Energy-saving rotating wheel dehumidification system

Abstract

The utility model discloses an energy-saving type rotating wheel dehumidification system which comprises a control device, a heat recovery device, a rotating wheel dehumidification unit and a heat pump mechanism, the rotating wheel dehumidification unit and the heat pump mechanism are respectively and electrically connected with the control device, the heat pump mechanism comprises a first evaporator, a second evaporator and a condenser, the first evaporator is connected with the condenser to form a first refrigeration cycle, and the second evaporator is connected with the condenser to form a second refrigeration cycle. The second evaporator is connected with the condenser to form a second refrigeration cycle; the first evaporator is arranged on the fresh air inlet side of the rotating wheel dehumidification unit, the second evaporator is arranged on the regeneration air exhaust side of the rotating wheel dehumidification unit, and the condenser is arranged on the regeneration air inlet side of the rotating wheel dehumidification unit. The heat recovery device is located on the air outlet side of the second evaporator and located on the air inlet side of the condenser. According to the energy-saving rotating wheel dehumidification system, the working states of the first evaporator and the second evaporator can be switched according to the external environment temperature, so that the system can continuously run for a long time all year round, the heat utilization efficiency is effectively improved, and the efficient energy-saving effect is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a rotating wheel dehumidification technical field, especially a kind of energy-saving rotating wheel dehumidification system. BACKGROUND

[0002] Rotary dehumidifier is an important branch in air conditioning field, plays a vital role in the place needing temperature and humidity control, for example, electronic industry, food production, bioengineering and medical health etc., and these industries have very strict control requirements to temperature and humidity;With the rapid development of science and technology, the concept of high efficiency and energy saving is more and more favored by people, and the regeneration heating energy consumption problem of rotary dehumidifier is increasingly concerned;At present, the regeneration heating mode of rotary dehumidifier is mainly high-energy-consumption electric heating or high-temperature steam mode, so in manufacturing industry, energy consumption optimization modification is particularly urgent.

[0003] At present, there are mainly two methods to solve the problem of high energy consumption:

[0004] One is to install heat recovery device at the regeneration exhaust, heat exchange between regeneration inlet air and regeneration exhaust, make full use of the waste heat of regeneration exhaust, and heat the regeneration inlet air, so as to reduce the energy consumption of regeneration heating;However, the energy-saving efficiency of this method is low, and the energy-saving effect is not very ideal;

[0005] Another method is to use heat pump system to heat and warm the regeneration inlet air to reduce the energy consumption of regeneration heating;But, winter climate has great influence on the continuous and stable operation of heat pump system, and even may cause heat pump system unable to start normally, so it fails to realize the continuous and efficient energy-saving operation effect.

[0006] It can be seen that the prior art needs to be improved and improved. CONTENT OF UTILITY MODEL

[0007] In view of the above shortcomings of prior art, the purpose of the utility model is to provide an energy-saving rotary dehumidification system, which can be operated continuously for a long time throughout the year, effectively improve the heat utilization efficiency, and achieve high efficiency and energy saving effect.

[0008] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0009] The energy-saving rotary dehumidification system comprises a control device, a heat recovery device, and a rotary dehumidifier unit and a heat pump mechanism electrically connected with the control device respectively, the heat pump mechanism comprises a first evaporator, a second evaporator and a condenser, the first evaporator is connected with the condenser to form a first refrigeration cycle, and the second evaporator is connected with the condenser to form a second refrigeration cycle; the first evaporator is arranged on the fresh air inlet side of the rotary dehumidifier unit, the second evaporator is arranged on the regeneration exhaust air side of the rotary dehumidifier unit, and the condenser is arranged on the regeneration air inlet side of the rotary dehumidifier unit; the heat recovery device is located on the air outlet side of the second evaporator and on the air inlet side of the condenser.

