Energy-saving combined rotary dehumidifier system reheated by using condensation heat recovery technology

Abstract

The utility model discloses an energy-saving type combined rotary dehumidifier system reheated through a condensation heat recovery technology, and belongs to the field of air conditioning. According to the invention, the evaporator is used for evaporating and refrigerating, the condensation heat of the condenser is recovered, and the rotary dehumidifier is combined to achieve the purpose of drying air. The main components comprise an air filter, an evaporator, a condenser, a compressor, an expansion valve, a condensation regenerator, a rotary dehumidifier, a heater, a regeneration fan and the like. When the system runs, the air blower drives air to flow through the filter to filter impurities, then the air is cooled through the evaporator, the rotary dehumidifier absorbs water vapor contained in the air, and the dry air is heated in the condensation reheater and the heater and is finally fed into a room. Meanwhile, the rotating wheel absorbing the moisture moves to a regeneration area, and the adsorbed moisture is heated by hot air to become steam again to be discharged. The system fully recycles heat released by condensation of the condenser to heat air, and is an energy-saving and environment-friendly dehumidification system.

Description

Technical Field

[0001] The utility model relates to an energy-saving combined rotary dehumidifier system which applies condensation heat recovery technology for reheating and belongs to the field of air conditioning. Background Art

[0002] In recent years, as people's pursuit of quality of life and physical health has improved, air humidity has received more and more attention. If the air humidity is too high, it is very easy to cause clothes to become damp and moldy, food to become damp and spoiled, electrical appliances to become damp and damaged, bacteria to breed in spring, heat dissipation to be blocked in summer, and cold and damp temperatures in winter to seriously affect people's living standards. Dehumidifiers are products that dry air and reduce humidity. Because my country's dehumidification demand area is vast, the market capacity is large. Therefore, an energy-saving, environmentally friendly and efficient dehumidifier is very promising.

[0003] At present, energy conservation and environmental protection are important factors affecting the sales performance of electrical products. Therefore, in addition to achieving the basic functions of air dehumidification and drying, dehumidifiers should also take into account the efficient use of energy and the continuous cycle of the dehumidification process. There are many traditional dehumidification methods, such as refrigeration dehumidification, which uses refrigeration devices to discharge moisture from the air while lowering the temperature, but this method is greatly affected by temperature; another example is solution dehumidification, which uses dehumidification solutions to absorb moisture from the air, but the control system is relatively complex and has certain cleanliness requirements for the treated air. Rotary dehumidification is favored by scholars because of its high dehumidification efficiency, no need for refrigerant, and stable and reliable operation. For example, patent 201410139889.1 is a low-temperature regenerative rotary dehumidification system, which also reduces the temperature through an evaporator, removes water from the air through a rotary dehumidifier, and then heats the air through a heater and sends it into the room, but the heat in the condenser is not fully utilized, resulting in energy waste.

[0004] When the dehumidifier system of the utility model is in operation, on the one hand, the blower drives the air to flow through the filter, and the air temperature is reduced through the evaporator. The air with lower temperature passes through the rotary dehumidifier, and the water vapor adheres to the surface of the rotor. The condenser reheater connected to the evaporator releases heat to heat the air, and finally the air is heated by the heater and sent into the room, completing the air drying and dehumidification process. On the other hand, the heated air flows through the rotary dehumidifier, and the hot air heats and takes away the moisture attached to the surface of the rotary dehumidifier, achieving the purpose of air purification and ensuring the smooth operation of the rotary dehumidifier. Summary of the invention

[0005] The utility model aims to provide a condensation heat recovery energy-saving combined rotary dehumidifier system.

