Energy-saving low-dew-point air supply rotating wheel dehumidification constant-temperature unit

Abstract

The utility model relates to the field of refrigeration air conditioners, in particular to an energy-saving low-dew-point air supply rotating wheel dehumidification constant-temperature unit which comprises a double-rotating-wheel dehumidification system and a refrigeration system. The double-rotating-wheel dehumidification system comprises a fresh air inlet, a fresh air valve, a first filter, a first surface air cooler, an evaporator, a first rotating wheel, a processing fan, a second filter, a second surface air cooler, a second rotating wheel, a second condenser and an air supply valve which are sequentially connected in the fresh air flowing direction. The refrigerating system comprises a first loop and a second loop, fresh air sequentially passes through a compressor, a first flow regulating valve, a first condenser, an electronic expansion valve and an evaporator when passing through the first loop, and the fresh air sequentially passes through the compressor, a second flow regulating valve, a second condenser, the electronic expansion valve and the evaporator when passing through the second loop. The requirements of low-dew-point production workshops for environment constant temperature control can be met, and the purposes of energy conservation and consumption reduction are achieved.

Description

Technical Field

[0001] The utility model relates to the field of refrigeration and air conditioning, and more specifically to an energy-saving low-dew-point air supply rotary dehumidification constant temperature unit. Background Art

[0002] Currently, the electronics, chemical, food, and lithium battery manufacturing industries are increasingly demanding higher humidity levels. The humidity of the air in the production environment of some precision products, such as lithium batteries, significantly impacts product quality. Therefore, production lines have particularly high requirements for low humidity, generally controlled at 1RH%. To achieve this standard, a rotary dehumidifier is used to lower the supply air dew point to -60°C dp, delivering large quantities of low-humidity, dry air into the production workshop. Low-dew-point production workshops typically rely on rotary adsorption dehumidifiers for air treatment. To achieve optimal dehumidification, manufacturers often use two-stage rotary adsorption systems in series. Utility Model Content

[0003] The utility model aims to provide an energy-saving low dew point air supply rotary dehumidification constant temperature unit, which can meet the requirements of low dew point production workshops for environmental constant temperature control and achieve the goal of energy saving and consumption reduction.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] An energy-saving low dew point air supply rotary dehumidification constant temperature unit includes a dual-rotor dehumidification system and a refrigeration system. The dual-rotor dehumidification system includes a fresh air inlet, a fresh air valve, a first filter, a first surface cooler, an evaporator, a first rotor, a processing fan, a second filter, a second surface cooler, a second rotor, a second condenser and a supply air valve connected in sequence along the fresh air flow direction, and enters a production workshop;

[0006] The refrigeration system includes a first circuit and a second circuit. When the fresh air passes through the first circuit, it passes through the compressor, the first flow regulating valve, the first condenser, the electronic expansion valve and the evaporator in sequence. When the fresh air passes through the second circuit, it passes through the compressor, the second flow regulating valve, the second condenser, the electronic expansion valve and the evaporator in sequence.

[0007] The first rotor includes a first treatment zone and a second regeneration zone, and the second rotor includes a second treatment zone, a cooling zone and a first regeneration zone;

[0008] A regeneration branch is provided between the second surface cooler and the second rotor, and the regeneration branch sequentially connects the cooling zone, the first regeneration heater, the first regeneration zone, the second regeneration heater, the second regeneration zone, the regeneration fan and the exhaust outlet along the fresh air flow direction;

[0009] A return air port is provided between the first rotor and the processing fan, and the return air port is connected to the production workshop through a return air duct, and a return air valve is provided on the return air duct;

[0010] The evaporator is arranged between the first surface cooler and the first rotor, and the second condenser is arranged after the second rotor;

[0011] The compressor is a DC variable frequency compressor;

[0012] The first condenser is a water-cooled condenser;

[0013] The first flow regulating valve and the second flow regulating valve are respectively arranged in front of the first condenser and the second condenser, and are used to control and distribute the refrigerant flow of the first circuit and the second circuit.

