Titanium palladium centrifugal fan for acid regeneration

Abstract

The utility model relates to a titanium-palladium centrifugal fan for acid regeneration, which comprises a machine shell, an air outlet, an air inlet, an air outlet, an air outlet, a fan, a fan blade and a fan blade, and is characterized in that the machine shell is provided with an air outlet; the impeller is arranged in the machine shell; the front cover plate is arranged on the side, close to the opening, of the machine shell; the air inlet is formed in the front cover plate; the connecting part is arranged between the machine shell and the front cover plate, a through hole corresponding to the opening is formed in the connecting part, a plane attached to the front cover plate is arranged on the side, close to the front cover plate, of the connecting part, and a plurality of screw holes are formed in the plane; the welding part is arranged between the connecting part and the machine shell, and the welding part is connected with the connecting part and the machine shell; according to the fan, the welding part and the mounting part are arranged on the shell, so that a gap can be prevented from being generated when the front cover plate and the shell are mounted, harmful waste gas can be prevented from leaking through the gap in the shell, the sealing performance and safety during operation of the fan can be ensured, the harmful waste gas is prevented from leaking to pollute the environment, and the practicability is high.

Description

Technical Field

[0001] The present application relates to the technical field of fans, and in particular to a titanium-palladium centrifugal fan for acid regeneration. Background Art

[0002] At present, in acid regeneration projects, waste gas with high acid content usually needs to be transported between various treatment equipment through centrifugal fans. In related technologies, a fan front cover is provided on the side of the centrifugal fan casing close to the opening, and the front cover is mainly connected and fixed to the fan casing by screws.

[0003] However, the side of the fan casing close to the front cover is generally cut from a whole plate, and the surface is uneven, making it difficult to ensure flatness. As a result, when the front cover is installed, a gap will be created between the front cover and the casing, causing leakage of harmful exhaust gas. At the same time, the bolts on the front cover are generally directly connected to the casing and fixed thereto. In this way, there will be holes on the casing, and gaps will appear in the threaded connection between the bolts and the casing. Harmful exhaust gas will leak out from these gaps, which will not only pollute the environment, but also cause damage to the health of the staff, which is very inconvenient.

[0004] In view of the above problems, a titanium-palladium centrifugal blower for acid regeneration is now designed. Utility Model Content

[0005] The embodiment of the present application provides a titanium-palladium centrifugal fan for acid regeneration to solve the problem in the related art that the centrifugal fan has poor sealing effect, gaps will appear on the casing, and harmful exhaust gas will leak, which will not only pollute the environment but also cause harm to the health of the workers.

[0006] In a first aspect, a titanium-palladium centrifugal blower for acid regeneration is provided, comprising:

[0007] A casing, wherein an air outlet is provided on the casing, and an opening is provided on one side of the casing;

[0008] an impeller disposed in the casing;

[0009] A front cover plate, which is arranged on a side of the casing close to the opening;

[0010] An air inlet, which is arranged on the front cover;

[0011] A connecting portion, which is arranged between the housing and the front cover, the connecting portion is provided with a through hole corresponding to the opening, a plane that fits the front cover is provided on one side of the connecting portion close to the front cover, and a plurality of screw holes are provided on the plane;

[0012] The welding part is arranged between the connecting part and the casing, and the welding part is connected to the connecting part and the casing.

[0013] In some embodiments, the connecting portion is in a circular ring shape, and the ratio of the inner diameter of the connecting portion to the outer diameter of the connecting portion is in the range of 1:1.05 and 1:1.2.

[0014] In some embodiments, the connecting portion includes a connecting tube and a mounting ring, the connecting tube is arranged on the welding portion, the mounting ring is arranged on a side of the connecting tube close to the front cover plate to form a plane, the mounting ring is sleeved on the connecting tube, and the screw hole is opened on the mounting ring.

[0015] In some embodiments, a plurality of reinforcing plates are further included. The reinforcing plates are arranged on the casing and connected to the connecting pipe and the mounting ring. The plurality of reinforcing plates are evenly distributed on the casing in a ring shape.

[0016] In some embodiments, the casing, impeller, front cover plate, air inlet and connecting part are all made of titanium-palladium alloy material.

[0017] Some embodiments further include a driving assembly and a base, wherein the base is disposed at the lower end of the housing;

[0018] The drive assembly is arranged on a side of the casing away from the opening, and the drive assembly includes a motor, a coupling, a main shaft and a bearing box. The bearing box is arranged on a base, the main shaft passes through the bearing box and is rotatably connected thereto, the main shaft is connected to an impeller, and the motor is arranged on a base, the motor is located on a side of the main shaft away from the casing, and the motor is connected to the main shaft through a coupling.

