Cooling system using air compressor room waste heat

Abstract

The application discloses a cooling system utilizing waste heat of an air compressor room. The evaporative cooling water chiller unit has a primary air flow channel and a secondary air flow channel; the inlet of the primary air flow channel is communicated with the inside of the air compressor room through the exhaust outlet of the air compressor room, and is used for introducing high-temperature air in the air compressor room as primary air; the indirect evaporative cooling unit and the direct evaporative cooling unit are sequentially arranged in the primary air flow channel along the air flow direction; the inlet of the secondary air flow channel is communicated with the outdoor atmosphere, and the secondary air flow channel penetrates through the indirect evaporative cooling unit; the direct evaporative cooling unit is connected with a cooling water circulation loop, and the cooling water circulation loop is connected with a cooler of a water-cooled air compressor arranged in the air compressor room. The application organically combines the waste heat recovery of the air compressor room and the preparation of cooling water, realizes efficient heat dissipation of the air compressor room and efficient preparation of low-temperature cooling water of the air compressor, converts the abandoned low-temperature waste heat into useful cold energy, and achieves the step-by-step utilization of energy and the collaborative improvement of system energy efficiency.

Description

Technical Field

[0001] This application relates to the field of cooling system technology, and more particularly to a cooling system that utilizes waste heat from an air compressor room. Background Technology

[0002] In industrial production, air compressors are crucial power source equipment. The compression process generates a significant amount of heat, causing the compressor's operating temperature to rise. For water-cooled air compressors, most of the internal heat is transferred to the circulating cooling water via a cooler, where the heat is carried away. However, some residual heat still dissipates into the compressor room, causing the ambient temperature to continue to rise.

[0003] When the ambient temperature in the air compressor room is too high (e.g., exceeding 45°C), a series of problems can occur: First, high temperatures can cause the compressor lubricating oil temperature to rise, viscosity to decrease, and lubrication to deteriorate, even triggering an over-temperature alarm and causing unplanned shutdowns. Second, high-temperature air has a lower density, which directly reduces the volumetric efficiency of the air compressor, resulting in reduced air production and increased energy consumption. Therefore, effectively removing waste heat from the air compressor room is crucial.

[0004] Currently, traditional solutions typically address these two heat dissipation issues independently: on the one hand, cooling towers or conventional chillers are used to provide cooling water for water-cooled air compressors; on the other hand, a separate mechanical exhaust system is installed for the compressor room to expel hot air outdoors. This separate system has significant drawbacks: the cooling water provided by the cooling tower is limited to the ambient wet-bulb temperature, resulting in limited cooling capacity, and it usually needs to be installed on the roof, occupying a large space and incurring high energy consumption for pipeline transportation; while the compressor room's exhaust system simply discharges heat directly to the atmosphere, failing to recover or utilize the low-temperature heat energy contained within, leading to energy waste. Furthermore, the coexistence of these two systems increases initial investment and operating costs.

[0005] Therefore, there is an urgent need in this field for an integrated system that can organically combine the exhaust of waste heat from the air compressor room with the preparation of cooling water. Utility Model Content

[0006] This application provides a cooling system that utilizes waste heat from an air compressor room, thus solving the problems mentioned in the background art.

[0007] This application provides a cooling system utilizing waste heat from an air compressor room, comprising: an evaporative cooling chiller unit having a primary airflow duct and a secondary airflow duct; the inlet of the primary airflow duct is connected to the interior of the air compressor room through the exhaust outlet of the air compressor room, for introducing high-temperature air from the air compressor room as primary air; an indirect evaporative cooling unit and a direct evaporative cooling unit are sequentially arranged in the primary airflow duct along the airflow direction; the inlet of the secondary airflow duct is connected to the outdoor atmosphere, and it passes through the indirect evaporative cooling unit, for introducing outdoor air as secondary air and indirectly exchanging heat with the primary air; the direct evaporative cooling unit is connected to a cooling water circulation loop, and the cooling water circulation loop is connected to a cooler of a water-cooled air compressor located in the air compressor room, for providing cooling water to the water-cooled air compressor.