[0006] The utility model is composed of a first air filter 1, an evaporator 2, a compressor 3, a condenser 4, a three-way valve 5, an expansion valve 6, a rotary dehumidifier 7, a condenser reheater 8, a first heater 9, a blower 10, a second air filter 11, a second heater 12, and a regeneration blower 13;

[0007] The evaporator 2 has two inlets and two outlets, the two inlets correspond to the outlets of the first air filter 1 and the expansion valve 6, and the two outlets correspond to the inlets of the compressor 3 and the rotary dehumidifier 7; the three-way valve 5 has one inlet and two outlets, the two outlets correspond to the inlets of the condenser 4 and the condenser reheater 8, respectively; the rotary dehumidifier 7 has two inlets and two outlets, the two inlets correspond to the outlets of the evaporator 2 and the second heater 12, and the two outlets correspond to the inlets of the condenser reheater 8 and the regeneration fan 13, respectively; the condenser reheater 8 has two inlets and two outlets, the two inlets correspond to the outlets of the three-way valve 5 and the rotary dehumidifier 7, and the two outlets correspond to the inlets of the expansion valve 6 and the first heater 9, respectively;

[0008] The outlet of the first air filter 1 is connected to the first inlet of the evaporator 2, the first outlet of the evaporator 2 is connected to the inlet of the compressor 3, the outlet of the compressor 3 is connected to the inlet of the three-way valve 5, the first outlet of the three-way valve 5 is connected to the inlet of the condenser 4, the second outlet of the three-way valve 5 is connected to the first inlet of the condenser reheater 8, and the outlet of the condenser 4 is connected to the inlet of the expansion valve 6; the outlet of the expansion valve 6 is connected to the second inlet of the evaporator 2, the second outlet of the evaporator 2 is connected to the first inlet of the rotary dehumidifier 7, the first outlet of the rotary dehumidifier 7 is connected to the second inlet of the condenser reheater 8, the first outlet of the condenser reheater 8 is connected to the inlet of the expansion valve 6, the second outlet of the condenser reheater 8 is connected to the inlet of the first heater 9, and the outlet of the first heater 9 is connected to the inlet of the blower 10;

[0009] The outlet of the second air filter 11 is connected to the inlet of the second heater 12 , the outlet of the second heater 12 is connected to the second inlet of the rotary dehumidifier 7 , and the second outlet of the rotary dehumidifier 7 is connected to the inlet of the regeneration fan 13 .

[0010] The system is divided into dehumidification area and regeneration area:

[0011] Dehumidification area:

[0012] When the system starts to operate, the air is filtered of impurities by the first air filter (1) and then flows into the first inlet of the evaporator (2). After heat exchange with the refrigerant in the evaporator (2), the air becomes low-temperature air of 10-16°C and flows into the rotary dehumidifier (7) from the second outlet of the evaporator (2). The refrigerant that vaporizes and absorbs heat in the evaporator (2) flows into the compressor (3) from the first outlet of the evaporator (2), is compressed into high-temperature and high-pressure steam by the compressor (3), and then flows to the three-way valve (5). From the first outlet of the three-way valve (5), it flows to the condenser (4), releases heat in the condenser (4) and condenses into liquid. The liquid refrigerant flows from the outlet of the condenser (4) to the expansion valve (6), becomes a low-pressure refrigerant liquid after being throttled by the expansion valve (6), flows from the outlet of the expansion valve (6) to the second inlet of the evaporator (2), and the high-temperature and high-pressure refrigerant flowing out of the second outlet of the three-way valve (5) flows into the condenser reheater (8), releases heat in the condenser reheater (8), becomes a liquid refrigerant, flows from the first outlet of the condenser reheater (8), becomes a low-pressure refrigerant liquid after being throttled by the expansion valve (6), and flows from the outlet of the expansion valve (6) to the second inlet of the evaporator (2);

[0013] The low-temperature air flowing out of the second outlet of the evaporator (2) flows into the rotary dehumidifier (7), and after the dehumidification wheel rotating in the rotary dehumidifier (7) absorbs moisture in the air, flows into the condenser reheater (8) from the first outlet of the rotary dehumidifier (7), and after being heated by the heat in the condenser reheater (8), flows into the first heater (9) from the second outlet of the condenser reheater (8). The air is heated again by the first heater (9) and then sent into the room through the blower (10);

[0014] Regeneration Zone:

[0015] The air is filtered of impurities by the second air filter (11) and then flows into the second heater (12). The air is heated to 120° C. by the second heater (12) and then passes through the rotary dehumidifier (7). After the moisture absorbed by the rotary wheel of the rotary dehumidifier (7) is removed, the air flows into the regeneration fan (13) from the second outlet of the rotary dehumidifier (7) and is directly discharged by the regeneration fan (13).

