Valve and heat dissipation housing thereof

Abstract

The utility model belongs to the air lock fan equipment technical field, concretely relates to a kind of air lock fan and its heat dissipation shell, and the air lock fan of the utility model includes: casing;Impeller, rotation is arranged in the casing;At least one heat dissipation fin, it is arranged on the outer wall of the casing;The heat dissipation fin inside hollow, its internal cavity and the internal space of casing are communicated by air inlet;And the end of the heat dissipation fin is also equipped with the exhaust port that communicates with outside;The rotational motion of the impeller forms airflow in the casing, to make the heated gas carried by material flow through the internal cavity of the heat dissipation fin and discharge from exhaust port.The air lock fan of the utility model is hollow heat dissipation fin by being arranged on the outer wall of casing, and make its internal cavity and casing internal communication, and hollow heat dissipation fin can quickly export the heat inside casing, effectively prevent bearing and other key components from lubrication failure due to high temperature.

Description

Technical Field

[0001] This utility model belongs to the technical field of air shut-off equipment, and particularly relates to an air shut-off machine and its heat dissipation housing. Background Technology

[0002] A rotary valve, also known as a rotary valve or discharge valve, has the core function of discharging materials evenly from the upper hopper through the continuous rotation of the impeller.

[0003] In practical industrial applications, especially on some harsh continuous production lines (such as the outlet of drying equipment in chemical plants), the materials that the rotary valve needs to handle are extremely hot. These high-temperature materials continuously bring enormous amounts of heat into the rotary valve. The heat dissipation performance of existing rotary valves is insufficient, causing heat to accumulate rapidly in critical parts such as the casing and bearing housing, and it cannot be dissipated in time. High temperatures will cause the grease in the bearing cavity to oxidize faster, thin and leak out, resulting in lubrication failure, abnormal bearing wear, or even seizure.

[0004] Therefore, how to improve the heat dissipation performance of the airlock and avoid excessively high bearing cavity temperature when handling high-temperature materials is a technical problem that urgently needs to be solved by those skilled in the art.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Utility Model Content

[0006] This disclosure provides at least one air shut-off fan and its heat dissipation housing.

[0007] In a first aspect, embodiments of this disclosure provide a shut-off fan, comprising: chassis; The impeller is rotatably mounted inside the housing; At least one heat dissipation fin is disposed on the outer wall of the housing; The heat dissipation fins are hollow inside, and their internal cavities are connected to the internal space of the casing through an air inlet; and the ends of the heat dissipation fins are also provided with exhaust ports that communicate with the outside. The internal space of the casing, the air inlet, the internal cavity of the heat dissipation fins, and the exhaust port together form a heat dissipation channel. When the impeller rotates, the heated gas inside the casing flows along the heat dissipation channel and is discharged from the exhaust port under the driving force of the impeller and the thermal lift.

[0008] In one alternative embodiment, the heat dissipation fins are disposed on the upper half of the casing, with an angle of 30°≥α≥60° ​​with respect to the horizontal plane.

[0009] In one alternative embodiment, the exhaust port is provided with a dustproof plate at an angle.

[0010] In one alternative embodiment, the air intake is provided with a grille.

[0011] In one alternative embodiment, the number of heat dissipation fins is multiple, which are arranged parallel to each other and evenly spaced on the upper side of the casing.

[0012] In one alternative embodiment, the heat dissipation fins have a streamlined, rectangular, or trapezoidal cross-sectional shape.

[0013] Secondly, embodiments of this disclosure also provide a heat dissipation housing for a fan shut-off fan, comprising: chassis; At least one heat dissipation fin is disposed on the outer wall of the housing; The heat dissipation fins are hollow inside, and their internal cavity is connected to the internal space of the casing through an air inlet; and the ends of the heat dissipation fins are also provided with exhaust ports that are connected to the outside.

[0014] In one alternative embodiment, the heat dissipation fins are disposed on the upper half of the casing, with an angle of 30°≥α≥60° ​​with respect to the horizontal plane.

[0015] In one optional embodiment, the exhaust port is obliquely provided with a dustproof plate; and, The air intake is equipped with a grille.

[0016] In one optional embodiment, the number of heat dissipation fins is multiple, which are arranged parallel to each other and evenly spaced on the upper side of the casing. Alternatively, the cross-sectional shape of the heat dissipation fins may be streamlined, rectangular, or trapezoidal.

[0017] The beneficial effect of this utility model is that, by setting hollow heat dissipation fins on the outer wall of the casing and connecting the internal cavity of the fins with the inside of the casing, the hollow heat dissipation fins increase the heat dissipation area of ​​the casing and provide a heat convection channel, which can quickly dissipate the heat inside the casing and effectively prevent the lubrication failure of key components such as bearings due to high temperature.

