Cooling tower for air separation plant

Abstract

The utility model discloses a cooling tower for air separation equipment, and belongs to the field of cooling of air separation equipment. A cooling tower for an air separation plant comprises a shell, a gas conveying pipe is arranged at the top of the shell, a gas outlet pipe is arranged on one side of the shell, and a guide assembly is arranged on the inner side of the shell. By arranging the guide assembly, a first cooling layer and a second cooling layer, gas cooling duration control is effectively improved; the first temperature sensor is installed to monitor the gas outlet temperature in real time, and the control system is matched to adjust the rotating speed of the fan to enhance or weaken the gas flowability, so that the contact area and contact time of the gas and the heat exchanger are increased or shortened, the heat exchange efficiency is improved, and efficient cooling is achieved; the cooling process is monitored in real time and accurately controlled, the stability of the cooling effect is ensured, energy waste is avoided, meanwhile, it is ensured that gas is evenly distributed in the cooling tower, and the problem of local overheating or insufficient cooling is solved.

Description

Technical Field

[0001] This utility model relates to the field of air separation equipment cooling, and in particular to a cooling tower for air separation equipment. Background Technology

[0002] In traditional air separation equipment cooling towers, the gas cooling process typically depends on the structural design of the cooling tower and the selection of the cooling medium.

[0003] Traditional methods improve cooling efficiency by increasing the height of the cooling tower or using more cooling medium, but these methods have certain drawbacks. For example, cooling efficiency is limited by factors such as gas flow rate, the thermal conductivity of the cooling medium, and the structure of the cooling tower. It is difficult to achieve precise control of the cooling process, and it is prone to energy waste and problems such as localized overheating or insufficient cooling. Utility Model Content

[0004] The purpose of this invention is to provide a cooling tower for air separation equipment to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A cooling tower for an air separation unit includes: a shell, an air supply pipe disposed on the top of the shell, an air outlet pipe disposed on one side of the shell, and a guide assembly disposed on the inner side of the shell; wherein...

[0007] The inner side of the outer shell is provided with a first cooling layer, the first cooling layer includes a cavity two, the inner side of the outer shell is provided with a cavity two, a servo motor two is fixed on the outer side of the cavity two, the output end of the servo motor two is fixed with an impeller two through a connecting rod, and a plate heat exchanger one is fixed on the cavity two.

[0008] The bottom of the outer shell is provided with a second cooling layer, which includes a cavity three. The bottom of the outer shell has a cavity three, and a plate heat exchanger two and a temperature sensor one are fixed inside the cavity three.

[0009] The first cooling layer, located directly below the guide assembly, includes a second cavity, a second servo motor, a second impeller, and a first plate heat exchanger. The second servo motor drives the second impeller to rotate, enhancing gas flow within the second cavity and improving heat exchange efficiency with the first plate heat exchanger. The first plate heat exchanger transfers heat from the gas to the cooling medium, achieving the first cooling step. The second cooling layer, located directly below and to one side of the first cooling layer, includes a third cavity, a second plate heat exchanger, and a first temperature sensor. The second plate heat exchanger further transfers heat from the gas to the cooling medium, achieving the second cooling step. The first temperature sensor monitors the temperature of the cooled gas to ensure the cooling effect meets requirements.

[0010] The guiding assembly is located inside the housing and includes a cavity, a servo motor, and an impeller. The servo motor drives the impeller to rotate, providing initial guidance and dispersion for the gas entering the cooling tower, which helps the gas to be distributed more evenly in the cooling layer.

[0011] Preferably, the guide assembly includes a cavity, the cavity is formed on the inner side of the housing, a servo motor is fixed on the outer side of the cavity, and an impeller is fixed to the output end of the servo motor via a connecting rod.

[0012] The guiding assembly is located inside the housing and includes a cavity, a servo motor, and an impeller. The servo motor drives the impeller to rotate, providing initial guidance and dispersion for the gas entering the cooling tower, which helps the gas to be distributed more evenly in the cooling layer.

[0013] Preferably, the first cooling layer is disposed directly below the guide assembly.

[0014] Preferably, the plate heat exchanger is located on one side of the servo motor and the impeller.

