Circulating cooling water energy-saving variable-flow automatic exhaust and self-balancing gravity type device of cooling tower

Abstract

The invention relates to the technical field of cooling towers, and provides a circulating cooling water energy-saving variable-flow automatic exhaust and self-balancing gravity type device of a cooling tower, which comprises a water inlet main pipe, a gravity self-balancing mechanism I, a gravity self-balancing mechanism II, a gravity self-balancing mechanism III and a flow speed adjusting mechanism, the first gravity self-balancing mechanism is used for enabling water in the water inlet main pipe to be distributed in a balanced mode, the second gravity self-balancing mechanism is used for enabling water in the first gravity self-balancing mechanism to be evenly distributed in a balanced mode, and the third gravity self-balancing mechanism is used for evenly spraying water in the second gravity self-balancing mechanism into the cooling tower. And the flow speed adjusting mechanism is used for adjusting the speed of the water flow sprayed by the gravity self-balancing mechanism III, and meanwhile, the water can be more uniformly distributed in the gravity self-balancing mechanism III, and through the technical scheme, the problem that in the prior art, a spraying system in a cooling tower is difficult to ensure that the water is uniformly sprayed in the cooling tower is solved.

Description

Technical Field

[0001] This invention relates to the field of cooling tower technology, specifically to an energy-saving variable flow automatic exhaust and self-balancing gravity-type device for circulating cooling water in cooling towers. Background Technology

[0002] A cooling tower is a device that uses the contact between water and air for heat exchange. Its working principle involves using water as a circulating coolant. It absorbs heat from the system and releases it into the atmosphere to lower the water temperature. Cooling towers are mainly used for waste heat discharge in industrial production processes. The water circulation system inside the cooling tower is its core component. A circulating pump transports hot water from the cooling equipment to the cooling tower. Inside the cooling tower, the water is evenly distributed on the packing material through a spray system. When air passes through the packing material, water molecules come into contact with the air and evaporate, carrying away heat and thus lowering the water temperature. Because the flue gas is evenly contacted with the water in the cooling tower, some dust in the flue gas comes into contact with the water, causing the dust to be separated. To a certain extent, the cooling tower can act as a dust removal tower. The design and operating efficiency of the cooling tower directly affect the performance and energy consumption of the entire cooling system. The water distribution system is an important component of a counter-flow cooling tower. The effectiveness of the contact between the cooling water and air directly affects the operating efficiency of the cooling tower. Furthermore, whether the water distribution system can improve the contact effect between water and flue gas also directly affects the amount of dust in the flue gas.

[0003] In traditional cooling towers, water is directly fed to a water distributor, which then sprays the water onto the packing material, ensuring uniform flow. However, the water distributor is a device that distributes water evenly throughout the cooling tower. Water is delivered to various points on the distributor by water pressure, and air bubbles and impurities in the water can affect the flow rate and distribution of water at different locations. Therefore, to ensure that the flow rate of the spray water is controllable and that the spray speed is the same at all locations during spray cooling in the cooling tower, we propose an energy-saving, variable-flow, automatic exhaust, and self-balancing gravity-type device for circulating cooling water in cooling towers. Summary of the Invention

[0004] This invention proposes an energy-saving, variable-flow, automatic exhaust, and self-balancing gravity-type device for circulating cooling water in cooling towers, which solves the problem in existing cooling tower spray systems that cannot guarantee uniform water spraying within the cooling tower.

