Compensator for large fan

Abstract

The utility model relates to the technical field of fan accessories, in particular to a compensator for a large fan, which comprises two connecting rings, mounting holes are formed in the outer rings of the surfaces of the connecting rings in a penetrating manner, and an elastic fluorine adhesive tape and a metal corrugated pipe sleeve are fixedly mounted between the two connecting rings respectively. Reinforcing cloth is fixedly sewn on the outer ring of the elastic fluorine adhesive tape and located between the two connecting rings. Through the arrangement of the elastic fluorine adhesive tape, the metal corrugated pipe sleeve and the reinforcing cloth, the transmission is stable, the transmission stability of an introduced medium can be ensured, and impurities are prevented from being accumulated in the metal corrugated pipe sleeve; and by arranging the positioning buffer mechanism, the mechanical buffer advantage is achieved, in the medium transmission process, the metal corrugated pipe sleeve continuously vibrates, the abutting arc plate continuously moves, the vibration force is buffered and absorbed through the spring, the transmission vibration force is further reduced, and the overall noise reduction performance and stability are better.

Description

Technical Field

[0001] The utility model relates to the technical field of fan accessories, in particular to a compensator for a large fan. Background Art

[0002] In the field of metallurgy, the main exhaust fan used in the sintering process has a large volume flow rate and a high negative pressure at the inlet. The compensator, as one of the commonly used accessories for large fans, can absorb the vibration and noise of the fan to improve the working efficiency of the fan and reduce noise pollution. It is often used at the connection between the fan and the pipeline.

[0003] After searching, the patent number is CN103322366A, and the name is a utility model of a metal compensator for a large fan pipe network, including a corrugated sealing part and connecting parts respectively arranged on both sides of the corrugated sealing part. Through research and analysis, it is found that although the structural strength of the metal compensator can be improved under the premise of ensuring the free expansion and contraction of the metal compensator during the production process, the following disadvantages still exist to a certain extent.

[0004] For example, the equipment uses a sealing cover to reinforce and protect the connection. However, since the metal bellows are directly installed, the interior is uneven and tilted. The incoming medium will be intercepted and blocked by the inclined surface inside the bellows, which not only affects the air volume and transmission stability, but also easily causes the transmission medium to be blocked and accumulated inside the bellows. At the same time, it does not have the function of mechanical buffering protection. In order to solve the above technical problems, we have designed a compensator for large fans. Utility Model Content

[0005] The purpose of the utility model is to provide a compensator for a large fan, which has the advantages of stable transmission and mechanical buffering, and solves the problem that when the metal bellows of the equipment are directly installed, the incoming medium will be intercepted and blocked by the inclined surface inside the bellows, which not only affects the air volume and transmission stability, but also easily causes the transmission medium to be blocked and accumulated inside the bellows, and at the same time does not have the mechanical buffering protection function.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a compensator for a large fan, comprising a connecting ring, wherein the number of the connecting rings is two, the outer rings on the surfaces of the connecting rings are penetrated with mounting holes, an elastic fluororubber tape and a metal bellows sleeve are respectively fixedly installed between the two connecting rings, the outer ring of the elastic fluororubber tape is fixedly sewn with a reinforcing cloth between the two connecting rings, and a positioning buffer mechanism is installed between the two connecting rings.

[0007] Preferably, the number of the positioning buffer mechanisms is several and they are evenly distributed on the surface of the connecting ring, and the positioning buffer mechanisms include displacement grooves, which are provided on the surface of the connecting ring.

[0008] Preferably, a connecting block is slidably mounted in the inner cavity of the displacement groove, and a vertical rod is fixedly connected to the center of the surface of the connecting block.

[0009] Preferably, one end of the vertical rod passes through the outside of the connecting ring and is sleeved with a spring, a thread is formed on the surface of the vertical rod, and a positioning screw sleeve is threadedly sleeved on the surface of the thread.

[0010] Preferably, one end of the spring is fixedly connected to the surface of the connecting ring, and the other end of the spring is in contact with the surface of the positioning screw sleeve.

[0011] Preferably, a pressure arc plate is fixedly connected to the surface of the connection block, the number of the pressure arc plates is two, and a fixed block is fixedly connected to the top of the pressure arc plate on the left side.

[0012] Preferably, a guide rod is fixedly connected to the right side of the fixed block, a fixed sleeve is fixedly connected to the top of the pressing arc plate on the right side, and one end of the guide rod away from the fixed block passes through the fixed sleeve and is in sliding contact with the fixed sleeve.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model has the advantage of stable transmission by arranging elastic fluoro rubber cloth, metal bellows sleeve and reinforcing cloth. The elastic fluoro rubber cloth can be fixedly installed in the connecting ring to ensure the stability of the medium transmission and avoid the accumulation of impurities in the metal bellows sleeve. The metal bellows sleeve is placed outside the elastic fluoro rubber cloth to play the role of shock absorption and noise reduction again.

