CN212408886U - Dehumidification system and air conditioning box - Google Patents

Abstract

The application provides a dehumidification system and an air conditioning box. The dehumidification system comprises a regeneration module, a heat absorption device, a fan, a dehumidification module and a heat release device. The regeneration module comprises a dehumidifying medium, and the dehumidifying medium recovers dehumidifying capacity by absorbing moisture by mixed air formed by fresh air and return air. The heat absorption device comprises a working fluid, and the working fluid is changed from a liquid state to a gas state by absorbing the heat of the air passing through the regeneration module. A fan delivers air from the heat sink. The dehumidification module dehumidifies air from the fan. The heat releasing device is communicated with the heat absorbing device so that the working fluid circulates between the heat absorbing device and the heat releasing device to release heat, and the released heat heats air from the dehumidification module. The energy consumption of the dehumidification system and the air conditioning box is low.

Description

Dehumidification system and air conditioning box

Technical Field

The application relates to the technical field of dehumidification, especially, relate to dehumidification system and air conditioning cabinet.

Background

The dehumidification system of the air conditioning cabinet comprises a dehumidification rotor, in some cases, air with a very low dew point temperature is required, thus the outlet air temperature of the dehumidification rotor is also very low, and if the air is delivered to a room, the requirement of comfort is not met. In order to meet the requirement of comfort, the air of the dehumidifying rotating wheel needs to be reheated, and the reheating consumes energy, so that the requirement of comfort on the air reheating of the dehumidifying rotating wheel is met, and the requirement of energy conservation is met.

Disclosure of Invention

The application provides a dehumidification system and air conditioning box, the wind energy that dehumidification system and air conditioning box sent out reaches the requirement of travelling comfort, moreover, the energy consumption of dehumidification system and air conditioning box is low.

To achieve the above object, embodiments of the present application disclose a dehumidification system. The dehumidification system comprises a regeneration module, a heat absorption device, a fan, a dehumidification module and a heat release device. The regeneration module comprises a dehumidifying medium, and the dehumidifying medium recovers dehumidifying capacity by absorbing moisture by mixed air formed by fresh air and return air. The heat absorption device comprises a working fluid, and the working fluid is changed from a liquid state to a gas state by absorbing the heat of the air passing through the regeneration module. A fan delivers air from the heat sink. The dehumidification module dehumidifies air from the fan. The heat releasing device is communicated with the heat absorbing device so that the working fluid circulates between the heat absorbing device and the heat releasing device to release heat, and the released heat heats the air from the dehumidification module.

Optionally, the heat sink is located between the regeneration module and the fan.

Optionally, the heat sink is located between the fan and the dehumidification module.

Optionally, the dehumidification system includes a refrigeration device, the heat absorption device is located between the fan and the refrigeration device, the refrigeration device cools and dehumidifies air from the fan, and the cooled and dehumidified air flows to the dehumidification module so that the dehumidification module dehumidifies air from the fan and passing through the refrigeration device.

Optionally, the refrigeration device is a refrigeration coil comprising cold water from a chiller.

Optionally, the dehumidification system includes preheating device, preheating device preheats the mixed air that new trend and return air constitute, the mixed air that preheats passes through regeneration module.

Optionally, the heat absorbing device and the heat releasing device are heat pipes, and the regeneration module and the dehumidification module form a dehumidification rotating wheel, or the regeneration module and the dehumidification module are communicated and include a liquid dehumidification medium flowing between the regeneration module and the dehumidification module.

The embodiment of this application still discloses an air conditioning cabinet. The air conditioning cabinet includes any of the aforementioned dehumidification systems.

Optionally, the air conditioning cabinet comprises an upper frame and a lower frame, the upper frame comprises a fresh air inlet and a return air inlet, and the lower frame comprises an air supply outlet. The heat absorption device is positioned on the upper layer frame, the heat release device is positioned on the lower layer frame, the air conditioning box comprises a pump, and the pump is communicated with the heat release device and the heat absorption device and conveys working liquid of the heat release device to the heat absorption device; alternatively, the heat sink and the heat sink are both located on the lower frame.