[0016] The refrigerant stored in the evaporator (2), the compressor (3), the condenser (4), the three-way valve (5), the expansion valve (6) and the condenser reheater (8) is Freon.

[0017] The rotary wheel in the rotary dehumidifier (7) is a honeycomb type rotary wheel carrying a moisture absorbent.

[0018] The system is divided into a dehumidification zone and a regeneration zone. The dehumidification zone dehumidifies the air delivered to the room, and the regeneration zone removes the absorbed moisture from the rotary wheel so that the rotary dehumidifier continues to circulate.

[0019] The air heated by the condenser reheater (8) may not reach the ideal temperature for delivery into the room, so it is reheated by the first heater (9) and delivered into the room by the blower (10). BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Attached Figure 1 It is the principle diagram of the utility model.

[0021] Attached Figure 1 The label names are: 1. First air filter, 2. Evaporator, 3. Compressor, 4. Condenser, 5. Three-way valve, 6. Expansion valve, 7. Rotary dehumidifier, 8. Condensation reheater, 9. First heater, 10. Blower, 11. Second air filter, 12. Second heater, 13. Regeneration fan. DETAILED DESCRIPTION

[0022] like Figure 1 As shown, a condensation heat recovery energy-saving combined rotary dehumidifier system mainly includes a first air filter 1, an evaporator 2, a compressor 3, a condenser 4, a three-way valve 5, an expansion valve 6, a rotary dehumidifier 7, a condensation reheater 8, a first heater 9, a blower 10, a second air filter 11, a second heater 12, and a regeneration fan 13.

[0023] The system is divided into dehumidification area and regeneration area:

[0024] Dehumidification area:

[0025] When the system starts to operate, the air flows into the first inlet of the evaporator 2 after being filtered of impurities by the first air filter 1, and becomes low-temperature air of 10-16°C after heat exchange with the refrigerant in the evaporator 2, and flows into the rotary dehumidifier 7 from the second outlet of the evaporator 2. The refrigerant that vaporizes and absorbs heat in the evaporator 2 flows into the compressor 3 from the first outlet of the evaporator 2, and flows to the three-way valve 5 after being compressed into high-temperature and high-pressure steam by the compressor 3, and flows to the condenser 4 from the first outlet of the three-way valve 5, and releases heat in the condenser 4 to condense into liquid refrigerant, and flows to the expansion valve 6 from the outlet of the condenser 4, and becomes low-pressure refrigerant liquid after throttling by the expansion valve 6, and flows into the second inlet of the evaporator 2 from the outlet of the expansion valve 6. The high-temperature and high-pressure refrigerant flowing out of the second outlet of the three-way valve 5 flows into the condenser reheater 8, and releases heat in the condenser reheater 8 to become liquid refrigerant, and flows into the expansion valve 6 from the first outlet of the condenser reheater 8, and becomes low-pressure refrigerant liquid after throttling by the expansion valve 6, and flows into the second inlet of the evaporator 2 from the outlet of the expansion valve 6;

[0026] The low-temperature air flowing out of the second outlet of the evaporator 2 flows into the rotary dehumidifier 7, and after the dehumidification wheel rotating in the rotary dehumidifier 7 absorbs moisture in the air, flows into the condenser reheater 8 from the first outlet of the rotary dehumidifier 7, and after being heated by the heat in the condenser reheater 8, flows into the first heater 9 from the second outlet of the condenser reheater 8. The air is heated again by the first heater 9 and then sent into the room through the blower 10;

[0027] Regeneration Zone:

[0028] The air is filtered of impurities by the second air filter 11 and flows into the second heater 12. After being heated to 120°C by the second heater 12, the air passes through the rotary dehumidifier 7. After the moisture absorbed by the rotor in the rotary dehumidifier 7 is removed, the air flows into the regeneration fan 13 from the second outlet of the rotary dehumidifier 7 and is directly discharged by the regeneration fan 13.

