Efficient condensation through-flow steam generator

Abstract

The utility model discloses an efficient condensation through-flow steam generator, which particularly relates to the field of steam generators and comprises a condensation water jacket, a water partition plate is mounted in the condensation water jacket, a water cavity is formed between the condensation water jacket and the water partition plate, a first water inlet is arranged at the lower end of the water cavity, and a fin coil pipe is arranged in the water partition plate. The upper end of the fin coil pipe is communicated with the upper end of the water cavity, a water outlet is formed in the lower end of the fin coil pipe, and water enters from the first water inlet, sequentially flows through the water cavity and the fin coil pipe and then flows out from the water outlet; the steam generator further comprises a heating device which is used for burning in the middle of the condensate water jacket to generate heat. The water cavity and the fin coil pipe are arranged, the water cavity surrounds the side wall of the condensate water jacket, water in the water cavity can efficiently absorb waste heat of smoke flowing through the smoke cavity, and compared with the mode that multiple water pipes are adopted for absorption in the prior art, gaps do not exist in the waste heat absorption area of the scheme, and efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of steam generators, and more specifically, to a high-efficiency condensing through-flow steam generator. Background Art

[0002] A steam generator is a device used to generate steam. The working process includes heating water, vaporizing it, and transporting steam. There is a heating device inside the steam generator that can generate heat by burning fuel. When this heat is transferred to water, the temperature of the water will gradually rise. When it reaches a certain temperature, the water will begin to vaporize from liquid to gas. This process will release a large amount of heat energy, which will further accelerate the vaporization process of water. After the steam is generated, it will be transported to where it is needed.

[0003] After the steam generator uses finned tubes to absorb the heat from the burner, the residual heat is directly absorbed by several water pipes, causing a large amount of heat to escape from between the water pipes, and the heat utilization rate is not high. Utility Model Content

[0004] The utility model provides a high-efficiency condensing cross-flow steam generator, which aims to solve the problem that the waste heat of the existing steam generator is directly absorbed by several water pipes, so that a large amount of heat escapes from between the water pipes, and the heat utilization rate is low.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a high-efficiency condensing through-flow steam generator, comprising a condensing water jacket, a water baffle being installed inside the condensing water jacket, a water cavity being formed between the condensing water jacket and the water baffle, a water inlet being provided at the lower end of the water cavity, a finned coil being provided inside the water baffle, the upper end of the finned coil being connected to the upper end of the water cavity, a water outlet being provided at the lower end of the finned coil, water entering from the water inlet and flowing through the water cavity and the finned coil in sequence before flowing out from the water outlet; the steam generator also includes a heating device, the heating device being used to burn in the middle of the condensing water jacket to generate heat, a flue gas baffle being provided between the water baffle and the finned coil, a flue gas cavity being formed between the flue gas baffle and the water baffle, the upper end of the flue gas cavity being opened, a smoke outlet being provided on one side of the bottom of the smoke cavity, and the exhaust gas burned by the heating device being discharged from the smoke outlet after passing through the smoke cavity; a steam generating device being provided at the inner side of the finned coil, the steam generating device being used to absorb heat and generate steam.

[0006] In a preferred embodiment, the steam generating device includes a water collecting tank and a steam bin respectively arranged at the bottom and the top of the condensing water jacket. The water collecting tank and the steam bin are connected by a finned tube. A water inlet 2 is provided at the bottom of the finned tube, and a steam outlet is provided above the steam bin. The steam generator also includes a water pump, and the water inlet end of the water pump is connected to the water outlet, and the water outlet end is connected to the water inlet 2.

[0007] In a preferred embodiment, the fin coil is arranged in a spiral shape, and the fin tube is located inside the fin coil.

[0008] In a preferred embodiment, the finned tubes are arranged in at least two circles, and a flue gas flow equalizing plate is provided between the finned tubes in each circle.