Optionally, the air conditioning cabinet comprises an upper frame and a lower frame, the upper frame comprises an air supply outlet, and the lower frame comprises a fresh air inlet and a return air inlet. The heat absorbing device and the fan are positioned on the lower layer frame, and the heat releasing device is positioned on the upper layer frame, or the heat absorbing device and the heat releasing device are both positioned on the lower layer frame.

Compared with the mode of arranging the reheating coil, because the heat in the dehumidification system is used for reheating the air sent to the air supply outlet, the energy utilization rate of the dehumidification section of the air conditioning system is improved, the energy consumption is reduced on the premise of ensuring the air supply working condition, the dehumidification system can be used in various occasions needing dehumidification, in addition, because the heat absorption device reduces the temperature of mixed air transmitted to the dehumidification device by absorbing the heat of the mixed air, therefore, under the condition that the dehumidification function of the dehumidification module of the dehumidification system is stronger and a refrigeration device is not needed, the refrigeration load of the dehumidification module can be reduced under the condition that the dehumidification system comprises a refrigeration device, the refrigeration load of the refrigeration device can be reduced, particularly, under the condition that the refrigeration device is a refrigeration coil, the refrigeration load of the refrigeration coil can be reduced, the required refrigeration capacity is reduced, and the power consumption of a water chilling unit is saved.

Drawings

FIG. 1 is a schematic view of an air conditioning cabinet;

FIG. 2 is a schematic view of a first air conditioning cabinet of the present application;

FIG. 3 is a schematic view of a second air conditioning cabinet of the present application;

FIG. 4 is a schematic view of another air conditioning cabinet;

FIG. 5 is a schematic view of a third air conditioning cabinet of the present application;

fig. 6 is a schematic view of a fourth air conditioning cabinet of the present application.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus consistent with certain aspects of the present application, as detailed in the appended claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The use of the terms "a" or "an" and the like in the description and in the claims of this application do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "plurality" includes two, and is equivalent to at least two. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

Referring to fig. 1, an air conditioning cabinet 1a includes an upper frame 11a and a lower frame 11 b. The upper frame 11a includes a fresh air valve 111a and a return air valve 112 a. The lower frame 11b includes a blower outlet 113 a. The dehumidification system of the air conditioning box comprises a preheating coil 1, a dehumidification rotating wheel 2, a fan 3, a refrigeration coil 4 and a reheating coil 5. The preheating coil 1 preheats the mixed air. The mixed air is composed of the fresh air passing through the fresh air valve 111a and the return air passing through the return air valve 112 a. In some embodiments, the dehumidification system may not include a preheating coil 1, and in the case of including a preheating coil 1, the preheating coil 1 can improve the dehumidification performance of the dehumidification system. The desiccant rotor 2 includes a regeneration area 21 and a desiccant area 22. The mixed air preheated by preheating coil 1 absorbs moisture from regeneration zone 21 so that regeneration zone 21 recovers dehumidification capacity. In the case of a dehumidification system not including preheating coil 1, the moisture in regeneration zone 21 is absorbed by the mixed air of return air from return valve 112a and fresh air from fresh air valve 111 a. The fan 3 blows the mixed air passing through the regeneration zone 21 toward the refrigerating coil 4. The cooling coil 4 dehumidifies and cools the air from the fan 3, and the dehumidified and cooled air is transmitted to the dehumidification section 22 of the desiccant rotor 2, and is further dehumidified, such as isenthalpic dehumidification, by the dehumidification section 22, thereby obtaining relatively dry air. Since the supply air temperature in some working conditions is low, it is necessary to reheat the relatively dry air to a comfortable temperature, as shown in fig. 1, one way is to reheat the dry air by providing a reheating coil 5, and the reheated air is output to the outside of the air conditioning box through the supply air outlet 113a, for example, to a room. Reheating air through the reheat coil 5 requires additional energy consumption, and therefore, the dehumidification system is high in energy consumption.

