High-temperature-resistant and corrosion-resistant boiler

By introducing a purely mechanical spring preload adjustment system into the boiler, the problems of combustion efficiency and safety have been solved, and the precise control of the fuel-air ratio in the combustion chamber and automatic pressure relief have been achieved, thereby improving the boiler's operational stability and safety.

CN224094626UActive Publication Date: 2026-04-07HENAN JINDE BOILER CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-16
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing boilers struggle to achieve real-time matching of combustion efficiency under extreme conditions, posing safety hazards and wasting energy. Mechanical dampers and electric pressure relief valves are prone to malfunction, affecting operational stability and safety.

Method used

The spring preload adjustment system, which adopts a purely mechanical structure, dynamically adjusts the air intake and pressure relief through a rack, pinion, and lever mechanism to achieve precise control of the fuel-air ratio in the combustion chamber and automatically relieves pressure in case of overpressure, thus preventing equipment damage.

Benefits of technology

It improves combustion efficiency, reduces energy waste, enhances the equipment's anti-interference and safety, adapts to different operating conditions, and reduces maintenance frequency and safety hazards.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224094626U_ABST
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Abstract

The high-temperature-resistant and corrosion-resistant boiler comprises a combustion chamber, an air inlet is fixedly connected to one side of the combustion chamber, a movable rod is movably sleeved with the air inlet, a connecting rod is fixedly connected to the interior of the air inlet, a movable shaft is fixedly connected to one side of the movable rod, a transverse rod is movably sleeved with the outer surface of the movable shaft, and the transverse rod is fixedly connected to the outer surface of the transverse rod. The other side of the transverse rod is movably sleeved with a connecting rod, the other side of the moving rod is fixedly connected with a moving column, a rack is fixedly connected to the outer surface of the moving column, and a limiting column is movably sleeved with the rack. Through the structure, the heat efficiency is improved, the situation that the excessive air coefficient is too large or too small due to traditional fixed air inlet is avoided, and fuel consumption is reduced; compared with a traditional baffle or a traditional valve, the load requirement can be met more quickly and finely, temperature fluctuation is reduced, combustion is stable, hearth thermal stress impact caused by unstable flame can be reduced, the cracking risk of refractory materials is reduced, and the maintenance frequency is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of high-temperature resistant boiler technology, and in particular to a high-temperature resistant and corrosion-resistant boiler. Background Technology

[0002] A high-temperature and corrosion-resistant boiler is a boiler specifically designed for extreme working environments (such as high temperature, high pressure, and corrosive media). It typically employs special materials and protective technologies to extend its service life and improve operational safety.

[0003] The publication number CN207335157U discloses a low-NOx turbulent condensing boiler with a corrosion-resistant heat exchange chamber. A ceramic material layer is set on the inner wall of the heat exchange chamber, which can improve the heat exchange chamber's high temperature resistance, erosion resistance, and oxidation resistance, as well as improve heat exchange efficiency and facilitate operation and replacement.

[0004] Most boilers use fixed dampers or manually adjustable dampers, which makes it difficult to match combustion demand in real time, resulting in low combustion efficiency. Mechanical dampers rely on manual operation, and incomplete combustion produces CO and unburned particulate matter, while excessive air increases flue gas heat loss. Adjustment is lagging and cannot adapt to rapid load changes. Electric pressure relief valves rely on external power and control systems, posing safety hazards in the event of power failure or malfunction. Some pressure relief valves require regular calibration or replacement of vulnerable parts, increasing downtime. Utility Model Content

[0005] The purpose of this utility model is to provide a high-temperature resistant and corrosion-resistant boiler. By adjusting the spring preload, the pressure relief value can be flexibly set to adapt to different working conditions. The spring mechanism does not require external power, and the purely mechanical structure has strong anti-interference capabilities, making it suitable for harsh environments. Precise pressure relief reduces the ineffective discharge of the medium and avoids energy waste.

[0006] To achieve the above objectives, a high-temperature resistant and corrosion-resistant boiler is provided, comprising a combustion chamber. An air inlet is fixedly connected to one side of the combustion chamber. A movable rod is movably fitted inside the air inlet. A connecting rod is fixedly connected inside the air inlet. A movable shaft is fixedly connected to one side of the movable rod. A transverse rod is movably fitted to the outer surface of the movable shaft. A connecting rod is movably fitted to the other side of the transverse rod. A movable column is fixedly connected to the other side of the movable rod. A rack is fixedly connected to the outer surface of the movable column. A limit post is movably fitted inside the rack. A water tank is fixedly connected to the upper end of the combustion chamber. A fixing block is fixedly connected to the upper end of the water tank. A pressure port is connected through the fixing block. A pressure block is provided at the upper end of the pressure port. A support spring is movably fitted inside the pressure block. A threaded column is fixedly connected to the upper end of the support spring. A rotating wheel is fixedly connected to the upper end of the threaded column.