[0010] In the energy-saving rotary dehumidification system, the rotary dehumidifier unit comprises a first shell, the first shell is provided with a rotary wheel core and a regeneration heating box, the fresh air inlet side of the first shell is provided with an air valve, and the regeneration exhaust air side of the first shell is provided with an exhaust fan; the regeneration heating box is arranged on the regeneration air inlet side of the rotary wheel core and is used for further heating the regeneration air inlet of the rotary wheel core; the air valve, the exhaust fan and the regeneration heating box are electrically connected with the control device respectively.

[0011] In the energy-saving rotary dehumidification system, the first shell is further provided with a cold water coil, and the cold water coil is arranged on the air outlet side of the air valve.

[0012] In the energy-saving rotary dehumidification system, the heat pump mechanism further comprises a second temperature sensor, and the second temperature sensor is arranged on the air outlet side of the first evaporator; the rotary dehumidifier further comprises an adjusting valve and a third temperature sensor, the adjusting valve is connected with the water inlet end of the cold water coil, and the third temperature sensor is arranged on the air outlet side of the cold water coil; the second temperature sensor, the third temperature sensor and the adjusting valve are electrically connected with the control device respectively.

[0013] In the energy-saving rotary dehumidification system, the regeneration heating box is provided with a heating element, the air inlet side of the regeneration heating box is provided with a first temperature sensor, and the first temperature sensor and the heating element are electrically connected with the control device respectively.

[0014] In the energy-saving rotary dehumidification system, the heat pump mechanism further comprises a compressor and a three-way valve, the output end of the first evaporator is connected with the input end of the condenser through the compressor, the output end of the second evaporator is connected with the input end of the condenser, the output end of the condenser is connected with the input end of the first evaporator and the input end of the second evaporator through the three-way valve, and the compressor and the three-way valve are electrically connected with the control device respectively.

[0015] The energy-saving rotary dehumidification system further comprises a second shell, and the first evaporator, the second evaporator, the condenser and the heat recovery device are arranged in the second shell respectively; and the condenser, the second evaporator and the first evaporator are sequentially arranged from top to bottom.

[0016] The energy-saving rotary dehumidification system further comprises a second shell, and the first evaporator, the second evaporator, the condenser and the heat recovery device are arranged in the second shell respectively; and the condenser, the second evaporator and the first evaporator are sequentially arranged from top to bottom.

[0017] Beneficial effects:

[0018] The energy-saving rotary dehumidification system provided by the utility model can switch the working states of the first evaporator and the second evaporator according to the external environment temperature, so that the system can be long-term and continuously operated throughout the year, the heat utilization efficiency of the regenerative exhaust air is effectively improved, and the effect of high efficiency and energy saving is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The utility model provides an energy-saving rotary dehumidification system structure schematic view;

[0020] Main element symbol explanation: 1-heat recovery device, 2-rotary dehumidifier unit, 21-rotary wheel core, 22-regeneration heating box, 23-air valve, 24-exhaust fan, 25-cold water coil, 31-first evaporator, 32-second evaporator, 33-condenser, 34-compressor, 11-first shell, 12-second shell. DETAILED DESCRIPTION

[0021] The utility model provides an energy-saving rotary dehumidification system, in order to make the purpose, technical scheme and effect of the utility model more clear, explicit, the following refers to the attached drawing and holds example to this utility model to make further detailed explanation.

[0022] In the description of the utility model, it is understood that the terms "installation", "connection" and the like should be broadly understood, and those skilled in the art can understand the specific meaning of the above terms in the utility model according to specific circumstances.

[0023] Please refer to Figure 1The utility model provides a kind of energy-saving rotary dehumidification system, including control device, heat recovery device 1 and rotary dehumidifier unit 2 and heat pump mechanism respectively with the electric connection of the control device, the heat pump mechanism includes first evaporator 31, second evaporator 32 and condenser 33, the first evaporator 31 is connected with condenser 33 to form first refrigeration cycle, the second evaporator 32 is connected with condenser 33 to form second refrigeration cycle;The first evaporator 31 is arranged at the fresh air inlet side of the rotary dehumidifier unit 2, the second evaporator 32 is arranged at the regeneration exhaust side of the rotary dehumidifier unit 2, and the condenser 33 is arranged at the regeneration air inlet side of the rotary dehumidifier unit 2;The heat recovery device 1 is located at the air outlet side of the second evaporator 32 and is located at the air inlet side of the condenser 33.

