Screw air compressor waste heat utilization system with intelligent temperature control

Abstract

The present application relates to the technical field of screw air compressor, and discloses a screw air compressor waste heat utilization system with intelligent temperature control, which comprises an intelligent temperature control module, a waste heat recovery module, a waste heat utilization module, a central control module and an auxiliary guarantee module, and the modules are detachably connected through standardized interfaces, and independently operated and cooperatively controlled.The system adopts full modular design, and splits the intelligent temperature control, waste heat recovery, waste heat utilization, central control and auxiliary guarantee into independent modules, and the modules are connected through standardized interfaces, so that the modules can be flexibly combined according to screw air compressors of different types and powers, the whole system does not need to be designed separately, the adaptation cost is reduced, and the system is popularized on a large scale; on the other hand, the modules can be independently detached, repaired and replaced without stopping the system for repair, so that the equipment downtime is reduced, the maintenance difficulty and cost are reduced, the system is convenient for later technical upgrading, and the waste heat utilization module can be added or replaced according to the heat demand.

Description

Technical Field

[0001] This invention relates to the field of screw air compressor technology, specifically to a waste heat recovery system for screw air compressors with intelligent temperature control. Background Technology

[0002] In industrial production, screw air compressors are indispensable core power equipment, widely used in mining, machinery manufacturing, textile printing and dyeing, food processing, and many other industries. Statistics show that screw air compressors account for 10%-30% of a company's total electricity consumption, making them typical high-energy-consuming equipment. However, their energy utilization efficiency is relatively low; only about 25% of the electrical energy is converted into effective compressed air energy, while the remaining 75% is lost as heat, primarily concentrated in the compressor's lubricating oil and compressed air.

[0003] If the aforementioned waste heat is not recovered and utilized, it will not only cause serious energy waste, but also increase the heat dissipation pressure on the surrounding environment. At the same time, in order to ensure the normal operation of the screw air compressor, it is necessary to force it to cool through an air-cooling or water-cooling system. This cooling process will consume additional energy, further increasing the company's equipment operation and maintenance costs.

[0004] Currently, existing technologies for utilizing waste heat from air compressors generally suffer from the following technical defects: The system has low integration, does not adopt a modular design concept, has loose connections between functional components, has a complex installation process, is inconvenient to maintain, and cannot flexibly adjust the system configuration according to different working conditions and different heating needs, resulting in poor adaptability. Insufficient temperature control accuracy, often relying on traditional manual or simple automatic control methods, makes it impossible to collect key parameters such as oil temperature and exhaust temperature during the operation of the air compressor in real time and accurately. This can easily lead to problems such as excessively low oil temperature affecting lubrication, excessively high oil temperature damaging the equipment, or insufficient waste heat recovery and unstable heat supply, thus affecting the operational stability of the air compressor and waste heat utilization system. The waste heat recovery efficiency is limited, the heat exchange components are poorly adapted to the air compressor's operating status, and the coordination and control between waste heat recovery and normal air compressor operation cannot be achieved. Some systems may even interfere with the operation of the air compressor's original cooling system, leading to an increase in the air compressor's failure rate. The system has poor versatility. For different models and power screw air compressors, a corresponding waste heat recovery system needs to be designed separately, which results in high adaptation costs and makes it difficult to achieve large-scale promotion and application.

[0005] Therefore, developing a modular, intelligent temperature-controlled, efficient and stable waste heat recovery system for screw air compressors to address the pain points of existing technologies, maximize the recovery and utilization of waste heat from air compressors, and ensure stable operation of air compressors has become a pressing technical problem for those skilled in the art. Summary of the Invention