[0015] 2. The utility model has the advantage of mechanical buffering by setting a positioning buffer mechanism. During the medium transmission process, the metal bellows sleeve can continuously vibrate, causing the pressure arc plate to continuously move. The spring buffers and absorbs the vibration force, further reducing the transmission vibration force, and improving the overall noise reduction and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a sectional stereoscopic diagram of the structure of the utility model;

[0018] Figure 3 It is a schematic cross-sectional view of the local structure of the utility model.

[0019] In the figure: 1. connecting ring; 2. elastic fluoro rubber tape; 3. positioning buffer mechanism; 301. screw thread; 302. positioning screw sleeve; 303. spring; 304. vertical rod; 305. displacement groove; 306. connecting block; 307. arc pressure plate; 308. fixing block; 309. guide rod; 310. fixing sleeve; 4. metal bellows sleeve; 5. mounting hole; 6. reinforcing cloth. DETAILED DESCRIPTION

[0020] See also Figure 1-Figure 3 A compensator for a large wind turbine includes a connecting ring 1, the number of the connecting rings 1 is two, and the outer rings of the connecting rings 1 are penetrated with mounting holes 5. By setting the mounting holes 5, the connecting rings 1 can be stably installed in a suitable position with the cooperation of external bolts. An elastic fluoro rubber cloth 2 and a metal bellows sleeve 4 are respectively fixedly installed between the two connecting rings 1. By setting the elastic fluoro rubber cloth 2, it has the advantages of high temperature resistance, corrosion resistance, aging resistance, electrical insulation, wear resistance and elasticity. It can be flexibly installed between the two connecting rings 1 with variable spacing, and meet the requirements of medium transmission. The elastic fluoro rubber cloth 2 itself has a better service life. The outer ring of the elastic fluoro rubber cloth 2 is fixedly sewn with a reinforcing cloth 6 between the two connecting rings 1, and a positioning buffer mechanism 3 is installed between the two connecting rings 1;

[0021] See also Figure 1 , Figure 2 and Figure 3 The number of the positioning buffer mechanisms 3 is several and evenly distributed on the surface of the connecting ring 1. The positioning buffer mechanism 3 includes a displacement groove 305. The displacement groove 305 is provided on the surface of the connecting ring 1. By providing the displacement groove 305, the space requirement for the vertical displacement of the connecting block 306 can be met.

[0022] See also Figure 1 and Figure 3 A connecting block 306 is slidably mounted in the inner cavity of the displacement groove 305, and a vertical rod 304 is fixedly connected to the center of the surface of the connecting block 306. By setting the vertical rod 304, it can be in sliding contact with the connecting ring 1, thereby ensuring the stability of the up and down displacement of the connecting block 306 and meeting the requirements for the opening of the screw thread 301;

[0023] See also Figure 1 and Figure 3 One end of the vertical rod 304 penetrates the outside of the connecting ring 1 and is sleeved with a spring 303. A screw thread 301 is provided on the surface of the vertical rod 304. A positioning screw sleeve 302 is provided on the surface of the screw thread 301. By providing the screw thread 301 and the positioning screw sleeve 302, a thread transmission effect can be achieved. The initial height of the positioning screw sleeve 302 can be flexibly changed by driving the positioning screw sleeve 302 to rotate.

[0024] See also Figure 1 and Figure 3, one end of the spring 303 is fixedly connected to the surface of the connecting ring 1, and the other end of the spring 303 is in contact with the surface of the positioning screw sleeve 302;

[0025] See also Figure 1 and Figure 3 The surface of the connecting block 306 is fixedly connected with a pressing arc plate 307, and the number of the pressing arc plates 307 is two. By setting the pressing arc plates 307, it can contact with the metal bellows sleeve 4, and when the metal bellows sleeve 4 vibrates, the pressing arc plates 307 are displaced, and the top of the pressing arc plate 307 on the left side is fixedly connected with a fixing block 308;

[0026] See also Figure 1 and Figure 3 The right side of the fixed block 308 is fixedly connected with a guide rod 309, and the top of the pressing arc plate 307 on the right side is fixedly connected with a fixing sleeve 310. The end of the guide rod 309 away from the fixed block 308 passes through the fixing sleeve 310 and is in sliding contact with the fixing sleeve 310. By setting the fixed block 308, the guide rod 309 and the fixing sleeve 310, a positioning and guiding function can be achieved, and when the distance between the two connecting rings 1 changes, the two pressing arc plates 307 can still be displaced synchronously;

[0027] The reinforcing cloth 6 is made of alkali-free glass fiber cloth, which has high strength and good thermal insulation performance, can help improve the overall high temperature resistance and corrosion resistance, and well meet the use requirements in large fans.