[0014] The beneficial effects of the utility model are:

[0015] Through the combination of a dual-circuit refrigeration system and a dual-rotor dehumidification system, the condenser is used to heat and adjust the temperature of the treated low-dew-point air to ensure the heating requirements of the air delivered to the room, while also achieving the goal of energy saving and consumption reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0017] Figure 1 It is a structural schematic diagram of the energy-saving low dew point air supply rotor dehumidification constant temperature unit of the present utility model.

[0018] In the figure: fresh air inlet 1; fresh air valve 2; first filter 3; first surface cooler 4; evaporator 5; compressor 6; first condenser 7; first rotor 8; first treatment area 81; second regeneration area 82; second rotor 9; second treatment area 91; cooling area 92; first regeneration area 93; treatment fan 10; second filter 11; second surface cooler 12; second condenser 13; regeneration branch 14; first regeneration heater 15; second regeneration heater 16; regeneration fan 17; exhaust outlet 18; first flow regulating valve 21; second flow regulating valve 22; electronic expansion valve 23; supply air valve 29; production workshop 30; return air duct 31; return air valve 32. DETAILED DESCRIPTION

[0019] The present invention will be described in further detail below with reference to the accompanying drawings.

[0020] like Figure 1 As shown, in order to achieve the technical effect of "meeting the requirements of low dew point production workshops for constant temperature control of the environment and achieving the goal of energy saving and consumption reduction", the structure and function of an energy-saving low dew point air supply rotary dehumidification constant temperature unit are described in detail below;

[0021] An energy-saving low dew point air supply rotary dehumidification constant temperature unit includes a dual-rotor dehumidification system and a refrigeration system. The dual-rotor dehumidification system includes a fresh air inlet 1, a fresh air valve 2, a first filter 3, a first surface cooler 4, an evaporator 5, a first rotor 8, a processing fan 10, a second filter 11, a second surface cooler 12, a second rotor 9, a second condenser 13 and a supply air valve 29 connected in sequence along the fresh air flow direction, and enters a production workshop 30;

[0022] The refrigeration system includes a first circuit and a second circuit. When the fresh air passes through the first circuit, it passes through the compressor 6, the first flow regulating valve 21, the first condenser 7, the electronic expansion valve 23 and the evaporator 5 in sequence. When the fresh air passes through the second circuit, it passes through the compressor 6, the second flow regulating valve 22, the second condenser 13, the electronic expansion valve 23 and the evaporator 5 in sequence.

[0023] During operation, the fresh air passes through the first surface cooler 4 and the evaporator 5 for cooling and dehumidification, then passes through the first rotor 8 for dehumidification before passing through the second surface cooler 12 for cooling and dehumidification, and then passes through the second rotor 9 for further dehumidification to the set low humidity requirement. The compressor 6 of the refrigeration system transfers part of the heat recovered by the evaporator 5 to the second condenser 13, which is used to heat the low-humidity air after dehumidification by the second rotor 9. Therefore, the energy required for heating after dehumidification by the second rotor 9 utilizes the heat recovered by the second condenser 13 of the refrigeration system, which greatly reduces energy consumption compared with traditional commonly used electric heating.

[0024] The first rotor 8 includes a first treatment zone 81 and a second regeneration zone 82, and the second rotor 9 includes a second treatment zone 91, a cooling zone 92 and a first regeneration zone 93;

[0025] A regeneration branch 14 is provided between the second surface cooler 12 and the second rotor 9, and the regeneration branch 14 sequentially connects the cooling zone 92, the first regeneration heater 15, the first regeneration zone 93, the second regeneration heater 16, the second regeneration zone 82, the regeneration fan 17 and the exhaust outlet 18 along the fresh air flow direction;

[0026] A return air port is provided between the first rotor 8 and the processing fan 10, and the return air port is connected to the production workshop 30 through a return air duct 31, and a return air valve 32 is provided on the return air duct 31;

[0027] The evaporator 5 is provided between the first surface cooler 4 and the first rotor 8, and the second condenser 13 is provided after the second rotor 9;

