A temperature control system based on multi-stage vortex tube cold and heat separation and waste heat recovery

Abstract

The utility model provides a kind of temperature control system based on multistage vortex tube cold and hot separation and waste heat recovery, it is related to communication computer lab refrigeration technical field.The system includes air conditioner, compression drying all -in -one and phase change energy storage device are respectively installed in computer lab, air conditioner and phase change energy storage device intercommunication;The first high pressure outlet of compression drying all -in -one and the inlet of first stage vortex tube intercommunication, the cold end of first stage vortex tube and the inlet of compression drying all -in -one intercommunication;The second high pressure outlet of compression drying all -in -one and the inlet of second stage vortex tube intercommunication, the cold end of second stage vortex tube and computer lab, phase change energy storage device intercommunication, the hot end of first stage vortex tube, second stage vortex tube and computer lab outside and compression drying all -in -one in drying regeneration module intercommunication.The application can save occupied space, realize multistage vortex tube series refrigeration, combine air conditioner and phase change energy storage device, effectively improve cold capacity and improve cold capacity utilization, preheating utilization, reach the purpose of energy saving.

Description

Technical Field

[0001] This utility model relates to the field of communication equipment room cooling technology, and in particular to a temperature control system based on multi-stage vortex tube cold and heat separation and waste heat recovery. Background Technology

[0002] Traditional vortex tubes only achieve single-stage hot and cold separation, resulting in limited cold-end temperatures of -30℃ to -40℃, which is insufficient to meet the high cooling requirements of communication equipment rooms. Traditional refrigeration systems rely on multi-stage compressors and external drying equipment, which are bulky and energy-intensive, making them unsuitable for space-constrained communication equipment rooms. Furthermore, current cold storage technologies face high daytime cooling pressures. Existing systems often directly discharge high-temperature gas from the hot end of the vortex tube, leading to energy waste.

[0003] Therefore, there is an urgent need for a temperature control system based on multi-stage vortex tube cold and heat separation and waste heat recovery that can save space, realize multi-stage vortex tube series refrigeration, effectively improve the cooling capacity and the utilization rate of cooling capacity and preheating utilization, and achieve energy saving. Utility Model Content

[0004] The purpose of this invention is to provide a temperature control system based on multi-stage vortex tube cold and heat separation and waste heat recovery, which solves the technical problems of high refrigeration pressure and energy waste in the prior art. The various technical effects of the preferred technical solutions provided by this invention are detailed below.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] This utility model provides a temperature control system based on multi-stage vortex tube thermal separation and waste heat recovery, installed in a computer room, comprising:

[0007] An air conditioner, a compressor dryer, and a phase change energy storage device are provided. The air conditioner, the compressor dryer, and the phase change energy storage device are respectively installed in the machine room, and the air conditioner is connected to the phase change energy storage device.

[0008] The first high-pressure output end of the integrated compressor dryer is connected to the inlet end of the first-stage vortex tube, and the cold end of the first-stage vortex tube is connected to the inlet end of the integrated compressor dryer.

[0009] The second high-pressure output end of the integrated compressor dryer is connected to the inlet end of the second-stage vortex tube. The cold end of the second-stage vortex tube is connected to the phase change energy storage device inside the machine room. The hot ends of the first-stage vortex tube and the second-stage vortex tube are connected to the drying and regeneration module outside the machine room and inside the integrated compressor dryer.

[0010] Preferred options also include:

[0011] The first-stage vortex tube inlet duct, pressure sensor, and pressure regulating valve are installed on the first-stage vortex tube inlet duct, which connects the first high-pressure outlet of the integrated compression dryer to the inlet of the first-stage vortex tube.

[0012] Preferred options also include:

[0013] The first-stage vortex tube cold end exhaust duct, temperature sensor and flow meter are respectively installed on the first-stage vortex tube cold end exhaust duct, which is connected between the cold end of the first-stage vortex tube and the inlet end of the integrated compression dryer.

[0014] Preferred options also include:

[0015] The second-stage vortex tube inlet duct, pressure sensor, and pressure regulating valve are installed on the second-stage vortex tube inlet duct, which connects the second high-pressure outlet of the integrated compressor and dryer to the inlet of the second-stage vortex tube.

