, the air inlet assembly includes an air inlet shell and a cover plate assembly, the cover plate assembly is arranged on the air inlet shell, the air passage cavity is formed between the cover plate assembly and the air inlet shell, the air outlet assembly is provided with an air guide channel or the cover plate assembly and the air outlet assembly are enclosed to form an air guide channel, and the air inlet, the air passage cavity, the air guide channel and the air outlet are connected in sequence. The air inlet, the air passage cavity, the air guide channel and the air outlet are connected in sequence, and the combustion-supporting wind and other fluids entering from the air inlet can be guided and pressurized through the air cavity and the air guide channel in sequence and then output from the air outlet, so that the fluid is transported unimpeded and the transport efficiency is high. The air passage cavity is enclosed by the cover plate assembly and the air inlet shell, and the air guide channel is enclosed by the cover plate assembly and the air outlet assembly, so that the fluid diversion effect is better and the overall structure of the product is more compact.

[0008] In one embodiment, the air guide channel includes a pressurized flow channel and an air outlet flow channel, the pressurized flow channel is connected to the air passage cavity and the air outlet flow channel respectively, the cross-sectional area of ​​the pressurized flow channel gradually decreases in the direction toward the air outlet flow channel, and the air outlet flow channel is connected to the air outlet. By gradually decreasing the cross-sectional area of ​​the pressurized flow channel in the direction toward the air outlet flow channel, the air outlet pressure and air outlet rate of the fluid with a constant flow rate will automatically increase, so that the efficiency of fluid delivery to the burner is higher, the working efficiency of the product is optimized, and sufficient combustion-supporting air is ensured for the burner, thereby improving the combustion efficiency.

[0009] In one embodiment, the air passage cavity, the air guide channel and the air outlet are arranged opposite to each other in sequence. By arranging the air passage cavity, the air guide channel and the air outlet opposite to each other in sequence, the structure of conveying fluid is relatively simple, ensuring the smoothness of fluid conveying and high efficiency of fluid conveying.

[0010] In one embodiment, the air inlet housing includes a first shell member, an air inlet housing member and a second shell member, the first shell member and the second shell member are both arranged on the air inlet housing member and are respectively located on both sides of the air inlet housing member, the cover plate assembly is arranged on the first shell member, the second shell member is used to connect with the air outlet assembly, the air inlet housing member is provided with the air inlet, and the air guide plate is arranged on the first shell member and / or the second shell member. By the first shell member and the second shell member being both arranged on the air inlet housing member and being respectively located on both sides of the air inlet housing member, the overall appearance of the air inlet housing is coordinated and more beautiful. By the cover plate assembly being arranged on the first shell member, the stability of the cover plate assembly is good. By the second shell member being used to connect with the air outlet assembly, the assembly of the second shell member and the air outlet assembly is more secure and has better integrity, thereby ensuring the stability of fluid transportation.

[0011] In one embodiment, the air guide plate is tilted relative to the first shell and / or the second shell. The air guide plate is tilted relative to the first shell and the second shell, so that the conveying direction of the fluid can be changed. Moreover, the change in the cross-sectional area of ​​the air guide plate can avoid or reduce phenomena such as fluid vortex and fluid backflow, reduce wind loss, and improve fluid utilization.

[0012] In one embodiment, the number of the air guide plates is at least two, one of the at least two air guide plates is respectively in contact with the first shell member and the air inlet shell member, and the other of the at least two air guide plates is respectively in contact with the air inlet shell member and the second shell member. With one air guide plate respectively in contact with the first shell member and the air inlet shell member, and the other air guide plate respectively in contact with the air inlet shell member and the second shell member, the air guide plates can guide the flow direction of the fluid and adjust the distribution and velocity of the fluid, thereby ensuring that the fluid is transported more evenly in the air cavity and the air guide channel, and the flow guiding effect is good.