[0005] The technical solution of the present invention is as follows: The cooling tower's circulating cooling water energy-saving variable flow automatic exhaust and self-balancing gravity device includes a main inlet pipe, a gravity self-balancing mechanism one, a gravity self-balancing mechanism two, a gravity self-balancing mechanism three, and a flow rate regulating mechanism. The main inlet pipe is installed in the cooling tower and is used to transport cooling water. The gravity self-balancing mechanism one is fixedly installed on and connected to the main inlet pipe, and is used to ensure a balanced water distribution in the main inlet pipe. The gravity self-balancing mechanism two is connected to the gravity self-balancing mechanism one. The gravity self-balancing mechanism two is used to ensure that the water in the gravity self-balancing mechanism one is evenly distributed. The gravity self-balancing mechanism three is connected to the gravity self-balancing mechanism three and is used to evenly spray the water in the gravity self-balancing mechanism two into the cooling tower. The flow rate regulating mechanism is set on the gravity self-balancing mechanism three and is used to regulate the speed of the water flow sprayed by the gravity self-balancing mechanism three, so that the water can be more evenly distributed in the gravity self-balancing mechanism three.

[0006] The gravity self-balancing mechanism includes a flow-slowing cylinder and a connecting pipe. The flow-slowing cylinder is installed on the main water inlet pipe. Multiple connecting pipes are installed around the flow-slowing cylinder. The connecting pipes are connected to the gravity self-balancing mechanism.

[0007] The gravity self-balancing mechanism II includes a flow-slowing cylinder II and a connecting pipe II. Each connecting pipe I is equipped with a flow-slowing cylinder II. The flow-slowing cylinder II is connected to the gravity self-balancing mechanism III. There are multiple connecting pipe IIs. The two ends of each connecting pipe II are connected to two adjacent flow-slowing cylinder IIs respectively. Each flow-slowing cylinder II is equipped with a drain valve at its bottom. The lower ends of the multiple drain valves are connected to drain pipes.

[0008] The gravity self-balancing mechanism includes a water distribution cylinder, a spray pipe, and an air guide groove. Each of the two slow-flow cylinders is connected to a water distribution cylinder. Each water distribution cylinder is provided with multiple spray pipes at equal intervals. Multiple spray heads are provided on the lower side of each spray pipe. The air guide groove is opened on the water distribution cylinder. The air guide grooves on adjacent water distribution cylinders are connected. The air guide groove is located on the upper side of the water distribution cylinder, and the spray pipe is located on the lower side of the water distribution cylinder.

[0009] The gravity self-balancing mechanism one is located below the gravity self-balancing mechanism two, the gravity self-balancing mechanism two is located below the gravity self-balancing mechanism three, and the gravity self-balancing mechanism three is located below the flow rate regulating mechanism.

[0010] The flow rate regulating mechanism includes a first air guide pipe and a second air guide pipe. Multiple first air guide pipes are provided, and both ends of the first air guide pipe are respectively connected to the adjacent ends of two adjacent air guide grooves. Multiple second air guide pipes are provided, and both ends of the second air guide pipe are respectively connected to the far ends of two adjacent air guide grooves. The center of adjacent first air guide pipes and second air guide pipes is connected. A connecting pipe third is connected between the multiple second air guide pipes.

[0011] The connecting pipe three is equipped with a connecting pipe four, a drain pipe, an exhaust pipe, and an air inlet pipe. The connecting pipe four is connected to the center of the connecting pipe three. The drain pipe is installed on the connecting pipe four and is equipped with a valve one. The exhaust pipe is installed on the connecting pipe four and is equipped with a valve two. The air inlet pipe is installed on the connecting pipe four and is equipped with a valve three. The air inlet pipe is connected to an external air pump.

[0012] A level gauge is installed on the second air guide pipe, and a level gauge is installed on one of the water distribution cylinders.

