Plate-type economizer with flow field adjusting structure

Abstract

The utility model discloses a plate-type coal economizer with a flow field adjusting structure, which belongs to the technical field of coal devices and comprises a flow dividing pipeline, a plurality of first flow dividing plates are fixedly connected in the flow dividing pipeline, and the first flow dividing plates are arranged at equal intervals in the horizontal direction, so that the flow dividing pipeline is divided into a plurality of first flues; the heat exchange part comprises a shell, a plurality of second splitter plates arranged at equal intervals are fixedly connected in the shell, the shell is divided into a plurality of second flues by the second splitter plates, the first flues communicate with the second flues, and a heat exchange module is arranged in the shell; and the disturbance part comprises a plurality of disturbance plates rotationally connected with the inner wall of the shell, the multiple disturbance plates are vertically arranged at equal intervals and located between the second splitter plate and the heat exchange module, a driving assembly is arranged in the shell, and the driving assembly is in transmission connection with the multiple disturbance plates. The flue gas flow field distribution uniformity can be improved, meanwhile, the flow direction of the flue gas flow field can be changed, the flue gas flow field can be adjusted, and the heat exchange effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of economizer devices, in particular to a plate-type economizer with a flow field regulating structure. Background Art

[0002] Smoke exhaust loss is the most important heat loss in boiler operation. Economizers are called economizers because they can absorb the heat of low-temperature flue gas, reduce the exhaust temperature of flue gas, save energy and improve efficiency. Installing economizers in the flue at the tail of the boiler can achieve the purpose of deep recovery of flue gas waste heat and reduce coal consumption. When the flue gas in the flue flows, the distribution of the flue gas flow in the flue is not uniform, resulting in uneven flue gas flow in the flue gas flow ducts at different positions in the economizer, and the distribution of the flue gas flow field cannot be adjusted, thereby reducing the heat exchange effect of the economizer.

[0003] Therefore, a plate economizer with a flow field regulating structure is proposed. Utility Model Content

[0004] The utility model aims to provide a plate-type economizer with a flow field regulating structure, aiming to solve or improve at least one of the above-mentioned technical problems.

[0005] To achieve the above-mentioned purpose, the utility model provides the following solution: The utility model provides a plate-type economizer with a flow field adjustment structure, comprising:

[0006] A flow dividing part, the flow dividing part comprises a flow dividing pipe, a plurality of first flow dividing plates are fixedly connected in the flow dividing pipe, and the plurality of first flow dividing plates are arranged at equal intervals in the horizontal direction, so as to divide the flow dividing pipe into a plurality of first flues;

[0007] A heat exchange part, the heat exchange part comprises a shell, a plurality of second diverter plates arranged at equal intervals are fixedly connected in the shell, the plurality of second diverter plates divide the shell into a plurality of second flues, the plurality of first flues are arranged in one-to-one correspondence with the plurality of second flues and are connected, a heat exchange module is arranged in the shell, and the heat exchange module is located at one end of the second diverter plate away from the first diverter plate;

[0008] The disturbance part includes a plurality of disturbance plates rotatably connected to the inner wall of the shell, the plurality of disturbance plates are arranged at equal intervals above and below, the disturbance plates are located between the second diverter plate and the heat exchange module, and a driving assembly is arranged in the shell, and the driving assembly is transmission-connected to the plurality of disturbance plates.

[0009] Preferably, the driving assembly includes a cavity opened on the inner wall of the outer shell, a motor is fixedly connected in the cavity, a light rod is fixedly connected to the output shaft of the motor, and the end of the light rod away from the motor is rotatably connected to the cavity; two ends of the disturbance plate are respectively fixed with rotating shafts, the rotating shafts are rotatably connected to the inside of the outer shell, and the rotating shaft close to the cavity extends into the cavity and is transmission-connected to the light rod.

[0010] Preferably, a plurality of first bevel gears are fixedly connected to the polished rod, a second bevel gear is fixedly connected to the rotating shaft extending into the cavity, and the plurality of first bevel gears are arranged in one-to-one correspondence and meshed with the plurality of second bevel gears.

[0011] Preferably, a connecting pipe is further provided between the diversion pipe and the outer shell, and both ends of the connecting pipe are respectively fixedly connected to and communicated with the diversion pipe and the outer shell, and a plurality of connecting plates are fixedly connected in the connecting pipe, and both ends of the connecting plate are respectively fixedly connected to the first diversion plate and the second diversion plate.