[0016] Preferred options also include:

[0017] The second-stage vortex tube cold end direct blowing pipeline and the solenoid valve are connected. The solenoid valve is installed on the second-stage vortex tube cold end direct blowing pipeline, which is connected to the cold end of the second-stage vortex tube.

[0018] Preferred options also include:

[0019] The second-stage vortex tube cold end exhaust duct has its inlet connected between the solenoid valve and the cold end of the second-stage vortex tube, and its outlet connected to the phase change energy storage device.

[0020] Preferred options also include:

[0021] The first-stage vortex tube hot-end exhaust duct and the second-stage vortex tube hot-end exhaust duct are connected at their respective ends. The first end of the first-stage vortex tube hot-end exhaust duct is connected to the hot end of the first-stage vortex tube, the first end of the second-stage vortex tube hot-end exhaust duct is connected to the hot end of the second-stage vortex tube, and the second end of the first-stage vortex tube hot-end exhaust duct is connected to the second end of the second-stage vortex tube hot-end exhaust duct.

[0022] Preferred options also include:

[0023] The second-stage vortex tube hot-end heating pipeline and the hot-end diversion valve are installed on the second-stage vortex tube hot-end heating pipeline. The first end of the second-stage vortex tube hot-end heating pipeline is connected to the second-stage vortex tube hot-end exhaust pipeline, and the second end of the second-stage vortex tube hot-end heating pipeline is connected to the integrated compression dryer and supplies heat to the drying and regeneration module.

[0024] The technical solution provided by this utility model adopts an integrated compression and drying machine, which effectively saves internal space in the computer room. By connecting two stages of vortex tubes in series, the low-temperature airflow output from the cold end of the first-stage vortex tube is compressed a second time by the integrated compression and drying machine before being input into the second-stage vortex tube, further cooling it to below -50℃. This breaks through the temperature limit of a single-stage vortex tube, and the cold-end cooling efficiency is increased by 40% to 60%, exceeding the temperature limit of traditional single-stage vortex tubes. This meets the requirements of high-heat-density communication computer rooms for ultra-low temperature cold sources, and is especially suitable for extreme high-temperature scenarios such as 5G base stations and data centers. The cold end of the second-stage vortex tube corresponds to the key heat-generating area in the computer room, reducing mixing with hot air. This method improves the utilization rate of cooling capacity. This reduces energy consumption by 35%, avoiding ineffective refrigeration cycles. The air conditioner, an existing refrigeration unit in the computer room, serves as an auxiliary refrigeration device for the phase change energy storage unit. During off-peak hours at night, the cold end of the second-stage vortex tube generates cold air that blows towards the phase change energy storage unit. The phase change material in the unit absorbs and solidifies the cold air, storing it. During peak daytime hours, the air conditioner releases this stored cold air to lower the computer room temperature and reduce peak daytime energy consumption. A portion of the high-temperature airflow from the hot ends of the first and second-stage vortex tubes is directly discharged outside the computer room, while another portion connects to the drying and regeneration module in the integrated compressor dryer. This increases waste heat utilization from less than 50% to over 70%, significantly reducing drying and regeneration energy consumption. This application saves space, achieves multi-stage vortex tube series refrigeration, and, combined with air conditioning and the phase change energy storage unit, effectively increases cooling capacity and improves cooling capacity utilization and preheating utilization, thus achieving energy savings. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic cross-sectional view of the computer room from the main view direction of this utility model;

[0027] Figure 2 This is a schematic diagram of the overall connection state of this utility model.