[0013] The working principle and beneficial effects of this invention are as follows: 1. In this invention, by setting up water distribution cylinders and spray pipes, the gas in the water gathers in the air guide channel. The gas in the four water distribution cylinders flows to each other through the connection between the air guide channels, so that the gas pressure is the same. Through gravity and water pressure, the water is evenly sprayed into the cooling tower through the spray head. 2. In this invention, by setting up a drain pipe, an air inlet pipe and an exhaust pipe, when valve two is opened, gas flows out, the air pressure decreases, and the water spraying speed decreases. When valve three is opened, gas is introduced into the interior to increase the air pressure, which can increase the water spraying speed. When the water level is too high, valve one can be opened to release the excess water. 3. In this invention, by setting up gravity self-balancing mechanism one, gravity self-balancing mechanism two and gravity self-balancing mechanism three, the water flow is kept in balance. By setting up a flow rate regulating mechanism, the water can be further balanced by gravity, and the flow rate of the water is controlled by air pressure. Attached Figure Description

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure from another perspective of the present invention; Figure 3 This is a partial structural diagram of the gravity self-balancing mechanism in this invention; Figure 4This is a partial structural schematic diagram of the flow rate regulating mechanism in this invention; Figure 5 This is a partial structural schematic diagram of the connecting pipe four in this invention; Figure 6 This is a partial structural diagram of level gauge one and level gauge two in this invention.

[0016] In the diagram: 1. Main inlet pipe; 2. Flow buffer 1; 3. Connecting pipe 1; 4. Flow buffer 2; 5. Connecting pipe 2; 6. Drain valve; 7. Drain pipe; 8. Divider cylinder; 9. Spray pipe; 10. Spray head; 11. Air guide trough; 12. Air guide pipe 1; 13. Air guide pipe 2; 14. Connecting pipe 3; 15. Connecting pipe 4; 16. Drain pipe; 17. Valve 1; 18. Exhaust pipe; 19. Valve 2; 20. Air inlet pipe; 21. Valve 3; 22. Level gauge 1; 23. Level gauge 2. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0018] like Figures 1 to 6 As shown, this embodiment proposes an energy-saving, variable-flow, automatic exhaust and self-balancing gravity-type device for circulating cooling water in a cooling tower. It includes a main inlet pipe 1, a gravity self-balancing mechanism one, a gravity self-balancing mechanism two, a gravity self-balancing mechanism three, and a flow rate regulating mechanism. The main inlet pipe 1 is installed in the cooling tower and is used to transport cooling water. The gravity self-balancing mechanism one is fixedly installed on and connected to the main inlet pipe 1, and is used to ensure a balanced distribution of water in the main inlet pipe 1. The gravity self-balancing mechanism two is connected to the gravity self-balancing mechanism one, and is used to ensure a uniform and balanced distribution of water in the gravity self-balancing mechanism one. The third balancing mechanism is connected to the third gravity self-balancing mechanism. The third gravity self-balancing mechanism is used to evenly spray the water in the second gravity self-balancing mechanism into the cooling tower. The flow rate regulating mechanism is set on the third gravity self-balancing mechanism. The flow rate regulating mechanism is used to regulate the speed of the water flow sprayed by the third gravity self-balancing mechanism, so that the water can be more evenly distributed in the third gravity self-balancing mechanism. The water moves through the main water inlet pipe 1 to the first gravity self-balancing mechanism and then flows evenly into the second gravity self-balancing mechanism. After the water is balanced, it flows into the third gravity self-balancing mechanism. The water is kept balanced in the third gravity self-balancing mechanism by the flow rate regulating mechanism, so that the water can be evenly sprayed into the cooling tower.

[0019] like Figures 1 to 3As shown, the gravity self-balancing mechanism includes a flow-retarding cylinder 2 and a connecting pipe 3. The flow-retarding cylinder 2 is installed on the main water inlet pipe 1, and multiple connecting pipes 3 are installed. The multiple connecting pipes 3 are arranged around the flow-retarding cylinder 2. The connecting pipes 3 are connected to the gravity self-balancing mechanism 2. In this embodiment, four connecting pipes 3 and four flow-retarding cylinders 4 are installed. The diameter of the flow-retarding cylinder 2 is larger than that of the main water inlet pipe 1. When water enters the flow-retarding cylinder 2, the water flow rate slows down, so that the water can maintain a balanced flow in the flow-retarding cylinder 2. When water enters the four flow-retarding cylinders 4, the liquid level in the four flow-retarding cylinders 4 is the same.

