Energy-saving steam generator

By employing S-type heat exchange pipe assemblies, flame baffles, and water flow control assemblies in the steam generator, the problem of low thermal energy utilization in existing steam generators has been solved, achieving more efficient heat transfer and water flow management, and thus achieving energy-saving and environmentally friendly results.

CN115111571BActive Publication Date: 2026-07-10YUFUBAO KITCHENWARE EQUIP SHENZHEN CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
YUFUBAO KITCHENWARE EQUIP SHENZHEN CO LTD
Filing Date
2022-06-24
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

The heat conversion method of existing steam generators is unreasonable, resulting in low thermal energy utilization and incomplete combustion, which fails to meet the requirements of energy conservation and environmental protection.

Method used

The system employs multiple heat exchange pipe components designed in an S-shape, combined with flame baffles and water flow control components. Through intelligent water flow control and the addition of insulation components, the system improves thermal energy utilization.

Benefits of technology

It improves heat transfer efficiency, reduces flue gas temperature, achieves faster heating speed and higher thermal efficiency, and enables automatic water replenishment and effective utilization of heat.

✦ Generated by Eureka AI based on patent content.

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    Figure CN115111571B_ABST
Patent Text Reader

Abstract

The application relates to the technical field of steam generators, in particular to an energy-saving steam generator, which comprises a water storage type water bladder outer box body, a plurality of heat exchange pipeline assemblies are arranged in the water storage type water bladder outer box body, a steam outlet is fixedly arranged at the top end of the water storage type water bladder outer box body, a water storage type water bladder drain valve is fixedly arranged at the bottom end of the water storage type water bladder outer box body, and a water inlet pipe in communication with the water storage type water bladder outer box body is arranged at the side of the water storage type water bladder outer box body close to the top. The S-shaped heat exchange pipeline assembly is arranged, the pipeline design is faster than that of a general straight-through type, the exhaust flue gas temperature is low, the design is more environmentally-friendly, the heat efficiency is higher, and a plurality of flame baffles are arranged in the heat exchange pipeline assembly, the contact area of the flame and water can be effectively increased, better heat energy transmission effect can be realized, and higher heat efficiency can be realized.
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Description

Technical Field

[0001] This invention relates to the field of steam generator technology, specifically to an energy-saving steam generator. Background Technology

[0002] Currently used steam generators for steaming appliances generally employ inefficient heat conversion methods. They typically involve direct external heating of the water tank or a single, straight-through stainless steel water tank serving as the fire tube heating structure. Furthermore, the poorly designed fire tubes in this heating structure lead to excessively rapid flue gas flow, incomplete combustion, and low thermal energy utilization, failing to meet energy-saving and environmental protection requirements. Therefore, we propose an energy-saving steam generator. Summary of the Invention

[0003] To overcome the above shortcomings, the present invention provides an energy-saving steam generator.

[0004] The technical solution of this invention is:

[0005] An energy-saving steam generator includes a water-storage tank outer casing. Multiple heat exchange pipe assemblies are installed inside the water-storage tank outer casing. A steam outlet is fixedly installed at the top of the water-storage tank outer casing, and a water-storage tank drain valve is fixedly installed at the bottom. A water inlet pipe communicating with the interior of the water-storage tank outer casing is installed on the side of the outer casing near the top. A flue gas exhaust pipe is fixedly installed at the end of each heat exchange pipe assembly. A water volume control component capable of intelligently controlling the internal water volume is installed inside the water-storage tank outer casing, and a heat insulation component is provided around the outer casing.

[0006] As a preferred embodiment of the present invention, the heat exchange pipe assembly is provided in at least three parts, arranged in a side-by-side manner with equal spacing.

[0007] As a preferred embodiment of the present invention, each heat exchange pipe assembly is composed of a bottom fire pipe channel, a middle fire pipe channel and a top fire pipe channel, and a second connecting fire pipe channel and a first connecting fire pipe channel are fixedly connected at the junctions of the bottom fire pipe channel and the middle fire pipe channel and the middle fire pipe channel and the top fire pipe channel, respectively.

[0008] As a preferred embodiment of the present invention, the bottom fire tube channel, the middle fire tube channel, the top fire tube channel, the first connecting fire tube channel, and the second connecting fire tube channel are connected at the end to form an S-shaped channel.

