Steam recovery cooling device and recovery cooling method thereof

Abstract

The invention discloses a steam recovery cooling device and a recovery cooling method thereof, and belongs to the technical field of cooling tower production. The recycling and cooling device comprises a first-stage cooling system, a second-stage cooling system and a tassel system, and the first-stage cooling system and the second-stage cooling system are of a side-by-side and parallel frame-shaped structure and are both fixedly connected to an outlet of an air duct on the upper portion of a cooling tower; the side-by-side frame-shaped structures and the parallel frame-shaped structures are tassel system frames; the tassel system comprises tassels, the tassels are in a sector ring shape after being unfolded and are fixedly connected to the tassel system frame through the fixed ends of the tassels, the length of the fixed ends is matched with the length of the tassel system frame, the outer ring of the tassel sector ring is in a free falling state, and the tassels fluctuate in a sine-like function by means of high-pressure air flow blown out of the air duct. And water vapor and steam at the outlet of the air duct are fully contacted, absorbed and cooled. The technical problems that in the prior art, a cooling tower is cooled through a draught fan, the moisture loss amount is large, and the visibility of the surrounding environment is reduced are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of cooling tower production, and more specifically, relates to a steam recovery cooling device and a recovery cooling method thereof. Background Art

[0002] At present, most cooling towers use fans to allow the gas in the tower to convect with the atmosphere, and the gas and hot water exchange heat to cool the hot water. At the outlet of the cooling tower wind tube, a large amount of steam and water vapor are discharged into the atmosphere, resulting in a large amount of water loss. In addition, when the temperature is low, a large amount of steam is generated at the outlet of the wind tube. The steam floats with the wind, reducing the visibility of the surrounding environment and affecting the surrounding traffic and daily production.

[0003] Chinese Patent Publication Number: CN112951778A, Publication Date: June 11, 2021, discloses a water-cooled plate with a fan-shaped flow channel structure and a preparation process, the water-cooled plate includes a shell, a water inlet and a water outlet arranged on the shell, and a fan-shaped flow channel is integrally formed in the shell; and it is prepared using a coated sand process. The water-cooled plate with a fan-shaped water channel structure provided by the invention designs the flow channel into a fan-shaped structure so that the liquid is fully dispersed in the flow channel, and the convective heat exchange area is increased to improve the requirements for solving large power consumption and heat dissipation. However, the invention is mainly aimed at cooling facilities for power electronic thyristors. Although the cooling efficiency is high, it is mainly used for cooling solid facilities and is not suitable for cooling outdoor and gas media. In addition, the equipment is made of thermally conductive copper, which is expensive. Summary of the invention

[0004] 1. Problems to be solved

[0005] In view of the problem in the prior art that the cooling tower is cooled by a fan, the water loss is large and the visibility of the surrounding environment is reduced, the present invention provides a steam recovery cooling device and a recovery cooling method thereof. Through a two-stage cooling system and a tassel system, the kinetic energy generated by the fan is utilized to recover the steam and water vapor at the outlet of the wind tube through tassel cooling, so as to achieve the purpose of improving the cooling effect and minimizing the amount of water escaping.

[0006] 2. Technical solution

[0007] To solve the above problems, the present invention adopts the following technical solutions:

[0008] A steam recovery and cooling device includes a primary cooling system, a secondary cooling system, and a tassel system. The primary cooling system and the secondary cooling system are arranged side by side and in a juxtaposed frame structure, and are both fixedly connected to the outlet of the upper air duct of the cooling tower; the side-by-side and juxtaposed frame structures are both tassel system frames; the tassel system includes tassels. After the tassels are unfolded, they are in a fan-shaped ring shape. The inner ring edge of the tassel fan ring is its fixed end, and is fixedly connected to the tassel system frame through the fixed end. The length of the fixed end is adapted to the length of the tassel system frame. The outer ring of the tassel fan ring is in a freely hanging state. Using the high-pressure air flow blown out by the air duct, the tassels make fluctuations similar to a sine function, and fully contact the water vapor and steam at the air duct outlet, absorb and cool the water vapor and steam. The cooled water adheres to the tassels and flows along the tassel system frame into the collection pipe, and finally enters the cold water pool.