[0007] According to the aforementioned high-temperature resistant and corrosion-resistant boiler, a flue pipe is fixedly connected to the upper end of the water tank, a water inlet pipe is fixedly connected to the upper end of the water tank, a pressure gauge is fixedly connected to the upper end of the water tank, an air outlet is fixedly connected to the upper end of the water tank, and a water outlet is fixedly connected to one side of the water tank. Valves are provided for the water inlet pipe, the air outlet, and the water outlet.

[0008] According to the aforementioned high-temperature resistant and corrosion-resistant boiler, a louver is fixedly connected to the upper end of the horizontal rod.

[0009] According to the aforementioned high-temperature resistant and corrosion-resistant boiler, a feed inlet is fixedly connected to one side of the combustion chamber, and an ash removal inlet is fixedly connected to the other side of the combustion chamber.

[0010] According to the aforementioned high-temperature resistant and corrosion-resistant boiler, a combustion tube is fixedly connected inside the water tank, and a support rod is fixedly connected inside the combustion chamber.

[0011] According to the aforementioned high-temperature resistant and corrosion-resistant boiler, a gear is meshed with one side of the rack, and a motor is fixedly connected to one side of the gear.

[0012] According to the aforementioned high-temperature resistant and corrosion-resistant boiler, the fixing block has a groove inside, and a pressure relief port is provided on one side of the fixing block.

[0013] Beneficial effects:

[0014] 1. The air inlet is equipped with a movable rod, and a connecting rod is fixedly connected inside the air inlet. A movable shaft is fixedly connected to one side of the movable rod, and a transverse rod is movably fitted on the outer surface of the movable shaft. A connecting rod is movably fitted on the other side of the transverse rod, and a movable column is fixedly connected to the other side of the movable rod. A rack is fixedly connected to the outer surface of the movable column. The air intake is dynamically adjusted through louvers to make the fuel-air ratio closer to the ideal value, reducing energy loss caused by incomplete combustion, improving thermal efficiency, avoiding excessively large or small excess air coefficients caused by traditional fixed air intake, reducing fuel consumption, and matching load requirements more quickly and precisely than traditional baffles or valves. This reduces temperature fluctuations, stabilizes combustion, reduces furnace thermal stress impact caused by fluctuating flame size, reduces the risk of refractory material cracking, reduces carbon deposits and soot generation, and reduces maintenance frequency.

[0015] 2. A pressure port is internally connected to the fixed block, and a pressure block is installed at the upper end of the pressure port. A support spring is movably fitted inside the pressure block, and a threaded column is fixedly connected to the upper end of the support spring. A rotating wheel is fixedly connected to the upper end of the threaded column. When the pressure in the boiler or water tank exceeds the set threshold, the spring compression force is overcome, and the pressure relief valve automatically opens to release the pressure, preventing the container from rupturing or exploding due to overpressure, thus significantly improving equipment safety. By adjusting the spring preload, the pressure relief value can be flexibly set to adapt to different working conditions. The spring mechanism does not require external power, and the purely mechanical structure has strong anti-interference capabilities, making it suitable for harsh environments. Precise pressure relief reduces the ineffective discharge of media and avoids energy waste.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0018] Figure 1 This is a perspective view of a high-temperature resistant and corrosion-resistant boiler proposed in this utility model;

[0019] Figure 2 This is a cross-sectional view of a high-temperature resistant and corrosion-resistant boiler proposed in this utility model;

[0020] Figure 3 This is a cross-sectional view of a high-temperature resistant and corrosion-resistant boiler water tank proposed in this utility model;

[0021] Figure 4 A perspective view of a high-temperature resistant and corrosion-resistant boiler louver proposed in this utility model;

[0022] Figure 5 This is a cross-sectional view of a boiler pressure relief port that is resistant to high temperature and corrosion, as proposed in this utility model.

