Air pre-heater heat exchange sheet device convenient to clean

Abstract

The utility model belongs to the technical field of air pre-heaters, and particularly relates to an air pre-heater heat exchange sheet device convenient to clean, which comprises a support frame, a plurality of vertically arranged heat exchange sheets are arranged in the support frame, each heat exchange sheet comprises a linear section and a corrugated section which are sequentially connected end to end, and the vertical side walls of the linear section and the corrugated section are smooth planes. The air pre-heater heat exchange piece device convenient to clean has the effect that impurities on the surfaces of the heat exchange pieces are easy to wash down, the possibility that the impurities are accumulated on the surfaces of the heat exchange pieces is reduced, and then the heat exchange efficiency of the heat exchange pieces is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of air preheaters, in particular to an air preheater heat exchange fin device which is easy to clean. Background Art

[0002] The three-compartment rotary air preheater is a commonly used device for waste heat recovery. The boiler flue gas passes through the preheater from top to bottom. When the boiler flue gas passes through the heat exchanger, the heat exchanger stores the heat in the flue gas. The preheater drives the heat exchanger to rotate and passes through the air circulation area. The heat stored in the heat exchanger is released into the air to obtain preheated air, and the heat in the flue gas is recovered for waste heat.

[0003] The existing heat exchanger has a corrugated cross-section and is provided with a number of stamped grooves on its surface. After long-term use, dust, coal slag and other impurities will accumulate on the surface of the heat exchanger and in the grooves. In order to ensure the heat exchange efficiency, the impurities need to be flushed out regularly. However, the impurities in the grooves are not easy to be flushed out, and the impurities continue to remain in the grooves, affecting the heat exchange efficiency of the heat exchanger. Utility Model Content

[0004] In order to solve the problems in the above-mentioned background technology, the utility model provides an air preheater heat exchanger device that is easy to clean. When the surface of the heat exchanger needs to be cleaned after the heat exchanger performs a period of heat exchange work, the heat exchanger in the support frame is flushed through a spray pipe. The vertical side walls of the straight section and the corrugated section are smooth planes, and the vertical side walls of the heat exchanger have no grooves, which has the effect of easily flushing away impurities on the surface of the heat exchanger, reducing the possibility of impurities accumulating on the surface of the heat exchanger, thereby ensuring the heat exchange efficiency of the heat exchanger.

[0005] The utility model provides an air preheater heat exchanger fin device that is easy to clean, including a support frame. A plurality of vertically arranged heat exchanger fins are arranged inside the support frame. Each heat exchanger fin includes a straight section and a corrugated section connected end to end in sequence, and the vertical side walls of the straight section and the corrugated section are both smooth planes.

[0006] Furthermore, the surface of the heat exchange plate is coated with a ceramic layer.

[0007] Furthermore, each heat exchange plate is fixedly connected to a pair of connecting plates, and a plurality of connecting grooves are downwardly provided on the upper surface of the support frame, and the connecting plates are plugged into the connecting grooves.

[0008] Furthermore, a first magnet is fixedly connected to the lower surface of each connecting plate, a plug-in slot is provided at the bottom of the connecting slot for the first magnet to be plugged in, a second magnet is fixedly connected to the bottom of the plug-in slot, and the first magnet and the second magnet are attracted and abutted.

[0009] Furthermore, a plurality of fixing components for fixing the connecting plates are connected to the upper surface of the support frame, and the fixing components are arranged in a one-to-one correspondence with the connecting plates.

[0010] Furthermore, the fixing assembly includes a fixing rod fixedly connected to the upper surface of the support frame, the fixing rod is rotatably connected to an abutment plate, and the abutment plate abuts against the upper surface of the connecting plate.

[0011] Furthermore, a fixing bolt is threadedly connected to the side wall of the abutment plate, and the fixing bolt abuts against the fixing rod.

[0012] Furthermore, a pair of vertical side walls of the support frame are respectively fixedly connected with sealing gaskets.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] (1) When the surface of the heat exchanger needs to be cleaned after a period of heat exchange, the heat exchanger in the support frame is flushed through a spray pipe. The vertical side walls of the straight section and the corrugated section are smooth planes, and the vertical side walls of the heat exchanger have no grooves, which has the effect of easily flushing away impurities on the surface of the heat exchanger, reducing the possibility of impurities accumulating on the surface of the heat exchanger, thereby ensuring the heat exchange efficiency of the heat exchanger.

[0015] (2) The surface of the ceramic layer is relatively smooth, and impurities are not easily accumulated on the surface of the ceramic layer, making it easier to clean impurities on the surface of the heat exchanger.