[0006] The purpose of this invention is to provide a waste heat recovery system for screw air compressors with intelligent temperature control, in order to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A technical solution for a waste heat recovery system for a screw air compressor with intelligent temperature control includes an intelligent temperature control module, a waste heat recovery module, a waste heat recovery module, a central control module, and an auxiliary support module. The modules are detachably connected through standardized interfaces to achieve independent operation and coordinated control. The intelligent temperature control module is connected to the lubricating oil circuit and compressed air circuit of the screw air compressor. It is used to collect oil temperature, exhaust temperature and ambient temperature parameters during the operation of the air compressor in real time, and automatically adjust the temperature control actuator according to the preset threshold to maintain the air compressor operating temperature within the preset range. The waste heat recovery module is connected to the intelligent temperature control module, the air compressor lubricating oil circuit, and the compressed air circuit, and is used to recover the waste heat lost by the air compressor and transfer the waste heat to the heat exchange medium. The waste heat utilization module is connected to the waste heat recovery module and is used to receive the waste heat transferred by the heat exchange medium to realize the recovery and reuse of waste heat. The central control module is electrically connected to the intelligent temperature control module, waste heat recovery module, waste heat utilization module, and auxiliary support module, respectively, and is used to receive the operating parameters of each module, send control commands, and realize the intelligent coordinated operation of the entire system. The auxiliary support module provides power, protection, and monitoring support for each module to ensure the stable and reliable operation of the system.

[0008] As a preferred technical solution, the intelligent temperature control module includes a temperature acquisition unit, a temperature control execution unit, and a temperature control control unit. The temperature acquisition unit includes an oil temperature sensor installed in the air compressor lubricating oil circuit, an exhaust temperature sensor installed at the exhaust port, and an ambient temperature sensor installed around the equipment, used to collect various temperature parameters in real time and transmit them to the temperature control control unit. The temperature control execution unit includes an electric regulating valve and a bypass valve, respectively installed in the heat exchange circuit of the waste heat recovery module and the original cooling circuit of the air compressor, used to regulate the flow rate of the heat exchange medium and the flow rate of the cooling medium. The temperature control control unit is electrically connected to the central control module, receives instructions from the central control module, and automatically adjusts the opening of the electric regulating valve and the bypass valve according to the parameter feedback from the temperature acquisition unit, so that the air compressor lubricating oil temperature is maintained within a preset range of 70-95℃.

[0009] As a preferred technical solution, the waste heat recovery module includes a heat exchange unit, a medium circulation unit, and a descaling unit. The heat exchange unit adopts a plate or shell-and-tube heat exchanger. The high-temperature side of the heat exchanger is connected to the air compressor lubricating oil circuit and the compressed air circuit, and the low-temperature side is connected to the heat exchange medium circuit of the waste heat utilization module to realize waste heat transfer. The medium circulation unit includes a circulation pump and insulated pipes, which are used to drive the heat exchange medium to circulate between the waste heat recovery module and the waste heat utilization module. The circulation pump adopts frequency conversion control and can automatically adjust the speed according to the amount of waste heat recovered. The descaling unit adopts a counter-current backflushing scale inhibition structure to prevent scale formation on the heat exchange pipes.

[0010] As a preferred technical solution, the waste heat utilization module adopts a switchable modular design, including at least one of a hot water utilization unit and a hot air utilization unit. Each unit is connected to the waste heat recovery module through a standardized interface and can be flexibly combined according to actual heat demand. The hot water utilization unit is used to deliver hot water heated by the heat exchange medium to scenarios such as domestic bathing, workshop cleaning, and heating water supply, and the outlet water temperature can be adjusted to 50-60℃. The hot air utilization unit is used to convert waste heat into hot air at 40-70℃ for workshop heating and material drying.

[0011] As a preferred technical solution, the central control module includes a PLC controller, a touch screen display, and a data transmission unit. The PLC controller has a built-in control algorithm that can automatically optimize the control strategy based on the operating parameters of each module, achieving coordinated operation of intelligent temperature control and waste heat recovery. The touch screen display is used to display system operating parameters and fault information in real time, and supports manual setting of control parameters and system start / stop. The data transmission unit supports wired or wireless transmission and can upload system operating data to the enterprise monitoring platform to achieve remote monitoring and data analysis.

[0012] As a preferred technical solution, the auxiliary support module includes a power support unit, a protection unit, and a fault monitoring unit. The power support unit includes a backup power supply to provide power to the central control module and key temperature control components during sudden power outages, ensuring emergency system operation. The protection unit includes pipe insulation layers and equipment dust covers to reduce heat loss and equipment wear. The fault monitoring unit includes pressure sensors, flow sensors, and leak detectors to monitor system pipeline pressure and medium flow in real time, detect leaks, overpressure, and other faults, and promptly send alarm signals to the central control module.