[0012] Preferably, a plurality of slots are formed at one end of the disturbance plate close to the second diverter plate, and the plurality of slots are arranged in one-to-one correspondence with the plurality of second diverter plates, and the second diverter plates extend into the slots and are slidably connected with the slots.

[0013] Preferably, the heat exchange module comprises a plurality of vertically arranged heat exchange plates, the plurality of heat exchange plates are arranged at equal intervals in the horizontal direction, a heat exchange cavity is provided in the heat exchange plates, a water inlet and outlet assembly is fixedly connected to the outer shell, and the water inlet and outlet assembly is connected to the heat exchange cavity.

[0014] Preferably, the water inlet and outlet assembly includes an inlet pipe and an outlet pipe fixedly connected to the outer shell, the inlet pipe sequentially passes through the outer shell and several of the heat exchange plates and is connected to the inner cavity, and the outlet pipe sequentially passes through the outer shell and several of the heat exchange plates and is connected to the heat exchange cavity.

[0015] Preferably, a plurality of arc-shaped strips arranged in sequence are fixedly connected to the outer wall of the heat exchange plate, so that the outer wall of the heat exchange plate presents a corrugated shape.

[0016] The utility model discloses the following technical effects: the flue gas at the tail end of the boiler flue enters the diversion pipe and is gathered, and then is diverted into a plurality of first flues, thereby adjusting the distribution of the flue gas flow field entering the heat exchange module, improving the uniformity of the flue gas distribution, and improving the heat exchange effect with the heat exchange module; the diverted flue gas flows through the second flue and the disturbance plate in sequence, and the driving component can drive the disturbance disturbance plate to deflect up and down, so that when the flue gas flows out from the disturbance plate, the original flow direction of the flue gas flow field is changed, and the flue gas flows out along a curved path, thereby increasing the heat exchange time with the heat exchange module when the flue gas exchanges heat with the heat exchange module, and improving the heat exchange effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0018] Figure 1 It is the front view of the utility model;

[0019] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the driving component in the utility model.

[0021] In the figure: 1. diversion pipe; 2. first diversion plate; 3. first flue; 4. outer shell; 5. second diversion plate; 6. second flue; 7. disturbance plate; 8. cavity; 9. motor; 10. bare rod; 11. rotating shaft; 12. first bevel gear; 13. second bevel gear; 14. connecting pipe; 15. connecting plate; 16. slot; 17. heat exchange plate; 18. water inlet pipe; 19. water outlet pipe; 20. arc strip. DETAILED DESCRIPTION

[0022] 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.

[0023] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0024] Reference Figure 1-Figure 3 The utility model provides a plate-type economizer with a flow field adjustment structure, comprising:

[0025] A flow dividing part, the flow dividing part comprises a flow dividing pipe 1, a plurality of first flow dividing plates 2 are fixedly connected in the flow dividing pipe 1, and the plurality of first flow dividing plates 2 are arranged at equal intervals in the horizontal direction, so as to divide the flow dividing pipe 1 into a plurality of first flues 3;

[0026] The heat exchange part includes a shell 4, a plurality of second diverter plates 5 arranged at equal intervals are fixedly connected to the shell 4, the plurality of second diverter plates 5 divide the shell 4 into a plurality of second flues 6, the plurality of first flues 3 are arranged one-to-one with the plurality of second flues 6 and are connected, a heat exchange module is arranged in the shell 4, and the heat exchange module is located at one end of the second diverter plate 5 away from the first diverter plate 2;

[0027] The disturbance part includes a plurality of disturbance plates 7 rotatably connected to the inner wall of the housing 4. The disturbance plates 7 are arranged at equal intervals up and down, and the disturbance plates 7 are located between the second diverter plate 5 and the heat exchange module. A driving assembly is arranged in the housing 4, and the driving assembly is transmission-connected to the disturbance plates 7.

[0028] The flue gas at the tail end of the boiler flue enters the diversion pipe 1 and is gathered, and then is diverted into several first flues 3, so as to adjust the distribution of the flue gas flow field entering the heat exchange module, improve the distribution uniformity of the flue gas, and improve the heat exchange effect with the heat exchange module; the diverted flue gas flows through the second flue 6 and the disturbance plate 7 in turn, and the driving component can drive the disturbance plate 7 to deflect up and down, so that when the flue gas flows out from the disturbance plate 7, the original flow direction of the flue gas flow field is changed, and the flue gas flows out along a curved path, thereby increasing the heat exchange time with the heat exchange module when the flue gas exchanges heat with the heat exchange module, thereby improving the heat exchange effect.