[0019] In some embodiments, the impeller includes an impeller body, a shaft disc, a sealing plate, a screw, a first through groove and a second through groove, the shaft disc is arranged on the side of the impeller body away from the opening, the first through groove is opened on the side of the shaft disc close to the opening, the second through groove is opened on the side of the shaft disc away from the opening, the second through groove is communicated with the first through groove, the diameter of the first through groove is larger than the diameter of the second through groove, a connecting shaft is provided at one end of the main shaft close to the casing, the connecting shaft is slidably arranged in the second through groove, the diameter of the connecting shaft is smaller than the diameter of the main shaft, the sealing plate is arranged in the first through groove, the screw is arranged in the first through groove, and the screw passes through the sealing plate and is threadedly connected to the connecting shaft.

[0020] In some embodiments, a cover plate and a sealing ring are further included. The cover plate is arranged at one end of the shaft disc close to the first through groove, the sealing ring is arranged between the cover plate and the shaft disc, and the cover plate is fixed to the shaft disc by welding.

[0021] The beneficial effects of the technical solution provided by this application include:

[0022] 1. The present application can connect the connection part with the casing through the welding part, and fit the front cover plate with the plane on the connection part, which can not only ensure the sealing of the connection between the front cover plate and the casing, but also avoid the gap between the front cover plate and the connection part. At the same time, the bolts do not need to penetrate the casing, which can reduce the gap on the casing. In this way, it can avoid the leakage of harmful exhaust gas through the gap on the casing, ensure the sealing and safety of the fan during operation, and avoid the leakage of harmful exhaust gas to pollute the environment and endanger the health of the staff;

[0023] 2. This application uses titanium-palladium alloy as the manufacturing material of the fan, which can reduce the corrosion of the fan by acid-containing exhaust gas, thereby enhancing the overall strength and service life of the centrifugal fan, and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 A schematic diagram of a three-dimensional structure provided in an embodiment of the present application;

[0026] Figure 2 A schematic diagram of a three-dimensional structure provided in an embodiment of the present application;

[0027] Figure 3 A schematic diagram of a three-dimensional explosion structure provided in an embodiment of the present application;

[0028] Figure 4 A schematic diagram of the three-dimensional structure of the connection portion provided in an embodiment of the present application;

[0029] Figure 5 A schematic diagram of a cross-sectional structure provided in an embodiment of the present application;

[0030] Figure 6 Provided in the embodiments of this application Figure 5 A schematic diagram of the enlarged structure at A in the middle;

[0031] Figure 7 Provided in the embodiments of this application Figure 5 Schematic diagram of the enlarged structure at point B in the middle.

[0032] In the figure: 1. casing; 11. air outlet; 12. opening; 2. impeller; 21. impeller body; 22. shaft disc; 23. sealing plate; 24. screw; 25. first through groove; 26. second through groove; 27. cover plate; 28. sealing ring; 3. front cover plate; 4. air inlet; 5. connecting part; 51. through hole; 52. plane; 53. screw hole; 54. connecting pipe; 55. mounting ring; 56. reinforcing plate; 6. driving assembly; 61. motor; 62. coupling; 63. main shaft; 631. connecting shaft; 64. bearing box; 7. base; 8. welding part. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0034] The embodiment of the present application provides a titanium-palladium centrifugal fan for acid regeneration, which can solve the problem in the related art that the centrifugal fan has poor sealing effect, gaps will appear on the casing, and harmful exhaust gas will leak, which will not only pollute the environment but also cause harm to the health of the workers.

[0035] See also Figure 1-Figure 7 A titanium-palladium centrifugal fan for acid regeneration, comprising: a casing 1, an impeller 2, a front cover plate 3, an air inlet 4, a connecting portion 5 and a welding portion 8, wherein the casing 1 is provided with an air outlet 11, one side of the casing 1 is provided with an opening 12, the impeller 2 is arranged in the casing 1, the front cover plate 3 is arranged on a side of the casing 1 close to the opening 12, and the air inlet 4 is arranged on the front cover plate 3;

[0036] The connecting portion 5 is provided between the housing 1 and the front cover 3, and a through hole 51 corresponding to the opening 12 is provided on the connecting portion 5. A plane 52 that fits the front cover 3 is provided on the side of the connecting portion 5 close to the front cover 3, and a plurality of screw holes 53 are provided on the plane 52. The welding portion 8 is provided between the connecting portion 5 and the housing 1, and the welding portion 8 is connected to the connecting portion 5 and the housing 1.