[0020] like Figures 1 to 3 As shown, the gravity self-balancing mechanism II includes a flow-slowing cylinder II 4 and a connecting pipe II 5. Each connecting pipe I 3 is equipped with a flow-slowing cylinder II 4, which is connected to the gravity self-balancing mechanism III. Multiple connecting pipes II 5 are provided, with each end of the connecting pipe II 5 connected to two adjacent flow-slowing cylinder II 4. Each flow-slowing cylinder II 4 has a drain valve 6 at its bottom, and the lower ends of multiple drain valves 6 are connected to drain pipes 7. The diameter of the flow-slowing cylinder II 4 is larger than that of the connecting pipe I 3. After the water enters the flow-slowing cylinder II 4, the flow rate slows down. The water in the flow-slowing cylinder II 4 is connected through the connecting pipes II 5 to ensure that the liquid level and water pressure in the four flow-slowing cylinder II 4 are the same. This ensures that when the water enters the four water distribution cylinders 8, the liquid level and water pressure in the four water distribution cylinders 8 are the same. Since the water flows to the water distribution cylinders 8 after entering the flow-slowing cylinder II 4, impurities in the water will be deposited in the flow-slowing cylinder II 4. The dirt is discharged through the drain pipes 7 by opening the drain valve 6.

[0021] like Figures 1 to 5 As shown, the gravity self-balancing mechanism includes a water distribution cylinder 8, a spray pipe 9, and an air guide trough 11. Each flow-slowing cylinder 4 is connected to a water distribution cylinder 8, and multiple spray pipes 9 are equally spaced on each water distribution cylinder 8. Multiple spray heads 10 are arranged on the lower side of the spray pipes 9. The air guide trough 11 is opened on the water distribution cylinder 8, and the air guide troughs 11 on adjacent water distribution cylinders 8 are connected. The air guide trough 11 is located on the upper side of the water distribution cylinder 8, and the spray pipes 9 are located on the lower side of the water distribution cylinder 8. The gas in the water gathers in the air guide trough 11. The connection between the air guide troughs 11 allows the gas in the four water distribution cylinders 8 to flow to each other, so that the gas pressure is the same. Through gravity and water pressure, the water is evenly sprayed into the cooling tower through the spray heads 10.

[0022] like Figures 1 to 3 As shown, gravity self-balancing mechanism one is located below gravity self-balancing mechanism two, gravity self-balancing mechanism two is located below gravity self-balancing mechanism three, and gravity self-balancing mechanism three is located below the flow rate regulating mechanism.

[0023] like Figures 1 to 5As shown, the flow rate adjustment mechanism includes a first air guide pipe 12 and a second air guide pipe 13. Multiple first air guide pipes 12 are provided, and both ends of the first air guide pipe 12 are connected to the adjacent ends of two adjacent air guide grooves 11. Multiple second air guide pipes 13 are provided, and both ends of the second air guide pipe 13 are connected to the far ends of two adjacent air guide grooves 11. The center of adjacent first air guide pipes 12 and second air guide pipes 13 is connected. A third connecting pipe 14 connects the multiple second air guide pipes 13, and the four air guide grooves 11 are connected to each other through the third connecting pipe 14, which further ensures the balanced distribution of water in the spray pipe 9.

[0024] like Figures 4 to 6 As shown, the connecting pipe 14 is equipped with a connecting pipe 15, a drain pipe 16, an exhaust pipe 18, and an air inlet pipe 20. The connecting pipe 15 is connected to the center of the connecting pipe 14. The drain pipe 16 is installed on the connecting pipe 15 and is equipped with a valve 17. The exhaust pipe 18 is installed on the connecting pipe 15 and is equipped with a valve 29. The air inlet pipe 20 is installed on the connecting pipe 15 and is equipped with a valve 31. The air inlet pipe 20 is connected to an external air pump. The air guide pipe 13 is equipped with a level gauge 22. One of the water distribution cylinders 8 is equipped with a level gauge 23. When the valve 219 is opened, gas flows out, the air pressure decreases, and the water spraying speed decreases. When the valve 321 is opened, gas is introduced into the interior to increase the air pressure, which can increase the water spraying speed. When the water level is too high, the valve 17 can be opened to release the excess water.

