Heat pump energy-saving rotary dehumidifier

Abstract

The utility model discloses a heat pump energy-saving rotary dehumidifier, and belongs to the technical field of rotary dehumidifiers. The utility model provides a heat pump energy-saving type rotary dehumidifier which comprises a core heat recoverer, a condenser, a regeneration area of a dehumidification rotary wheel, an evaporator and a compressor, wherein the core heat recoverer, the condenser and the regeneration area of the dehumidification rotary wheel are sequentially arranged along a first air path, and the evaporator and the compressor are connected with the condenser through a liquid path. And an air outlet of the regeneration area of the dehumidification rotating wheel is communicated with the core body heat recoverer. According to the heat pump energy-saving type rotary dehumidifier, the single-stage heat pump system is used for providing regenerated hot air for the dehumidification rotary wheel, and the heat pump energy-saving type rotary dehumidifier has the advantages of being low in energy consumption and environmentally friendly. The heat pump energy-saving type rotary dehumidifier is easy to adjust air quantity balance, stable in operation, reasonable in structural design, easy to assemble and capable of being used for transforming an existing stock dehumidification rotary wheel.

Description

Technical Field

[0001] This utility model belongs to the technical field of rotary dehumidifiers, and particularly relates to a heat pump energy-saving rotary dehumidifier. Background Technology

[0002] Rotary dehumidifiers are characterized by high-efficiency dehumidification and strong adaptability. Through the adsorption and regeneration process of the rotor, they can continuously provide dry air, possessing strong dehumidification capabilities and achieving ultra-low dew points even under low-temperature and low-humidity conditions. They are currently widely used in industrial and commercial settings with strict humidity requirements. Rotary regeneration restores its moisture absorption capacity by desorbing moisture with high-temperature air. When the rotor becomes saturated with adsorbed moisture, it enters the regeneration zone. High-temperature regeneration air passes through the rotor, causing the moisture in the adsorbent to vaporize and be discharged outdoors with the regeneration air, thus restoring the rotor to a dry state. To reduce the energy consumption required for regeneration, some equipment uses heat pumps for rotor regeneration; however, this method suffers from significant heat loss during regeneration, difficulty in reaching the regeneration temperature, and complex system operation with poor stability. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a heat pump energy-saving rotary dehumidifier that can use a single-stage heat pump to raise the regenerated air temperature to a higher level.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a heat pump energy-saving rotary dehumidifier, including a core heat recovery unit, a condenser and a regeneration zone of a dehumidifying rotor arranged sequentially along a first air path, and an evaporator and a compressor connected to the condenser through a liquid path; the exhaust port of the regeneration zone of the dehumidifying rotor is connected to the core heat recovery unit.

[0005] It includes a regeneration zone consisting of a first primary filter, a first fan, a core heat recovery unit, a condenser, and a dehumidifying impeller arranged sequentially along the first air path.

[0006] It also includes a heat pump housing, which comprises a first housing and a second housing; the core heat recovery unit and the condenser are disposed in the first housing; and the evaporator and the compressor are disposed in the second housing.

[0007] The second housing includes an evaporator inlet and an evaporator outlet, and a heat exchange fan and an evaporator are arranged sequentially along the evaporator inlet to the evaporator outlet.

[0008] The first housing includes a heat pump inlet and a heat pump outlet; a first primary filter, a first fan, a core heat recovery unit, a condenser, and a temperature sensor are sequentially arranged from the heat pump inlet to the heat pump outlet.

[0009] It also includes a dehumidification chamber, which includes a regeneration section; the regeneration zone of the dehumidification rotor is located within the regeneration section.

[0010] The regeneration section has a regeneration air inlet and a regeneration air outlet, and a regeneration zone with a dehumidifying rotor and a regeneration exhaust fan are arranged sequentially from the regeneration air inlet to the regeneration air outlet.

[0011] It also includes an auxiliary heater, which is located between the regeneration zone of the condenser and the dehumidification impeller.

[0012] The dehumidification chamber includes a dehumidification section; the processing area of ​​the dehumidification rotor is located within the dehumidification section.

