TWI898589B - Air conditioning system with waste heat recovery and method thereof - Google Patents

Abstract

This invention relates to an outdoor air conditioning system with waste heat recovery and its method. Primarily, the system utilizes an outside air source, an outdoor air conditioning system, a first heat exchanger, a water tank, a second heat exchanger, an incinerator, and an air duct. This system utilizes waste heat from the incinerator to supply the dehumidifier wheel of the outdoor air conditioning system, removing latent heat from the outside air. The heat is then transported to the desired location via the air duct. This system achieves heat recovery, energy conservation, and carbon reduction, ultimately reducing energy costs.

Description

Air conditioning system with waste heat recovery and method thereof

This invention relates to an outdoor air conditioning system with waste heat recovery and a method thereof, particularly a system with heat recovery applications and energy conservation and carbon reduction capabilities, suitable for use in places or factories related to the semiconductor field, electronics technology field, biotechnology field, food processing field, precision instrument manufacturing field, etc.

Semiconductor manufacturing requires four major exhaust systems: acid exhaust, alkaline exhaust, volatile organic compounds (VOCs), and general exhaust. Therefore, a large amount of outside air must be supplied to meet exhaust needs.

The main air conditioning units (MAUs) in semiconductor industry plant systems are energy-consuming yet necessary equipment. The energy consumption of a MAU in an advanced process plant can be as high as 10,000 refrigerated tons.

In recent years, the semiconductor industry has been actively seeking improvements to high-energy-consuming equipment and facilities within factories to achieve energy conservation and carbon reduction goals. Among these improvements, the main equipment targeted is the main air conditioning unit (MAU).

Therefore, in light of the above-mentioned deficiencies, the inventors of the present invention aim to provide a waste heat recovery air conditioning system and method thereof that has the potential to achieve both energy conservation and carbon reduction, allowing users to easily operate and assemble the system. This is the motivation behind the inventors' deliberate research and design to provide user convenience.

The primary objective of this invention is to provide an outside air conditioning system with waste heat recovery and its method. This system utilizes an outside air source, an outside air conditioning system, a first heat exchanger, a water tank, a second heat exchanger, an incinerator, and an air duct. This system utilizes waste heat from the incinerator to supply the dehumidifier wheel of the outside air conditioning system, removing latent heat from the outside air. The heat is then transported to the desired location via the air duct. This system achieves heat recovery, energy conservation, and carbon reduction, reducing energy costs and enhancing overall practicality.

Another object of the present invention is to provide an outdoor air conditioning system with waste heat recovery and a method thereof, wherein the outdoor air conditioning system is provided with a housing, and the dehumidification wheel is provided in the housing, and the dehumidification wheel has a processing area and a regeneration area, wherein at least one first filter device, at least one first temperature device, at least one water washing device and at least one second temperature device are arranged in front of the dehumidification wheel, so that the outdoor air (Outside Air) can first pass through the above-mentioned devices for dust removal, filtration and control of its temperature and humidity, and then be transported to the processing area of the dehumidification wheel for dehumidification adsorption, and a fan is provided in the housing, and the fan is arranged at any one of the front and back of the dehumidification wheel to push and pull the outdoor air (Outside Air) Air) movement, enabling it to produce fresh air with constant temperature and humidity, thereby increasing overall usability.

Yet another object of the present invention is to provide an outside air conditioning system with waste heat recovery and a method thereof. Through the air duct system, the system is connected to at least one clean room, at least one hospital ward, at least one food processing area, at least one semiconductor manufacturing area, and at least one electronics manufacturing area. This system can provide the required large amounts of outside air to these locations, drive air circulation within these locations, remove dust and heat, achieve the required cleanliness and ventilation volume, and replace the existing air, thereby improving overall operability.

To further understand the features, characteristics, and technical contents of the present invention, please refer to the following detailed description and accompanying drawings of the present invention. However, the accompanying drawings are provided for reference and illustration only and are not intended to limit the present invention.

10: Outside Air

20: Outdoor air conditioning system

21: Cabinet

211: External Qi Inlet

22: First filter equipment

23: First temperature equipment

231: Pre-cooling coil

232: Preheating coil

233: Precooler

234: Preheater

24: Washing equipment

25: Dehumidification wheel

251: Processing Area

252: Regeneration Zone

26: Second temperature equipment

261: Recooling coil

262: Reheat Coil

263: Recooler

264: Reheater

27: Second filter equipment

28: Fan

30: First heat exchanger

40: Water tank

41: Water Valve

42: Pump

50: Second heat exchanger

60: Incineration equipment

61: Combustion exhaust

62: Heat exchanger

70: Air duct

71: Clean Room

80: Bypass equipment

90:Chimney

S100: External Qi Enters

S110: External Air Treatment

S120: Dehumidification adsorption

S130: Exhaust combustion exhaust gas

S140: Heat transfer

S150: Provide a heat source

S160: transported to air ducts

Figure 1 is a schematic diagram of the main structure.

Figure 2 is another schematic diagram of the architecture.

Figure 3 is a flowchart of the main steps.

