Multi-pipe type gas steam generating device
By designing a multi-tube structure and regulating mechanism, the problems of low heat exchange efficiency and inconvenient gas input regulation in traditional single-tube steam generators have been solved, achieving efficient and stable steam supply and equipment reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN FANGYUAN NEW ENERGY CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-19
AI Technical Summary
Traditional single-tube steam generators have low heat exchange efficiency and inconvenient gas input regulation, making it difficult to meet the demand for efficient and stable steam supply.
It adopts a multi-tube structure, combined with the design of the regulating mechanism and heat exchange tubes. The gas input is precisely controlled by the threaded engagement of the regulating sleeve and the connecting sleeve, and the exhaust gas is discharged through the exhaust pipe to ensure the efficient operation of the system.
It improves heat transfer efficiency, enables precise regulation of gas input, ensures high efficiency and stability of steam production, and extends the service life of the equipment.
Smart Images

Figure CN224261687U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of industrial production technology, and more specifically, to a multi-tube gas-fired steam generator. Background Technology
[0002] In industrial production, steam is a key power source for many processes and is widely used in chemical, food processing, and energy production. In order to improve steam production efficiency and energy utilization, traditional steam generators mostly adopt a single-tube structure. Although this structure is relatively simple in initial use, it has the problem of low efficiency in practical applications. The heat exchange efficiency of the single-tube device is not high, and it cannot make full use of the heat source, resulting in energy waste. Especially in situations where a large amount of steam supply is required, this structure is difficult to meet the working conditions of high efficiency and high demand.
[0003] In addition, single-tube steam generators have inconveniences in adjusting the gas input. Due to structural limitations, the gas input usually needs to be manually adjusted or controlled by a simple regulating valve. This method is not only inaccurate, but also difficult to reflect changes in equipment load in real time. In actual production, demand may fluctuate, especially when the load is large or changes rapidly. Single-tube generators cannot accurately adjust the gas input, thus affecting the stability and supply capacity of steam. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] In view of the problems existing in the prior art, this utility model provides a multi-tube gas-fired steam generator to solve the technical problems mentioned in the background art.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a multi-tube gas-steam generator, comprising a housing, wherein a steam generating mechanism is disposed within the housing, the steam generating mechanism comprising a generating chamber, a combustion chamber, an inlet pipe, a heat exchange pipe, and an adjusting mechanism, the generating chamber being disposed within the housing, the combustion chamber being installed within the generating chamber, the inlet pipe being connected to one end of the combustion chamber, and multiple sets of heat exchange pipes being disposed within the combustion chamber and connected at both ends to the generating chamber, the adjusting mechanism comprising a connecting sleeve, a sliding groove, a slider, a baffle, a connecting plate, a rotating plate, and an adjusting sleeve, the connecting sleeve being connected to one end of the inlet pipe, multiple sets of sliding grooves being distributed on the inner wall of the connecting sleeve, the slider sliding within the multiple sets of sliding grooves, the baffle being installed on the inner side of the multiple sets of sliders, the connecting plate being installed on the outer wall of the multiple sets of baffles, the rotating plate being fixed to the top of the multiple sets of connecting plates, and the adjusting sleeve being threadedly connected to the inner side of the connecting sleeve and rotatably connected to the rotating plate.
[0008] The present invention is further configured such that an exhaust pipe is provided at the top of the combustion chamber, which can effectively discharge the exhaust gas generated during the combustion process, ensure smooth airflow in the combustion chamber, avoid the impact of exhaust gas on the system, and ensure the efficient operation of the equipment.
[0009] The present invention is further configured such that a steam outlet pipe is connected to the top surface of the outer shell, and a water inlet pipe is provided on the outer wall of the outer shell, so as to ensure that pure water and steam can smoothly enter and exit the device, maintain a stable supply of water and steam, and improve the working efficiency and stability of the equipment.
[0010] The present invention is further configured such that the outer walls of the multiple sets of sliders are provided with guide plates, the outer sides of the multiple sets of slide grooves are provided with guide grooves, and the multiple sets of guide plates are slidably connected to the guide grooves, which can make the sliders in the adjustment mechanism more stable during sliding, reduce friction, extend the service life of the components, and improve the accuracy of adjustment.
[0011] The present invention is further configured such that all of the connecting plates are flexible plates, which can provide a certain degree of elasticity and flexibility during operation, avoid damage to components caused by excessive external force, and enhance the reliability and durability of the system.
