Economizer performance improving device

Abstract

The utility model relates to the technical field of economizers, in particular to an economizer performance improving device which comprises a performance improving assembly, the performance improving assembly is fixedly connected to a smoke inlet of an economizer, the performance improving assembly comprises a smoke filtering assembly, the smoke filtering assembly is connected with a smoke sucking assembly in a sleeved mode, and the smoke filtering assembly comprises an annular bottom plate. A sleeve shell is fixedly connected to the annular bottom plate, a top plate is fixedly connected to the lower end of the connecting column, a filtering sleeve is clamped between the top plate and the annular bottom plate, and a filtering cotton sleeve is attached to the outside of the filtering sleeve. The smoke filtering assembly is arranged at the smoke inlet, smoke enters from the smoke inlet and penetrates through the filtering holes of the filtering sleeve, large-diameter impurities in the smoke are isolated outside, the smoke passes through the filtering sleeve and then passes through the filtering cotton sleeve, the filtering cotton sleeve adsorbs small-diameter impurities in the smoke, and the smoke subjected to double filtering is discharged from the flue to the smoke outlet. Dust can be prevented from precipitating in the economizer to influence the heat exchange effect of the economizer, so that the performance of the economizer is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of economizers, and in particular to a device for improving the performance of economizers. Background Art

[0002] Economizer is a device installed at the bottom of the flue at the tail end of the boiler to recover the waste heat of the exhaust gas. It heats the boiler feed water into a heating surface of saturated water under drum pressure. Because it absorbs the heat of high-temperature flue gas, it reduces the exhaust temperature of the flue gas, saves energy and improves efficiency, so it is called economizer.

[0003] A search of a Chinese patent with publication number CN204345927U disclosed an economizer.

[0004] The above technical solution includes a flue, an inlet header, an outlet header and a heat exchange tube row. The inlet header and the outlet header are long cylinders extending in the front-to-back direction and two inlet headers and two outlet headers are symmetrically arranged on the left and right side walls of the flue. The heat exchange tube row includes an even number of unit tube rows arranged at intervals in the front-to-back direction. Each unit tube row is divided into a left part and a right part and the two parts of the unit tube rows are connected to the inlet header and the outlet header on the left and right sides respectively. The unit tube row on the left part is cross-arranged with the unit tube row on the right part. Pipe clamps are installed on the unit tube rows, and a pipe clamp support frame is fixed on the inner wall of the flue. The utility model can ensure sufficient heating area, can effectively control resistance and flow rate, and has a simple overall structure, convenient modification, and good heat exchange effect.

[0005] However, in the above scheme, the dust generated in the flue gas during the use of this technology will slowly accumulate in the economizer. The dust in the economizer will reduce the heat exchange effect and affect the use of the economizer.

[0006] To this end, we propose a device to improve the performance of economizer. Utility Model Content

[0007] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a device for improving the performance of an economizer.

[0008] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme, a performance improvement device for an economizer, including a performance improvement component, characterized in that: the performance improvement component is fixedly connected to the flue gas inlet of the economizer, the performance improvement component includes a smoke filter component, the smoke filter component is sleeved with a smoking component, the smoke filter component includes an annular bottom plate, a sleeve is fixedly connected to the annular bottom plate, a plurality of connecting columns are fixedly connected to the top side of the sleeve, a top plate is fixedly connected to the lower end of the connecting column, a filter sleeve is clamped between the top plate and the annular bottom plate, and a filter cotton sleeve is attached to the outside of the filter sleeve.

[0009] Preferably, a smoke inlet is provided on the annular bottom plate, a bottom plate clamping ring for clamping the filter sleeve is fixedly connected to the upper end of the annular bottom plate, and a top plate clamping ring for clamping the filter sleeve is also fixedly connected to the lower end of the top plate.

[0010] Preferably, a flue is provided between the filter cotton sleeve and the casing, the flue is connected to a smoke outlet, the smoke outlet is provided at the top of the casing, and a plurality of filter holes are provided on the filter sleeve.

[0011] Preferably, a smoking assembly is fixedly connected to the upper end of the shell, and the smoking assembly includes a support tube connected to the smoke outlet, a motor bracket is fixedly connected inside the support tube, a motor is fixedly connected to one side of the motor bracket, a transmission shaft is fixedly connected to the output end of the motor, the transmission shaft is rotatably connected to the transmission shaft bracket, and the transmission shaft bracket is fixedly connected to the annular bottom plate.

