Flue gas waste heat recycling equipment

Abstract

The utility model relates to the technical field of heat energy recovery, in particular to flue gas waste heat recycling equipment which comprises a heat insulation sleeve shell, a heat exchange assembly is arranged in the heat insulation sleeve shell, an air inlet guide pipe is arranged in the center of one side of the heat insulation sleeve shell, a dust filtering assembly is connected in the air inlet guide pipe, and a dust collecting pipe is arranged in the dust filtering assembly. The position of the air inlet guide pipe is right opposite to the position of the heat exchange assembly. An air outlet guide pipe is arranged on one side of the upper surface of the thermal insulation sleeve shell, a vibration guide assembly is connected to the upper surface of the air inlet guide pipe, a vibration motor is installed at the position, close to the vibration guide assembly, of the thermal insulation sleeve shell, the output end of the vibration motor makes contact with the vibration guide assembly, and supporting legs are fixedly arranged on the two sides of the lower surface of the thermal insulation sleeve shell. The flue gas waste heat recovery device solves the problems that when flue gas waste heat recovery is carried out, if flue gas is not filtered in advance and heat exchange is directly carried out, dust in the flue gas adheres to finned tubes in the heat exchanger and is difficult to clean, and the dust in the flue gas can be recycled.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of heat energy recycling field, especially relates to a flue gas waste heat recycling equipment. BACKGROUND

[0002] Industrial field flue gas waste heat is the key factor of restricting energy utilization efficiency, and about 15% of the heat energy of typical equipment such as boiler system is lost through exhaust fume, and the flue gas heat loss of setting machine, drying equipment and various kilns in printing and dyeing industry is as high as 20-35%. The current waste heat recovery technology is often hindered due to the non-configuration of pretreatment system: micron-sized particulate matters in dust-containing flue gas are easy to form dense scale layer on the finned tube surface of heat exchanger, not only reduce the heat transfer coefficient by more than 30%, but also cause the operation and maintenance burden of shutdown and ash removal. It is worth noting that these industrial dusts, as silicon-aluminum-based inorganic materials, have recycling values such as road engineering aggregate, cement admixture and geopolymer raw material after scientific treatment. Therefore, how to clean the dust in flue gas adhered on the finned tube inside the heat exchanger has become an urgent technical requirement for improving industrial energy efficiency. SUMMARY

[0003] The utility model discloses a flue gas waste heat recycling equipment, to solve the problem of the above background art: when flue gas waste heat is recovered, if flue gas is not pre-filtered directly for heat exchange, the dust in flue gas will adhere to the finned tube inside the heat exchanger, which is difficult to clean, and the dust in flue gas can be recycled and reused.

[0004] To achieve the above object, the utility model provides the following technical scheme: a flue gas waste heat recycling equipment, comprising a temperature insulation sleeve, a heat exchange assembly is arranged in the temperature insulation sleeve, a gas inlet pipe is arranged at the center of one side of the temperature insulation sleeve, a dust filter assembly is connected in the gas inlet pipe, and the position of the gas inlet pipe is opposite to the position of the heat exchange assembly;

[0005] One side of the upper surface of the temperature insulation sleeve is provided with a gas outlet pipe, a vibration damping assembly is connected to the upper surface of the gas inlet pipe, a vibration motor is installed near the vibration damping assembly of the temperature insulation sleeve, the output end of the vibration motor is in contact with the vibration damping assembly, and support legs are fixedly arranged on both sides of the lower surface of the temperature insulation sleeve.

[0006] As a preferred scheme of the utility model, the heat exchange assembly comprises a plurality of heat exchange plates, a finned tube is arranged between each heat exchange plate, and the output end and the input end of each finned tube extend to the outside of the temperature insulation sleeve.

[0007] As a preferred scheme of the utility model, the dust filtering assembly comprises two positioning collars, the two positioning collars are fixedly connected with the two sides of the air inlet duct respectively, connecting bolts are connected in the interiors of the two positioning collars, one end of each connecting bolt is fixedly connected with a connecting guide rod, one end of the two connecting guide rods extends to the interior of the air inlet duct, a filtering connecting plate is fixedly connected between the one ends of the two connecting guide rods, and the filtering connecting plate is matched with the size of the air inlet duct.

[0008] As a preferred scheme of the utility model, the vibration guiding assembly comprises two vibration guiding connecting plates, and the two vibration guiding connecting plates are fixedly connected with the top portions of the two sides of the air inlet duct.

[0009] As a preferred scheme of the utility model, the upper surfaces of the two vibration guiding connecting plates are provided with lifting guide rods, and a vibration guiding horizontal plate is inserted between the two lifting guide rods.