[0009] In a preferred embodiment, a separation bin is provided above the steam bin, and the steam bin and the separation bin are separated by a steam-water separation baffle 1. A plurality of steam-water separation baffles 2 are provided inside the separation bin. Steam enters the separation bin from the steam bin through the steam-water separation baffle 1, and then passes through the steam-water separation baffle 2 and is discharged from the steam outlet.

[0010] In a preferred embodiment, the heating device includes a burner arranged in the middle of the condensate jacket and a fan arranged outside the condensate jacket. The air inlet of the fan is connected to a Venturi and a gas valve in sequence, the air outlet of the fan is connected to the burner, and an ignition needle is provided on the outside of the burner.

[0011] In a preferred embodiment, a flame needle is provided on the outside of the burner.

[0012] The beneficial effects of the present invention are:

[0013] 1. The utility model provides a water cavity and a finned coil. The water cavity surrounds the side wall of the condenser water jacket, so that the water in the water cavity can efficiently absorb the waste heat of the flue gas flowing through the flue gas cavity. Compared with the existing method of using several water pipes for absorption, there is no gap in the area where the waste heat is absorbed in this solution, which is more efficient.

[0014] 2. By using a water pump to send water that has absorbed waste heat into the fin tubes, the temperature rise time of the water in the fin tubes can be reduced, making the steam generation faster. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 For this utility model Figure 1 sectional view of .

[0017] Figure 3 It is a cross-sectional view of the local structure of the utility model.

[0018] Figure 4 This is a schematic structural diagram of the steam generating device of the present invention.

[0019] Figure 5 For this utility model Figure 4 sectional view of .

[0020] Figure 6This is a structural diagram of the condensation water jacket of the utility model.

[0021] Figure 7 For this utility model Figure 6 sectional view of .

[0022] Figure 8 It is a structural schematic diagram of the heating device of the present utility model.

[0023] Figure 9 This is a structural diagram of the flue gas flow equalizing plate of the present invention.

[0024] The accompanying drawings are marked as follows: 1. Condensate jacket; 10. Water inlet 1; 11. Water baffle; 12. Water cavity; 13. Fin coil; 14. Water outlet; 2. Steam generating device; 20. Water collecting tank; 21. Steam bin; 22. Fin tube; 23. Water inlet 2; 24. Steam outlet; 25. Separation bin; 26. Steam-water separation baffle 1; 27. Steam-water separation baffle 2; 3. Water pump; 4. Heating device; 41. Fan; 42. Burner; 43. Ignition needle; 44. Venturi; 45. Gas valve; 46. Flame needle; 5. Smoke baffle; 51. Smoke cavity; 52. Smoke exhaust port; 6. Smoke equalizing plate. DETAILED DESCRIPTION

[0025] The present application is described in further detail below in conjunction with the accompanying drawings. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technicians in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0026] Refer to the instruction manual Figures 1-9 A high-efficiency condensing through-flow steam generator includes a condensing water jacket 1, a water baffle 11 is installed inside the condensing water jacket 1, a water cavity 12 is formed between the condensing water jacket 1 and the water baffle 11, the lower end of the water cavity 12 has a water inlet 10, a finned coil 13 is provided inside the water baffle 11, the upper end of the finned coil 13 is communicated with the upper end of the water cavity 12, and the lower end of the finned coil 13 has a water outlet 14, water enters from the water inlet 10 and flows through the water cavity 12 and the finned coil 13 in sequence before flowing out from the water outlet 14; the steam generator also It includes a heating device 4, which is used to burn in the middle of the condensing water jacket 1 to generate heat. A flue gas baffle 5 is provided between the water baffle 11 and the fin coil 13. A flue gas cavity 51 is formed between the flue gas baffle 5 and the water baffle 11. The upper end of the flue gas cavity 51 is open, and a flue gas outlet 52 is provided on one side of the bottom of the flue gas cavity 51. The exhaust gas burned by the heating device 4 is discharged from the flue gas outlet 52 after passing through the flue gas cavity 51; a steam generating device 2 is provided on the inner side of the fin coil 13, and the steam generating device 2 is used to absorb heat and generate steam.