[0029] Further optimized scheme, the driving assembly includes a cavity 8 opened on the inner wall of the shell 4, a motor 9 is fixedly connected in the cavity 8, a polished rod 10 is fixedly connected to the output shaft of the motor 9, and the end of the polished rod 10 away from the motor 9 is rotatably connected to the cavity 8; the two ends of the disturbance plate 7 are respectively fixedly connected to the rotating shaft 11, the rotating shaft 11 is rotatably connected to the inside of the shell 4, and the rotating shaft 11 close to the cavity 8 extends into the cavity 8 and is transmission-connected to the polished rod 10;

[0030] A plurality of first bevel gears 12 are fixedly connected to the polished rod 10, and a second bevel gear 13 is fixedly connected to the rotating shaft 11 extending into the cavity 8. The plurality of first bevel gears 12 and the plurality of second bevel gears 13 are arranged one by one in correspondence and meshed with each other.

[0031] The motor 9 is a stepper motor, which can drive the polished rod 10 to rotate back and forth. When the motor 9 is started, the first bevel gear 12 on the polished rod 10 is rotated, thereby rotating the second bevel gear 13, thereby driving the interference plate 7 to deflect up and down synchronously, thereby changing the original flow direction of the flue gas flow field, so that the flue gas can flow through the heat exchange module along a curved path.

[0032] To further optimize the solution, a connecting pipe 14 is further provided between the diverter pipe 1 and the outer shell 4, and both ends of the connecting pipe 14 are respectively fixedly connected to and communicated with the diverter pipe 1 and the outer shell 4, and a plurality of connecting plates 15 are fixedly connected in the connecting pipe 14, and both ends of the connecting plate 15 are respectively fixedly connected to the first diverter plate 2 and the second diverter plate 5.

[0033] Further optimizing the scheme, a plurality of slots 16 are provided at one end of the disturbance plate 7 close to the second diverter plate 5, and the plurality of slots 16 are arranged one-to-one correspondingly with the plurality of second diverter plates 5, and the second diverter plates 5 extend into the slots 16 and are slidably connected with the slots 16;

[0034] During the up and down deflection of the disturbance plate 7 , the second diverter plate 5 and the slot 16 slide relative to each other, so that the disturbance plate 7 and the second diverter plate 5 always keep in contact, so that the smoke flows out of the second diverter plate 5 and enters between the disturbance plates 7 .

[0035] Further optimizing the scheme, the heat exchange module includes a plurality of vertically arranged heat exchange plates 17, the plurality of heat exchange plates 17 are arranged at equal intervals in the horizontal direction, a heat exchange cavity is arranged in the heat exchange plate 17, an inlet and outlet water assembly is fixedly connected to the housing 4, and the inlet and outlet water assembly is connected to the heat exchange cavity;

[0036] The water inlet and outlet components include a water inlet pipe 18 and a water outlet pipe 19 fixed to the shell 4. The water inlet pipe 18 sequentially penetrates the shell 4 and a plurality of heat exchange plates 17 and communicates with the heat exchange cavity. The water outlet pipe 19 sequentially penetrates the shell 4 and a plurality of heat exchange plates 17 and communicates with the heat exchange cavity.

[0037] The diverted flue gas enters the flue gas channel between two adjacent heat exchange plates 17 and exchanges heat with the heat exchange plates 17. Since the flow direction of the flue gas flow field passes through the flue gas channel along a curved path, the time for heat exchange with the heat exchange plates 17 can be increased, thereby increasing the heat exchange effect.

[0038] A serpentine water flow channel (not shown) is provided in the heat exchange cavity of the heat exchange plate 17 . Water in the water inlet pipe 18 flows into the water flow channel, exchanges heat with the heat exchange plate 17 during the flow, and then flows out through the water outlet pipe 19 .

[0039] In a further optimized solution, a plurality of arc-shaped strips 20 arranged in sequence are fixedly connected to the outer wall of the heat exchange plate 17, so that the outer wall of the heat exchange plate 17 presents a corrugated shape;

[0040] When the flue gas flows through the flue gas channel between the two heat exchange plates 17 , the corrugated outer wall can disturb the flue gas flow field, causing the flue gas to flow turbulently, thereby increasing the heat exchange effect with the heat exchange plates 17 .