[0028] In the diagram: 1. Second-stage vortex tube; 2. First-stage vortex tube; 3. Pressure regulating valve; 4. Pressure sensor; 5. Temperature sensor; 6. Flow meter; 7. Pressure relief valve; 8. Hot-end diverter valve; 9. Second-stage vortex tube hot-end exhaust duct; 10. Second-stage vortex tube inlet duct; 11. Second-stage vortex tube hot-end heating duct; 12. First-stage vortex tube inlet duct; 13. Air conditioner; 14. First-stage vortex tube cold-end exhaust duct; 15. Compression dryer; 16. Connecting pipes; 17. Second-stage vortex tube cold-end exhaust duct; 18. Second-stage vortex tube cold-end direct blowing duct; 19. Phase change energy storage device; 20. First-stage vortex tube hot-end exhaust duct; 21. Exhaust port; 22. Solenoid valve; 23. Machine room. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] refer to Figure 1-2 A specific embodiment of this utility model provides a temperature control system based on multi-stage vortex tube thermal separation and waste heat recovery, installed in the computer room 23, comprising:

[0031] Air conditioner 13, compressor dryer 15, phase change energy storage device 19, air conditioner 13, compressor dryer 15 and phase change energy storage device 19 are respectively installed in machine room 23, and air conditioner 13 and phase change energy storage device 19 are connected through connecting pipe 16.

[0032] The first high-pressure outlet of the first-stage vortex tube 2 is connected to the inlet of the first-stage vortex tube 2, and the cold end of the first-stage vortex tube 2 is connected to the inlet of the compression dryer 15.

[0033] The second high-pressure outlet of the second-stage vortex tube 1 is connected to the inlet of the second-stage vortex tube 15, and the cold end of the second-stage vortex tube 1 is connected to the phase change energy storage device 19 inside the machine room 23.

[0034] Traditional vortex tubes only achieve single-stage hot and cold separation, resulting in limited cold-end temperatures of -30℃ to -40℃, which is insufficient to meet the high cooling requirements of communication equipment rooms. Traditional refrigeration systems rely on multi-stage compressors and external drying equipment, which are bulky and energy-intensive, making them unsuitable for space-constrained communication equipment rooms. Furthermore, current cold storage technologies face high daytime cooling pressures. Existing systems often directly discharge high-temperature gas from the hot end of the vortex tube, leading to energy waste. In this application, a combined compressor-dryer 15 is used, effectively saving internal space in the equipment room 23. By connecting two stages of vortex tubes in series, the low-temperature airflow output from the cold end of the first-stage vortex tube 2 is compressed a second time by the combined compressor-dryer 15 and then input into the second-stage vortex tube 1, further cooling it to below -50℃. This breaks through the temperature limit of a single-stage vortex tube, and the cold-end cooling efficiency is increased by 40%–60%, exceeding the temperature limit of traditional single-stage vortex tubes. This meets the requirements of high-heat-density communication equipment rooms for ultra-low temperature cold sources, and is especially suitable for extreme high-temperature scenarios such as 5G base stations and data centers. The cold end of the second-stage vortex tube 1 corresponds to the key heat-generating area within the equipment room 23, reducing mixing with hot air. This method increases the cooling capacity utilization rate by 35% and avoids ineffective cooling cycles. The system comprises a ring; wherein, air conditioner 13 is the original refrigeration equipment in the computer room 23, and serves as an auxiliary refrigeration device for phase change energy storage device 19. During off-peak hours at night, the cold end of the second-stage vortex tube 1 generates cold air that blows towards the phase change energy storage device 19. The phase change material in the phase change energy storage device 19 absorbs and solidifies to store the cold energy. During peak hours in the daytime, the air conditioner 13 releases the stored cold energy to reduce the temperature of the computer room 23 and reduce peak daytime energy consumption. A portion of the high-temperature airflow from the hot ends of the first-stage vortex tube 2 and the second-stage vortex tube 1 is directly discharged outside the computer room 23, while another portion of the high-temperature airflow is connected to the drying and regeneration module in the integrated compressor-dryer 15. The waste heat utilization rate is increased from less than 50% to more than 70%, significantly reducing drying and regeneration energy consumption. This application can save space, realize multi-stage vortex tube series refrigeration, and, combined with air conditioner 13 and phase change energy storage device 19, effectively increase the cooling capacity and the utilization rate of the cooling capacity, thereby achieving the purpose of energy saving.