[0012] Preferably, a connecting bearing is sleeved on the transmission shaft, the connecting bearing is sleeved on the mounting hole, and the mounting hole is opened at the center of the top plate.

[0013] Preferably, a first blade group sleeved on a transmission shaft is arranged at the upper end of the connecting bearing, and the first blade group includes a first blade sleeve, and a first blade is arranged around the first blade sleeve.

[0014] Preferably, a second blade group sleeved on the transmission shaft is arranged at the lower end of the connecting bearing, and the second blade assembly includes a second blade sleeve, thrust rings are arranged at both ends of the second blade sleeve, and a plurality of second blades are arranged in an array outside the second blade sleeve.

[0015] The utility model provides a device for improving the performance of an economizer, which has the following improvements and advantages compared with the prior art:

[0016] (1) The utility model adopts a performance improvement component fixedly connected to the flue gas inlet of the economizer, and the performance improvement component includes a smoke filter component, which includes an annular bottom plate, a casing is fixedly connected to the annular bottom plate, a plurality of connecting columns are fixedly connected to the top side of the casing, a top plate is fixedly connected to the lower end of the connecting column, a filter sleeve is clamped between the top plate and the annular bottom plate, a filter cotton sleeve is attached to the outside of the filter sleeve, a smoke inlet is opened on the annular bottom plate, a bottom plate clamping ring for clamping the filter sleeve is fixedly connected to the upper end of the annular bottom plate, and a bottom plate clamping ring for clamping the filter sleeve is also fixedly connected to the lower end of the top plate. A flue is arranged between the top plate clamp ring, the filter sleeve and the sleeve shell, the flue is connected to a smoke outlet, the smoke outlet is opened at the top of the sleeve shell, a number of filter holes are opened on the filter sleeve, and a smoke filter assembly is arranged at the smoke inlet. The smoke enters from the smoke inlet, passes through the filter holes of the filter sleeve, and large-diameter impurities in the smoke are isolated from the outside. After passing through the filter sleeve, the smoke passes through the filter sleeve and then the filter sleeve. The filter sleeve absorbs small-diameter impurities in the smoke. The double-filtered smoke is discharged from the flue to the smoke outlet, which can prevent dust from settling in the economizer and affecting the heat exchange effect of the economizer, thereby improving the performance of the economizer.

[0017] (2) The utility model adopts a smoke filter component sleeved with a smoking component, and the upper end of the sleeve is fixedly connected to the smoking component. The smoking component includes a support tube connected to the smoke outlet, a motor bracket is fixedly connected inside the support tube, a motor is fixedly connected to one side of the motor bracket, a transmission shaft is fixedly connected to the output end of the motor, the transmission shaft is rotatably connected to the transmission shaft bracket, the transmission shaft bracket is fixedly connected to the annular bottom plate, a connecting bearing is sleeved on the transmission shaft, the connecting bearing is sleeved on the mounting hole, the mounting hole is opened at the center of the top plate, and a first fan blade group is arranged on the upper end of the connecting bearing, and the first fan blade group includes a first A blade sleeve, a first blade is arranged around the outside of the first blade sleeve, a second blade group is arranged at the lower end of the connecting bearing, the second blade assembly includes a second blade sleeve, thrust rings are arranged at both ends of the second blade sleeve, and a plurality of second blades are arranged in an array outside the second blade sleeve. By arranging the first fan assembly, the exhaust speed of smoke in the flue can be increased, and the smoke exhaust speed of the device is increased. The second blade assembly is arranged to increase the air intake of the smoke filter assembly, speed up the smoke filtration speed, and improve the smoke filtration efficiency, thereby effectively increasing the filtration volume of the device and improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0019] Figure 1It is a three-dimensional schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a three-dimensional schematic diagram of the structure of the performance improvement component in the utility model;

[0021] Figure 3 It is a three-dimensional schematic diagram of the cross-sectional structure of the smoke filter assembly in the utility model;

[0022] Figure 4 It is a schematic structural stereogram of the smoking assembly in the utility model.

