Fresh air type rotating wheel dehumidification air conditioning unit with built-in heat pump system

Abstract

The invention discloses a fresh air type rotating wheel dehumidification air conditioning unit with a built-in heat pump system, and belongs to the technical field of air conditioners, the fresh air type rotating wheel dehumidification air conditioning unit comprises a box body, the heat pump system, a low-temperature regeneration dehumidification rotating wheel and an air duct system, the heat pump system, the low-temperature regeneration dehumidification rotating wheel and the air duct system are all fixed in the box body, and the low-temperature regeneration dehumidification rotating wheel comprises a regeneration side and an adsorption side; and the regeneration side can desorb and absorb the adsorbed moisture of the adsorption side. According to the low-temperature regeneration dehumidification rotating wheel, the regeneration side and the adsorption side of the low-temperature regeneration dehumidification rotating wheel are matched with each other during working, and energy consumption is reduced while a low-humidity indoor environment is achieved.

Description

Technical Field

[0001] The invention relates to a fresh air type rotary dehumidification air conditioning unit with a built-in heat pump system, belonging to the technical field of air conditioning. Background Art

[0002] In air conditioning equipment, air conditioning units can achieve functions such as cooling, heating, ventilation and dehumidification, among which the dehumidification function plays a key role in maintaining the comfort of indoor air and achieving the requirements of some environments. In traditional air conditioning units, dehumidification is performed by cooling dehumidification. However, existing dehumidification units are mainly based on cooling dehumidification, but are limited by the limitation that the evaporator surface temperature is lower than the water vapor freezing point, which will cause the evaporator surface to freeze. Usually, it is impossible to stably achieve the dehumidification function requirements of dew point temperature lower than 10℃ (water vapor freezing point temperature 0℃ + reasonable heat transfer temperature difference) or moisture content less than 7.0g / kg; in the process of cooling the air, the air needs to be overcooled and then restored to the appropriate temperature by heating, which increases the energy consumption and operating cost of the equipment. Air conditioning units that can achieve the dehumidification function requirements of dew point temperature lower than 10℃ (water vapor freezing point temperature 0℃ + reasonable heat transfer temperature difference) or moisture content less than 7.0g / kg require expensive steam or electric heating for wheel regeneration, and the operating energy consumption is higher.

[0003] Traditional cooling and dehumidification methods cannot meet the requirements of low humidity environments, and some devices that can meet this requirement face the problem of high energy consumption. Therefore, there is an urgent need for an air conditioning unit that can meet the requirements of low humidity environments and has low energy consumption. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a fresh air type rotary dehumidification air conditioning unit with a built-in heat pump system, which solves the problem that traditional air conditioning units cannot achieve low humidity and traditional rotary dehumidification equipment has high energy consumption during operation.

[0005] The technical problem to be solved by the present invention is achieved by adopting the following technical solution: a fresh air type rotary dehumidification air conditioning unit with a built-in heat pump system, comprising

[0006] Box, heat pump system, low-temperature regeneration dehumidification wheel, air duct system,

[0007] The heat pump system, the low-temperature regeneration dehumidification wheel, and the air duct system are all fixed in the box.

[0008] Features:

[0009] The heat pump system includes an evaporator, a condenser, a compressor, and an expansion valve.

[0010] The evaporator is arranged on one side of the bottom of the box, the compressor is arranged on the other side of the bottom of the box, and the condenser is arranged in the middle of the box;

[0011] The low-temperature regenerative dehumidification wheel includes a regeneration side and an adsorption side, wherein the adsorption side can absorb moisture in the air, and the regeneration side can utilize the moisture absorbed by the adsorption side;

[0012] The air duct system includes a fresh air outlet, a blower, an electric air valve, an exhaust outlet, and an air supply outlet;

[0013] Fresh air enters the box from the fresh air inlet, and is divided into a first air duct and a second air duct after passing through the blower. The first air duct is transported to the regeneration side after passing through the condenser, and then discharged from the box through the exhaust port; the second air duct is transported to the adsorption side after passing through the evaporator, and then discharged from the box through the air supply port;

[0014] A detection system is also provided, and the detection system is arranged in the box to detect the operating parameters of the air duct system and the heat pump system.

