A low temperature cooling tower

Abstract

This application relates to a low-temperature cooling tower, belonging to the technical field of cooling equipment. It includes two tower body assemblies, a variable frequency fan assembly, an integrated circulation pipeline module, and a coordinated water distribution module. By incorporating the variable frequency fan assembly, when the cooling tower starts, the drive motor drives the shaft to rotate via bearings. The fan blades on the shaft surface then rotate at high speed, forming a stable airflow inside the outer shell. Outside air enters the tower body through the air inlet mesh on the side of the tower body assembly, exchanges heat with the internal components, and is then discharged through the top of the outer shell. The drive motor supports variable frequency adjustment, dynamically adjusting the speed based on temperature data from the temperature sensor inside the finned heat exchanger. This structure allows the fan blade speed to be adapted to actual cooling needs through variable frequency adjustment, reducing energy waste compared to a fixed-speed fan. Furthermore, the finned heat exchanger enhances heat exchange, improving cooling efficiency.

Description

Technical Field

[0001] This application relates to the field of cooling equipment technology, and in particular to a cryogenic cooling tower. Background Technology

[0002] In energy-saving control systems such as air conditioning energy-saving control and air compressor station variable frequency speed regulation, the requirements for cooling temperature and energy efficiency of circulating water are becoming increasingly stringent.

[0003] Regarding the aforementioned technologies, existing traditional cooling towers not only struggle to cool circulating water to the required low-temperature range, but also, due to the lack of intelligent speed regulation and collaborative control mechanisms, often result in energy waste or insufficient cooling in scenarios with large load fluctuations, such as variable frequency speed regulation in air compressor stations. Utility Model Content

[0004] The purpose of this application is to provide a low-temperature cooling tower that has the advantages of reducing energy waste and improving cooling efficiency, thus solving the problems mentioned in the background art.

[0005] The low-temperature cooling tower provided in this application adopts the following technical solution: it includes two tower body groups, a variable frequency fan assembly, an integrated circulation pipeline module, and a coordinated water distribution module. The variable frequency fan assembly includes a shell fixedly connected to the top of the tower body group. A support frame is fixedly connected to the inner wall side of the shell. A drive motor is fixedly installed on the top of the support frame through an mounting plate. A bearing is fixedly connected to the top of the support frame. A rotating shaft is rotatably connected inside the bearing. The top end of the rotating shaft is fixedly connected to the output shaft of the drive motor. Several fan blades are fixedly connected to the surface of the rotating shaft. A finned heat exchanger is fixedly installed inside the tower body assembly, and packing material is provided inside the tower body assembly. The integrated circulation pipeline module includes a branch pipeline fixedly connected to the top of the tower body assembly, a main pipeline fixedly connected to the bottom end of the branch pipeline, and a solenoid valve fixedly installed on the surface of the branch pipeline. The coordinated water distribution module includes a vertical pipe fixedly connected to one end of the diversion pipe, a number of horizontal pipes fixedly connected to the surface of the vertical pipe, and a number of water distribution nozzles fixedly connected to the surface of the horizontal pipes. By adopting the above technical solution and setting up a variable frequency fan assembly, when the cooling tower is started, the drive motor drives the shaft to rotate through the bearing, and then the fan blades on the surface of the shaft rotate at high speed, forming a stable airflow inside the shell. Then, the outside air enters the tower through the air inlet net on the side of the tower assembly, exchanges heat with the inside, and is then discharged through the top of the shell. The drive motor supports variable frequency adjustment and can dynamically adjust the speed according to the temperature data fed back by the temperature sensor inside the finned heat exchanger. This structure can achieve the effect of adapting the fan blade speed to the actual cooling needs through variable frequency adjustment, which reduces energy waste compared to a fixed speed fan. Then, in conjunction with the finned heat exchanger, it enhances heat exchange and improves cooling efficiency. By setting up an integrated circulation pipeline module, cooling water can enter from the main pipeline, be fixed and limited by the support base, and then be distributed to each branch pipeline. Then, the solenoid valve automatically adjusts the opening and closing degree and water flow of the branch pipeline according to the water flow data fed back by the flow monitoring valve, ensuring that the water supply of each branch pipeline is appropriate to the cooling needs of the corresponding tower group, avoiding local water excess or deficiency. This structure improves the water flow distribution accuracy and reduces water waste through the coordinated control of the solenoid valve and the flow monitoring valve. At the same time, the main pipeline is fixed by the support base to avoid interface leakage caused by water flow impact or external force shaking. By setting up a coordinated water distribution module, the diverted cooling water can enter the vertical pipes, and then be distributed to the horizontal pipes. Finally, the water is sprayed evenly or atomized by the water distribution nozzles on the surface of the horizontal pipes, covering the packing and finned heat exchanger surfaces inside the tower assembly. The water distribution nozzles are designed with multiple angles to ensure that the water flow covers all dead angles, and the spray intensity is adapted to the adsorption capacity of the packing and the heat exchange requirements of the finned heat exchanger. This structure ensures that the packing and finned heat exchanger surfaces are in full contact with the water flow through uniform water distribution, avoiding the decrease in cooling efficiency caused by local dry areas, and improving the cooling degree inside the tower. At the same time, the atomized spray reduces water flow impact, reduces packing loss, and increases the contact area between water and air, enhancing the heat exchange effect. Finally, the cooling water temperature difference is stably controlled within the design range.