Please refer to Figures 1-3 for schematic diagrams of embodiments of the present invention. The preferred embodiment of the waste heat recovery outdoor air conditioning system and method of the present invention is suitable for use in related fields or factories such as semiconductors, electronics, biotechnology, food processing, and precision instrument manufacturing, primarily for heat recovery applications and energy conservation and carbon reduction.

The present invention's waste heat recovery outdoor air conditioning system primarily utilizes an outside air source 10, an outdoor air conditioning system 20, a first heat exchanger 30, a water tank 40, a second heat exchanger 50, an incinerator 60, and an air duct 70 (as shown in Figures 1 and 2). The outdoor air 10 contains at least one gas or combination of gases, primarily a mixture of 78.1% nitrogen, 21% oxygen, 0.9% argon, and other impurities. The outdoor air 10 is commonly referred to as "air." Furthermore, the incinerator 60 is any one of a direct-fired incinerator (TO), a catalytic incinerator (not shown), or a regenerative thermal incinerator (RTO) (not shown). When the incinerator 60 is a direct-fired incinerator (TO), the direct-fired incinerator (TO) is provided with any one of two heat exchangers 62, three heat exchangers 62, or four heat exchangers 62. The incineration equipment 60 is combined with either a dual-rotor VOC treatment system (not shown) or a single-rotor VOC treatment system (not shown), and the incineration equipment 60 discharges a combustion exhaust gas 61 (as shown in Figures 1 and 2). The combustion exhaust gas 61 has a temperature exceeding 150°C.

The outside air conditioning system 20 comprises a housing 21 having an outside air inlet 211 for admitting outside air 10. Within the housing 21 of the outside air conditioning system 20 are assembled at least one first filter device 22, at least one first temperature device 23, at least one water washing device 24, a dehumidification wheel 25, and at least one second temperature device 26 (as shown in Figures 1 and 2). The dehumidification wheel 25 is a special honeycomb-shaped paper wheel loaded with a desiccant. Since the honeycomb pores have a diameter of only 1.5 mm, a 1 ^m³ wheel paper core has a moisture absorption area of 3000 ^m² . Air flows through the honeycomb channels in a boundary laminar flow state, resulting in excellent moisture exchange and, therefore, a strong dehumidification capability. The dehumidification wheel 25 comprises a treatment zone 251 and a regeneration zone 252. The first heat exchanger 30 is connected to the regeneration zone 252 and provides a heat source to the regeneration zone 252 for desorption. The first heat exchanger 30 allows the entry of a gas, either outside air or gas (not shown) that has been processed in the treatment zone, for heat exchange. The water tank 40 is connected to the first heat exchanger 30 and the second heat exchanger 50 (as shown in Figures 1 and 2). The water tank 40 outputs water, which can be filtered water, tap water, chilled water, or ice water. The water in the tank 40 transfers heat from the second heat exchanger 50 to the first heat exchanger 30. The water tank 40 is connected to a pump 42 to push the water in the tank 40. The water tank 40 is also equipped with a valve 41 that controls the water entering the tank 40, thereby providing a water supply for the tank 40. The first heat exchanger 30 and the second heat exchanger 50 are liquid-to-air heat exchangers.

Furthermore, the incineration equipment 60 discharges a combustion exhaust gas 61 having a temperature exceeding 150°C, and the combustion exhaust gas 61 passes through the second heat exchanger 50 (as shown in Figures 1 and 2), so that the water and gas in the second heat exchanger 50 undergo heat exchange, allowing the water in the water tank 40 to transfer heat to the first heat exchanger 30 for use, and the water and gas in the first heat exchanger 30 further undergo heat exchange to transport the gas with a heat source to the regeneration zone 252, so that the regeneration zone 252 can undergo thermal desorption, and the gas after thermal desorption is then discharged to the outside, which can be either the sky or the chimney 90. The combustion exhaust gas 61 that has undergone heat exchange in the second heat exchanger 50 is transported to a chimney 90 for discharge.

In front of the dehumidification wheel 25, there is the at least one first filter device 22, the at least one first temperature device 23, and the at least one water washing device 24. The at least one first filter device 22 is either a primary filter (pre filter) or a medium efficiency filter (MEF), or a combination thereof. The primary filter (pre filter) is usually a plate-shaped type suitable for primary filtration, mainly used to filter dust particles larger than 5μm, and is mainly made of non-woven fabrics, nylon mesh, activated carbon filter material, or metal mesh. The MEF is usually a bag-shaped type, widely suitable for secondary filtration, mainly used to filter dust particles larger than 1-5μm, and is mainly made of synthetic fibers and non-woven fabrics. The at least one first temperature control device 23 is either a pre-cooling coil 231 or a pre-heating coil 232, or a combination thereof (as shown in Figure 2). The pre-cooling coil 231 is fed with either cooling water or ice water to cool the hot air in the outside air 10 into a liquid, thereby effectively lowering the air temperature. The pre-heating coil 232 is fed with either hot water or steam to transfer heat energy to the outside air 10, raising its temperature. Furthermore, the at least one first temperature device 23 may be any one of a precooler 233 and a preheater 234, or a combination thereof (as shown in FIG1 ). The precooler 233 may be any one of a shell-and-tube cooler, a fin-and-tube cooler, or a plate heat exchanger cooler, and the preheater 234 may be any one of an electric heater, a gas heater, a thermal oil heater, or a hot water heater.