[0037] In this way, when producing the centrifugal fan, the connecting portion 5 can be placed on the casing 1 first, and then the connecting portion 5 and the casing 1 are fixedly connected together through the welding portion 8;

[0038] It should be noted that the welding portion 8 is formed by manual welding. Since the surface of the casing 1 is uneven, a gap will be generated between the connecting portion 5 and the casing 1. In this way, when the connecting portion 5 and the casing 1 are welded together, the staff can manually fill the gap between the connecting portion 5 and the casing 1 with molten iron during the welding process, thereby ensuring the sealing of the connection between the connecting portion 5 and the casing 1.

[0039] Then, when installing the front cover plate 3, the front cover plate 3 can be placed close to the plane 52, and then connected to the front cover plate 3 by passing the bolts through the screw holes 53, so that the front cover plate 3 can be fixed on the connecting portion 5 and the sealing between the front cover plate 3 and the plane 52 can be ensured;

[0040] During actual installation, a sealing ring may be installed between the front cover plate 3 and the plane 52 to further enhance the sealing effect between the front cover plate 3 and the plane 52;

[0041] At the same time, by connecting the front cover plate 3 and the connecting part 5 together with bolts, the bolts do not need to penetrate the casing 1, thereby minimizing the gaps on the casing 1, thereby preventing harmful exhaust gas from leaking through the gaps on the casing 1, thereby ensuring the sealing and safety of the fan during operation, preventing harmful exhaust gas from leaking and polluting the environment, and endangering the health of workers, and having strong practicality.

[0042] See also Figure 4 Specifically, in this embodiment, the connecting portion 5 is annular, and the ratio of the inner diameter of the connecting portion 5 to the outer diameter of the connecting portion 5 is within the range of 1:1.05 and 1:1.2;

[0043] In this way, it can be ensured that the connecting part 5 can be connected to the front cover plate 3 to ensure the sealing of the casing 1, while minimizing the area of ​​the connecting part 5. The smaller the area of ​​the connecting part 5 is, the better the flatness of the plane 52 can be controlled and guaranteed during processing, avoiding the area of ​​the connecting part 5 being too large to affect the flatness of the plane 52. At the same time, it can also save materials and facilitate use.

[0044] More specifically, the connecting portion 5 includes a connecting pipe 54 and a mounting ring 55. The connecting pipe 54 is provided on the welding portion 8. The mounting ring 55 is provided on a side of the connecting pipe 54 close to the front cover plate 3 to form a plane 52. The mounting ring 55 is sleeved on the connecting pipe 54. The screw hole 53 is provided on the mounting ring 55.

[0045] In this way, when processing the fan, the mounting ring 55 can be welded to the connecting pipe 54 first, and then the connecting pipe 54 can be welded to the casing 1, and then the front cover plate 3 can be fixed to the mounting ring 55 by bolts, and the sealing ring can be placed between the front cover plate 3 and the mounting ring 55. In this way, the gap on the fan can be reduced, thereby ensuring the sealing of the fan.

[0046] It also includes a plurality of reinforcing plates 56, which are arranged on the housing 1 and connected to the connecting pipe 54 and the mounting ring 55, and the plurality of reinforcing plates 56 are evenly distributed on the housing 1 in a ring shape;

[0047] In this way, the overall structural strength of the casing 1, the connecting pipe 54 and the mounting ring 55 can be enhanced, and a plurality of reinforcing ribs are also provided on the side of the casing 1 away from the opening 12, which can further enhance the structural strength of the casing 1 and prevent the centrifugal fan from deforming during use, thereby ensuring the service life of the centrifugal fan.

[0048] Preferably, the housing 1, the impeller 2, the front cover 3, the air inlet 4 and the connecting part 5 are all made of titanium-palladium alloy material;

[0049] Titanium-palladium alloy [TA8 (Gr16)] has comprehensive mechanical properties such as high melting point, non-magnetic, low thermal expansion coefficient, high specific strength (ratio of the strength of the material to its density) and specific stiffness (ratio of the elastic modulus of the material to its density), and titanium-palladium alloy has good corrosion resistance;

[0050] In this way, when the waste gas with a high acid content is transported through the centrifugal fan, the corrosion of the waste gas to the fan can be reduced, thereby enhancing the overall strength and service life of the centrifugal fan and facilitating its use.

