Magnetic suspension oxidation fan

By introducing a filter assembly into the magnetic levitation oxidation blower, the problem of impurities wearing down the blades is solved, achieving impeller durability and convenient filter replacement.

CN223648083UActive Publication Date: 2025-12-09JINGNENG QINHUANGDAO THERMAL POWER CO LTD
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Patent Information

Application Number
CN202520079518.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-14
Publication Date
2025-12-09
Estimated Expiration
2035-01-14

AI Technical Summary

Technical Problem

Existing magnetic levitation fans lack air filtration mechanisms due to the presence of solid particulate impurities in the air. This causes severe friction between the impurities and the impeller surface, resulting in long-term wear and tear on the blades and affecting their service life.

Method used

A magnetic levitation oxidation fan, comprising a magnetic levitation fan body and a filter assembly, was designed. The filter assembly consists of a shaft column, a connecting member, a fixing frame, and an air filter. The fixing frame is connected to the shaft column through the connecting member, and the air filter is detachably installed in the fixing frame to filter the air and prevent impurities from entering the impeller.

Benefits of technology

It effectively prevents impurities from entering the impeller, reduces blade wear, extends the impeller's service life, and allows for air filter replacement without shutting down the machine.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223648083U_ABST
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Abstract

The utility model relates to the technical field of draught fans, in particular to a magnetic suspension oxidation draught fan which comprises a magnetic suspension draught fan body and a filter assembly, the filter assembly comprises a shaft column, a connecting component, a first fixing frame, a second fixing frame, an air filter screen and a fixing component, and the shaft column is fixedly connected with the magnetic suspension draught fan body and located on one side of the magnetic suspension draught fan body. The connecting component is installed on the shaft column, the first fixing frame and the second fixing frame are connected with the shaft column through the connecting component, the air filter screen is detachably connected with the first fixing frame and located in the first fixing frame, and the fixing component is installed on the magnetic suspension fan body. The problems that in the prior art, an air filtering mechanism is not arranged, impurities can generate violent friction with the surface of the impeller along with airflow, under the long-term action, the blade edge and surface of the impeller can be abraded, the blade shape and surface roughness are changed, and the service life of the impeller is affected are solved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to fan technical field especially relates to a kind of magnetic suspension oxidizing fan. BACKGROUND

[0002] In many fields of modern industry, such as sewage treatment, chemical industry, metallurgy, papermaking, etc., as the key gas conveying and oxygenation equipment, the oxidation fan shoulders the heavy responsibility of accurately and continuously conveying sufficient air to the reaction system, and its performance directly relates to the efficiency of the entire production process, product quality and operating cost. Traditional oxidation fan systems mostly use Roots blowers or centrifugal blowers. These blowers have problems such as mechanical friction, large vibration, high noise and low energy efficiency during operation, especially in the desulfurization system, as stable oxidation air flow needs to be continuously provided to ensure the desulfurization reaction. Traditional blowers often need to be continuously operated for a long time, which not only increases energy consumption, but also aggravates equipment wear and maintenance cost. Therefore, it is necessary to use magnetic suspension technology to realize contactless operation of the fan, thereby reducing mechanical friction and vibration and improving the energy efficiency and stability of the fan.

[0003] The prior art CN221838567U discloses a magnetic suspension fan, comprising: a volute, the volute is provided with an air inlet and an air outlet; an impeller, the impeller is arranged in the inner cavity of the volute; a magnetic suspension motor, the magnetic suspension motor is connected with the impeller, and the magnetic suspension motor drives the impeller to rotate; a cooling structure, the cooling structure is arranged on the magnetic suspension motor. The utility model belongs to the field of fans, and the utility model directly drives the impeller to rotate by using the magnetic suspension motor, thereby overcoming the technical problems of low motor speed and large number of high-pressure fan in the prior art. Moreover, the cooling structure is used to cool the magnetic suspension motor, thereby avoiding heat accumulation during rotation of the magnetic suspension motor and prolonging the service life of the utility model.

