Purging device for tube bundle of heat exchanger of waste heat boiler
By designing an automated waste heat boiler heat exchanger tube purge device, efficient and automated dust cleaning is achieved using fans and regulating mechanisms. This solves the problems of increased labor intensity and incomplete cleaning caused by manual operation, and achieves energy saving.
Patent Information
- Application Number
- CN202520271171.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-02-20
AI Technical Summary
The existing waste heat boiler heat exchanger tube purge device requires manual operation, which increases labor intensity and is prone to missed purging, resulting in incomplete cleaning.
A cleaning device comprising a dust cover, a connecting plate, a diverter plate, and a cleaning head has been designed. Equipped with a fan and an adjustment mechanism, it achieves automated cleaning through high-pressure gas cleaning and angle adjustment.
It reduces labor intensity, improves cleaning efficiency, ensures thorough removal of dust from boiler surfaces, and saves energy.
Smart Images

Figure CN223795878U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of boiler cleaning devices, specifically to a purging device for the tube bank of a waste heat boiler heat exchanger. Background Technology
[0002] During use, boilers accumulate a lot of dust on their surface due to environmental factors. If this dust is not cleaned in time, it will weaken the filtration and heat dissipation effect, resulting in high temperatures and a reduced boiler lifespan.
[0003] When cleaning the surface of the heat exchanger tubes of a waste heat boiler, a purging device is used. However, most existing purging devices require workers to manually hold a spray gun to purge the heat exchanger tubes, which not only increases the labor intensity of the workers, but also makes it easy to miss some parts during the purging process.
[0004] There are currently no effective solutions to the problems in the relevant technologies. Utility Model Content
[0005] In view of the problems in the related technologies, this utility model proposes a purging device for the tube bank of a waste heat boiler heat exchanger to overcome the above-mentioned technical problems existing in the existing related technologies.
[0006] Therefore, the specific technical solution adopted by this utility model is as follows:
[0007] A purging device for the tube bank of a waste heat boiler heat exchanger includes a waste heat boiler body and a purging mechanism. The purging mechanism is located on the top of the waste heat boiler body and includes a dust cover. A connecting plate is vertically arranged at the bottom of the dust cover. A diversion plate is provided on one side of the connecting plate. A plurality of evenly distributed and inclined purging heads are provided on one side of the diversion plate. A fan is provided on the top of the waste heat boiler body and connected to the diversion plate through a flexible hose. An adjustment mechanism for adjusting the angle of the diversion plate is provided on one side of the connecting plate.
[0008] Preferably, the adjusting mechanism includes a driven gear, which is movably connected to the connecting plate via a rotating shaft. A connecting sleeve is provided on one side of the driven gear, and a matching shaft is movably fitted inside the connecting sleeve. A connecting post connected to the diverter plate is provided on one side of the shaft.
[0009] Preferably, the driven gear has a transmission gear meshing with it at its top, and the axis of the transmission gear is connected to the motor output shaft on the connecting plate.
[0010] Preferably, the adjusting mechanism further includes a connecting seat located above the driven gear, one side of the connecting seat being connected to the connecting plate, a vertically arranged shaft two being movably connected to the connecting seat, and a motor two being connected to the top of the shaft two.
[0011] Preferably, the bottom of the shaft 2 is provided with four sets of evenly distributed drive shafts 1, each drive shaft 1 having a universal joint at its bottom end, and the other end of the shaft 1 having four sets of drive shafts 2 connected to the universal joints.
[0012] Preferably, the connecting plate is provided with symmetrically arranged limiting posts on one side of the driven gear, and the side of the driven gear is provided with a limiting rod that cooperates with the limiting posts.
[0013] Preferably, the diameter of the driven gear is larger than the diameter of the transmission gear.