[0015] Preferably, the temperature sensor is located on the lower side of the plate heat exchanger.

[0016] Preferably, the second cooling layer is located directly below one side of the first cooling layer.

[0017] Preferably, the outer casing has reserved openings with the same diameter as the gas supply pipe and the gas outlet pipe.

[0018] Preferably, a third cooling layer is also fixed on the inner side of the outer shell. The third cooling layer includes a cavity four. The cavity four is fixed on one side of the cavity three through a pipe. At least one set of temperature sensors two is provided on the cavity four. A spray assembly is fixed on the inner side of the cavity four. A water outlet pipe is fixed at the bottom of the spray assembly.

[0019] Preferably, the spray assembly includes a water inlet pipe, the lower side of the cavity is fixed with the water inlet pipe, the lower side of the water inlet pipe is fixed with an annular spray pipe, and a number of nozzles are fixed on one side of the spray pipe.

[0020] Compared with the prior art, the present invention provides a cooling tower for air separation equipment, which has the following advantages:

[0021] 1. This utility model effectively improves the control of gas cooling time by setting up a guide component, a first cooling layer, and a second cooling layer. Furthermore, by installing a temperature sensor to monitor the outlet gas temperature in real time, and cooperating with an external control system to adjust the fan speed to enhance or weaken gas flow, the contact area and contact time between the gas and the heat exchanger are increased or decreased, thereby improving heat exchange efficiency and achieving high-efficiency cooling. Real-time monitoring and precise control of the cooling process ensure the stability of the cooling effect and avoid energy waste. Simultaneously, it ensures uniform gas distribution within the cooling tower, avoiding localized overheating or insufficient cooling, and improving the uniformity and stability of cooling.

[0022] 2. This utility model further improves the cooling capacity of the cooling tower by adding a third cooling layer. The gas is sprayed through a ring-shaped spray pipe to maximize the heat exchange efficiency. Temperature sensor 2 monitors the temperature of the gas to be cooled in real time and adjusts the spray volume of the spray assembly and the fan speed in the first and second cooling layers in real time to ensure sufficient heat exchange between the gas and the cooling medium, achieving a highly efficient cooling effect. This avoids resource waste caused by excessive spraying and improves the overall operating efficiency of the cooling tower. Furthermore, the cooling medium enters the spray pipe through the water inlet pipe and is then sprayed into the gas in the form of mist or fine water droplets through the nozzles, which greatly increases the contact area between the gas and the cooling medium, making the heat exchange more complete and thus improving the cooling effect. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of a cooling tower for an air separation unit proposed in this utility model;

[0024] Figure 2 This is a cross-sectional structural diagram of a cooling tower for an air separation unit proposed in this utility model;

[0025] Figure 3 This is a cross-sectional structural diagram of a cooling tower for an air separation unit proposed in this utility model;

[0026] Figure 4 This is a cross-sectional structural diagram of a cooling tower for an air separation unit proposed in this utility model;

[0027] Figure 5 This is a schematic diagram of the front elevation structure of a cooling tower for an air separation unit proposed in this utility model;

[0028] Figure 6 This is a schematic diagram of the front elevation structure of a cooling tower for an air separation unit proposed in this utility model;

[0029] Figure 7 This is a three-dimensional structural diagram of the third cooling layer of a cooling tower for an air separation unit proposed in this utility model.

[0030] Figure 8 This is a schematic diagram of the third cooling layer structure of a cooling tower for an air separation unit proposed in this utility model;

[0031] Figure 9 This is a schematic diagram of the spray assembly structure of a cooling tower for an air separation unit proposed in this utility model.