[0008] In one possible implementation, the indirect evaporative cooling unit includes a first housing, an indirect heat exchanger, an indirect section spray system, an indirect section water tank, an indirect section water pump, and an indirect section exhaust fan. The sidewall of the first housing has an inlet for the primary airflow channel and an inlet for the secondary airflow channel, and its top wall has an outlet for the secondary airflow channel. The indirect section water tank is located at the bottom of the first housing, and the indirect section water pump is located inside the indirect section water tank. The indirect heat exchanger and the indirect section spray system are sequentially arranged above the indirect section water tank from bottom to top along the secondary airflow direction and are located inside the first housing. The indirect section exhaust fan is located at the top of the first housing and forms the outlet for the secondary airflow channel. The primary airflow passes through the inner channel of the indirect heat exchanger. The indirect section spray system is connected to the indirect section water tank via the indirect section water pump and is used to spray water onto the outer side of the indirect heat exchanger. In one possible implementation, the indirect evaporative cooling unit further includes an indirect section baffle plate, which is disposed between the indirect section spray system and the indirect section exhaust fan to prevent spray water from being carried away by secondary air.

[0009] In one possible implementation, the direct evaporative cooling unit includes a second housing, a direct heat exchanger, a direct section spray system, a direct section water tank, a direct section water pump, and a direct section exhaust fan; the air inlet of the second housing is connected to the primary air outlet of the indirect heat exchanger; the direct section water tank is located at the bottom of the second housing, and the direct section water pump is located inside the direct section water tank; the direct heat exchanger and the direct section spray system are arranged from bottom to top above the direct section water tank, and an air channel for primary air passage is formed between the direct heat exchanger and the water surface of the direct section water tank; the direct section exhaust fan is located at the top of the second housing and constitutes the outlet of the primary air flow channel; the direct section spray system is connected to the direct section water tank through the direct section water pump; the direct section water tank is connected to the cooler of the water-cooled air compressor through the cooling water circulation loop.

[0010] In one possible implementation, the direct evaporation cooling unit further includes a direct section baffle plate, which is disposed between the direct section spray system and the direct section exhaust fan to prevent spray water from being carried away by the primary air.

[0011] In one possible implementation, louvered air inlets are provided at the inlet of the primary airflow duct and the inlet of the secondary airflow duct.

[0012] In one possible implementation, an air filtration section is also provided behind the inlet of the primary airflow duct.

[0013] One or more technical solutions provided in the embodiments of this application have at least the following technical effects: This application replaces traditional cooling towers with evaporative cooling chillers, effectively solving the limitations of large footprints and rooftop placement associated with cooling towers. These evaporative cooling chillers can be flexibly deployed in open outdoor spaces, requiring less floor space and offering greater flexibility in layout. Through the organic combination of indirect and direct evaporative cooling units, the system can produce cooling water below the ambient wet-bulb temperature, with a maximum temperature reaching the air dew point temperature. Traditional cooling towers, on the other hand, can only provide cooling water with a maximum temperature at the air wet-bulb temperature. The lower cooling water temperature more effectively removes the heat generated during the compression process of the water-cooled air compressor, resulting in more significant energy savings. Simultaneously, the high-temperature, low-humidity air inside the air compressor room serves as primary air to meet the room's ventilation and heat dissipation needs, while also providing a high-quality, dry air source for the evaporative cooling chillers. This not only effectively solves the heat dissipation problem of the air compressor room but also overcomes the dependence of traditional evaporative cooling technology on outdoor weather conditions, expanding its application scope. Furthermore, the exhaust outlet of the air compressor room directly serves as the primary air inlet for the evaporative cooling chiller unit. This interface connection method is simple and direct, with a short path, effectively reducing air resistance. This eliminates the need for a separate exhaust system in the air compressor room, saving on the use of fans and ductwork, resulting in good economic efficiency. Therefore, this application organically combines waste heat recovery from the air compressor room with cooling water preparation, achieving efficient heat dissipation in the air compressor room and efficient preparation of low-temperature cooling water for the air compressor. It converts waste low-temperature heat into useful cooling capacity, achieving cascaded energy utilization and synergistic improvement in system energy efficiency. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 A schematic diagram of the structure of a cooling system utilizing waste heat from an air compressor room, provided in an embodiment of this application; Figure 2 This is a schematic diagram of the structure of a water-cooled air compressor provided in an embodiment of this application.

