Novel air pre-heater rotor

Abstract

The utility model discloses a novel air pre-heater rotor, and relates to the technical field of air pre-heater rotors. The novel air pre-heater rotor comprises a rotor body, a shaft sleeve is rotationally arranged at the center of the rotor body, a center shaft is arranged in the shaft sleeve, a plurality of radial partition plates are arranged on the outer surface of the shaft sleeve in a circumferential array mode, and a plurality of annular partition plates are fixedly welded between every two adjacent radial partition plates at equal intervals; and the connecting assembly is used for connecting the central shaft with the shaft sleeve, and the connecting assembly comprises a connecting pipe fixedly arranged on the inner wall of the shaft sleeve. According to the novel air pre-heater rotor, through the arrangement of the connecting assembly, when the air pre-heater rotor is used for installing the rotor body, rapid connection of the center shaft and the shaft sleeve can be achieved, meanwhile, the steps can be reversely operated when the rotor body is disassembled, and then the purpose of rapidly installing and disassembling the rotor body can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of air preheater rotors, in particular to a novel air preheater rotor. Background Art

[0002] Air preheaters are generally divided into three types: plate type, rotary type and tube type. The existing patent is a new type of sealing device for preventing air leakage of air preheater rotors. The patent publication number is CN113803740A, which includes a heat transfer element. The heat transfer element is provided with an inner partition groove inside. The inner partition groove is provided with a self-expanding sealing component. The self-expanding sealing component includes an upper metal sheet and a lower metal sheet. A connecting block is welded between the upper metal sheet and the lower metal sheet. The outer ends of the upper metal sheet and the lower metal sheet are fixedly connected with a support plate. The outer side of the support plate is fixedly connected to the rear side sealing plate. When the upper metal sheet and the lower metal sheet are heated, the lower metal sheet and the upper metal sheet bend upward, so that the upper metal sheet and the lower metal sheet support the side edge of the heat transfer element through the support plate and the side sealing plate, so that it is offset by the downward deformation stress of the heat transfer element, thereby reducing the deformation of the heat transfer element in a high temperature environment, avoiding mushroom-shaped deformation, and improving the sealing effect.

[0003] With respect to the above-mentioned related technologies, the inventors believe that the following defects exist: in the above-mentioned patent technology, the position between the center shaft and the rotor is fixed. When the rotor needs to be replaced and maintained separately, or needs to be disassembled and installed, it needs to be replaced together with the center shaft, resulting in increased costs. That is, the technical solution proposed by the above-mentioned patent technology has the defect that the installation and disassembly of the center shaft and the rotor are relatively cumbersome.

[0004] So we proposed a new type of air preheater rotor to solve the above problems. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a novel air preheater rotor, which solves the problem of complicated disassembly and installation of the rotor body in the prior art.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a new type of air preheater rotor, including:

[0007] The rotor body has a shaft sleeve rotatably arranged at the center of the rotor body, and a central axis is arranged inside the shaft sleeve, and a plurality of radial partitions are arranged in a circular array on the outer surface of the shaft sleeve, and a plurality of annular partitions are welded and fixed equidistantly between two adjacent radial partitions, so that the modular cell structure is changed from a full-modular cell structure to a semi-modular cell structure, so that the rotor is more evenly deformed by heat and prevents the generation of additional internal forces. After years of technological accumulation, the new air preheater has eliminated various weak links, has mature technology, excellent overall performance, and can eliminate rotor cracks.

[0008] A connecting assembly is used to connect the central shaft with the sleeve, the connecting assembly includes a connecting tube fixedly mounted on the inner wall of the sleeve, the central shaft is slidably connected to the inner wall of the connecting tube, a limiting plate is fixedly mounted on the outer surface of the central shaft at the bottom end of the connecting tube, and a detachable fixing sleeve is disposed on the outer surface of the central shaft at the top end of the connecting tube.

[0009] Preferably, four threaded connection columns are fixedly provided in a circumferential array on the upper surface of the limiting plate, and connection holes corresponding to the four threaded connection columns and slidably connected to the outer surfaces of the threaded connection columns are opened in a circumferential array inside the tube body of the connecting tube.

[0010] Preferably, four nuts are arranged at the top end of the connecting pipe in a circular array, and the inner annular surfaces of the four nuts are threadedly connected to the outer surfaces of four threaded connecting columns respectively.

[0011] Preferably, the inner annular surface of the fixing sleeve is provided with a thread, and the top outer surface of the connecting pipe is provided with a thread groove threadably connected to the thread.