In order to reduce the energy consumption of the dehumidification system, the inventor of the present application has studied the following technical solutions: the heat of the dehumidification system is recycled to reheat the air, so that the purpose of energy conservation is achieved, and the scheme is as follows: a heat absorption device and a heat release device communicated with the heat absorption device are arranged in the dehumidification system, and both the heat absorption device and the heat release device comprise working liquid. The heat absorbing device absorbs heat from mixed air in the dehumidification system to enable the working liquid to be evaporated and become gaseous, the heat releasing device releases heat and condenses to enable the working liquid to be changed from the gaseous state to the liquid state, and the heat released by the heat releasing device heats the air and sends the air to the outside of the dehumidification system, such as a room. In the following, such a dehumidification system is described as follows:

referring to fig. 2, fig. 2 illustrates an air conditioning cabinet 100. The air conditioning case 100 includes an upper frame 100a and a lower frame 100 b. The upper frame 100a includes a fresh air inlet provided with a fresh air valve 101a and a return air inlet provided with a return air valve 101 b. The lower frame 100b includes a blowing port 101 c. The skilled person will appreciate that in other embodiments, the upper frame 100a and the lower frame 100b may be placed side by side. Compared with the dehumidification system shown in fig. 1, the dehumidification system mainly differs in that: the heat absorbing device 103 and the heat releasing device 107 are additionally arranged, and in some cases, the dehumidification rotor 2 can be realized by adopting a module which can realize the same function as the dehumidification rotor 2, and based on the function, the dehumidification system comprises the regeneration module 102 and the dehumidification module 106. The following describes the configuration and operation of the dehumidification system based on the above components:

the air conditioning box 100 includes a preheating device 101, a regeneration module 102, a heat absorbing device 103, a fan 104, a refrigerating device 105, a dehumidification module 106, and a heat releasing device 107. In some cases, the dehumidification system 100 may not include the preheating device 101. The preheating device 101 is used for preheating mixed air, and the mixed air mainly comprises fresh air from a fresh air valve 101a and return air from a return air valve 101 b. The structure of the preheating device 101 is not limited as long as the preheating function can be achieved, for example, a coil pipe can be used.

The regeneration module 102 includes a dehumidifying medium, and the dehumidifying medium recovers dehumidifying capability by absorbing moisture by a mixed air composed of fresh air and return air. In some embodiments, the regeneration module 102 and the dehumidification module 106 cooperate to perform both regeneration and dehumidification functions, for example, the regeneration module 102 and the dehumidification module 106 form a dehumidification wheel; for another example, the regeneration module 102 and the dehumidification module 106 are communicated and include a liquid dehumidification medium, and the liquid dehumidification medium flows between the regeneration module 102 and the dehumidification module 106 to achieve the purposes of regeneration and dehumidification, and of course, the regeneration module 102 and the dehumidification module 106 may have other structures as long as the two functions of dehumidification and regeneration can be achieved.

The heat absorbing device 103 is not limited in structure, and can absorb heat of the mixed air passing through the regeneration module 102, such as a heat pipe or other heat exchanger. In some embodiments, the heat sink 103 is located between the regeneration module 102 and the fan 104.

The fan 104 delivers the air passing through the heat sink 103 to the cooling device 105.

The cooling device 105 is used for cooling and dehumidifying air from the fan 104, and the cooled and dehumidified air flows to the dehumidifying module 106. The structure of the refrigeration device 105 is not limited as long as the purpose of cooling and dehumidifying can be achieved, and in some embodiments, the refrigeration device 105 is a refrigeration coil. The refrigeration coil includes cold water from the chiller unit. The refrigeration device 105 and the dehumidification module 106 cooperate to dehumidify air, for example, after the refrigeration device 5 cools and dehumidifies air, the dehumidification module 106 dehumidifies air again in an isenthalpic manner to obtain dry air. In the case of a high dehumidification capacity of the dehumidification module 106, the dehumidification system may not include the refrigeration device 5. In the case of including the cooling device 5, the cooling device 5 can enhance the effect of dehumidification.