[0023] Legend:

[0024] 1. Smoke pipe; 2. Water inlet pipe; 3. Pressure gauge; 4. Water tank; 5. Combustion chamber; 6. Feed inlet; 7. Support spring; 8. Motor; 9. Louver; 10. Air inlet; 11. Water outlet; 12. Air outlet; 13. Rotary wheel; 14. Shelf rod; 15. Ash removal port; 16. Pressure relief port; 17. Combustion pipe; 18. Gear; 19. Rack; 20. Limiting post; 21. Moving post; 22. Horizontal rod; 23. Moving shaft; 24. Connecting rod; 25. Moving rod; 26. Threaded post; 27. Fixing block; 28. Pressure port; 29. ​​Pressure block. Detailed Implementation

[0025] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0026] Reference Figure 1-5 This utility model discloses a high-temperature and corrosion-resistant boiler, which includes a combustion chamber 5. An air inlet 10 is fixedly connected to one side of the combustion chamber 5. A moving rod 25 is movably fitted inside the air inlet 10. A connecting rod 24 is fixedly connected inside the air inlet 10. A moving shaft 23 is fixedly connected to one side of the moving rod 25. A transverse rod 22 is movably fitted to the outer surface of the moving shaft 23. A connecting rod 24 is movably fitted to the other side of the transverse rod 22. A moving column 21 is fixedly connected to the other side of the moving rod 25. A rack 19 is fixedly connected to the outer surface of the moving column 21. A limit post 20 is movably fitted inside the rack 19. A water tank 4 is fixedly connected to the upper end of the combustion chamber 5. A fixing block 27 is fixedly connected to the upper end of the water tank 4. A pressure port 28 is connected through the fixing block 27. A pressure block 29 is provided at the upper end of the pressure port 28. A support spring 7 is movably fitted inside the pressure block 29. A threaded column 26 is fixedly connected to the upper end of the support spring 7. A rotating wheel 13 is fixedly connected to the upper end of the threaded column 26.

[0027] Specifically: the air inlet 10 can increase the flame inside the combustion chamber 5; the moving rod 25 can move up and down; the moving shaft 23 moves with the moving rod 25 and pushes the transverse rod 22 to make lever motion; the other side of the transverse rod 22 is movably fitted onto one side of the connecting rod 24; the moving column 21 controls the movement of the moving rod 25; the rack 19 drives the moving column 21 to move; the limiting column 20 can restrict the movement of the rack 19; the pressure port 28 can discharge the high-pressure gas in the water tank 4; the pressure block 29 can restrict the pressure discharge; and the threaded column 26 can control the pressure of the support spring 7.

[0028] A flue pipe 1 is fixedly connected to the upper end of the water tank 4, an inlet pipe 2 is fixedly connected to the upper end of the water tank 4, a pressure gauge 3 is fixedly connected to the upper end of the water tank 4, an air outlet 12 is fixedly connected to the upper end of the water tank 4, and a water outlet 11 is fixedly connected to one side of the water tank 4. Valves are provided on the inlet pipe 2, the air outlet 12, and the water outlet 11.

[0029] Specifically: the flue pipe 1 can discharge the smoke and dust inside the combustion chamber 5, the water inlet pipe 2 can better allow water to enter the water tank 4, the pressure gauge 3 can observe the pressure inside the water tank 4, the air outlet 12 can discharge the gas inside the water tank 4, the water outlet 11 can discharge the wastewater inside the water tank 4, and the valve can control the water inlet, air outlet and drainage.

[0030] A louver 9 is fixedly connected to the upper end of the horizontal bar 22.

[0031] Specifically: the louvered window 9 allows for better control of the air intake.

[0032] A feed inlet 6 is fixedly connected to one side of the combustion chamber 5, and a ash removal inlet 15 is fixedly connected to the other side of the combustion chamber 5.

[0033] Specifically: feed port 6 can be used to add fuel, and ash removal port 15 can be used to clean up the ash after combustion.

[0034] A combustion pipe 17 is fixedly connected inside the water tank 4, and a support rod 14 is fixedly connected inside the combustion chamber 5.

[0035] Specifically: the increased flame contact area of ​​the combustion tube 17 better enhances the internal temperature of the water tank 4, the support rod 14 allows for better fuel combustion, and the burnt ash can fall through the gaps for easy cleaning.

[0036] A gear 18 is meshed on one side of the rack 19, and a motor 8 is fixedly connected to one side of the gear 18.

[0037] Specifically: The output end of the motor 8 is connected to a gear 18 to provide power. The gear 18 meshes with a rack 19 to control the rack 19 to move up and down.

