An air-cooled island spray cooling device based on waste heat power generation

CN224635626UActive Publication Date: 2026-08-14SIAN NEW ENERGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-18
Publication Date
2026-08-14

AI Technical Summary

Technical Problem

[0002]在余热发电系统中,空冷岛承担汽轮机排汽冷凝重任,其冷却效果直接影响系统真空度与发电效率,但现有冷却方案存在明显缺陷:传统固定喷淋装置覆盖范围有限,易出现局部冷却不均,导致热积聚;喷淋水含有的杂质易堵塞喷头,需频繁拆解维护,增加运维成本;且多数装置无法灵活移动,难以根据空冷岛不同区域热负荷变化调整冷却位置,高温工况下冷却效率大幅降低,难以满足系统稳定运行需求,给人们的使用过程带来了一定的不利影响,为了解决现有技术的不足,我们提出一种基于余热发电的空冷岛喷淋冷却装置

Benefits of technology

该基于余热发电的空冷岛喷淋冷却装置,通过设置的伺服电机驱动螺纹杆转动,配合导向杆对移动板的限位作用,使移动板沿螺纹杆轴向移动,进而通过活动杆带动分流管及相连水管绕固定杆外的活动环转动,实现喷淋角度灵活调节,可精准适配空冷岛不同区域的冷却需求,同时雾状喷头进水端设可拆卸过滤芯,能有效拦截喷淋水中杂质,避免喷头堵塞,减少维护成本与频次,且雾状喷淋形态大幅增大水与空气接触面积,显著提升换热效率,保障余热发电系统冷凝效率稳定,间接提升发电效益。

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Abstract

This utility model discloses an air-cooled island spray cooling device based on waste heat power generation, belonging to the field of air-cooled island spray cooling technology. It includes a base frame with two symmetrically fixed vertical plates at the upper end. A fixed rod is fixedly connected between the two vertical plates, and multiple movable rings are sleeved on the outer surface of the fixed rod. A water pipe is fixedly connected to one side of each movable ring, and multiple mist nozzles are detachably connected to the surface of the water pipe. The other end of each water pipe is connected to a branch pipe, and a water inlet pipe is detachably connected to one side of the branch pipe. A first fixed plate is fixedly connected to the lower part of each water pipe, and multiple fans are detachably embedded within the first fixed plate. This utility model's air-cooled island spray cooling device based on waste heat power generation allows for adjustable spray angles to adapt to different cooling needs. It features a filter element to prevent nozzle clogging, and the mist spray and co-directional fans improve heat exchange efficiency. It also cleans fins, reduces vibration and noise, uses quick-connect fittings for easy maintenance, and rollers increase flexibility, ensuring system stability and power generation efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of air-cooled island spray cooling technology, and in particular to an air-cooled island spray cooling device based on waste heat power generation. Background Technology

[0002] In waste heat power generation systems, air-cooled islands bear the heavy responsibility of condensing exhaust steam from turbines. Their cooling effect directly affects the system's vacuum level and power generation efficiency. However, existing cooling solutions have significant drawbacks: traditional fixed spray devices have limited coverage, easily leading to uneven cooling in certain areas and heat accumulation; impurities in the spray water easily clog the nozzles, requiring frequent disassembly and maintenance, increasing operation and maintenance costs; moreover, most devices cannot be moved flexibly, making it difficult to adjust the cooling position according to changes in heat load in different areas of the air-cooled island. Under high-temperature conditions, the cooling efficiency is significantly reduced, making it difficult to meet the requirements for stable system operation and causing certain adverse effects on users. To address the shortcomings of existing technologies, we propose an air-cooled island spray cooling device based on waste heat power generation. Utility Model Content