[0015] Preferably, an air filter is provided inside the fresh air outlet.

[0016] Preferably, a plurality of partitions are provided inside the box body, and the partitions divide the fresh air into the first air duct and the second air duct.

[0017] Preferably, the first air duct and the second air duct enter the box at the fresh air inlet.

[0018] Preferably, the electric air valve is arranged at the top of the first air duct, and the electric air valve can adjust the opening degree.

[0019] Preferably, the detection system includes a wind speed sensor, a temperature and humidity sensor, a heat pump sensor, and a low-pressure pressure sensor. The wind speed sensor can detect the flow velocity of the second air duct, the temperature and humidity sensor can detect the temperature and humidity of the air supplied by the second air duct, the heat pump sensor can detect the heat pump system, and the low-pressure pressure sensor can detect the evaporation pressure of the heat pump system.

[0020] Preferably, the air supply volume of the blower can be adjusted according to the detection signal of the wind speed sensor.

[0021] Preferably, the compressor, the condenser, the expansion valve and the evaporator are connected in sequence through pipelines, and a refrigerant is provided inside the heat pump system.

[0022] Preferably, the compressor can adjust the output power according to the temperature and humidity sensor and the low-pressure sensor.

[0023] Preferably, the heat pump sensor includes a high-pressure pressure sensor or a temperature sensor, and the high-pressure pressure sensor can detect the high-pressure value of the condenser; the temperature sensor can detect the air outlet temperature of the condenser, and the electric air valve controls the opening according to the temperature detected by the high-pressure pressure sensor or the temperature sensor.

[0024] The beneficial effects of the present invention are:

[0025] (1) Through the present invention, a heat pump system and a low-temperature regenerative dehumidification wheel are provided in the air-conditioning unit. The low-temperature regenerative dehumidification wheel includes a regeneration side and an adsorption side. The regeneration side and the adsorption side cooperate with each other during operation to achieve the functions of dehumidification and temperature control, that is, the dew point temperature is lower than 10°C (the freezing point of water vapor is 0°C + a reasonable heat transfer temperature difference) or the moisture content is less than 7.0g / kg. The heat pump system is driven by electric energy, which can greatly reduce energy consumption compared with the traditional electric heating method, thereby achieving energy-saving and efficient operation of the air-conditioning unit.

[0026] (2) Through the present invention, during the desorption and regeneration process of the low-temperature regenerative dehumidification wheel, the heat in the processed air can be recovered without the need for an additional high-temperature heat source for heating, thereby reducing the reliance on tail energy during the regeneration process. During operation, the low-temperature regenerative dehumidification wheel can recycle the heat generated by the heat pump system during operation, thereby reducing operating costs and the overall energy consumption of the device.

[0027] (3) Through the present invention, an electric air valve is arranged at the top of the first air duct, and the opening of the electric air valve can be adjusted. A detection system is also arranged in the box, and the detection system includes a wind speed sensor, a temperature and humidity sensor, a heat pump sensor, and a low-pressure pressure sensor. The flow rate of the second air duct, the humidity of the second air duct, the high pressure value or the outlet temperature of the heat pump system, and the evaporation pressure of the heat pump system are detected by the sensors respectively, and the air volume of the blower, the output power of the compressor, and the opening of the electric air valve are dynamically adjusted respectively to achieve precise control of the regeneration temperature. The precisely controlled temperature not only improves the efficiency of the wheel regeneration, but also avoids the waste of resources caused by excessive heating, and further improves the comprehensive performance and energy-saving effect of the air-conditioning unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the present invention.

[0029] Figure 2 It is a pipeline schematic diagram of the heat pump system of the present invention.

[0030] Figure 3 It is a schematic diagram of the air duct flow direction of the present invention.

[0031] Figure 4It is a schematic diagram of the structure of the low-temperature regeneration dehumidification of the present invention.