The at least one water washing device 24 is a washer-humidifier, primarily comprised of at least one pressure pump, at least one nozzle, at least one water supply valve, at least one drain valve, and at least one pipeline (not shown). When the outside air 10 passes through the washer-humidifier, water molecules absorb the heat in the air and vaporize and evaporate, increasing the humidity of the outside air 10 to form humidified air. The at least one second temperature control device 26 is either a recooling coil 261 or a reheating coil 262 (not shown), or a combination thereof (as shown in FIG. 2 ). The recooling coil 261 is fed with either cooling water or ice water to cool the hot air in the outside air 10 into a liquid, thereby effectively lowering the air temperature. The reheating coil 262 (not shown) is fed with either hot water or steam to transfer heat energy to the outside air 10, raising its temperature. Furthermore, the at least one second temperature device 26 can also be any one or a combination of a subcooler 263 and a reheater 264 (as shown in Figure 1). The subcooler 263 can be any one of a shell-and-tube cooler, a fin-and-tube cooler, or a plate heat exchanger cooler, and the reheater 264 can be any one of an electric heater, a gas heater, a thermal oil heater, or a hot water heater.

The outside air 10 treated by the at least one first filter device 22, the at least one first temperature device 23, the at least one water washing device 24, and the at least one second temperature device 26 is then fed into the treatment zone 251 of the dehumidification wheel 25 for dehumidification and adsorption (as shown in Figures 1 and 2). The dehumidification wheel 25 can be positioned before, after, or in the middle of the second temperature device 26. The figures of the present invention illustrate the dehumidification wheel 25 positioned in the middle of the second temperature device 26, but the present invention is not limited to this figure. Three-quarters of the dehumidification wheel 25 is the processing zone 251. As the outside air 10 to be processed passes through the processing zone 251, moisture in the air is absorbed by a moisture absorbent attached to the special fibers, turning it into low-humidity, dry air. This air is then blown out of the other end of the processing zone 251. This allows the absolute humidity of the outside air 10, which has passed through the at least one water-washing device 24, to be adjusted to the desired level through condensation dehumidification.

The first heat exchanger 30 also provides a heat source to the regeneration zone 252 (as shown in Figures 1 and 2). The heat source has a temperature exceeding 100°C and enters the remaining 1/4 of the dehumidification wheel 25, i.e., the regeneration zone 252, in the opposite direction. The heat source slowly enters the regeneration zone 252 to raise the temperature of the hygroscopic agent attached to the special fibers, causing the moisture contained in the hygroscopic agent to vaporize and be carried out of the dehumidification wheel 25, allowing the hygroscopic agent attached to the special fibers to resume its moisture absorption function, thus regenerating the hygroscopic agent. Furthermore, when the dehumidifier wheel 25 slowly rotates, the desiccant attached to the special fibers absorbs moisture and regenerates simultaneously, ensuring a continuous and stable output of dry air.

Furthermore, the housing 21 of the outside air conditioning system 20 is equipped with at least one second filter device 27. This at least one second filter device 27 is located at the rear end of the housing 21 (as shown in Figures 1 and 2). After passing through the treatment zone 251 of the dehumidification wheel 25 for dehumidification and adsorption, the outside air 10 enters the at least one second filter device 27 for filtration. The at least one second filter device 27 is either a high-efficiency particulate air filter (HEPA) or an ultra-low penetration air filter (ULPA), or a combination thereof. The high-efficiency particulate air filter (HEPA) is a filter that is capable of removing the impurities from the air. The HEPA filter is suitable for end-of-line filtration, achieving an efficiency of 99.998% for particles 0.1 micron and 0.3 micron in diameter, and over 99.7% for particles larger than 0.3 micron (1/200 the diameter of a hair). It is the most effective filter for pollutants such as smoke, dust, and bacteria, and is primarily made of ultrafine fiberglass paper or composite filter paper. The Ultra Low Penetration Air Filter (ULPA) is primarily designed to remove particles larger than 0.12μm (120 nanometers), achieving a DOP of over 99.995%, and is primarily made of special ultrafine fiberglass paper.

In addition, a fan 28 is provided in the housing 21 of the outside air conditioning system 20. The fan 28 is provided in either the front of the dehumidifying wheel 25 (as shown in FIG. 2 ) or the back of the dehumidifying wheel 25 (as shown in FIG. 1 ). The main function of the fan 28 is to provide power to push and pull the outside air 10 to move the outside air. Air 10 can be processed sequentially through the at least one first filter device 22, the at least one first temperature device 23, the at least one water washing device 24, and the at least one second temperature device 26 (dust removal, filtration, and temperature and humidity control are performed by these devices), or sequentially through the at least one first filter device 22, the at least one first temperature device 23, the at least one water washing device 24, the at least one second temperature device 26, and the dehumidification wheel 25 (dust removal, filtration, and temperature and humidity control are performed by these devices before being transferred to the treatment zone 251 of the dehumidification wheel 25 for dehumidification and adsorption), thereby generating fresh air with constant temperature and humidity.