[0010] As a preferred scheme of the utility model, reset springs are connected between the vibration guiding horizontal plate and the two vibration guiding connecting plates, the two reset springs are sleeved on the outer sides of the lifting guide rods, and the output end of the vibration motor is in contact with the center of the vibration guiding horizontal plate.

[0011] The technical effects and advantages of the utility model are as follows:

[0012] 1. The dust filtering assembly is arranged, the flue gas entering the heat preservation shell and the heat exchange assembly is pre-filtered, the filtering connecting plate is arranged, the flue gas entering the heat preservation shell is pre-filtered, dust is prevented from adhering to the finned tube, the flue gas enters the air inlet duct during heat exchange, the air force pushes the filtering connecting plate, the connecting bolt and the positioning collar are tightly inserted, the vibration motor and the vibration guiding assembly are arranged, the flue gas dust in the air inlet duct is shaken off, the connecting bolt and the positioning collar are disconnected, the filtering connecting plate is taken out, the dust at the bottom end of the air inlet duct is cleaned out, the dust is recycled, the flue gas is directly heat-exchanged without pre-filtering during flue gas waste heat recovery, the dust in the flue gas is adhered to the finned tube in the heat exchanger, the dust is difficult to clean, and the dust in the flue gas can be recycled.

[0013] 2. The vibration motor vibration end vibrates the vibration guiding horizontal plate, the reset spring is contracted, the vibration guiding horizontal plate hits the surface of the air inlet duct, the flue gas dust in the air inlet duct is shaken off, the reset spring is stretched to quickly reset the vibration guiding horizontal plate after the vibration motor vibration end and the vibration guiding horizontal plate are separated, and the vibration guiding horizontal plate is conveniently hit and vibrated next time. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a whole structure schematic view of the utility model;

[0015] Figure 2 is a structure schematic view of the air inlet duct in the utility model;

[0016] Figure 3 is a partial structure schematic view of the dust filtering assembly in the utility model;

[0017] Figure 4 is a structure schematic view of the heat exchanging assembly in the utility model.

[0018] The signs in the drawings are as follows:

[0019] 1, temperature insulation shell; 2, air inlet duct; 3, air outlet duct; 4, heat exchanging assembly; 401, heat exchanging connecting plate; 402, finned tube; 5, dust filtering assembly; 501, positioning collar; 502, connecting bolt; 503, connecting guide rod; 504, filtering connecting plate; 6, vibration guiding assembly; 601, vibration guiding connecting plate; 602, lifting guide rod; 603, vibration guiding cross plate; 604, reset spring; 7, vibration motor; 8, supporting leg. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] It should be noted that, in the description of the utility model, unless otherwise explicitly specified and limited, the terms "arrange", "install", "connect", "connect", "fix" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0022] The standard parts used in the utility model can be purchased from the market, and the special-shaped parts can be ordered according to the description and the drawings.

[0023] For example, Figures 1-4The utility model provides a flue gas waste heat recycling equipment, including temperature insulation casing 1, the inside installation of heat exchange subassembly 4 of temperature insulation casing 1, the center of temperature insulation casing 1 one side installs and admits the air duct 2, admits the air duct 2 inside to be connected with filter dust subassembly 5, admits the air duct 2 and heat exchange subassembly 4 position is opposite, the upper surface of temperature insulation casing 1 one side is provided with and admits the air duct 3, the upper surface of admits the air duct 2 and be connected with guide vibration subassembly 6, temperature insulation casing 1 is close to guide vibration subassembly 6 place and installs vibration motor 7, and the output of vibration motor 7 and guide vibration subassembly 6 contact, temperature insulation casing 1 lower surface both sides are fixedly provided with support leg 8,

[0024] Heat exchange subassembly 4 includes multiple sets of heat exchange connecting plates 401, a finned tube 402 is installed between each set of heat exchange connecting plates 401, the output end and input end of each finned tube 402 extend to the outside of the temperature insulation casing 1, the filter dust subassembly 5 includes two positioning rings 501, the two positioning rings 501 are fixedly connected to the two sides of the air inlet pipe 2, a connecting pin 502 is connected inside the two positioning rings 501, one end of each connecting pin 502 is fixedly connected to a connecting guide rod 503, one end of the two connecting guide rods 503 extends to the inside of the air inlet pipe 2, a filter plate 504 is fixedly connected between the two ends of the two connecting guide rods 503, the filter plate 504 is adapted to the size of the air inlet pipe 2, the guide vibration subassembly 6 includes two guide vibration plates 601, the two guide vibration plates 601 are fixedly connected to the top of the two sides of the air inlet pipe 2, a lifting guide rod 602 is arranged on the upper surface of the two guide vibration plates 601, a guide vibration plate 603 is inserted between the two lifting guide rods 602, a return spring 604 is connected between the guide vibration plate 603 and the two guide vibration plates 601, the two return springs 604 are sleeved on the outside of the lifting guide rod 602, and the output end of the vibration motor 7 is in contact with the center of the guide vibration plate 603.