[0018] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and drawings.

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 A perspective view of a valve provided in an embodiment of this disclosure; Figure 2 This is a cross-sectional view of a shut-off fan provided in an embodiment of this disclosure.

[0022] In the picture: 100. Housing; 200. Impeller; 300. Heat dissipation fins; 310. Air inlet; 320. Exhaust outlet; 330. Dustproof plate; 340. Grille. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] In this document, when it is mentioned that a first component is located on a second component, this can mean that the first component can be directly formed on the second component, or that a third component can be inserted between the first and second components. Furthermore, in the accompanying drawings, the thickness of the components may be exaggerated or reduced for the purpose of effectively describing the technical content.

[0025] In this document, when an element or layer is referred to as “located,” “joined to,” “connected to,” “attached to,” or “coupled to” another element or layer, it may be directly located, joined, connected, attached to, or coupled to the other element or layer, or there may be intermediate elements or layers present. Conversely, when an element is referred to as “directly on another element or layer,” “directly joined to,” “directly connected to,” “directly attached to,” or “directly coupled to” another element or layer, there may be no intermediate elements or layers present. Other terms used to describe relationships between elements should be interpreted in a similar manner (e.g., “between” versus “directly between,” “adjacent” versus “directly adjacent,” etc.). As used herein, the term “and / or” includes any and all combinations of one or more of the related listed items.

[0026] In this document, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as “at least one of…” modify the entire list of elements when following a list of elements, rather than individual elements in the list. For example, the expression “at least one of a, b, and c” should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0027] The terminology used herein is for the purpose of describing specific exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “an,” and “the” may also be intended to include plural forms unless otherwise clearly stated herein. The terms “comprising,” “including,” and “having” are inclusive and thus specify the presence of features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein should not be construed as requiring them to be performed in the specific order discussed or shown, unless specifically identified as such. Additional or alternative steps may be employed.

[0028] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.

[0029] Research has revealed shortcomings in existing technologies: In practical industrial applications, especially on demanding continuous production lines (such as the outlet of drying equipment in chemical plants), the materials processed by the rotary valves are extremely hot, continuously drawing enormous amounts of heat into the valve's interior. Existing rotary valves suffer from insufficient heat dissipation, causing a rapid accumulation of heat in critical components such as the casing and bearing housings, which cannot be dissipated promptly. This high temperature accelerates the oxidation and thinning of the grease within the bearing cavity, leading to lubrication failure, abnormal bearing wear, and even seizure.

[0030] Based on the above research, this disclosure provides a fan that accelerates heat dissipation by setting heat dissipation fins on the outer wall of the housing, thus solving the above problems.

[0031] The shortcomings of the above solutions are the result of the inventor's practical experience and careful research. Therefore, the discovery process of the above problems and the solutions proposed in this disclosure should be considered as the inventor's contribution to this disclosure.

[0032] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0033] The following detailed description, with reference to the accompanying drawings, describes some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0034] See Figure 1 This disclosure provides a shut-off fan, including: a housing 100, and an impeller 200 rotatably disposed within the housing 100. The shaft of the impeller 200 passes through the housing 100 and is connected to the output shaft of a drive motor, and the shaft is connected to the housing 100 via a bearing.

[0035] See Figure 1 and Figure 2 At least one heat dissipation fin 300 is provided on the outer wall of the casing 100. In this embodiment, there are four heat dissipation fins 300, which are symmetrically arranged on the outer wall of the side of the casing 100. The heat dissipation fins 300 are hollow inside, and their internal cavities are connected to the internal space of the casing 100 through air inlets 310; and the ends of the heat dissipation fins 300 are also provided with exhaust ports 320 that are connected to the outside. When the fan is in working condition, the drive motor drives the impeller 200 to rotate. The rotation of the impeller 200 transfers the heat carried by the high-temperature material to the internal space of the casing 100, heating the gas therein. According to the thermodynamic principle, the density of the heated gas decreases, and it naturally rises under the action of buoyancy. Since the air inlets 310 of the heat dissipation fins 300 are preferably located in the hot air enrichment area of ​​the upper half of the casing 100, such as Figure 2 As indicated by the arrow, the rising heated gas naturally enters the internal cavity of the heat dissipation fins 300 through the air inlet 310. As the hot gas flows through the heat dissipation fins 300, its heat is continuously conducted to the external environment through the fin walls. With heat dissipation, the gas temperature gradually decreases, and finally, propelled by subsequent hot gas and its own gravity, it is discharged from the higher exhaust port 320, thus forming a continuous, stable, and energy-efficient self-circulating heat dissipation path. This design allows for rapid heat dissipation from the inside of the casing 100, effectively preventing lubrication failure of critical components such as bearings due to high temperatures.