[0051] Furthermore, in this embodiment, a driving assembly 6 and a base 7 are also included, and the base 7 is arranged at the lower end of the housing 1;

[0052] A plurality of shock absorbers are provided at the lower end of the base 7, so that when the centrifugal fan is running, the vibration of the centrifugal fan can be reduced, and the loosening of some parts caused by long-term severe vibration of the centrifugal fan can be avoided, thereby ensuring the service life of the fan;

[0053] At the same time, the shock absorber can also prevent the vibration generated during the operation of the fan from being directly transmitted to the ground, thereby reducing the noise generated by the fan operation and facilitating use.

[0054] The driving assembly 6 is arranged on a side of the casing 1 away from the opening 12, and the driving assembly 6 comprises a motor 61, a coupling 62, a main shaft 63 and a bearing box 64, wherein the bearing box 64 is arranged on the base 7, the main shaft 63 passes through the bearing box 64 and is rotatably connected thereto, the main shaft 63 is connected to the impeller 2, the motor 61 is arranged on the base 7, the motor 61 is located on a side of the main shaft 63 away from the casing 1, and the motor 61 is connected to the main shaft 63 via the coupling 62;

[0055] In this way, when the centrifugal fan is needed, the motor 61 can be started to drive the main shaft 63 to rotate through the coupling 62. At the same time, the main shaft 63 can be supported by the bearing box 64, so that the main shaft 63 will drive the impeller 2 to rotate, thereby transporting harmful exhaust gas.

[0056] See also Figure 7 Furthermore, the impeller 2 includes an impeller body 21, a shaft disc 22, a sealing plate 23, a screw 24, a first through slot 25 and a second through slot 26. The shaft disc 22 is arranged on a side of the impeller body 21 away from the opening 12, the first through slot 25 is arranged on a side of the shaft disc 22 close to the opening 12, and the second through slot 26 is arranged on a side of the shaft disc 22 away from the opening 12;

[0057] The second through slot 26 is communicated with the first through slot 25, the diameter of the first through slot 25 is larger than the diameter of the second through slot 26, the end of the main shaft 63 close to the housing 1 is provided with a connecting shaft 631, the connecting shaft 631 is slidably arranged in the second through slot 26, the diameter of the connecting shaft 631 is smaller than the diameter of the main shaft 63, the sealing plate 23 is arranged in the first through slot 25, the screw 24 is arranged in the first through slot 25, the screw 24 passes through the sealing plate 23 and is threadedly connected with the connecting shaft 631;

[0058] In this way, when the fan is produced, the connecting shaft 631 can be inserted into the second through groove 26, and then the screw 24 penetrates the sealing plate 23 and is threadedly connected to the connecting shaft 631, thereby fixing the sealing plate 23 and the connecting shaft 631 together;

[0059] At the same time, since the diameter of the main shaft 63 is larger than the diameter of the connecting shaft 631, the two sides of the connecting shaft 631 are fixed in the second through groove 26 by the limiting effect of the main shaft 63 and the sealing plate 23, thereby preventing the connecting shaft 631 from being separated from the shaft disc 22 after the fan has been running for a long time, thereby ensuring the service life of the fan;

[0060] At the same time, the connecting shaft 631 can be shielded by the sealing plate 23, so as to avoid the acid-containing waste gas from contacting the connecting shaft 631, which would cause the connecting shaft 631 to be corroded and affect its service life, and the utility model is strong.

[0061] Preferably, it further comprises a cover plate 27 and a sealing ring 28, wherein the cover plate 27 is disposed at one end of the shaft disc 22 close to the first through groove 25, and the sealing ring 28 is disposed between the cover plate 27 and the shaft disc 22, and the cover plate 27 is fixed to the shaft disc 22 by welding;

[0062] After the main shaft 63 is installed, the sealing ring 28 can be placed between the cover plate 27 and the first through groove 25, and then the cover plate 27 is pressed toward the first through groove 25 to make the cover plate 27 close to the shaft disc 22;

[0063] Then the staff can weld and fix the cover plate 27 on the shaft disc 22, so as to enclose the connecting shaft 631 in the shaft disc 22, so that the connecting shaft 631 can be shielded and protected by the cover plate 27;

[0064] This prevents acid-containing waste gas from entering the first through groove 25 and contacting the screw 24 and the connecting shaft 631, thereby corroding the screw 24 and the connecting shaft 631 and affecting the service life of the connecting fan, thereby facilitating use.