[0032] In the figure: 1-box, 21-evaporator, 22-condenser, 23-compressor, 24-expansion valve, 31-fresh air inlet, 311-air filter, 32-blower, 33-electric air valve, 34-exhaust outlet, 35-air supply outlet, 4-partition, 5-low-temperature regeneration dehumidification wheel, 6-low-pressure pressure sensor, 7-high-pressure pressure sensor, 8-temperature and humidity sensor, 9-wind speed sensor. DETAILED DESCRIPTION

[0033] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the present invention is further described below in conjunction with specific embodiments.

[0034] Example 1

[0035] like Figure 1-Figure 4 Shown

[0036] A fresh air type rotary dehumidification air conditioning unit with a built-in heat pump comprises a housing 1, a heat pump system, a low temperature regenerative dehumidification rotary wheel 5, and an air duct system. The housing 1 can accommodate the heat pump system, the low temperature regenerative dehumidification rotary wheel, and the air duct system. Each system arranged inside the housing 1 is fixed inside the housing 1. Some devices are fixed by partitions 4.

[0037] In this embodiment, the box body 1 is a rectangular parallelepiped, and a space is provided inside to accommodate a heat pump system, a low-temperature regeneration dehumidification wheel 5, and an air duct system.

[0038] Reference Figure 1 The heat pump system includes an evaporator 21, a condenser 22, a compressor 23, and an expansion valve 24. In this embodiment, the evaporator 21 is fixed at the lower left corner of the cabinet 1, the condenser 22 is arranged at the middle right position of the cabinet 1, and the compressor 23 is arranged at the lower right corner of the cabinet 1. The evaporator 21, the condenser 22, and the compressor 23 are connected by pipelines, and an expansion valve 24 is arranged on the pipelines.

[0039] The low-temperature regenerative dehumidification wheel 5 comprises a regeneration side and an adsorption side, wherein the regeneration side can desorb and absorb the adsorbed moisture on the adsorption side.

[0040] Reference Figure 4The specific structure of the low-temperature regenerative dehumidification wheel 5 includes a dehumidification wheel, a sealing plate, and a driving system. The driving system includes a driving motor, which can control the dehumidification wheel to rotate stably in a certain direction; the sealing plate separates the low-temperature regenerative dehumidification wheel 5 into a regeneration side and an adsorption side to ensure that the airflow between the two areas is not interfered; the dehumidification wheel is usually composed of a honeycomb substrate, and a desiccant is coated on the surface. In this embodiment, the upper half of the low-temperature regenerative dehumidification wheel 5 is the regeneration side, and the lower half is the adsorption side. A desiccant material is provided on the dehumidification wheel. In this embodiment, the desiccant material is a polymer absorbent.

[0041] During the operation of the low-temperature regeneration dehumidification wheel 5, the internal dehumidification wheel is driven by the driving motor to rotate slowly, and the regeneration and adsorption stages are continuously performed.

[0042] 1. In the adsorption stage, moist air flows into the adsorption side, absorbs water vapor in the air through the hygroscopic material on the rotor, and the air is dried and output.

[0043] 2. During the regeneration stage, the regeneration zone is heated by a low-temperature heat source, and the hygroscopic material on the wheel releases moisture and is discharged with the air.

[0044] The air duct system is arranged in the box 1, refer to Figure 1 , Figure 3 The air duct system includes a fresh air inlet 31, a blower 32, an electric air valve 33, an exhaust port 34, and an air supply port 35. Fresh air enters the box body 1 from the fresh air inlet 31, and then the blower 32 divides the air duct entering the box body 1 into a first air duct and a second air duct.

[0045] Specifically, the first air duct is discharged from one of the air ducts of the blower 32 , extends to the right and then downward, passes through the condenser 22 and then extends to the left, flows through the regeneration side of the low-temperature regeneration dehumidification wheel 5 , and then is discharged from the box 1 through the exhaust port 34 .

[0046] In this embodiment, the air outlet 34 is arranged on the side of the housing 1 , and is not on the same plane as the fresh air outlet 31 and the air supply outlet 35 .

[0047] The second air duct is specifically: discharged from another air duct of the blower 32, extending downward from the left side, extending to the right after passing through the evaporator 21, the extended air duct passes through the adsorption side of the low-temperature regeneration dehumidification wheel 5, and then extends upward to the air supply port 35, and is discharged from the box 1 through the air supply port 35.

