Steam generating device

Abstract

The utility model relates to a steam generating device, including the first end cover of first through -hole, the second end cover of second through -hole, pipe group, fairing, install the first fairing and second fairing between the first end cover and the second end cover, the first end cover is equipped with the air storehouse, the second end cover is equipped with the water storehouse, the pipe group includes the outer tube and the inner tube of embedding outer tube, and there is cavity between the inner tube and the outer tube, and one end of outer tube penetrates first end cover and is communicated with the air storehouse, and the other end penetrates second end cover and is communicated with the water storehouse, and one end of inner tube penetrates first end cover through first through -hole, and the other end penetrates second end cover through second through -hole, the first fairing is set up between the outer tube of adjacent in the inner ring pipe group, and the second fairing is set up between the outer tube of adjacent in the outer ring pipe group, and one end of first fairing and first end cover remain third through -hole, and one end of second fairing and second end cover remain fourth through -hole, the outer ring pipe group sets up the fairing with the fairing chamber. The utility model has overcome the problem of local overheating or heating deficiency.

Description

Technical Field

[0001] This utility model relates to the field of steam preparation technology, and in particular to a steam generating device. Background Technology

[0002] Steam generators, as core equipment for converting thermal energy into steam kinetic energy, play a vital role in power generation, industrial processing, medical disinfection, and residential heating. With increasing energy demand and the advancement of energy conservation and emission reduction policies, higher requirements are being placed on the thermal efficiency, stability, and energy utilization rate of steam generators. Currently, steam generators using fuel combustion have become one of the mainstream equipment in the industrial sector due to their advantages such as strong energy adaptability.

[0003] In existing technologies, fuel-fired steam generators commonly suffer from uneven heating, severely hindering performance improvement. This uneven heating is prevalent in actual operation. On one hand, traditional heating structures are poorly designed, such as a single heating element layout and uneven fluid channel distribution, leading to excessive heat concentration in some areas while other areas are underheated. On the other hand, unstable fluid flow, with significant differences in flow velocity and volume within the generator, results in inconsistent heat exchange efficiency. This uneven heating triggers a series of negative impacts. From a performance perspective, localized overheating can easily lead to pipe scaling, corrosion, and even bursting, shortening equipment lifespan. Simultaneously, low steam generation efficiency fails to meet high-load production demands, resulting in energy waste. Industry statistics indicate that uneven heating can reduce the thermal efficiency of steam generators by 15%-30%, significantly increasing operating costs.

[0004] Therefore, there is an urgent need to provide a steam generating device that can overcome the above-mentioned technical defects. Utility Model Content

[0005] Therefore, the technical problem to be solved by this utility model is to overcome the problems of uneven heating and low thermal efficiency of traditional steam generators in the prior art, and to propose a steam generating device.

[0006] To solve the above-mentioned technical problems, this utility model provides a steam generating device, comprising: The first end cap has an air chamber inside. The first end cap has a first outer surface and a first inner surface that are arranged opposite each other along the height direction. The first end cap has a first through hole that penetrates the first outer surface and the first inner surface. The second end cap is provided corresponding to the first end cap. A water tank is provided inside the second end cap. The second end cap has a second outer surface and a second inner surface that are arranged opposite each other along the height direction. A second through hole is provided on the second end cap that penetrates the second outer surface and the second inner surface. A pipe assembly includes an inner pipe and an outer pipe. The inner pipe is embedded in the outer pipe, and a cavity is reserved between the inner pipe and the outer pipe. Fluid is disposed in the cavity. One end of the outer pipe penetrates the first inner surface of the first end cap and communicates with the air chamber. The other end of the outer pipe penetrates the second inner surface of the second end cap and communicates with the water chamber. One end of the inner pipe penetrates the first outer surface of the first end cap through the first through hole, and the other end of the inner pipe penetrates the second outer surface of the second end cap through the second through hole. Two rings of pipes are arranged between the first end cap and the second end cap. In the inner ring of pipes, a first guide plate is provided between adjacent outer pipes, and in the outer ring of pipes, a second guide plate is provided between adjacent outer pipes. Both the first and second guide plates are arranged along the length of the outer pipes. One end of the first guide plate is connected to the second inner surface of the second end cap, and the other end is provided with a third through hole to the first inner surface of the first end cap. One end of the second guide plate is connected to the first inner surface of the first end cap, and the other end is provided with a fourth through hole to the second inner surface of the second end cap. A flow guide shroud is provided around the outer ring of the pipe assembly. A flow guide cavity is provided between the flow guide shroud and the outer pipe in the outer ring of the pipe assembly. The flow guide cavity is connected to the fourth through hole. The flow guide cavity extends from the position of the fourth through hole to the second end cap and wraps around the second end cap.