[0028] When in use, all components are in the initial installation state. First, according to the actual installation requirements, the distance between the two connecting rings 1 is flexibly adjusted. Since the metal bellows sleeve 4 is a corrugated design, when the distance between the two connecting rings 1 is reduced, the crest of the metal bellows sleeve 4 gradually bulges, and when the distance between the two connecting rings 1 is increased, the crest of the metal bellows sleeve 4 gradually flattens. After the distance between the two connecting rings 1 is adjusted, according to the crest of the metal bellows sleeve 4, the positioning screw sleeve 302 is driven to rotate on the screw thread 301 to adjust the distance between the positioning screw sleeve 302 and the connecting ring 1 in the initial state, that is, the spring 3 is adjusted. 03 initial length, under the elastic support of the spring 303, the arc plate 307 contacts with the metal bellows sleeve 4, and the connecting ring 1 is fixedly installed between the large fan and the transmission pipeline with the external bolts and nuts. When the large fan is working, the medium passes into the elastic fluororubber tape 2 and causes the metal bellows sleeve 4 to vibrate. Since the arc plate 307 contacts with the metal bellows sleeve 4, the arc plate 307 will move synchronously, and the connecting block 306 will move in the displacement groove 305, and the spring 303 will be stretched or compressed, so as to achieve the purpose of mechanical buffering and shock absorption, which is more in line with actual use requirements.

[0029] In summary: the compensator for large fans solves the problem that the metal bellows of the equipment are directly installed, and the incoming medium will be intercepted and blocked by the inclined surface inside the bellows, by setting the elastic fluororubber tape 2, the positioning buffer mechanism 3, the metal bellows sleeve 4 and the reinforcing cloth 6, which not only affects the air volume and transmission stability, but also easily causes the transmission medium to be blocked and accumulated inside the bellows, and at the same time does not have the mechanical buffer protection function.

Claims

1. A compensator for a large wind turbine, comprising a connecting ring (1), wherein the number of the connecting rings (1) is two, and wherein: The outer rings of the surfaces of the connecting rings (1) are penetrated with mounting holes (5), an elastic fluororubber cloth (2) and a metal bellows sleeve (4) are respectively fixedly mounted between the two connecting rings (1), a reinforcing cloth (6) is fixedly sewn on the outer rings of the elastic fluororubber cloth (2) and located between the two connecting rings (1), and a positioning buffer mechanism (3) is mounted between the two connecting rings (1).

2. A compensator for a large wind turbine according to claim 1, characterized in that: The number of the positioning and buffering mechanisms (3) is several and they are evenly distributed on the surface of the connecting ring (1). The positioning and buffering mechanisms (3) comprise displacement grooves (305) which are provided on the surface of the connecting ring (1).

3. A compensator for a large wind turbine according to claim 2, characterized in that: A connecting block (306) is slidably mounted in the inner cavity of the displacement groove (305), and a vertical rod (304) is fixedly connected to the center of the surface of the connecting block (306).

4. A compensator for a large wind turbine according to claim 3, characterized in that: One end of the vertical rod (304) penetrates the outside of the connecting ring (1) and is sleeved with a spring (303); a screw thread (301) is provided on the surface of the vertical rod (304); and a positioning screw sleeve (302) is threadedly sleeved on the surface of the screw thread (301).

5. A compensator for a large wind turbine according to claim 4, characterized in that: One end of the spring (303) is fixedly connected to the surface of the connecting ring (1), and the other end of the spring (303) is in contact with the surface of the positioning screw sleeve (302).

6. A compensator for a large wind turbine according to claim 5, characterized in that: The surface of the connection block (306) is fixedly connected with a pressure arc plate (307), the number of the pressure arc plates (307) is two, and the top of the pressure arc plate (307) located on the left side is fixedly connected with a fixed block (308).

7. A compensator for a large wind turbine according to claim 6, characterized in that: A guide rod (309) is fixedly connected to the right side of the fixed block (308), a fixed sleeve (310) is fixedly connected to the top of the pressing arc plate (307) on the right side, and one end of the guide rod (309) away from the fixed block (308) passes through the fixed sleeve (310) and is in sliding contact with the fixed sleeve (310).

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