[0035] In this application, the integrated compressor-dryer 15 includes an air compressor, a multi-stage filter, and a dual-tower drying device. A drying and regeneration module is installed within the dual-tower drying device. The dual-tower drying device continuously dehumidifies the gas by alternating the operation of the internal adsorbent, preventing humid air from freezing inside the vortex tube. High-temperature airflow is delivered to the drying and regeneration module, flows through the adsorbent layer within the dual-tower drying device, and utilizes residual heat to desorb moisture from the adsorbent, completing desiccant regeneration. The integrated compressor-dryer 15 of this application adopts a conventional multi-stage compression structure, enabling multiple compressions to gradually increase gas pressure. The drying and regeneration module and the dual-tower drying device can be existing regenerative dual-tower dryers, capable of alternating moisture adsorption and releasing moisture through high-temperature gas.

[0036] Further optimizations to the plan include:

[0037] The first-stage vortex tube air inlet pipe 12, pressure sensor 4 and pressure regulating valve 3 are installed on the first-stage vortex tube air inlet pipe 12. The first-stage vortex tube air inlet pipe 12 is connected between the first high-pressure outlet end of the integrated compressor and dryer 15 and the inlet end of the first-stage vortex tube 2.

[0038] Further optimizations to the plan include:

[0039] The first-stage vortex tube cold end exhaust duct 14, temperature sensor 5 and flow meter 6 are respectively installed on the first-stage vortex tube cold end exhaust duct 14, which is connected between the cold end of the first-stage vortex tube 2 and the inlet end of the integrated compressor and dryer 15.

[0040] Temperature sensor 5 is an infrared sensor used to monitor the airflow temperature at the outlet of the first-stage vortex tube 2 and the ambient temperature inside the machine room 23; based on real-time temperature, humidity, and pressure sensor data,

[0041] This system employs a fuzzy PID intelligent control algorithm (intelligent system), combining the precision of traditional PID control with the adaptability of fuzzy logic to dynamically adjust the cold flow rate, hot-end split ratio, and cooling capacity release strategy. This avoids sensor failure caused by low-temperature environments, improving the system's energy efficiency ratio by 20%-30% and solving the problems of large energy efficiency fluctuations and poor adaptability under traditional fixed-parameter control. Flow meter 6 measures the airflow at the cold end of the first-stage vortex tube 2 in real time, and calculates the actual cooling capacity based on temperature data to optimize the vortex tube's cold flow rate and compressor power.

[0042] Further optimizations to the plan include:

[0043] The second-stage vortex tube air inlet pipe 10, pressure sensor 4 and pressure regulating valve 3 are installed on the second-stage vortex tube air inlet pipe 10. The second-stage vortex tube air inlet pipe 10 is connected between the second high-pressure outlet of the integrated compressor and dryer 15 and the inlet of the second-stage vortex tube 1.

[0044] Pressure regulating valve 3 is an electrically adjustable valve, installed at the inlet of the first-stage vortex tube 2 and the second-stage vortex tube 1. It is used to control the gas pressure entering the vortex tube. It automatically opens and closes according to the changes in pipeline pressure, balances the compressor output pressure and the vortex tube demand pressure, and prevents the equipment from being damaged by excessive pressure or the refrigeration from failing due to excessive pressure.

[0045] Pressure sensor 4 is located in the air inlet duct and the heating duct of the drying and regeneration module. It monitors the pressure fluctuations at the inlet of the vortex tube and the heating duct in real time, providing data to the controller in the computer room 23 to dynamically adjust the opening of the pressure regulating valve and avoid pressure imbalance that leads to a decrease in cooling efficiency.

[0046] Further optimizations to the plan include:

[0047] The second-stage vortex tube cold end direct blowing pipeline 18 and the solenoid valve 22 are connected. The solenoid valve 22 is installed on the second-stage vortex tube cold end direct blowing pipeline 18, which is connected to the cold end of the second-stage vortex tube 1.

[0048] The second-stage vortex tube cold end exhaust pipe 17 has its inlet connected between the solenoid valve 22 and the cold end of the second-stage vortex tube 1, and its outlet connected to the phase change energy storage device 19.