[0009] A further technical solution further includes a capillary water cooling system; the tassel system further includes a fixed rod and a movable rod. The fixed rod is fixedly connected to the tassel system frame, the movable rod is rotatably connected to the fixed rod through a fixed pin, and the movable part of the movable rod is connected to the tassel; the capillary water cooling system includes a water supply main pipe, a water supply branch pipe, a water distribution drum, capillary branch pipes, and a return water main pipe; the water supply main pipe is laid along the tassel system frame and externally connected to parallel water supply branch pipes. The water supply branch pipes are fixedly connected to the fixed rod. The bottom end of the water supply branch pipe is connected and communicated with the water distribution drum. The water distribution drum externally connects multiple capillary branch pipes downward. The bottom ends of the capillary branch pipes are all connected and communicated with the return water main pipe. The return water main pipe is externally connected to the collection pipe. The upper parts of the capillary branch pipes are connected to the tassels. The capillary branch pipes on the tassels cool and recover the water vapor and steam more quickly, further improving the cooling and recovery efficiency.

[0010] A further technical solution is that the water distribution drum or the part of the water distribution drum facing the movable rod is made of elastic soft material. When the movable rod makes a reciprocating motion similar to a sine function with the tassel, it continuously squeezes the water distribution drum, converting the kinetic energy of the high-speed air flow into the kinetic energy of the movable rod. The reciprocating motion of the movable rod speeds up the flow rate of the cooling water and improves the cooling efficiency of the capillary branch pipes.

[0011] A further technical solution is that single-pass valves are provided at the connection points of the water supply branch pipes, the capillary branch pipes and the water distribution drum to achieve unidirectional flow of the cooling water.

[0012] A recovery and cooling method of a steam recovery and cooling device, under the action of the high-pressure air flow blown out by the air duct, the tassels make fluctuations similar to a sine function, contact the water vapor and steam at the air duct outlet, the capillary branch pipes on the tassels cool the water vapor and steam, the cooled water adheres to the tassels and flows along the tassel system frame into the collection pipe, and finally enters the cold water pool.

[0013] Further recovery cooling method: The movable rod makes a quasi-sine function motion back and forth with the tassel, continuously squeezing the water distribution bulge, converting the kinetic energy of the high-speed air flow into the kinetic energy of the movable rod. The reciprocating motion of the movable rod speeds up the flow rate of the cooling water and improves the cooling efficiency of the capillary branch pipes.

[0014] 3. Beneficial effects

[0015] The steam recovery cooling device of the present invention coordinates through a two-stage cooling system, a tassel system, and a capillary water cooling system, and makes full use of the kinetic energy generated by the high-pressure air flow blown out by the air duct to make the tassel fluctuate in a quasi-sine function, improving the convective cooling surface. At the same time, it drives the movable rod to fluctuate in a quasi-sine function, squeezing the water distribution bulge to speed up the flow rate of the cooling water, improving the cooling efficiency of the capillary branch pipes, and fully cooling and recovering the steam and water vapor at the outlet position of the air duct, with a recovery rate of up to 90%. Description of the drawings

[0016] Figure 1 Structural schematic diagram of the tassel system and the capillary water cooling system for a specific embodiment;

[0017] Figure 2 For Figure 1 Side view;

[0018] Figure 3 Structural schematic diagram of the lifting device of the steam recovery cooling device for a specific embodiment;

[0019] Figure 4 Flat unfolded state diagram of the tassel;

[0020] Figure 5 For Figure 3 Side view;

[0021] Figure 6 Quasi-sine function fluctuation state diagram of the simulated tassel.

[0022] In the figure: 1. Cooling tower; 2. Tassel system; 3. Capillary water cooling system; 7. Air duct; 11. Tassel system frame; 12. Collection pipe; 21. Tassel; 22. Fixed rod; 23. Fixed pin; 24. Movable rod; 31. Total water supply pipe; 32. Water supply branch pipe; 33. One-way valve; 34. Water distribution bulge; 35. Capillary branch pipe; 36. Total return water pipe; 211. Fixed end. 10. Primary cooling system; 20. Secondary cooling system. Specific implementation manners

[0023] The present invention will be further described below in conjunction with specific embodiments and the drawings.

