Aerospace atmosphere furnace coil cooling device

Abstract

This utility model relates to a coil cooling device for an aerospace gasifier. The device is characterized by a spiral coil wound around the outer side of the gasifier's water-cooled wall, a water supply tank on one side of the water-cooled wall, a water supply pipe fixedly connected to the outlet of the water supply tank, the outlet of the water supply pipe fixedly connected to the inlet of the coil, a buffer groove fixedly connected to the inner wall of the water supply tank, a front return pipe fixedly connected to the outlet of the coil, a liquid inlet of a heat exchanger fixedly connected to the outlet of the heat exchanger fixedly connected to the inlet of a rear return pipe, an elastic buffer member fixedly connected to the upper inner wall of the water supply tank, a buffer cylinder coaxially corresponding to the outlet of the rear return pipe fixedly connected to the elastic buffer member, several through holes evenly distributed at the bottom of the buffer cylinder, and multiple longitudinally distributed cooling fans used in conjunction with a water curtain overflow assembly fixedly connected to the inner wall of the water supply tank.

Description

Technical Field

[0001] This utility model relates to the field of cooling device technology, and in particular to a cooling device for aerospace gasification furnace coils. Background Technology

[0002] Currently, the cooling water system for the coils of aerospace gasifiers generally adopts a steam drum solution: that is, cooling water is pressurized and pumped into the water-cooled wall coils of the gasifier through a medium-pressure boiler circulating water pump to maintain a large flow of forced water circulation in the water-cooled wall coils.

[0003] However, as the operating conditions of gasifiers become increasingly complex and demanding, higher requirements are placed on the cooling system. These include: increased heat load under high-load continuous operation, leading to increased heat generation from the gasification medium within the coils, thus requiring a higher heat transfer capacity from the coil cooling system; insufficient cooling effect, as the cooling capacity under existing conventional steam drum processes is gradually proving inadequate, resulting in higher coil surface temperatures and potential for localized overheating or material performance degradation; and low energy efficiency, as the limited heat exchange efficiency of existing cooling water leads to a large circulating water volume, high boiler circulating water pump operating load, increased power consumption, and higher system operating costs. Furthermore, under existing steam drum processes, the cooling effect of the circulating water during reuse is limited, further affecting the boiler's cooling performance. To address these issues, this application proposes a cooling device for aerospace gasifier coils. Utility Model Content

[0004] To address the above issues and overcome the shortcomings of existing technologies, this utility model provides a cooling device for aerospace gasifier coils. The solution includes a water-cooled wall for the gasifier, characterized in that a spiral coil is wound around the outer side of the water-cooled wall; a water supply tank is arranged on one side of the water-cooled wall, containing subcooled water; the outlet of the water supply tank is fixedly connected to the inlet of a water supply pipe fitting; the outlet of the water supply pipe fitting is fixedly connected to the inlet of the coil; a buffer groove is fixedly connected to the inner wall of the water supply tank; and the outlet of the coil is fixedly connected to a front return pipe. At the inlet end, the outlet end of the front reflux pipe is fixedly connected to the liquid inlet end of the heat exchanger, and the liquid outlet end of the heat exchanger is fixedly connected to the inlet end of the rear reflux pipe. The outlet end of the rear reflux pipe extends into the water supply tank and corresponds to the buffer tank. An elastic buffer element is fixedly connected to the upper inner wall of the water supply tank. The elastic buffer element is fixedly connected to a buffer cylinder coaxially corresponding to the outlet end of the rear reflux pipe. Several through holes are evenly distributed at the bottom of the buffer cylinder. A water curtain overflow assembly is arranged on the right side wall of the buffer tank. Multiple air coolers are fixedly connected to the inner wall of the water supply tank, evenly distributed longitudinally and used in conjunction with the water curtain overflow assembly.

[0005] Preferably, the water supply pipe includes an inlet end of a front water supply pipe that is fixedly connected to the outlet end of the water supply tank, an inlet end of a cooling water pump that is fixedly connected to the outlet end of the front water supply pipe, an inlet end of a rear water supply pipe that is fixedly connected to the outlet end of the cooling water pump, an outlet end of the rear water supply pipe that is fixedly connected to the inlet end of the coil, and a water supply valve installed on the front water supply pipe.

[0006] Preferably, the elastic buffer includes a sleeve fixedly connected to the upper side wall of the water supply tank. A buffer rod is coaxially and slidably fitted inside the sleeve. Two guide blocks symmetrically arranged about its axis are fixedly connected to the outer edge of the buffer rod. Two vertical grooves corresponding to and slidingly engaging with the guide blocks are opened on the outer edge of the sleeve. The lower end of a buffer spring is coaxially and fixedly connected to the upper end of the buffer rod. The upper end of the buffer spring is fixedly connected to the upper bottom surface of the sleeve. The lower end of the buffer rod is fixedly connected to the outer edge of the buffer cylinder.

[0007] Preferably, the upper end of the water supply tank is fixedly connected to a water inlet pipe.