[0016] Icons: 1-Evaporative cooling chiller; 11-Inlet of primary air duct; 12-Indirect evaporative cooling unit; 121-Indirect heat exchanger; 122-Indirect section spray system; 123-Indirect section water tank; 124-Indirect section water pump; 125-Indirect section baffle; 126-Indirect section exhaust fan; 127-First shell; 13-Direct evaporative cooling unit; 131-Direct heat exchanger; 132-Direct section spray system; 133-Direct section water tank; 1 34-Direct section water pump; 135-Direct section baffle plate; 136-Direct section exhaust fan; 137-Second housing; 14-Air filter section; 15-Inlet of secondary air duct; 16-Outlet of secondary air duct; 17-Outlet of primary air duct; 2-Air compressor room; 21-Exhaust outlet; 3-Water-cooled air compressor; 31-Compressor; 32-Oil-gas separator; 33-Cooler; 331-Cooling water supply pipe; 332-Cooling water return pipe. Detailed Implementation

[0017] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0018] In the description of the embodiments of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the embodiments of this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0019] This application provides a cooling system utilizing waste heat from an air compressor room, including an evaporative cooling chiller unit 1. For example... Figures 1 to 2 As shown. The evaporative cooling chiller unit 1 has a primary airflow channel and a secondary airflow channel. The inlet 11 of the primary airflow channel is connected to the interior of the air compressor room 2 through the exhaust outlet 21 of the air compressor room 2, and is used to introduce high-temperature air from the air compressor room 2 as primary air. An indirect evaporative cooling unit 12 and a direct evaporative cooling unit 13 are arranged sequentially along the airflow direction in the primary airflow channel. The inlet 15 of the secondary airflow channel is connected to the outdoor atmosphere and passes through the indirect evaporative cooling unit 12, and is used to introduce outdoor air as secondary air and exchange heat indirectly with the primary air. The direct evaporative cooling unit 13 is connected to a cooling water circulation loop, which is connected to the cooler 33 of the water-cooled air compressor 3 located in the air compressor room 2 through a cooling water supply pipe 331 and a cooling water return pipe 332, and is used to provide cooling water to the water-cooled air compressor 3.

[0020] Specifically, a water-cooled air compressor 3 is installed in the air compressor room 2. This water-cooled air compressor 3 includes a compressor 31, an oil-gas separator 32, and a cooler 33. The cooling process is as follows: low-temperature cooling water from the direct section water tank 133 in the direct evaporative cooling unit 13 is transported to the cooler 33 of the water-cooled air compressor 3 via the cooling water supply pipe 331. Simultaneously, during the operation of the water-cooled air compressor 3, the oil-gas mixture generated by the compressor 31 first enters the oil-gas separator 32 for separation; the separated gas (air) and lubricating oil then enter the cooler 33 respectively. Inside the cooler 33, the high-temperature air and oil are cooled by the flowing cooling water—the air is cooled to produce qualified compressed air, and the cooled oil returns to the compressor 31 for reuse. During this heat exchange process, the cooling water absorbs heat from the oil and air, its temperature rises, and then it returns to the direct section water tank 133 via the cooling water return pipe 332, thus completing a complete cooling cycle.