[0004] For the above-mentioned magnetic suspension fan, since the air contains solid particle impurities, the existing technology does not have an air filtering mechanism, and the impurities will produce intense friction with the surface of the impeller along with the airflow. Under the long-term effect, the edges and surfaces of the blades of the impeller will be worn, the shape and surface roughness of the blades will be changed, and the service life of the impeller will be affected. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a kind of magnetic suspension oxidizing fan, solve the problem that since air contains solid particle impurities, the existing technology does not have an air filtering mechanism, and the impurities will produce intense friction with the surface of the impeller along with the airflow. Under the long-term effect, the edges and surfaces of the blades of the impeller will be worn, the shape and surface roughness of the blades will be changed, and the service life of the impeller will be affected.

[0006] To achieve the above objectives, this utility model provides a magnetic levitation oxidation fan, including a magnetic levitation fan body and a filter assembly. The filter assembly includes a shaft column, a connecting member, a first fixing frame, a second fixing frame, an air filter, and a fixing member. The shaft column is fixedly connected to the magnetic levitation fan body and is located on one side of the magnetic levitation fan body. The connecting member is installed on the shaft column. The first fixing frame and the second fixing frame are both connected to the shaft column through the connecting member. The air filter is detachably connected to the first fixing frame and is located inside the first fixing frame. The fixing member is installed on the magnetic levitation fan body.

[0007] The connecting component includes a first bushing, a first connecting rod, a second bushing, and a second connecting rod. The first bushing is sleeved on the outside of the shaft post and rotatably connected to the shaft post. The two ends of the first connecting rod are fixedly connected to the first bushing and the first fixing frame, respectively. The second bushing is sleeved on the outside of the shaft post and rotatably connected to the shaft post. The two ends of the second connecting rod are fixedly connected to the second bushing and the second fixing frame, respectively.

[0008] The fixing component includes a positioning block, a clamping arm, a guide member, a clamping block, and a control member. The positioning block is fixedly connected to the magnetic levitation fan body and is located on the side of the magnetic levitation fan body closer to the first fixing frame. The clamping arm is connected to the magnetic levitation fan body through the guide member, which is installed on the magnetic levitation fan body and guides the movement of the clamping arm. The clamping block is fixedly connected to the clamping arm and is located at the end of the clamping arm closer to the first fixing frame. The control member controls the movement of the clamping arm.

[0009] The guide component includes a guide seat and a slide rod. The guide seat is fixedly connected to the magnetic levitation fan body and is located on the side of the magnetic levitation fan body near the clamping arm. The slide rod is slidably connected to the guide seat and fixedly connected to the clamping arm.

[0010] The control component includes a support frame and a control screw. The support frame is fixedly connected to the magnetic levitation fan body and is located on the side of the magnetic levitation fan body near the clamping arm. The control screw is rotatably connected to the support frame and threadedly connected to the clamping arm.

[0011] This utility model discloses a magnetic levitation oxidation fan, comprising a magnetic levitation fan body and a filter assembly. The filter assembly includes a shaft column, a connecting member, a first fixing frame, a second fixing frame, an air filter, and a fixing member. The shaft column is fixedly connected to the magnetic levitation fan body and located on one side of the magnetic levitation fan body. The connecting member is mounted on the shaft column. Both the first fixing frame and the second fixing frame are connected to the shaft column through the connecting member. The air filter is detachably connected to the first fixing frame and located within the first fixing frame. The fixing member is mounted on the magnetic levitation fan body. This invention solves the problem that due to solid particulate impurities in the air, and the lack of an air filtration mechanism in existing technologies, impurities will generate severe friction with the impeller surface as airflow occurs. Under long-term action, the blade edges and surfaces of the impeller will wear, changing the shape and surface roughness of the blades, thus affecting the service life of the impeller. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0013] Figure 1 This is a schematic diagram of the overall structure of the magnetic levitation oxidation fan of this utility model.

