Boiler condenser
By designing a rotating end plate and a pulse valve system, the problem of difficult-to-clean dust on the surface of the condenser tubes was solved, achieving comprehensive dust cleaning and improved heat exchange capacity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-03-13
AI Technical Summary
Dust deposited on the surface of existing condenser tubes is difficult to clean, resulting in a decrease in heat exchange capacity, especially since condenser tubes far from the dust outlet cannot be effectively cleaned.
A boiler condenser was designed, which uses a rotating end plate and pulse valve system to clean the dust on the surface of the heat exchange tubes with high-pressure gas. The rotating end plate drives the heat exchange tubes to change position, ensuring that all parts can be effectively purged.
It achieves comprehensive cleaning of the condenser tubes, improves the cleaning effect of the heat exchange tubes, and enhances the heat exchange capacity.
Smart Images
Figure CN223992539U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of condenser technology, and in particular to a boiler condenser. Background Technology
[0002] Boiler flue gas needs to be heat-exchanged in a condenser before it can be discharged. The flue gas contains a large amount of dust, some of which will adhere to the surface of the condenser tubes. Moreover, most existing condenser tubes have spiral heat dissipation fins on their surface. Over time, the dust deposited on the surface of the condenser tubes becomes difficult to clean, which greatly reduces the heat exchange capacity of the condenser tubes. The current solution is to stop the machine periodically and use airflow to purge the condenser tubes. However, the condenser tubes are arranged relatively densely inside the condenser shell, which cannot effectively clean the condenser tubes far from the dust blowout. Improvement is needed. Utility Model Content
[0003] To address the problems mentioned in the background art, the purpose of this utility model is to provide a boiler condenser.
[0004] To achieve the above objectives, the technical solution of this utility model is as follows:
[0005] A boiler condenser includes a cylindrical shell. Circular end plates are rotatably mounted at both ends of the shell via mechanical seals. A plurality of heat exchange tubes pass through the two end plates. Sealing covers are fixedly connected to opposite sides of the two end plates, covering the openings of the heat exchange tubes. Connecting pipes are fixedly connected to opposite sides of the two sealing covers, and the connecting pipes are coaxially arranged with the end plates. A flue gas inlet and outlet are symmetrically arranged at the center of the circumferential surface of the shell. A plurality of dust blowing ports are spaced along the axial direction on the circumferential surface of the shell, and pulse valves are installed on the dust blowing ports. A discharge port with a discharge valve is located at the center of the circumferential surface of the shell.
[0006] Furthermore, the sealing cover is cylindrical in shape, and one of the sealing covers has a toothed ring fitted onto its exterior.
[0007] The beneficial effects of this utility model are as follows: When installing the condenser, it is necessary to use a rotary joint to connect the connecting pipe to the heat exchange liquid delivery pipe and connect the pulse valve to the high-pressure gas source. When cleaning the dust on the surface of the heat exchange tube, the end plate can be rotated to move several heat exchange tubes inside the shell, so that the heat exchange tubes in each part can be effectively blown out. Attached Figure Description
[0008] Figure 1 This is a perspective view of an embodiment of the present utility model;
[0009] Figure 2 This is a cross-sectional view of an embodiment of the present utility model;
[0010] Figure 3 This is a schematic diagram showing the connection between the heat exchange tube and the end plate.
[0011] Explanation of the attached drawing numbers: 1. Outer shell, 11. Flue gas inlet, 12. Flue gas outlet, 13. Dust blowing port, 14. Pulse valve, 15. Discharge port, 16. Discharge valve, 2. End plate, 21. Sealing cover, 22. Connecting pipe, 3. Heat exchange tube, 4. Gear ring. Detailed Implementation
[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.
[0013] like Figures 1-3 As shown, a boiler condenser includes a cylindrical outer shell 1. Circular end plates 2 are rotatably mounted at both ends of the outer shell 1 via mechanical seals. Several heat exchange tubes 3 are inserted through the two end plates 2. Sealing covers 21 are fixedly connected to the opposite sides of the two end plates 2. The sealing covers 21 are cylindrical and cover the openings of the heat exchange tubes 3. A toothed ring 4 is fixedly fitted to the outside of one of the sealing covers 21. Connecting pipes 22 are fixedly connected to the opposite sides of the two sealing covers 21. The connecting pipes 22 are coaxially arranged with the end plates 2. A flue gas inlet 11 and a flue gas outlet 12 are symmetrically arranged at the center of the circumference of the outer shell 1. Several dust blowing ports 13 are spaced apart along the axial direction on the circumference of the outer shell 1. Pulse valves 14 are installed on the dust blowing ports 13. A discharge port 15 is arranged at the center of the circumference of the outer shell 1, and a discharge valve 16 is installed on the discharge port 15.
[0014] In actual use, the outer casing 1 needs to be installed horizontally with the discharge port 15 facing the ground. A rotary joint connects the connecting pipe 22 to the heat exchange medium conveying pipe. The flue gas inlet 11 is connected to the boiler's exhaust port, and the flue gas outlet 12 is connected to the flue gas post-treatment equipment via a pipe. The pulse valve 14 is connected to the high-pressure gas source. A motor is then installed below the gear ring, and a gear is installed on the motor's main shaft, meshing with the gear ring. When the condenser is working, the heat exchange medium passes through the heat exchange tubes 3, and the flue gas is discharged from the flue gas inlet 11 to the flue gas outlet 12. The heat exchange medium absorbs the heat from the flue gas. When cleaning the heat exchange tubes 3, the flue gas inlet 11 is first blocked, the motor is turned on to drive the end plate 2 to rotate, and the pulse valve 14 is opened, allowing high-pressure gas to be blown into the outer casing 1 through the dust blowing port 13. Since all the heat exchange tubes 3 are moving and exchanging positions, the heat exchange tubes 3 at various positions along the edge of the end plate 2 can be effectively cleaned, significantly improving the cleaning effect of the heat exchange tubes 3.
[0015] 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., 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 boiler condenser comprising a casing (1), characterised in that, The shell (1) is in cylindrical shape, two ends of the shell (1) are respectively provided with circular end plates (2) through mechanical seal rotation installation, a plurality of heat exchange pipes (3) are arranged in the two end plates (2), the opposite sides of the two end plates (2) are fixedly connected with sealing covers (21), the sealing covers (21) cover the pipe openings of the plurality of heat exchange pipes (3), the opposite sides of the two sealing covers (21) are fixedly connected with connecting pipes (22), the connecting pipes (22) are coaxially arranged with the end plates (2), the middle part of the circumferential surface of the shell (1) is provided with a flue gas inlet (11) and a flue gas outlet (12), a plurality of dust blowing ports (13) are arranged on the circumferential surface of the shell (1) along the axial direction of the shell (1), pulse valves (14) are arranged on the dust blowing ports (13), a discharge port (15) is arranged on the middle part of the circumferential surface of the shell (1), and a discharge valve (16) is arranged on the discharge port (15).
2. A boiler condenser according to claim 1, characterised in that The sealing cover (21) is in cylindrical shape, and a tooth ring (4) is sleeved on the outside of one of the sealing covers (21).