[0025] The utility model discloses a working principle: through the filter dust subassembly 5 can carry out preliminary filtration to the flue gas that enters the heat exchange of heat exchange subassembly 4 in the temperature insulation sleeve shell 1 inside, through the filter connecting plate 504 that setting can carry out preliminary filtration to the flue gas that enters the temperature insulation sleeve shell 1 inside, avoid dust to contaminate on the finned tube 402, since the flue gas from the air inlet pipe 2 enters when heat exchange, its wind power promotes filter connecting plate 504, makes connecting bolt 502 and positioning ring 501 insert joint closely, through the vibration motor 7 and guide vibration subassembly 6 that setting can make the flue gas dust of air inlet pipe 2 inner wall vibrate and fall, through the split connecting bolt 502 and positioning ring 501, take out filter connecting plate 504, filter connecting plate 504 will vibrate and fall in the dust of air inlet pipe 2 inner wall bottom end and clean out, recycle and utilize, through the vibration end of vibration motor 7 setting vibrates guide vibration horizontal plate 603 and presses down, makes reset spring 604 contract, and guide vibration horizontal plate 603 hits the surface of air inlet pipe 2, makes the flue gas dust of air inlet pipe 2 inner wall vibrate and fall, when vibration motor 7 vibration end and guide vibration horizontal plate 603 separate, reset spring 604 makes guide vibration horizontal plate 603 fast reset, facilitate next time impact vibration.

[0026] Although the embodiments of the utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made thereto without departing from the principles and spirit of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A flue gas waste heat recovery and utilization device, comprising an insulating housing (1), characterized in that: The heat insulation shell (1) is provided with a heat exchange component (4) inside. An air inlet duct (2) is provided at the center of one side of the heat insulation shell (1). A dust filter component (5) is connected inside the air inlet duct (2). The position of the air inlet duct (2) is directly opposite the position of the heat exchange component (4). An air outlet duct (3) is provided on one side of the upper surface of the heat insulation shell (1). A vibration guide assembly (6) is connected to the upper surface of the air inlet duct (2). A vibration motor (7) is installed on the heat insulation shell (1) near the vibration guide assembly (6). The output end of the vibration motor (7) is in contact with the vibration guide assembly (6). Support legs (8) are fixedly provided on both sides of the lower surface of the heat insulation shell (1).

2. The flue gas waste heat recovery and utilization equipment according to claim 1, characterized in that: The heat exchange assembly (4) includes multiple sets of heat exchange connecting plates (401), and finned tubes (402) are installed between each set of heat exchange connecting plates (401). The output end and input end of each finned tube (402) extend to the outside of the heat insulation shell (1).

3. The flue gas waste heat recovery and utilization equipment according to claim 1, characterized in that: The dust filter assembly (5) includes two positioning collars (501), which are fixedly connected to both sides of the air intake duct (2). A connecting pin (502) is inserted inside each of the two positioning collars (501). A connecting guide rod (503) is fixedly connected to one end of each connecting pin (502). One end of each connecting guide rod (503) extends into the air intake duct (2). A filter connecting plate (504) is fixedly connected between one end of each connecting guide rod (503). The filter connecting plate (504) is adapted to the size of the air intake duct (2).

4. The flue gas waste heat recovery and utilization equipment according to claim 1, characterized in that: The vibration guiding assembly (6) includes two vibration guiding connecting plates (601), which are fixedly connected to the top of both sides of the air intake duct (2).

5. The flue gas waste heat recovery and utilization equipment according to claim 4, characterized in that: The upper surfaces of the two vibration guide plates (601) are provided with lifting guide rods (602), and a vibration guide cross plate (603) is inserted between the two lifting guide rods (602).

6. The flue gas waste heat recovery and utilization equipment according to claim 5, characterized in that: A return spring (604) is connected between the guide plate (603) and the two guide plates (601). The two return springs (604) are sleeved on the outside of the lifting guide rod (602). The output end of the vibration motor (7) is in contact with the center of the guide plate (603).

Images