Sealing device of rotary flue gas heat exchanger

Abstract

The utility model relates to the technical field of flue gas heat exchangers, and discloses a sealing device of a rotary flue gas heat exchanger, which comprises two fixing frames, the left side and the right side of the fixing frame on the rear side are both in threaded connection with two bolts I, and the front ends of the bolts I penetrate through the left side and the right side of the fixing frame on the front side; the device comprises two fixing frames, the interiors of the two fixing frames are fixedly connected with the same exhaust pipe, the interior of the fixing frame on the rear side is fixedly connected with a fixing plate, the rear side of the fixing plate is fixedly connected with fan blades, the interior of the fixing frame on the front side is fixedly connected with a heat exchange pipe, and the sides, away from each other, of the two fixing frames are fixedly connected with air conveying hoppers. The gas conveying pipe is externally connected with the gas conveying pipe, the mounting plate is arranged on the outer wall of the connecting pipe and fastened with the gas conveying hopper through bolts, rapid mounting and dismounting are facilitated, the sealing ring is embedded in the mounting plate, after the gas conveying pipe is inserted, the sealing ring is attached to the pipe wall, gas leakage is eradicated, and therefore the situation that equipment is affected by gas leakage is avoided, and working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to flue gas heat exchanger technical field especially relates to a sealing device of rotary flue gas heat exchanger. BACKGROUND

[0002] The sealing device of rotary flue gas heat exchanger is the key component for reducing the leakage between flue gas and air when the equipment is running, since the rotor of rotary heat exchanger rotates continuously, there is a gap between the moving and static parts, the sealing device reduces the medium leakage caused by pressure difference through special structure design, thereby guaranteeing the equipment efficiency and safety.

[0003] Since the rotor rotates continuously during the operation of rotary flue gas heat exchanger, there is relative motion between the sealing sheet and the sealing baffle or other cooperating parts, the sealing sheet will be worn down after long-term operation, especially in the case that the flue gas contains dust particles, the erosion of dust will aggravate the wear of the sealing sheet, leading to the increase of sealing gap and the decrease of sealing effect, the prior art adopts the material with better wear resistance, the nickel-based alloy has good high-temperature resistance and wear resistance, and can withstand the erosion of high-temperature flue gas and dust, the ceramic coating steel plate is coated with a wear-resistant ceramic coating on the surface of ordinary steel plate, greatly improving the surface hardness and wear resistance of the sealing sheet, but in actual use, the use of material with better wear resistance will increase the manufacturing cost, and when disassembling is needed during long-term use, too many parts need to be disassembled, leading to complex disassembly and reducing work efficiency. UTILITY MODEL CONTENT

[0004] In order to make up for the above shortcomings, the utility model provides a sealing device of rotary flue gas heat exchanger, aiming at improving the problem that the use of material with better wear resistance will increase the manufacturing cost in the prior art, too many parts need to be disassembled when disassembling is needed during long-term use, leading to complex disassembly and reducing work efficiency.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a sealing device of rotary flue gas heat exchanger, including two fixed frames, the left and right sides of the rear fixed frame are screw connected with two bolts one, the front ends of the plurality of bolts one are penetrated through the left and right sides of the front fixed frame, the interiors of the two fixed frames are fixedly connected with the same exhaust pipe, the interior of the rear fixed frame is fixedly connected with a fixed plate, the rear side of the fixed plate is fixedly connected with a fan blade, the interior of the front fixed frame is fixedly connected with a heat exchange pipe, the sides away from each other of the two fixed frames are fixedly connected with a gas delivery hopper, the sides away from each other of the two gas delivery hoppers are communicated with a connecting pipe, the outer walls of the two connecting pipes are fixedly connected with a plurality of mounting plates, the sides away from each other of the plurality of mounting plates are screw connected with a bolt two, the interiors of the two mounting plates are fixedly connected with a plurality of sealing rings, the interior of the exhaust pipe is provided with a filtering mechanism.

[0006] As a further description of the above technical solution: the filtering mechanism includes a fixed ring, the outer wall of the fixed ring is fixedly connected in the exhaust pipe, the inner part of the fixed ring is fixedly connected with a filter screen, the front side of the fixed ring is provided with a mounting ring, the rear side of the fixed ring and the front side of the mounting ring are both fixedly connected with a plurality of fixed blocks, and the adjacent ones of the plurality of fixed blocks are all threadedly connected with bolts three.