[0025] In this embodiment, water from the bottom of the cooling tower is transported upward through the main inlet pipe 1. The water enters the first slow-flow cylinder 2, where its flow rate slows down. The water rises to the first connecting pipe 3 and flows into the four second slow-flow cylinders 4. After the water level in the second slow-flow cylinders 4 rises to the second connecting pipe 5, the water in the four second slow-flow cylinders 4 flows together, making the water levels in the four second slow-flow cylinders 4 equal. The water moves upward into the four distribution cylinders 8 and downward into the spray pipes 9. The level gauge 23 can detect the water level in the distribution cylinders 8. After the water moves into the distribution cylinders 8, the gas in the water moves into the air guide channel 11 and towards the first air guide pipe 12 and the second air guide pipe 13. When valves 17, 19, and 21 are all closed, the water, under water pressure, is sprayed into the cooling tower through the spray head 10. The gas flows between the air guide channels 11, making the pressure in the multiple spray pipes 9 the same. With the same flow rate, when the level gauge 23 detects that the liquid level in the water distribution cylinder 8 is too low, it indicates that there is too much gas in the air guide pipe 12 and the air guide pipe 23. At this time, valve 219 is opened and the gas is discharged through the exhaust pipe 18. At this time, the liquid level in the water distribution pipe rises. Then, valve 219 is closed and spraying continues. When it is necessary to reduce the spraying speed, the air flow rate of valve 21 is adjusted to reduce the pressure in the spray pipe 9 and reduce the spraying speed. When it is necessary to increase the water spraying speed, the pressure can be increased by opening valve 321 and introducing gas into the interior through the air inlet pipe 20, thereby increasing the water spraying speed. When the water spraying speed is too fast, valve 219 can be opened to discharge the gas. Then, valve 219 is closed and valve 17 is opened to discharge the water through the drain pipe 16. The water pressure in the spray pipe 9 is reduced, thereby reducing the spraying speed at the spray nozzle.

[0026] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A circulating cooling water energy-saving variable flow automatic exhaust and self-balancing gravity-type device for cooling towers, characterized in that: include: A main water inlet pipe (1) is installed in the cooling tower and is used to transport cooling water. Gravity self-balancing mechanism 1, the gravity self-balancing mechanism 1 is fixedly installed on the water inlet main pipe (1) and connected to the water inlet main pipe (1), the gravity self-balancing mechanism 1 is used to make the water in the water inlet main pipe (1) balanced; Gravity self-balancing mechanism two, which is connected to gravity self-balancing mechanism one, is used to make the water in gravity self-balancing mechanism one evenly distributed. Gravity self-balancing mechanism three, which is connected to gravity self-balancing mechanism two, is used to evenly spray the water in gravity self-balancing mechanism two into the cooling tower. A flow rate regulating mechanism is provided on the gravity self-balancing mechanism three. The flow rate regulating mechanism is used to regulate the speed of the water flow sprayed by the gravity self-balancing mechanism three, so that the water can be more evenly distributed in the gravity self-balancing mechanism three.

2. The circulating cooling water energy-saving variable flow automatic exhaust and self-balancing gravity device for cooling towers according to claim 1, characterized in that, The gravity self-balancing mechanism includes: Slow-flow cylinder one (2), the slow-flow cylinder one (2) is installed on the main water inlet pipe (1); Connecting pipe one (3), multiple connecting pipes one (3) are provided, multiple connecting pipes one (3) are arranged around the slow flow cylinder one (2), and the connecting pipe one (3) is connected to the gravity self-balancing mechanism two.