The heat releasing device 107 is in communication with the heat absorbing device 103 such that the working fluid circulates between the heat absorbing device 103 and the heat releasing device 107 to release heat, and the released heat heats the air from the dehumidification module 106. The heat sink 107 is not limited in structure, such as a heat pipe or other heat exchanger. The heat sink 103 is used for heat absorption and evaporation in various embodiments, and the heat sink 107 is used for heat emission and condensation in various embodiments, and the heat pipes are used in pairs in general, so the heat sink 103 can be regarded as the heat pipe of the pair of heat pipes which plays a role of evaporation, and the heat sink 107 can be regarded as the heat pipe of the pair of heat pipes which plays a role of condensation.

In the dehumidification system and the air conditioning box of the above embodiment, since the heat absorbing device 103 and the heat releasing device 107 are provided, and the heat absorbing device 103 is communicated with the heat releasing device 107, when the preheating device 101 is included, the heat absorbing device 103 absorbs heat of air preheated by the preheating device 101 and passing through the regeneration module 102, and when the preheating device 101 is not included, heat of mixed air composed of fresh air and return air is absorbed, the heat absorbing device 103 absorbs heat to evaporate the working fluid, the evaporated working fluid flows to the heat releasing device 107, the heat releasing device 107 releases heat and condenses, and the released heat reheats air (which can also be understood as regeneration air) downstream of the dehumidification module 106. Compared with the mode of arranging the reheating coil 5, the reheated air is output and sent through the air supply opening 101c, because the heat in the dehumidification system is utilized for reheating (for example, when the heat absorption device 103 and the heat release device 107 are not arranged, the heat is wasted by the refrigeration coil 4), the energy utilization rate of the dehumidification section of the air conditioning system is improved, the energy consumption is reduced on the premise of ensuring the air supply working condition, the air conditioning system can be used in various occasions needing dehumidification, in addition, because the heat absorption device 103 reduces the temperature of the mixed air transmitted to the refrigeration device 105 by absorbing the heat of the mixed air, the refrigeration load of the refrigeration device 105 can be reduced, particularly, when the refrigeration device 105 is a refrigeration coil, the refrigeration load of the refrigeration coil can be reduced, the required refrigeration amount is reduced, and the power consumption of a cold water unit is saved. Of course, it can be understood by the skilled person that in the case that the dehumidification function of the dehumidification module 106 of the dehumidification system is strong and the refrigeration device 105 is not required, the temperature of the mixed air is reduced because the heat absorption device 103 absorbs heat, and thus, the refrigeration load of the dehumidification module 106 can also be reduced.

Referring to fig. 2, in the above embodiment, the heat sink 103 is located on the upper frame 100a, and the heat sink 107 is located on the lower frame 100 b. The heat absorbing device 103 absorbs heat and evaporates, the heat releasing device 107 releases heat and condenses, and in order to realize the flow of the working fluid, the air conditioning box comprises a pump 108, and the pump 108 conveys the working fluid of the heat releasing device 107 to the heat absorbing device 103.