[0021] It should be noted that this application uses an evaporative cooling chiller unit 1 instead of a traditional cooling tower, effectively solving the limitations of cooling towers, such as large footprint and rooftop placement. This evaporative cooling chiller unit 1 can be flexibly arranged in open outdoor spaces, requiring less floor space and offering more flexible layout options. Through the organic combination of the indirect evaporative cooling unit 12 and the direct evaporative cooling unit 13, the system can produce cooling water below the ambient wet-bulb temperature, with a maximum temperature reaching the air dew point temperature. Traditional cooling towers, on the other hand, can only provide cooling water with a maximum temperature at the air wet-bulb temperature. The lower cooling water temperature more effectively removes the heat generated during the compression process of the water-cooled air compressor 3, thus achieving a more significant energy-saving effect. Simultaneously, the high-temperature, low-humidity air inside the air compressor room 2 can serve as primary air to meet the ventilation and heat dissipation needs of the room, and also provides a high-quality air source with high dry air energy for the evaporative cooling chiller unit 1. This not only effectively solves the heat dissipation problem of the air compressor room 2 but also breaks through the dependence of traditional evaporative cooling technology on outdoor weather conditions, expanding its application scope. Furthermore, the exhaust outlet 21 of the air compressor room 2 directly serves as the inlet 11 of the primary airflow channel of the evaporative cooling chiller unit 1. This interface connection method is simple and direct, with a short path, effectively reducing air resistance. This eliminates the need for a separate exhaust system in the air compressor room 2, saving on the use of fans and ductwork, resulting in good economic efficiency. Therefore, this application organically combines waste heat recovery from the air compressor room 2 with cooling water preparation, achieving efficient heat dissipation in the air compressor room 2 and efficient preparation of low-temperature cooling water for the air compressor. This converts waste low-temperature heat into useful cooling capacity, achieving cascaded energy utilization and synergistic improvement in system energy efficiency.

[0022] In this embodiment, the indirect evaporative cooling unit 12 includes a first housing 127, an indirect heat exchanger 121, an indirect spray system 122, an indirect water tank 123, an indirect water pump 124, and an indirect exhaust fan 126. The side wall of the first housing 127 has an inlet 11 for a primary airflow channel and an inlet 15 for a secondary airflow channel, and its top wall has an outlet 16 for a secondary airflow channel. The indirect water tank 123 is located at the bottom of the first housing 127, and the indirect water pump 124 is located inside the indirect water tank 123. The indirect heat exchanger 121 and the indirect spray system 122 are sequentially arranged from bottom to top above the indirect water tank 123 along the secondary airflow direction and are located inside the first housing 127. The indirect exhaust fan 126 is located at the top of the first housing 127 and forms the outlet 16 of the secondary airflow channel. The primary airflow passes through the inner channel of the indirect heat exchanger 121. The indirect section spray system 122 is connected to the indirect section water tank 123 via the indirect section water pump 124 and is used to spray water onto the outside of the indirect heat exchanger 121.

[0023] It should be noted that the indirect evaporative cooling unit 12 of this application optimizes space utilization and achieves structural compactness. This design ensures that the secondary air and spray water can fully exchange heat and moisture on the outside of the indirect heat exchanger 121, while the primary air is cooled by equal humidity in the inner channel of the indirect heat exchanger 121. This effectively utilizes the secondary air for pre-cooling and strictly isolates the mixing of the two airflows, ensuring the dryness of the primary air (i.e., the exhaust air from the air compressor room 2). This lays a solid foundation for the efficient and stable production of low-temperature cooling water in the subsequent direct evaporative cooling section and ensures the orderly and efficient operation of the entire heat exchange process.

[0024] In this embodiment of the application, the indirect evaporative cooling unit 12 further includes an indirect section baffle plate 125, which is disposed between the indirect section spray system 122 and the indirect section exhaust fan 126 to prevent the spray water from being carried out by the secondary air.

[0025] In this embodiment, the direct evaporative cooling unit 13 includes a second housing 137, a direct heat exchanger 131, a direct section spray system 132, a direct section water tank 133, a direct section water pump 134, and a direct section exhaust fan 136. The air inlet of the second housing 137 is connected to the primary air outlet of the indirect heat exchanger 121. The direct section water tank 133 is located at the bottom of the second housing 137, and the direct section water pump 134 is located inside the direct section water tank 133. The direct heat exchanger 131 and the direct section spray system 132 are arranged from bottom to top above the direct section water tank 133, and an air channel for primary air to pass through is formed between the direct heat exchanger 131 and the water surface of the direct section water tank 133. The direct section exhaust fan 136 is located at the top of the second housing 137 and forms the outlet 17 of the primary air flow channel. The direct section spray system 132 is connected to the direct section water tank 133 through the direct section water pump 134. The direct section water tank 133 is connected to the cooler 33 of the water-cooled air compressor 3 through a cooling water circulation loop.