[0009] As a preferred embodiment of the present invention, a flame inlet is provided at the end of the bottom fire tube channel, and multiple flame baffles are fixedly installed inside the middle fire tube channel and the top fire tube channel. Each flame baffle is provided with a flame channel inside, and the flame channel is in a multi-segment bend shape, and the inlet and outlet of the flame channel are consistent with the flow direction of the flame.

[0010] As a preferred embodiment of the present invention, the flame baffles are arranged in an alternating manner, with two adjacent flame baffles fixed on different fire tube channel sidewalls respectively, and the inclination directions of the two adjacent flame baffles are opposite. A flame channel is formed between two adjacent flame baffles, and a heat-conducting steel pipe is provided inside each flame channel. The heat-conducting steel pipe is fixed between the two sidewalls of the fire tube channel.

[0011] As a preferred embodiment of the present invention, the water volume control component includes two floating component protective covers disposed inside the outer casing of the water storage tank. Each floating component protective cover has a floating component installed inside. A first flow-blocking net is fixedly installed between the two floating component protective covers. A second flow-blocking net communicating with the interior is installed on the side of each floating component protective cover. Each floating component protective cover has a stagnant flow space inside. The floating component is disposed inside the stagnant flow space. The first flow-blocking net is located above the top of the heat exchange pipe assembly, and the height of the floating component is higher than the top height of the heat exchange pipe assembly.

[0012] As a preferred embodiment of the present invention, the water volume control component further includes a solenoid valve disposed on an external water pump pipeline, and the solenoid valve and the two floating components are connected to each other by a connecting wire.

[0013] As a preferred embodiment of the present invention, the floating assembly includes a lower fixed plate and an upper fixed plate fixedly installed inside the static flow space. Two parallel guide steel pipes are fixedly installed between the lower fixed plate and the upper fixed plate. Each guide steel pipe is surrounded by a return spring, and a movable float plate is movably inserted through the two guide steel pipes.

[0014] As a preferred embodiment of the present invention, both ends of the movable float are fixedly installed with upwardly inclined side baffles, a lower conductive metal block is fixedly connected above the lower fixed plate by a connecting rod, a metal block fixing rod is fixedly installed on the upper fixed plate, and an upper conductive metal block is fixedly installed at the bottom end of the metal block fixing rod, which is directly opposite the lower conductive metal block. The top and bottom ends of the reset spring are respectively fixedly installed on the upper fixed plate and the movable float.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. By setting up a heat exchange pipe assembly, the flame can effectively reduce the flue gas speed when entering the heat exchange pipe assembly due to the S-shape of the heat exchange pipe assembly. This results in a large amount of heat energy being transferred to the water stored in the outer casing of the water tank, heating the water inside and generating steam. The heating speed of this process is faster than that of a general straight-through pipe design, while the exhaust flue gas temperature is lower, making it more environmentally friendly and with higher thermal efficiency.

[0017] 2. This invention, by setting up a water volume control component, when water has entered the still flow space, the water contacts the movable float and pushes the movable float to move upward, thereby pushing the lower conductive metal block to move upward until the lower conductive metal block and the upper conductive metal block separate. At this time, the solenoid valve is closed, and the water flow from the external water pump pipe no longer enters the outer casing of the water storage tank, stopping water addition. When the water level inside the outer casing of the water storage tank drops due to evaporation, the water no longer contacts the movable float. Under the elastic force of the return spring, the movable float moves downward, thereby pushing the lower conductive metal block downward. At this time, the solenoid valve is opened, and the water flow from the external water pump pipe enters the outer casing of the water storage tank again, realizing automatic replenishment of the internal water.

[0018] 3. By setting up a heat insulation component, the present invention can effectively prevent heat loss inside the outer casing of the water tank, thereby further improving the efficiency of heat energy utilization. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is an overall cross-sectional view of the present invention (with the heat exchange pipe assembly installed);

[0021] Figure 3 This is a schematic diagram of the overall structure of the heat exchange pipeline assembly in this invention;

[0022] Figure 4 This is a partial structural diagram of the heat exchange pipeline assembly in this invention;

[0023] Figure 5 This is an overall cross-sectional view of the present invention (without the heat exchange pipe assembly installed);

[0024] Figure 6 This is a schematic diagram of the water volume control component in this invention;

[0025] Figure 7 For the present invention Figure 5 Schematic diagram of the structure at point A in the middle.