[0007] As a further description of the above technical solution: the outer wall of the plurality of bolts one is all fixedly connected with a gasket, and the outer wall of the plurality of gaskets is all designed in a round and smooth manner.

[0008] As a further description of the above technical solution: the faraway side of the plurality of bolts two is all provided with an inner hexagonal groove, and the outer wall of the plurality of inner hexagonal grooves is all designed in a chamfered manner.

[0009] As a further description of the above technical solution: the right side of the rear fixed frame is fixedly connected with a connecting plate, and the right side of the connecting plate is fixedly connected with a warning sign.

[0010] As a further description of the above technical solution: the front side of the rear fixed frame is provided with a sealing groove, and the rear side of the front fixed frame is fixedly connected with a sealing ring.

[0011] As a further description of the above technical solution: the plurality of bolts one is all arranged at equal distances, and the outer wall diameter of the exhaust pipe matches the inner diameter of the fixed frame.

[0012] As a further description of the above technical solution: the adjacent ones of the plurality of mounting plates are all arranged in a ring array, and the plurality of bolts two are all designed in a symmetrical manner.

[0013] The utility model has the advantages of the following beneficial effects:

[0014] 1. In the utility model, one end of the gas conveying hopper is connected with the fixed frame, the other end is communicated with the connecting pipe, which is used for connecting the gas conveying pipe, the mounting plate is arranged on the outer wall of the connecting pipe, and the gas conveying hopper is fastened through the bolt, so that the gas conveying hopper can be quickly installed and disassembled, the connecting demand of different scenes can be met, the sealing ring is embedded in the mounting plate, when the gas conveying pipe is inserted into the connecting pipe, the sealing ring closely adheres to the pipe wall to form effective sealing, and gas leakage is avoided, so that the equipment performance is not affected by gas leakage, and the working efficiency is improved.

[0015] 2. In the utility model, the fixed ring provides stable support for the filter screen, so that the filter screen can effectively filter the particles in the flue gas, and the subsequent equipment and the environment are prevented from being polluted; when installing, the filter screen is clamped through the fixed ring and the mounting ring, and is fastened through the bolts on the fixed blocks; when disassembling the filter screen, the bolts are unscrewed, the mounting ring is removed, and the filter screen is reinstalled after cleaning, so that the filter screen can continuously and efficiently work, and the stability and cleanliness of the flue gas discharge system are ensured. FIGURE DESCRIPTION

[0016] Figure 1 is a perspective view of a sealing device of a rotary flue gas heat exchanger;

[0017] Figure 2 is a front view of a sealing device of a rotary flue gas heat exchanger;

[0018] Figure 3 is an exploded view of an exhaust pipe of a sealing device of a rotary flue gas heat exchanger;

[0019] Figure 4 is an exploded view of a connecting pipe of a sealing device of a rotary flue gas heat exchanger;

[0020] Figure 5 is an exploded view of a filter screen of a sealing device of a rotary flue gas heat exchanger.

[0021] In the figure: 1, fixed frame; 2, filter mechanism; 201, fixed ring; 202, filter screen; 203, mounting ring; 204, fixed block; 205, bolt three; 3, bolt one; 4, exhaust pipe; 5, fixed plate; 6, fan blade; 7, heat exchange pipe; 8, gas conveying hopper; 9, connecting pipe; 10, mounting plate; 11, bolt two; 12, sealing ring; 13, gasket; 14, internal hexagonal groove; 15, connecting plate; 16, warning sign; 17, sealing groove; 18, sealing ring. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] With reference to Figure 1 , Figure 3 and Figure 4The utility model provides a kind of sealing device of rotary flue gas heat exchanger, including two fixed frame 1, the left and right sides of rear fixed frame 1 are all threadedly connected with two bolts one 3, the front end of multiple bolts one 3 is all penetrated the left and right sides of front fixed frame 1, two fixed frame 1 are fixed together by bolt one 3, the inside fixed connection of two fixed frame 1 has same exhaust pipe 4, for discharging smoke, the inside fixed connection of rear fixed frame 1 has fixed plate 5, the rear side fixed connection of fixed plate 5 has fan blade 6, for inhaling flue gas into exhaust pipe 4, the inside fixed connection of front fixed frame 1 has heat exchange pipe 7, for absorbing the heat of flue gas, the side of two fixed frame 1 that is far away is all fixedly connected with gas delivery hopper 8, the side of two gas delivery hoppers 8 that is far away is all communicated with connecting pipe 9, for installing gas delivery pipe, the outer wall of two connecting pipes 9 is all fixedly connected with multiple mounting plates 10, the side of multiple mounting plates 10 that is far away is all threadedly connected with bolt two 11, connecting pipe 9 is installed on the outer wall of gas delivery hopper 8 by mounting plate 10 and bolt two 11, it is convenient to quickly install and disassemble, the inside of two mounting plates 10 is all fixedly connected with multiple sealing rings 12, when gas delivery pipe is installed in the inside of connecting pipe 9, sealing ring 12 sticks to gas delivery pipe, prevent gas leakage, filter mechanism 2 is arranged in the inside of exhaust pipe 4;