[0041] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0042] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A plate economizer with a flow field adjustment structure, characterized in that: include: A flow dividing portion, the flow dividing portion comprising a flow dividing pipe (1), a plurality of first flow dividing plates (2) being fixedly connected to the flow dividing pipe (1), the plurality of first flow dividing plates (2) being arranged at equal intervals in a horizontal direction, thereby dividing the flow dividing pipe (1) into a plurality of first flues (3); A heat exchange portion, the heat exchange portion comprising a shell (4), a plurality of second flow dividers (5) arranged at equal intervals being fixedly connected to the shell (4), the plurality of second flow dividers (5) dividing the shell (4) into a plurality of second flues (6), the plurality of first flues (3) being arranged in one-to-one correspondence with the plurality of second flues (6) and being connected, a heat exchange module being arranged in the shell (4), the heat exchange module being located at one end of the second flow divider (5) away from the first flow divider (2); A disturbance part, the disturbance part comprising a plurality of disturbance plates (7) rotatably connected to the inner wall of the outer shell (4), the plurality of disturbance plates (7) being arranged at equal intervals up and down, the disturbance plates (7) being located between the second diverter plate (5) and the heat exchange module, and a drive assembly being arranged in the outer shell (4), the drive assembly being transmission-connected to the plurality of disturbance plates (7).

2. The plate-type economizer with a flow field adjustment structure according to claim 1 is characterized in that: The driving assembly comprises a cavity (8) opened on the inner wall of the outer shell (4), a motor (9) is fixedly connected in the cavity (8), a light rod (10) is fixedly connected to the output shaft of the motor (9), and the end of the light rod (10) away from the motor (9) is rotatably connected to the cavity (8); the two ends of the disturbance plate (7) are respectively fixedly connected with a rotating shaft (11), the rotating shaft (11) is rotatably connected to the inside of the outer shell (4), and the rotating shaft (11) close to the cavity (8) extends into the cavity (8) and is transmission-connected to the light rod (10).

3. The plate-type economizer with a flow field adjustment structure according to claim 2 is characterized in that: A plurality of first bevel gears (12) are fixedly connected to the polished rod (10), a second bevel gear (13) is fixedly connected to the rotating shaft (11) extending into the cavity (8), and the plurality of first bevel gears (12) and the plurality of second bevel gears (13) are arranged in one-to-one correspondence and meshed with each other.

4. The plate-type economizer with a flow field adjustment structure according to claim 1, characterized in that: A connecting pipe (14) is further provided between the diverter pipe (1) and the outer shell (4), and two ends of the connecting pipe (14) are respectively fixedly connected to and communicate with the diverter pipe (1) and the outer shell (4). A plurality of connecting plates (15) are fixedly connected in the connecting pipe (14), and two ends of the connecting plates (15) are respectively fixedly connected to the first diverter plate (2) and the second diverter plate (5).

5. The plate-type economizer with a flow field adjustment structure according to claim 1, characterized in that: A plurality of slots (16) are formed at one end of the disturbance plate (7) close to the second diverter plate (5), and the plurality of slots (16) are arranged in one-to-one correspondence with the plurality of second diverter plates (5). The second diverter plates (5) extend into the slots (16) and are slidably connected to the slots (16).

6. The plate-type economizer with a flow field adjustment structure according to claim 1, characterized in that: The heat exchange module comprises a plurality of vertically arranged heat exchange plates (17), wherein the plurality of heat exchange plates (17) are arranged at equal intervals in the horizontal direction, a heat exchange cavity is arranged in the heat exchange plates (17), and a water inlet and outlet assembly is fixedly connected to the outer shell (4), and the water inlet and outlet assembly is in communication with the heat exchange cavity.

7. The plate-type economizer with a flow field adjustment structure according to claim 6, characterized in that: The water inlet and outlet assembly comprises a water inlet pipe (18) and a water outlet pipe (19) fixedly connected to the outer shell (4); the water inlet pipe (18) sequentially passes through the outer shell (4) and the plurality of heat exchange plates (17) and is in communication with the heat exchange chamber; the water outlet pipe (19) sequentially passes through the outer shell (4) and the plurality of heat exchange plates (17) and is in communication with the heat exchange chamber.

8. The plate-type economizer with a flow field adjustment structure according to claim 6, characterized in that: The outer wall of the heat exchange plate (17) is fixedly connected with a plurality of arc-shaped strips (20) arranged in sequence, so that the outer wall of the heat exchange plate (17) presents a corrugated shape.

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