[0026] In the picture:

[0027] Steam outlet 1;

[0028] Heat exchange piping assembly 2, bottom fire tube channel 21, middle fire tube channel 22, top fire tube channel 23, first connecting fire tube channel 24, second connecting fire tube channel 25, flame inlet 26, flame baffle 27, flame channel 28, heat-conducting steel pipe 29;

[0029] 3. Water tank outer casing;

[0030] 4. Water tank drain valve; 5. Water inlet pipe; 6. Exhaust gas pipe;

[0031] Water volume control component 7, floating component protective cover 71, floating component 72, static flow space 73, solenoid valve 74, connecting wire 75, first flow barrier 76, second flow barrier 77;

[0032] Lower fixed plate 721, upper fixed plate 722, guide steel pipe 723, return spring 724, movable float 725, side baffle 726, lower conductive metal block 727, metal block fixing rod 728, upper conductive metal block 729;

[0033] 8. Fixed heat-conducting plate, 9. Connecting heat-conducting plate, 10. Insulation plate, 11. Heat overflow space. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0036] Please see Figure 1-7 The present invention will describe the above technical solution in detail through the following embodiments:

[0037] An energy-saving steam generator includes a water-storage tank outer casing 3. Multiple heat exchange pipe assemblies 2 are installed inside the water-storage tank outer casing 3. A steam outlet 1 is fixedly installed at the top of the water-storage tank outer casing 3, allowing generated steam to escape. A water-storage tank drain valve 4 is fixedly installed at the bottom of the water-storage tank outer casing 3. A water inlet pipe 5, communicating with the interior of the water-storage tank outer casing 3, is installed on the side of the water-storage tank outer casing 3 near the top. Water can be injected into the water storage chamber inside the water-storage tank outer casing 3 through the water inlet pipe 5, and drained through the water-storage tank drain valve 4. A flue gas exhaust pipe 6 is fixedly installed at the end of each heat exchange pipe assembly 2, effectively discharging flue gas. A water volume control component 7, capable of intelligently controlling the internal water volume, is installed inside the water-storage tank outer casing 3. A heat insulation component is provided around the perimeter of the water-storage tank outer casing 3.

[0038] As a preferred embodiment of the present invention, at least three heat exchange pipe assemblies 2 are provided, arranged in a parallel manner with equal spacing; the arrangement of multiple heat exchange pipe assemblies 2 enables a wider range of flame diffusion.

[0039] As a preferred embodiment of the present invention, each heat exchange pipe assembly 2 is composed of a bottom fire pipe channel 21, a middle fire pipe channel 22 and a top fire pipe channel 23, and a second connecting fire pipe channel 25 and a first connecting fire pipe channel 24 are fixedly connected at the junctions of the bottom fire pipe channel 21 and the middle fire pipe channel 22 and the middle fire pipe channel 22 and the top fire pipe channel 23, respectively.

[0040] As a preferred embodiment of the present invention, the bottom fire tube channel 21, the middle fire tube channel 22, the top fire tube channel 23, the first connecting fire tube channel 24, and the second connecting fire tube channel 25 are connected at the ends to form an S-shaped channel. The design of the S-shaped channel can effectively reduce the flue gas running speed, so that a large amount of heat energy is transferred to the water stored in the outer casing 3 of the water tank, and the heating speed is faster, while the exhaust flue gas temperature is lower, which is more environmentally friendly and has higher thermal efficiency.

[0041] As a preferred embodiment of the present invention, a flame inlet 26 is provided at the end of the bottom fire tube channel 21, and the flame inlet 26 is connected to an external ejector burner. Multiple flame baffles 27 are fixedly installed inside the middle fire tube channel 22 and the top fire tube channel 23. Each flame baffle 27 has a flame channel 28 inside. The flame channel 28 is multi-segmented and the inlet and outlet of the flame channel 28 are in the same direction as the flame flow. The arrangement of multiple staggered flame baffles 27 can reduce the flame flow rate on the one hand, and ensure effective contact between the flame and the flame baffle 27 on the other hand, thereby ensuring the outward transfer of heat. The multi-segmented flame channel 28 can further ensure sufficient contact between the flame and the flame baffle 27, so that the heat can be transferred to the external water flow better and more fully.

[0042] As a preferred embodiment of the present invention, the flame baffles 27 are arranged in an alternating pattern, with adjacent flame baffles 27 fixed on different fire tube channel sidewalls, and the inclination directions of adjacent flame baffles 27 are opposite. This opposite-direction design allows the flame to better contact the flame baffles 27 during its passage. A flame channel is formed between adjacent flame baffles 27, and each flame channel is equipped with a heat-conducting steel pipe 29. The heat-conducting steel pipe 29 is fixed between the two side walls of the fire tube channel. Under the impact of the flame, the heat-conducting steel pipe 29 can fully contact the flame, thereby further transferring heat to the external water flow.