[0024] The application discloses an energy-saving rotary dehumidification system. When the external environment is in summer or transition season, the heat recovery device 1 can recover the heat of the regeneration exhaust to heat the regeneration air inlet based on the first refrigeration cycle formed by the first evaporator 31 and the condenser 33. When the external environment is in winter, the heat recovery device 1 can fully recover the heat of the regeneration exhaust based on the second refrigeration cycle formed by the second evaporator 32 and the condenser 33. The energy-saving rotary dehumidification system can switch the working state of the first evaporator 31 and the second evaporator 32 according to the external environment temperature, so that the system can run continuously all year round, effectively improve the heat utilization efficiency of the regeneration exhaust, reduce the waste of heat, and reduce the electric heating energy consumption or steam heating consumption of the regeneration heating, thereby achieving the effect of high efficiency and energy saving.

[0025] Further, the rotary dehumidifier unit 2 includes a first housing 11, the first housing 11 is provided with a rotary wheel core 21 and a regeneration heating box 22, the fresh air inlet side of the first housing 11 is provided with a wind valve 23, and the regeneration exhaust side of the first housing 11 is provided with an exhaust fan 24; The regeneration heating box 22 is arranged at the regeneration air inlet side of the rotary wheel core 21, for further heating the regeneration air inlet of the rotary wheel core 21; The wind valve 23, the exhaust fan 24 and the regeneration heating box 22 are electrically connected with the control device respectively.

[0026] In the embodiment, the rotary wheel core 21 is the core component of the unit, and the regenerative heating box 22 is arranged on the regenerative air inlet side of the rotary wheel core 21, which can significantly improve the dehumidification efficiency of the regenerative air inlet in the regeneration area of the rotary wheel core 21, and ensure that the rotary wheel core 21 can work in the best state during the dehumidification process. The air valve 23 is arranged on the fresh air inlet side of the first shell 11, which is used to adjust the amount of fresh air inlet into the rotary wheel dehumidification unit 2, so as to ensure that the dehumidified air output by the rotary wheel dehumidification unit 2 can meet the air supply requirement and the positive pressure requirement of the use environment. The exhaust fan 24 is arranged on the regenerative air outlet side, which can ensure the air circulation in the rotary wheel dehumidification unit 2 and timely exhaust the humid and hot air generated in the regeneration process, so as to maintain the dryness and suitable working environment in the unit.

[0027] Further, the cold water coil 25 is arranged in the first shell 11, and the cold water coil 25 is arranged on the air outlet side of the air valve 23.

[0028] In the embodiment, the cold water coil 25 is arranged on the air outlet side of the air valve 23, and the heat in the fresh air inlet is absorbed by circulating cold water to reduce the air temperature, so as to realize the dehumidification effect of the air, that is, the further dehumidification of the fresh air inlet is realized before the fresh air inlet enters the rotary wheel core 21. Further, when in summer and transition season, the fresh air inlet is first subjected to the cooling and dehumidification treatment by the first evaporator 31 in the first refrigeration cycle, and then the pretreated fresh air inlet is input into the rotary wheel dehumidification unit 2, which plays a role of supplementing or replacing the cold water coil 25 in the rotary wheel dehumidification unit 2, reduces the consumption of chilled water of the rotary wheel dehumidification unit, and achieves the energy-saving effect.

[0029] Further, the heat pump mechanism further comprises a second temperature sensor arranged on the air outlet side of the first evaporator 31; the rotary wheel dehumidification unit further comprises an adjusting valve and a third temperature sensor, the adjusting valve is connected with the water inlet end of the cold water coil 25, and the third temperature sensor is arranged on the air outlet side of the cold water coil 25; the second temperature sensor, the third temperature sensor and the adjusting valve are electrically connected with the control device respectively.