Furthermore, the outside air conditioning system 20 is connected to the air duct 70 to transport the air delivered by the outside air conditioning system 20 to the desired location through the air duct 70 (as shown in Figures 1 and 2). The air duct 70 is connected to at least one clean room 71, at least one hospital ward (not shown), at least one food processing area (not shown), at least one semiconductor manufacturing plant area (not shown), and at least one electronics manufacturing plant area (not shown). This provides the required large amounts of outside air for these locations, drives air circulation within these locations, removes dust and heat, achieves the required cleanliness and ventilation volume, and replaces the existing air.

Furthermore, the dehumidifying wheel 25 of the present invention is additionally provided with a bypass device 80 (as shown in FIG. 2 ), wherein the bypass device 80 is any one of a pipeline and a shelf, and the pipeline is mainly connected to the front and rear ends of the treatment area 251 of the dehumidifying wheel 25 through a bypass pipeline provided on the outside of the box 21 or a bypass pipeline provided on the inside of the box 21, and a control valve is provided for switching. The shelf primarily comprises a bypass shelf (not shown) within the housing 21. When necessary, the bypass shelf shields the processing area 251 of the dehumidification wheel 25, creating a gas channel for the outside air 10, which passes sequentially through the at least one first filter device 22, the at least one first temperature device 23, the at least one water washing device 24, and the at least one second temperature device 26, to bypass the dehumidification wheel 25. This bypass facility is designed to redirect airflow in the event of a dehumidification wheel 25 failure, saturation of adsorption capacity, or other force majeure events, to prevent the outside air conditioning system 20 from malfunctioning.

The present invention primarily utilizes an integrated design comprising an outside air source 10, an outside air conditioning system 20, a first heat exchanger 30, a water tank 40, a second heat exchanger 50, an incinerator 60, and an air duct 70. This design utilizes waste heat from the incinerator 60 to supply the dehumidifier 25 of the outside air conditioning system 20, thereby removing latent heat from the outside air 10. The heat is then transported to the desired location via the air duct 70. This achieves heat recovery, energy conservation, and carbon reduction, further reducing energy costs and enhancing overall practicality.

The outside air conditioning method with waste heat recovery of the present invention mainly adopts a combination design of an outside air 10, an outside air conditioning system 20, a first heat exchanger 30, a water tank 40, a second heat exchanger 50, an incineration device 60 and an air duct 70 (as shown in Figures 1 and 2). The outside air conditioning system 20 is provided with a box 21, and the box 21 is equipped with at least one first filter device 22, at least one first temperature device 23, at least one water washing device 24, a degassing device 70, and a heat dissipation device 71. The dehumidifying wheel 25 and at least one second temperature device 26 are provided. The dehumidifying wheel 25 has a treatment zone 251 and a regeneration zone 252. The first heat exchanger 30 is connected to the regeneration zone 252 of the dehumidifying wheel 25. The water tank 40 is connected to the first heat exchanger 30. The second heat exchanger 50 is connected to the water tank 40 and the first heat exchanger 30. The air duct 70 is connected to the outdoor air conditioning system 20.

The main steps of the outdoor air conditioning method with waste heat recovery (as shown in Figure 3) include step S100: outside air intake: the outdoor air conditioning system 20 allows the outside air 10 to enter. After completing step S100, the next step S110 is performed.

The outside air 10 mentioned above contains at least one gas or combination of gases, primarily a mixture of 78.1% nitrogen, 21% oxygen, 0.9% argon, and other impurities. The outside air 10 is commonly known as air.

In the next step S110, outside air treatment is performed: the outside air 10 is treated by passing through the at least one first filter device 22, the at least one first temperature device 23, the at least one water washing device 24, and the at least one second temperature device 26. After completing step S110, the next step S120 is performed.

The outdoor air conditioning system 20 is provided with a housing 21 having an outdoor air inlet 211 for admitting the outdoor air 10. The housing 21 of the outdoor air conditioning system 20 is equipped with at least one first filter device 22, at least one first temperature device 23, at least one water washing device 24, a dehumidification rotor 25, and at least one second temperature device 26 (as shown in Figures 1 and 2).

In the next step S120, dehumidification and adsorption are performed: the outside air 10 enters the dehumidification wheel 25 and passes through the treatment area 251 of the dehumidification wheel 25 for dehumidification and adsorption. After completing step S120, the next step S130 is performed.

The dehumidifier wheel 25 is a special honeycomb-shaped paper wheel loaded with a moisture absorbent. Because the honeycomb pores are only 1.5 mm in diameter, a 1 ^m³ wheel paper core has a moisture absorption area of 3000 ^m² . Air flowing through the honeycomb pores is in a state of boundary laminar flow, resulting in excellent moisture exchange and, therefore, a strong dehumidification capacity. The dehumidifier wheel 25 comprises a treatment zone 251 and a regeneration zone 252.

In the next step, step S130, exhausting combustion exhaust gas is performed: the incineration equipment 60 discharges combustion exhaust gas 61 having a certain temperature, and the combustion exhaust gas 61 passes through the second heat exchanger 50. After completing step S130, the next step S140 is performed.