[0012] The present invention is further configured such that a limiting rod is fixedly provided inside the connecting sleeve, and multiple sets of the limiting rod are provided. A limiting hole is provided on the rotating plate, and multiple sets of the limiting hole are provided and slidably connected to multiple sets of limiting rods respectively. This can accurately limit the movement range of the rotating plate, improve the stability during the adjustment process, and prevent the adjustment device from over-adjusting or failing.
[0013] The present invention is further provided that the outer wall of the adjusting sleeve is provided with anti-slip strips, and the anti-slip strips are provided in multiple sets evenly distributed on the outer wall of the adjusting sleeve, which can effectively increase the friction of the adjusting sleeve, prevent uneven sliding during the adjustment process, and ensure the accuracy and safety of operation.
[0014] The present invention is further configured such that the top end of the adjusting sleeve is provided with a connecting shaft, which can be easily connected to an external gas input pipe to realize precise adjustment of the gas input, improve the system's control accuracy of gas flow, and ensure the high efficiency and stability of the combustion process.
[0015] (III) Beneficial Effects
[0016] Compared with the prior art, this utility model provides a multi-tube gas-fired steam generator, which has the following advantages:
[0017] 1. The steam generating mechanism effectively transfers the high-temperature heat generated by the combustion of fuel gas to water, using heat exchange tubes to heat the water and convert it into steam. Water in the generating chamber is heated to boiling through the heat exchange tubes, and the generated steam can be transported to where it is needed through the steam outlet pipe, providing a continuous supply of heat energy. Compared to traditional single-tube devices, this multi-tube heat exchange system significantly improves heat transfer efficiency, reduces energy waste, and ensures high efficiency and stability in steam production.
[0018] 2. The regulating mechanism, through the threaded engagement of the regulating sleeve and the connecting sleeve, can precisely control the gas input. Rotating the regulating sleeve causes the rotating plate to slide, and the connecting plate pulls the baffle, changing the gap between the baffles, thereby regulating the gas flow space and ensuring that the gas volume can be finely adjusted according to demand. This regulation method improves the accuracy of gas control, better adapts to the working requirements under different load conditions, and avoids energy efficiency losses or unstable steam production caused by improper gas input.
[0019] 3. The exhaust pipe effectively discharges combustion waste gas, ensuring that the gases generated during combustion do not have a reverse impact on the system. The water inlet pipe ensures that pure water can efficiently enter the steam generator, maintaining a stable water supply. The use of flexible connecting plates ensures coordination and safe connection between components, improving the overall reliability and service life of the system. The design of the guide plate and guide groove makes the sliding of components inside the adjusting mechanism smoother, reducing wear and improving the long-term stability of the equipment. The anti-slip strip makes the adjusting sleeve more stable during rotation, preventing slippage failure and helping to extend the service life of the adjusting device. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of a multi-tube gas-fired steam generator according to the present invention;
[0021] Figure 2 This is a cross-sectional view of the outer shell of this utility model;
[0022] Figure 3 This is a cross-sectional view of the connecting sleeve in this utility model;
[0023] Figure 4 This is a cross-sectional view of the adjusting sleeve in this utility model;
[0024] Figure 5 This is a schematic diagram of the transfer plate of this utility model.
[0025] In the diagram: 1. Outer shell; 2. Generator compartment; 3. Combustion chamber; 4. Intake pipe; 5. Heat exchange pipe; 6. Connecting sleeve; 7. Slide groove; 8. Slider; 9. Baffle; 10. Connecting plate; 11. Rotating plate; 12. Adjusting sleeve; 13. Exhaust pipe; 14. Steam outlet pipe; 15. Water inlet pipe; 16. Guide plate; 17. Guide groove; 18. Limiting rod; 19. Limiting hole; 20. Anti-slip strip; 21. Connecting shaft. Detailed Implementation
[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.
[0028] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.