[0006] Preferably, the side of the tower body assembly is provided with an air inlet net, and several side plates are fixedly connected to the side of the tower body assembly; By adopting the above technical solution and setting up air inlet nets and side plates, external air can be effectively guided into the tower assembly, improving air circulation efficiency. At the same time, the fixed connection of the side plates enhances the overall structural stability of the tower assembly.

[0007] Preferably, a support base is fixedly connected to the side of the tower body assembly, and the main pipeline is located inside the support base; By adopting the above technical solution and setting up support seats, the main pipeline can be effectively supported and fixed, avoiding pipeline displacement or deformation caused by water flow impact or external vibration, thereby ensuring the stability of cooling water delivery.

[0008] Preferably, a base frame is fixedly connected to the bottom of the tower assembly, and the base frame is made of ferrous material; By adopting the above technical solution and setting up a base frame, a stable support foundation can be provided for the tower assembly. At the same time, the selection of ferrous materials enhances the load-bearing capacity and corrosion resistance of the base frame, ensuring the structural reliability of the cooling tower during long-term operation.

[0009] Preferably, a guardrail is fixedly connected to the top of the tower assembly; By adopting the above technical solution and installing guardrails, additional safety protection can be provided for the top of the tower assembly to prevent people or objects from falling due to accidents, while also enhancing the overall safety and reliability of the tower assembly.

[0010] Preferably, a ladder is fixedly connected to the side of the tower body assembly, and the surface of the ladder is provided with an anti-slip layer; By adopting the above technical solution and setting up escalators and anti-slip layers, convenient access for operators can be provided, improving the maintainability and operational safety of the equipment. At the same time, the design of the anti-slip layer effectively increases friction, reducing the risk of slipping even in wet or water-stained conditions, and ensuring the safety and stability of personnel during use.

[0011] Preferably, a protective net is fixedly connected to the top of the outer casing; By adopting the above technical solutions and setting up protective nets, debris can be blocked from entering the fan blade area, preventing the fan blades from getting stuck or damaged. At the same time, the design of the protective nets can also effectively prevent small animals from accidentally entering the equipment, thus improving the reliability and safety of the cooling tower operation.

[0012] Preferably, a temperature sensor is installed inside the finned heat exchanger, and a flow monitoring valve is fixedly installed inside the transverse pipeline; By adopting the above technical solution and by setting temperature sensors and flow monitoring valves, it is possible to monitor the temperature changes inside the finned heat exchanger and the flow rate in the horizontal pipeline in real time.

[0013] In summary, this application includes at least one of the following beneficial technical effects: This low-temperature cooling tower, by incorporating a variable frequency fan assembly, enables the drive motor to rotate the shaft via bearings after the cooling tower starts. The fan blades on the shaft then rotate at high speed, creating a stable airflow inside the outer casing. Outside air enters the tower through the air inlet mesh on the side of the tower assembly, exchanges heat with the internal components, and is then discharged through the top of the casing. The drive motor supports variable frequency adjustment, dynamically adjusting its speed based on temperature data from the temperature sensor inside the finned heat exchanger. This structure allows the fan blade speed to be adapted to actual cooling needs through variable frequency adjustment, reducing energy waste compared to a fixed-speed fan. Furthermore, the finned heat exchanger enhances heat exchange and improves cooling efficiency.

