Vertical steam generator device

Abstract

The utility model discloses a vertical steam generator device, which relates to the field of waste heat boiler devices and comprises a smoke inlet pipeline, an upper tube plate, a barrel, a smoke tube, a lower tube plate and a smoke outlet pipeline. And after passing through the through holes of the upper tube plate, the smoke tube and the through holes of the lower tube plate, the liquid leaves from the smoke outlet pipeline, after entering from the water inlet pipeline, the liquid is subjected to heat exchange to become a steam-water mixture, and the steam-water mixture sequentially passes through the cavity and the steam collecting pipeline and finally enters the steam collecting box. According to the utility model, the waste heat boiler is arranged in the vertical flue, so that the occupied area of the waste heat boiler is reduced, and the whole arrangement of the waste heat boiler is compact.

Description

Technical Field

[0001] The utility model relates to the field of waste heat boiler devices, in particular to a vertical steam generator device. Background Art

[0002] Waste heat boiler steam generator refers to a device that uses the waste heat in waste gas, waste materials or waste liquid in various industrial processes to heat desalted water to saturated steam through heat exchange. The working principle of waste heat boiler is that fuel oil, gas, and coal are burned to produce high-temperature flue gas to release heat, and the high-temperature flue gas becomes low-temperature flue gas and is discharged into the atmosphere through the chimney or the low-temperature flue gas is recovered. Since waste heat boilers greatly improve the utilization rate of the heat released by fuel combustion, this type of boiler is very energy-saving.

[0003] Waste heat boilers are usually composed of economizers, steam generators, superheaters, and heat exchange tube groups such as headers and drums. In the economizer, the boiler feed water is preheated, and the feed water temperature rises to a level close to the saturation temperature. In the steam generator, the feed water phase changes into saturated steam, and in the superheater, the saturated steam is heated to a certain superheat temperature. Usually, the steam generator adopts a water tube type, which requires the flue gas to enter from the upper left side and exit from the lower right side, while the water side enters from the lower side and exits from the upper side. Therefore, the steam generator needs to be placed separately in the layout, resulting in an increase in the floor space of the entire device.

[0004] Therefore, those skilled in the art are in urgent need of providing a vertical steam generator device that can reduce the floor space of the waste heat boiler and make the overall layout of the waste heat boiler compact. Utility Model Content

[0005] The utility model aims to provide a vertical steam generator device, which can reduce the floor space of a waste heat boiler and make the overall layout of the waste heat boiler compact.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] The utility model discloses a vertical steam generator device, comprising a smoke inlet pipe, an upper tube plate, a cylinder, a smoke pipe, a lower tube plate and a smoke outlet pipe, wherein the cylinder and the smoke pipe are arranged vertically, the top and bottom ends of the cylinder are respectively connected to the upper tube plate and the lower tube plate, the cylinder and the upper tube plate and the lower tube plate form a sealed cavity, the cavity is located at the periphery of the smoke pipe, and liquid is contained in the cavity;

[0008] The smoke pipe is connected to the inside of the cylinder, one end of the smoke pipe is connected to the smoke inlet pipe through the through hole of the upper tube plate, and the other end of the smoke pipe is connected to the smoke outlet pipe through the through hole of the lower tube plate;

[0009] The smoke enters from the smoke inlet pipe, passes through the through hole of the upper tube plate, the smoke pipe, and the through hole of the lower tube plate, and then leaves from the smoke outlet pipe.

[0010] Preferably, the bottom of the cylinder is connected to a water inlet pipe, the water inlet pipe is connected to the cavity, the upper tube plate is connected to a steam collecting pipe, one end of the steam collecting pipe is connected to the cavity, and the other end of the steam collecting pipe is connected to a steam collecting tank. After the liquid enters from the water inlet pipe, heat exchange is performed to become a steam-water mixture, and the liquid passes through the cavity and the steam collecting pipe in sequence and finally enters the steam collecting tank.

[0011] Preferably, a sewage pipe is connected to the lower tube plate, and one end of the sewage pipe is connected to the cavity, and the other end of the sewage pipe extends to the outside of the smoke outlet pipe.

[0012] Preferably, the inner surface of the flue gas inlet pipe is provided with masonry casting materials, a smoke pipe protection sleeve is provided in the smoke gas inlet pipe, and the smoke pipe protection sleeve is welded to the upper tube plate.

[0013] Preferably, a manhole door is provided on the wall of the cylinder, and a cylinder support is connected to the outer wall of the cylinder.

[0014] Preferably, baffles are horizontally arranged on the walls of the cylinder and the smoke pipe, respectively, and the baffles are evenly arranged in the circumferential direction and the vertical direction.

