Laboratory anti-corrosion centrifugal fan with moisture-proof structure

Abstract

The utility model mainly relates to the technical field of centrifugal fans, in particular to a laboratory anti-corrosion centrifugal fan with a moisture-proof structure, which comprises a centrifugal fan main body and an air inlet guide pipe communicated with an air inlet of the centrifugal fan main body, and a moisture-proof plate in sealing fit with the inner wall of the air inlet guide pipe is fixedly arranged in the air inlet guide pipe; a plurality of flow dividing air channels which are horizontally arranged in an array mode are formed in the end of the damp-proof plate. The flow dividing air channels are composed of flow guiding air channels which are distributed at equal intervals in the vertical direction. A moisture absorbent cavity is formed between every two adjacent flow dividing air ducts, is filled with a solid drying agent and is communicated with the flow guiding air ducts through a plurality of breathable micropores. After the centrifugal fan is started, air enters the flow guide air duct through the air inlet guide pipe and makes contact with the solid drying agent in the moisture absorbent cavity through the breathable micropores to be dehumidified, and dry air flows back into the fan. By means of the design, the fan blades can be prevented from being corroded by moisture, dynamic balance unbalance caused by moisture attachment can be avoided, and the service life of equipment is effectively prolonged.

Description

TECHNICAL FIELD

[0001] The utility model mainly relates to centrifugal fan technical field, concretely relates to a laboratory anticorrosive centrifugal fan with moistureproof structure. BACKGROUND

[0002] Laboratory anticorrosive centrifugal fan is the key ventilation equipment of chemical experiment environment, biological pharmaceutical workshop and other special scenes, is mainly used to exclude corrosive gas, dust and maintains air circulation.Present technology, this kind of fan adopts stainless steel, glass steel and other corrosion -resistant materials to manufacture shell and fan blade, and simultaneously adds sealing structure in motor part to cope with chemical medium erosion.However, in practical application, when the fan operates in high humidity environment, or inhales the air containing condensed water vapor, the humid air without treatment can continuously contact the surface of the fan blade, although the fan blade material has certain corrosion resistance, but long -term contact liquid water or high humidity air can cause metal material electrochemical corrosion or resin matrix hydrolysis degradation of non -metallic material, significantly shortens the fan blade life, and the fan blade surface accumulates water and is easy to cause dynamic balance disorder, and vibration noise is caused, and seriously causes bearing wear and even motor overload. CONTENT OF UTILITY MODEL

[0003] 1. The technical problem to be solved by the utility model:

[0004] The utility model provides a laboratory anticorrosive centrifugal fan with moistureproof structure to solve the technical problems in the above background technology.

[0005] 2. Technical scheme:

[0006] To achieve the above object, the utility model provides a technical scheme: a laboratory anticorrosive centrifugal fan with moistureproof structure, including centrifugal fan main part and the air inlet pipe that is connected with the air inlet of it, the air inlet pipe is solid and is equipped with the moistureproof board that is sealed with its inner wall cooperation in it;

[0007] The moistureproof board end is provided with the multiple shunt air ducts of horizontal array arrangement, and the shunt air duct is composed of the air duct that is distributed along the vertical direction equidistance;

[0008] The moistureproof board end is provided with the multiple shunt air ducts of horizontal array arrangement, and the shunt air duct is composed of the air duct that is distributed along the vertical direction equidistance;

[0009] Further, the moistureproof board is provided with the moisture absorbent cavity along the air flow direction, and the two ends of the moisture absorbent cavity are respectively provided with the first sealing plate and the second sealing plate that are sealed with the inner wall of the moisture absorbent cavity, the first sealing plate and the second sealing plate are rigidly connected by the connecting column that is arranged in the axial direction, the second sealing plate outside close to the air inlet of the centrifugal fan main part is provided with the guide slide bar, and the guide slide bar is slidably connected with the guide plate arranged in the air inlet pipe.

[0010] Further, the moisture absorbing agent cavity top is fixedly connected with a feeding pipe extending to the outside of the air inlet guide pipe, and a plug is matched and installed on the top.