[0014] This type of low-temperature cooling tower, through the installation of an integrated circulation pipeline module, allows cooling water to enter from the main pipeline, be fixed and limited by the support base, and then be distributed to each branch pipeline. Then, the solenoid valve automatically adjusts the opening and closing degree and water flow of the branch pipeline according to the water flow data fed back by the flow monitoring valve, ensuring that the water supply of each branch pipeline is appropriate to the cooling needs of the corresponding tower assembly, avoiding local over- or under-water. This structure improves the accuracy of water flow distribution and reduces water waste through the coordinated control of the solenoid valve and the flow monitoring valve. At the same time, the main pipeline is fixed by the support base to prevent interface leakage caused by water flow impact or external force shaking.

[0015] This low-temperature cooling tower, through the installation of a coordinated water distribution module, allows the diverted cooling water to enter the vertical pipes, and then be distributed to the horizontal pipes. Finally, the water is sprayed evenly or atomized by water distribution nozzles on the surface of the horizontal pipes, covering the packing and finned heat exchanger surfaces inside the tower assembly. The multi-angle design of the water distribution nozzles ensures that the water flow covers all dead angles, and the spray intensity is adapted to the adsorption capacity of the packing and the heat exchange requirements of the finned heat exchanger. This structure ensures that the packing and finned heat exchanger surfaces are in full contact with the water flow through uniform water distribution, avoiding the decrease in cooling efficiency caused by local dry areas, and improving the cooling degree inside the tower. At the same time, the atomized spray reduces water flow impact, reduces packing loss, and increases the contact area between water and air, enhancing the heat exchange effect. Finally, the cooling water temperature difference is stably controlled within the design range. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall front view structure of this application; Figure 2 for Figure 1 Schematic diagram of the front cross-sectional structure of the central tower assembly; Figure 3 This is a top view of the integrated circulation pipeline module and the coordinated water distribution module in this application. Figure 4 This is a front view structural diagram of the variable frequency fan assembly in this application; Figure 5 for Figure 1 Enlarged structural diagram at point A in the middle; Figure 6 for Figure 1 Enlarged structural diagram at point B.

[0017] In the picture: 1. Tower body assembly; 2. Variable frequency fan assembly; 201. Shell; 202. Support frame; 203. Drive motor; 204. Bearing; 205. Shaft; 206. Fan blade; 3. Integrated circulation pipeline module; 301. Branch pipeline; 302. Main pipeline; 303. Solenoid valve; 4. Air inlet screen; 5. Side plate; 6. Support base; 7. Base frame; 8. Mounting railing; 9. Ladder; 10. Finned heat exchanger; 11. Packing; 12. Coordinated water distribution module; 1201. Vertical pipeline; 1202. Horizontal pipeline; 1203. Water distribution nozzle; 13. Anti-slip layer; 14. Protective net. Detailed Implementation

[0018] The following is in conjunction with the appendix Figure 1 -Appendix Figure 6 This application will be described in further detail below.