[0007] In one embodiment of the present invention, a gas-water separator is further included. The gas-water separator is disposed in the gas chamber and is parallel to the first outer surface and / or the first inner surface of the first end cap, so as to divide the gas chamber into two chambers.

[0008] In one embodiment of this utility model, it further includes an inlet pipe and a drain pipe, which are respectively connected to the water tank.

[0009] In one embodiment of this utility model, an air outlet pipe is also included, which is connected to the air chamber.

[0010] In one embodiment of the present invention, a fume hood is further included. A fume hood is provided around the outer ring of the pipe assembly. A flue is provided between the fume hood and the outer pipe in the outer ring of the pipe assembly. The flue wraps around the first end cap and extends toward the flow guide to connect with the flow guide.

[0011] In one embodiment of this utility model, a flue opening is provided on the flue.

[0012] In one embodiment of this utility model, the inner ring of tubes forms a combustion chamber.

[0013] In one embodiment of the present invention, a burner is further included, which is disposed in the combustion chamber.

[0014] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art: 1. This utility model, through the innovative structural design and coordinated operation of a first end cap, a second end cap, a pipe assembly, a first guide plate, a second guide plate, and a guide hood, arranges fluid in the cavity between the outer and inner pipes of the pipe assembly. The first guide plate, the second guide plate, and the guide hood guide the high-temperature flue gas to flow along the outer wall of the outer pipe in the inner ring pipe assembly, and then discharge it from the inner pipe in the outer ring pipe assembly. Compared with the traditional linear or disordered flow mode, the high-temperature flue gas of this utility model, which flows along a specific path, greatly increases the contact area and contact time between the high-temperature flue gas and the pipe assembly, avoids local overheating or insufficient heating, and ensures that the heat carried by the flue gas can be absorbed by the fluid in the pipe to the maximum extent, thereby significantly improving the heat exchange efficiency of the steam generator, effectively reducing heat loss, and improving steam output and quality. 2. The efficient heat exchange and uniform heat distribution of this utility model enable the steam generator to make fuller use of the heat generated by fuel combustion, reduce energy consumption, and produce more steam with the same fuel input, effectively reducing fuel waste and conforming to the development trend of energy conservation and emission reduction. The structural design of this utility model achieves efficient heat exchange while maintaining the compactness of the overall structure, reducing the space occupied by the equipment and facilitating installation and use in different industrial scenarios. Attached Figure Description

[0015] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the structure of a steam generator proposed in an embodiment of this utility model.

[0017] Figure 2 yes Figure 1 A three-dimensional schematic diagram of the upper part of the structure.

[0018] The following are the annotations in the accompanying drawings: 1. First end cap; 101. Gas chamber; 102. First outer surface; 103. First inner surface; 104. First through hole; 2. Second end cap; 201. Water chamber; 202. Second outer surface; 203. Second inner surface; 204. Second through hole; 301. Inner tube; 302. Outer tube; 303. Cavity; 4. First guide plate; 5. Second guide plate; 6. Third through hole; 7. Fourth through hole; 8. Flow guide hood; 801. Flow guide cavity; 9. Water inlet pipe; 10. Drain pipe; 11. Gas outlet pipe; 12. Combustion chamber; 13. Burner; 14. Fume hood; 1401. Flue opening; 1402. Flue; 15. Gas-water separator. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0020] Reference Figure 1 and Figure 2As shown, this utility model embodiment provides a steam generator, including a first end cover 1, a second end cover 2, a pipe assembly, a first guide plate 4, a second guide plate 5, and a guide shroud 8. The first end cover 1 has a gas chamber 101 inside, and has a first outer surface and a first inner surface 103 arranged opposite each other along the height direction. A first through hole 104 is provided on the first end cover 1, penetrating the first outer surface and the first inner surface 103. The second end cover 2 is correspondingly disposed to the first end cover 1, and has a water chamber 201 inside. The second end cover 2 has a water chamber 201 arranged opposite each other along the height direction. The second outer surface 202 and the second inner surface 203 are provided. A second through hole 204 is provided on the second end cap 2, penetrating the second outer surface 202 and the second inner surface 203. The pipe assembly includes an inner pipe 301 and an outer pipe 302. The inner pipe 301 is embedded in the outer pipe 302, and a cavity 303 is reserved between the inner pipe 301 and the outer pipe 302. Fluid is arranged in the cavity 303. One end of the outer pipe 302 penetrates the first inner surface 103 of the first end cap 1 and communicates with the air chamber 101. The other end of the outer pipe 302 penetrates the second inner surface 203 of the second end cap 2 and communicates with the water chamber 2. 01. One end of the inner tube 301 passes through the first outer surface of the first end cap 1 through the first through hole 104, and the other end of the inner tube 301 passes through the second outer surface 202 of the second end cap 2 through the second through hole 204. Two rings of tubes are arranged between the first end cap 1 and the second end cap 2. In the inner ring of tubes, a first guide plate 4 is provided between adjacent outer tubes 302, and in the outer ring of tubes, a second guide plate 5 is provided between adjacent outer tubes 302. Both the first guide plate 4 and the second guide plate 5 are arranged along the length of the outer tube 302. One end of the first guide plate 4 is connected to the second... The second inner surface 203 of the end cap 2 has a third through hole 6 reserved at the other end and the first inner surface 103 of the first end cap 1. One end of the second guide plate 5 is connected to the first inner surface 103 of the first end cap 1, and the other end is reserved with a fourth through hole 7 reserved at the second inner surface 203 of the second end cap 2. A guide shroud 8 is provided around the outer ring of the pipe group. A guide cavity 801 is provided between the guide shroud 8 and the outer pipe 302 in the outer ring of the pipe group. The guide cavity 801 is connected to the fourth through hole 7. The guide cavity 801 extends from the position of the fourth through hole 7 to the second end cap 2 and wraps around the second end cap 2.