[0012] Preferably, a heat dissipation ring plate is fixedly provided on the outer ring surface of the rotor body, and a plurality of heat dissipation holes are evenly spaced in a circular array on the outer surface of the heat dissipation ring plate, which can facilitate heat dissipation of the rotor body.

[0013] Preferably, a plurality of the radial partitions and a plurality of the annular partitions form a compartment inside the rotor body, and the materials of the radial partitions and the annular partitions are both Q355B steel plates, which can effectively enhance the rigidity of the rotor and improve its service life.

[0014] Beneficial Effects

[0015] The utility model provides a new type of air preheater rotor. Compared with the prior art, it has the following beneficial effects:

[0016] The novel air preheater rotor is provided with a connection assembly so that when the air preheater rotor is installed, the central shaft and the sleeve can be quickly connected. When disassembling, the above steps can be reversed, thereby achieving the purpose of quickly installing and disassembling the rotor body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the utility model when viewed from above;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the shaft sleeve and the central shaft of the utility model;

[0020] Figure 4 For this utility model Figure 3 The enlarged structural diagram at A in the middle;

[0021] Figure 5 For this utility model Figure 3 Enlarged structural diagram at B in the middle.

[0022] In the figure:

[0023] 100, rotor body; 101, radial partition; 102, annular partition; 103, heat dissipation ring plate; 104, heat dissipation hole; 105, compartment;

[0024] 200, bushing;

[0025] 300, central axis;

[0026] 400, connecting assembly; 401, connecting pipe; 402, limiting plate; 403, fixing sleeve; 404, threaded connecting column; 405, connecting hole; 406, nut; 407, thread; 408, thread groove. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-5 The utility model provides a technical solution: a new type of air preheater rotor, including:

[0029] A rotor body 100 is provided with a shaft sleeve 200 rotatably at the center of the rotor body 100, and a central axis 300 is provided inside the shaft sleeve 200, and a plurality of radial partitions 101 are provided on the outer surface of the shaft sleeve 200 in a circular array, and a plurality of annular partitions 102 are welded and fixed equidistantly between two adjacent radial partitions 101; the modular cell 105 is changed from a full modular cell 105 structure to a half modular cell 105 structure, so that the rotor is more evenly deformed by heat and prevents the generation of additional internal forces. After years of technical accumulation, the new air preheater has eliminated various weak links, has mature technology, excellent overall performance, and can eliminate rotor cracks.

[0030] The connecting component 400 is used to connect the central axis 300 with the sleeve 200. The connecting component 400 includes a connecting tube 401 fixedly mounted on the inner wall of the sleeve 200. The central axis 300 is slidably connected to the inner wall of the connecting tube 401. A limiting plate 402 is fixedly mounted on the outer surface of the central axis 300 at the bottom end of the connecting tube 401, and a detachable fixing sleeve 403 is disposed on the outer surface of the central axis 300 at the top end of the connecting tube 401.

[0031] Four threaded connection columns 404 are fixedly provided in a circular array on the upper surface of the limiting plate 402, and connection holes 405 corresponding to the four threaded connection columns 404 and slidably connected to the outer surfaces of the threaded connection columns 404 are opened in a circular array inside the tube body of the connecting tube 401. When the central shaft 300 is inserted, the insertion position of the central shaft 300 can be limited, and at the same time, the stability of the central shaft 300 after installation can be effectively improved.

[0032] Four nuts 406 are arranged in a circular array at the top of the connecting tube 401, and the inner annular surfaces of the four nuts 406 are respectively threadedly connected to the outer surfaces of the four threaded connecting columns 404, which can effectively lock the threaded connecting columns 404 and the connecting tube 401, thereby effectively ensuring the stability of the center axis 300 after the connection with the connecting tube 401, and ensuring the service life and structural strength of the rotor.

[0033] The inner annular surface of the fixing sleeve 403 is provided with a thread 407 , and the top outer surface of the connecting pipe 401 is provided with a thread groove 408 threadedly connected to the thread 407 , so that the fixing sleeve 403 and the connecting pipe 401 can be effectively threadedly fixed.

[0034] Among them, the utility model, by setting a connecting assembly 400, enables the air preheater rotor to achieve a quick connection between the center shaft 300 and the sleeve 200 when the rotor body 100 is installed, and the above steps can be reversed during disassembly, thereby achieving the purpose of quickly installing and disassembling the rotor body 100.