[0003] The main objective of this invention is to provide an air-cooled island spray cooling device based on waste heat power generation, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A waste heat power generation-based air-cooled island spray cooling device includes a base frame. Two vertical plates are symmetrically fixed to the upper end of the base frame. A fixing rod is fixedly connected between the two vertical plates, and multiple movable rings are sleeved on the outer surface of the fixing rod. A water pipe is fixedly connected to one side of each movable ring, and multiple mist nozzles are detachably connected to the surface of the water pipe. The other end of each water pipe is connected to a branch pipe, and a water inlet pipe is detachably connected to one side of the branch pipe. A first fixing plate is fixedly connected to the lower part of the multiple water pipes, and multiple fans are detachably embedded within the first fixing plate. Two... A second fixed plate, one of which has a servo motor detachably connected to its upper end, and the output shaft of the servo motor is detachably connected to a threaded rod. Two guide rods are symmetrically fixed between the two second fixed plates. A movable plate is threadedly connected to the outer surface of the threaded rod, and two fixed seats are symmetrically fixed on both sides of the movable plate. Two connecting seats are symmetrically fixed on one side of the diverter pipe, and a movable rod is movably connected between the fixed seats and the connecting seats. Connecting shafts are detachably inserted at the connection points between the movable rod and the fixed seats and the connecting seats. Multiple rollers are installed at the lower end of the bottom frame.

[0005] Preferably, the mist nozzles are evenly spaced along the length of the water pipe, and the water inlet end of the mist nozzle is provided with a detachable filter element, which is used to intercept impurities in the spray water.

[0006] Preferably, the fan is an axial flow fan, and the air outlet of the fan is in the same direction as the spray direction of the mist nozzle. The first fixing plate is provided with mounting holes adapted to the fan, and the inner wall of the mounting holes is provided with elastic sealing gaskets. The elastic sealing gaskets are interference-fitted with the fan housing to reduce the transmission of vibration when the fan is working.

[0007] Preferably, one end of the threaded rod is rotatably connected to the second fixed plate via a deep groove ball bearing. The outer ring of the deep groove ball bearing is interference-fitted with the second fixed plate, and the inner ring is interference-fitted with the threaded rod. The movable plate has a sliding hole adapted to the guide rod, and a nylon sleeve is fixedly embedded in the sliding hole. The inner hole of the nylon sleeve is slidably fitted with the outer surface of the guide rod.

[0008] Preferably, the connection between the diverter pipe and the water pipe is provided with a quick-connect pipe joint, one end of which is connected to the diverter pipe and the other end is connected to the water pipe. The quick-connect pipe joint has a sealing ring on its inner wall to enhance the sealing of the connection.

[0009] Compared with the prior art, the present invention has the following beneficial effects: This waste heat power generation-based air-cooled island spray cooling device uses a servo motor to drive a threaded rod to rotate. A guide rod limits the movement of a moving plate, causing the plate to move axially along the threaded rod. This, in turn, drives a movable rod to rotate the distribution pipes and connected water pipes around a movable ring outside the fixed rod, allowing for flexible adjustment of the spray angle. This precisely adapts to the cooling needs of different areas of the air-cooled island. Simultaneously, the water inlet of the mist nozzles is equipped with a removable filter element, effectively intercepting impurities in the spray water, preventing nozzle clogging, reducing maintenance costs and frequency. Furthermore, the mist spray pattern significantly increases the contact area between water and air, significantly improving heat exchange efficiency and ensuring stable condensation efficiency of the waste heat power generation system, indirectly improving power generation benefits.

[0010] This waste heat power generation-based air-cooled island spray cooling device features an axial flow fan outlet aligned with the spray direction of the mist nozzles. This not only accelerates the diffusion of mist water to enhance heat exchange in the air-cooled island, solving the problems of slow mist diffusion and low efficiency in traditional spray systems, but also utilizes the synergistic effect of airflow and water mist to flush away accumulated dust and debris inside the air-cooled tube bundle fins. This prevents fin blockage and heat exchange efficiency degradation, maintains long-term heat exchange performance of the fins, and extends their service life. The elastic sealing gasket in the mounting hole of the first fixing plate weakens the transmission of fan vibration, reducing operating noise and component wear. Quick-connect pipe joints facilitate maintenance and replacement, while the bottom frame rollers enhance mobility and allow for rapid adjustment of the working position. This comprehensive design adapts to the cooling needs of the air-cooled island, ensuring stable system operation. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall structure of this utility model from another angle; Figure 3 This is a schematic diagram of the water pipe angle adjustment structure of this utility model; Figure 4 This is a partial structural schematic diagram of the present invention.