[0021] This invention utilizes an innovative structural design and coordinated operation of a first end cap 1, a second end cap 2, a pipe assembly, a first guide plate 4, a second guide plate 5, and a guide shroud 8. Fluid is arranged in the cavity 303 between the outer pipe 302 and the inner pipe 301 of the pipe assembly. The first guide plate 4, the second guide plate 5, and the guide shroud 8 guide the high-temperature flue gas to flow along the outer wall of the outer pipe 302 in the inner ring pipe assembly, and then discharge it from the inner pipe 301 in the outer ring pipe assembly. Compared to traditional linear or disordered flow methods, this invention significantly increases the contact area and contact time between the high-temperature flue gas and the pipe assembly by allowing the high-temperature flue gas to flow along a specific path. This avoids localized overheating or insufficient heating, ensuring that the heat carried by the flue gas is absorbed by the fluid inside the pipe to the maximum extent. This significantly improves the heat exchange efficiency of the steam generator, effectively reduces heat loss, and increases steam output and quality.

[0022] In one specific embodiment, the steam generator further includes a water inlet pipe 9, a drain pipe 10, and a steam outlet pipe 11. The water inlet pipe 9 and the drain pipe 10 are respectively connected to the water tank 201, and the steam outlet pipe 11 is connected to the steam tank 101. Water enters the water tank 201 of the second end cover 2 through the water inlet pipe 9, and then enters the cavity 303 between the outer pipe 302 and the inner pipe 301. After absorbing the heat of the flue gas, it vaporizes. The steam enters the steam tank 101 of the first end cover 1 through the inner pipe 301, and is finally output for use through the steam outlet pipe 11.

[0023] In one specific embodiment, the steam generating device further includes a burner 13. The inner ring of pipes forms a combustion chamber 12, and the burner 13 is disposed in the combustion chamber 12. High-temperature flue gas is generated by the burner 13. Due to the obstruction of the first guide plate 4, the high-temperature flue gas flows up and down along the outer pipe 302 in the inner ring of pipes, that is, it comes into full contact with the outer pipe 302 of the inner ring of pipes. The temperature of the outer wall of the outer pipe 302 rises rapidly, and the heat is conducted to the water in the inter-pipe cavity 303 through the metal wall, causing the water to gradually heat up and vaporize. Then, it enters the space between the inner and outer ring of pipes through the third through hole 6. The second guide plate 5 guides the flue gas spirally down between the inner and outer ring of pipes. The high-temperature flue gas, after further heat recovery and cooling, enters the guide shroud 8 through the fourth through hole 7. The guide shroud 8 guides the flue gas into the inner tube 301, where the residual heat is recovered and reused, and finally discharged from the inner tube 301. Compared with the traditional straight or disordered flow mode, the high-temperature flue gas flowing along a specific path in this invention significantly increases the contact area and contact time between the high-temperature flue gas and the tube assembly, avoiding local overheating or insufficient heating, and ensuring that the heat carried by the flue gas can be absorbed by the fluid inside the tube to the maximum extent. This significantly improves the heat exchange efficiency of the steam generator, effectively reduces heat loss, and improves steam output and quality.