[0023] Legend:

[0024] 10. Economizer; 11. Flue gas inlet; 20. Performance improvement component; 30. Smoke filter component; 31. Annular bottom plate; 32. Bottom plate clamping ring; 33. Filter sleeve; 34. Filter hole; 35. Filter cotton sleeve; 36. Sleeve shell; 37. Flue; 38. Top plate; 39. Top plate clamping ring; 40. Mounting hole; 41. Connecting column; 42. Smoke outlet; 43. Smoke inlet; 50. Smoke suction component; 51. Support pipe; 52. Motor bracket; 53. Motor; 54. Drive shaft; 55. Drive shaft bracket; 56. First fan blade group; 57. Connecting bearing; 58. Thrust ring; 59. Second fan blade group; 60. Second fan blade; 61. Second fan blade sleeve; 62. First fan blade; 63. First fan blade sleeve. DETAILED DESCRIPTION

[0025] Below, the invention is further described in conjunction with the accompanying drawings and specific embodiments:

[0026] Example 1

[0027] See also Figures 1 to 3Embodiment 1 is described, including a performance improvement component 20, the performance improvement component 20 is fixedly connected to the flue gas inlet 11 of the economizer 10, the performance improvement component 20 includes a smoke filter component 30, the function of the smoke filter component 30 is to filter dust in the smoke, the smoke filter component 30 is sleeved with a smoking component 50, the smoke filter component 30 includes an annular bottom plate 31, the annular bottom plate 31 is fixedly connected to the smoke gas inlet 11, a sleeve 36 is fixedly connected to the annular bottom plate 31, the sleeve 36 restricts the smoke in the device, a plurality of connecting columns 41 are fixedly connected to the top side of the sleeve 36, the lower end of the connecting column 41 is fixedly connected to the top plate 38, that is, there is a gap between the sleeve 36 and the top plate 38 for the smoke to pass through, a filter sleeve 33 is clamped between the top plate 38 and the annular bottom plate 31, the function of the filter sleeve 33 is to The function of the filter sleeve 33 is to filter large diameter impurities. A filter cotton sleeve 35 is attached to the outside of the filter sleeve 33. The function of the filter cotton sleeve 35 is to absorb small diameter impurities. The material of the filter cotton sleeve 35 can be common high temperature resistant filter cotton. A smoke inlet 43 is provided on the annular bottom plate 31. The function of the smoke inlet 43 is to allow smoke to enter the device. The upper end of the annular bottom plate 31 is fixedly connected with a bottom plate clamping ring 32 for clamping the filter sleeve 33. The lower end of the top plate 38 is also fixedly connected with a top plate clamping ring 39 for clamping the filter sleeve 33. A flue 37 is provided between the filter cotton sleeve 35 and the casing 36. The function of the flue 37 is to discharge the filtered smoke. The flue 37 is connected with a smoke outlet 42. The smoke outlet 42 is provided at the top of the casing 36. A plurality of filter holes 34 are provided on the filter sleeve 33. The filter holes 34 filter large diameter impurities.

[0028] In the present embodiment, a smoke filter assembly 30 is provided at the smoke inlet 11, and the smoke enters from the smoke inlet 43, passes through the filter holes 34 of the filter sleeve 33, and isolates large-diameter impurities in the smoke. After passing through the filter sleeve 33, the smoke passes through the filter cotton sleeve 35, and the filter cotton sleeve 35 absorbs small-diameter impurities in the smoke. The smoke after double filtration is discharged from the flue 37 to the smoke outlet 42, which can prevent dust from settling in the economizer 10 and affecting the heat exchange effect of the economizer 10, thereby improving the performance of the economizer 10.

[0029] Example 2

[0030] See also Figure 3 and Figure 4Embodiment 2 is described. Embodiment 2 is a supplement to Embodiment 1, including a smoking assembly 50 fixedly connected to the upper end of the sleeve shell 36. The function of the smoking assembly 50 is to accelerate the efficiency of smoke passing through the filter assembly. The smoking assembly 50 includes a support tube 51 connected to the smoke outlet 42. The function of the support tube 51 is similar to that of a chimney, and it also provides installation support for the smoking assembly 50. A motor bracket 52 is fixedly connected in the support tube 51. The motor bracket 52 is used to install a motor 53. A motor 53 is fixedly connected to one side of the motor bracket 52. A transmission shaft 54 ​​is fixedly connected to the output end of the motor 53. The motor 53 drives the transmission shaft 54 ​​to rotate. The transmission shaft 54 ​​is rotatably connected to the transmission shaft bracket 55. The transmission shaft bracket 55 is used to support the transmission shaft 54. The transmission shaft bracket 55 is fixedly connected in the annular bottom plate 31. The transmission shaft bracket 55 is fixed on the annular bottom plate 31. A connecting bearing 57 is sleeved on the transmission shaft 54. The connecting bearing 57 has sealing performance. The connecting bearing 57 is sleeved on the mounting hole 40. The hole 40 is opened at the center of the top plate 38. The upper end of the connecting bearing 57 is provided with a first blade group 56. The function of the first blade group 56 is to increase the exhaust speed of the smoke in the flue 37. The first blade group 56 includes a first blade sleeve 63. The first blade sleeve 63 is surrounded by a first blade 62. The transmission shaft 54 ​​drives the first blade sleeve 63 to rotate. The first blade sleeve 63 drives the first blade 62 to rotate. The lower end of the connecting bearing 57 is provided with a second blade group 59. The second blade group 59 is provided with a second blade group 59. 9 is arranged in the filter assembly to improve the passing efficiency of the smoke in the filter assembly, thereby improving the filtering efficiency of the filter assembly. The second fan blade group 59 includes a second fan blade sleeve 61. Both ends of the second fan blade sleeve 61 are provided with thrust rings 58. The function of the thrust ring 58 is to prevent the second fan blade group 59 from slipping. A plurality of second fan blades 60 are arranged in an array outside the second fan blade sleeve 61. The transmission shaft 54 ​​drives the second fan blade sleeve 61 to rotate, and the second fan blade sleeve 61 drives the second fan blade 60 to rotate.