[0008] Preferably, the outer surface of the coil is coated with a silicon carbide protective layer.

[0009] Preferably, the water curtain overflow assembly includes an overflow port opened on the right side wall of the buffer tank, and the overflow port is fixedly connected to an overflow plate arranged at an angle at its upper end.

[0010] The beneficial effects of this utility model are:

[0011] 1. In use, this application sets up a water supply tank and stores subcooled water as a cooling water source. Since the temperature of subcooled water is lower than that of conventional cooling water, its heat absorption capacity is stronger. Replacing traditional boiler circulating water with subcooled water can significantly improve the heat exchange capacity of the coil and ensure that the gasifier maintains a stable thermal balance state when operating at high load. Furthermore, using subcooled water can reduce the demand for circulating water, thereby reducing the workload of the pump.

[0012] 2. In the circulation process of the subcooled water, the water is first cooled by heat exchanger, and then the water curtain overflow component on the buffer tank overflows to form a water curtain. The water curtain is further cooled by the air cooler, which in turn further cools the subcooled water that has been cooled by the heat exchanger. This ensures that the temperature of the subcooled water is suitable for cooling the gasifier.

[0013] 3. The provided elastic buffer component, in conjunction with the buffer cylinder, can buffer the subcooled water discharged from the back return pipe, preventing the subcooled water from causing excessive impact on the buffer tank and affecting its service life. Attached Figure Description

[0014] Figure 1 This is a first-person perspective three-dimensional sectional view of the present invention.

[0015] Figure 2 This is an enlarged view of region A in the first-view perspective stereoscopic sectional view of this utility model.

[0016] Figure 3 This is a partial stereoscopic view of the present invention from a second perspective.

[0017] Figure 4 This is a third-person perspective stereoscopic view of the present invention.

[0018] Figure Labels

[0019] 1. Gasifier water-cooled wall, 2. Coil, 3. Water supply tank, 4. Buffer tank, 5. Front return pipe, 6. Heat exchanger, 7. Rear return pipe, 8. Elastic buffer, 9. Buffer cylinder, 10. Through hole, 11. Water curtain overflow assembly, 12. Air cooler, 13. Front water supply pipe, 14. Cooling water pump, 15. Rear water supply pipe, 16. Water supply valve, 17. Sleeve, 18. Buffer rod, 19. Guide block, 20. Vertical groove, 21. Buffer spring, 22. Water inlet pipe, 23. Overflow port, 24. Overflow plate. Detailed Implementation

[0020] The following is in conjunction with the appendix Figure 1-4 The specific embodiments of this utility model will be described in further detail.

[0021] In the first embodiment, the technical solution is as follows: During use, a water supply tank 3 is set up to store subcooled water as a cooling water source. Since the temperature of the subcooled water is lower than that of conventional cooling water, its heat absorption capacity is stronger. Replacing the traditional boiler circulating water with subcooled water can significantly improve the heat exchange capacity of the coil 2, ensuring that the gasifier maintains a stable thermal balance during high-load operation. Furthermore, using subcooled water can reduce the demand for circulating water, thereby reducing the workload of the pump. In the circulation process of the subcooled water, it first undergoes heat exchange and cooling through the heat exchanger 6, and then overflows through the water curtain overflow component 11 on the buffer tank 4 to form a water curtain. This, combined with the air cooler 12, further cools the subcooled water that has been cooled by the heat exchanger 6, thus ensuring that the temperature of the subcooled water is suitable for cooling the gasifier. The provided elastic buffer 8, together with the buffer cylinder 9, can buffer the subcooled water discharged from the back return pipe 7, avoiding excessive impact of the subcooled water on the buffer tank 4 and affecting the service life of the buffer tank 4.

[0022] In Example 2, based on Example 1, during use, the water supply tank 3 contains a suitable amount of subcooled water, and subcooled water can be replenished to the water supply tank 3 through the inlet pipe 22. The water supply valve 16 on the front water supply pipe 13 is opened and the cooling water pump 14 is started. Under the action of the cooling water pump 14, the subcooled water in the water supply tank 3 enters the coil 2 sequentially through the front water supply pipe 13 and the rear water supply pipe 15. The coil 2 is spirally arranged on the outside of the water-cooled wall 1 of the gasifier, thereby enabling heat exchange and cooling of the gasifier. Afterwards, cooling water enters the front return pipe 5 from the coil 2, and then enters the heat exchanger 6 from the front return pipe 5 for heat exchange and cooling, so that the subcooled water can be quickly cooled to meet the requirements for circulation. After being cooled by the heat exchanger 6, the subcooled water flows into the buffer tank 4 from the rear return pipe 7. After the subcooled water accumulates to a certain depth in the buffer tank 4, it will overflow downward from the overflow plate 24 at the overflow port 23. During the process of the subcooled water overflowing downward from the overflow plate 24, it will form a water curtain. The water curtain makes the subcooled water appear to be in a relatively thin state, so that the air cooler 12 can further cool it, ensuring that it can continue to circulate after mixing with the subcooled water in the water supply tank 3 after overflowing downward.