[0011] Further, a threaded hole is formed in the outermost guide plate, the threaded hole is in communication with a sliding groove for sliding of the guide slide rod, and a positioning bolt is arranged in the threaded hole.

[0012] Further, all the guide slide rods are fixedly installed on the cooperative support.

[0013] Further, the air inlet guide pipe is provided with operation windows on both sides.

[0014] Further, the air inlet end of the air inlet guide pipe is provided with a plug-in rail groove, the inner wall of the plug-in rail groove is provided with first positioning holes symmetrically distributed upwards and downwards, a mounting frame is detachably inserted into the plug-in rail groove, a dust screen is fixedly arranged in the mounting frame, second positioning holes corresponding to the first positioning holes are formed in the side wall of the mounting frame, and a locking pin is inserted into the corresponding first positioning hole and second positioning hole.

[0015] 3. Beneficial effects:

[0016] Compared with the prior art, the technical scheme has the following beneficial effects: after the centrifugal fan is started, air enters the air guide duct through the air inlet guide pipe, contacts the solid desiccant in the moisture absorbing agent cavity through the air permeable micropores, and is dehumidified, and the dry air returns to the inside of the fan. The design can not only prevent moisture corrosion of the fan blades, but also avoid imbalance of dynamic balance caused by moisture adhesion, effectively prolonging the service life of the equipment.

[0017] The air inlet end of the air inlet guide pipe is detachably provided with the mounting frame, and the dust screen in the mounting frame can filter dust in the air, avoiding pollution in the centrifugal fan body. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole structure schematic view of the utility model;

[0019] Figure 2 It is an installation frame and plug-in rail groove explosion structure schematic view of the utility model;

[0020] Figure 3 It is a Figure 2 enlarged structure schematic view of A in the middle;

[0021] Figure 4 It is an air inlet guide pipe internal structure schematic view of the utility model;

[0022] Figure 5 It is a moisture-proof plate cut part structure schematic view of the utility model;

[0023] Figure 6 It is the first sealing plate and first sealing plate connecting structure schematic view of the utility model;

[0024] Figure 7 It is the first sealing plate and first sealing plate connecting structure schematic view of the utility model; Figure 6 It is the first sealing plate and first sealing plate connecting structure schematic view of the utility model;

[0025] Reference Signs:

[0026] 1, centrifugal fan main body;2, air inlet duct;21, plug-in rail groove;211, first positioning hole;3, moisture-proof plate;31, flow guide air duct;32, moisture absorbent cavity;33, breathable micropore;4, first sealing plate;5, second sealing plate;6, connecting column;7, guide slide rod;8, guide plate;81, threaded hole;9, positioning bolt;10, cooperative support;11, feeding pipe;111, plug;12, operation window;13, mounting frame;131, second positioning hole;14, dust screen;15, locking pin. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of the utility model, the utility model will be described more fully below with reference to the relevant drawings, the drawings show several embodiments of the utility model, however, the utility model can be realized in many different forms, and is not limited to the embodiments described herein, on the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0028] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0029] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0030] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix", "have" and so on terms should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through intermediate medium, can be two element internal communication.For ordinary skilled person in the art, the above terms can be understood according to the specific meaning of the utility model. Embodiment

[0031] Refer to the attached Figures 1-7 A laboratory anticorrosive centrifugal fan with moisture-proof structure, including centrifugal fan main body 1 and with the air inlet of the air inlet communication air inlet pipe 2, the air inlet pipe 2 in solidly set with the inner wall sealing cooperation moisture-proof plate 3 of it;

[0032] The moisture-proof plate 3 end is provided with the horizontal array arrangement of multiple shunt air ducts, and the shunt air duct is composed of the flow guide air duct 31 along the vertical direction equidistant distribution;

[0033] Adjacent two shunt air ducts are equipped with moisture-absorbing agent cavity 32, and the moisture-absorbing agent cavity 32 is filled with solid desiccant, and is communicated with flow guide air duct 31 through a plurality of breathable micropores 33.