[0027] In this embodiment, if Figure 2-Figure 5 As shown, the steam generating device 2 includes a water collecting tank 20 and a steam bin 21 respectively arranged at the bottom and the top of the condensing water jacket 1. The water collecting tank 20 and the steam bin 21 are connected through a fin tube 22. A water inlet 23 is provided at the bottom of the fin tube 22, and a steam outlet 24 is provided above the steam bin 21. The steam generator also includes a water pump 3. The water inlet end of the water pump 3 is connected to the water outlet 14, and the water outlet end is connected to the water inlet 23.

[0028] Furthermore, the finned coil 13 is spirally arranged, and the finned tube 22 is located inside the finned coil 13 .

[0029] Working principle: The heating device 4 burns to generate smoke. The flow path of the smoke is as follows Figure 2 As shown, the smoke passes through the fin tube 22 and the fin coil 13 in sequence, then flows into the smoke chamber 51 from the upper end, and then flows out from the exhaust port 52 on the lower side. Figure 3 As shown, water enters the water chamber 12 from the water inlet 10, flows into the finned coil 13 from the top, and flows into the water pump 3 from the water outlet 14. The water pump 3 then delivers the water to the water collection tank 20, and then enters the finned tube 22. The heating device 4 burns and produces flue gas. The heat is absorbed when it passes through the finned tube 22, and steam is generated inside the steam bin 21, which is then discharged from the steam outlet 24. When the flue gas flows through the finned coil 13 and the flue gas chamber 51, the residual heat is absorbed by the finned coil 13 and the water in the water chamber 12. The water chamber 12 and the flue gas chamber 51 are both annular cavities, which can enable the water chamber 12 to absorb the residual heat more fully.

[0030] The above technical solution provides a water chamber 12 and finned coils 13. The water chamber 12 surrounds the sidewalls of the condenser jacket 1, allowing the water within the water chamber 12 to efficiently absorb the residual heat of the flue gas flowing through the flue gas chamber 51. Compared with the prior art method of using multiple water pipes for absorption, this solution has no gaps in the residual heat absorption area, resulting in higher efficiency. The water pump 3 delivers the absorbed residual heat to the finned tubes 22, reducing the temperature rise time of the water within the finned tubes 22 and accelerating steam generation.

[0031] Refer to the instruction manual Figures 1-9 The finned tubes 22 are arranged in at least two circles, and a flue gas flow equalizing plate 6 is provided between the finned tubes 22 in each circle.

[0032] It should be noted that the flue gas flow equalizing plate 6 is an annular structure with a plurality of holes on its surface. When the flue gas passes through the flue gas flow equalizing plate 6, the flue gas can be evenly distributed, so that the finned tubes 22 absorb heat more efficiently.

[0033] Refer to the instruction manual Figure 5A separation bin 25 is provided above the steam bin 21. The steam bin 21 and the separation bin 25 are separated by a steam-water separation baffle 1 26. A plurality of steam-water separation baffles 27 are provided inside the separation bin 25. Steam enters the separation bin 25 from the steam bin 21 through the steam-water separation baffle 1 26, and then passes through the steam-water separation baffle 2 27 and is discharged from the steam outlet 24.

[0034] It should be noted that the steam-water separation baffle 1 26 is a flat porous structure, and the steam-water separation baffle 2 27 is an annular porous structure. After steam is generated in the steam bin 21, larger water droplets will be generated during the flow process, which can be separated by the steam-water separation baffle 1 26 and the steam-water separation baffle 2 27.

[0035] In this embodiment, if Figure 2 and Figure 8 As shown, the heating device 4 includes a burner 42 arranged in the middle of the condensate jacket 1 and a fan 41 arranged outside the condensate jacket 1. The air inlet of the fan 41 is connected to a venturi 44 and a gas valve 45 in sequence. The air outlet of the fan 41 is connected to the burner 42, and an ignition needle 43 is provided on the outside of the burner 42.