[0013] The dehumidification section has a fresh air inlet and a fresh air outlet; along the fresh air inlet to the fresh air outlet, there are sequentially arranged a second primary filter, a front surface cooler, a dehumidification impeller treatment area, a rear surface cooler, and a second fan.

[0014] The beneficial effects of this utility model are as follows: This utility model provides a heat pump energy-saving rotary dehumidifier that utilizes a single-stage heat pump system to provide regenerated hot air to the dehumidifying rotor, featuring low energy consumption and environmental friendliness. This rotary dehumidifier is easy to adjust for airflow balance, operates stably, and has a reasonable structural design that facilitates assembly, making it suitable for retrofitting existing dehumidifying rotors. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the system structure of a specific embodiment of the present invention;

[0016] Label Explanation:

[0017] 1. First primary filter; 2. First fan; 3. Core heat recovery unit; 4. Condenser; 5. Evaporator; 6. Compressor; 7. Dehumidifier impeller; 71. Regeneration zone; 72. Processing zone; 9. Air duct; 10. Auxiliary heater; 11. Heat pump air inlet; 12. Heat pump air outlet; 13. Regeneration air inlet; 14. Regeneration air outlet; 15. Regeneration exhaust fan. Detailed Implementation

[0018] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0019] Please refer to Figure 1 A heat pump energy-saving rotary dehumidifier includes a core heat recovery unit, a condenser, and a regeneration zone of a dehumidifying rotor arranged sequentially along a first air path, as well as an evaporator and a compressor connected to the condenser via a liquid path; the exhaust port of the regeneration zone of the dehumidifying rotor is connected to the core heat recovery unit.

[0020] As described above, the beneficial effects of this invention are as follows: This invention utilizes an evaporator, condenser, and compressor, along with an expansion valve or throttling valve, to form a heat pump system. This heat pump system provides hot air for dehumidifier rotor regeneration. Simultaneously, this heat pump system incorporates a pre-installed core heat recovery unit, allowing further recovery of heat from the regeneration exhaust air to preheat the fresh air. The heated fresh air bypasses the evaporator and passes directly through the condenser, where it reaches a temperature of 85-90°C, sufficient for dehumidifier rotor regeneration. The energy-saving dehumidifier provided by this invention features a separately configured evaporator, ensuring sufficient heat exchange on the evaporator side and increased heat release on the condenser side, resulting in balanced airflow and stable operation of the entire heat pump system.

[0021] Furthermore, the system includes a regeneration zone consisting of a first pre-filter, a first fan, a core heat recovery unit, a condenser, and a dehumidifying impeller, arranged sequentially along the first air path. By further installing the first pre-filter, the incoming fresh air can be effectively filtered, preventing larger particles of dust and impurities in the air from affecting the operation of subsequent equipment.

[0022] Furthermore, it also includes a heat pump housing, which comprises a first housing and a second housing; the core heat recovery unit and the condenser are disposed in the first housing; and the evaporator and the compressor are disposed in the second housing.

[0023] The first and second chambers are not connected in the air duct. The evaporator and compressor in the second chamber are connected to the condenser in the first chamber through the liquid circuit to form a heat pump system.

[0024] Furthermore, the second enclosure includes an evaporator inlet and an evaporator outlet, with a heat exchange fan and an evaporator arranged sequentially from the evaporator inlet to the evaporator outlet. The second enclosure has an independent heat exchange fan to provide the evaporator with the necessary fresh air for heat exchange; the airflow paths of the first and second enclosures are completely independent. Driven by the heat exchange fan, the second airflow enters from the evaporator inlet, passes through the evaporator to ensure sufficient heat exchange on the evaporation side, and is then exhausted to the outside through the evaporator outlet.

[0025] Furthermore, the first housing includes a heat pump inlet and a heat pump outlet; a first pre-filter, a first fan, a core heat recovery unit, a condenser, and a temperature sensor are sequentially arranged from the heat pump inlet to the heat pump outlet. The temperature sensor can detect the regenerated air after the condenser has heated up.

[0026] Furthermore, it also includes a dehumidification chamber, which includes a regeneration section; the regeneration zone of the dehumidification rotor is located within the regeneration section.