[0038] A pressure relief port 16 is provided on one side of the fixing block 27.

[0039] Specifically: pressure relief port 16 is the internal air pressure discharge port.

[0040] Working principle: When steam is needed, the valve on the water inlet pipe 2 is controlled to fill the water tank 4 with water. When the water reaches a certain level, the valve is closed, and fuel is added into the combustion chamber 5 to heat the water tank 4. The feed inlet 6 is closed, and the internal combustion is observed through the window of the feed inlet 6, thereby controlling the size of the lower air inlet 10. The rotation of the motor 8 moves the rack 19 downward, driving the moving column 21 downward. The moving rod 25, which is fixedly connected to the moving column 21, moves downward, and one end of the horizontal rod 22 connected to it moves downward. Through the lever principle, the other end moves upward, and the louver 9, which is fixedly connected to it, also enters the tank. The boiler moves to the size of the air inlet 10. The pressure inside the water tank 4 is observed through the pressure gauge 3 at the top of the water tank 4. When the pressure inside the water tank 4 is too high, the pressure will be released from the pressure relief port 16 through the pressure port 28, which will push open the pressure block 29. The rotating wheel 13 lowers the threaded column 26 to increase the downward pressure of the support spring 7, thereby increasing the fit of the pressure block 29 to the pressure port 28 at the lower end. The valve of the air outlet 12 is opened, and steam is discharged from the air outlet 12. When the boiler is not in use, the valve of the water outlet 11 is opened to discharge the wastewater inside the water tank 4, thereby reducing the corrosion of the boiler interior by the wastewater.

[0041] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A high-temperature resistant and corrosion-resistant boiler, comprising a combustion chamber (5), characterized in that: An air inlet (10) is fixedly connected to one side of the combustion chamber (5). A moving rod (25) is movably fitted inside the air inlet (10). A connecting rod (24) is fixedly connected inside the air inlet (10). A moving shaft (23) is fixedly connected to one side of the moving rod (25). A transverse rod (22) is movably fitted to the outer surface of the moving shaft (23). A connecting rod (24) is movably fitted to the other side of the transverse rod (22). A moving column (21) is fixedly connected to the other side of the moving rod (25). A rack is fixedly connected to the outer surface of the moving column (21). (19) The rack (19) is fitted with a limit post (20) inside. The upper end of the combustion chamber (5) is fixedly connected to a water tank (4). The upper end of the water tank (4) is fixedly connected to a fixing block (27). The fixing block (27) is connected to a pressure port (28) inside. The upper end of the pressure port (28) is provided with a pressure block (29). The pressure block (29) is fitted with a support spring (7) inside. The upper end of the support spring (7) is fixedly connected to a threaded post (26). The upper end of the threaded post (26) is fixedly connected to a rotating wheel (13).

2. The high-temperature resistant and corrosion-resistant boiler according to claim 1, characterized in that, A flue pipe (1) is fixedly connected to the upper end of the water tank (4), an inlet pipe (2) is fixedly connected to the upper end of the water tank (4), a pressure gauge (3) is fixedly connected to the upper end of the water tank (4), an air outlet (12) is fixedly connected to the upper end of the water tank (4), and a water outlet (11) is fixedly connected to one side of the water tank (4). Valves are provided on the inlet pipe (2), the air outlet (12), and the water outlet (11).

3. The high-temperature resistant and corrosion-resistant boiler according to claim 1, characterized in that, A louver (9) is fixedly connected to the upper end of the horizontal bar (22).

4. A high-temperature resistant and corrosion-resistant boiler according to claim 1, characterized in that, A feed inlet (6) is fixedly connected to one side of the combustion chamber (5), and a ash removal inlet (15) is fixedly connected to the other side of the combustion chamber (5).

5. A high-temperature resistant and corrosion-resistant boiler according to claim 1, characterized in that, The water tank (4) is fixedly connected to a combustion pipe (17), and the combustion chamber (5) is fixedly connected to a support rod (14).

6. A high-temperature resistant and corrosion-resistant boiler according to claim 1, characterized in that, A gear (18) is meshed on one side of the rack (19), and a motor (8) is fixedly connected to one side of the gear (18).

7. A high-temperature resistant and corrosion-resistant boiler according to claim 1, characterized in that, A pressure relief port (16) is provided on one side of the fixing block (27).

Citation Information

Patent Citations

  • Heat transfer room corrosion resistant low nitrogen turbulent flow condensing boiler

    CN207335157U