[0015] Compared with the prior art, the beneficial technical effects of the utility model are:

[0016] (1) The hot flue gas or coal gas of the utility model passes through the flue gas inlet pipe, the smoke pipe, and the flue gas outlet pipe from top to bottom in sequence, and the liquid and the hot flue gas undergo countercurrent heat exchange to produce a steam-water mixture, and then enter the steam collecting box from the water inlet pipe, the cavity, and the water outlet pipe from bottom to top in sequence to achieve energy exchange. The utility model places the waste heat boiler in a vertical flue, thereby reducing the footprint of the waste heat boiler;

[0017] (2) The baffle of the utility model strengthens the structural strength of the cylinder and the smoke pipe, reduces the deflection of the smoke pipe, changes the flow direction of the liquid, and plays a role in reducing the impact of the liquid on the smoke pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the structure of a vertical steam generator device of the utility model;

[0020] Figure 2 This is a cross-sectional view of a vertical steam generator device of the utility model;

[0021] Figure 3 This is a schematic diagram of the cylinder support of the utility model;

[0022] Figure 4 It is a schematic diagram of a manhole door of the utility model.

[0023] Explanation of the accompanying reference numerals: 1. Flue gas inlet pipe; 2. Steam collecting box; 3. Steam collecting pipe; 4. Upper tube plate; 5. Cylinder; 6. Smoke pipe; 7. Baffle; 8. Lower tube plate; 9. Drain pipe; 10. Flue gas outlet pipe; 11. Water inlet pipe; 12. Cylinder support; 13. Manhole door; 14. Masonry casting material; 15. Smoke pipe protection sleeve. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0025] like Figure 1-4 As shown, a vertical steam generator device comprises a flue gas inlet pipe 1, an upper tube sheet 4, a cylinder 5, a smoke pipe 6, a lower tube sheet 8 and a flue gas outlet pipe 10, wherein the cylinder 5 and the smoke pipe 6 are arranged vertically, the top and bottom ends of the cylinder 5 are connected to the upper tube sheet 4 and the lower tube sheet 8 respectively, the cylinder 5 and the upper tube sheet 4 and the lower tube sheet 8 form a sealed cavity, the cavity is located at the periphery of the smoke pipe 6, and the cavity contains liquid;

[0026] Specifically, the smoke inlet pipe 1, the upper tube plate 4, the cylinder 5, the smoke pipe 6, the lower tube plate 8 and the smoke outlet pipe 10 are connected together by welding.

[0027] The smoke pipe 6 is connected to the inside of the cylinder 5, one end of the smoke pipe 6 is connected to the smoke inlet pipe 1 through the through hole of the upper tube plate 4, and the other end of the smoke pipe 6 is connected to the smoke outlet pipe 10 through the through hole of the lower tube plate 8;

[0028] Hot flue gas enters from the flue gas inlet pipe 1 , passes through the through hole of the upper tube plate 4 , the flue gas pipe 6 , and the through hole of the lower tube plate 8 , and then leaves from the flue gas outlet pipe 10 .

[0029] The bottom of the cylinder 5 is connected to a water inlet pipe 11, and the water inlet pipe 11 is connected to the cavity. The upper tube plate 4 is connected to a steam collecting pipe 3, one end of the steam collecting pipe 3 is connected to the cavity, and the other end of the steam collecting pipe 3 is connected to a steam collecting tank 2. After the liquid enters from the water inlet pipe 11, heat exchange is performed to become a steam-water mixture, and the liquid passes through the cavity and the steam collecting pipe 3 in sequence, and finally enters the steam collecting tank 2.

[0030] Specifically, the flue gas of the device can be replaced by coal gas, and the working principle is: the hot flue gas enters from the flue gas inlet pipe 1 from top to bottom, passes through the through holes of the upper tube plate 4, the smoke pipe 6, and the through holes of the lower tube plate 8, and then leaves from the flue gas outlet pipe 10; the liquid flows from bottom to top, enters from the water inlet pipe 11 in turn, and then undergoes heat exchange to become a steam-water mixture, passes through the cavity, the steam collecting pipe 3, and finally enters the steam collecting box 2; in this process, the hot flue gas transfers heat to the liquid in the cavity to realize energy exchange, and the liquid absorbs heat to produce a steam-water mixture, and the heated steam-water mixture goes up and enters the steam collecting box 2 through the steam collecting pipe 3.

[0031] The liquid is mixed with deoxygenated water, also called deoxygenated water, which is mainly used as boiler feed water to prevent oxygen corrosion in the boiler.

[0032] The lower tube plate 8 is connected with a drain pipe 9, and one end of the drain pipe 9 is connected with the cavity, and the other end of the drain pipe 9 extends to the outside of the flue gas outlet pipe 10. The waste water in the cavity can be discharged out of the cylinder 5 by opening the switch valve of the drain pipe.

[0033] The inner surface of the flue gas inlet pipe 1 is provided with masonry casting material 14, and a smoke pipe protection sleeve 15 is provided in the flue gas inlet pipe 1, and the smoke pipe protection sleeve 15 is welded to the upper tube plate 4. The smoke pipe protection sleeve 15 can prevent the smoke pipe 6 from being washed by smoke dust in the coal gas.