[0023] In Example 3, based on Example 2, an elastic connector is further arranged in the water supply tank 3. The elastic connector is fixedly connected to a buffer cylinder 9 corresponding to the outlet end of the rear return pipe 7. Thus, the cooling water flowing out of the rear return pipe 7 will first enter the buffer cylinder 9 before entering the buffer tank 4, and enter the buffer tank 4 through the through hole 10 at the bottom of the buffer cylinder 9. Under the action of the buffer cylinder 9, the supercooled water can be effectively buffered, greatly reducing its flow rate into the buffer tank 4, avoiding excessive impact on the buffer tank 4, thus ensuring the service life of the buffer tank 4. At the same time, it can also ensure that the cooling water in the buffer tank 4 is in a relatively calm state, ensuring the water curtain posture formed by the overflow. The elastic buffer 8 is composed of a sleeve 17, a buffer rod 18, and a buffer spring 21. The sleeve 17 and the buffer rod 18 are vertically slidably connected through a vertical groove 20 and a guide block 19. This allows the buffer rod 18 to move vertically relative to the sleeve 17 when cooling water impacts the buffer cylinder 9, causing the buffer spring 21 to deform. This buffers the impact of cooling water on the buffer cylinder 9, ensuring its service life. The outer surface of the coil 2 is coated with a silicon carbide protective layer, which improves the coil 2's resistance to high temperatures and extends its service life.

Claims

1. A cooling device for aerospace gasifier coils, comprising a gasifier water-cooled wall (1), characterized in that, A spiral coil (2) is wound around the outside of the gasifier water-cooled wall (1). A water supply tank (3) is arranged on one side of the gasifier water-cooled wall (1). The water supply tank (3) stores subcooled water. The outlet end of the water supply tank (3) is fixedly connected to the inlet end of a water supply pipe fitting. The outlet end of the water supply pipe fitting is fixedly connected to the inlet end of the coil (2). A buffer groove (4) is fixedly connected to the inner wall of the water supply tank (3). The outlet end of the coil (2) is fixedly connected to the inlet end of a front return pipe (5). The outlet end of the front return pipe (5) is fixedly connected to the liquid inlet end of a heat exchanger (6). The liquid outlet of the heat exchanger (6) is... The inlet end of the water supply tank (3) is fixedly connected to the inlet end of the back return pipe (7). The outlet end of the back return pipe (7) extends into the water supply tank (3) and corresponds to the buffer tank (4). An elastic buffer (8) is fixedly connected to the upper inner wall of the water supply tank (3). A buffer cylinder (9) corresponding to the outlet end of the back return pipe (7) is fixedly connected to the elastic buffer (8). Several through holes (10) are evenly distributed at the bottom of the buffer cylinder (9). A water curtain overflow assembly (11) is arranged on the right side wall of the buffer tank (4). Multiple air coolers (12) are evenly distributed longitudinally and used in conjunction with the water curtain overflow assembly (11) and fixedly connected to the inner wall of the water supply tank (3).

2. The aerospace gasification furnace coil cooling device according to claim 1, characterized in that, The water supply pipe fittings include an inlet end of a front water supply pipe (13) that is fixedly connected to the outlet end of the water supply tank (3), an outlet end of the front water supply pipe (13) that is fixedly connected to the inlet end of a cooling water pump (14), an outlet end of the cooling water pump (14) that is fixedly connected to the inlet end of a rear water supply pipe (15), an outlet end of the rear water supply pipe (15) that is fixedly connected to the inlet end of a coil (2), and a water supply valve (16) installed on the front water supply pipe (13).

3. The aerospace gasification furnace coil cooling device according to claim 1, characterized in that, The elastic buffer (8) includes a sleeve (17) fixedly connected to the upper side wall of the water supply tank (3). A buffer rod (18) is coaxially slidably fitted inside the sleeve (17). Two guide blocks (19) are fixedly connected to the outer edge of the buffer rod (18) and are symmetrically arranged about its axis. Two vertical grooves (20) are opened on the outer edge of the sleeve (17) and are slidably fitted to the guide blocks (19). The lower end of a buffer spring (21) is coaxially fixedly connected to the upper end of the buffer rod (18). The upper end of the buffer spring (21) is fixedly connected to the upper bottom surface of the sleeve (17). The lower end of the buffer rod (18) is fixedly connected to the outer edge of the buffer cylinder (9).

4. The aerospace gasification furnace coil cooling device according to claim 1, characterized in that, The water supply tank (3) is fixedly connected to the water inlet pipe (22) at the top.

5. The aerospace gasification furnace coil cooling device according to claim 1, characterized in that, The outer surface of the coil (2) is coated with a silicon carbide protective layer.

6. The aerospace gasification furnace coil cooling device according to claim 1, characterized in that, The water curtain overflow assembly (11) includes an overflow port (23) opened on the right side wall of the buffer tank (4), and the overflow port (23) is fixedly connected to an overflow plate (24) with its upper end arranged obliquely.

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