[0012] In the diagram: 1. Base frame; 2. Vertical plate; 3. Fixed rod; 4. Movable ring; 5. Water pipe; 6. Mist nozzle; 7. Diverter pipe; 8. Inlet pipe; 9. First fixed plate; 10. Fan; 11. Second fixed plate; 12. Servo motor; 13. Threaded rod; 14. Guide rod; 15. Moving plate; 16. Fixed seat; 17. Connecting seat; 18. Movable rod; 19. Connecting shaft; 20. Roller. Detailed Implementation

[0013] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0014] Example 1, as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, an air-cooled island spray cooling device based on waste heat power generation includes a base frame 1. Two vertical plates 2 are symmetrically fixed to the upper end of the base frame 1. A fixing rod 3 is fixedly connected between the two vertical plates 2. Multiple movable rings 4 are sleeved on the outer surface of the fixing rod 3. A water pipe 5 is fixedly connected to one side of the movable ring 4. Multiple mist nozzles 6 are detachably connected to the surface of the water pipe 5 and are evenly distributed along its length. The water inlet end of the mist nozzle 6 is provided with a detachable filter element for intercepting impurities in the spray water. The other end of the multiple water pipes 5 is connected to a diversion pipe 7 through a quick-connect pipe joint with a sealing ring on the inner wall to enhance the sealing performance. A water inlet pipe 8 is detachably connected to one side of the diversion pipe 7. A first fixing plate 9 is fixedly connected to the lower part of the multiple water pipes 5. Multiple axial flow fans 10 are detachably embedded in the first fixing plate 9. The first fixing plate 9 has mounting holes adapted to the fans 10. The inner wall of the mounting holes is provided with an elastic sealing gasket that is interference-fitted with the outer shell of the fans 10 to reduce vibration transmission. The two vertical plates 2 are fixedly connected between the base frame 1 and the water pipe 5. The fixed connection has two second fixed plates 11. One of the second fixed plates 11 is detachably connected to a servo motor 12. The output shaft of the servo motor 12 is detachably connected to a threaded rod 13. One end of the threaded rod 13 is rotatably connected to the other second fixed plate 11 through a deep groove ball bearing. The outer ring of the deep groove ball bearing is interference-fitted with the second fixed plate 11, and the inner ring is interference-fitted with the threaded rod 13. Two guide rods 14 are symmetrically fixed between the two second fixed plates 11. A movable plate 15 is threadedly connected to the outer surface of the threaded rod 13. The movable plate 15 has a sliding hole adapted to the guide rod 14. A nylon sliding sleeve with an inner hole that slides with the outer surface of the guide rod 14 is fixedly embedded in the sliding hole. Two fixed seats 16 are symmetrically fixed on both sides of the movable plate 15. Two connecting seats 17 are symmetrically fixed on one side of the diverter pipe 7. A movable rod 18 is movably connected between the fixed seat 16 and the connecting seat 17 through a detachable connecting shaft 19. Multiple rollers 20 are installed at the lower end of the bottom frame 1.

[0015] It should be noted that this utility model is a spray cooling device for an air-cooled island based on waste heat power generation. In use, the device is moved to the designated cooling position on the waste heat power generation air-cooled island using the rollers 20 at the lower end of the base frame 1. Then, the inlet pipe 8 is connected to the external water source pipeline. After opening the external water source, cooling water flows into the distribution pipe 7 through the inlet pipe 8 and is stably distributed to each water pipe 5 through quick-connect pipe joints. When the water flows through the mist nozzle 6, impurities in the water are intercepted by the filter element at its inlet end and then atomized, spraying onto the area to be cooled on the air-cooled island. Simultaneously, the fan 10 on the first fixed plate 9 is started. The fan 10 and the outlet of the mist nozzle 6, which face the same direction, accelerate the diffusion range and flow rate of the atomized water to improve cooling efficiency. When the air-cooled island needs to be cooled... When adjusting the spray angle to meet the cooling needs of the same area, the servo motor 12 on the second fixed plate 11 is activated. The servo motor 12 drives the threaded rod 13 to rotate around the deep groove ball bearing. The threaded rod 13 drives the moving plate 15 to slide up and down along the guide rod 14. The moving plate 15 drives the split pipe 7 and the connected water pipe 5 to rotate around the movable ring 4 on the fixed rod 3 through the fixed seats 16 on both sides, the connecting shaft 19 and the connecting seat 17 on the split pipe 7, thereby adjusting the spray angle between the water pipe 5 and the mist nozzle 6 to meet the cooling needs under different working conditions. During the entire use, the elastic sealing gasket effectively reduces the vibration transmission when the fan 10 is working, the sealing ring of the quick-connect pipe joint ensures that there is no leakage at the water connection, and the deep groove ball bearing ensures the stable rotation of the threaded rod 13.