[0034] Specifically, the masonry casting materials are corundum spinel castables, alumina hollow ball lightweight thermal insulation materials and nano thermal insulation boards from the inside out. The corundum spinel castables are resistant to high temperatures and wear, and the ball lightweight thermal insulation materials and nano thermal insulation boards can be used for flue insulation.

[0035] A manhole door 13 is provided on the wall of the cylinder 5, and a plurality of cylinder supports 12 are connected to the outer wall of the cylinder 5, and the cylinder supports 12 are evenly distributed around the circumference. The manhole door is used for later maintenance of the pipeline. The entire device can be fixed to the wall through the cylinder supports to increase the overall stability of the device. The cylinder supports 12, the manhole door 13 and the sewage pipe 9 are essential components in the boiler design and are used for support, maintenance and safe use.

[0036] Baffles 7 are horizontally arranged on the walls of the cylinder 5 and the smoke pipe 6 by welding, and the baffles 7 are evenly arranged in the circumferential direction and the vertical direction. The baffles strengthen the structural strength of the cylinder 5 and the smoke pipe 6 and reduce the deflection of the smoke pipe; at the same time, they change the flow direction of water, thereby reducing the impact of water on the smoke pipe, and at the same time slow down the rising speed of the water flow or water vapor mixture, thereby improving the heat exchange effect.

[0037] The use process of the utility model is as follows:

[0038] When in use, hot flue gas and liquid are introduced separately. The hot flue gas enters from the flue gas inlet pipe 1 from top to bottom, passes through the through holes of the upper tube plate 4, the smoke pipe 6, and the through holes of the lower tube plate 8, and then leaves from the flue gas outlet pipe 10; the liquid flows from bottom to top, enters from the water inlet pipe 11 in turn, undergoes heat exchange and becomes a steam-water mixture, passes through the cavity and the steam collecting pipe 3, and finally enters the steam collecting box 2; in this process, the hot flue gas transfers heat to the liquid in the cavity to realize energy exchange, and the liquid absorbs heat to produce a steam-water mixture, and the heated steam-water mixture goes up and enters the steam collecting box 2 through the steam collecting pipe 3. The device places the waste heat boiler in a vertical flue to reduce the floor space of the waste heat boiler.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A vertical steam generator device, characterized in that: The invention comprises a smoke inlet pipe (1), an upper tube plate (4), a cylinder (5), a smoke pipe (6), a lower tube plate (8) and a smoke outlet pipe (10), wherein the cylinder (5) and the smoke pipe (6) are arranged vertically, the top and bottom ends of the cylinder (5) are respectively connected to the upper tube plate (4) and the lower tube plate (8), the cylinder (5) and the upper tube plate (4) and the lower tube plate (8) form a sealed cavity, the cavity is located on the outer periphery of the smoke pipe (6), and the cavity contains liquid; The smoke pipe (6) is connected to the inside of the cylinder (5), one end of the smoke pipe (6) is connected to the smoke inlet pipe (1) through the through hole of the upper tube plate (4), and the other end of the smoke pipe (6) is connected to the smoke outlet pipe (10) through the through hole of the lower tube plate (8); The smoke enters from the smoke inlet pipe (1), passes through the through hole of the upper tube plate (4), the smoke pipe (6), and the through hole of the lower tube plate (8), and then leaves from the smoke outlet pipe (10).

2. A vertical steam generator device according to claim 1, characterized in that: The bottom of the cylinder (5) is connected to a water inlet pipe (11), the water inlet pipe (11) is connected to the cavity, the upper tube plate (4) is connected to a steam collecting pipe (3), one end of the steam collecting pipe (3) is connected to the cavity, and the other end of the steam collecting pipe (3) is connected to a steam collecting tank (2). After the liquid enters from the water inlet pipe (11), heat exchange is carried out to turn it into a steam-water mixture, and the liquid passes through the cavity and the steam collecting pipe (3) in sequence, and finally enters the steam collecting tank (2).

3. A vertical steam generator device according to claim 2, characterized in that: The lower tube plate (8) is connected to a sewage pipe (9), one end of which is connected to the cavity, and the other end of which extends to the outside of the smoke outlet pipe (10).

4. A vertical steam generator device according to claim 1, characterized in that: The inner surface of the flue gas inlet pipe (1) is provided with masonry casting material (14), a smoke pipe protection sleeve (15) is provided inside the flue gas inlet pipe (1), and the smoke pipe protection sleeve (15) is welded to the upper tube plate (4).

5. A vertical steam generator device according to claim 4, characterized in that: A manhole door (13) is provided on the wall of the cylinder (5), and a plurality of cylinder supports (12) are connected to the outer wall of the cylinder (5).

6. A vertical steam generator device according to claim 1, characterized in that: Baffles (7) are horizontally arranged on the walls of the cylinder (5) and the smoke pipe (6), respectively, and the baffles (7) are evenly arranged in the circumferential direction and the vertical direction.

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