[0036] It should be noted that the gas passes through the gas valve 45 and is mixed with air in the venturi 44 , and then enters the fan 41 . The fan 41 blows the gas to the burner 42 , and the ignition needle 43 ignites the gas to burn.

[0037] Further, if Figure 8 As shown, a flame needle 46 is provided on the outside of the burner 42 .

[0038] It should be noted that the flame sensing needle 46 is used to sense and detect the burning state of the flame. If the flame is accidentally extinguished, the flameout protection device will automatically cut off the gas source.

[0039] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the scope of the present invention, all of which fall within the scope of protection of the present invention.

Claims

1. A high-efficiency condensing cross-flow steam generator, characterized by: The invention comprises a condensing water jacket (1), wherein a water baffle (11) is installed inside the condensing water jacket (1), a water cavity (12) is formed between the condensing water jacket (1) and the water baffle (11), the lower end of the water cavity (12) is provided with a water inlet (10), a finned coil (13) is provided inside the water baffle (11), the upper end of the finned coil (13) is communicated with the upper end of the water cavity (12), the lower end of the finned coil (13) is provided with a water outlet (14), water enters from the water inlet (10) and flows through the water cavity (12) and the finned coil (13) in sequence before flowing out from the water outlet (14); The steam generator further comprises a heating device (4), the heating device (4) being used for burning in the middle of the condensing water jacket (1) to generate heat, a smoke baffle (5) being provided between the water baffle (11) and the finned coil (13), a smoke cavity (51) being formed between the smoke baffle (5) and the water baffle (11), the upper end of the smoke cavity (51) being open, a smoke outlet (52) being provided on one side of the bottom of the smoke cavity (51), and exhaust gas burned by the heating device (4) being discharged from the smoke outlet (52) after passing through the smoke cavity (51); A steam generating device (2) is provided inside the finned coil (13), and the steam generating device (2) is used to absorb heat and generate steam.

2. A high-efficiency condensing through-flow steam generator according to claim 1, characterized in that: The steam generating device (2) comprises a water collecting box (20) and a steam bin (21) respectively arranged at the bottom and the top of the condensing water jacket (1); the water collecting box (20) and the steam bin (21) are connected via a finned tube (22); a water inlet 2 (23) is provided at the bottom of the finned tube (22); a steam outlet (24) is provided above the steam bin (21); the steam generator further comprises a water pump (3); the water inlet end of the water pump (3) is connected to the water outlet (14), and the water outlet end is connected to the water inlet 2 (23).

3. A high-efficiency condensing through-flow steam generator according to claim 2, characterized in that: The finned coil (13) is arranged in a spiral shape, and the finned tube (22) is located on the inner side of the finned coil (13).

4. The high-efficiency condensing through-flow steam generator according to claim 2, characterized in that: The finned tubes (22) are arranged in at least two circles, and a flue gas flow equalizing plate (6) is provided between the finned tubes (22) in each circle.

5. The high-efficiency condensing through-flow steam generator according to claim 2, characterized in that: A separation chamber (25) is provided above the steam chamber (21). The steam chamber (21) and the separation chamber (25) are separated by a steam-water separation baffle (26). A plurality of steam-water separation baffles (27) are provided inside the separation chamber (25). Steam enters the separation chamber (25) from the steam chamber (21) through the steam-water separation baffle (26) and then passes through the steam-water separation baffle (27) before being discharged from the steam outlet (24).

6. The high-efficiency condensing through-flow steam generator according to claim 1, characterized in that: The heating device (4) comprises a burner (42) arranged in the middle of the condensing water jacket (1), and a fan (41) arranged outside the condensing water jacket (1); the air inlet of the fan (41) is connected to a venturi (44) and a gas valve (45) in sequence; the air outlet of the fan (41) is connected to the burner (42); and an ignition needle (43) is provided on the outside of the burner (42).

7. The high-efficiency condensing through-flow steam generator according to claim 6, characterized in that: A flame sensing needle (46) is provided on the outer side of the burner (42).

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