[0026] In this embodiment of the application, the direct evaporation cooling unit 13 further includes a direct section baffle plate 135, which is disposed between the direct section spray system 132 and the direct section exhaust fan 136 to prevent spray water from being carried out by the primary air.

[0027] In this embodiment of the application, louvered air inlets are provided at the inlet 11 of the primary airflow duct and the inlet 15 of the secondary airflow duct.

[0028] In this embodiment of the application, an air filter section 14 is also provided behind the inlet 11 of the primary airflow duct.

[0029] It should be noted that oil mist, dust and other pollutants that may be carried in the exhaust air of the air compressor room are effectively intercepted and removed when passing through the air filter section 14, thereby preventing these pollutants from adhering to the heat exchanger surface and spray water system of the subsequent indirect and direct evaporative cooling units 13.

[0030] The working principle of the cooling system utilizing waste heat from the air compressor room is as follows: When the system is working, the high-temperature air (primary air) in the air compressor room 2 enters the evaporative cooling chiller unit 1 through the exhaust outlet 21 under the action of the direct section exhaust fan 136. The primary air is first purified by the air filter section 14, and then enters the indirect evaporative cooling unit 12, flowing through the inner channel of the indirect heat exchanger 121.

[0031] Meanwhile, outdoor air (secondary air) enters through inlet 15 of the secondary air duct and flows past the outside of the indirect heat exchanger 121. The indirect section spray system 122 sprays water onto the outside of the indirect heat exchanger 121, and the water evaporates to cool the secondary air. The cooled secondary air then exchanges heat indirectly with the primary air inside the tube wall of the indirect heat exchanger 121, achieving isohumid cooling of the primary air.

[0032] The pre-cooled primary air, namely the exhaust air from the air compressor room 2, enters the direct evaporative cooling unit 13. This direct evaporative cooling unit 13 is the core component for producing low-temperature cooling water. The primary air first flows through the air passage at the bottom of the direct heat exchanger 131, which is also the water spray zone created by the direct section spray system 132. Here, the primary air undergoes thorough and direct heat and moisture exchange with the water film lifted and sprayed down by the direct section water pump 134.

[0033] During this process, the evaporation of water absorbs a large amount of latent heat of vaporization, which significantly reduces the temperature of the spray water. At the same time, the primary air is also humidified and cooled. The cooled water falls into the direct section water tank 133 at the bottom for storage, completing the water cooling cycle.

[0034] The humidified and cooled primary air continues to flow upward under the suction of the top direct section exhaust fan 136. Before being discharged, this air must pass through the packing layer of the direct heat exchanger 131 and the subsequent direct section baffle 135. The packing layer of the direct heat exchanger 131 further promotes heat and mass exchange between air and water, while the subsequent direct section baffle 135 mainly serves as an "air-water separator": through its special tortuous flow channel, it effectively captures and retains liquid water droplets carried in the air using the principle of inertial separation, causing them to flow into the water tank, thereby preventing liquid water from being lost with the exhaust air and ensuring the system's water balance and operational economy.

[0035] Finally, the primary air, having fulfilled its function of cooling the compressor room, is exhausted to the atmosphere via the direct-section exhaust fan 136. Simultaneously, the cooling water, collected and cooled to the ideal temperature in the direct-section water tank 133, is pumped by the direct-section water pump 134 through the cooling water supply pipe 331 to the cooler 33 of the water-cooled air compressor 3, efficiently cooling the high-temperature medium inside the water-cooled air compressor 3. The cooled water, after absorbing heat and heating up, returns to the direct evaporative cooling unit 13 through the cooling water return pipe 332, re-entering the spray and cooling cycle. Thus, the exhaust cooling of the air compressor room 2 and the cooling water preparation of the water-cooled air compressor 3 achieve perfect synergy and a closed loop within an integrated system.

[0036] The various embodiments in this specification are described in a progressive manner. For the same or similar parts between the various embodiments, please refer to each other. Each embodiment focuses on describing the differences from other embodiments.

[0037] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of this application.