[0027] Furthermore, the regeneration section has a regeneration air inlet and a regeneration air outlet, and the regeneration zone of the dehumidifying rotor and the regeneration exhaust fan are arranged sequentially along the regeneration air inlet to the regeneration air outlet. That is, the regeneration zone of the dehumidifying rotor and the regeneration exhaust fan are arranged sequentially along the regeneration air path.

[0028] Furthermore, it also includes an auxiliary heater, which is located between the condenser and the regeneration zone of the dehumidifier rotor. The auxiliary heater can be located within the regeneration section or in a separate, independent housing, separate from the heat pump housing and the dehumidifier housing. The choice between using the auxiliary heater for further heating or not depends on the condenser's temperature rise and the condition of the dehumidifier rotor. When retrofitting existing rotary dehumidifiers, the existing units typically already have heating devices that can be used as auxiliary heaters, eliminating the need for installing new ones.

[0029] Furthermore, the dehumidification chamber includes a dehumidification section; the processing area of ​​the dehumidification rotor is located within the dehumidification section.

[0030] The air paths of the dehumidification section and the regeneration section are independent of each other. The dehumidification section is used to dehumidify the fresh air, and the regeneration section is used to regenerate the dehumidification rotor.

[0031] Furthermore, the dehumidification section has a fresh air inlet and a fresh air outlet; along the fresh air inlet to the fresh air outlet, there are sequentially arranged a second pre-filter, a front surface cooler, a treatment area of ​​the dehumidification impeller, a rear surface cooler, and a second fan. That is, along the third air path, the second pre-filter, the front surface cooler, the treatment area of ​​the dehumidification impeller, the rear surface cooler, and the second fan are arranged sequentially. The third air path passes through the above-mentioned devices in sequence to achieve temperature regulation and dehumidification.

[0032] Furthermore, the heat pump outlet is connected to the regenerated air inlet via a duct; the regenerated air outlet is connected to the core heat recovery unit via a duct.

[0033] The independent design of the heat pump housing and dehumidification housing enhances system operational stability and facilitates inspection and maintenance. Furthermore, existing rotary dehumidifiers still in use can be directly used as dehumidification housings; by adding the heat pump housing of this invention, a heat pump energy-saving rotary dehumidifier of this invention can be obtained. Compared to replacing the entire unit, this avoids resource waste and increased costs.

[0034] Example 1:

[0035] A heat pump energy-saving rotary dehumidifier includes a heat pump housing and a dehumidification housing;

[0036] The heat pump enclosure includes a first enclosure and a second enclosure;

[0037] The first housing includes a heat pump air inlet 11 and a heat pump air outlet 12; a first primary filter 1, a first fan 2, a core heat recovery unit 3, and a condenser 4 are arranged sequentially from the heat pump air inlet 11 to the heat pump air outlet 12.

[0038] The second housing includes an evaporator inlet and an evaporator outlet. A heat exchange fan and an evaporator 5 are arranged sequentially from the evaporator inlet to the evaporator outlet. The compressor is located in the second housing. The condenser 4 is connected to the evaporator 5 and the compressor 6 through a liquid circuit containing refrigerant.

[0039] The dehumidification chamber includes a regeneration section and a dehumidification section;

[0040] The regeneration section has a regeneration air inlet 13 and a regeneration air outlet 14. Along the regeneration air inlet 13 to the regeneration air outlet 14, there is a regeneration zone 71 with a dehumidifying rotor 7 and a regeneration exhaust fan 15.

[0041] The dehumidification section has a fresh air inlet and a fresh air outlet; along the fresh air inlet to the fresh air outlet, there are a second pre-filter, a front surface cooler, a dehumidification wheel treatment area, a rear surface cooler, and a second fan in sequence;

[0042] The heat pump outlet 12 is connected to the regenerated air inlet 13 via a duct, and the regenerated air outlet 14 is connected to the core heat recovery unit 3 via a duct.

[0043] Core heat recovery unit 3 is an aluminum foil core heat recovery unit;

[0044] Both the first fan 2 and the second fan are EC fans;

[0045] Both the first and second primary filters are plate filters.