[0019] Example 1: A low-temperature cooling tower, referring to Figure 1 , Figure 2 , Figure 3 and Figure 4 It includes two tower body groups 1, a variable frequency fan assembly 2, an integrated circulation pipeline module 3, and a collaborative water distribution module 12. The variable frequency fan assembly 2 includes a shell 201 fixedly connected to the top of the tower body group 1. A support frame 202 is fixedly connected to the inner wall side of the shell 201. A drive motor 203 is fixedly installed on the top of the support frame 202 through a mounting plate. A bearing 204 is fixedly connected to the top of the support frame 202. A rotating shaft 205 is rotatably connected inside the bearing 204. The top end of the rotating shaft 205 is fixedly connected to the output shaft of the drive motor 203. Several fan blades 206 are fixedly connected to the surface of the rotating shaft 205. A finned heat exchanger 10 is fixedly installed inside the tower body assembly 1, and packing material 11 is provided inside the tower body assembly 1. The integrated circulation pipeline module 3 includes a branch pipeline 301 fixedly connected to the top of the tower body assembly 1, a main pipeline 302 fixedly connected to the bottom end of the branch pipeline 301, and a solenoid valve 303 fixedly installed on the surface of the branch pipeline 301. The coordinated water distribution module 12 includes a vertical pipe 1201 fixedly connected to one end of the branch pipe 301. Several horizontal pipes 1202 are fixedly connected to the surface of the vertical pipe 1201, and several water distribution nozzles 1203 are fixedly connected to the surface of the horizontal pipes 1202. By setting up the variable frequency fan assembly 2, when the cooling tower starts, the drive motor 203 drives the rotating shaft 205 to rotate via the bearing 204. Then, the fan blades 206 on the surface of the rotating shaft 205 rotate at high speed, forming a stable airflow inside the outer casing 201, followed by external... The ambient air enters the tower body through the air inlet net 4 on the side of the tower body assembly 1, exchanges heat with the interior, and is then discharged through the top of the outer shell 201. Subsequently, the drive motor 203 supports frequency conversion regulation, which can dynamically adjust the speed according to the temperature data fed back by the temperature sensor inside the finned heat exchanger 10. This structure can achieve the effect of adapting the speed of the fan blade 206 to the actual cooling needs through frequency conversion regulation. Compared with a fixed speed fan, it reduces energy waste. Then, in conjunction with the finned heat exchanger 10, it enhances heat exchange and improves cooling efficiency. By setting up an integrated circulation pipeline module 3, cooling water can enter from the main pipeline 302, be fixed and limited by the support seat 6, and then be distributed to each branch pipeline 301. Then, the solenoid valve 303 automatically adjusts the opening and closing degree and water flow of the branch pipeline 301 according to the water flow data fed back by the flow monitoring valve, ensuring that the water supply of each branch pipeline 301 is appropriate to the cooling demand of the corresponding tower body group 1, avoiding local water excess or deficiency. This structure improves the water flow distribution accuracy and reduces water waste through the coordinated control of the solenoid valve 303 and the flow monitoring valve. At the same time, the main pipeline 302 is fixed by the support seat 6 to prevent the pipeline from leaking at the interface due to water flow impact or external force shaking. By setting up a coordinated water distribution module 12, the diverted cooling water can enter the vertical pipe 1201, and then be distributed to each horizontal pipe 1202 through the vertical pipe 1201. Finally, the water is sprayed by the water distribution nozzles 1203 on the surface of the horizontal pipes 1202 in an atomized or uniform spray manner to cover the packing 11 and the surface of the finned heat exchanger 10 inside the tower assembly 1. At the same time, the water distribution nozzles 1203 adopt a multi-angle design to ensure that the water flow covers all dead angles, and the spray intensity is adapted to the adsorption capacity of the packing 11 and the heat exchange requirements of the finned heat exchanger 10. This structure ensures that the packing 11 and the surface of the finned heat exchanger 10 are in full contact with the water flow through uniform water distribution, avoiding the decrease in cooling efficiency caused by local dry areas, improving the cooling degree inside the tower. At the same time, the atomized spray reduces the water flow impact, reduces the loss of the packing 11, and increases the contact area between water and air, enhancing the heat exchange effect. Finally, the cooling water temperature difference is stably controlled within the design range.

[0020] Please see Figure 2The side of the tower body assembly 1 is provided with an air inlet net 4, and several side plates 5 are fixedly connected to the side of the tower body assembly 1. By setting the air inlet net 4 and the side plates 5, the external air can be effectively guided into the interior of the tower body assembly 1, improving the air circulation efficiency. At the same time, the fixed connection of the side plates 5 enhances the overall structural stability of the tower body assembly 1. The side of the tower body assembly 1 is fixedly connected with a support base 6, and the main pipe 302 is located inside the support base 6. By setting the support base 6, the main pipe 302 can be effectively supported and fixed, avoiding pipe displacement or deformation due to water flow impact or external vibration, thereby ensuring the stability of cooling water delivery.