[0013] In one embodiment, the air guide plate and the air inlet assembly enclose a pressure-maintaining flow channel, and both ends of the pressure-maintaining flow channel are connected to the air passage cavity. The air guide plate is provided with a plurality of air passage holes, and the plurality of air passage holes are sequentially arranged along the circumference of the air guide plate. The air passage cavity, the plurality of air passage holes and the pressure-maintaining flow channel are sequentially connected. The air passage cavity, the plurality of air passage holes and the pressure-maintaining flow channel are sequentially connected, so that the air pressure of the pressure-maintaining flow channel and the air passage cavity remains consistent, thereby achieving the purpose of reducing wind loss and balancing air pressure. Both ends of the pressure-maintaining flow channel are connected to the air passage cavity, so that the fluid transported to the pressure-maintaining flow channel can flow back into the air passage cavity, thereby avoiding excessive accumulation of fluid in the pressure-maintaining flow channel and causing excessive air pressure. The plurality of air passage holes are sequentially arranged along the circumference of the air guide plate, so that the effect of reducing wind loss and balancing air pressure is better.

[0014] In one embodiment, the air outlet assembly includes a pressurized shell and an air outlet shell, the pressurized shell is arranged on the air inlet assembly, the pressurized shell is provided with a pressurized flow channel or the pressurized shell and the cover plate assembly are enclosed to form a pressurized flow channel, the pressurized flow channel is connected to the air passage cavity, the air outlet shell is arranged on the pressurized shell and is located on the side of the pressurized shell away from the air inlet assembly, the air outlet shell is provided with the air outlet, the air outlet shell is provided with an air outlet flow channel or the air outlet shell and the cover plate assembly are enclosed to form an air outlet flow channel, and the air outlet flow channel is respectively connected to the pressurized flow channel and the air outlet. The air outlet flow channel is connected with the pressurized flow channel, and the pressurized flow channel is set so that the fluid is automatically pressurized and accelerated when passing through the pressurized flow channel, so that the fluid conveying efficiency in the air outlet flow channel is higher, and the working efficiency of the product is optimized. By sequentially arranging the air inlet assembly, the pressurized shell and the air outlet shell, the structural distribution is more reasonable, the product structure is relatively simple, the cost is low, the practicability is strong, and it is convenient to install on the burner.

[0015] In one embodiment, the pressurized shell includes a first convex rib, a pressurized shell body and a second convex rib. The pressurized shell body and the cover plate assembly enclose the pressurized flow channel. The first convex rib and the second convex rib are both arranged on the pressurized shell body and are respectively located on both sides of the pressurized shell body. The first convex rib is used to connect with the air inlet assembly, and the second convex rib is used to connect with the air outlet shell. The first convex rib is connected to the air inlet assembly, and the second convex rib is connected to the air outlet shell. The connection stability, firmness and reliability of the air inlet assembly, the air outlet shell and the pressurized shell are good, thereby ensuring the fluid delivery efficiency. The first convex rib and the second convex rib are located on both sides of the pressurized shell body, and the structure is reasonably distributed and the appearance quality is good.

[0016] In one embodiment, the air outlet housing includes an air outlet housing body and a mounting plate, the air outlet housing body is provided with the air outlet, the air outlet housing body and the cover plate assembly enclose the air outlet flow channel, and the mounting plate is provided on the air outlet housing body, and the mounting plate is used to connect with the pressurized housing. The mounting plate is connected to the pressurized housing by bolts and other connectors, so that the installation and disassembly process of the air outlet housing and the pressurized housing is simple and convenient, which is convenient for manufacturing finished products and later inspection and maintenance. Moreover, the mounting plate and the pressurized housing are reliably sealed to prevent fluid leakage from the gap between the mounting plate and the pressurized housing.