[0016] (3) After the connecting plate is plugged into the connecting slot, the first magnet is plugged into the plugging slot, and the first magnet and the second magnet are attracted and abutted. The first magnet and the second magnet increase the stability of the plugging of the connecting plate and the connecting slot, thereby increasing the stability of the heat exchange plate when it is placed in the support frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic structural diagram of an embodiment of the present application;

[0019] Figure 2 This is a schematic diagram showing the structure of the straight line segment and the corrugated segment in this embodiment;

[0020] Figure 3 This is a schematic structural diagram of the connecting plate in this embodiment;

[0021] Figure 4 This is a schematic diagram of the structure of the connecting groove in this embodiment;

[0022] Figure 5Schematic diagram of the structure of the ceramic layer in this embodiment;

[0023] Figure 6 This is a schematic diagram of the structure in which the first magnet and the second magnet abut against each other in this embodiment;

[0024] Figure 7 Schematic diagram of the structure of the abutment plate in this embodiment.

[0025] Explanation of the accompanying drawings: 1. Support frame; 11. Connecting groove; 111. Insertion groove; 112. Second magnet; 2. Heat exchange plate; 21. Straight section; 22. Corrugated section; 3. Connecting plate; 31. First magnet; 4. Ceramic layer; 5. Fixing assembly; 51. Fixing rod; 52. Abutment plate; 53. Fixing bolt; 6. Sealing gasket. DETAILED DESCRIPTION

[0026] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] The following is combined with Figure 1 To the attached Figure 7 And specific embodiments discuss the present invention in detail.

[0028] like Figures 1 to 7 As shown, the present invention provides an air preheater heat exchanger fin device that is easy to clean, including a support frame 1, in which a plurality of vertically arranged heat exchanger fins 2 are arranged. Each heat exchanger fin 2 is fixedly connected to a pair of connecting plates 3. The upper surface of the support frame 1 is provided with multiple pairs of connecting grooves 11 downwardly, and each heat exchanger fin 2 corresponds to a pair of connecting grooves 11. The connecting plates 3 are arranged in a one-to-one correspondence with the connecting grooves 11. The connecting plates 3 are plugged into the connecting grooves 11, thereby connecting and fixing the heat exchanger fins 2 to the support frame 1.

[0029] Each heat exchange fin 2 includes a straight section 21 and a corrugated section 22 . The straight section 21 and the corrugated section 22 are connected end to end in sequence. The vertical side walls of the straight section 21 and the corrugated section 22 are both smooth planes.

[0030] When the surface of the heat exchanger 2 needs to be cleaned after the heat exchanger 2 has performed a period of heat exchange work, the heat exchanger 2 in the support frame 1 is flushed through the spray pipe. The vertical side walls of the straight section 21 and the corrugated section 22 are smooth planes, and the vertical side walls of the heat exchanger 2 have no grooves, which has the effect of easily flushing away impurities on the surface of the heat exchanger 2, reducing the possibility of impurities accumulating on the surface of the heat exchanger 2, thereby ensuring the heat exchange efficiency of the heat exchanger 2.

[0031] The vertical side walls of the heat exchanger fins 2 are coated with a ceramic layer 4. The surface of the ceramic layer 4 is relatively smooth, and impurities are not easily accumulated on the surface of the ceramic layer 4, making it easier to clean impurities on the surface of the heat exchanger fins 2.

[0032] A first magnet 31 is fixedly connected to the lower surface of each connecting plate 3. A plugging slot 111 is provided at the bottom of each connecting slot 11, and a second magnet 112 is fixedly connected to the bottom of the plugging slot 111. After the connecting plate 3 is plugged into the connecting slot 11, the first magnet 31 plugs into the plugging slot 111, and the first magnet 31 and the second magnet 112 are attracted and abutted. The first magnet 31 and the second magnet 112 increase the stability of the plugging connection between the connecting plate 3 and the connecting slot 11, thereby increasing the stability of the heat exchange plate 2 when placed within the support frame 1.

[0033] A plurality of fixing components 5 are provided on the upper surface of the support frame 1. The fixing components 5 are arranged in a one-to-one correspondence with the connecting plates 3. After the connecting plates 3 are plugged into the connecting grooves 11, the fixing components 5 fix the connecting plates 3, further increasing the stability of the plugging of the connecting plates 3 into the connecting grooves 11, thereby increasing the stability of the heat exchange plate 2 when placed in the support frame 1.

[0034] Each fixing assembly 5 includes a fixing rod 51 fixedly connected to the upper surface of the support frame 1. The fixing rod 51 is rotatably connected to the abutment plate 52. After the connecting plate 3 is plugged into the connecting groove 11, the abutment plate 52 is rotated so that the lower surface of the abutment plate 52 abuts against the upper surface of the connecting plate 3. The abutment plate 52 presses the top of the connecting plate 3, reducing the possibility of separation of the connecting plate 3 and the connecting groove 11 and increasing the stability of the connection between the connecting plate 3 and the connecting groove 11.

[0035] Each sidewall of the abutment plate 52 is threaded with a fixing bolt 53, which abuts the fixing rod 51. To rotate the abutment plate 52, the fixing bolt 53 is loosened, releasing the restraint on the abutment plate 52. When the abutment plate 52 abuts the upper surface of the connecting plate 3, the fixing bolt 53 is tightened, abutting the fixing rod 51 and securing the abutment plate 52, increasing stability when the abutment plate 52 abuts the upper surface of the connecting plate 3.