[0021] Please see Figure 1 The bottom of the tower body assembly 1 is fixedly connected to a base frame 7, which is made of ferrous material. By setting the base frame 7, a stable support foundation can be provided for the tower body assembly 1. At the same time, the use of ferrous material enhances the load-bearing capacity and corrosion resistance of the base frame 7, ensuring the structural reliability of the cooling tower during long-term operation. The top of the tower body assembly 1 is fixedly connected to a guardrail 8. By setting the guardrail 8, additional safety protection can be provided for the top of the tower body assembly 1 to prevent people or objects from falling due to accidents, while also enhancing the overall safety and reliability of the tower body assembly 1.

[0022] Please see Figure 1 , Figure 2 , Figure 5 and Figure 6 A ladder 9 is fixedly connected to the side of the tower body 1. The surface of the ladder 9 is provided with an anti-slip layer 13. By setting the ladder 9 and the anti-slip layer 13, a convenient passage for operators to go up and down can be provided, improving the maintainability and operational safety of the equipment. At the same time, the design of the anti-slip layer 13 effectively increases the friction, reducing the risk of slipping even in wet or water-stained conditions, ensuring the safety and stability of personnel during use. A protective net 14 is fixedly connected to the top of the outer shell 201. By setting the protective net 14, debris can be blocked from entering the fan blade 206 area, preventing the fan blade 206 from getting stuck or damaged. At the same time, the design of the protective net 14 can also effectively prevent small animals from accidentally entering the equipment, improving the reliability and safety of the cooling tower operation. A temperature sensor is installed inside the finned heat exchanger 10, and a flow monitoring valve is fixedly installed inside the transverse pipe 1202. By setting the temperature sensor and the flow monitoring valve, the temperature change inside the finned heat exchanger 10 and the flow in the transverse pipe 1202 can be monitored in real time.

[0023] The implementation principle of this application embodiment is as follows: First, the staff climbs to the top of the equipment through the ladder 9 with anti-slip layer 13 on the side of the tower body assembly 1. Under the protection of the installed guardrail 8, the staff completes the preliminary inspection. After confirming that there are no abnormalities in each component, the cooling tower is started. At this time, the base frame 7 of the iron material at the bottom of the tower body assembly 1 has firmly supported the entire equipment to prevent displacement or tilting during operation. Subsequently, the protective net 14 on the top of the outer shell 201 is also in a closed state to prevent debris or small animals from entering the fan blade 206 area. Then, the variable frequency fan assembly 2 starts to work, the drive motor 203 on the top of the support frame 202 is powered on and runs, its output shaft drives the rotating shaft 205 to rotate, and then the fan blades 206 on the surface of the rotating shaft 205 rotate at high speed, forming a downward stable airflow inside the outer shell 201. At the same time, the air inlet net 4 on the side of the tower body assembly 1 opens and the side plate 5 closes the side, guiding the outside air to enter the interior of the tower body assembly 1 after being filtered by the air inlet net 4, providing an airflow basis for subsequent heat exchange; Then, the integrated circulation pipeline module 3 starts to supply water, and cooling water flows in from the main pipeline 302. The support seat 6 on the side of the tower body 1 then fixes and limits the main pipeline 302 to prevent the pipeline from shaking due to water flow impact. Then, the cooling water is distributed from the main pipeline 302 to each branch pipeline 301. The flow monitoring valve inside the transverse pipeline 1202 collects water flow data in real time and transmits the data to the control system. Subsequently, the control system automatically adjusts the opening and closing degree of the pipeline according to the data command of the solenoid valve 303 on the surface of the branch pipeline 301 to ensure that the water supply of each branch pipeline 301 is suitable for the cooling needs of the tower body 1. Subsequently, the coordinated water distribution module 12 achieves uniform water distribution. The diverted cooling water enters the vertical pipe 1201, and is then distributed from the vertical pipe 1201 to each horizontal pipe 1202. Finally, through the multi-angle water distribution nozzles 1203 on the surface of the horizontal pipes 1202, the water is sprayed in an atomized manner to cover the packing 11 and the surface of the finned heat exchanger 10 inside the tower assembly 1. Then, the spray intensity of the water distribution nozzles 1203 is adapted to the adsorption capacity of the packing 11 to ensure that the water flow covers the packing without dead corners, while avoiding excessive water flow impact that could cause damage to the packing 11. Subsequently, the finned heat exchanger 10 works in conjunction with the airflow and water flow to complete heat exchange. The temperature sensor inside the finned heat exchanger 10 monitors the heat exchange temperature in real time and feeds the data back to the frequency conversion control system of the drive motor 203. Then, the air entering the tower comes into full contact with the atomized water flow and the finned heat exchanger 10, and after absorbing heat, it forms a hot airflow. Then, under the suction of the fan blades 206, it is discharged through the top of the outer shell 201. If the temperature sensor detects that the temperature is higher than the set threshold, the control system will automatically increase the speed of the drive motor 203 to accelerate the airflow circulation speed, and at the same time adjust the solenoid valve 303 to increase the water supply and enhance the cooling effect. If the temperature is lower than the threshold, the speed of the drive motor 203 will be reduced and the water supply will be reduced to achieve energy-saving operation. Finally, throughout the entire cooling process, all auxiliary structures continue to function. The air inlet screen 4 continuously filters air impurities to prevent clogging of the packing 11 or affecting the performance of the finned heat exchanger 10. The side plate 5 ensures the airflow sealing inside the tower, preventing airflow leakage and reducing heat exchange efficiency. Then, the protective net 14 always blocks external debris to ensure the stable operation of the fan blades 206. When the cooling task is completed or maintenance is required, staff can safely go up and down via the ladder 9 and shut down the equipment under the protection of the guardrail 8, thus completing one complete cooling cycle.