[0013] As a preferred technical solution, the intelligent temperature control module also has an adaptive adjustment function, which can automatically adjust the temperature control threshold and heat exchange efficiency according to the changes in the air compressor's operating load. When the air compressor's load rate is lower than 50%, it automatically reduces the intensity of waste heat recovery to avoid affecting the normal lubrication of the air compressor.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. This system adopts a fully modular design, separating intelligent temperature control, waste heat recovery, waste heat utilization, central control, and auxiliary support into independent modules. These modules are connected via standardized interfaces, resulting in a clear structure and tight integration. On one hand, the modules can be flexibly combined according to different models and power levels of screw air compressors, eliminating the need for separate system design, reducing adaptation costs, and enabling large-scale deployment. On the other hand, each module can be independently disassembled, inspected, and replaced without requiring system-wide maintenance, reducing equipment downtime, maintenance difficulty, and costs. It also facilitates future technical upgrades, allowing for the addition or replacement of waste heat utilization modules based on heating needs.

[0015] 2. The intelligent temperature control module employs multiple sensors to collect temperature parameters. Combined with the intelligent algorithm of the PLC controller, it can accurately monitor key parameters such as the air compressor's lubricating oil temperature and exhaust temperature in real time. It automatically adjusts the flow rates of the heat exchange medium and cooling medium, stabilizing the air compressor's operating temperature within the optimal lubrication range of 70-95℃. This avoids lubrication failure and equipment wear caused by excessively low oil temperature, while also preventing equipment malfunctions caused by excessively high oil temperature, effectively extending the air compressor's service life and reducing the annual equipment failure rate. Simultaneously, the system has an adaptive adjustment function, dynamically adjusting the control strategy according to changes in the air compressor's operating load, ensuring that temperature control accuracy is unaffected by fluctuations in operating conditions. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a screw air compressor waste heat recovery system with intelligent temperature control. Figure 2 A schematic diagram of the central control module of a screw air compressor waste heat recovery system with intelligent temperature control; Figure 3 A schematic diagram of an intelligent temperature control module for a screw air compressor waste heat recovery system with intelligent temperature control; Figure 4 This is a schematic diagram of a temperature acquisition unit for a screw air compressor waste heat recovery system with intelligent temperature control. Figure 5 A schematic diagram of a temperature control actuator for a waste heat recovery system of a screw air compressor with intelligent temperature control; Figure 6 A schematic diagram of a waste heat recovery module in a screw air compressor waste heat utilization system with intelligent temperature control; Figure 7 This is a schematic diagram of the media circulation unit of a screw air compressor waste heat recovery system with intelligent temperature control; Figure 8 A schematic diagram of a waste heat utilization module in a screw air compressor waste heat utilization system with intelligent temperature control; Figure 9 A schematic diagram of an auxiliary support module for a screw air compressor waste heat recovery system with intelligent temperature control; Figure 10 This is a schematic diagram of the power support unit for a screw air compressor waste heat recovery system with intelligent temperature control. Figure 11 A schematic diagram of the protection unit of a screw air compressor waste heat recovery system with intelligent temperature control; Figure 12 This is a schematic diagram of a fault monitoring unit for a screw air compressor waste heat recovery system with intelligent temperature control.

[0017] In the attached diagram, the following are the reference numerals: 1-Central control module; 11-PLC controller; 12-Touchscreen display; 13-Data transmission unit; 2-Intelligent temperature control module; 21-Temperature acquisition unit; 211-Oil temperature sensor; 212-Exhaust temperature sensor; 213-Ambient temperature sensor; 22-Temperature control execution unit; 221-Electric regulating valve; 222-Bypass valve; 23-Temperature control unit; 3-Waste heat recovery module; 31-Heat exchange unit; 32-Media circulation unit. ; 321-Variable frequency circulating pump; 322-Insulated pipe; 33-Descaling unit; 4-Waste heat utilization module; 41-Hot water utilization unit; 42-Hot air utilization unit; 5-Auxiliary support module; 51-Power support unit; 511-Backup power supply; 52-Protection unit; 521-Pipe insulation layer; 522-Equipment dust cover; 53-Fault monitoring unit; 531-Pressure sensor; 532-Flow sensor; 533-Leak detector; 6-Screw air compressor. Detailed Implementation

[0018] The features and exemplary embodiments of various aspects of the present invention will now be described in detail. To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. For those skilled in the art, the present invention can be practiced without some of these specific details. The following description of the embodiments is merely to provide a better understanding of the present invention by illustrating examples of the invention.