[0031] In this embodiment, by setting up the first fan assembly, the exhaust speed of the smoke in the flue 37 can be increased, thereby increasing the smoke exhaust speed of the device. The second fan blade group 59 is set to increase the air intake of the smoke filter assembly 30, accelerate the speed of smoke filtration, and improve the smoke filtration efficiency, thereby effectively increasing the filtration volume of the device and improving the practicality of the device.

Claims

1. A performance improvement device for an economizer (10), comprising a performance improvement component (20), characterized in that: The performance improvement component (20) is fixedly connected to the flue gas inlet (11) of the economizer (10), and the performance improvement component (20) includes a smoke filter component (30), and the smoke filter component (30) is sleeved with a smoking component (50), and the smoke filter component (30) includes an annular bottom plate (31), and a sleeve (36) is fixedly connected to the annular bottom plate (31), and a plurality of connecting columns (41) are fixedly connected to the top side of the sleeve (36), and the lower end of the connecting column (41) is fixedly connected to a top plate (38), and a filter sleeve (33) is clamped between the top plate (38) and the annular bottom plate (31), and a filter cotton sleeve (35) is attached to the outside of the filter sleeve (33).

2. The economizer (10) performance improvement device according to claim 1, characterized in that: The annular bottom plate (31) is provided with a smoke inlet (43), the upper end of the annular bottom plate (31) is fixedly connected to a bottom plate clamping ring (32) for clamping the filter sleeve (33), and the lower end of the top plate (38) is also fixedly connected to a top plate clamping ring (39) for clamping the filter sleeve (33).

3. The economizer (10) performance improvement device according to claim 1, characterized in that: A flue (37) is provided between the filter cotton sleeve (35) and the sleeve shell (36); the flue (37) is connected to a smoke outlet (42); the smoke outlet (42) is provided at the top of the sleeve shell (36); and a plurality of filter holes (34) are provided on the filter sleeve (33).

4. The economizer (10) performance improvement device according to claim 3, characterized in that: The upper end of the sleeve (36) is fixedly connected to a smoking assembly (50), the smoking assembly (50) comprising a support tube (51) connected to a smoke outlet (42), a motor bracket (52) being fixedly connected inside the support tube (51), a motor (53) being fixedly connected to one side of the motor bracket (52), a transmission shaft (54) being fixedly connected to an output end of the motor (53), the transmission shaft (54) being rotatably connected to a transmission shaft bracket (55), and the transmission shaft bracket (55) being fixedly connected inside the annular bottom plate (31).

5. The economizer (10) performance improvement device according to claim 4, characterized in that: A connecting bearing (57) is sleeved on the transmission shaft (54), and the connecting bearing (57) is sleeved on the mounting hole (40). The mounting hole (40) is opened at the center of the top plate (38).

6. The economizer (10) performance improvement device according to claim 5, characterized in that: A first blade group (56) is arranged at the upper end of the connecting bearing (57), and the first blade group (56) includes a first blade sleeve (63), and a first blade (62) is arranged around the first blade sleeve (63).

7. The economizer (10) performance improvement device according to claim 5, characterized in that: A second blade group (59) is arranged at the lower end of the connecting bearing (57), and the second blade group (59) includes a second blade sleeve (61). Thrust rings (58) are arranged at both ends of the second blade sleeve (61), and a plurality of second blades (60) are arranged in an array outside the second blade sleeve (61).

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