[0048] In this embodiment, the first air duct and the second air duct are both inside the box 1, and the first air duct and the second air duct are not connected, and the first air duct and the second air duct are separated by a plurality of partitions 4. By arranging a plurality of partitions 4 in the box 1, it is ensured that the fresh air entering the box 1 can move according to the designated air duct, and each system arranged in the box 1 can process the air in different air ducts.

[0049] The second air duct extends downward to the exhaust port 34 and then continues to flow downward. After contacting the evaporator 21, it extends to the right. The bottom end of the evaporator 21 is connected and fixed to the lower left corner of the box 1, and the top end of the evaporator 21 is connected and fixed to the exhaust port 34. The evaporator 21 is tilted. When the overall size of the box 1 does not change, the contact surface between the wind flowing into the second air duct and the evaporator 21 is increased. The wind passing through the evaporator 21 extends to the right, and the extended wind passes through the low-temperature regeneration dehumidification wheel 5 and reaches the rightmost side of the box 1. At this stage, the bottom is the inner bottom of the box 1, and the top is isolated from the first air duct by the partition 4. Then the second air duct extends upward and is discharged from the box 1 through the air supply port 35.

[0050] In the first air duct, the bottom of the condenser 22 is in contact with the second air duct, and is arranged in the middle of the housing 1 and tilted, and the tilt angle is opposite to the tilt angle of the evaporator 21. An electric air valve 33 is arranged on the top of the evaporator 21, and the electric air valve 33 is arranged horizontally, and the opening of the electric air valve 33 can be adjusted. An air filter 311 is arranged inside the fresh air inlet 31 fixed on the top of the housing 1, and the air filter 311 can purify the air entering the housing 1. The fresh air entering the housing 1 can only enter the housing 1 from the fresh air inlet 31. A partition 4 is arranged on the top of the inner side of the housing 1, and a blower 32 is arranged at the center of the partition 4 here. The blower 32 divides the fresh air entering the housing 1 into the first air duct and the second air duct.

[0051] In this embodiment, a detection system is provided in the housing 1, and the detection system includes a wind speed sensor 9, a temperature and humidity sensor 8, a low pressure sensor 6, and a heat pump sensor. The wind speed sensor 9 is provided in the air outlet 35, the temperature and humidity sensor 8 is provided in the second air duct, close to the side of the air outlet 35, the low pressure sensor 6 is provided on the side of the evaporator 21, and the heat pump sensor is provided above the compressor 23. The wind speed sensor 9 can detect the outlet wind speed of the air outlet 35, the temperature and humidity sensor 8 can detect the absolute moisture content of the air outlet 35, the low pressure sensor 6 can detect the evaporation pressure of the evaporator 21 in the heat pump system, and the heat pump sensor includes a high pressure sensor 7 or a temperature sensor. When the heat pump sensor is a high pressure sensor 7, the high pressure sensor 7 is provided at the top of the compressor 23, and can detect the high pressure value of the condenser 22; when the heat pump sensor is a temperature sensor, the temperature sensor is provided on the side of the condenser 22, and detects the outlet air temperature of the condenser 22.

[0052] In this embodiment, a wind speed sensor 9 is provided at the air outlet 35. The overall flow rate of the air supply volume can be obtained according to the cross-sectional size of the air outlet 35, and the power of the air blower 32 can be adjusted. The speed of the air blower 32 adjusts the fan output according to the deviation between the air supply volume and the set value. A wind speed sensor 9 is provided at the air outlet 35 to realize accurate calculation of the air supply volume. The speed of the air blower 32 changes dynamically with the demand for air supply volume, thereby improving energy utilization efficiency. Ensure that the air supply volume meets the set value and ensure the reliability of the subsequent dehumidification process.

[0053] A temperature and humidity sensor 8 is provided on one side of the second air duct near the air outlet 35, and the temperature and humidity sensor 8 can detect the absolute humidity content and temperature of the air supplied at this position. In this embodiment, the compressor 23 is a variable capacity compressor, and the compressor 23 adjusts the output capacity of the compressor 23 according to the absolute humidity content detected by the temperature and humidity sensor 8. In addition, the evaporator 21 in the heat pump system is provided with a low-pressure pressure sensor 6, which can detect the evaporation pressure of the evaporator 21 in the heat pump system to prevent the evaporator 21 from freezing. During the operation of the evaporator 21, it is necessary to ensure that the evaporation pressure is higher than the freezing point to prevent the evaporator 21 from freezing.