[0019] like Figures 1-12 As shown, this invention provides a technical solution for a screw air compressor waste heat recovery system with intelligent temperature control: it includes an intelligent temperature control module 2, a waste heat recovery module 3, a waste heat utilization module 4, a central control module 1, and an auxiliary support module 5. The modules are detachably connected via standardized interfaces. This connection method allows each module to operate independently while also coordinating and controlling each other.

[0020] On the one hand, the modules can be flexibly combined according to different models and power of screw air compressors 6, without the need to design the whole system separately, which reduces the adaptation cost and facilitates large-scale promotion; on the other hand, each module can be disassembled, inspected and replaced independently, without the need to stop the machine to inspect the whole system, which reduces equipment downtime, reduces maintenance difficulty and maintenance cost, and facilitates later technical upgrades. The waste heat utilization module 4 can be added or replaced according to the heat demand.

[0021] The intelligent temperature control module 2 is connected to the lubricating oil circuit and compressed air circuit of the screw air compressor 6. The temperature acquisition unit 21 includes an oil temperature sensor 211 installed in the air compressor's lubricating oil circuit, an exhaust temperature sensor 212 installed at the exhaust port, and an ambient temperature sensor 213 installed around the equipment. These sensors collect various temperature parameters in real time and transmit them to the temperature control unit 23. The temperature control execution unit 22 includes an electric regulating valve 221 and a bypass valve 222, which are respectively installed in the heat exchange circuit of the waste heat recovery module 3 and the original cooling circuit of the air compressor, used to regulate the flow rate of the heat exchange medium and the cooling medium. The temperature control unit 23 is electrically connected to the central control module 1, receives instructions from the central control module 1, and automatically adjusts the opening of the electric regulating valve 221 and the bypass valve 222 based on the parameter feedback from the temperature acquisition unit 21, maintaining the air compressor lubricating oil temperature within a preset range of 70-95℃. By collecting temperature parameters through multiple sensors and combining them with the intelligent algorithm of PLC controller 11, key parameters such as air compressor lubricating oil temperature and exhaust temperature can be monitored in real time and accurately. The flow rates of heat exchange medium and cooling medium are automatically adjusted to keep the air compressor operating temperature stably controlled within the optimal lubrication range. This avoids lubrication failure and equipment wear caused by excessively low oil temperature, and also prevents equipment failure caused by excessively high oil temperature, effectively extending the service life of the air compressor and reducing the annual failure rate of the equipment.

[0022] The waste heat recovery module 3 is connected to the intelligent temperature control module 2, the air compressor lubricating oil circuit, and the compressed air circuit. The heat exchange unit 31 uses a plate or shell-and-tube heat exchanger. The high-temperature side of the heat exchanger is connected to the air compressor lubricating oil circuit and the compressed air circuit, while the low-temperature side is connected to the heat exchange medium circuit of the waste heat utilization module 4, thus achieving waste heat transfer. The medium circulation unit 32 includes a circulation pump 321 and an insulated pipe 322, used to drive the heat exchange medium to circulate between the waste heat recovery module 3 and the waste heat utilization module 4. The circulation pump 321 uses frequency conversion control and can automatically adjust its speed according to the amount of waste heat recovered. The descaling unit 33 uses a counter-current backflushing scale inhibition structure to prevent scale buildup in the heat exchange pipes. This system effectively recovers the waste heat lost by the air compressor and transfers it to the heat exchange medium. Simultaneously, the frequency-controlled circulation pump 321 can automatically adjust its speed according to the amount of waste heat recovered, improving energy utilization efficiency. The counter-current backflushing scale inhibition structure prevents scale buildup in the heat exchange pipes, ensuring stable system operation.

[0023] The waste heat utilization module 4 is connected to the waste heat recovery module 3 and adopts a switchable modular design, including at least one of a hot water utilization unit 41 and a hot air utilization unit 42. Each unit is connected to the waste heat recovery module 3 through a standardized interface and can be flexibly combined according to actual heat demand. The hot water utilization unit 41 is used to deliver hot water heated by the heat exchange medium to scenarios such as domestic bathing, workshop cleaning, and heating water supply, and the outlet water temperature can be adjusted to 50-60℃; the hot air utilization unit 42 is used to convert waste heat into hot air at 40-70℃ for workshop heating and material drying.

