Energy-saving single-rotating-wheel dehumidifier system

Abstract

The utility model relates to the technical field of rotary wheel dehumidifiers, in particular to an energy-saving single rotary wheel dehumidifier system. The system comprises a dehumidification rotating wheel device, a dehumidification rotating wheel device air processing system connected to one end, and a regeneration air system connected to the other end of the dehumidification rotating wheel device. The air treatment system comprises a fresh air inlet end, a return air inlet end, a first surface air cooler arranged on the rear side of the return air inlet end, a dehumidification rotating wheel device connected with the first surface air cooler, an evaporator arranged on the rear side of the first surface air cooler and a pre-cooling section treatment device arranged between the first surface air cooler and the return air inlet end. And the reheating section treatment device is arranged on the rear side of the evaporator. The utility model has the beneficial effects that the evaporator is additionally arranged at the rear end of the first surface air cooler, so that the absolute moisture content of air before entering the dehumidification rotating wheel is reduced; energy recovery devices are additionally arranged at the front end of the first surface air cooler and the rear end of the evaporator, and the refrigerating capacity needed by the first surface air cooler for treating air is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary dehumidifiers, in particular to an energy-saving single rotary dehumidifier system. Background Art

[0002] During the production of lithium batteries, each process needs to be precisely controlled, and very high requirements are placed on temperature, humidity, and cleanliness. Rotary dehumidifiers are usually used to control the temperature and humidity of the lithium battery production environment. The energy consumption cost of rotary dehumidifiers is huge.

[0003] In the prior art, when a single-rotor dehumidifier unit processes air, it first uses a surface cooler for preliminary cooling and dehumidification to reduce the moisture load on the wheel and the energy consumption of the wheel's regeneration heating; then it uses the wheel for adsorption and dehumidification to further reduce the moisture content of the air. After the wheel absorbs moisture, it needs to be regenerated by high-temperature air of 100-140°C before it can continue to dehumidify. The heating of the regenerated air consumes a lot of heat. In this process, the energy consumption of the surface cooler and the energy consumption of the regeneration heating account for more than 90% of the unit's energy consumption. The energy consumption is extremely high, and there is a waste problem of the cold and hot energy consumption offsetting each other. Therefore, it is necessary to design an energy-saving rotary dehumidifier system to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide an energy-saving single-rotor dehumidifier system to overcome the above-mentioned deficiencies in the current prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] 14. The heat dissipation controller of claim 13, wherein the heat dissipation controller is configured to control the flow of heat from the dehumidifier to the cooling fan, the heat dissipation controller being configured to control the flow of heat from the dehumidifier to the cooling fan. The heat dissipation controller is configured to control the flow of heat from the dehumidifier to the cooling fan, the heat dissipation controller being configured to control the flow of heat from the dehumidifier to the cooling fan.

[0007] Preferably, a blower is connected to the rear side of the second cooler.

[0008] Preferably, the evaporator and the condenser are interconnected to form a loop, and a compressor and a control unit are also provided therebetween.

[0009] Preferably, the pre-cooling section processing device and the reheating section processing device are connected to each other.

[0010] The beneficial effects of the utility model are as follows: the technical scheme reduces the absolute moisture content of the air before entering the dehumidification wheel by adding an evaporator at the rear end of the first cooler, and the moisture content of the air processed by the wheel is reduced while the regeneration heating temperature is reduced; an energy recovery device is added at the front end of the first cooler and the rear end of the evaporator to reduce the cooling capacity required for the first cooler to process the air; a condenser is installed at the front end of the regeneration heater to use the condensation heat of the heat pump system to preheat the regenerated fresh air, thereby reducing the energy consumption of regeneration heating. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of an energy-saving single-rotor dehumidifier system of the utility model;

[0012] In the figure: 1. Dehumidification wheel device; 2. Fresh air inlet end; 3. Return air inlet end; 4. First surface cooler; 5. Second surface cooler; 6. Evaporator; 7. Pre-cooling section treatment device; 8. Reheating section treatment device; 9. Regeneration heater; 10. Condenser; 11. Second fresh air inlet end; 12. Air blower; 13. Compressor; 14. Control unit. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0014] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0015] Reference Figure 1 , an energy-saving single-rotor dehumidifier system, comprising a dehumidification rotor device 1, an air treatment system connected to one end of the dehumidification rotor device, and a regeneration air system connected to the other end of the dehumidification rotor device;

[0016] The air treatment system comprises a fresh air inlet 2 disposed at the end, a return air inlet 3 connected to the fresh air inlet, a first surface cooler 4 disposed at the rear side of the return air inlet, a dehumidification wheel device connected to the first surface cooler, and a second surface cooler 5 disposed at the rear side of the dehumidification wheel device;

[0017] The air treatment system further includes an evaporator 6 disposed at the rear side of the first surface cooler, a pre-cooling section processing device 7 disposed between the first surface cooler and the return air inlet end, and a reheating section processing device 8 disposed at the rear side of the evaporator;

[0018] The regeneration air system includes a regeneration heater 9 connected to the dehumidification wheel device, a condenser 10 arranged at the front end of the regeneration heater, and a second fresh air inlet 11 arranged at the front end of the condenser;

[0019] In order to facilitate the gas delivery, a blower 12 is connected to the rear side of the second cooler;

[0020] The evaporator and the condenser are connected to each other to form a loop, and a compressor 13 and a control unit 14 are also arranged between them;

[0021] The pre-cooling section processing device 7 and the reheating section processing device 8 are connected to each other.