[0017] In one embodiment, the cover plate assembly includes a protective cover plate, a guide column and reinforcing ribs. The protective cover plate is arranged on the air inlet housing, the guide column is arranged on the protective cover plate, the guide column extends to the interior of the air outlet assembly after passing through the air inlet housing, the guide column and the air inlet housing enclose the air passage cavity, the guide column and the air outlet assembly enclose the air guide channel, and the reinforcing ribs are respectively in contact with the protective cover plate and the guide column. By providing the protective cover plate on the air inlet housing, the fluid in the air passage cavity is prevented from leaking from the air inlet assembly, and external dust and other particulate matter are prevented from entering the air passage cavity. By having the reinforcing ribs respectively in contact with the protective cover plate and the guide column, the structural strength of the cover plate assembly can be strengthened, and the cover plate assembly can withstand a larger load, thereby increasing the service life of the cover plate assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a first stereoscopic view of the anti-swirl flow structure of the air inlet box;

[0019] Figure 2 A second stereoscopic view of the anti-swirl structure of the air inlet box;

[0020] Figure 3 It is a cross-sectional view of the anti-swirl structure of the air inlet box;

[0021] Figure 4This is the exploded view of the anti-swirl structure of the air inlet box;

[0022] Figure 5 is a cross-sectional view of the air inlet housing;

[0023] Figure 6 is a three-dimensional diagram of a pressurized housing;

[0024] Figure 7 is a three-dimensional diagram of the air outlet housing;

[0025] Figure 8 A perspective view of the cover assembly.

[0026] The corresponding relationship between the reference numerals and the component names is as follows:

[0027] 1 air inlet assembly, 11 air inlet housing, 111 first housing, 112 air inlet housing, 113 second housing, 12 cover assembly, 121 protective cover, 122 guide column, 123 reinforcing ribs, 101 air cavity, 102 air inlet, 103 pressure-maintaining flow channel;

[0028] 2 air outlet assembly, 21 pressurized shell, 211 first convex rib, 212 pressurized shell body, 213 second convex rib, 22 air outlet shell, 221 air outlet shell body, 222 mounting plate, 201 air outlet, 202 air guide channel, 2021 pressurized flow channel, 2022 air outlet flow channel;

[0029] 3 air guide plates, 301 air holes. DETAILED DESCRIPTION

[0030] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0032] like Figure 1-3As shown, the present embodiment discloses an anti-swirl flow structure of an air inlet box, comprising: an air inlet component 1, wherein the air inlet component 1 is provided with an air passage cavity 101, and the air inlet component 1 is provided with an air inlet 102 connected with the air passage cavity 101; an air outlet component 2, wherein the air outlet component 2 is arranged on the air inlet component 1, and the air outlet component 2 is provided with an air outlet 201, and the air outlet 201 is connected with the air passage cavity 101; an air guide plate 3, wherein the air guide plate 3 is arranged on the air inlet component 1, and the air guide plate 3 is located between the air inlet 102 and the air outlet 201, and the air guide plate 3 is used for guiding the fluid in the air inlet component 1.

[0033] The present application discloses an air inlet box anti-swirl flow structure, which is connected to the air inlet 102 and the air outlet 201 respectively through the air cavity 101, so that the fluid entering from the air inlet 102 can be transported through the air cavity 101 and then output from the air outlet 201. The air guide plate 3 is located between the air inlet 102 and the air outlet 201, so that the air guide plate 3 can adjust the distribution and speed of the fluid, ensure that the fluid is transported more evenly in the air cavity 101, and avoid or reduce the phenomenon of fluid vortex, backflow, etc., so that the fluid is more stable during the transportation process, and the transportation of the fluid to the burner will not affect the stability of the flame. In addition, the setting of the air guide plate 3 can improve the overall structural strength of the product.

[0034] like Figure 2 and Figure 4 As shown, in addition to the features of the above embodiment, this embodiment further defines that: the air guide plate 3 is arc-shaped. The air guide plate 3 is arc-shaped, and the guide area of ​​the air guide plate 3 is larger, and the fluid can be guided over a large range with a better guide effect, and the fluid is more stable during the transportation process, so that the delivery of the fluid to the burner will not affect the stability of the flame.