[0024] The hot water utilization unit 41 and the hot air utilization unit 42 can be flexibly combined according to actual heating needs to achieve diversified recovery and reuse of waste heat and improve the overall energy utilization efficiency.

[0025] The central control module 1 is electrically connected to the intelligent temperature control module 2, waste heat recovery module 3, waste heat utilization module 4, and auxiliary support module 5. The central control module 1 includes a PLC controller 11, a touch screen display 12, and a data transmission unit 13. The PLC controller 11 has a built-in control algorithm that can automatically optimize the control strategy based on the operating parameters of each module, achieving coordinated operation of intelligent temperature control and waste heat recovery. The touch screen display 12 is used to display system operating parameters and fault information in real time, and supports manual setting of control parameters and system start / stop. The data transmission unit 13 supports wired or wireless transmission, and can upload system operating data to the enterprise monitoring platform for remote monitoring and data analysis.

[0026] The PLC controller 11 with built-in control algorithm automatically optimizes the control strategy, enabling the system to achieve intelligent temperature control and waste heat recovery in combination. The touch screen 12 facilitates user operation and monitoring of the system operation. The data transmission unit 13 enables remote monitoring and data analysis, improving the system's management efficiency.

[0027] The auxiliary support module 5 provides power, protection, and monitoring support for each module. The power support unit 51 includes a backup power supply 511, which supplies power to the central control module 1 and key temperature control components in the event of a sudden power outage, ensuring emergency operation of the system. The protection unit 52 includes a pipe insulation layer 521 and an equipment dust cover 522, which reduce heat loss and equipment wear. The fault monitoring unit 53 includes a pressure sensor 531, a flow sensor 532, and a leak detector 533, which monitor the system pipeline pressure and medium flow in real time, detect the presence of leaks, overpressure, and other faults, and promptly send alarm signals to the central control module 1.

[0028] The backup power supply 511 ensures the emergency operation of the system during sudden power outages. The pipe insulation layer 521 and the equipment dust cover 522 reduce heat loss and equipment wear. The fault monitoring unit 53 monitors the system status in real time, promptly detects and reports faults, and ensures the stable and reliable operation of the system.

[0029] The intelligent temperature control module 2 also features adaptive adjustment, automatically adjusting the temperature control threshold and heat exchange efficiency based on changes in the air compressor's operating load. When the air compressor's load rate falls below 50%, it automatically reduces the intensity of waste heat recovery to avoid affecting the air compressor's normal lubrication. This allows the system to dynamically adjust its control strategy according to changes in the air compressor's operating load, ensuring that temperature control accuracy is unaffected by fluctuations in operating conditions and guaranteeing normal lubrication and stable operation of the air compressor.

[0030] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

[0031] The embodiments described above are not exhaustive and do not limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the above description. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to effectively utilize the invention and its modifications. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A waste heat recovery system for a screw air compressor with intelligent temperature control, characterized in that, It includes an intelligent temperature control module, a waste heat recovery module, a waste heat utilization module, a central control module, and an auxiliary support module. The modules are detachably connected through standardized interfaces to achieve independent operation and coordinated regulation. The intelligent temperature control module is connected to the lubricating oil circuit and compressed air circuit of the screw air compressor. It is used to collect oil temperature, exhaust temperature and ambient temperature parameters during the operation of the air compressor in real time, and automatically adjust the temperature control actuator according to the preset threshold to maintain the air compressor operating temperature within the preset range. The waste heat recovery module is connected to the intelligent temperature control module, the air compressor lubricating oil circuit, and the compressed air circuit, and is used to recover the waste heat lost by the air compressor and transfer the waste heat to the heat exchange medium. The waste heat utilization module is connected to the waste heat recovery module and is used to receive the waste heat transferred by the heat exchange medium to realize the recovery and reuse of waste heat. The central control module is electrically connected to the intelligent temperature control module, waste heat recovery module, waste heat utilization module, and auxiliary support module, respectively, and is used to receive the operating parameters of each module, send control commands, and realize the intelligent coordinated operation of the entire system. The auxiliary support module provides power, protection, and monitoring support for each module to ensure the stable and reliable operation of the system.