[0034] In the embodiment, after the centrifugal fan main body 1 starts, air will enter the air inlet pipe 2, then pass through the flow guide air duct 31, and because the flow guide air duct 31 and the moisture-absorbing agent cavity 32 are communicated through a plurality of breathable micropores 33, the moisture in the air is absorbed by the solid desiccant filled in the moisture-absorbing agent cavity 32, and then the dry air enters the inside of the centrifugal fan main body 1 through the air inlet, so that the moisture in the humid air is avoided to cause corrosion to the fan blade, prolongs its service life, and also avoids the moisture on the fan blade to cause imbalance.

[0035] The moisture-absorbing agent cavity 32 is provided in the moisture-proof plate 3 along the air flow direction, and the two ends of the moisture-absorbing agent cavity 32 are provided with a first sealing plate 4 and a second sealing plate 5, respectively, which are sealingly matched with the inner wall of the moisture-absorbing agent cavity 32, the first sealing plate 4 and the second sealing plate 5 are rigidly connected by the connecting column 6 arranged in the axial direction, the outer side of the second sealing plate 5 close to the air inlet of the centrifugal fan main body 1 is provided with a guide slide rod 7, and the guide slide rod 7 is slidingly connected with the guide plate 8 arranged in the air inlet pipe 2.

[0036] In the embodiment, the first sealing plate 4 and the second sealing plate 5 can close the two ends of the hygroscopic agent cavity 32, so as to limit the solid desiccant therein, and the first sealing plate 4 and the second sealing plate 5 are fixed through the connecting column 6, so that when the guide slide rod 7 is driven to slide with the guide plate 8, the first sealing plate 4 and the second sealing plate 5 can be driven to move in the hygroscopic agent cavity 32, so as to push the saturated solid desiccant in the hygroscopic agent cavity 32 out.

[0037] The hygroscopic agent cavity 32 is fixedly connected with a feeding pipe 11 at the top, the feeding pipe 11 extends to the outside of the air inlet duct 2, and a plug 111 is matched and installed at the top.

[0038] In the embodiment, after the plug 111 is removed, the solid desiccant can be added into the feeding pipe 11 through the funnel, and the solid desiccant is filled into the hygroscopic agent cavity 32.

[0039] A threaded hole 81 is formed in the outermost guide plate 8, the threaded hole 81 is in communication with a sliding groove on the guide plate 8 for sliding of the guide slide rod 7, and a positioning bolt 9 is arranged in the threaded hole 81.

[0040] In the embodiment, the positioning bolt 9 in the threaded hole 81 is tightened, and the end of the positioning bolt 9 is tightly abutted on the outer wall of the guide slide rod 7, so that the guide slide rod 7 is limited, and the first sealing plate 4 and the second sealing plate 5 in the hygroscopic agent cavity 32 are prevented from moving when the centrifugal fan body 1 starts to shake.

[0041] The ends of all the guide slide rods 7 are fixedly installed on the cooperative support 10.

[0042] In the embodiment, the cooperative support 10 is pushed, so that all the guide slide rods 7 are driven to slide with the guide plate 8, so that the saturated solid desiccant in all the hygroscopic agent cavities 32 can be pushed out at the same time.

[0043] The air inlet duct 2 is provided with operation windows 12 on both sides.

[0044] In the embodiment, after the operation windows 12 are opened, the cooperative support 10 can be pushed, and the positioning bolt 9 can be screwed.

[0045] The air inlet end of the air inlet duct 2 is provided with a plug rail groove 21, the inner wall of the plug rail groove 21 is provided with first positioning holes 211 which are symmetrically distributed upward and downward, a mounting frame 13 is detachably inserted into the plug rail groove 21, a dust screen 14 is fixedly arranged in the mounting frame 13, second positioning holes 131 are formed in the side wall of the mounting frame 13 and correspond to the positions of the first positioning holes 211, and a locking pin 15 penetrates and is inserted into the corresponding first positioning hole 211 and second positioning hole 131.