[0035] See also Figure 1 , Figure 2 A heat dissipation ring plate 103 is fixedly disposed on the outer ring surface of the rotor body 100 , and a plurality of heat dissipation holes 104 are evenly spaced in a circular array on the outer surface of the heat dissipation ring plate 103 , which can facilitate heat dissipation of the rotor body 100 .

[0036] See also Figure 1 , Figure 3 A plurality of radial partitions 101 and a plurality of annular partitions 102 form a compartment 105 inside the rotor body 100, and the materials of the radial partitions 101 and the annular partitions 102 are both Q355B steel plates, which can effectively enhance the rigidity of the rotor and improve its service life.

[0037] Among them, compared with the existing air preheater rotor, the compartments 105 and the compartments 105 are no longer connected by gaskets and bolts, so that the rotor can be heated and deformed more evenly to prevent the generation of additional internal forces. After years of technological accumulation, the new air preheater has eliminated various weak links, mature technology, excellent overall performance, and can eliminate rotor cracks. It can also enhance the rotor stiffness and eliminate the impact caused by the gap between the double-layer partitions of the full-mode rotor; avoid rotor collision and reduce the impact of horizontal external forces on the rotor, which may lead to fatigue cracks.

[0038] During operation, when installing the rotor body 100 of the air preheater rotor, the central axis 300 can be inserted upward from the bottom end of the sleeve 200 and the connecting pipe 401, so that the four threaded connecting columns 404 are respectively inserted into the four connecting holes 405, and after the limit plate 402 is tightly pressed against the bottom end of the connecting pipe 401, four nuts 406 are used to lock the four threaded connecting columns 404 at the top end of the connecting pipe 401, and finally the fixing sleeve 403 is put on from the top end of the central axis 300, and the fixing sleeve 403 is rotated so that the thread 407 on the fixing sleeve 403 is threadedly connected with the thread groove 408 on the connecting pipe 401, thereby realizing the rapid connection between the central axis 300 and the sleeve 200, and at the same time, the above steps can be reversed for disassembly, thereby achieving the purpose of rapid installation and disassembly of the rotor body 100.

[0039] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A new type of air preheater rotor, characterized by: include, A rotor body (100), wherein a shaft sleeve (200) is rotatably arranged at the center of the rotor body (100), a central shaft (300) is arranged inside the shaft sleeve (200), a plurality of radial baffles (101) are arranged on the outer surface of the shaft sleeve (200) in a circumferential array, and a plurality of annular baffles (102) are welded and fixed equidistantly between two adjacent radial baffles (101); A connecting assembly (400) is used to connect a central shaft (300) with a shaft sleeve (200), wherein the connecting assembly (400) comprises a connecting tube (401) fixedly mounted on the inner wall of the shaft sleeve (200), wherein the central shaft (300) is slidably connected to the inner wall of the connecting tube (401), wherein a limiting plate (402) is fixedly mounted on the outer surface of the central shaft (300) at the bottom end of the connecting tube (401), and wherein a detachable fixing sleeve (403) is mounted on the outer surface of the central shaft (300) at the top end of the connecting tube (401).

2. A novel air preheater rotor according to claim 1, characterized in that: Four threaded connection columns (404) are fixedly arranged in a circular array on the upper surface of the limiting plate (402), and connection holes (405) corresponding to the four threaded connection columns (404) and slidably connected to the outer surfaces of the threaded connection columns (404) are opened in a circular array inside the tube body of the connecting tube (401).

3. The novel air preheater rotor according to claim 1 is characterized in that: The top end of the connecting pipe (401) is provided with four nuts (406) in a circumferential array, and the inner annular surfaces of the four nuts (406) are respectively threadedly connected to the outer surfaces of four threaded connecting columns (404).

4. The novel air preheater rotor according to claim 1 is characterized in that: The inner annular surface of the fixing sleeve (403) is provided with a thread (407), and the outer surface of the top end of the connecting pipe (401) is provided with a thread groove (408) threadably connected to the thread (407).

5. The novel air preheater rotor according to claim 1 is characterized in that: A heat dissipation ring plate (103) is fixedly arranged on the outer ring surface of the rotor body (100), and a plurality of heat dissipation holes (104) are equidistantly arranged in a circular array on the outer surface of the heat dissipation ring plate (103).

6. The novel air preheater rotor according to claim 1 is characterized in that: A plurality of radial partitions (101) and a plurality of annular partitions (102) form a compartment (105) inside the rotor body (100), and the radial partitions (101) and the annular partitions (102) are both made of Q355B steel plates.

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