The incineration equipment 60 is any one of a direct-fired incinerator (TO), a catalytic incinerator (not shown), or a regenerative thermal incinerator (RTO) (not shown). When the incineration equipment 60 is a direct-fired incinerator (TO), the direct-fired incinerator (TO) is provided with any one of two heat exchangers 62, three heat exchangers 62, or four heat exchangers 62. The incineration equipment 60 is combined with either a dual-rotor VOC treatment system (not shown) or a single-rotor VOC treatment system (not shown). The incineration equipment 60 discharges a combustion exhaust gas 61 (as shown in Figures 1 and 2). The combustion exhaust gas 61 has a temperature exceeding 150°C.

In the next step, step S140, heat transfer is performed: the water tank 40 outputs water, and the water in the water tank 40 transfers the heat from the second heat exchanger 50 to the first heat exchanger 30. After completing step S140, the next step S150 is performed.

The first heat exchanger 30 is connected to the regeneration zone 252 and provides a heat source to the regeneration zone 252 for desorption. The first heat exchanger 30 allows a gas to enter, which is either outside air or gas processed in the treatment zone (not shown) for heat exchange. The water tank 40 is connected to the first heat exchanger 30 and the second heat exchanger 50 (as shown in Figures 1 and 2). The water tank 40 outputs water, which can be filtered water, tap water, chilled water, or ice water. The water in the tank 40 transfers heat from the second heat exchanger 50 to the first heat exchanger 30. The water tank 40 is connected to a pump 42 to push the water in the tank 40. The water tank 40 is also equipped with a valve 41, which controls the water entering the tank 40, thereby providing a water supply for the tank 40. The first heat exchanger 30 and the second heat exchanger 50 are liquid-to-air heat exchangers.

In the next step, step S150, a heat source is provided: the first heat exchanger 30 provides a heat source to the regeneration zone 252 for desorption. After completing step S150, the next step, S160, is performed.

In the above-mentioned steps S130, S140, and S150, the incineration equipment 60 discharges a combustion exhaust gas 61 having a temperature exceeding 150°C. The combustion exhaust gas 61 passes through the second heat exchanger 50 (as shown in Figures 1 and 2), so that the water and gas in the second heat exchanger 50 perform heat exchange, allowing the water in the water tank 40 to transfer heat to the first heat exchanger 30 for use. The water and gas in the first heat exchanger 30 further perform heat exchange to transport the gas with a heat source to the regeneration zone 252, so that the regeneration zone 252 can perform thermal desorption, and the gas after thermal desorption is then discharged to the outside, which can be any one of the sky and the chimney 90. The combustion exhaust gas 61 that has undergone heat exchange in the second heat exchanger 50 is transported to a chimney 90 for discharge.

In addition, the next step S160 is to transport the gas to the air duct: the gas sent out by the outdoor air conditioning system 20 is transported to the air duct 70.

The outdoor air conditioning system 20 is connected to the air duct 70 to transport the air delivered by the outdoor air conditioning system 20 to a desired location through the air duct 70 (as shown in Figures 1 and 2). The air duct 70 is connected to at least one clean room 71, at least one hospital ward (not shown), at least one food processing area (not shown), at least one semiconductor manufacturing plant (not shown), or at least one electronics manufacturing plant (not shown).

The dehumidification wheel 25 is preceded by the at least one first filter device 22, the at least one first temperature device 23, and the at least one water washing device 24. The at least one first filter device 22 is either a primary filter (pre filter) or a medium efficiency filter (MEF), or a combination thereof. The primary filter is typically a plate-shaped device suitable for primary filtration, primarily filtering dust particles larger than 5μm. Materials typically include non-woven fabric, nylon mesh, activated carbon filter material, or metal mesh. The MEF is typically a bag-shaped device widely suitable for secondary filtration, primarily filtering dust particles larger than 1-5μm. Materials typically include synthetic fibers and non-woven fabric. The at least one first temperature control device 23 is either a pre-cooling coil 231 or a pre-heating coil 232, or a combination thereof (as shown in FIG. 2 ). The pre-cooling coil 231 is fed with either cooling water or ice water to cool the hot air in the outside air 10 into a liquid, thereby effectively lowering the air temperature. The pre-heating coil 232 is fed with either hot water or steam to transfer heat energy to the outside air 10, raising its temperature. Furthermore, the at least one first temperature device 23 may be any one of a precooler 233 and a preheater 234, or a combination thereof (as shown in FIG1 ). The precooler 233 may be any one of a shell-and-tube cooler, a fin-and-tube cooler, or a plate heat exchanger cooler, and the preheater 234 may be any one of an electric heater, a gas heater, a thermal oil heater, or a hot water heater.