[0049] Further optimizations to the plan include:

[0050] The first-stage vortex tube hot-end exhaust duct 20 and the second-stage vortex tube hot-end exhaust duct 9 are connected. The first end of the first-stage vortex tube hot-end exhaust duct 20 is connected to the hot end of the first-stage vortex tube 2. The first end of the second-stage vortex tube hot-end exhaust duct 9 is connected to the hot end of the second-stage vortex tube 1. The second end of the first-stage vortex tube hot-end exhaust duct 20 is connected to the second end of the second-stage vortex tube hot-end exhaust duct 9.

[0051] Exhaust vent 21 is the outlet of the second-stage vortex tube hot end exhaust duct 9, located outside the machine room 23.

[0052] Further optimizations to the plan include:

[0053] The second-stage vortex tube hot-end heating pipe 11 and the hot-end diverter valve 8 are installed on the second-stage vortex tube hot-end heating pipe 11. The first end of the second-stage vortex tube hot-end heating pipe 11 is connected to the second-stage vortex tube hot-end exhaust pipe 9, and the second end of the second-stage vortex tube hot-end heating pipe 11 is connected to the integrated compressor dryer 15 and provides heat for the drying and regeneration module.

[0054] The hot-end diversion valve 8 is located at the inlet of the desiccant regeneration control pipeline (i.e., the inlet of the second-stage vortex tube hot-end heating pipeline 11). It is activated when the waste heat temperature of the drying regeneration module is insufficient for ineffective circulation. The fuzzy PID intelligent control algorithm dynamically adjusts the hot-end airflow distribution ratio according to the waste heat temperature to achieve a balance between waste heat utilization and emission.

[0055] The pressure relief valve 7 is installed on the exhaust pipe 9 at the hot end of the second-stage vortex tube and is located between the heating pipe 11 at the hot end of the second-stage vortex tube and the hot end of the second-stage vortex tube 1.

[0056] The pressure relief valve 7 is a mechanical safety valve, installed at the bend of the exhaust pipe 9 at the hot end of the second-stage vortex tube. It is used to release overpressure gas in the pipeline in an emergency to protect the safety of the system structure. Waste is discharged directly through the pressure relief valve 7 to control the emission ratio and avoid thermal pollution. Part of the hot end airflow is delivered to the built-in drying and regeneration module of the integrated compressor and dryer 15 to replace the traditional electric heating dryer, saving 30%-50% of energy.

[0057] In existing solutions, hot and cold airflows easily mix (e.g., air conditioner vents blow directly onto the hot end of the equipment), creating a "false low-temperature environment" that reduces cooling efficiency. Furthermore, the lack of intelligent control methods prevents dynamic adjustment of the hot and cold airflow distribution ratio based on the temperature and humidity of the computer room 23, leading to energy waste. This application employs dynamic control of the hot and cold end distribution of the vortex tube: based on temperature sensor data from the computer room 23, the system uses an existing fuzzy PID intelligent control algorithm to adjust the cold flow rate and hot end airflow split ratio of the first-stage vortex tube 2 in real time; cooling efficiency is dynamically optimized with load, improving the system's energy efficiency ratio by 20%-30%.

[0058] The hot-end tube in this application is made of metal and its main function is to transmit the hot airflow generated in the vortex tube (the first-stage vortex tube 2 and the second-stage vortex tube 1 are collectively referred to as the vortex tube), and to transfer some of the high-temperature waste heat to the drying and regeneration module, while the remaining heat is discharged from the machine room. The cold-end tube is made of metal and has good thermal conductivity and structural stability. It is responsible for leading out the cold airflow generated in the vortex tube, fixing the flow path of the cold airflow, and ensuring that the cold airflow flows from the vortex tube to the compressor or the machine room. The unused high-temperature gas from the hot end is safely discharged to the outside of the machine room 23 through the exhaust port 21.