[0029] Please see Figures 1-5 A multi-tube gas-fired steam generator includes a housing 1, within which a steam generating mechanism is installed. The steam generating mechanism includes a generating chamber 2, a combustion chamber 3, an air inlet pipe 4, a heat exchange pipe 5, and an adjusting mechanism. The generating chamber 2 is located inside the housing 1, the combustion chamber 3 is installed inside the generating chamber 2, the air inlet pipe 4 is connected to one end of the combustion chamber 3, and multiple sets of heat exchange pipes 5 are installed inside the combustion chamber 3 and connected to the generating chamber 2 at both ends. The adjusting mechanism includes a connecting sleeve 6, a sliding groove 7, a slider 8, a baffle 9, a connecting plate 10, a rotating plate 11, and an adjusting sleeve 12. The connecting sleeve 6 is connected to one end of the air inlet pipe 4, multiple sets of sliding grooves 7 are distributed on the inner wall of the connecting sleeve 6, the slider 8 slides within the multiple sets of sliding grooves 7, the baffle 9 is installed inside the multiple sets of sliders 8, the connecting plate 10 is installed on the outer wall of the multiple sets of baffles 9, the rotating plate 11 is fixed to the top of the multiple sets of connecting plates 10, and the adjusting sleeve 12 is threadedly connected to the inner side of the connecting sleeve 6 and rotatably connected to the rotating plate 11.
[0030] The combustion chamber 3 is equipped with an exhaust pipe 13 at the top. The exhaust pipe 13 is used to discharge the exhaust gas generated by combustion in a timely manner, which helps to maintain the air pressure balance and smooth airflow in the combustion chamber 3 and prevent the accumulation of exhaust gas from affecting the combustion efficiency.
[0031] The top surface of the outer shell 1 is connected to a steam outlet pipe 14, and the outer wall of the outer shell 1 is provided with a water inlet pipe 15. The water inlet pipe 15 ensures a continuous supply of water, and the generated steam is output in a timely manner through the steam outlet pipe 14, so as to realize the efficient circulation and output of water and steam.
[0032] Multiple sets of sliders 8 are provided with guide plates 16 on their outer walls, and multiple sets of slide grooves 7 are provided with guide grooves 17 on their outer sides. Multiple sets of guide plates 16 and guide grooves 17 are slidably connected. The cooperation between guide plates 16 and guide grooves 17 ensures that sliders 8 slide stably and smoothly in slide grooves 7, improving the accuracy and durability of component movement.
[0033] All sets of connecting plates 10 are set as flexible plates. The flexible connecting plates 10 can effectively buffer the force transmission during the transmission process, enhance the flexibility of the adjustment mechanism during operation, and reduce the risk of damage.
[0034] A limiting rod 18 is fixedly provided inside the connecting sleeve 6. Multiple sets of limiting rods 18 are provided. A limiting hole 19 is provided on the rotating plate 11. Multiple sets of limiting holes 19 are provided and are slidably connected to multiple sets of limiting rods 18 respectively. The structural combination of the limiting rods 18 and the limiting holes 19 effectively controls the sliding range of the rotating plate 11, avoids excessive movement, and ensures the safety and accuracy of adjustment.
[0035] The outer wall of the adjusting sleeve 12 is provided with anti-slip strips 20. Multiple sets of anti-slip strips 20 are evenly distributed on the outer wall of the adjusting sleeve 12. The anti-slip strips 20 increase the grip friction of the operator on the adjusting sleeve 12, making the rotation operation more stable and reliable.
[0036] The top of the adjusting sleeve 12 is provided with a connecting shaft 21, which is used to connect with an external gas pipeline to facilitate the control and adjustment of gas input, thereby improving the overall combustion efficiency and gas adjustment accuracy of the system.
[0037] In this embodiment, pure water is injected into the generator chamber 2 through the main water pipe, and the connecting shaft 21 is connected to the external gas input pipe. The gas enters the combustion chamber 3 through the air inlet pipe 4 and is ignited to produce high-temperature gas. The high-temperature gas transfers heat to the water in the generator chamber 2 through the multi-pipe heat exchange system. The water is heated when it flows through the heat exchange pipe 5 and begins to be converted into steam. The steam outlet pipe 14 is connected to the external steam recovery device for collection. The water is heated to boiling in the pipeline to generate steam, which is then transported to the required location through the pipeline. The exhaust gas after combustion is discharged from the combustion chamber 3 through the exhaust pipe 13.
[0038] More specifically, when it is necessary to adjust the gas input, the rotating adjusting sleeve 12 is threadedly engaged with the inner wall of the connecting sleeve 6, thereby driving the rotating plate 11 to slide along multiple sets of limiting rods 18 and pull the baffle 9 through the connecting plate 10, so that the multiple sets of baffles 9 slide along the slide groove 7 through the slider 8 to change the gap between the multiple sets of baffles 9, thereby adjusting the gas flow space and adjusting the gas input.