[0024] Embodiment 1

[0025] The steam recovery cooling device of this embodiment, such as Figure 3 ,5 As shown, it includes a primary cooling system 10, a secondary cooling system 20 and a tassel system 2. The primary cooling system 10 and the secondary cooling system 20 are arranged side by side and in a juxtaposed frame structure. Figure 3 、 5 There are 9 rows and 9 columns respectively, and they are all fixedly connected to the outlet of the upper air duct 7 of the cooling tower 1; the side-by-side and juxtaposed frame structures are both tassel system frames 11.

[0026] As Figure 4 shown, the tassel system 2 includes tassels 21. After the tassels 21 are unfolded, they are in a fan-shaped ring shape. The inner ring edge of the fan-shaped ring of the tassels 21 is its fixed end 211, and it is fixedly connected to the tassel system frame 11 through the fixed end 211. The length of the fixed end 211 is adapted to the length of the tassel system frame 11. The outer ring length of the fan-shaped ring of the tassels 21 is much larger than that of the tassel system frame 11. When there is no blowing, it is in a free hanging state under the action of gravity.

[0027] For the steam recovery and cooling device of this embodiment, using the high-pressure air flow blown out by the air duct 7, as Figure 6 shown, the tassels 21 make a wave similar to a sine function, and sometimes can make the tassels 21 rotate 180°, fully contact with the water vapor and steam at the outlet of the air duct 7, absorb and cool the water vapor and steam. The cooled water adheres to the tassels 21 and flows into the collection pipe 12 along the tassel system frame 11, reducing the escape amount of water, and finally entering the cold water pool.

[0028] Embodiment 2

[0029] The steam recovery and cooling device of this embodiment has the same basic structure as that of Embodiment 1. The differences or improvements are as follows: As Figure 1 、 2 shown, it further includes a capillary water cooling system 3; the tassel system 2 further includes a fixed rod 22 and a movable rod 24. The fixed rod 22 is fixedly connected to the tassel system frame 11. The movable rod 24 is rotatably connected to the fixed rod 22 through a fixed pin 23. The movable part of the movable rod 24 is connected to the tassel 21. It is a lightweight rod that can convert the kinetic energy of the tassel 21 into the kinetic energy of water and accelerate the water flow rate; the capillary water cooling system 3 includes a water supply main pipe 31, a water supply branch pipe 32, a water distribution drum 34, capillary branch pipes 35 and a return water main pipe 36; the water supply main pipe 31 is laid along the tassel system frame 11 and externally connected to parallel water supply branch pipes 32. The water supply branch pipes 32 are fixedly connected to the fixed rod 22. The bottom end of the water supply branch pipe 32 is connected and communicated with the water distribution drum 34. The water distribution drum 34 externally connects multiple capillary branch pipes 35 downward. The bottom ends of the capillary branch pipes 35 are all connected and communicated with the return water main pipe 36. The return water main pipe 36 is externally connected to the collection pipe 12. The upper part of the capillary branch pipes 35 is connected to the tassel 21, which is equivalent to a capillary water cooling unit of a neuron. The capillary branch pipes 35 on the tassel 21 cool and recover the water vapor and steam more quickly, further improving the cooling and recovery efficiency.

[0030] For the recovery and cooling method of the steam recovery and cooling device of this embodiment, under the action of the high-pressure air flow blown out by the air duct 7, the tassel 21 makes a wave similar to a sine function, contacts the water vapor and steam at the outlet of the air duct 7, and the capillary branch pipes 35 on the tassel 21 cool the water vapor and steam. The cooled water adheres to the tassel 21, flows along the tassel system frame 11 into the collecting pipe 12, and finally enters the cold water pool.