[0032] In the diagram: 1. Outer shell; 2. Gas supply pipe; 3. Gas outlet pipe; 4. Guide assembly; 41. Cavity 1; 42. Servo motor 1; 43. Impeller 1; 5. First cooling layer; 51. Cavity 2; 52. Servo motor 2; 53. Impeller 2; 54. Plate heat exchanger 1; 6. Second cooling layer; 61. Cavity 3; 62. Plate heat exchanger 2; 63. Temperature sensor 1; 7. Third cooling layer; 71. Cavity 4; 72. Temperature sensor 2; 73. Spray assembly; 731. Water inlet pipe; 732. Spray pipe; 733. Nozzle; 74. Water outlet pipe. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0034] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model. Example 1

[0035] refer to Figures 1-5 A cooling tower for an air separation unit includes: a shell 1, an air supply pipe 2 disposed on the top of the shell 1, an air outlet pipe 3 disposed on one side of the shell 1, and a guide assembly 4 disposed on the inner side of the shell 1; wherein

[0036] A first cooling layer 5 is provided on the inner side of the outer casing 1. The first cooling layer 5 includes a cavity 51. A servo motor 52 is fixed on the outer side of the cavity 51. An impeller 53 is fixed to the output end of the servo motor 52 via a connecting rod. A plate heat exchanger 54 is fixed on the cavity 51.

[0037] The bottom of the outer casing 1 is provided with a second cooling layer 6, which includes a cavity 61. The bottom of the outer casing 1 has a cavity 61, and a plate heat exchanger 62 and a temperature sensor 63 are fixed inside the cavity 61.

[0038] The first cooling layer 5 is located directly below the guide assembly 4 and includes a second cavity 51, a second servo motor 52, a second impeller 53, and a first plate heat exchanger 54. The second servo motor 52 drives the second impeller 53 to rotate, enhancing gas flow within the second cavity 51 and improving heat exchange efficiency with the first plate heat exchanger 54. The first plate heat exchanger 54 transfers heat from the gas to the cooling medium, achieving the first cooling. The second cooling layer 6 is located directly below one side of the first cooling layer 5 and includes a third cavity 61, a second plate heat exchanger 62, and a first temperature sensor 63. The second plate heat exchanger 62 further transfers heat from the gas to the cooling medium, achieving the second cooling. The first temperature sensor 63 monitors the temperature of the cooled gas to ensure the cooling effect meets requirements.

[0039] The guide assembly 4 includes a cavity 41. The cavity 41 is opened on the inner side of the outer shell 1. A servo motor 42 is fixed on the outer side of the cavity 41. An impeller 43 is fixed to the output end of the servo motor 42 via a connecting rod.

[0040] The guide assembly 4 is located inside the housing 1 and includes a cavity 41, a servo motor 42, and an impeller 43. The servo motor 42 drives the impeller 43 to rotate, which initially guides and disperses the gas entering the cooling tower, helping the gas to be distributed more evenly in the cooling layer.

[0041] The first cooling layer 5 is located directly below the guide assembly 4.

[0042] Plate heat exchanger 54 is located on one side of servo motor 52 and impeller 53.

[0043] Temperature sensor 63 is located on the lower side of plate heat exchanger 62.

[0044] The second cooling layer 6 is located directly below one side of the first cooling layer 5.

[0045] The outer casing 1 has reserved openings with the same diameter as the gas supply pipe 2 and the gas outlet pipe 3. Example 2

[0046] Based on the above embodiment 1, refer to Figure 7 , Figure 8 , Figure 9The inner side of the outer shell 1 is also fixed with a third cooling layer 7. The third cooling layer 7 includes a cavity 4 71. One side of the cavity 3 61 is fixed with the cavity 4 71 through a pipe. At least one set of temperature sensors 2 72 is provided on the cavity 4 71. A spray assembly 73 is fixed inside the cavity 4 71. A water outlet pipe 74 is fixed at the bottom of the spray assembly 73.

[0047] The spray assembly 73 includes a water inlet pipe 731. The water inlet pipe 731 is fixed to the lower side of the cavity 71. A ring-shaped spray pipe 732 is fixed to the lower side of the water inlet pipe 731. Several sets of nozzles 733 are fixed to one side of the spray pipe 732.