[0043] It is worth noting that there is space between the end of each flame deflector 27 and the side wall of the fire tube channel to ensure the normal passage of the flame.

[0044] As a preferred embodiment of the present invention, the water volume control component 7 includes two floating component protective covers 71 disposed inside the outer casing 3 of the water storage tank. Each floating component protective cover 71 has a floating component 72 installed inside. A first baffle net 76 is fixedly installed between the two floating component protective covers 71. A second baffle net 77 communicating with the interior is installed on the side of each floating component protective cover 71. The floating component protective cover 71 can prevent external water flow from entering the floating component protective cover 71 when it is heated to a boiling state and affecting the normal operation of the floating component 72. At the same time, the first baffle net 76 and the second baffle net 77 can effectively reduce the impact of boiling water and make it more gentle, thereby preventing boiling water from rushing into the floating component protective cover 71 and affecting the normal operation of the floating component 72.

[0045] Each floating component protective cover 71 has a stagnant flow space 73 inside, and the floating component 72 is located inside the stagnant flow space 73. The first baffle net 76 is located above the top of the heat exchange pipe assembly 2, and the height of the floating component 72 is higher than the top height of the heat exchange pipe assembly 2. This height setting can ensure that the water can completely submerge the heat exchange pipe assembly 2 when water is added, and can also prevent boiling water from entering the floating component protective cover 71.

[0046] As a preferred embodiment of the present invention, the water volume control component 7 further includes a solenoid valve 74 disposed on an external water pump pipeline, and the solenoid valve 74 and the two floating components 72 are connected to each other by a connecting wire 75.

[0047] As a preferred embodiment of the present invention, the floating component 72 includes a lower fixed plate 721 and an upper fixed plate 722 fixedly installed inside the still flow space 73. Two parallel guide steel pipes 723 are fixedly installed between the lower fixed plate 721 and the upper fixed plate 722. Each guide steel pipe 723 is surrounded by a return spring 724, and a movable float 725 is movably inserted through the two guide steel pipes 723. Water flows into the interior of the floating component protective cover 71 from the second baffle net 77. When the water comes into contact with the movable float 725, it will push the movable float 725 upward.

[0048] As a preferred embodiment of the present invention, both ends of the movable float 725 are fixedly installed with upwardly inclined side baffles 726. The upwardly inclined side baffles 726 can block water, further preventing water from entering the movable float 725 and thus affecting the lower conductive metal block 727 and the upper conductive metal block 729. The lower conductive metal block 727 is fixedly connected to the upper part of the lower fixed plate 721 by a connecting rod. A metal block fixing rod 728 is fixedly installed on the upper fixed plate 722. The metal block fixing rod 728 passes through the lower conductive metal block 727, and the lower conductive metal block 727 can move freely on the metal block fixing rod 728. The upper conductive metal block 729 is fixedly installed at the position of the bottom end of the metal block fixing rod 728 directly opposite the lower conductive metal block 727. The top and bottom ends of the return spring 724 are fixedly installed on the upper fixed plate 722 and the movable float 725, respectively.

[0049] It should be added that the lower conductive metal block 727 and the upper conductive metal block 729 are connected by a connecting wire 75, and the lower conductive metal block 727, the upper conductive metal block 729, and the solenoid valve 74 are connected by a connecting wire 75. This ensures that the lower conductive metal block 727, the upper conductive metal block 729, and the solenoid valve 74 form a complete series circuit. Furthermore, the lower conductive metal block 727, the upper conductive metal block 729, and the solenoid valve 74 are also connected to an external power source through the connecting wire 75, forming a complete series circuit among the five components.