3. The circulating cooling water energy-saving variable flow automatic exhaust and self-balancing gravity device for cooling towers according to claim 2, characterized in that, The gravity self-balancing mechanism two includes: Slow-flow cylinder two (4), each of the connecting pipes one (3) is provided with a slow-flow cylinder two (4), and the slow-flow cylinder two (4) is connected to the gravity self-balancing mechanism three; Connecting pipe two (5), multiple connecting pipe two (5) are provided, and the two ends of the connecting pipe two (5) are respectively connected to two adjacent slow flow cylinder two (4).

4. The circulating cooling water energy-saving variable flow automatic exhaust and self-balancing gravity device for cooling towers according to claim 3, characterized in that, Each of the two slow-flow cylinders (4) is provided with a drain valve (6) at its bottom, and the lower ends of the multiple drain valves (6) are connected to drain pipes (7).

5. The circulating cooling water energy-saving variable flow automatic exhaust and self-balancing gravity device for cooling towers according to claim 4, characterized in that, The gravity self-balancing mechanism three includes: Water distribution cylinder (8), and each of the two slow-flow cylinders (4) is connected to a water distribution cylinder (8); Spray pipe (9), each of the water distribution cylinders (8) is provided with multiple spray pipes (9) at equal intervals, and multiple spray heads (10) are provided on the lower side of the spray pipe (9). Air guide groove (11) is formed on the water distribution cylinder (8), and the air guide grooves (11) on adjacent water distribution cylinders (8) are connected.

6. The circulating cooling water energy-saving variable flow automatic exhaust and self-balancing gravity device for cooling towers according to claim 5, characterized in that, The air guide groove (11) is located on the upper side of the water distribution cylinder (8), and the spray pipe (9) is located on the lower side of the water distribution cylinder (8).

7. The circulating cooling water energy-saving variable flow automatic exhaust and self-balancing gravity device for cooling towers according to claim 6, characterized in that, The gravity self-balancing mechanism one is located below the gravity self-balancing mechanism two, the gravity self-balancing mechanism two is located below the gravity self-balancing mechanism three, and the gravity self-balancing mechanism three is located below the flow rate regulating mechanism.

8. The circulating cooling water energy-saving variable flow automatic exhaust and self-balancing gravity device for cooling towers according to claim 7, characterized in that, The flow rate regulating mechanism includes: A first air guide tube (12) is provided in multiple ways, and the two ends of the first air guide tube (12) are respectively connected to the adjacent ends of the two adjacent air guide grooves (11). A second air guide tube (13) is provided, and multiple second air guide tubes (13) are provided. The two ends of the second air guide tube (13) are respectively connected to the far ends of the two adjacent air guide grooves (11). The adjacent air duct one (12) is connected to the center of the air duct two (13), and the multiple air duct two (13) are connected by a connecting pipe three (14).

9. The circulating cooling water energy-saving variable flow automatic exhaust and self-balancing gravity device for cooling towers according to claim 8, characterized in that, The connecting pipe three (14) is provided with: Connecting pipe four (15), which is connected to the center of connecting pipe three (14); Drain pipe (16), the drain pipe (16) is installed on the connecting pipe four (15), and valve one (17) is installed on the drain pipe (16). Exhaust pipe (18), the exhaust pipe (18) is provided on the connecting pipe four (15), and valve two (19) is provided on the exhaust pipe (18). An air intake pipe (20) is provided on the connecting pipe four (15), and a valve three (21) is provided on the air intake pipe (20). The air intake pipe (20) is connected to an external air pump.

10. The circulating cooling water energy-saving variable flow automatic exhaust and self-balancing gravity device for cooling towers according to claim 9, characterized in that, A level gauge 1 (22) is installed on the second air guide pipe (13), and a level gauge 2 (23) is installed on one of the water distribution cylinders (8).

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