[0048] The third cooling layer 7 is a further enhanced cooling layer located to one side of the second cooling layer 6, further enhancing the cooling capacity of the cooling tower. The third cooling layer 7 includes a cavity 71, at least one set of temperature sensors 72, a spray assembly 73, and an outlet pipe 74. The cavity 71 serves as the main space of the third cooling layer and is connected to the third cooling layer 61 via pipes, ensuring smooth airflow. The design of the cavity 71 takes into account gas flow and the layout of the spray assembly 73 to maximize heat exchange efficiency. At least one set of temperature sensors 72 is installed on the cavity 71 to monitor the temperature of the cooled gas in real time. These sensors ensure that the cooling effect meets predetermined requirements and provide feedback when necessary to adjust the spray volume of the spray assembly 73 and the fan speed in the first cooling layer 5 and the second cooling layer 7. The spray assembly 73 is the core component of the third cooling layer, responsible for uniformly spraying the cooling medium into the gas for further cooling. The spray assembly 73 includes an inlet pipe 731, a spray pipe 732, and nozzles 733. The inlet pipe 731, located on the lower side of cavity 71, is responsible for introducing external cooling medium into the spray assembly 73. The spray pipe 732 is designed as a ring structure, surrounding the inner side of cavity 71. The spray pipe 732 is connected to the inlet pipe 731, ensuring that the cooling medium can be evenly distributed to each nozzle 733. Several sets of nozzles 733 are fixed to one side of the spray pipe 732, used to spray the cooling medium into the gas in the form of a mist or fine water droplets. The design and layout of the nozzles 733 take into account the gas flow velocity and direction to ensure that the cooling medium can evenly cover the entire gas flow field. The outlet pipe 74, located at the bottom of the spray assembly 73, is responsible for discharging used cooling medium (such as water) from cavity 71 for recycling or treatment.

[0049] Working principle: Please refer to Figures 1-5As shown, this embodiment describes a cooling tower for an air separation unit. Its main structure includes a shell 1, a gas supply pipe 2, a gas outlet pipe 3, a guide assembly 4, a first cooling layer 5, and a second cooling layer 6. The shell 1 serves as the main structure of the cooling tower. A gas supply pipe 2 is installed at its top for inputting the gas to be cooled; a gas outlet pipe 3 is installed on one side for outputting the cooled gas. The guide assembly 4 is located inside the shell 1 and includes a cavity 41, a servo motor 42, and an impeller 43. The servo motor 42 drives the impeller 43 to rotate, providing initial guidance and dispersion for the gas entering the cooling tower, helping to distribute the gas more evenly in the cooling layers. The first cooling layer 5 is located directly below the guide assembly 4 and includes a cavity 51, a servo motor 52, an impeller 53, and a plate heat exchanger 54. The servo motor 52 drives the impeller 53 to rotate, enhancing the gas flow within the cavity 51 and improving the heat exchange efficiency with the plate heat exchanger 54. Plate heat exchanger 54 is used to transfer heat from the gas to the cooling medium, achieving the first cooling. The second cooling layer 6 is located directly below and to one side of the first cooling layer 5, and includes cavity 61, plate heat exchanger 62, and temperature sensor 63. Plate heat exchanger 62 further transfers heat from the gas to the cooling medium, achieving the second cooling. Temperature sensor 63 is used to monitor the temperature of the cooled gas to ensure that the cooling effect meets requirements.

[0050] The gas to be cooled enters the cooling tower through the gas supply pipe 2. Under the action of the guide assembly 4, the gas is initially guided and dispersed, preparing to enter the first cooling layer 5. In the first cooling layer 5, the gas flow is enhanced by the impeller 53, exchanging heat with the plate heat exchanger 54 to achieve the first cooling. The cooled gas enters the second cooling layer 6, where it undergoes further heat exchange with the plate heat exchanger 62 to achieve the second cooling. The temperature sensor 63 monitors the temperature of the cooled gas; once the temperature meets the requirements, the gas is output through the outlet pipe 3.