[0036] See Figure 2In some embodiments, the outer wall of the fan housing 100 is provided with multiple heat dissipation fins 300. These heat dissipation fins 300 are preferably arranged in the upper half of the housing 100, i.e., the area above the centerline of the housing 100. This arrangement is based on thermodynamic principles: during equipment operation, hot air inside the housing 100 (generated by material transport or friction) naturally rises due to its decreased density and accumulates in the upper half of the housing 100. Concentrating the heat dissipation fins 300 in this area allows for direct and efficient contact with the hot air accumulation zone, improving heat dissipation efficiency. Preferably, the heat dissipation fins 300 can be made of a thermally conductive metal material (such as aluminum alloy or copper) with a wall thickness of 2-5 mm, achieving efficient heat conduction while ensuring structural strength. Furthermore, the angle α between the heat dissipation fins 300 and the horizontal plane is designed to be 30° ≥ α ≥ 60°, preferably 45°. By using the tilted heat dissipation fins 300, hot air can flow smoothly along the hollow cavity of the heat dissipation fins 300, reducing airflow resistance and thus enhancing heat exchange efficiency.

[0037] See Figure 1 and Figure 2 In some embodiments, the exhaust port 320 is inclinedly equipped with a dustproof plate 330. The dustproof plate 330 is preferably installed above the exhaust port 320 at a certain angle to the horizontal plane, and its installation angle can be adjusted according to the actual application environment (such as rainy or dusty conditions). The inclined design of the dustproof plate 330 allows hot gas to be smoothly discharged upwards, while using gravity and the inclined surface to block the direct intrusion of external rainwater and dust, preventing foreign objects from entering the internal cavity of the heat sink fins 300 through the exhaust port 320, thereby reducing the risk of blockage and corrosion and extending the service life of the equipment.

[0038] See Figure 2 In some embodiments, the air inlet 310 of the heat dissipation fins 300 is provided with a grille 340. The grille 340 can be installed at the inlet of the air inlet 310, and its mesh size is designed according to the material characteristics (such as particle size) to filter larger foreign objects or debris, preventing them from entering the casing 100 and damaging the impeller 200. Specifically, the grille 340 can be made of wear-resistant and corrosion-resistant materials (such as stainless steel wire mesh or perforated plate) and fixed to the surrounding structure of the air inlet 310 by welding or snap-fit.

[0039] See also Figure 2In some embodiments, a plurality of heat dissipation fins 300 are evenly arranged circumferentially on the upper side of the fan housing 100. Specifically, there are four heat dissipation fins 300, which extend radially around the center of the housing 100 and are evenly fixed to the periphery of the housing 100 in a parallel manner. The multiple heat dissipation fins 300 provide a large heat dissipation surface area, and their even distribution ensures uniform heat dissipation around the housing 100, avoiding local overheating and improving heat dissipation efficiency and stability.

[0040] See also Figure 2 In some embodiments, as seen in the cross-sectional view, the heat dissipation fins 300 have a rectangular cross-sectional shape. This shape has the advantages of simple processing, high structural strength, and easy to firmly bond with the housing 100 body through casting or welding. It should be noted that the specific shape shown in the accompanying drawings is only a preferred embodiment selected for clear structural illustration and is not intended to limit the scope of protection of this utility model. Based on the same inventive concept, the cross-sectional shape of the heat dissipation fins 300 can also adopt other equivalent designs that can achieve the same or similar functions. For example, heat dissipation fins 300 with a streamlined or trapezoidal cross-section can also be used.

[0041] See Figure 1 and Figure 2 Some embodiments also provide a heat dissipation housing for a fan, including: a housing 100; at least one heat dissipation fin 300 disposed on the outer wall of the housing 100; the heat dissipation fin 300 is hollow inside, and its internal cavity is connected to the internal space of the housing 100 through an air inlet 310; and the end of the heat dissipation fin 300 is also provided with an exhaust port 320 connected to the outside.

[0042] See Figure 2 In some embodiments, heat dissipation fins 300 are disposed on the upper half of the housing 100, and the angle between them and the horizontal plane is 30°≥α≥60°.

[0043] See Figure 1 and Figure 2 In some embodiments, the exhaust port 320 is provided with a dustproof plate 330 at an angle; and the air inlet 310 is provided with a grille 340.