2. The waste heat recovery system for a screw air compressor with intelligent temperature control according to claim 1, characterized in that: The intelligent temperature control module includes a temperature acquisition unit, a temperature control execution unit, and a temperature control control unit. The temperature acquisition unit includes an oil temperature sensor installed in the air compressor lubricating oil circuit, an exhaust temperature sensor installed at the exhaust port, and an ambient temperature sensor installed around the equipment, used to collect various temperature parameters in real time and transmit them to the temperature control control unit. The temperature control execution unit includes an electric regulating valve and a bypass valve, installed in the heat exchange circuit of the waste heat recovery module and the original cooling circuit of the air compressor, respectively, used to regulate the flow rate of the heat exchange medium and the flow rate of the cooling medium. The temperature control control unit is electrically connected to the central control module, receives instructions from the central control module, and automatically adjusts the opening of the electric regulating valve and the bypass valve according to the parameter feedback from the temperature acquisition unit, so that the air compressor lubricating oil temperature is maintained within the preset range of 70-95℃.

3. The waste heat recovery system for a screw air compressor with intelligent temperature control according to claim 2, characterized in that: The waste heat recovery module includes a heat exchange unit, a media circulation unit, and a descaling unit. The heat exchange unit uses a plate or shell-and-tube heat exchanger. The high-temperature side of the heat exchanger is connected to the air compressor lubricating oil circuit and the compressed air circuit, while the low-temperature side is connected to the heat exchange media circuit of the waste heat utilization module to achieve waste heat transfer. The media circulation unit includes a circulation pump and insulated pipes, which drive the heat exchange media to circulate between the waste heat recovery module and the waste heat utilization module. The circulation pump uses frequency conversion control and can automatically adjust its speed according to the amount of waste heat recovered. The descaling unit adopts a counter-current backflushing scale inhibition structure to prevent scale buildup on the heat exchange pipes.

4. A waste heat recovery system for a screw air compressor with intelligent temperature control according to claim 3, characterized in that: The waste heat utilization module adopts a switchable modular design, including at least one of a hot water utilization unit and a hot air utilization unit. Each unit is connected to the waste heat recovery module through a standardized interface and can be flexibly combined according to actual heat demand. The hot water utilization unit is used to deliver hot water heated by the heat exchange medium to scenarios such as domestic bathing, workshop cleaning, and heating water supply. The outlet water temperature can be adjusted to 50-60℃. The hot air utilization unit is used to convert waste heat into hot air at 40-70℃ for workshop heating and material drying.

5. A waste heat recovery system for a screw air compressor with intelligent temperature control according to claim 4, characterized in that: The central control module includes a PLC controller, a touch screen display, and a data transmission unit. The PLC controller has a built-in control algorithm that can automatically optimize the control strategy based on the operating parameters of each module, achieving coordinated operation of intelligent temperature control and waste heat recovery. The touch screen display is used to display system operating parameters and fault information in real time, and supports manual setting of control parameters and system start / stop. The data transmission unit supports wired or wireless transmission and can upload system operating data to the enterprise monitoring platform for remote monitoring and data analysis.

6. A waste heat recovery system for a screw air compressor with intelligent temperature control according to claim 5, characterized in that: The auxiliary support module includes a power support unit, a protection unit, and a fault monitoring unit. The power support unit includes a backup power supply to provide power to the central control module and key temperature control components during sudden power outages, ensuring emergency system operation. The protection unit includes pipe insulation layers and equipment dust covers to reduce heat loss and equipment wear. The fault monitoring unit includes pressure sensors, flow sensors, and leak detectors to monitor system pipeline pressure and medium flow in real time, detect leaks, overpressure, and other faults, and promptly send alarm signals to the central control module.

7. A waste heat recovery system for a screw air compressor with intelligent temperature control according to claim 6, characterized in that: The intelligent temperature control module also has an adaptive adjustment function, which can automatically adjust the temperature control threshold and heat exchange efficiency according to the changes in the air compressor's operating load. When the air compressor's load rate is below 50%, it automatically reduces the intensity of waste heat recovery to avoid affecting the normal lubrication of the air compressor.

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