[0035] like Figure 3 and Figure 4As shown, in addition to the features of the above-mentioned embodiment, this embodiment further defines that: the air inlet assembly 1 includes an air inlet housing 11 and a cover assembly 12, the cover assembly 12 is arranged on the air inlet housing 11, the air passage cavity 101 is formed between the cover assembly 12 and the air inlet housing 11, the air outlet assembly 2 is provided with an air guide channel 202 or the cover assembly 12 and the air outlet assembly 2 are enclosed to form an air guide channel 202, and the air inlet 102, the air passage cavity 101, the air guide channel 202 and the air outlet 201 are connected in sequence. Through the air inlet 102, the air passage cavity 101, the air guide channel 202 and the air outlet 201 being connected in sequence, the combustion-supporting air and other fluids entering from the air inlet 102 can be guided and pressurized through the air cavity 101 and the air guide channel 202 in sequence and then output from the air outlet 201, the fluid is transported smoothly without obstruction, and the transport efficiency is high. The cover plate assembly 12 and the air inlet housing 11 enclose an air cavity 101, and the cover plate assembly 12 and the air outlet assembly 2 enclose an air guide channel 202, so that the fluid guiding effect is better and the overall structure of the product is more compact.

[0036] like Figure 3 As shown, in addition to the features of the above-mentioned embodiment, this embodiment further defines that: the air guide channel 202 includes a pressurized flow channel 2021 and an air outlet flow channel 2022, the pressurized flow channel 2021 is respectively connected to the air passage cavity 101 and the air outlet flow channel 2022, the cross-sectional area of ​​the pressurized flow channel 2021 gradually decreases in the direction toward the air outlet flow channel 2022, and the air outlet flow channel 2022 is connected to the air outlet 201. The cross-sectional area of ​​the pressurized flow channel 2021 gradually decreases in the direction toward the air outlet flow channel 2022, and the air outlet pressure and air outlet rate of the fluid with a constant flow rate will automatically increase, so that the efficiency of fluid delivery to the burner is higher, the working efficiency of the product is optimized, and sufficient combustion-supporting air is ensured for the burner, thereby improving the combustion efficiency.

[0037] like Figure 3 As shown, in addition to the features of the above embodiment, this embodiment further defines that: the air passage cavity 101, the air guide channel 202 and the air outlet 201 are arranged in sequence and opposite to each other. By arranging the air passage cavity 101, the air guide channel 202 and the air outlet 201 in sequence and opposite to each other, the structure of conveying fluid is relatively simple, ensuring the smoothness of fluid conveying and high efficiency of fluid conveying.

[0038] like Figure 5As shown, in addition to the features of the above-mentioned embodiment, this embodiment further defines that: the air inlet housing 11 includes a first shell 111, an air inlet housing 112 and a second shell 113, the first shell 111 and the second shell 113 are both arranged on the air inlet housing 112 and are respectively located on both sides of the air inlet housing 112, the cover assembly 12 is arranged on the first shell 111, the second shell 113 is used to connect with the air outlet assembly 2, the air inlet housing 112 is provided with the air inlet 102, and the air guide plate 3 is arranged on the first shell 111 and / or the second shell 113. By both the first shell 111 and the second shell 113 being arranged on the air inlet housing 112 and being respectively located on both sides of the air inlet housing 112, the overall structure of the air inlet housing 11 is coordinated and more beautiful. By the cover assembly 12 being arranged on the first shell 111, the stability of the cover assembly 12 is good. The second shell 113 is used to connect with the air outlet assembly 2, so that the assembly of the second shell 113 and the air outlet assembly 2 is more secure and has better integrity, thereby ensuring the stability of fluid transportation.

[0039] like Figure 2 and Figure 5 As shown, in addition to the features of the above embodiment, this embodiment further defines that: the air guide plate 3 is tilted relative to the first shell 111 and / or the second shell 113. The air guide plate 3 is tilted relative to the first shell 111 and the second shell 113, so that the conveying direction of the fluid can be changed. Moreover, the change in the cross-sectional area of ​​the air guide plate 3 can avoid or reduce phenomena such as fluid vortex and fluid backflow, reduce wind loss, and improve fluid utilization.