[0044] See also Figure 2 In some embodiments, there are multiple heat dissipation fins 300, which are arranged parallel to each other and evenly spaced on the upper side of the housing 100; or, the cross-sectional shape of the heat dissipation fins 300 is streamlined, rectangular or trapezoidal.

[0045] It should be noted that the number of heat dissipation fins 300 shown in this embodiment is four, which is only for clearly illustrating a preferred embodiment of the technical solution of this utility model, and not a limitation on the scope of protection of this utility model. Those skilled in the art should understand that the number of heat dissipation fins 300 can be adaptively adjusted according to the specifications of the fan, the required heat dissipation, and the spatial layout. For example, for small equipment or applications with low heat dissipation requirements, only one or two heat dissipation fins 300 may be provided; for large equipment or high-temperature conditions, four, six, or more heat dissipation fins 300 may be provided, and these modifications all fall within the scope of protection of this utility model. The core of this utility model lies in the hollow, interconnected structure of the heat dissipation fins 300 and the heat convection circulation path they form, rather than their specific number.

[0046] In summary, this fan, by setting hollow heat dissipation fins 300 on the outer wall of the casing 100 and connecting its internal cavity with the inside of the casing 100, can quickly dissipate heat from the inside of the casing 100, effectively preventing critical components such as bearings from failing to lubricate due to high temperature.

[0047] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0048] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as the second element, component, region, layer, or segment.

[0049] Spatially relative terms, such as “inside,” “outside,” “below,” “below,” “down,” “above,” “up,” etc., may be used herein to describe the relationship between one element or feature illustrated in the figures and another element or feature. In addition to the orientations depicted in the figures, spatially relative terms may be intended to cover different orientations of the device in use or operation. For example, if the device in the figure is flipped, an element described as “below” or “below” other elements or features would be oriented as “above” other elements or features. Thus, the example term “below” can cover both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0050] In the above discussion, unless otherwise stated, when used to describe numerical values, the terms “about,” “approximately,” “basically,” etc., indicate a change of + / - 10% in that value.

[0051] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A type of airlock, characterized in that, include: Casing (100); An impeller (200) is rotatably disposed within the housing (100); At least one heat dissipation fin (300) is disposed on the outer wall of the housing (100); The heat dissipation fins (300) are hollow inside, and their internal cavity is connected to the internal space of the casing (100) through an air inlet (310); and the end of the heat dissipation fins (300) is also provided with an exhaust port (320) that is connected to the outside. The internal space of the casing (100), the air inlet (310), the internal cavity of the heat dissipation fins (300) and the exhaust port (320) together form a heat dissipation channel. When the impeller (200) rotates, the heated gas inside the casing (100) flows along the heat dissipation channel and is discharged from the exhaust port (320) under the driving force and thermal lift of the impeller (200).

2. The airlock as described in claim 1, characterized in that, The heat dissipation fins (300) are located on the upper half of the casing (100), and the angle between them and the horizontal plane is 30°≥α≥60°.

3. The airlock as described in claim 1, characterized in that, The exhaust port (320) is provided with a dustproof plate (330) at an angle.

4. The airlock as described in claim 1, characterized in that, The air inlet (310) is provided with a grille (340).

5. The airlock as described in claim 1, characterized in that, The heat dissipation fins (300) are multiple in number and are arranged parallel to each other and evenly spaced on the upper side of the casing (100).

6. The airlock as described in claim 1, characterized in that, The heat dissipation fins (300) have a streamlined, rectangular, or trapezoidal cross-sectional shape.

7. A heat dissipation housing for a fan, characterized in that, include: Casing (100); At least one heat dissipation fin (300) is disposed on the outer wall of the housing (100); The heat dissipation fins (300) are hollow inside, and their internal cavity is connected to the internal space of the casing (100) through an air inlet (310); and the end of the heat dissipation fins (300) is also provided with an exhaust port (320) that is connected to the outside.

8. The heat dissipation housing as described in claim 7, characterized in that, The heat dissipation fins (300) are located on the upper half of the casing (100), and the angle between them and the horizontal plane is 30°≥α≥60°.

9. The heat dissipation housing as described in claim 7, characterized in that, The exhaust port (320) is provided with a dustproof plate (330) at an angle; and, The air inlet (310) is provided with a grille (340).

10. The heat dissipation housing as described in claim 7, characterized in that, The number of heat dissipation fins (300) is multiple, which are arranged parallel to each other and evenly spaced on the upper side of the casing (100). Alternatively, the cross-sectional shape of the heat dissipation fins (300) may be streamlined, rectangular, or trapezoidal.

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