[0046] In the embodiment, after the mounting frame 13 is inserted into the air inlet end of the air inlet duct 2 along the plug-in groove 21, the first positioning hole 211 arranged on the inner wall of the plug-in groove 21 is aligned with the second positioning hole 131 arranged on the side wall of the mounting frame 13, then the plug-in locking pin 15 is penetrated and connected between the two, and the installation of the mounting frame 13 is completed. The dust screen 14 in the mounting frame 13 can filter dust in the air, and the dust screen 14 can be disassembled and cleaned in the same way, and the saturated solid desiccant pushed out of the desiccant cavity 32 can also be handled.

[0047] The above-described embodiments only express certain implementation manners of the utility model, the description is more specific and detailed, but it cannot be understood as the limitation of the utility model patent scope; it should be pointed out that for ordinary skilled persons in the art, under the premise of not departing from the utility model concept, a number of modifications and improvements can be made, which all belong to the protection scope of the utility model; therefore, the protection scope of the utility model patent should be subject to the appended claims.

[0048] It should be noted that the above content belongs to the technical cognition range of the inventor, and since the technical content in the field is vast and too complex, the above content of the present application does not necessarily constitute the prior art.

Claims

1. A laboratory corrosion-resistant centrifugal fan with a moisture-proof structure, characterized in that: It includes a centrifugal fan body (1) and an air inlet duct (2) connected to the air inlet therein, wherein a moisture-proof plate (3) is fixedly installed inside the air inlet duct (2) to form a sealing fit with its inner wall; The moisture-proof board (3) has multiple horizontally arranged diversion air ducts at its end, and the diversion air ducts are composed of guide air ducts (31) that are equally spaced along the vertical direction; A desiccant chamber (32) is provided between two adjacent diversion air ducts. The desiccant chamber (32) is filled with solid desiccant and is connected to the diversion air duct (31) through several breathable micropores (33).

2. A laboratory corrosion-resistant centrifugal fan with a moisture-proof structure according to claim 1, characterized in that: The desiccant chamber (32) is installed through the moisture-proof plate (3) along the airflow direction. At its two open ends, there are a first sealing plate (4) and a second sealing plate (5) that are sealed to their inner walls. The first sealing plate (4) and the second sealing plate (5) are rigidly connected by an axially arranged connecting column (6). A guide slide rod (7) is provided on the outside of the second sealing plate (5) near the air inlet of the centrifugal fan body (1). The guide slide rod (7) is slidably connected to the guide plate (8) provided in the air inlet duct (2).

3. A laboratory corrosion-resistant centrifugal fan with a moisture-proof structure according to claim 1, characterized in that: The desiccant chamber (32) is fixedly connected to the top of the feeding pipe (11), which extends to the outside of the air inlet duct (2) and is fitted with a plug (111) at the top.

4. A laboratory corrosion-resistant centrifugal fan with a moisture-proof structure according to claim 2, characterized in that: The outermost guide plate (8) has a threaded hole (81) which is connected to the slide groove on the guide plate (8) for the guide slide rod (7) to slide, and is equipped with a positioning bolt (9).

5. A laboratory corrosion-resistant centrifugal fan with a moisture-proof structure according to claim 4, characterized in that: All guide rods (7) are fixedly mounted on the cooperating bracket (10) at their ends.

6. A laboratory corrosion-resistant centrifugal fan with a moisture-proof structure according to claim 5, characterized in that: Both sides of the air inlet duct (2) are provided with operation windows (12).

7. A laboratory corrosion-resistant centrifugal fan with a moisture-proof structure according to claim 1, characterized in that: The air inlet end of the air inlet duct (2) is provided with a rail groove (21). The inner wall of the rail groove (21) is provided with first positioning holes (211) symmetrically distributed vertically, and a mounting frame (13) is detachably inserted. A dustproof net (14) is fixedly provided inside the mounting frame (13). The side wall of the mounting frame (13) is provided with a second positioning hole (131) corresponding to the position of the first positioning hole (211). The locking pin (15) passes through and is inserted into the corresponding first positioning hole (211) and second positioning hole (131).

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