[0028] The compressor 6 is a DC variable frequency compressor; through the stepless adjustment of the capacity of the compressor 6, the refrigeration and dehumidification capacity of the refrigeration system can be adjusted at any time to ensure that the moisture content is stable regardless of how the outdoor climate parameters change;

[0029] The first condenser 7 is a water-cooled condenser;

[0030] The first flow regulating valve 21 and the second flow regulating valve 22 are respectively provided before the first condenser 7 and the second condenser 13, and are used to control and distribute the refrigerant flow of the first circuit and the second circuit;

[0031] By adjusting the opening of the first flow regulating valve 21 and the second flow regulating valve 22, the refrigerant flow of the second condenser 13 can be controlled while ensuring stable operation of the refrigeration system, thereby controlling the temperature of the low-humidity air entering the production workshop 30 and ensuring the low humidity and constant temperature requirements of the production workshop 30.

[0032] This document uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. An energy-saving low dew point air supply rotary dehumidification constant temperature unit, comprising a dual rotary dehumidification system and a refrigeration system, characterized by: The dual-rotor dehumidification system comprises a fresh air inlet (1), a fresh air valve (2), a first filter (3), a first surface cooler (4), an evaporator (5), a first rotor (8), a treatment fan (10), a second filter (11), a second surface cooler (12), a second rotor (9), a second condenser (13) and an air supply valve (29) connected in sequence along the fresh air flow direction, and enters a production workshop (30); The refrigeration system comprises a first circuit and a second circuit. When fresh air passes through the first circuit, it passes through a compressor (6), a first flow regulating valve (21), a first condenser (7), an electronic expansion valve (23) and an evaporator (5) in sequence. When fresh air passes through the second circuit, it passes through a compressor (6), a second flow regulating valve (22), a second condenser (13), an electronic expansion valve (23) and an evaporator (5) in sequence.

2. The energy-saving low dew point air supply rotor dehumidification constant temperature unit according to claim 1, characterized in that: The first rotor (8) includes a first treatment zone (81) and a second regeneration zone (82), and the second rotor (9) includes a second treatment zone (91), a cooling zone (92) and a first regeneration zone (93).

3. The energy-saving low dew point air supply rotor dehumidification constant temperature unit according to claim 2, characterized in that: A regeneration branch (14) is provided between the second surface cooler (12) and the second rotor (9).

4. The energy-saving low dew point air supply rotor dehumidification constant temperature unit according to claim 3, characterized in that: The regeneration branch (14) is connected to the cooling zone (92), the first regeneration heater (15), the first regeneration zone (93), the second regeneration heater (16), the second regeneration zone (82), the regeneration fan (17) and the exhaust outlet (18) in sequence along the fresh air flow direction.

5. The energy-saving low dew point air supply rotor dehumidification constant temperature unit according to claim 1, characterized in that: An air return port is provided between the first rotor (8) and the processing fan (10), and the air return port is connected to the production workshop (30) through a return air duct (31).

6. The energy-saving low dew point air supply rotor dehumidification constant temperature unit according to claim 5, characterized in that: The return air duct (31) is provided with a return air valve (32).

7. The energy-saving low dew point air supply rotor dehumidification constant temperature unit according to claim 1, characterized in that: The evaporator (5) is arranged between the first surface cooler (4) and the first rotor (8), and the second condenser (13) is arranged after the second rotor (9).

8. The energy-saving low dew point air supply rotor dehumidification constant temperature unit according to claim 1, characterized in that: The compressor (6) is a DC variable frequency compressor.

9. The energy-saving low dew point air supply rotor dehumidification constant temperature unit according to claim 1, characterized in that: The first condenser (7) is a water-cooled condenser.

10. The energy-saving low dew point air supply rotary dehumidification constant temperature unit according to claim 1, characterized in that: The first flow regulating valve (21) and the second flow regulating valve (22) are respectively arranged before the first condenser (7) and the second condenser (13), and are used to control and distribute the refrigerant flow of the first circuit and the second circuit.

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