[0014] The beneficial effects of this utility model are as follows: the high-pressure gas generated by the blower is sprayed out through the blower head to blow the surface of the waste heat boiler body, thereby reducing the dust accumulation on the surface of the waste heat boiler body and achieving the effect of saving energy and cleaning the dust on the surface of the waste heat boiler body; the setting of the adjustment mechanism can adjust the angle of the diverter plate, thereby changing the blowing range and angle of the blower head, further improving the blowing effect. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the structure of a purging device for a waste heat boiler heat exchanger tube bank according to an embodiment of the present utility model;
[0017] Figure 2 This is a schematic diagram of the adjusting mechanism in a purging device for a waste heat boiler heat exchanger tube bank according to an embodiment of the present utility model.
[0018] Figure 3 This is a side view of the diversion plate in a purging device for a waste heat boiler heat exchanger tube bank according to an embodiment of the present utility model.
[0019] In the picture:
[0020] 1. Waste heat boiler body; 2. Dust cover; 3. Connecting plate; 4. Diverter plate; 5. Purge head; 6. Hose; 7. Fan; 8. Driven gear; 9. Connecting sleeve; 10. Shaft one; 11. Connecting column; 12. Transmission gear; 13. Connecting seat; 14. Shaft two; 15. Motor two; 16. Transmission shaft one; 17. Universal joint; 18. Transmission shaft two; 19. Limiting column; 20. Limiting rod. Detailed Implementation
[0021] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.
[0022] According to an embodiment of the present invention, a purging device for the tube bank of a waste heat boiler heat exchanger is provided.
[0023] Example 1;
[0024] like Figure 1-3 As shown, the purging device for the heat exchanger tube bank of the waste heat boiler according to an embodiment of the present utility model includes a waste heat boiler body 1 and a purging mechanism. The purging mechanism is located at the top of the waste heat boiler body 1. The purging mechanism includes a dust cover 2, a connecting plate 3 vertically arranged at the bottom of the dust cover 2, a diversion plate 4 on one side of the connecting plate 3, and a plurality of evenly distributed and inclined purging heads 5 on one side of the diversion plate 4. A fan 7 connected to the diversion plate 4 via a flexible hose 6 is provided at the top of the waste heat boiler body 1. An adjustment mechanism for adjusting the angle of the diversion plate 4 is provided on one side of the connecting plate 3.
[0025] Example 2;
[0026] like Figure 1-3 As shown, the adjustment mechanism includes a driven gear 8, which is movably connected to the connecting plate 3 via a rotating shaft. A connecting sleeve 9 is provided on one side of the driven gear 8, and a matching shaft 10 is movably fitted inside the connecting sleeve 9. A connecting post 11 connected to the diverter plate 4 is provided on one side of the shaft 10. A transmission gear 12 meshes with the driven gear 8 at its top. The axis of the transmission gear 12 is connected to the output shaft of a motor on the connecting plate 3. The adjustment mechanism also includes a connecting seat 13 located above the driven gear 8. One side of the connecting seat 13 is connected to the connecting plate 3. A vertically arranged shaft 14 is movably connected to the connecting seat 13, and a motor 15 is connected to the top of the shaft 14.
[0027] Example 3;
[0028] like Figure 1-3 As shown, the bottom of the shaft 14 has four sets of evenly distributed drive shafts 16, and the bottom end of each drive shaft 16 is provided with a universal joint 17. The other end of the shaft 10 has four sets of drive shafts 18 that are connected to the universal joints 17. The connecting plate 3 is provided with symmetrically arranged limiting posts 19 on one side of the driven gear 8. The side of the driven gear 8 is provided with a limiting rod 20 that cooperates with the limiting post 19. The diameter of the driven gear 8 is larger than the diameter of the drive gear 12.
[0029] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.