[0024] Specifically, the left and right sides of the rear fixed frame 1 are each threadedly connected with two bolts one 3, the front ends of these bolts one 3 penetrate the left and right sides of the front fixed frame 1, achieving stable fixation of the two fixed frames 1, in the two fixed frames 1, an exhaust pipe 4 for discharging smoke is arranged, penetrating the entire fixed frame 1 structure, on the fixed plate 5 fixed in the rear fixed frame 1, the fan blade 6 is connected to the rear side, the fan blade 6 can inhale flue gas into the exhaust pipe 4, ensuring the delivery of flue gas, the heat exchange pipe 7 in the front fixed frame 1 is used for absorbing the heat of flue gas, on the sides of the two fixed frames 1 that are far away, the gas delivery hoppers 8 are fixedly connected, the connecting pipes 9 are communicated with the sides of the gas delivery hoppers 8 that are far away from the fixed frames 1, for installing the gas delivery pipe, the outer wall of the connecting pipe 9 is provided with multiple mounting plates 10, the bolt two 11 is threadedly connected on the mounting plate 10, so that the connecting pipe 9 can be conveniently and quickly installed on the outer wall of the gas delivery hopper 8 through the mounting plate 10 and the bolt two 11, facilitating quick installation and disassembly in the later period, in the two mounting plates 10, multiple sealing rings 12 are fixedly connected, when the gas delivery pipe is installed in the inside of the connecting pipe 9, the sealing ring 12 can tightly stick to the gas delivery pipe, effectively preventing gas leakage, ensuring the sealing property and stability of the entire flue gas delivery and heat exchange system.

[0025] Refer to Figure 2 And Figure 5The filtering mechanism 2 comprises a fixed ring 201, the outer wall of the fixed ring 201 is fixedly connected to the inside of the exhaust pipe 4, the inside of the fixed ring 201 is fixedly connected with a filter screen 202, which is used for filtering the particles carried by the flue gas, the front side of the fixed ring 201 is provided with a mounting ring 203, when the filter screen 202 is mounted, the filter screen 202 is placed in the inside of the fixed ring 201, and then the mounting ring 203 is placed against the fixed ring 201, the rear side of the fixed ring 201 and the front side of the mounting ring 203 are fixedly connected with a plurality of fixed blocks 204, the adjacent fixed blocks 204 are threadedly connected with a bolt three 205, and the fixed ring 201 and the mounting ring 203 are fixed in the inside of the exhaust pipe 4 through the bolt three 205, so that the filter screen 202 can be conveniently disassembled for cleaning.

[0026] Specifically, in the inside of the exhaust pipe 4, the outer wall of the fixed ring 201 is fixedly connected to the inside of the exhaust pipe 4, the inside of the fixed ring 201 is fixedly connected with a filter screen 202, which is used for filtering the particles carried by the flue gas, the front side of the fixed ring 201 is provided with a mounting ring 203, when the filter screen 202 is mounted, the filter screen 202 is placed in the inside of the fixed ring 201, and then the mounting ring 203 is placed against the fixed ring 201, the rear side of the fixed ring 201 and the front side of the mounting ring 203 are fixedly connected with a plurality of fixed blocks 204, the adjacent fixed blocks 204 are threadedly connected with a bolt three 205, and the fixed ring 201 and the mounting ring 203 are fixed in the inside of the exhaust pipe 4 through the bolt three 205, so that the filter screen 202 can be conveniently disassembled for cleaning.