The at least one water washing device 24 is a washer-humidifier, primarily comprised of at least one pressure pump, at least one nozzle, at least one water supply valve, at least one drain valve, and at least one pipeline (not shown). When the outside air 10 passes through the washer-humidifier, water molecules absorb the heat in the air and vaporize and evaporate, increasing the humidity of the outside air 10 to form humidified air. The at least one second temperature control device 26 is either a recooling coil 261 or a reheating coil 262 (not shown), or a combination thereof (as shown in Figure 2). The recooling coil 261 is fed with either cooling water or ice water to cool the hot air in the outside air 10 into a liquid, thereby effectively lowering the air temperature. The reheating coil 262 (not shown) is fed with either hot water or steam to transfer heat energy to the outside air 10, raising its temperature. Furthermore, the at least one second temperature device 26 can also be any one or a combination of a subcooler 263 and a reheater 264 (as shown in Figure 1). The subcooler 263 can be any one of a shell-and-tube cooler, a fin-and-tube cooler, or a plate heat exchanger cooler, and the reheater 264 can be any one of an electric heater, a gas heater, a thermal oil heater, or a hot water heater.

The outside air 10 treated by the at least one first filter device 22, the at least one first temperature device 23, the at least one water washing device 24 and the at least one second temperature device 26 is sent to the treatment area 251 of the dehumidification wheel 25 for dehumidification and adsorption (as shown in Figures 1 and 2), wherein the dehumidification wheel 25 is arranged in any one of the front, rear and middle positions of the second temperature device 26. The figures of the present invention show that the dehumidification wheel 25 is located in the middle of the second temperature device 26, but the present invention is not limited to the figures. Three-quarters of the dehumidification wheel 25 is the processing zone 251. As the outside air 10 to be processed passes through the processing zone 251, moisture in the air is absorbed by a moisture absorbent attached to the special fibers, turning it into low-humidity, dry air. This air is then blown out of the other end of the processing zone 251. This allows the absolute humidity of the outside air 10, which has passed through the at least one water-washing device 24, to be adjusted to the desired level through condensation dehumidification.

The first heat exchanger 30 also provides a heat source to the regeneration zone 252 (as shown in Figures 1 and 2). The heat source, with a temperature exceeding 100°C, enters the remaining 1/4 of the dehumidifier rotor 25 (i.e., the regeneration zone 252) in the opposite direction. The heat source slowly enters the regeneration zone 252, raising the temperature of the hygroscopic agent attached to the special fibers. This vaporizes the moisture contained in the hygroscopic agent and carries it out of the dehumidifier rotor 25, allowing the hygroscopic agent attached to the special fibers to resume its moisture absorption function, effectively regenerating the hygroscopic agent. Furthermore, when the dehumidifier wheel 25 slowly rotates, the desiccant attached to the special fibers absorbs moisture and regenerates simultaneously, ensuring a continuous and stable output of dry air.

In addition, the housing 21 of the outside air conditioning system 20 is provided with at least one second filter device 27. The at least one second filter device 27 is located at the last section of the housing 21 (as shown in FIG. 1 and FIG. 2 ). After the outside air 10 has been dehumidified and adsorbed in the treatment area 251 of the dehumidification wheel 25, it enters the at least one second filter device 27 for filtration. The at least one second filter device 27 is any one or a combination of a high-level filter (High Efficiency Particulate Air Filter, HEPA) or an ultra-low penetration filter (Ultra Low Penetration Air Filter, ULPA). The high-level filter (High Efficiency Particulate Air Filter, HEPA) is preferably a high-level filter. The HEPA filter is suitable for end-of-line filtration, achieving an efficiency of 99.998% for particles 0.1 micron and 0.3 micron in diameter, and over 99.7% for particles larger than 0.3 micron (1/200 the diameter of a hair). It is the most effective filter for pollutants such as smoke, dust, and bacteria, and is primarily made of ultrafine fiberglass paper or composite filter paper. The Ultra Low Penetration Air Filter (ULPA) is primarily designed to remove particles larger than 0.12μm (120 nanometers), achieving a DOP of over 99.995%, and is primarily made of special ultrafine fiberglass paper.

In addition, a fan 28 is provided in the housing 21 of the outside air conditioning system 20. The fan 28 is provided in either the front of the dehumidifying wheel 25 (as shown in FIG. 2 ) or the back of the dehumidifying wheel 25 (as shown in FIG. 1 ). The main function of the fan 28 is to provide power to push and pull the outside air 10 to move the outside air. Air 10 can be processed sequentially through the at least one first filter device 22, the at least one first temperature device 23, the at least one water washing device 24, and the at least one second temperature device 26 (where these devices perform dust removal, filtration, and temperature and humidity control), or sequentially through the at least one first filter device 22, the at least one first temperature device 23, the at least one water washing device 24, the at least one second temperature device 26, and the dehumidification wheel 25 (where these devices perform dust removal, filtration, and temperature and humidity control, and then transported to the treatment zone 251 of the dehumidification wheel 25 for dehumidification and adsorption), thereby generating fresh air with constant temperature and humidity.

Furthermore, the outside air conditioning system 20 is connected to the air duct 70 to transport the air delivered by the outside air conditioning system 20 to the desired location through the air duct 70 (as shown in Figures 1 and 2). The air duct 70 is connected to at least one clean room 71, at least one hospital ward (not shown), at least one food processing area (not shown), at least one semiconductor manufacturing plant area (not shown), and at least one electronics manufacturing plant area (not shown). This provides the required large amounts of outside air for these locations, drives air circulation within these locations, removes dust and heat, achieves the required cleanliness and ventilation volume, and replaces the existing air.