[0029] The utility model combines a traditional dehumidifier with a condensation reheater. When the air is cooled in the system evaporator, the heat generated by the condensation of the condenser is not completely released into the air, but is connected to the second half of the system for heating the air after dehumidification. The full utilization of energy is achieved. At the same time, the system includes a set of rotary dehumidifier drying devices. When the indoor air is filtered and cooled, and flows through the rotary dehumidifier, the moisture in the air remains in the rotary dehumidifier. The regeneration blower in the device drives the air, which is filtered and heated to 120°C by the heater. The high-temperature air passes through the rotary dehumidifier, and the moisture evaporates by heat. Driven by the regeneration blower, the moisture in the rotary dehumidifier is removed to ensure the dryness and continuous and stable operation of the rotary dehumidifier. The system uses a condensation heater to save part of the energy required for heating with a single heater; and the design of the regeneration zone of the rotary dehumidifier greatly enhances the working efficiency of the rotary dehumidifier.

Claims

1. An energy-saving combined rotary dehumidifier system using condensation heat recovery technology for reheating, characterized in that: It is composed of a first air filter (1), an evaporator (2), a compressor (3), a condenser (4), a three-way valve (5), an expansion valve (6), a rotary dehumidifier (7), a condenser reheater (8), a first heater (9), a blower (10), a second air filter (11), a second heater (12), and a regeneration blower (13); The evaporator (2) has two inlets and two outlets, the two inlets correspond to the outlets of the first air filter (1) and the expansion valve (6), respectively, and the two outlets correspond to the inlets of the compressor (3) and the rotary dehumidifier (7), respectively; the three-way valve (5) has one inlet and two outlets, the two outlets correspond to the inlets of the condenser (4) and the condenser reheater (8), respectively; the rotary dehumidifier (7) has two inlets and two outlets, the two inlets correspond to the outlets of the evaporator (2) and the second heater (12), respectively, and the two outlets correspond to the inlets of the condenser reheater (8) and the regeneration fan (13), respectively; the condenser reheater (8) has two inlets and two outlets, the two inlets correspond to the outlets of the three-way valve (5) and the rotary dehumidifier (7), respectively, and the two outlets correspond to the inlets of the expansion valve (6) and the first heater (9), respectively; The outlet of the first air filter (1) is connected to the first inlet of the evaporator (2), the first outlet of the evaporator (2) is connected to the inlet of the compressor (3), the outlet of the compressor (3) is connected to the inlet of the three-way valve (5), the first outlet of the three-way valve (5) is connected to the inlet of the condenser (4), the second outlet of the three-way valve (5) is connected to the first inlet of the condenser reheater (8), the outlet of the condenser (4) is connected to the inlet of the expansion valve (6); the outlet of the expansion valve (6) is connected to the second inlet of the evaporator (2), the second outlet of the evaporator (2) is connected to the first inlet of the rotary dehumidifier (7), the first outlet of the rotary dehumidifier (7) is connected to the second inlet of the condenser reheater (8), the first outlet of the condenser reheater (8) is connected to the inlet of the expansion valve (6), the second outlet of the condenser reheater (8) is connected to the inlet of the first heater (9), and the outlet of the first heater (9) is connected to the inlet of the blower (10); The outlet of the second air filter (11) is connected to the inlet of the second heater (12), the outlet of the second heater (12) is connected to the second inlet of the rotary dehumidifier (7), and the second outlet of the rotary dehumidifier (7) is connected to the inlet of the regeneration fan (13).

2. The energy-saving combined rotary dehumidifier system using condensation heat recovery technology and reheating according to claim 1 is characterized in that: The refrigerant stored in the evaporator (2), the compressor (3), the condenser (4), the three-way valve (5), the expansion valve (6) and the condenser reheater (8) is Freon.

3. The energy-saving combined rotary dehumidifier system using condensation heat recovery technology and reheating according to claim 1 is characterized in that: The rotary wheel in the rotary dehumidifier (7) is a honeycomb type rotary wheel carrying a moisture absorbent.

4. The energy-saving combined rotary dehumidifier system using condensation heat recovery technology and reheating according to claim 1 is characterized in that: The system is divided into a dehumidification zone and a regeneration zone. The dehumidification zone dehumidifies the air delivered to the room, and the regeneration zone removes the absorbed moisture from the rotary wheel so that the rotary dehumidifier continues to circulate.

5. The energy-saving combined rotary dehumidifier system using condensation heat recovery technology and reheating according to claim 1 is characterized in that: The air heated by the condenser reheater (8) may not reach the ideal temperature for delivery into the room, so it is reheated by the first heater (9) and delivered into the room by the blower (10).

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