[0027] Referring to Figure 1 and Figure 2 The outer wall of each of the plurality of bolts one 3 is fixedly connected with a gasket 13, the outer wall of each of the plurality of gaskets 13 is designed to be smooth, so as to prevent the bolts one 3 from being screwed too tightly, the side away from each of the plurality of bolts two 11 is provided with an internal hexagonal groove 14, and the outer wall of each of the plurality of internal hexagonal grooves 14 is designed to be chamfered, so as to facilitate the rotation of the bolts two 11, the right side of the rear side fixing frame 1 is fixedly connected with a connecting plate 15, and the right side of the connecting plate 15 is fixedly connected with a warning sign 16, which is used for reminding safety.

[0028] Specifically, the outer wall of each of the plurality of bolts one 3 is fixedly connected with a gasket 13, the outer wall of each of the plurality of gaskets 13 is designed to be smooth, so as to prevent the bolts one 3 from being screwed too tightly, the side away from each of the plurality of bolts two 11 is provided with an internal hexagonal groove 14, and the outer wall of each of the plurality of internal hexagonal grooves 14 is designed to be chamfered, so as to facilitate the rotation of the bolts two 11, the right side of the rear side fixing frame 1 is fixedly connected with a connecting plate 15, and the right side of the connecting plate 15 is fixedly connected with a warning sign 16, which is used for reminding safety.

[0029] Referring to Figure 1 and Figure 3 The front side of the rear fixing frame 1 is provided with a sealing groove 17, and the rear side of the front fixing frame 1 is fixedly connected with a sealing ring 18, thereby significantly enhancing the sealing property between the two fixing frames 1 and effectively preventing smoke leakage. The plurality of bolts one 3 are arranged at equal intervals, thereby ensuring stable connection and uniform stress of the fixing frame 1. The outer wall diameter of the exhaust pipe 4 is accurately matched with the inner diameter of the fixing frame 1, thereby ensuring seamless connection after installation. The plurality of mounting plates 10 are arranged in a ring shape at adjacent positions, and the plurality of bolts two 11 are symmetrically distributed, thereby facilitating installation operation and further improving the stability and reliability of the connection structure.

[0030] Specifically, the front side of the rear fixing frame 1 is provided with a sealing groove 17, and the rear side of the front fixing frame 1 is fixedly connected with a sealing ring 18, thereby significantly enhancing the sealing property between the two fixing frames 1 and effectively preventing smoke leakage. The plurality of bolts one 3 are arranged at equal intervals, thereby ensuring stable connection and uniform stress of the fixing frame 1. The outer wall diameter of the exhaust pipe 4 is accurately matched with the inner diameter of the fixing frame 1, thereby ensuring seamless connection after installation. The plurality of mounting plates 10 are arranged in a ring shape at adjacent positions, and the plurality of bolts two 11 are symmetrically distributed, thereby facilitating installation operation and further improving the stability and reliability of the connection structure.

[0031] Working principle: The rear fixing frame 1 and the front fixing frame 1 are fastened by two bolts one 3 on the left and right sides, forming a stable frame. The internal exhaust pipe 4 penetrates the fixing frame 1 and serves as the main channel for smoke. The fan blade 6 carried by the fixed plate 5 in the rear fixing frame 1 generates suction when it operates, actively drawing smoke into the exhaust pipe 4 and driving the flow of smoke. The heat exchange pipe 7 in the front fixing frame 1 efficiently absorbs heat during the flow of smoke, completing the conversion of heat energy. The gas delivery hopper 8 on both sides is connected to the connecting pipe 9, which can be quickly disassembled and assembled with the mounting plate 10 and the bolt two 11, adapting to different pipeline requirements. The sealing ring 12 in the mounting plate 10 tightly fits the pipe wall after the gas delivery pipe is inserted, blocking gas leakage and ensuring stable and efficient smoke delivery and heat exchange processes.