[0014] Figure 2 This is a structural schematic diagram of the connecting component of this utility model.

[0015] Figure 3 This is a structural schematic diagram of the fixing component of this utility model.

[0016] In the diagram: 101-Magnetic levitation fan body, 102-Shaft column, 103-First bushing, 104-First connecting rod, 105-Second bushing, 106-Second connecting rod, 107-First fixing frame, 108-Second fixing frame, 109-Air filter, 110-Positioning block, 111-Clamping arm, 112-Guide seat, 113-Slide rod, 114-Clamping block, 115-Support frame, 116-Control screw. Detailed Implementation

[0017] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0018] The embodiment of this application is as follows:

[0019] Please see Figures 1-3 , Figure 1 This is a schematic diagram of the overall structure of the magnetic levitation oxidation fan of this utility model. Figure 2This is a structural schematic diagram of the connecting component of this utility model. Figure 3 This is a structural schematic diagram of the fixing component of this utility model.

[0020] This utility model discloses a magnetic levitation oxidation fan, comprising a magnetic levitation fan body 101, a shaft column 102, a first shaft sleeve 103, a first connecting rod 104, a second shaft sleeve 105, a second connecting rod 106, a first fixing frame 107, a second fixing frame 108, an air filter 109, a positioning block 110, a clamping arm 111, a guide seat 112, a slide rod 113, a clamping block 114, a support frame 115, and a control screw 116. It solves the problem that due to solid particulate impurities in the air, and the lack of an air filtration mechanism in existing technologies, these impurities generate intense friction with the impeller surface as airflow occurs. Over time, this leads to wear on the impeller blade edges and surfaces, altering the blade shape and surface roughness, thus affecting the impeller's service life. It is understood that the aforementioned solution can also be used to improve the quality of oxidation reactions.

[0021] In this embodiment, the magnetic levitation fan body 101 is a prior art technology. The specific structure refers to a magnetic levitation fan in prior art CN221838567U. The filter assembly is installed on the magnetic levitation fan body 101, thereby achieving air filtration. This solves the problem that because the air contains solid particulate impurities, and the prior art does not have an air filtration mechanism, the impurities will generate severe friction with the impeller surface with the airflow. Under long-term action, the blade edges and surfaces of the impeller will wear, changing the shape and surface roughness of the blades, and affecting the service life of the impeller.

[0022] The shaft column 102 is fixedly connected to the magnetic levitation fan body 101 and located on one side of the magnetic levitation fan body 101. The connecting member is installed on the shaft column 102. The first fixing frame 107 and the second fixing frame 108 are both connected to the shaft column 102 through the connecting member. The air filter 109 is detachably connected to the first fixing frame 107 and located inside the first fixing frame 107. The fixing member is installed on the magnetic levitation fan body 101. The shaft column 102 is installed on the volute of the magnetic levitation fan body 101, near the air inlet of the magnetic levitation fan body 101. The connecting member serves to connect the first fixing frame 107 and the second fixing frame 108 to the shaft column 102, allowing the first fixing frame 107 and the second fixing frame 108 to rotate around the shaft column 102. Both the first fixing frame 107 and the second fixing frame 108 are circular. The air filter 109 is shaped like a clamp and is used to fix the air filter 109. The air filter 109 is woven from glass fiber filaments and is circular in shape with a skeleton on the outer periphery. The air filter 109 can be installed on either the first fixing frame 107 or the second fixing frame 108. The air filter 109 can filter dust, sand, metal debris and other impurities in the air, preventing these impurities from entering the volute of the magnetic levitation fan body 101. The fixing component is used to fix the first fixing frame 107 and the second fixing frame 108. By setting the filter component on the magnetic levitation fan body 101, air filtration can be achieved. This solves the problem that when there are solid particulate impurities in the air, and the existing technology does not have an air filtration mechanism, the impurities will generate severe friction with the impeller surface with the airflow. Under long-term action, the blade edges and surfaces of the impeller will wear, changing the shape and surface roughness of the blades and affecting the service life of the impeller.