[0030] In the embodiment, the second temperature sensor is used to obtain the air outlet temperature of the first evaporator 31, so as to monitor the working temperature of the first evaporator 31; the third temperature sensor is arranged on the air outlet side of the cold water coil 25, so as to detect the working temperature of the cold water coil 25; the control device can dynamically adjust the opening size of the adjusting valve according to the real-time air outlet temperature detected by the second temperature sensor and the third temperature sensor, so as to accurately control the dehumidification effect of the cold water coil 25, ensure that the humidity of the indoor air reaches the predetermined standard, and thus maintain the comfort and suitability of the indoor environment.

[0031] Further, the regenerative heating box 22 is provided with a heating element, and the air inlet side of the regenerative heating box 22 is provided with a first temperature sensor, and the first temperature sensor and the heating element are electrically connected with the control device respectively.

[0032] In the embodiment, the regenerative heating box 22 further heats the regenerative air inlet based on the principle of electric heating, and the control device can dynamically adjust the working power of the heating element according to the real-time air inlet temperature detected by the first temperature sensor, so as to accurately control the heating effect of the regenerative heating box 22, and ensure that the dehumidification effect of the regenerative air inlet on the rotary drum core 21 reaches the predetermined standard, and improve the stability and reliability of the rotary drum core 21 during operation.

[0033] Further, the heat pump mechanism further comprises a compressor 34 and a three-way valve, the output end of the first evaporator 31 is connected with the input end of the condenser 33 through the compressor 34, the output end of the second evaporator 32 is connected with the input end of the condenser 33, the output end of the condenser 33 is connected with the input end of the first evaporator 31 and the input end of the second evaporator 32 through the three-way valve respectively, and the compressor 34 and the three-way valve are electrically connected with the control device respectively.

[0034] In the embodiment, the compressor 34 can be a fixed frequency / variable frequency screw compressor 34, a fixed frequency / variable frequency scroll compressor 34 or a magnetic suspension centrifugal compressor 34.

[0035] In the embodiment, the working mode of the energy-saving rotary dehumidification system is as follows:

[0036] When in summer or transition season, the control device controls the conduction relationship of the three-way valve, so that the first refrigeration cycle composed of the first evaporator 31 and the condenser 33 is put into use, and at this time, the second evaporator 32 does not work; the first evaporator 31 performs cooling and dehumidification treatment on the fresh air inlet, and after the treatment, the air inlet enters the rotary dehumidification unit 2 through the air valve 23, and then is subjected to deep dehumidification treatment in the rotary dehumidification unit 2; the first evaporator 31 plays a role of supplementing or replacing the cold water coil 25 of the rotary dehumidification unit 2, and reduces the consumption of chilled water; the regenerative air inlet is subjected to heat exchange treatment with the regenerative exhaust air through the heat recovery device 1 first, the heat recovery device 1 performs temperature rising on the regenerative air inlet, and then the regenerative air inlet is subjected to temperature rising treatment to 85℃ through the condenser 33 again, and finally the regenerative air inlet is raised to 130℃ through the regenerative heating box 22, so as to perform desorption and cyclic regeneration on the rotary drum core 21, thereby achieving the effect of reducing the regenerative heating energy consumption.

[0037] When in winter, the winter fresh air temperature and humidity is low, without the need for cooling and dehumidification of fresh air, at this time, the control device adjusts the on-off relationship of the three-way valve, so that the second evaporator 32 and the condenser 33 constitute a second refrigeration cycle, the first evaporator 31 stops working; The high temperature regeneration exhaust gas discharged by the regeneration exhaust fan 24 is heat treated with the second evaporator 32, and then heat exchanged with the regeneration air through the heat recovery device 1, and finally discharged to the outdoor, so that the heat recovery energy saving effect is still achieved in winter, and the heat pump mechanism can still be continuously and stably operated in winter, and the stability of the heat pump mechanism during operation is improved.