Furthermore, the dehumidification wheel 25 of the present invention is additionally provided with a bypass device 80 (as shown in FIG. 2 ), wherein the bypass device 80 is any one of a pipeline and a shelf, and the pipeline is mainly connected to the front and rear ends of the treatment area 251 of the dehumidification wheel 25 through a bypass pipeline provided on the outside of the box 21 or a bypass pipeline provided on the inside of the box 21, and a control valve is provided for switching. The shelf primarily consists of a bypass shelf (not shown) installed within the housing 21. When needed, the bypass shelf shields the processing area 251 of the dehumidification wheel 25, creating a gas channel for the outside air 10 that sequentially passes through the at least one first filter device 22, the at least one first temperature device 23, the at least one water washing device 24, and the at least one second temperature device 26. This bypass facility redirects the airflow to prevent the outside air conditioning system 20 from malfunctioning, becoming saturated with adsorption, or experiencing other unforeseen circumstances.

The present invention primarily utilizes an outside air source 10, an outside air conditioning system 20, a first heat exchanger 30, a water tank 40, a second heat exchanger 50, an incinerator 60, and an air duct 70 to utilize waste heat from the incinerator 60 and provide it to the dehumidifier 25 of the outside air conditioning system 20 to remove latent heat from the outside air 10. The heat is then transported to the desired location via the air duct 70. This achieves heat recovery and energy conservation and carbon reduction, further reducing energy costs and enhancing overall practicality.

The above detailed description will enable those familiar with this technology to clearly understand that this invention can indeed achieve the aforementioned objectives and complies with the provisions of the Patent Law. Therefore, an invention patent application is filed.

However, the above description is merely a preferred embodiment of the present invention and should not be used to limit the scope of implementation of the present invention. Therefore, any simple equivalent changes and modifications made within the scope of the patent application and the contents of the invention specification should still fall within the scope of coverage of the present patent.

10: Outside Air

20: Outdoor air conditioning system

21: Cabinet

211: External Qi Inlet

22: First filter equipment

23: First temperature equipment

233: Precooler

234: Preheater

24: Washing equipment

25: Dehumidification wheel

251: Processing Area

252: Regeneration Zone

26: Second temperature equipment

263: Recooler

264: Reheater

27: Second filter equipment

28: Fan

30: First heat exchanger

40: Water tank

41: Water Valve

42: Pump

50: Second heat exchanger

60: Incineration equipment

61: Combustion exhaust

62: Heat exchanger

70: Air duct

71: Clean Room

90:Chimney

Claims (32)