[0054] Specifically: when the absolute humidity content and temperature of the air supplied from the air supply port 35 are higher than the set value, the output capacity of the compressor 23 is increased; when the absolute humidity content and temperature of the air supplied from the air supply port 35 are lower than the set value, the output capacity of the compressor 23 is reduced; the evaporation pressure of the evaporator 21 in the heat pump system is detected by the low-pressure pressure sensor 6 to prevent the evaporator 21 from freezing.

[0055] In this embodiment, the absolute humidity of the air outlet 35 is detected by the temperature and humidity sensor 8, and the output of the evaporator 21 is adjusted to achieve precise dehumidification capacity control. In addition, a low-pressure pressure sensor 6 is provided in the evaporator 21 to prevent the problem of efficiency reduction caused by evaporator icing.

[0056] Therefore, the output capacity of the evaporator 21 is controlled according to the absolute moisture content of the air supply port 35 and is limited by the evaporation pressure of the evaporator 21 of the heat pump system.

[0057] Specifically:

[0058] In temperature and humidity sensor 8:

[0059] The temperature and humidity sensor 8 detects the absolute humidity of the air outlet 35 and transmits the measured value to the evaporator 21. The evaporator 21 can compare the measured value with the set target humidity value. The temperature and humidity control method is as follows:

[0060] 1. When the absolute humidity is greater than the target value; at this time, the humidity of the exhaust air is high and the dehumidification capacity needs to be increased. At this time, the compressor 23 increases its output, the cooling capacity of the evaporator 21 increases, and the humidity content of the air is reduced.

[0061] 2. When the absolute humidity content is greater than or equal to the target value; at this time, the exhaust air humidity has reached the standard or is lower than the target value, and the dehumidification capacity needs to be reduced. At this time, the output of compressor 23 is reduced to avoid excessive dehumidification and improve system energy efficiency.

[0062] In this embodiment, the target value of absolute humidity content is 4 grams of water vapor per kilogram of dry air.

[0063] In the low pressure sensor 6:

[0064] The low pressure sensor 6 detects the evaporation pressure of the evaporator 21, and the evaporation pressure is directly related to the surface temperature of the evaporator 21. The evaporator 21 can receive the signal detected by the low pressure sensor 6 and adjust its own power according to the signal.

[0065] The surface temperature of the evaporator 21 is closely related to the evaporation pressure. The lower the pressure, the lower the evaporation temperature. In order to prevent the surface of the evaporator 21 from freezing, the pressure of the evaporator 21 needs to be higher than the pressure corresponding to the dew point temperature under air humidity. In actual production, a certain margin needs to be reserved to prevent icing caused by measurement errors and affect the overall operation of the unit. In this embodiment, the evaporator 21 controls its own pressure to be 10% higher than the theoretical pressure. The pressure control method is as follows:

[0066] 1. When the evaporation pressure is greater than or equal to the set value, the evaporator 21 is in a normal working state, and the compressor 21 adjusts the output according to the humidity control method;

[0067] 2. When the evaporation pressure is less than the set value, the surface temperature of the evaporator 21 is too low and may freeze. At this time, the compressor 21 reduces the output to prevent the evaporator 21 from freezing.

[0068] In this embodiment, the set value of the evaporation pressure is 0.7 MPa gauge pressure.

[0069] Under the coordinated operation of the low pressure sensor 6 and the temperature and humidity sensor 8, the following method is formed:

[0070] 1. Humidity is high and evaporation pressure is normal. At this time, increase the compressor output, improve the dehumidification capacity and reduce the air humidity.

[0071] 2. Humidity is high and evaporation pressure is low. At this time, the compressor is appropriately loaded (limited) to gradually increase the dehumidification capacity and avoid the risk of freezing.

[0072] 3. Humidity is normal or low, and evaporation pressure is normal. At this time, reduce compressor output to avoid excessive dehumidification and save energy.