[0024] Furthermore, the steam generator also includes a fume hood 14, which is provided around the outer ring of the pipe assembly. A flue 1402 is provided between the fume hood 14 and the outer pipe 302 in the outer ring of the pipe assembly. The flue 1402 covers the first end cap 1 and extends in the direction of the guide hood 8 to connect with the guide hood 8. A flue 1402 opening 1401 is provided on the flue 1402. After the flue gas is discharged from the inner pipe 301 in the outer ring of the pipe assembly, it enters the fume hood 14 and is finally recovered through the flue 1402 opening 1401.

[0025] In one specific embodiment, the steam generating device further includes a gas-water separator 15, which is disposed in the gas chamber 101 and is parallel to the first outer surface and / or the first inner surface 103 of the first end cover 1, so as to divide the gas chamber 101 into two chambers. Preferably, the gas-water separator 15 is arranged parallel to the gas chamber 101 of the first end cover 1, dividing the gas chamber 101 into two independent chambers, upper and lower. When the gas-water mixture output from the cavity 303 enters the lower chamber of the gas chamber 101, the flow direction of the gas-water mixture changes abruptly due to the obstruction of the gas-water separator 15. The steam density is relatively low, and under the action of inertia, it passes upward through the pre-set guide holes (usually distributed in an array, with a hole diameter of about 3-5 mm) on the gas-water separator 15 and enters the upper chamber. Meanwhile, the denser water droplets impact the surface of the gas-water separator 15 due to inertia, and under the action of gravity and surface tension, they converge into a water flow, flow back to the lower chamber along the plate surface, and are finally discharged through the drain pipe 10, thereby achieving efficient separation of steam and water.

[0026] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A steam generating device, characterized in that, include: The first end cap has an air chamber inside. The first end cap has a first outer surface and a first inner surface that are arranged opposite each other along the height direction. The first end cap has a first through hole that penetrates the first outer surface and the first inner surface. The second end cap is provided corresponding to the first end cap. A water tank is provided inside the second end cap. The second end cap has a second outer surface and a second inner surface that are arranged opposite each other along the height direction. A second through hole is provided on the second end cap that penetrates the second outer surface and the second inner surface. A pipe assembly includes an inner pipe and an outer pipe. The inner pipe is embedded in the outer pipe, and a cavity is reserved between the inner pipe and the outer pipe. Fluid is disposed in the cavity. One end of the outer pipe penetrates the first inner surface of the first end cap and communicates with the air chamber. The other end of the outer pipe penetrates the second inner surface of the second end cap and communicates with the water chamber. One end of the inner pipe penetrates the first outer surface of the first end cap through the first through hole, and the other end of the inner pipe penetrates the second outer surface of the second end cap through the second through hole. Two rings of pipes are arranged between the first end cap and the second end cap. In the inner ring of pipes, a first guide plate is provided between adjacent outer pipes, and in the outer ring of pipes, a second guide plate is provided between adjacent outer pipes. Both the first and second guide plates are arranged along the length of the outer pipes. One end of the first guide plate is connected to the second inner surface of the second end cap, and the other end is provided with a third through hole to the first inner surface of the first end cap. One end of the second guide plate is connected to the first inner surface of the first end cap, and the other end is provided with a fourth through hole to the second inner surface of the second end cap. A flow guide shroud is provided around the outer ring of the pipe assembly. A flow guide cavity is provided between the flow guide shroud and the outer pipe in the outer ring of the pipe assembly. The flow guide cavity is connected to the fourth through hole. The flow guide cavity extends from the position of the fourth through hole to the second end cap and wraps around the second end cap.

2. The steam generating device according to claim 1, characterized in that: It also includes a gas-water separator, which is disposed in the gas chamber and is parallel to the first outer surface and / or the first inner surface of the first end cap, so as to divide the gas chamber into two chambers.

3. A steam generating device according to claim 1 or 2, characterized in that: It also includes an inlet pipe and an outlet pipe, which are respectively connected to the water tank.

4. A steam generating device according to claim 3, characterized in that: It also includes an air outlet pipe, which is connected to the air chamber.

5. A steam generating device according to claim 3, characterized in that: It also includes a fume hood, which is provided around the outer ring of the pipe assembly. A flue is provided between the fume hood and the outer pipe in the outer ring of the pipe assembly. The flue wraps around the first end cap and extends towards the flow guide to connect with the flow guide.

6. A steam generating device according to claim 5, characterized in that: The flue is equipped with a flue opening.

7. A steam generating device according to claim 6, characterized in that: The inner ring of tubes forms a combustion chamber.

8. A steam generating device according to claim 7, characterized in that: It also includes a burner disposed in the combustion chamber.

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