[0065] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0066] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0067] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A titanium-palladium centrifugal fan for acid regeneration, characterized in that: It includes: A casing (1), wherein an air outlet (11) is provided on the casing (1), and an opening (12) is provided on one side of the casing (1); An impeller (2) is disposed in the casing (1); A front cover plate (3) disposed on a side of the housing (1) close to the opening (12); An air inlet (4) is provided on the front cover (3); A connecting portion (5) is provided between the housing (1) and the front cover (3), the connecting portion (5) being provided with a through hole (51) corresponding to the opening (12), a plane (52) in contact with the front cover (3) being provided on a side of the connecting portion (5) close to the front cover (3), the plane (52) being provided with a plurality of screw holes (53); A welding portion (8) is provided between the connecting portion (5) and the casing (1), and the welding portion (8) is connected to the connecting portion (5) and the casing (1).

2. A titanium-palladium centrifugal blower for acid regeneration according to claim 1, characterized in that: The connecting portion (5) is in the shape of a ring, and the ratio of the inner diameter of the connecting portion (5) to the outer diameter of the connecting portion (5) is 1: The range is between 1:05 and 1:1.

2.

3. A titanium-palladium centrifugal blower for acid regeneration according to claim 1, characterized in that: The connecting portion (5) comprises a connecting pipe (54) and a mounting ring (55); the connecting pipe (54) is arranged on the welding portion (8); the mounting ring (55) is arranged on a side of the connecting pipe (54) close to the front cover plate (3) to form a plane (52); the mounting ring (55) is sleeved on the connecting pipe (54); and the screw hole (53) is provided on the mounting ring (55).

4. A titanium-palladium centrifugal blower for acid regeneration according to claim 3, characterized in that: It also comprises a plurality of reinforcing plates (56), which are arranged on the casing (1) and connected to the connecting pipe (54) and the mounting ring (55), and the plurality of reinforcing plates (56) are evenly distributed on the casing (1) in a ring shape.

5. A titanium-palladium centrifugal blower for acid regeneration according to claim 1, characterized in that: The casing (1), the impeller (2), the front cover plate (3), the air inlet (4) and the connecting part (5) are all made of titanium-palladium alloy material.

6. A titanium-palladium centrifugal blower for acid regeneration according to claim 1, characterized in that: It also includes a driving assembly (6) and a base (7), wherein the base (7) is arranged at the lower end of the housing (1); The drive assembly (6) is arranged on a side of the casing (1) away from the opening (12), and comprises a motor (61), a coupling (62), a main shaft (63) and a bearing box (64); the bearing box (64) is arranged on a base (7); the main shaft (63) passes through the bearing box (64) and is rotatably connected thereto; the main shaft (63) is connected to the impeller (2); the motor (61) is arranged on the base (7); the motor (61) is located on a side of the main shaft (63) away from the casing (1); and the motor (61) is connected to the main shaft (63) via the coupling (62).

7. A titanium-palladium centrifugal blower for acid regeneration according to claim 6, characterized in that: The impeller (2) comprises an impeller body (21), a shaft disc (22), a sealing plate (23), a screw (24), a first through groove (25) and a second through groove (26); the shaft disc (22) is arranged on a side of the impeller body (21) away from the opening (12); the first through groove (25) is arranged on a side of the shaft disc (22) close to the opening (12); the second through groove (26) is arranged on a side of the shaft disc (22) away from the opening (12); the second through groove (26) is communicated with the first through groove (25); The diameter of the first through groove (25) is greater than the diameter of the second through groove (26); a connecting shaft (631) is provided at one end of the main shaft (63) close to the housing (1); the connecting shaft (631) is slidably arranged in the second through groove (26); the diameter of the connecting shaft (631) is smaller than the diameter of the main shaft (63); the sealing plate (23) is arranged in the first through groove (25); the screw (24) is arranged in the first through groove (25); the screw (24) passes through the sealing plate (23) and is threadedly connected to the connecting shaft (631).

8. A titanium-palladium centrifugal blower for acid regeneration according to claim 7, characterized in that: It also includes a cover plate (27) and a sealing ring (28), wherein the cover plate (27) is arranged at one end of the shaft disc (22) close to the first through groove (25), and the sealing ring (28) is arranged between the cover plate (27) and the shaft disc (22), and the cover plate (27) and the shaft disc (22) are fixed by welding.

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