[0032] Furthermore, the fixing ring 201 is tightly fixed to the inner wall of the exhaust pipe 4, forming a stable installation base. The filter screen 202 inside can effectively intercept particles carried in the smoke, ensuring the cleanliness of the discharged smoke and preventing particles from affecting subsequent equipment or the environment. During installation, the filter screen 202 is clamped in the middle by the installation ring 203 cooperating with the fixing ring 201. By tightening the bolt three 205 on the fixing block 204 at the rear side of the fixing ring 201 and the front side of the installation ring 203, stable installation inside the exhaust pipe 4 is achieved. When the filter screen 202 is blocked due to intercepting a large number of particles, affecting the filtering efficiency, only the bolt three 205 needs to be unscrewed to quickly disassemble the installation ring 203, and then the filter screen 202 can be removed for cleaning. After cleaning, the filter screen 202 can continue to play a high-efficiency filtering role by following the installation steps, ensuring the stability and cleanliness of the entire smoke exhaust device.

[0033] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, the made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A sealing device for a rotary flue gas heat exchanger comprising two fixed frames (1), characterized in that: Both sides of the rear fixing frame (1) are threadedly connected with two bolts one (3), the front ends of the plurality of bolts one (3) penetrate the left and right sides of the front fixing frame (1), the interiors of the two fixing frames (1) are fixedly connected with the same exhaust pipe (4), the interior of the rear fixing frame (1) is fixedly connected with a fixed plate (5), the rear side of the fixed plate (5) is fixedly connected with a fan blade (6), the interior of the front fixing frame (1) is fixedly connected with a heat exchange pipe (7), the sides away from each other of the two fixing frames (1) are fixedly connected with gas delivery hoppers (8), the sides away from each other of the two gas delivery hoppers (8) are communicated with connecting pipes (9), the outer walls of the two connecting pipes (9) are fixedly connected with a plurality of mounting plates (10), the sides away from each other of the plurality of mounting plates (10) are threadedly connected with bolts two (11), the interiors of the two mounting plates (10) are fixedly connected with a plurality of sealing rings (12), and the interior of the exhaust pipe (4) is provided with a filtering mechanism (2).

2. A sealing device for a rotary flue gas heat exchanger according to claim 1, characterized in that The filtering mechanism (2) comprises a fixed ring (201), the outer wall of the fixed ring (201) is fixedly connected in the interior of the exhaust pipe (4), the interior of the fixed ring (201) is fixedly connected with a filter screen (202), the front side of the fixed ring (201) is provided with a mounting ring (203), the rear side of the fixed ring (201) and the front side of the mounting ring (203) are fixedly connected with a plurality of fixed blocks (204), and the adjacent sides of the plurality of fixed blocks (204) are threadedly connected with bolts three (205).

3. A sealing device for a rotary flue gas heat exchanger according to claim 1, characterized in that: The outer walls of the plurality of bolts one (3) are fixedly connected with gaskets (13), and the outer walls of the plurality of gaskets (13) are designed in a round and smooth manner.

4. A sealing device for a rotary flue gas heat exchanger according to claim 1, characterized in that: The sides away from each other of the plurality of bolts two (11) are provided with internal hexagonal grooves (14), and the outer walls of the plurality of internal hexagonal grooves (14) are designed in a chamfered manner.

5. A sealing device for a rotary flue gas heat exchanger according to claim 1, characterized in that: The right side of the rear fixing frame (1) is fixedly connected with a connecting plate (15), and the right side of the connecting plate (15) is fixedly connected with a warning sign (16).

6. A sealing device for a rotary flue gas heat exchanger according to claim 1, characterized in that: The front side of the rear fixing frame (1) is provided with a sealing groove (17), and the rear side of the front fixing frame (1) is fixedly connected with a sealing ring (18).

7. A sealing device for a rotary flue gas heat exchanger according to claim 1, characterized in that: The plurality of bolts one (3) are arranged at equal distances, and the outer wall diameter of the exhaust pipe (4) matches the inner diameter of the fixing frame (1).

8. A sealing device for a rotary flue gas heat exchanger according to claim 1, characterized in that: The adjacent sides of the plurality of mounting plates (10) are arranged in an annular array, and the plurality of bolts two (11) are designed in a symmetrical manner.

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