[0059] The operating principle of this application is as follows:

[0060] 1. Air compression and two-stage vortex tube refrigeration

[0061] After the system starts up, the integrated compressor-dryer 15 begins operation. Hot air from the machine room 23 enters the integrated compressor-dryer 15 through the return air system, passing through multiple filters to remove dust and impurities. The air is then pressurized by the built-in air compressor to the pressure required by the vortex tube. Simultaneously, the dual-tower dryers continuously dehumidify by alternating adsorbents to ensure dry air. Humidity sensors inside the dual-tower dryers monitor air humidity. When humidity exceeds the standard, the intelligent system automatically switches drying towers and initiates the adsorbent regeneration program. The first-stage vortex tube inlet duct 12 is equipped with a pressure sensor 4 to monitor the inlet pressure in real time, dynamically adjusting the air compressor power in conjunction with the pressure regulating valve 3 to ensure stable output pressure. When a decrease in pressure is detected, the air compressor power is increased, and vice versa.

[0062] The dried high-pressure air enters the nozzle of the first-stage vortex tube 2 through the inlet duct 12, where it undergoes hot-cold separation within the vortex chamber. The dried high-pressure air forms a high-speed rotating airflow through the nozzle. Within the vortex chamber, this high-speed rotating airflow is subjected to centrifugal force. The hotter gas, due to its lower density and greater centrifugal force, is thrown towards the periphery of the vortex tube, forming the outer hot airflow. The colder gas, due to its higher density and relatively smaller centrifugal force, concentrates in the central region of the vortex tube, forming the inner cold airflow. This cold airflow flows along the central axis of the vortex tube towards the cold end, passing through an internal separation orifice plate. This orifice plate acts as a guide, ensuring the cold airflow flows smoothly to the cold end outlet. The high-pressure air separates the hot and cold airflows within the vortex chamber through centrifugal effect.

[0063] The high-temperature airflow at the hot end is discharged along the pipe wall. A temperature sensor 5 is installed at the outlet of the first-stage vortex tube 2. When the residual heat temperature is detected to be up to standard, the hot end diversion valve 8 is triggered to direct part of the airflow to the desiccant regeneration module.

[0064] After the cold-end low-temperature airflow is discharged through the central orifice plate, its status is synchronously monitored by the temperature sensor 5 and pressure sensor 4 at the cold end outlet of the first-stage vortex tube 2, and the data is fed back to the controller to dynamically adjust the opening of the solenoid valve 22 and control the timing and flow rate of the cold air return compression drying integrated machine 15 for secondary pressurization.

[0065] After secondary pressurization, the cold air enters the second-stage vortex tube 1. The pressure regulating valve 3 at the inlet of the second-stage vortex tube 1 precisely controls the intake pressure based on the data from the preceding sensor, and optimizes the vortex separation efficiency in conjunction with the real-time flow feedback from the flow meter 6. The separated ultra-low temperature cold air is output through the cold end pipe. A solenoid valve 22 is installed at the pipe branch point. At night, the controller switches to energy storage mode, and the cold air is introduced into the phase change energy storage device 19. During peak daytime electricity consumption, the air conditioner 13 releases the cold energy stored in the phase change energy storage device 19 overnight. After the cold energy is exhausted, it switches to direct blowing mode to the computer room. When the temperature of the computer room 23 rises suddenly, the air conditioner 13 releases the cold energy stored overnight, and at the same time, the vortex tube cooling starts the direct blowing mode to the computer room 23, precisely controlling the temperature of the computer room 23.

[0066] Meanwhile, the pressure relief valve 7 provides overpressure protection in the pipeline: when the pressure sensor 4 on the exhaust pipe 9 at the hot end of the second-stage vortex tube detects abnormal high pressure, the pressure relief valve 7 automatically opens to release the pressure, and the system triggers an alarm and operates at reduced frequency.

[0067] 2. Nighttime cold storage and daytime cooling supply scheduling

[0068] During off-peak electricity hours at night, the system automatically switches to energy storage mode: the solenoid valve 22 installed at the branch of the cold end pipe of the second-stage vortex tube 1 closes the air supply branch of the machine room 23 (i.e., the direct blowing pipe 18 of the cold end of the second-stage vortex tube), and opens the inlet of the phase change energy storage device 19. All the cold air generated by the second-stage vortex tube 1 is introduced into the interior of the phase change energy storage device 19, flows through the coil heat exchanger and fully exchanges heat with the phase change material, and the cold energy is stored in the form of material solidification.