[0040] like Figure 5 As shown, in addition to the features of the above-mentioned embodiment, this embodiment further defines that: the number of the air guide plates 3 is at least two, one of the at least two air guide plates 3 is respectively in contact with the first shell member 111 and the air inlet shell member 112, and the other of the at least two air guide plates 3 is respectively in contact with the air inlet shell member 112 and the second shell member 113. With one air guide plate 3 respectively in contact with the first shell member 111 and the air inlet shell member 112, and the other air guide plate 3 respectively in contact with the air inlet shell member 112 and the second shell member 113, the air guide plate 3 can guide the flow direction of the fluid and adjust the distribution and velocity of the fluid, thereby ensuring that the fluid is transported more evenly in the air cavity 101 and the air guide channel 202, and the flow guiding effect is good.

[0041] like Figure 3 and Figure 5As shown, in addition to the features of the above-mentioned embodiment, this embodiment further defines that: the air guide plate 3 and the air inlet assembly 1 enclose a pressure-maintaining flow channel 103, both ends of the pressure-maintaining flow channel 103 are connected to the air passage cavity 101, the air guide plate 3 is provided with a plurality of air holes 301, and the plurality of air holes 301 are sequentially arranged along the circumference of the air guide plate 3, and the air passage cavity 101, the plurality of air holes 301 and the pressure-maintaining flow channel 103 are sequentially connected. By the air passage cavity 101, the plurality of air holes 301 and the pressure-maintaining flow channel 103 are sequentially connected, so that the air pressure of the pressure-maintaining flow channel 103 and the air passage cavity 101 is kept consistent, so as to achieve the purpose of reducing wind loss and balancing air pressure. By both ends of the pressure-maintaining flow channel 103 being connected to the air passage cavity 101, the fluid transported to the pressure-maintaining flow channel 103 can flow back to the air passage cavity 101, so as to avoid excessive accumulation of fluid in the pressure-maintaining flow channel 103 and causing excessive air pressure. By sequentially disposing a plurality of air holes 301 along the circumference of the air guide plate 3 , the effect of reducing wind loss and balancing air pressure is better.

[0042] like Figure 6 and Figure 7 As shown, in addition to the features of the above-mentioned embodiments, the present embodiment further defines that: the air outlet assembly 2 includes a pressurized shell 21 and an air outlet shell 22, the pressurized shell 21 is arranged on the air inlet assembly 1, the pressurized shell 21 is provided with a pressurized flow channel 2021 or the pressurized shell 21 and the cover assembly 12 are enclosed to form a pressurized flow channel 2021, the pressurized flow channel 2021 is connected with the air passage cavity 101, the air outlet shell 22 is arranged on the pressurized shell 21 and is located on the side of the pressurized shell 21 away from the air inlet assembly 1, the air outlet shell 22 is provided with the air outlet 201, the air outlet shell 22 is provided with an air outlet flow channel 2022 or the air outlet shell 22 and the cover assembly 12 are enclosed to form an air outlet flow channel 2022, the air outlet flow channel 2022 is respectively connected with the pressurized flow channel 2021 and the air outlet 201. The outlet flow channel 2022 is connected to the pressurized flow channel 2021. The pressurized flow channel 2021 is set so that the fluid is automatically pressurized and accelerated when passing through the pressurized flow channel 2021, so that the fluid is more efficiently transported in the outlet flow channel 2022, and the work efficiency of the product is optimized. The air inlet assembly 1, the pressurized housing 21 and the outlet housing 22 are arranged in sequence, and the structural distribution is more reasonable. The product structure is relatively simple, the cost is low, the practicability is strong, and it is convenient to install on the burner.

[0043] like Figure 6As shown, in addition to the features of the above embodiment, this embodiment further defines that: the pressurized shell 21 includes a first convex rib 211, a pressurized shell body 212 and a second convex rib 213, the pressurized shell body 212 and the cover plate assembly 12 enclose the pressurized flow channel 2021, the first convex rib 211 and the second convex rib 213 are both arranged on the pressurized shell body 212 and are respectively located on both sides of the pressurized shell body 212, the first convex rib 211 is used to connect with the air inlet assembly 1, and the second convex rib 213 is used to connect with the air outlet shell 22. The first convex rib 211 is connected to the air inlet assembly 1, and the second convex rib 213 is connected to the air outlet shell 22. The connection stability, firmness and reliability of the air inlet assembly 1, the air outlet shell 22 and the pressurized shell 21 are good, and the fluid delivery efficiency is guaranteed. The first convex rib 211 and the second convex rib 213 are located on both sides of the pressurized shell body 212, and the structure distribution is reasonable and the appearance quality is good.

