Water cooling tower for air separation precooling system

Abstract

The utility model provides a water cooling tower for an air separation pre-cooling system, and relates to the technical field of water cooling towers, the water cooling tower comprises a tower body, a water distribution assembly, a spraying assembly and a wire mesh demister are sequentially arranged in the tower body from bottom to top, an air inlet pipe and a drainage pipe are arranged on one side of the tower body and located below the water distribution assembly, the air inlet pipe is located above the drainage pipe, and an exhaust pipe is arranged at the top of the tower body; the water distribution assembly comprises a water distribution hopper, a mounting frame and a water curtain distribution cone, the water distribution hopper is fixedly arranged in the water cooling tower, the water curtain distribution cone is arranged below an opening in the bottom of the water distribution hopper, the water curtain distribution cone is fixedly arranged in the tower body through the mounting frame, the top of the water distribution hopper is provided with an annular water tank, and the annular water tank is connected with a water distribution pipe communicated with the outside; according to the utility model, the structure of the water cooling tower is optimized, the water distribution bucket of the water distribution component and the water curtain distribution cone design are adopted, so that water uniformly forms a water curtain, the spray component is matched, the gas-liquid contact area is greatly increased, the water distribution component is used for replacing the filler, and the problems that the filler is easy to block after being used for a long time and the gas-liquid contact is influenced due to improper type selection are effectively avoided.

Description

Technical Field

[0001] This application relates to the field of water-cooled tower technology, and more specifically, to a water-cooled tower for an air separation precooling system. Background Technology

[0002] In air separation precooling systems, water-cooled towers play a crucial role. Their main function is to reduce the temperature of air and remove some of its moisture through heat and mass exchange between gas and liquid, thereby providing air with suitable conditions for subsequent air separation processes.

[0003] To ensure sufficient gas-liquid contact, existing water-cooled towers often have packing inside. Inside the tower, air flows from bottom to top and water flows from top to bottom. The packing disperses the water flow, ensuring it is evenly distributed across the tower's cross-section. It also promotes the uniform passage of air through the water layer, guaranteeing a balanced heat exchange process throughout the tower. This stabilizes the cooling effect and improves cooling efficiency.

[0004] However, with increased usage time, the surface of the packing material becomes heavily contaminated with scale, dust, and microbial growth, severely clogging its pores and hindering the uniform distribution of water to form a water film. Simultaneously, airflow is also impeded, preventing sufficient contact between the packing material and water. Furthermore, if the packing material is improperly selected, with an excessively small specific surface area or a structure unfavorable to gas-liquid distribution, it will be difficult to provide adequate gas-liquid contact area and good mass transfer conditions. Therefore, it is necessary to design a water-cooled tower for the air separation precooling system to address these problems. Summary of the Invention

[0005] The purpose of this application is to provide a water-cooled tower for an air separation precooling system. By optimizing the structure of the water-cooled tower, a water distribution component is designed to replace the packing material, which can solve the technical problems of long-term blockage of the packing material and the impact of improper packing material selection on gas-liquid contact.

[0006] This application provides a water-cooled tower for an air separation precooling system, including a tower body. The tower body is provided with a water distribution assembly, a spray assembly and a wire mesh demister from bottom to top. An air inlet pipe and a drain pipe are provided on one side of the tower body below the water distribution assembly. The air inlet pipe is located above the drain pipe. An exhaust pipe is provided at the top of the tower body.

[0007] The water distribution assembly includes a water distribution hopper, a mounting frame, and a water curtain distribution cone. The water distribution hopper is fixed inside the tower body, and the water curtain distribution cone is located below the bottom opening of the water distribution hopper. The water curtain distribution cone is fixed inside the tower body through the mounting frame. The top of the water distribution hopper is provided with an annular water trough, and the annular water trough is connected to a water distribution pipe that communicates with the outside.