[0069] Daytime peak hours:

[0070] Cooling priority: Air conditioner 13 prioritizes releasing stored cooling capacity, and the cold air is delivered to the hot zone of cabinet 23 through a mixed air duct. Temperature sensor 5 monitors the cooling capacity release progress in real time.

[0071] Seamless switching: When the sensor in the phase change energy storage device 19 detects that the phase change material has completely melted and the cooling capacity is exhausted, the controller immediately closes the energy storage inlet air supply channel (i.e., the second-stage vortex tube cold end exhaust pipe 17) and switches to the vortex tube cold air direct delivery to the machine room 23 mode to ensure continuous cooling.

[0072] Emergency Enhancement: If the temperature in computer room 23 rises suddenly and exceeds the limit, the system will simultaneously activate the energy storage cold air release and the vortex tube real-time cooling. The solenoid valve 22 will simultaneously open the second-stage vortex tube cold end exhaust pipe 17 and the second-stage vortex tube cold end direct blowing pipe 18. The phase change energy storage device 19 will blow out cold air from the air conditioner 23. The vortex tube will start the direct blowing mode in computer room 23 for cooling. The air conditioner 13 and the vortex tube will start simultaneously to enhance air supply and quickly suppress the high temperature hot spot.

[0073] 3. Waste heat recovery and drying / regeneration at the hot end

[0074] During system operation, the first-stage vortex tube 2 separates the return air from the computer room 23 into two airflows: cold and hot. The low-temperature air output from the cold end is pressurized twice and then enters the second-stage vortex tube 1 for further cooling, generating a colder airflow for cooling the computer room 23. The high-temperature airflow from the hot end of the two-stage vortex tubes (i.e., the first-stage vortex tube 2 and the second-stage vortex tube 1) merges into the hot end main pipe (i.e., the hot end exhaust pipe 9 of the second-stage vortex tube). The hot end diversion valve 8 and temperature sensor 5 installed on the hot end heating pipe 11 of the second-stage vortex tube monitor the airflow temperature in real time. When the temperature reaches the desiccant regeneration threshold, the hot-end diversion valve 8 opens the waste heat recovery channel (i.e., the second-stage vortex tube hot-end heating pipe 11). The high-temperature airflow is transported to the desiccant regeneration module through the high-temperature resistant pipe (i.e., the second-stage vortex tube hot-end heating pipe 11), flows through the adsorbent layer in the drying tower, and uses waste heat to desorb the moisture in the adsorbent, completing the desiccant regeneration. The medium- and low-temperature exhaust gas that has not reached the temperature threshold is safely discharged from the machine room 23 through the insulated exhaust pipe (i.e., the second-stage vortex tube hot-end exhaust pipe 9). The start and stop of the regeneration process are completely controlled by the hot-end diversion valve 8. After the regeneration demand is met, the hot-end diversion valve 8 automatically closes the waste heat branch (i.e., the second-stage vortex tube hot-end heating pipe 11), cuts off the hot air delivery, and avoids ineffective circulation. The pressure sensor 4 in the middle section of the pipe monitors the airflow resistance to prevent adsorbent blockage or local pressure abnormalities. The action of the hot-end diversion valve 8 is triggered by the temperature threshold, combined with pressure monitoring, to form a closed-loop energy-saving process of "waste heat recovery on demand - automatic shutdown of drying and regeneration - safe discharge of exhaust gas".

[0075] It should be noted that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., used herein to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the equipment or component 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. Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0076] In this description, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0077] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A temperature control system based on multi-stage vortex tube cold and heat separation and waste heat recovery, installed in a machine room (23), characterized in that, Comprise: Air conditioner (13), compression drying integrated machine (15), phase change energy storage device (19), the air conditioner (13), compression drying integrated machine (15) and the phase change energy storage device (19) are installed in the machine room (23) respectively, the air conditioner (13) and the phase change energy storage device (19) are communicated; First stage vortex tube (2), the first high pressure outlet of the compression drying integrated machine (15) is communicated with the inlet of the first stage vortex tube (2), and the cold end of the first stage vortex tube (2) is communicated with the inlet of the compression drying integrated machine (15); Second stage vortex tube (1), the second high pressure outlet of the compression drying integrated machine (15) is communicated with the inlet of the second stage vortex tube (1), and the cold end of the second stage vortex tube (1) is communicated with the phase change energy storage device (19) in the machine room (23), and the hot end of the first stage vortex tube (2), second stage vortex tube (1) is communicated with the drying regeneration module in the compression drying integrated machine (15) and the machine room (23) outside.