[0046] The working principle of this utility model is as follows:

[0047] The first fresh air enters the first housing from the heat pump inlet 11 under the action of the first fan 2, and passes through the first primary filter 1, the core heat recovery unit 3 and the condenser 4 in sequence, and is heated to about 85~90℃; then it enters the regeneration zone 71 of the dehumidification rotor 7 from the regeneration air inlet 13 to realize the regeneration of the rotor.

[0048] The second fresh air enters the second chamber from the evaporator inlet and exchanges heat with the evaporator 5. The refrigerant absorbs heat and vaporizes in the evaporator 5, absorbing heat from the second fresh air. Then it is compressed and heated and pressurized by the compressor 6, and liquefied in the condenser 4, releasing heat to the first fresh air.

[0049] The third fresh air enters the dehumidification section from the fresh air inlet, and passes through the second pre-filter, the front surface cooler, the treatment area of ​​the dehumidification wheel, and the rear surface cooler in sequence to achieve dehumidification and temperature regulation. Under the action of the second fan, it is discharged from the fresh air outlet and sent to the designated area.

[0050] The regenerated air after the regeneration of the rotor is completed is discharged from the regenerated air outlet 14 through the regeneration exhaust fan 15 and sent into the core heat recovery unit 3 through the air duct 9 to exchange heat with the first fresh air in it.

[0051] Example 2:

[0052] Please refer to Figure 1 Based on Example 1, Example 2 further includes an auxiliary heater 10 and a temperature sensor;

[0053] The auxiliary heater 10 is located in the regeneration section, between the regeneration air inlet 13 and the regeneration zone;

[0054] The temperature sensor is located inside the first chamber, between the condenser 4 and the heat pump outlet 12.

[0055] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A heat pump energy saving rotary dehumidifier, characterized by, It includes a core heat recovery unit, a condenser, and a regeneration zone of a dehumidifying impeller arranged sequentially along the first air path, as well as an evaporator and a compressor connected to the condenser via a liquid path; the exhaust port of the regeneration zone of the dehumidifying impeller is connected to the core heat recovery unit.

2. The heat pump energy saving rotary dehumidifier according to claim 1, characterized in that, It includes a regeneration zone consisting of a first primary filter, a first fan, a core heat recovery unit, a condenser, and a dehumidifying impeller arranged sequentially along the first air path.

3. The heat pump energy saving rotary dehumidifier according to claim 1, wherein It also includes a heat pump housing, which comprises a first housing and a second housing; the core heat recovery unit and the condenser are disposed in the first housing; and the evaporator and the compressor are disposed in the second housing.

4. The heat pump energy saving rotary dehumidifier according to claim 3, wherein The second housing includes an evaporator inlet and an evaporator outlet, with a heat exchange fan and an evaporator arranged sequentially from the evaporator inlet to the evaporator outlet.

5. The heat pump energy saving rotary dehumidifier according to claim 3, wherein The first housing includes a heat pump inlet and a heat pump outlet; a first primary filter, a first fan, a core heat recovery unit, a condenser, and a temperature sensor are sequentially arranged from the heat pump inlet to the heat pump outlet.

6. The heat pump energy saving rotary dehumidifier according to claim 3, wherein It also includes a dehumidification chamber, which includes a regeneration section; the regeneration zone of the dehumidification rotor is located within the regeneration section.

7. The heat pump energy saving rotary dehumidifier according to claim 6, wherein The regeneration section has a regeneration air inlet and a regeneration air outlet, and a regeneration zone with a dehumidifying rotor and a regeneration exhaust fan are arranged sequentially from the regeneration air inlet to the regeneration air outlet.

8. The heat pump energy saving rotary dehumidifier according to claim 6, wherein It also includes an auxiliary heater, which is located between the regeneration zone of the condenser and the dehumidification rotor.

9. The heat pump energy saving rotary dehumidifier according to claim 6, wherein The dehumidification chamber includes a dehumidification section; the processing area of ​​the dehumidification rotor is located within the dehumidification section.

10. The heat pump energy saving rotary dehumidifier according to claim 9, wherein The dehumidification section has a fresh air inlet and a fresh air outlet; along the fresh air inlet to the fresh air outlet, there are sequentially arranged a second primary filter, a front surface cooler, a dehumidification impeller treatment area, a rear surface cooler, and a second fan.

Images