[0073] 4. The humidity is normal or low, and the evaporation pressure is low. At this time, the compressor is unloaded, the refrigeration load is reduced, and ice is prevented.

[0074] 5. The evaporation pressure is too low, regardless of the humidity. At this time, the compressor is suspended or has a very low output to prevent damage to the equipment. It will resume operation after the pressure is restored.

[0075] Through the above control method, the air-conditioning unit can be guaranteed to operate efficiently and the equipment can be protected from damage, thereby achieving precise control and energy consumption optimization.

[0076] In this embodiment, a heat pump sensor is provided inside the heat pump system, and the heat pump sensor is a high pressure pressure sensor 7, which can detect the high pressure value of the condenser 22. The electric air valve 33 can receive the pressure value detected by the high pressure pressure sensor 7, and adjust the opening of the electric air valve 33 according to the detected signal.

[0077] When the pressure value in the detected signal is lower than the set value, the opening of the electric air valve 33 is reduced to reduce the regeneration air volume.

[0078] When the pressure value in the detected signal is higher than the set value, the opening of the electric air valve 33 is increased to reduce the regeneration air volume.

[0079] As another embodiment, the heat pump sensor inside the heat pump system is a temperature sensor, which is connected to the condenser 22 and can detect the outlet air temperature of the condenser 22. The electric air valve 33 can receive the outlet air temperature of the condenser 22 detected by the temperature sensor and adjust the opening of the electric air valve 33 according to the detected signal.

[0080] When the air outlet temperature in the detected signal is lower than the set value, the opening of the electric air valve 33 is reduced to reduce the regeneration air volume.

[0081] When the air outlet temperature in the detected signal is higher than the set value, the opening of the electric air valve 33 is increased to reduce the regeneration air volume.

[0082] The opening of the electric air valve 33 is adjusted by the signal detected by the heat pump sensor to ensure that the regeneration air temperature is within the set range, thereby improving the regeneration effect of the desiccant and reasonably allocating the regeneration air volume to avoid waste of resources.

[0083] By setting up a detection system in the box 1, the unit can maintain stability and efficiency under different working conditions, and is particularly suitable for industrial and commercial application scenarios with strict requirements on air humidity.

[0084] Reference Figure 1 , Figure 2In the heat pump system, the compressor 23 , the condenser 22 , the expansion valve 24 , and the evaporator 21 are connected in sequence through pipelines, and the expansion valve 24 is arranged on the pipeline connecting the condenser 22 and the evaporator 21 .

[0085] A refrigerant is provided in the heat pump system, and the refrigerant flows through the compressor 23, condenser 22, expansion valve 24, and evaporator 21 of the heat pump system through pipelines. The specific flow direction is: starting from the compressor 23, moving upward to the condenser 22, flowing from the top of the condenser 22 to the top of the evaporator 21, and flowing back to the compressor 23 from the bottom of the evaporator 21; the section of the pipeline from the top of the condenser 22 to the top of the evaporator 21 is provided with an expansion valve 24. The working principle of the refrigerant here is the basic refrigerant cycle, and the common refrigerant on the market is used, which can realize the function of the heat pump system. In this embodiment, the heat pump system can ensure a sufficiently high regeneration temperature while ensuring the safety and stability of the heat pump system. The heat pump system uses medium and high temperature refrigerants such as R410A and R134A.

[0086] Compared with conventional dehumidification wheels, conventional dehumidification wheels require a high temperature regeneration temperature of 120 to 130°C, and require electric heating or steam heating, which has high energy consumption. In this embodiment, a low-temperature regenerative dehumidification wheel is used, which only requires a medium temperature regeneration temperature of 60 to 70°C, which perfectly matches the high-temperature heat pump technology. The high-temperature heat pump system can efficiently provide the required regeneration heat with low power consumption, achieving significant energy saving. The condensation waste heat generated by the high-temperature heat pump system during operation is recycled and used for the desorption regeneration process of the low-temperature regenerative dehumidification wheel. Through this heat recovery mechanism, the dependence of traditional electric heating or steam heating on additional high-temperature heat sources is avoided, which can save energy.