[0050] In practical use, when water has entered the still flow space 73, the water level completely submerges the heat exchange pipe assembly 2. The water contacts the movable float 725 and pushes it upward, compressing the return spring 724, thereby pushing the lower conductive metal block 727 upward until it separates from the upper conductive metal block 729. At this point, the series circuit between the lower conductive metal block 727, the upper conductive metal block 729, and the solenoid valve 74 is broken, and the solenoid valve 74 is closed. Water from the external water pump pipe no longer enters the outer casing 3 of the water storage tank, and water addition stops. When the water level inside the outer casing 3 of the water storage tank drops due to evaporation, the water level... When the movable float 725 contacts the return spring 724, it is pushed downward, thereby pushing the lower conductive metal block 727 downward. When the lower conductive metal block 727 and the upper conductive metal block 729 contact each other, the series circuit between the lower conductive metal block 727, the upper conductive metal block 729, and the solenoid valve 74 is connected, and the solenoid valve 74 is opened. At this time, the water from the external water pump pipe re-enters the water tank outer casing 3, realizing automatic replenishment of the internal water. In this way, the water can be freely replenished, and the water inside the water tank outer casing 3 can always be kept full, avoiding water shortage due to excessive evaporation and thus preventing damage to the entire equipment.

[0051] It should be added that the heat insulation component includes an insulation board 10 disposed on the outer casing 3 of the water storage tank. The insulation board 10 is made of heat insulation material, which can effectively prevent heat loss inside the outer casing 3 of the water storage tank and further improve the efficiency of heat energy utilization.

[0052] It is worth noting that a heat overflow space 11 is formed between the insulation plate 10 and the outer casing 3 of the water storage tank. Several fixed heat-conducting plates 8 are provided inside the heat overflow space 11. Part of the fixed heat-conducting plates 8 extends into the outer casing 3 of the water storage tank, and the other part is located inside the heat overflow space 11. Connecting heat-conducting plates 9 are connected between the fixed heat-conducting plates 8 located inside the heat overflow space 11. Through the setting of the fixed heat-conducting plates 8, it can be ensured that the overflowed heat is transferred back to the water inside the outer casing 3 of the water storage tank. The setting of the connecting heat-conducting plates 9 can collect the heat inside the overflow space 11 and transfer it to the fixed heat-conducting plates 8, and then transfer it to the water inside the outer casing 3 of the water storage tank. Through this setting, heat overflow can be further avoided and the thermal energy utilization rate can be improved.

[0053] The specific working principle is as follows: First, close the drain valve 4 of the water tank. Then, fill the outer casing 3 of the water tank with water through the inlet pipe 5 until the water completely submerges the heat exchange pipe assembly 2. The flame generated by the external ejector burner is injected from the flame inlet 26 and escapes through the middle fire tube channel 22, the top fire tube channel 23, and the exhaust pipe 6. During the process of the flame entering the bottom fire tube channel 21, the middle fire tube channel 22, and the top fire tube channel 23, the bottom fire tube channel 21, the middle fire tube channel 22, and the top fire tube channel 23 are S-shaped, which can effectively reduce the flue gas running speed. This results in a large amount of heat energy being transferred to the water stored in the outer casing 3 of the water tank, heating the water inside and generating steam. The heating speed of this process is faster than that of a general straight-through pipe design, while the exhaust gas temperature is lower, making it more environmentally friendly and more thermally efficient.

[0054] Meanwhile, multiple flame deflectors 27 are fixedly installed inside the intermediate fire tube channel 22 and the top fire tube channel 23. The arrangement of multiple staggered flame deflectors 27 can reduce the flame velocity on the one hand, and ensure effective contact between the flame and the flame deflectors 27 on the other hand, thereby ensuring the outward transfer of heat. The multiple bent flame channels 28 can further ensure sufficient contact between the flame and the flame deflectors 27, so that the heat can be transferred to the external water flow better and more fully. The heat-conducting steel pipe 29 can fully contact the flame, thereby further transferring the heat to the external water flow.

[0055] During the high-temperature evaporation process, water is continuously consumed, requiring constant replenishment. When the water has entered the still flow space 73, the water level completely submerges the heat exchange pipe assembly 2. The water contacts the movable float 725 and pushes it upward, compressing the return spring 724, which in turn pushes the lower conductive metal block 727 upward until it separates from the upper conductive metal block 729. At this point, the series circuit between the lower conductive metal block 727, the upper conductive metal block 729, and the solenoid valve 74 is broken, and the solenoid valve 74 is closed. Water from the external water pump pipe no longer enters the outer casing 3 of the water storage tank, and water addition stops. When the water inside the outer casing 3 of the water storage tank evaporates... When the water level drops, the water no longer contacts the movable float 725. Under the elastic force of the return spring 724, the movable float 725 is pushed down, thereby pushing the lower conductive metal block 727 down. When the lower conductive metal block 727 and the upper conductive metal block 729 come into contact, the series circuit between the lower conductive metal block 727, the upper conductive metal block 729, and the solenoid valve 74 is connected, and the solenoid valve 74 is opened. At this time, the water from the external water pump pipe flows back into the outer casing 3 of the water tank, realizing the automatic replenishment of the internal water. In this way, the water can be freely replenished, and the water inside the outer casing 3 of the water tank can always be kept full, avoiding water shortage due to excessive evaporation and thus preventing damage to the entire equipment.