2. The temperature control system based on multi-stage vortex tube cold and heat separation and waste heat recovery according to claim 1, characterized in that, Also include: First stage vortex tube inlet air pipe (12), pressure sensor (4) and pressure regulating valve (3), the pressure regulating valve (3) and the pressure sensor (4) are installed on the first stage vortex tube inlet air pipe (12), and the first stage vortex tube inlet air pipe (12) is communicated between the first high pressure outlet of the compression drying integrated machine (15) and the inlet of the first stage vortex tube (2).

3. The temperature control system based on multi-stage vortex tube cold and heat separation and waste heat recovery according to claim 1, characterized in that, Also include: First stage vortex tube cold end exhaust pipe (14), temperature sensor (5) and flow meter (6), the temperature sensor (5) and the flow meter (6) are installed on the first stage vortex tube cold end exhaust pipe (14) respectively, and the first stage vortex tube cold end exhaust pipe (14) is communicated between the cold end of the first stage vortex tube (2) and the inlet of the compression drying integrated machine (15).

4. The temperature control system based on multi-stage vortex tube cold and heat separation and waste heat recovery according to claim 1, characterized in that, Also include: Second stage vortex tube inlet air pipe (10), pressure sensor (4) and pressure regulating valve (3), the pressure sensor (4) and the pressure regulating valve (3) are installed on the second stage vortex tube inlet air pipe (10), and the second stage vortex tube inlet air pipe (10) is communicated between the second high pressure outlet of the compression drying integrated machine (15) and the inlet of the second stage vortex tube (1).

5. The temperature control system based on multi-stage vortex tube cold and heat separation and waste heat recovery according to claim 1, characterized in that, Also include: Second stage vortex tube cold end direct blowing pipe (18) and electromagnetic valve (22), the electromagnetic valve (22) is installed on the second stage vortex tube cold end direct blowing pipe (18), and the second stage vortex tube cold end direct blowing pipe (18) is communicated at the cold end of the second stage vortex tube (1).

6. The temperature control system based on multi-stage vortex tube cold and heat separation and waste heat recovery according to claim 5, characterized in that, Also include: Second stage vortex tube cold end exhaust pipe (17), the inlet of the second stage vortex tube cold end exhaust pipe (17) is communicated between the electromagnetic valve (22) and the cold end of the second stage vortex tube (1), and the outlet of the second stage vortex tube cold end exhaust pipe (17) is communicated with the phase change energy storage device (19).

7. The temperature control system based on multi-stage vortex tube cold and heat separation and waste heat recovery according to claim 1, characterized in that, Also include: A first stage vortex tube hot end exhaust pipe (20) and a second stage vortex tube hot end exhaust pipe (9), a first end of the first stage vortex tube hot end exhaust pipe (20) is in communication with a hot end of the first stage vortex tube (2), a first end of the second stage vortex tube hot end exhaust pipe (9) is in communication with a hot end of the second stage vortex tube (1), a second end of the first stage vortex tube hot end exhaust pipe (20) is in communication with a second end of the second stage vortex tube hot end exhaust pipe (9).

8. The temperature control system based on multi-stage vortex tube cold and heat separation and waste heat recovery according to claim 7, characterized in that, Also comprising: A second stage vortex tube hot end heating pipe (11) and a hot end shunt valve (8), the hot end shunt valve (8) is installed on the second stage vortex tube hot end heating pipe (11), a first end of the second stage vortex tube hot end heating pipe (11) is in communication on the second stage vortex tube hot end exhaust pipe (9), a second end of the second stage vortex tube hot end heating pipe (11) is in communication on the compression drying all-in-one machine (15), and supplies heat for the drying regeneration module.

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