[0036] When the heat exchange plate 2 needs to be removed and cleaned or replaced regularly after working for a long time, loosen the fixing bolt 53, rotate the abutment plate 52, the abutment plate 52 releases the restriction on the connecting plate 3, move the heat exchange plate 2 upward, separate the first magnet 31 and the second magnet 112, separate the heat exchange plate 2 from the connecting groove 11, and then remove the heat exchange plate 2, clean or replace the heat exchange plate 2, and then insert the cleaned or replaced heat exchange plate 2 downward into the connecting groove 11, the first magnet 31 and the second magnet 112 abut, rotate the abutment plate 52, make the abutment plate 52 abut against the upper surface of the connecting plate 3, and tighten the fixing bolt 53.

[0037] A pair of vertical sidewalls of the support frame 1 are fixedly connected to sealing gaskets 6. Multiple support frames 1 are mounted on the air preheater, abutting each other in a circle. The air preheater drives the support frames 1 to rotate, which in turn drives the heat exchanger fins 2 to recover waste heat from the flue gas. The sealing gaskets 6 on the sides of two support frames 1 that are close to each other abut each other. This seal enhances the seal between the two support frames 1, reduces the possibility of flue gas passing through the gap between them, and ensures that as much flue gas as possible passes through the heat exchanger fins 2 within the support frames 1, minimizing heat loss.

[0038] The present invention provides an air preheater heat exchanger device that is easy to clean. The principle of the device is as follows: after the heat exchanger 2 performs a period of heat exchange, when the surface of the heat exchanger 2 needs to be cleaned, the heat exchanger 2 in the support frame 1 is flushed through a spray pipe. The vertical side walls of the straight section 21 and the corrugated section 22 are smooth planes, which has the effect of easily flushing away impurities on the surface of the heat exchanger 2. When the heat exchanger 2 needs to be removed for cleaning or replacement after a long period of work, the fixing bolt 53 is loosened, the abutment plate 52 is rotated, the abutment plate 52 releases the restriction on the connecting plate 3, the heat exchanger 2 is moved upward, the first magnet 31 and the second magnet 112 are separated, the heat exchanger 2 is separated from the connecting groove 11, and the heat exchanger 2 is removed. The heat exchanger 2 is cleaned or replaced, and then the cleaned or replaced heat exchanger 2 is inserted downward into the connecting groove 11, the first magnet 31 and the second magnet 112 are abutted, the abutment plate 52 is rotated, and the abutment plate 52 is abutted against the upper surface of the connecting plate 3, and the fixing bolt 53 is tightened.

[0039] The above further describes the present invention with the help of specific embodiments, but it should be understood that the specific description here should not be construed as limiting the essence and scope of the present invention. Various modifications made to the above embodiments by ordinary technicians in this field after reading this specification are all within the scope of protection of the present invention.

Claims

1. An air preheater heat exchanger device that is easy to clean, characterized in that: The invention comprises a support frame (1), wherein a plurality of vertically arranged heat exchange fins (2) are provided inside the support frame (1), and each of the heat exchange fins (2) comprises a straight section (21) and a corrugated section (22) connected end to end in sequence, and the vertical side walls of the straight section (21) and the corrugated section (22) are both smooth planes.

2. The air preheater heat exchanger device that is easy to clean according to claim 1, characterized in that: The surface of the heat exchange plate (2) is coated with a ceramic layer (4).

3. The air preheater heat exchanger device that is easy to clean according to claim 1, characterized in that: Each of the heat exchange plates (2) is fixedly connected to a pair of connecting plates (3); a plurality of pairs of connecting grooves (11) are downwardly provided on the upper surface of the support frame (1); and the connecting plates (3) are plugged into the connecting grooves (11).

4. The air preheater heat exchanger device that is easy to clean according to claim 3, characterized in that: A first magnet (31) is fixedly connected to the lower surface of each connecting plate (3); a plug-in slot (111) for plugging the first magnet (31) is provided at the bottom of the connecting slot (11); a second magnet (112) is fixedly connected to the bottom of the plug-in slot (111); and the first magnet (31) and the second magnet (112) are attracted and abutted against each other.

5. The air preheater heat exchanger device that is easy to clean according to claim 4, characterized in that: A plurality of fixing components (5) for fixing the connecting plates (3) are connected to the upper surface of the support frame (1), and the fixing components (5) are arranged in a one-to-one correspondence with the connecting plates (3).

6. The air preheater heat exchanger device that is easy to clean according to claim 5, characterized in that: The fixing assembly (5) comprises a fixing rod (51) fixedly connected to the upper surface of the support frame (1); the fixing rod (51) is rotatably connected to an abutment plate (52); and the abutment plate (52) abuts against the upper surface of the connecting plate (3).

7. The air preheater heat exchanger device that is easy to clean according to claim 6, characterized in that: The side wall of the abutment plate (52) is threadedly connected with a fixing bolt (53), and the fixing bolt (53) abuts against the fixing rod (51).

8. The air preheater heat exchanger device that is easy to clean according to claim 1, characterized in that: A pair of vertical side walls of the support frame (1) are respectively fixedly connected with sealing pads (6).

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