[0022] The configuration of the evaporator, condenser and other components of the heat pump system should be selected according to the air volume, temperature and other parameters of the rotary dehumidifier system to ensure that the heat pump system can operate stably and maximize the energy saving effect of the rotary dehumidifier;

[0023] The configuration of the energy recovery processing device needs to be selected according to the air volume, temperature parameters and evaporator temperature of the rotary dehumidifier system, so as to maximize the heat recovery amount while ensuring that the dehumidification effect of the dehumidification rotary wheel is not affected.

[0024] In this implementation case, the dehumidification wheel processes 30000CMH of fresh air volume, 15000CMH of fresh air volume, 15000CMH of return air volume, and 7500CMH of regeneration air volume. The design fresh air temperature and humidity are 35.2℃, 28.5g / kga, and the design return air temperature and humidity are 23.0℃, 5.2g / kga. Due to the limitation of condensing air volume and condensing temperature, the condensing air volume of this system is the regeneration air volume, and the maximum design outlet air temperature of the condenser is 80℃. Under this condition, the maximum heat dissipation of the condenser is Q3, specifically Q3=cmΔt=1.01*1.2*7500 / 3600*(80-35)=114kW;

[0025] Under this condensing condition, the maximum cooling capacity of the evaporator is 88kW, the evaporator air inlet state is G, the corresponding evaporator design air outlet state is C, and the temperature is 8.2℃ / 100%;

[0026] Air treatment system: mixed air M (29.2℃ / 66%) is pre-cooled to B (22.6℃ / 97%) by energy recovery, and then cooled and dehumidified to G (12℃ / 100%) by the first surface cooler. The air out of the first surface cooler is cooled and dehumidified to C (8.2℃ / 100%) by the evaporator, and then heated to E (14.9℃ / 64%) by energy recovery before being sent to the dehumidification wheel for dehumidification.

[0027] Regeneration air side: The regeneration fresh air P (35.2℃) is heated to Q (80℃) by the condenser, and then heated to S (120℃) by the regeneration heater. Due to the reduction of the wet load of the rotor, the regeneration temperature is reduced from 130℃ to 120℃;

[0028] According to the system working conditions, the temperature entering the rotor should not be too high and should not exceed 18°C, otherwise it will affect the dehumidification effect of the rotor, thereby increasing additional energy consumption. The efficiency of the energy recovery section in this working condition needs to be controlled within 35%. According to the 32% temperature efficiency selection, the heat recovery capacity is 68kW;

[0029] In this system, the energy recovery pre-cooling load is 68kW, and the cooling capacity of the first surface cooler is reduced by 68kW. The energy recovery section can be referred to the figure below.

[0030] The regeneration heating energy consumption of the original rotary dehumidifier is 241kW. The regeneration temperature of the rotary dehumidifier in this system is reduced. The energy consumption of the regeneration fresh air heater in this system is Q5=101kW, which is reduced by 140kW.

[0031] Q5=1.01*1.2*7500 / 3600*(120-80)=101kW

[0032] This system adds an evaporator, and the evaporator cooling capacity is 88kW;

[0033]

[0034]

[0035] The above analysis is only for the energy saving under this working condition. The energy recovery section, i.e. the configuration of the heat pump system, required under different design conditions is different, and the energy saving under different operating conditions is also different.

[0036] The benefits of the utility model are as follows: the technical solution reduces the absolute moisture content of the air before entering the dehumidification wheel by adding an evaporator at the rear end of the first cooler, and the moisture content of the air processed by the wheel is reduced while the regeneration heating temperature is reduced; an energy recovery device is added at the front end of the first cooler and the rear end of the evaporator to reduce the cooling capacity required for the first cooler to process the air; a condenser is installed at the front end of the regeneration heater to use the condensation heat of the heat pump system to preheat the regeneration fresh air, thereby reducing the energy consumption of regeneration heating.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An energy-saving single-rotor dehumidifier system, comprising a dehumidification wheel device, an air treatment system connected to one end of the dehumidification wheel device, and a regeneration air system connected to the other end of the dehumidification wheel device, wherein the air treatment system comprises a fresh air inlet end disposed at an end, a return air inlet end connected to the fresh air inlet end, a first surface cooler disposed at the rear side of the return air inlet end, a dehumidification wheel device connected to the first surface cooler, and a second surface cooler disposed at the rear side of the dehumidification wheel device, characterized in that: The air treatment system also includes an evaporator arranged on the rear side of the first surface cooler, a pre-cooling section processing device arranged between the first surface cooler and the return air inlet end, and a reheat section processing device arranged on the rear side of the evaporator. The regeneration air system includes a regeneration heater connected to the dehumidification wheel device, a condenser arranged at the front end of the regeneration heater, and a second fresh air inlet end placed at the front end of the condenser.

2. The energy-saving single-rotor dehumidifier system according to claim 1, characterized in that: A blower is connected to the rear side of the second cooler.

3. The energy-saving single-rotor dehumidifier system according to claim 1, characterized in that: The evaporator and the condenser are connected to each other to form a loop, and a compressor and a control unit are also arranged between them.

4. The energy-saving single-rotor dehumidifier system according to claim 1, characterized in that: The precooling section processing device and the reheating section processing device are connected to each other.

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