[0030] In practical applications, the high-pressure gas generated by the fan 7 is guided through the hose into the distribution plate 4. The gas blowing head 5 in the distribution plate 4 is ejected to blow the surface of the waste heat boiler body 1. When it is necessary to adjust the blowing range of the blowing head 5, the first motor can be started to drive the transmission gear 12 to rotate in both directions. The transmission gear 12 meshes with the driven gear 8 to drive the connecting sleeve 9 to rotate. The connecting sleeve 9 drives the distribution plate 4 to rotate in the left and right directions through the connecting column 11, thereby completing the adjustment of the blowing range of the blowing head 5. Meanwhile, the operation of the second motor 15 drives the second shaft 14 to rotate. The second shaft 14 drives the second transmission shaft 18 to rotate through the universal joint 17. This causes the second transmission shaft 18 to drive the first shaft 10 to rotate in the connecting sleeve 9. The first shaft 10 drives the distribution plate 4 to rotate in the front and back directions through the connecting column 11, further changing the blowing range and angle of the blowing head 5 and improving the blowing effect.
[0031] In summary, by means of the above-mentioned technical solution of this utility model, the high-pressure gas generated by the blower 7 is sprayed out through the blower head 5 to blow the surface of the waste heat boiler body 1, thereby reducing the dust accumulated on the surface of the waste heat boiler body 1 and achieving the effect of saving energy to clean the dust on the surface of the waste heat boiler body 1; and the setting of the adjustment mechanism can adjust the angle of the diverter plate 4, thereby changing the blowing range and angle of the blower head 5, further improving the blowing effect.
[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A purging device for the tube bank of a waste heat boiler heat exchanger, characterized in that, The system includes a waste heat boiler body (1) and a purging mechanism. The purging mechanism is located on the top of the waste heat boiler body (1). The purging mechanism includes a dust cover (2), a vertically arranged connecting plate (3) at the bottom of the dust cover (2), a diversion plate (4) on one side of the connecting plate (3), and several evenly distributed inclined purging heads (5) on one side of the diversion plate (4). A fan (7) connected to the diversion plate (4) via a hose (6) is provided on the top of the waste heat boiler body (1). An adjustment mechanism for adjusting the angle of the diversion plate (4) is provided on one side of the connecting plate (3).
2. The purging device for the tube bank of a waste heat boiler heat exchanger according to claim 1, characterized in that, The adjustment mechanism includes a driven gear (8), which is movably connected to the connecting plate (3) via a rotating shaft. A connecting sleeve (9) is provided on one side of the driven gear (8), and a matching shaft (10) is movably fitted inside the connecting sleeve (9). A connecting column (11) connected to the diverter plate (4) is provided on one side of the shaft (10).
3. The purging device for the tube bank of a waste heat boiler heat exchanger according to claim 2, characterized in that, The driven gear (8) has a transmission gear (12) meshing with it at its top, and the axis of the transmission gear (12) is connected to the motor output shaft on the connecting plate (3).
4. A purging device for the tube bank of a waste heat boiler heat exchanger according to claim 3, characterized in that, The adjustment mechanism also includes a connecting seat (13) located above the driven gear (8). One side of the connecting seat (13) is connected to the connecting plate (3). A vertically arranged shaft (14) is movably connected to the connecting seat (13), and a motor (15) is connected to the top of the shaft (14).
5. A purging device for the tube bank of a waste heat boiler heat exchanger according to claim 4, characterized in that, The bottom of the shaft 2 (14) is provided with four sets of evenly distributed drive shaft 1 (16), and the bottom end of each drive shaft 1 (16) is provided with a universal joint (17). The other end of the shaft 1 (10) is provided with four sets of drive shaft 2 (18) that are connected to the universal joint (17).
6. A purging device for the tube bank of a waste heat boiler heat exchanger according to claim 5, characterized in that, The connecting plate (3) is provided with symmetrically arranged limiting posts (19) on one side of the driven gear (8), and the side of the driven gear (8) is provided with a limiting rod (20) that cooperates with the limiting posts (19).
7. A purging device for the tube bank of a waste heat boiler heat exchanger according to claim 6, characterized in that, The diameter of the driven gear (8) is larger than the diameter of the transmission gear (12).