[0087] In terms of structure, the first air duct and the second air duct are unified at the fresh air inlet to enter the unit, the air supply fan 32 divides the fresh air entering the box body 1 into the first air duct and the second air duct, and the ratio of the first air duct and the second air duct is allocated by the electric air valve 33. Compared with the conventional regeneration air and the treated air entering the unit separately, the external air duct layout is simpler and the unit structure is more compact.

[0088] The basic principles, main features and advantages of the present invention are shown and described above. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A fresh air type rotary dehumidification air conditioning unit with a built-in heat pump system, comprising Box, heat pump system, low-temperature regeneration dehumidification wheel, air duct system, The heat pump system, the low-temperature regeneration dehumidification wheel, and the air duct system are all fixed in the box. Features: The heat pump system includes an evaporator, a condenser, a compressor, and an expansion valve. The evaporator is arranged on one side of the bottom of the box, the compressor is arranged on the other side of the bottom of the box, and the condenser is arranged in the middle of the box; The low-temperature regenerative dehumidification wheel includes a regeneration side and an adsorption side, wherein the adsorption side can absorb moisture in the air, and the regeneration side can utilize the moisture absorbed by the adsorption side; The air duct system includes a fresh air outlet, a blower, an electric air valve, an exhaust outlet, and an air supply outlet; Fresh air enters the box from the fresh air inlet, and is divided into a first air duct and a second air duct after passing through the blower. The first air duct is transported to the regeneration side after passing through the condenser, and then discharged from the box through the exhaust port; the second air duct is transported to the adsorption side after passing through the evaporator, and then discharged from the box through the air supply port; A detection system is also provided, and the detection system is arranged in the box to detect the operating parameters of the air duct system and the heat pump system.

2. A fresh air type rotary dehumidification air conditioning unit with a built-in heat pump system according to claim 1, characterized in that: An air filter is arranged inside the fresh air outlet.

3. A fresh air type rotary dehumidification air conditioning unit with a built-in heat pump system according to claim 1, characterized in that: A plurality of partitions are arranged inside the box body, and the partitions divide the fresh air into the first air duct and the second air duct.

4. A fresh air type rotary dehumidification air conditioning unit with a built-in heat pump system according to claim 3, characterized in that: The first air duct and the second air duct enter the box at the fresh air inlet.

5. A fresh air type rotary dehumidification air conditioning unit with a built-in heat pump system according to claim 3, characterized in that: The electric air valve is arranged at the top of the first air duct, and the electric air valve can adjust the opening degree.

6. A fresh air type rotary dehumidification air conditioning unit with a built-in heat pump system according to claim 1, characterized in that: The detection system includes a wind speed sensor, a temperature and humidity sensor, a heat pump sensor, and a low-pressure pressure sensor. The wind speed sensor can detect the flow velocity of the second air duct, the temperature and humidity sensor can detect the temperature and humidity of the air supplied by the second air duct, the heat pump sensor can detect the heat pump system, and the low-pressure pressure sensor can detect the evaporation pressure of the heat pump system.

7. A fresh air type rotary dehumidification air conditioning unit with a built-in heat pump system according to claim 6, characterized in that: The air supply volume of the blower can be adjusted according to the detection signal of the wind speed sensor.

8. A fresh air type rotary dehumidification air conditioning unit with a built-in heat pump system according to claim 1, characterized in that: The compressor, the condenser, the expansion valve and the evaporator are connected in sequence through pipelines, and a refrigerant is arranged inside the heat pump system.

9. A fresh air type rotary dehumidification air conditioning unit with a built-in heat pump system according to claim 6, characterized in that: The compressor can adjust the output power according to the temperature and humidity sensor and the low-pressure sensor.

10. A fresh air type rotary dehumidification air conditioning unit with a built-in heat pump system according to any one of claims 5 to 6, characterized in that: The heat pump sensor includes a high-pressure pressure sensor or a temperature sensor, and the high-pressure pressure sensor can detect the high-pressure value of the condenser; the temperature sensor can detect the air outlet temperature of the condenser, and the electric air valve controls the opening according to the temperature detected by the high-pressure pressure sensor or the temperature sensor.

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