[0039] In summary, during the use or operation of the entire equipment: pure water is injected into the generating chamber 2 through the main water pipe, the connecting shaft 21 is connected to the external gas input pipe, the gas enters the combustion chamber 3 through the air inlet pipe 4, and after ignition, high-temperature gas is generated. The high-temperature gas transfers heat to the water in the generating chamber 2 through the multi-tube heat exchange system. The water is heated when it flows through the heat exchange tube 5 and begins to be converted into steam. The steam outlet pipe 14 is connected to the external steam recovery device for collection. The water is heated to boiling in the pipeline, generating steam, which is then transported to the required location through the pipeline. The exhaust gas after combustion is discharged from the combustion chamber 3 through the exhaust pipe 13.
[0040] When it is necessary to adjust the gas input, the rotating adjusting sleeve 12 is threaded into the inner wall of the connecting sleeve 6, thereby driving the rotating plate 11 to slide along multiple sets of limiting rods 18 and pull the baffle 9 through the connecting plate 10. This causes the multiple sets of baffles 9 to slide along the slide groove 7 through the slider 8, changing the gap between the multiple sets of baffles 9, thereby adjusting the gas flow space and regulating the gas input.
[0041] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.
Claims
1. A multi-tube gas-fired steam generator, comprising a casing (1), characterized in that: A steam generating mechanism is provided inside the outer shell (1). The steam generating mechanism includes a generating chamber (2), a combustion chamber (3), an air inlet pipe (4), a heat exchange pipe (5), and an adjusting mechanism. The generating chamber (2) is located inside the outer shell (1), and the combustion chamber (3) is installed inside the generating chamber (2). The air inlet pipe (4) is connected to one end of the combustion chamber (3). Multiple sets of heat exchange pipes (5) are provided inside the combustion chamber (3) and connected to the generating chamber (2) at both ends. The adjusting mechanism includes a connecting sleeve (6), a sliding groove (7), a sliding block (8), and a baffle. (9) Connecting plate (10), rotating plate (11) and adjusting sleeve (12), connecting sleeve (6) is connected to one end of air inlet pipe (4), multiple sets of sliding grooves (7) are provided on the inner wall of connecting sleeve (6), sliding block (8) slides in multiple sets of sliding grooves (7), baffle (9) is installed on the inner side of multiple sets of sliding block (8), connecting plate (10) is installed on the outer wall of multiple sets of baffles (9), rotating plate (11) is fixed on the top of multiple sets of connecting plates (10), adjusting sleeve (12) is threaded to the inner side of connecting sleeve (6) and rotates with rotating plate (11).
2. The multi-tube gas-fired steam generator according to claim 1, characterized in that: The combustion chamber (3) is provided with an exhaust pipe (13) at the top.
3. A multi-tube gas-fired steam generator according to claim 2, characterized in that: The top surface of the outer shell (1) is connected to a steam outlet pipe (14), and the outer wall of the outer shell (1) is provided with a water inlet pipe (15).
4. A multi-tube gas-fired steam generator according to claim 3, characterized in that: multiple sets The outer wall of each slider (8) is provided with a guide plate (16), and the outer side of each of the multiple sets of sliding grooves (7) is provided with a guide groove (17). The multiple sets of guide plates (16) are slidably connected to the guide grooves (17).
5. A multi-tube gas-fired steam generator according to claim 4, characterized in that: All of the connecting plates (10) are configured as flexible plates.
6. A multi-tube gas-fired steam generator according to claim 5, characterized in that: The connecting sleeve (6) is fixedly provided with a limiting rod (18), and there are multiple sets of the limiting rod (18). The rotating plate (11) is provided with a limiting hole (19), and there are multiple sets of the limiting hole (19) which are slidably connected to multiple sets of limiting rods (18).
7. A multi-tube gas-fired steam generator according to claim 6, characterized in that: The outer wall of the adjusting sleeve (12) is provided with anti-slip strips (20), and the anti-slip strips (20) are provided in multiple sets evenly distributed on the outer wall of the adjusting sleeve (12).
8. A multi-tube gas-fired steam generator according to claim 7, characterized in that: The top of the adjusting sleeve (12) is provided with a connecting shaft (21).