Claims

1. A cooling system utilizing waste heat from an air compressor room, characterized in that, include: Evaporative cooling chiller (1) has a primary airflow channel and a secondary airflow channel; The inlet (11) of the primary airflow duct is connected to the interior of the air compressor room (2) through the exhaust outlet (21) of the air compressor room (2) to introduce high-temperature air in the air compressor room (2) as primary air; An indirect evaporative cooling unit (12) and a direct evaporative cooling unit (13) are sequentially arranged in the primary airflow channel along the airflow direction. The inlet (15) of the secondary airflow duct is connected to the outdoor atmosphere and passes through the indirect evaporative cooling unit (12) to introduce outdoor air as secondary air and exchange heat indirectly with the primary air. The direct evaporation cooling unit (13) is connected to a cooling water circulation loop, which is connected to the cooler (33) of the water-cooled air compressor (3) located in the air compressor room (2) to provide cooling water for the water-cooled air compressor (3).

2. The cooling system utilizing waste heat from the air compressor room according to claim 1, characterized in that, The indirect evaporative cooling unit (12) includes a first housing (127), an indirect heat exchanger (121), an indirect section spray system (122), an indirect section water tank (123), an indirect section water pump (124), and an indirect section exhaust fan (126). The first housing (127) has an inlet (11) of the primary airflow channel and an inlet (15) of the secondary airflow channel on its side wall, and an outlet (16) of the secondary airflow channel on its top wall. The indirect section water tank (123) is located at the bottom of the first housing (127), and the indirect section water pump (124) is located inside the indirect section water tank (123); The indirect heat exchanger (121) and the indirect section spray system (122) are arranged sequentially from bottom to top above the indirect section water tank (123) along the secondary air flow direction and are located inside the first shell (127); The indirect section exhaust fan (126) is located on the top of the first housing (127) and forms the outlet (16) of the secondary airflow channel. The primary airflow passes through the inner channel of the indirect heat exchanger (121); The indirect section spray system (122) is connected to the indirect section water tank (123) via the indirect section water pump (124) and is used to spray water onto the outside of the indirect heat exchanger (121).

3. The cooling system utilizing waste heat from the air compressor room according to claim 2, characterized in that, The indirect evaporative cooling unit (12) also includes an indirect section baffle plate (125), which is disposed between the indirect section spray system (122) and the indirect section exhaust fan (126) to prevent spray water from being carried out by secondary air.

4. The cooling system utilizing waste heat from the air compressor room according to claim 2, characterized in that, The direct evaporation cooling unit (13) includes a second shell (137), a direct heat exchanger (131), a direct section spray system (132), a direct section water tank (133), a direct section water pump (134), and a direct section exhaust fan (136). The air inlet of the second housing (137) is connected to the primary air outlet of the indirect heat exchanger (121); The direct section water tank (133) is located at the bottom of the second housing (137), and the direct section water pump (134) is located inside the direct section water tank (133); The direct heat exchanger (131) and the direct section spray system (132) are arranged from bottom to top above the direct section water tank (133), and an air channel for primary air to pass through is formed between the direct heat exchanger (131) and the water surface of the direct section water tank (133). The direct section exhaust fan (136) is located on the top of the second housing (137) and forms the outlet (17) of the primary airflow channel. The direct section sprinkler system (132) is connected to the direct section water tank (133) via the direct section water pump (134); The direct section water tank (133) is connected to the cooler (33) of the water-cooled air compressor (3) through the cooling water circulation loop.

5. The cooling system utilizing waste heat from the air compressor room according to claim 4, characterized in that, The direct evaporation cooling unit (13) also includes a direct section baffle plate (135), which is disposed between the direct section spray system (132) and the direct section exhaust fan (136) to prevent spray water from being carried out by the primary air.

6. The cooling system utilizing waste heat from the air compressor room according to claim 1, characterized in that, Louvered air inlets are provided at the entrance (11) of the primary airflow channel and the entrance (15) of the secondary airflow channel.

7. The cooling system utilizing waste heat from the air compressor room according to claim 1, characterized in that, An air filter section (14) is also provided behind the inlet (11) of the primary airflow duct.

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