Claims

1. A low-temperature cooling tower, comprising two tower body assemblies (1), a variable frequency fan assembly (2), an integrated circulation pipeline module (3), and a coordinated water distribution module (12), characterized in that: The variable frequency fan assembly (2) includes a housing (201) fixedly connected to the top of the tower assembly (1). A support frame (202) is fixedly connected to the inner wall side of the housing (201). A drive motor (203) is fixedly installed on the top of the support frame (202) via an mounting plate. A bearing (204) is fixedly connected to the top of the support frame (202). A rotating shaft (205) is rotatably connected inside the bearing (204). The top end of the rotating shaft (205) is fixedly connected to the output shaft of the drive motor (203). Several fan blades (206) are fixedly connected to the surface of the rotating shaft (205). A finned heat exchanger (10) is fixedly installed inside the tower body assembly (1), and packing (11) is provided inside the tower body assembly (1). The integrated circulation pipeline module (3) includes a branch pipeline (301) fixedly connected to the top of the tower body group (1), the bottom end of the branch pipeline (301) is fixedly connected to the main pipeline (302), and a solenoid valve (303) is fixedly installed on the surface of the branch pipeline (301). The coordinated water distribution module (12) includes a vertical pipe (1201) fixedly connected to one end of the diversion pipe (301), and a number of horizontal pipes (1202) are fixedly connected to the surface of the vertical pipe (1201), and a number of water distribution nozzles (1203) are fixedly connected to the surface of the horizontal pipes (1202).

2. A low-temperature cooling tower according to claim 1, characterized in that: The side of the tower body assembly (1) is provided with an air inlet net (4), and several side plates (5) are fixedly connected to the side of the tower body assembly (1).

3. A low-temperature cooling tower according to claim 1, characterized in that: The side of the tower assembly (1) is fixedly connected to a support base (6), and the main pipeline (302) is located inside the support base (6).

4. A low-temperature cooling tower according to claim 1, characterized in that: The bottom of the tower assembly (1) is fixedly connected to a base frame (7), which is made of ferrous material.

5. A low-temperature cooling tower according to claim 1, characterized in that: The top of the tower assembly (1) is fixedly connected to a guardrail (8).

6. A low-temperature cooling tower according to claim 1, characterized in that: The side of the tower assembly (1) is fixedly connected to a ladder (9), and the surface of the ladder (9) is provided with an anti-slip layer (13).

7. A low-temperature cooling tower according to claim 1, characterized in that: A protective net (14) is fixedly connected to the top of the outer shell (201).

8. A low-temperature cooling tower according to claim 1, characterized in that: The finned heat exchanger (10) is equipped with a temperature sensor, and the transverse pipeline (1202) is equipped with a flow monitoring valve.

Images