[0031] Embodiment 3

[0032] The steam recovery and cooling device of this embodiment has the same basic structure as that of Embodiment 2. The differences or improvements are as follows: all or the part of the water separation drum 34 facing the movable rod 24 is made of elastic soft material, such as rubber; when the part facing the movable rod 24 is made of elastic soft material, the other parts are all made of hard materials; when the movable rod 24 makes a sine-like function movement back and forth with the tassel 21, it continuously squeezes the water separation drum 34, converting the kinetic energy of the high-speed air flow into the kinetic energy of the movable rod 24. The back-and-forth movement of the movable rod 24 speeds up the flow rate of the cooling water and improves the cooling efficiency of the capillary branch pipes 35.

[0033] At the connection points of the water supply branch pipe 32, the capillary branch pipes 35 and the water separation drum 34, one-way valves 33 are provided to achieve the one-way flow of the cooling water, avoiding the reverse flow of the cooling water when the movable rod 24 squeezes or expands the water separation drum 34.

[0034] Through on-site detection, the above-mentioned steam recovery and cooling device can fully cool and recover the steam and water vapor at the outlet of the air duct, and the recovery rate is as high as 90%.

[0035] The examples described in the present invention are only descriptions of the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various deformations and improvements made by those skilled in the art to the technical solutions of the present invention should fall within the protection scope of the present invention.

Claims

1. A steam recovery and cooling device, characterized in that, Comprising: A primary cooling system (10), which is in a side-by-side frame structure; A secondary cooling system (20), which is in a juxtaposed frame structure; A tassel system (2), including tassels (21), and after the tassels (21) are unfolded, they are in a fan-shaped ring shape; Both the primary cooling system (10) and the secondary cooling system (20) are fixedly connected to the outlet of the upper air duct (7) of the cooling tower (1); Both the side-by-side and juxtaposed frame structures are tassel system frames (11); the inner ring edge of the fan-shaped ring of the tassel (21) is a fixed end (211), and is fixedly connected to the tassel system frame (11) through the fixed end (211), and the length of the fixed end (211) is adapted to the length of the tassel system frame (11).

2. The steam recovery and cooling device according to claim 1, wherein: It further includes a capillary water cooling system (3); The tassel system (2) further includes a fixed rod (22) and a movable rod (24), the fixed rod (22) is fixedly connected to the tassel system frame (11), the movable rod (24) is rotationally connected to the fixed rod (22) through a fixed pin (23), and the movable part of the movable rod (24) is connected to the tassel (21); The capillary water cooling system (3) includes a water supply main pipe (31), a water supply branch pipe (32), a water distribution drum (34), capillary branch pipes (35) and a return water main pipe (36); the water supply main pipe (31) is laid along the tassel system frame (11) and externally connected to parallel water supply branch pipes (32), the water supply branch pipes (32) are fixedly connected to the fixed rod (22), the bottom end of the water supply branch pipe (32) is connected and communicated with the water distribution drum (34), the water distribution drum (34) is externally connected to a plurality of capillary branch pipes (35) downward, the bottom ends of the capillary branch pipes (35) are all connected and communicated with the return water main pipe (36), and the upper part of the capillary branch pipe (35) is connected to the tassel (21).

3. The steam recovery and cooling device according to claim 2, wherein: The water distribution drum (34) or the part of the water distribution drum (34) facing the movable rod (24) is made of an elastic soft material.

4. The steam recovery and cooling device according to claim 2, characterized in that: At the connection points of the water supply branch pipe (32), the capillary branch pipe (35) and the water distribution drum (34), one-way valves (33) are provided.

5. A recovery and cooling method for a steam recovery and cooling device, characterized in that: Under the action of the high-pressure air flow blown out by the air duct (7), the tassel (21) makes a wave similar to a sine function, contacts the water vapor and steam at the outlet of the air duct (7), the capillary branch pipes (35) on the tassel (21) cool the water vapor and steam, the cooled water adheres to the tassel (21), flows along the tassel system frame (11) into the collection pipe (12), and finally enters the cold water pool.

6. A recovery cooling method according to claim 5, characterized in that: The movable rod (24) makes a movement similar to a sine function back and forth with the tassel (21), continuously squeezes the water distribution drum (34), converts the kinetic energy of the high-speed air flow into the kinetic energy of the movable rod (24), and the back-and-forth movement of the movable rod (24) speeds up the flow rate of the cooling water.

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