[0038] Further, the energy-saving rotary dehumidification system further comprises a second shell 12, and the first evaporator 31, the second evaporator 32, the condenser 33 and the heat recovery device 1 are arranged in the second shell 12 respectively; The condenser 33, the second evaporator 32 and the first evaporator 31 are arranged in sequence from top to bottom.

[0039] Further, the heat recovery device 1 is a heat pipe or a plate type heat recovery coil; The heat pipe or the plate type heat recovery coil is arranged in the second shell 12 and located on the airflow path of the regeneration exhaust air, so that the heat in the regeneration exhaust air can be transferred to the regeneration air through the heat pipe or the plate type heat recovery coil, realizing heat recovery and reuse.

[0040] It can be understood that for those skilled in the art, equivalent replacement or change can be made according to the technical scheme and the utility model concept of the present utility model, and all these changes or replacements shall belong to the protection scope of the present utility model.

Claims

1. An energy saving rotary dehumidifying system, characterized by, The system comprises a control device, a heat recovery device, and a rotary dehumidifier unit and a heat pump mechanism electrically connected to the control device respectively, the heat pump mechanism comprises a first evaporator, a second evaporator and a condenser, the first evaporator is connected to the condenser to form a first refrigeration cycle, the second evaporator is connected to the condenser to form a second refrigeration cycle; the first evaporator is arranged on the fresh air inlet side of the rotary dehumidifier unit, the second evaporator is arranged on the regeneration air outlet side of the rotary dehumidifier unit, and the condenser is arranged on the regeneration air inlet side of the rotary dehumidifier unit; the heat recovery device is located on the air outlet side of the second evaporator and on the air inlet side of the condenser.

2. The energy saving rotary dehumidification system according to claim 1, wherein, The rotary dehumidifier unit comprises a first shell, a rotary wheel core and a regeneration heating box are arranged in the first shell, a wind valve is arranged on the fresh air inlet side of the first shell, and an air exhaust fan is arranged on the regeneration air outlet side of the first shell; the regeneration heating box is arranged on the regeneration air inlet side of the rotary wheel core and is used for further heating the regeneration air inlet of the rotary wheel core; the wind valve, the air exhaust fan and the regeneration heating box are electrically connected to the control device respectively.

3. The energy saving rotary dehumidification system according to claim 2, wherein, A cold water coil is further arranged in the first shell and located on the air outlet side of the wind valve.

4. The energy-saving rotary dehumidification system according to claim 3, wherein, The heat pump mechanism further comprises a second temperature sensor arranged on the air outlet side of the first evaporator; the rotary dehumidifier further comprises an adjusting valve connected to the water inlet end of the cold water coil and a third temperature sensor arranged on the air outlet side of the cold water coil; the second temperature sensor, the third temperature sensor and the adjusting valve are electrically connected to the control device respectively.

5. The energy saving rotary dehumidification system according to claim 2, wherein, A heating element is arranged in the regeneration heating box, a first temperature sensor is arranged on the air inlet side of the regeneration heating box, and the first temperature sensor and the heating element are electrically connected to the control device respectively.

6. The energy-efficient rotary dehumidification system of claim 1, wherein, The heat pump mechanism further comprises a compressor and a three-way valve, the output end of the first evaporator is connected to the input end of the condenser through the compressor, the output end of the second evaporator is connected to the input end of the condenser, the output end of the condenser is connected to the input end of the first evaporator and the input end of the second evaporator through the three-way valve, and the compressor and the three-way valve are electrically connected to the control device respectively.

7. The energy saving rotary dehumidification system according to claim 1, wherein, The system further comprises a second shell, the first evaporator, the second evaporator, the condenser and the heat recovery device are arranged in the second shell respectively; the condenser, the second evaporator and the first evaporator are arranged in sequence from top to bottom.

8. The energy-efficient rotary dehumidification system of claim 1, wherein, The heat recovery device is a heat pipe or a plate-type heat recovery coil.

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