[0044] like Figure 7 As shown, in addition to the features of the above-mentioned embodiment, this embodiment further defines that: the air outlet housing 22 includes an air outlet housing body 221 and a mounting plate 222, the air outlet housing body 221 is provided with the air outlet 201, the air outlet housing body 221 and the cover plate assembly 12 enclose the air outlet flow channel 2022, the mounting plate 222 is arranged on the air outlet housing body 221, and the mounting plate 222 is used to connect with the pressurized housing 21. The mounting plate 222 is connected to the pressurized housing 21 by bolts and other connecting parts, so that the installation and disassembly process of the air outlet housing 22 and the pressurized housing 21 is simple and convenient, which is convenient for manufacturing finished products and later inspection and maintenance. Moreover, the mounting plate 222 and the pressurized housing 21 are reliably sealed to prevent fluid leakage from the gap between the mounting plate 222 and the pressurized housing 21.

[0045] like Figure 8As shown, in addition to the features of the above-mentioned embodiment, this embodiment further defines that: the cover plate assembly 12 includes a protective cover plate 121, a guide column 122 and a reinforcing rib 123, the protective cover plate 121 is arranged on the air inlet housing 11, the guide column 122 is arranged on the protective cover plate 121, the guide column 122 passes through the air inlet housing 11 and extends to the interior of the air outlet assembly 2, the guide column 122 and the air inlet housing 11 enclose the air passage 101, the guide column 122 and the air outlet assembly 2 enclose the air guide channel 202, and the reinforcing rib 123 abuts against the protective cover plate 121 and the guide column 122 respectively. The protective cover plate 121 is arranged on the air inlet housing 11 to prevent the fluid in the air passage 101 from leaking from the air inlet assembly 1, and to prevent external dust and other particles from entering the air passage 101. By respectively abutting the reinforcing ribs 123 against the protective cover plate 121 and the guide column 122 , the structural strength of the cover plate assembly 12 can be enhanced, and the cover plate assembly 12 can withstand a greater load, thereby increasing the service life of the cover plate assembly 12 .

[0046] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An air inlet box anti-swirl flow structure, characterized in that: include: An air inlet assembly (1), the air inlet assembly (1) being provided with an air passage cavity (101), and the air inlet assembly (1) being provided with an air inlet (102) communicating with the air passage cavity (101); An air outlet component (2), the air outlet component (2) being arranged on the air inlet component (1), the air outlet component (2) being provided with an air outlet (201), the air outlet (201) being in communication with the air passage cavity (101); an air guide plate (3), the air guide plate (3) being arranged on the air inlet assembly (1), the air guide plate (3) being located between the air inlet (102) and the air outlet (201), the air guide plate (3) being used to guide the fluid in the air inlet assembly (1); The air inlet assembly (1) comprises an air inlet housing (11) and a cover plate assembly (12); The air inlet housing (11) comprises a first housing component (111), an air inlet housing component (112) and a second housing component (113); The number of the air guide plates (3) is at least two, one of the at least two air guide plates (3) is respectively in contact with the first shell member (111) and the air inlet shell member (112), and the other of the at least two air guide plates (3) is respectively in contact with the air inlet shell member (112) and the second shell member (113); The air guide plate (3) and the air inlet assembly (1) enclose a pressure-maintaining flow channel (103), both ends of the pressure-maintaining flow channel (103) are connected to the air passage cavity (101), the air guide plate (3) is provided with a plurality of air passage holes (301), the plurality of air passage holes (301) are sequentially arranged along the circumference of the air guide plate (3), the air passage cavity (101), the plurality of air passage holes (301) and the pressure-maintaining flow channel (103) are sequentially connected.