[0008] Furthermore, the mounting frame is a T-shaped frame, with the upper part of the mounting frame fixedly connected to the inner wall of the tower body and located above the water distribution hopper, and the lower part of the mounting frame passing through the bottom opening of the water distribution hopper and fixedly connected to the top of the water curtain distribution cone.

[0009] Furthermore, a flow guide shroud is provided between the water distribution hopper and the water curtain distribution cone. The flow guide shroud is fixed to the inner wall of the tower body, and the upper part of the flow guide shroud has an opening. The upper opening of the flow guide shroud is connected to the bottom of the water distribution hopper.

[0010] Furthermore, the water curtain cone has a shell structure.

[0011] Furthermore, the bottom of the water curtain cone protrudes downward to form an arc surface, and one end of the air inlet pipe inside the tower body bends upward and is located below the water curtain cone.

[0012] Furthermore, a buffer ring is fixedly provided on the inner wall of the tower body. The buffer ring is located between the water curtain cone and the air inlet pipe. The inner wall of the buffer ring is provided with annular protrusions with a conical cross-section.

[0013] Furthermore, the distance between one end of the air inlet pipe located inside the tower body and the bottom of the water curtain cone is 10cm-20cm.

[0014] Furthermore, the spray assembly includes a water inlet pipe, a ring pipe, and multiple atomizing nozzles. The ring pipe is horizontally arranged inside the tower body. One end of the water inlet pipe is connected to the ring pipe, and the other end of the water inlet pipe extends outside the tower body. The multiple atomizing nozzles are evenly fixed at the bottom of the ring pipe.

[0015] The beneficial effects of this utility model are:

[0016] The design of the water distribution component in this invention, which includes water distribution hoppers and water curtain cones, allows water to form a uniform water curtain. Combined with the spray component, this greatly increases the gas-liquid contact area and significantly improves cooling efficiency. Compared with existing technologies, this invention optimizes the structure of the water-cooled tower and replaces the packing material with the water distribution component, effectively avoiding problems such as packing blockage due to long-term use and improper packing selection affecting gas-liquid contact. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1These are schematic diagrams of structures in some embodiments of this application;

[0019] Figure 2 This is a schematic diagram of the structure of the water distribution assembly, the flow guide, and the buffer ring in some embodiments of this application;

[0020] The reference numerals in the attached figures are as follows:

[0021] 1. Tower body; 2. Water distribution assembly; 21. Water distribution hopper; 211. Annular water trough; 212. Water distribution pipe; 22. Mounting frame; 23. Water curtain distribution cone; 3. Spray assembly; 31. Water inlet pipe; 32. Ring pipe; 33. Atomizing nozzle; 4. Wire mesh demister; 5. Air inlet pipe; 6. Drain pipe; 7. Exhaust pipe; 8. Flow guide; 9. Buffer ring; 91. Annular protrusion. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0027] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Specific implementation examples:

[0029] like Figure 1 and Figure 2 As shown, this application provides a water-cooled tower for an air separation precooling system, including a tower body 1. Inside the tower body 1, from bottom to top, are arranged a water distribution assembly 2, a spray assembly 3, and a wire mesh demister 4 (which is prior art and will not be described in detail here). On one side of the tower body 1, below the water distribution assembly 2, are an air inlet pipe 5 and a drain pipe 6, with the air inlet pipe 5 located above the drain pipe 6. An exhaust pipe 7 is located at the top of the tower body 1. The water distribution assembly 2 includes a water distribution hopper 21, a mounting frame 22, and a water curtain distribution cone. 23. A water distribution hopper 21 is fixed inside the tower body 1. A water curtain distribution cone 23 is located below the bottom opening of the water distribution hopper 21. The water curtain distribution cone 23 is fixed inside the tower body 1 by a mounting bracket 22. An annular water trough 211 is provided at the top of the water distribution hopper 21. The annular water trough 211 is connected to a water distribution pipe 212 that communicates with the outside. Valves are provided on the air inlet pipe 5 and the drain pipe 6 to control the fluid transport on the corresponding pipes. In use, high-temperature air enters from one side of the tower body 1. The air inlet pipe 5 enters the water distribution pipe 212, which is connected to the chilled water supply equipment. The chilled water flows through the water distribution pipe 212 to the annular water trough 211 at the top of the water distribution bucket 21. Then, it overflows from the annular water trough 211 and falls along the inner wall of the water distribution bucket 21 through the bottom opening of the water distribution bucket 21. It then forms a water curtain along the water curtain cone 23. At the same time, the spray component 3 sprays out fine mist droplets. The air rises and comes into contact with the water curtain and mist droplets to cool down. The cooled air is then discharged from the exhaust pipe 7 at the top of the tower after being dehydrated by the wire mesh demister 4. The used water is discharged from the drain pipe 6 at the bottom of the tower. Through the design of the water distribution bucket 21 and the water curtain cone 23 in the water distribution component 2, the water can be uniformly formed into a water curtain. Combined with the spray component 3, the gas-liquid contact area is greatly increased, and the cooling efficiency is significantly improved. Compared with the existing technology, the structure of the water-cooled tower is optimized. By replacing the packing with the water distribution component 2, the problem of packing blockage due to long-term use and the problem of improper packing selection affecting gas-liquid contact are effectively avoided.

[0030] like Figure 1 and Figure 2 As shown, the mounting frame 22 is a T-shaped frame. The upper part of the mounting frame 22 is fixedly connected to the inner wall of the tower body 1 and located above the water distribution hopper 21. The lower part of the mounting frame 22 passes through the bottom opening of the water distribution hopper 21 and is fixedly connected to the top of the water curtain distribution cone 23. This design cleverly avoids interference with the water distribution process, makes the water curtain evenly distributed, and ensures the gas-liquid contact area and cooling efficiency.

[0031] like Figure 1 and Figure 2 As shown, a guide hood 8 is provided between the water distribution hopper 21 and the water curtain distribution cone 23. The guide hood 8 is fixed to the inner wall of the tower body 1. The upper part of the guide hood 8 has an opening, which is connected to the bottom of the water distribution hopper 21. The high-temperature air from bottom to top is guided to the bottom opening of the water distribution hopper 21 through the guide hood 8, which can prevent the high-temperature air from accumulating at the bottom of the water distribution hopper 21 and prevent the local temperature of the water distribution hopper 21 from being too high, thus affecting its service life.

[0032] like Figure 1 As shown, the water curtain cone 23 has a shell structure, which reduces the weight of the water curtain cone 23, reduces the stress on the mounting frame 22, and the light weight makes it easier to construct, which can reduce the amount of materials used in manufacturing and reduce costs.

[0033] like Figure 1 As shown, the bottom of the water curtain cone 23 protrudes downward to form an arc surface. One end of the air inlet pipe 5 inside the tower body 1 bends upward and is located below the water curtain cone 23. The arc surface formed by the downward protrusion at the bottom of the water curtain cone 23 plays a role in diverting and homogenizing the airflow from the bent end of the air inlet pipe 5. When the air impacts the arc surface upward, the airflow will be evenly dispersed along the arc surface and diffused in all directions above the water curtain cone 23, thereby forming a relatively uniform airflow distribution on the entire cross-section of the tower body 1.

[0034] like Figure 1 and Figure 2 As shown, a buffer ring 9 is fixedly provided on the inner wall of the tower body 1. The buffer ring 9 is located between the water curtain cone 23 and the air inlet pipe 5. The inner wall of the buffer ring 9 is provided with an annular protrusion 91 with a conical cross section. Water flows from top to bottom through the water curtain cone 23 to form a water curtain in all directions. The water curtain impacts the upper side of the annular protrusion 91 of the buffer ring 9 downwards, avoiding direct impact on the inner wall of the tower body 1, avoiding wear on the inner wall of the tower body 1, and extending the service life of the tower body 1.