[0023] Secondly, the first bushing 103 is sleeved on the outside of the shaft post 102 and rotatably connected to the shaft post 102; both ends of the first connecting rod 104 are fixedly connected to the first bushing 103 and the first fixing frame 107, respectively; the second bushing 105 is sleeved on the outside of the shaft post 102 and rotatably connected to the shaft post 102; both ends of the second connecting rod 106 are fixedly connected to the second bushing 105 and the second fixing frame 108, respectively. The first bushing 103 is sleeved on the shaft post 102 through a bearing and can be self-supporting. Due to rotation, the first connecting rod 104 is used to connect the first bushing 103 and the first fixing frame 107. The second bushing 105 is also sleeved on the shaft column 102 through a bearing. The second connecting rod 106 is used to connect the second bushing 105 and the second fixing frame 108. Through the first bushing 103, the first connecting rod 104, the second bushing 105 and the second connecting rod 106, the first fixing frame 107 and the second fixing frame 108 can both rotate around the shaft column 102.

[0024] Meanwhile, the positioning block 110 is fixedly connected to the magnetic levitation fan body 101 and is located on the side of the magnetic levitation fan body 101 near the first fixing frame 107; the clamping arm 111 is connected to the magnetic levitation fan body 101 through the guide member, the guide member is installed on the magnetic levitation fan body 101, and guides the movement of the clamping arm 111; the clamping block 114 is fixedly connected to the clamping arm 111 and is located at the end of the clamping arm 111 near the first fixing frame 107; the control member controls the movement of the clamping arm 111; the positioning block 110 is an arc-shaped plate, set at the bottom of the air inlet of the magnetic levitation fan body 101, used to position the first fixing frame 107 and the second fixing frame 108; the clamping arm 111 is arc-shaped, and the number of... Two clamping arms 111 are symmetrically arranged on both sides of the air inlet of the magnetic levitation fan body 101 via two sets of guide members. The guide members can guide the movement of the clamping arms 111. The clamping blocks 114 are arc-shaped blocks, two in number, and are respectively installed on the top of the two clamping arms 111. The clamping blocks 114 are provided with positioning pins. The first fixing frame 107 and the second fixing frame 108 are provided with insertion holes at positions corresponding to the clamping blocks 114. The positioning pins can be inserted into the insertion holes. The control component is used to control the synchronous movement of the two clamping arms 111, so that the two clamping blocks 114 can clamp the first fixing frame 107 and the second fixing frame 108. Through the fixing components, the clamping and fixing of the first fixing frame 107 and the second fixing frame 108 can be realized.

[0025] In addition, the guide seat 112 is fixedly connected to the magnetic levitation fan body 101 and is located on the side of the magnetic levitation fan body 101 near the clamping arm 111; the slide rod 113 is slidably connected to the guide seat 112 and fixedly connected to the clamping arm 111. The guide seat 112 is horizontally arranged on the magnetic levitation fan body 101, and the slide rod 113 passes through the guide seat 112 and is slidably connected to the guide seat 112. Its end is fixedly connected to the clamping arm 111. Through the guide seat 112 and the slide rod 113, the clamping arm 111 is guided.

[0026] Finally, the support frame 115 is fixedly connected to the magnetic levitation fan body 101 and is located on the side of the magnetic levitation fan body 101 near the clamping arm 111; the control screw 116 is rotatably connected to the support frame 115 and threadedly connected to the clamping arm 111. The control screw 116 is a bidirectional screw with opposite thread directions at both ends. The support frame 115 has a bearing inside. There are two support frames 115, which are respectively located at both ends of the control screw 116. The control screw 116 passes through the support frame 115 and is fixedly connected to the inner ring of the bearing. Both clamping arms 111 have threaded through holes. The two clamping arms 111 are respectively sleeved on both ends of the control screw 116 through the threaded through holes. By turning the control screw 116, the two clamping arms 111 can be driven to move synchronously in opposite directions.