2. The anti-swirl flow structure of the air inlet box according to claim 1, characterized in that: The cover plate assembly (12) is arranged on the air inlet shell (11), the air passage cavity (101) is formed between the cover plate assembly (12) and the air inlet shell (11), the air outlet assembly (2) is provided with an air guide channel (202) or the cover plate assembly (12) and the air outlet assembly (2) are enclosed to form an air guide channel (202), and the air inlet (102), the air passage cavity (101), the air guide channel (202) and the air outlet (201) are connected in sequence.

3. The anti-swirl flow structure of the air inlet box according to claim 2, characterized in that: The air guide channel (202) comprises a pressurized flow channel (2021) and an air outlet flow channel (2022); the pressurized flow channel (2021) is respectively connected to the air passage cavity (101) and the air outlet flow channel (2022); the cross-sectional area of ​​the pressurized flow channel (2021) gradually decreases in a direction toward the air outlet flow channel (2022); and the air outlet flow channel (2022) is connected to the air outlet (201); And / or the air passage cavity (101), the air guide channel (202) and the air outlet (201) are arranged in sequence relative to each other.

4. The anti-swirl flow structure of the air inlet box according to claim 1, characterized in that: The first shell component (111) and the second shell component (113) are both arranged on the air inlet shell component (112) and are respectively located on both sides of the air inlet shell component (112); the cover plate assembly (12) is arranged on the first shell component (111); the second shell component (113) is used to connect with the air outlet assembly (2); the air inlet shell component (112) is provided with the air inlet (102); and the air guide plate (3) is arranged on the first shell component (111) and / or the second shell component (113).

5. The anti-swirl flow structure of the air inlet box according to claim 1, characterized in that: The air outlet assembly (2) comprises a pressurized shell (21) and an air outlet shell (22); the pressurized shell (21) is arranged on the air inlet assembly (1); the pressurized shell (21) is provided with a pressurized flow channel (2021) or the pressurized shell (21) and the cover plate assembly (12) are enclosed to form a pressurized flow channel (2021); the pressurized flow channel (2021) is communicated with the air passage cavity (101); the air outlet shell (22) is arranged on the pressurized shell The air outlet housing (22) is provided with the air outlet port (201), the air outlet housing (22) is provided with an air outlet passage (2022) or the air outlet housing (22) and the cover plate assembly (12) are combined to form an air outlet passage (2022), and the air outlet passage (2022) is respectively connected to the pressurized passage (2021) and the air outlet port (201).

6. The anti-swirl flow structure of the air inlet box according to claim 5, characterized in that: The pressurized shell (21) comprises a first convex rib (211), a pressurized shell body (212) and a second convex rib (213); the pressurized shell body (212) and the cover plate assembly (12) enclose the pressurized flow channel (2021); the first convex rib (211) and the second convex rib (213) are both arranged on the pressurized shell body (212) and are respectively located on both sides of the pressurized shell body (212); the first convex rib (211) is used to connect to the air inlet assembly (1), and the second convex rib (213) is used to connect to the air outlet shell (22).

7. The anti-swirl flow structure of the air inlet box according to claim 5, characterized in that: The air outlet shell (22) comprises an air outlet shell body (221) and a mounting plate (222); the air outlet shell body (221) is provided with the air outlet (201); the air outlet shell body (221) and the cover plate assembly (12) are combined to form the air outlet flow channel (2022); the mounting plate (222) is arranged on the air outlet shell body (221); and the mounting plate (222) is used to be connected to the pressurized shell (21).

8. The anti-swirl flow structure of the air inlet box according to claim 2, characterized in that: The cover plate assembly (12) comprises a protective cover plate (121), a guide column (122) and a reinforcing rib (123); the protective cover plate (121) is arranged on the air inlet housing (11); the guide column (122) is arranged on the protective cover plate (121); the guide column (122) passes through the air inlet housing (11) and extends to the interior of the air outlet assembly (2); the guide column (122) and the air inlet housing (11) together form the air passage cavity (101); the guide column (122) and the air outlet assembly (2) together form the air guide channel (202); and the reinforcing rib (123) is respectively in contact with the protective cover plate (121) and the guide column (122).

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