[0016] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An air-cooled island spray cooling device based on waste heat power generation, comprising a base frame (1), characterized in that: Two upright plates (2) are symmetrically fixed at the upper end of the bottom frame (1). A fixed rod (3) is fixedly connected between the two upright plates (2). Multiple movable rings (4) are sleeved on the outer surface of the fixed rod (3). A water pipe (5) is fixedly connected to one side of the movable ring (4). Multiple mist nozzles (6) are detachably connected to the surface of the water pipe (5). The other end of the multiple water pipes (5) is connected to a diversion pipe (7). A water inlet pipe (8) is detachably connected to one side of the diversion pipe (7). A first fixed plate (9) is fixedly connected to the lower part of the multiple water pipes (5). Multiple fans (10) are detachably embedded in the first fixed plate (9). Two second fixed plates (11) are fixedly connected between the two upright plates (2). The upper end of one of the second fixed plates (11) is... A servo motor (12) is detachably connected, and the output shaft of the servo motor (12) is detachably connected to a threaded rod (13). Two guide rods (14) are symmetrically fixed between the two second fixed plates (11). A movable plate (15) is threadedly connected to the outer surface of the threaded rod (13), and two fixed seats (16) are symmetrically fixed on both sides of the movable plate (15). Two connecting seats (17) are symmetrically fixed on one side of the diverter pipe (7), and a movable rod (18) is movably connected between the fixed seat (16) and the connecting seat (17). A connecting shaft (19) is detachably inserted at the connection points between the two ends of the movable rod (18) and the fixed seat (16) and the connecting seat (17). Multiple rollers (20) are installed at the lower end of the bottom frame (1).

2. The air-cooled island spray cooling device based on waste heat power generation according to claim 1, characterized in that: The mist nozzles (6) are evenly distributed along the length of the water pipe (5). The water inlet end of the mist nozzles (6) is provided with a detachable filter element, which is used to intercept impurities in the spray water.

3. The air-cooled island spray cooling device based on waste heat power generation according to claim 1, characterized in that: The fan (10) is an axial flow fan, and the air outlet of the fan (10) is in the same direction as the spray direction of the mist nozzle (6). The first fixing plate (9) is provided with mounting holes adapted to the fan (10). The inner wall of the mounting hole is provided with an elastic sealing gasket. The elastic sealing gasket is interference-fitted with the outer shell of the fan (10) to reduce the vibration transmission when the fan (10) is working.

4. The air-cooled island spray cooling device based on waste heat power generation according to claim 1, characterized in that: One end of the threaded rod (13) is rotatably connected to the second fixed plate (11) through a deep groove ball bearing. The outer ring of the deep groove ball bearing is interference-fitted with the second fixed plate (11), and the inner ring is interference-fitted with the threaded rod (13). The movable plate (15) is provided with a sliding hole adapted to the guide rod (14). A nylon sleeve is fixedly embedded in the sliding hole, and the inner hole of the nylon sleeve is slidingly fitted with the outer surface of the guide rod (14).

5. The air-cooled island spray cooling device based on waste heat power generation according to claim 1, characterized in that: The connection between the diversion pipe (7) and the water pipe (5) is provided with a quick-connect pipe joint. One end of the quick-connect pipe joint is connected to the diversion pipe (7), and the other end is connected to the water pipe (5). The inner wall of the quick-connect pipe joint is provided with a sealing ring to enhance the sealing of the connection.