[0027] In this embodiment, the air filter 109 can be arbitrarily installed on the first fixed frame 107 or the second fixed frame 108. The air filter 109 can filter the air entering the volute of the magnetic levitation fan body 101, thereby preventing impurities from affecting the impeller. Both the first fixing bracket 107 and the second fixing bracket 108 are provided with handles at offset positions. For example, when the air filter 109 is installed on the first fixing bracket 107 and needs to be replaced, the control screw 116 is turned so that the two clamping blocks 114 open simultaneously. At this time, both the first fixing bracket 107 and the second fixing bracket 108 are in the unlocked state. Then, the second fixing bracket 108 is rotated so that it rotates out from the air inlet of the magnetic levitation fan body 101. The new air filter 109 is installed on the second fixing bracket 108. After that, the second fixing bracket 108 is returned to the air inlet. Then, the first fixing bracket 107 is rotated out to remove the old air filter 109. Then, the first fixing bracket 107 is returned to the air inlet. Finally, the control screw 116 is tightened so that the two clamping blocks 114 clamp the first fixing bracket 107 and the second fixing bracket 108. This application achieves air filtration through the air filter 109, and allows for air filter replacement without shutting down the machine. This solves the problem that when solid particulate impurities are present in the air, and existing technologies lack air filtration mechanisms, these impurities will generate severe friction with the impeller surface as airflow occurs. Over time, this causes wear on the blade edges and surfaces, altering the blade shape and surface roughness, and affecting the impeller's service life.

[0028] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A magnetic levitation oxidation fan, comprising a magnetic levitation fan body, characterized in that, It also includes filtering components; The filtration assembly includes a shaft column, a connecting member, a first fixing frame, a second fixing frame, an air filter, and a fixing member. The shaft column is fixedly connected to the magnetic levitation fan body and is located on one side of the magnetic levitation fan body. The connecting member is installed on the shaft column. The first fixing frame and the second fixing frame are both connected to the shaft column through the connecting member. The air filter is detachably connected to the first fixing frame and is located inside the first fixing frame. The fixing member is installed on the magnetic levitation fan body.

2. The magnetic levitation oxidation fan as described in claim 1, characterized in that, The connecting component includes a first bushing, a first connecting rod, a second bushing, and a second connecting rod. The first bushing is sleeved on the outside of the shaft post and rotatably connected to the shaft post. The two ends of the first connecting rod are fixedly connected to the first bushing and the first fixing frame, respectively. The second bushing is sleeved on the outside of the shaft post and rotatably connected to the shaft post. The two ends of the second connecting rod are fixedly connected to the second bushing and the second fixing frame, respectively.

3. The magnetic levitation oxidation fan as described in claim 1, characterized in that, The fixing component includes a positioning block, a clamping arm, a guide member, a clamping block, and a control member. The positioning block is fixedly connected to the magnetic levitation fan body and is located on the side of the magnetic levitation fan body closer to the first fixing frame. The clamping arm is connected to the magnetic levitation fan body through the guide member, which is installed on the magnetic levitation fan body and guides the movement of the clamping arm. The clamping block is fixedly connected to the clamping arm and is located at the end of the clamping arm closer to the first fixing frame. The control member controls the movement of the clamping arm.

4. The magnetic levitation oxidation fan as described in claim 3, characterized in that, The guide component includes a guide seat and a slide rod. The guide seat is fixedly connected to the magnetic levitation fan body and is located on the side of the magnetic levitation fan body near the clamping arm. The slide rod is slidably connected to the guide seat and fixedly connected to the clamping arm.

5. The magnetic levitation oxidation fan as described in claim 3, characterized in that, The control component includes a support frame and a control screw. The support frame is fixedly connected to the magnetic levitation fan body and is located on the side of the magnetic levitation fan body near the clamping arm. The control screw is rotatably connected to the support frame and threadedly connected to the clamping arm.

Citation Information

Patent Citations

  • Magnetic suspension fan

    CN221838567U