[0051] Furthermore, by monitoring the outlet air temperature using sensor 63 and controlling the speed of the top and side fans, the heat exchanger effect of the cooling tower for air separation equipment is enhanced. The outlet air temperature can be monitored in real time by installing temperature sensors at appropriate locations on the cooling tower. The sensors convert the temperature signal into an electrical signal and transmit it to the control system. The external control system calculates the required fan speed based on the received temperature signal using an algorithm. The fan speed can be changed by adjusting the voltage or current supplied to the fan motor. The top and side fans can work independently or collaboratively to optimize airflow and heat exchange. When the outlet air temperature rises, the control system increases the fan speed to improve airflow velocity, thereby enhancing the heat exchange effect. This helps to lower the cooling water temperature more quickly and improve cooling efficiency. Precise control of the fan speed avoids unnecessary energy consumption. When the outlet air temperature is low, the fan speed can be reduced, saving energy. Real-time monitoring and control ensure that the cooling tower operates in optimal condition, helping to reduce equipment failures and downtime, and improving overall equipment stability.

[0052] After the gas to be cooled passes through the preceding cooling layer, it enters the third cooling layer 7. In the third cooling layer 7, temperature sensor 72 monitors the gas temperature in real time and feeds the data back to the external control system. Based on the feedback data, the control system adjusts the spray volume of the spray assembly 73. The cooling medium enters the spray pipe 732 through the inlet pipe 731 and is then sprayed into the gas in the form of mist or fine water droplets through the nozzles 733. The gas exchanges heat with the cooling medium, achieving further cooling. The used cooling medium is discharged through the outlet pipe 74 for recycling or treatment.

Claims

1. A cooling tower for an air separation unit, comprising: The outer shell (1) has an air supply pipe (2) on its top and an air outlet pipe (3) on one side. The outer shell (1) is characterized in that a guide component (4) is provided on the inner side of the outer shell (1). The inner side of the outer shell (1) is provided with a first cooling layer (5), the first cooling layer (5) includes a cavity two (51), the inner side of the outer shell (1) is provided with a cavity two (51), a servo motor two (52) is fixed on the outer side of the cavity two (51), and an impeller two (53) is fixed to the output end of the servo motor two (52) through a connecting rod. A plate heat exchanger one (54) is fixed on the cavity two (51). The bottom of the outer shell (1) is provided with a second cooling layer (6), the second cooling layer (6) includes a cavity three (61), the bottom of the outer shell (1) is provided with a cavity three (61), and a plate heat exchanger two (62) and a temperature sensor one (63) are fixed inside the cavity three (61).

2. A cooling tower for an air separation unit according to claim 1, characterized in that, The guide assembly (4) includes a cavity (41), the inner side of the outer shell (1) is provided with a cavity (41), a servo motor (42) is fixed on the outer side of the cavity (41), and an impeller (43) is fixed to the output end of the servo motor (42) via a connecting rod.

3. A cooling tower for an air separation unit according to claim 2, characterized in that, The first cooling layer (5) is located directly below the guide assembly (4).

4. A cooling tower for an air separation unit according to claim 1, characterized in that, The plate heat exchanger (54) is located on one side of the servo motor (52) and impeller (53).

5. A cooling tower for an air separation unit according to claim 1, characterized in that, The temperature sensor one (63) is located on the lower side of the plate heat exchanger two (62).

6. A cooling tower for an air separation unit according to claim 1, characterized in that, The second cooling layer (6) is located directly below one side of the first cooling layer (5).

7. A cooling tower for an air separation unit according to claim 1, characterized in that, The outer shell (1) is provided with reserved openings of the same diameter as the gas supply pipe (2) and the gas outlet pipe (3).

8. A cooling tower for an air separation unit according to claim 1, characterized in that, The inner side of the outer shell (1) is also fixed with a third cooling layer (7), the third cooling layer (7) includes a cavity four (71), one side of the cavity three (61) is fixed with the cavity four (71) through a pipe, at least one set of temperature sensors two (72) is provided on the cavity four (71), a spray assembly (73) is fixed on the inner side of the cavity four (71), and a water outlet pipe (74) is fixed at the bottom of the spray assembly (73).

9. A cooling tower for an air separation unit according to claim 8, characterized in that, The spray assembly (73) includes a water inlet pipe (731), the water inlet pipe (731) is fixed to the lower side of the cavity (71), the water inlet pipe (731) is fixed to the lower side of the water inlet pipe (731) and a ring-shaped spray pipe (732) is fixed to one side of the spray pipe (732) and a number of nozzles (733) are fixed to one side.

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