[0035] like Figure 1As shown, the distance between the end of the air inlet pipe 5 located inside the tower body 1 and the bottom of the water curtain cone 23 is 10cm-20cm. This distance ensures that the high-temperature air flowing out from the air inlet pipe 5 impacts the bottom of the water curtain cone 23 at a suitable speed, so as to achieve effective diversion. Specifically, the distance between the end of the air inlet pipe 5 located inside the tower body 1 and the bottom of the water curtain cone 23 is 15cm.

[0036] like Figure 1 As shown, the spray assembly 3 includes a water inlet pipe 31, a ring pipe 32, and multiple atomizing nozzles 33. The ring pipe 32 is horizontally arranged inside the tower body 1. One end of the water inlet pipe 31 is connected to the ring pipe 32, and the other end of the water inlet pipe 31 extends to the outside of the tower body 1. Multiple atomizing nozzles 33 are evenly fixed at the bottom of the ring pipe 32. The outer end of the water inlet pipe 31 is connected to the chilled water source delivery equipment. The chilled water well inlet pipe 31 flows into the ring pipe 32 and is sprayed out by the atomizing nozzles 33 on the ring pipe 32. The atomizing nozzles 33 can fully atomize the water, increase the contact area between the water and the air, improve the heat exchange efficiency, and enable the air to be cooled quickly.

[0037] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A water-cooled tower for an air separation precooling system, characterized in that: The tower body includes a water distribution assembly, a spray assembly, and a wire mesh demister arranged sequentially from bottom to top. An air inlet pipe and a drain pipe are provided on one side of the tower body below the water distribution assembly, with the air inlet pipe located above the drain pipe. An exhaust pipe is provided at the top of the tower body. The water distribution assembly includes a water distribution hopper, a mounting frame, and a water curtain distribution cone. The water distribution hopper is fixed inside the tower body, and the water curtain distribution cone is located below the bottom opening of the water distribution hopper. The water curtain distribution cone is fixed inside the tower body through the mounting frame. The top of the water distribution hopper is provided with an annular water trough, and the annular water trough is connected to a water distribution pipe that communicates with the outside.

2. A water-cooled tower for an air separation precooling system according to claim 1, characterized in that: The mounting frame is a T-shaped frame. The upper part of the mounting frame is fixedly connected to the inner wall of the tower body and located above the water distribution hopper. The lower part of the mounting frame passes through the bottom opening of the water distribution hopper and is fixedly connected to the top of the water curtain distribution cone.

3. A water-cooled tower for an air separation precooling system according to claim 1, characterized in that: A flow guide hood is provided between the water distribution hopper and the water curtain distribution cone. The flow guide hood is fixed to the inner wall of the tower body. The upper part of the flow guide hood has an opening, and the upper opening of the flow guide hood is connected to the bottom of the water distribution hopper.

4. A water-cooled tower for an air separation precooling system according to claim 1, characterized in that: The water curtain cone has a shell structure.

5. A water-cooled tower for an air separation precooling system according to claim 1, characterized in that: The bottom of the water curtain cone bulges downward to form an arc surface, and the end of the air inlet pipe inside the tower body bends upward and is located below the water curtain cone.

6. A water-cooled tower for an air separation precooling system according to claim 1, characterized in that: A buffer ring is fixed to the inner wall of the tower body. The buffer ring is located between the water curtain cone and the air inlet pipe. The inner wall of the buffer ring has an annular protrusion with a conical cross-section.

7. A water-cooled tower for an air separation precooling system according to claim 6, characterized in that: The distance between one end of the air inlet pipe located inside the tower and the bottom of the water curtain cone is 10cm-20cm.

8. A water-cooled tower for an air separation precooling system according to claim 1, characterized in that: The spray assembly includes a water inlet pipe, a ring pipe, and multiple atomizing nozzles. The ring pipe is horizontally arranged inside the tower body. One end of the water inlet pipe is connected to the ring pipe, and the other end of the water inlet pipe extends outside the tower body. The multiple atomizing nozzles are evenly fixed at the bottom of the ring pipe.

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