[0056] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An energy-saving steam generator, comprising a water-storage type outer casing (3), characterized in that: The outer casing (3) of the water tank is equipped with multiple heat exchange pipe assemblies (2). A steam outlet (1) is fixedly installed at the top of the outer casing (3). A drain valve (4) is fixedly installed at the bottom of the outer casing (3). A water inlet pipe (5) communicating with the inside of the outer casing (3) is installed on the side of the outer casing (3) near the top. A flue gas pipe (6) is fixedly installed at the end of each heat exchange pipe assembly (2). A water volume control component (7) that can intelligently control the internal water volume is installed inside the outer casing (3). A heat insulation component is provided on the periphery of the outer casing (3). Each heat exchange pipe assembly (2) is composed of a bottom fire pipe channel (21), a middle fire pipe channel (22) and a top fire pipe channel (23). The bottom fire pipe channel (21) and the middle fire pipe channel (22) and the middle fire pipe channel (22) and the top fire pipe channel (23) are respectively fixedly connected to a second connecting fire pipe channel (25) and a first connecting fire pipe channel (24). The bottom fire tube channel (21), the middle fire tube channel (22), the top fire tube channel (23), the first connecting fire tube channel (24), and the second connecting fire tube channel (25) are connected end to end to form an S-shaped channel; a flame inlet (26) is provided at the end of the bottom fire tube channel (21), and multiple flame baffles (27) are fixedly installed inside the middle fire tube channel (22) and the top fire tube channel (23). Each flame baffle (27) is provided with a flame channel (28) inside. The flame channel (28) is multi-segmented and the inlet and outlet of the flame channel (28) are consistent with the flow direction of the flame; the flame baffles (27) are arranged in an alternating pattern. Two adjacent flame deflectors (27) are fixed on the side walls of different fire tube channels, and the inclination directions of the two adjacent flame deflectors (27) are opposite. A flame flow channel is formed between the two adjacent flame deflectors (27). Each flame flow channel is provided with a heat-conducting steel pipe (29). The heat-conducting steel pipe (29) is fixed between the two side walls of the fire tube channel. The water volume control component (7) includes two floating component protective covers (71) located inside the outer casing (3) of the water storage tank. A floating component (72) is installed inside each of the floating component protective covers (71). A first baffle net (76) is fixedly installed between the two floating component protective covers (71). 1) Each side is equipped with a second baffle net (77) that communicates with the interior. Each floating component protective cover (71) has a stagnant flow space (73) inside. The floating component (72) is located inside the stagnant flow space (73). The first baffle net (76) is located above the top of the heat exchange pipe assembly (2), and the height of the floating component (72) is higher than the top height of the heat exchange pipe assembly (2). The floating component (72) includes a lower fixed plate (721) and an upper fixed plate (722) fixedly installed inside the stagnant flow space (73). Two parallel guide steel pipes (723) are fixedly installed between the lower fixed plate (721) and the upper fixed plate (722). Each guide steel pipe (723) 23) A return spring (724) is surrounded on both sides, and a movable float plate (725) is movably inserted on the two guide steel pipes (723); both ends of the movable float plate (725) are fixedly installed with upwardly inclined side baffle plates (726); a lower conductive metal block (727) is fixedly connected above the lower fixed plate (721) by a connecting rod; a metal block fixing rod (728) is fixedly installed on the upper fixed plate (722); an upper conductive metal block (729) is fixedly installed at the bottom end of the metal block fixing rod (728) directly opposite the lower conductive metal block (727); the top and bottom ends of the return spring (724) are fixedly installed on the upper fixed plate (722) and the movable float plate (725) respectively.

2. The energy-saving steam generator as described in claim 1, characterized in that: The heat exchange pipe assembly (2) has at least three parts, arranged in a side-by-side with equal spacing.

3. The energy-saving steam generator as described in claim 1, characterized in that: The water volume control component (7) also includes a solenoid valve (74) installed on the external water pump pipeline, and the solenoid valve (74) and the two floating components (72) are connected to each other by connecting wires (75).