An outdoor air conditioning system with waste heat recovery comprises: outside air containing at least one or a combination of gases; an outdoor air conditioning system for receiving the outside air, the outdoor air conditioning system comprising a housing containing at least one first filter device, at least one first temperature device, at least one water washing device, a dehumidification rotor, at least one second temperature device, and at least one second filter device. The dehumidification rotor has a treatment zone and a regeneration zone, wherein the treatment zone performs dehumidification adsorption; a first heat exchanger connected to the regeneration zone of the dehumidification rotor and providing a heat source to the regeneration zone for desorption; A water tank connected to the first heat exchanger outputs water; a second heat exchanger connected to the water tank and the first heat exchanger to transfer heat from the second heat exchanger to the first heat exchanger via the water in the water tank; an incineration device that emits combustion exhaust gas having a certain temperature and passes through the second heat exchanger; and an air duct connected to the outdoor air conditioning system. As described in item 1 of the patent application, the exhaust gas from combustion is further transported to a chimney. As described in item 1 of the patent application, in the outdoor air conditioning system with waste heat recovery, the water tank is further connected to a pump to push the water in the water tank. As described in Item 1 of the patent application, in the outdoor air conditioning system with waste heat recovery, the water tank is further provided with a water valve, which controls the water entering the water tank. As described in item 1 of the patent application, in the outdoor air conditioning system with waste heat recovery, the first heat exchanger further allows a gas to enter for heat exchange. As described in Item 1 of the patent application, the outdoor air conditioning system with waste heat recovery, wherein the air duct is further connected to at least one clean room, at least one hospital ward, at least one food processing area, at least one semiconductor process plant area, and at least one electronics process plant area. As described in Item 1 of the patent application, in the outdoor air conditioning system with waste heat recovery, the dehumidification wheel is further provided with a bypass device for bypassing the dehumidification wheel. As described in Item 7 of the patent application, in the outdoor air conditioning system with waste heat recovery, the bypass device is further any one of a pipeline and a shelf. In the outdoor air conditioning system with waste heat recovery described in Item 1 of the patent application, the at least one first filter device, the at least one first temperature device, and the at least one water washing device are further arranged before the dehumidification wheel. As described in Item 1 of the patent application, in the outdoor air conditioning system with waste heat recovery, the dehumidification wheel is further arranged before, after, or between the second temperature device. In the outdoor air conditioning system with waste heat recovery as described in item 1 or 10 of the patent application, the second temperature device is further any one or a combination of a subcooling coil, a subcooler, a reheating coil, and a reheater. As described in Item 1 of the patent application, in the outdoor air conditioning system with waste heat recovery, the first temperature device is further any one or a combination of a pre-cooling coil, a pre-cooler, a pre-heating coil, and a pre-heater. As described in Item 1 of the patent application, in the outdoor air conditioning system with waste heat recovery, a fan is further provided in the housing, and the fan is located either before or after the dehumidification wheel. As described in Item 1 of the patent application, in the outdoor air conditioning system with waste heat recovery, the at least one second filter device is located at the rear end of the housing. As described in item 1 of the patent application, the waste heat recovery air conditioning system, wherein the incineration equipment is further any one of a direct-fired incinerator (TO), a catalytic incinerator, or a regenerative thermal incinerator (RTO). As described in item 1 of the patent application, the outdoor air conditioning system with waste heat recovery, wherein the incineration equipment is further combined with either a double-rotor volatile organic gas (VOC) treatment system or a single-rotor volatile organic gas (VOC) treatment system. An outside air conditioning method with waste heat recovery mainly comprises an outside air, an outside air conditioning system, a first heat exchanger, a water tank, a second heat exchanger, an incineration device and an air duct. Air (hereinafter referred to as "air") contains at least one or more gases or combinations thereof. The outside air conditioning system comprises a housing, within which are assembled at least one first filter device, at least one first temperature device, at least one water washing device, a dehumidification rotor, at least one second temperature device, and at least one second filter device. The dehumidification rotor has a treatment zone and a regeneration zone. The first heat exchanger is connected to the regeneration zone of the dehumidification rotor. The water tank is connected to the first heat exchanger. The second heat exchanger is connected to the water tank and the first heat exchanger. The air duct is connected to the outside air conditioning system. The main steps include: outside air intake: the outside air conditioning system allows the outside air to enter; outside air treatment: the outside air (hereinafter referred to as "outside air") is treated. Air is processed through the at least one first filter device, the at least one first temperature device, the at least one water washing device, and the at least one second temperature device; dehumidification and adsorption are performed: the outside air enters the dehumidification rotor and undergoes dehumidification and adsorption in the treatment zone of the dehumidification rotor; combustion exhaust gas is discharged: the incineration device discharges combustion exhaust gas with a temperature, and the combustion exhaust gas passes through the second heat exchanger; heat transfer is performed: the water tank outputs water, and the water in the water tank transfers heat from the second heat exchanger to the first heat exchanger; a heat source is provided: the first heat exchanger provides a heat source to the regeneration zone for desorption; and gas is transported to the air duct: the gas sent out by the outside air conditioning system is transported to the air duct. As described in claim 17 of the patent application, the exhaust gas from combustion is further transported to a chimney. As described in patent application No. 17, the outdoor air conditioning method with waste heat recovery, wherein the water tank is further connected to a pump to push the water in the water tank. As described in patent application Item 17, the outdoor air conditioning method with waste heat recovery, wherein the water tank is further provided with a water valve, and the water valve controls the water entering the water tank. As described in patent application Item 17, the outdoor air conditioning method with waste heat recovery, wherein the first heat exchanger is further adapted to allow a gas to enter for heat exchange. As described in Item 17 of the patent application, the outdoor air conditioning method with waste heat recovery, wherein the air duct is further connected to at least one clean room, at least one hospital ward, at least one food processing area, at least one semiconductor processing plant area, and at least one electronic processing plant area. As described in patent application No. 17, in the outdoor air conditioning method with waste heat recovery, the dehumidification wheel is further provided with a bypass device for bypassing the dehumidification wheel. As described in Item 23 of the patent application, in the outdoor air conditioning method with waste heat recovery, the bypass device is further any one of a pipeline and a shelf. In the outdoor air conditioning method with waste heat recovery described in claim 17, the at least one first filter device, the at least one first temperature device, and the at least one water washing device are further arranged before the dehumidification wheel. As described in patent application Item 17, the air conditioning method with waste heat recovery for outdoor air, wherein the dehumidification wheel is further arranged before, after, or in between the second temperature device. In the outdoor air conditioning method with waste heat recovery as described in claim 17 or 26, the second temperature device is further any one or a combination of a subcooling coil, a subcooler, a reheating coil, and a reheater. As described in Item 17 of the patent application, in the outdoor air conditioning method with waste heat recovery, the first temperature device is further any one or a combination of a precooling coil, a precooler, a preheating coil, and a preheater. As described in Item 17 of the patent application, in the outdoor air conditioning method with waste heat recovery, a fan is further provided in the housing, and the fan is located either before or after the dehumidification wheel. As described in patent application Item 17, the outdoor air conditioning method with waste heat recovery, wherein the at least one second filter device is located at the rear end of the housing. As described in claim 17 of the patent application, the method for outdoor air conditioning with waste heat recovery, wherein the incineration equipment is further any one of a direct-fired incinerator (TO), a catalytic incinerator, or a regenerative thermal incinerator (RTO). As described in Item 17 of the patent application, the outdoor air conditioning method with waste heat recovery, wherein the incineration equipment is further combined with either a double-rotor volatile organic gas (VOC) treatment system or a single-rotor volatile organic gas (VOC) treatment system.