Referring to FIG. 3, another dehumidification system 200 is disclosed. The dehumidification system 200 differs from the dehumidification system 100 in that: in the dehumidification system 100, the heat sink 103 is located between the regeneration module 102 and the fan 104, while in the dehumidification system 200, the heat sink 103 is located between the fan 104 and the refrigeration device 105. Of course, the skilled person will appreciate that the heat sink 103 is located between the fan 104 and the dehumidification module 106 without the inclusion of the refrigeration device 105. Compared with the heat absorption device 103 which is arranged between the fan 104 and the regeneration module 102 and the heat absorption device 103 which is arranged between the fan 104 and the refrigerating device 105 or between the fan 104 and the dehumidification module 106, the heat absorption device has good airflow uniformity, is beneficial to heat exchange, and can also reduce the length of the unit. Referring to fig. 3 in conjunction with fig. 2, in this embodiment, the heat sink 103 and the heat sink 107 are located on the same level (lower frame 100b) and, therefore, the pump 108 is not required.

Referring to fig. 4, fig. 1 illustrates an air conditioning cabinet 1b, and the dehumidification system shown in fig. 4 includes the same functional components as the dehumidification system shown in fig. 1, except that: the positions of the supplied air, the returned air and the fresh air are different, so that the same reference numerals are used for the components with the same function, and more specifically, in the dehumidification system shown in fig. 4, the preheating coil 1, the regeneration area 21 of the dehumidification rotor 2 and the fan 3 are located in the lower frame. The refrigerating coil 4, the dehumidifying area 22 of the desiccant rotor 2, and the reheating coil 5 are located on the upper frame. In the air conditioning unit 1b, return air from the return air valve 112a and fresh air from the fresh air valve 111a enter from the lower frame 11b, and are processed and blown from the blowing port 113a of the upper frame 11 a.

The dehumidification system of fig. 4 requires additional energy consumption for reheating air through the reheating coil 5 due to the reheating coil 5, and thus, the dehumidification system has high energy consumption.

The solution of adding the heat absorbing device 103 and the heat releasing device 107 in the dehumidification system can still solve the problem of high energy consumption of the dehumidification system shown in fig. 4. Further explanation is as follows:

referring to fig. 5, the dehumidification system of an air conditioner 300 may include components having the same functions as those of the dehumidification system of the air conditioning cabinet 100. In the dehumidification system 300, the upper frame 100a includes an air supply outlet 101c, and the lower frame 100b includes a fresh air inlet and a return air inlet. Fresh air and return air are supplied from the lower frame 100b to the outside of the air conditioning box, for example, a room, through the processed air supply port 101c of the upper frame 100 a. The preheating device 101, the regeneration module 102, the heat absorbing device 103 and the fan 104 are positioned on the lower frame 100b, the refrigerating device 105, the dehumidifying module 106 and the heat releasing device 107 are positioned on the upper frame 100a, and the heat absorbing device 103 is positioned between the fan 104 and the regeneration module 102. Referring to fig. 5 in conjunction with fig. 2, in the dehumidification system 300, the working fluid of the heat sink 103 absorbs heat to evaporate, and the working fluid of the heat sink 107 releases heat to condense, so that the working fluid can circulate by gravity without the pump 108. In this embodiment, the refrigeration device 105 may not be provided if the dehumidification module 106 has a good dehumidification capacity.

Referring to fig. 6, the present application also discloses another dehumidification system of an air-conditioning box 400, wherein the dehumidification system of the air-conditioning box 400 is different from the dehumidification system of the air-conditioning box 300 in that: the heat sink 103 is located between the fan 104 and the refrigeration unit 105. The skilled person will appreciate that the air conditioning cabinet 400 may also not comprise a cooling device 105, in which case the heat sink 103 is located between the fan 104 and the dehumidification module 106.

The air-conditioning cabinet 200, the air-conditioning cabinet 300, the air-conditioning cabinet 400 and the respective dehumidification systems thereof are provided with the heat absorbing device 103 and the heat releasing device 107, which are the same as the air-conditioning cabinet 100, and heat is reheated by using heat in the dehumidification system, so that the energy utilization rate of the dehumidification section of the air-conditioning system is improved, low energy consumption is reduced on the premise of ensuring the air supply working condition, and the air-conditioning system can be used in various occasions needing dehumidification, in addition, the heat absorbing device 103 reduces the temperature of mixed air by absorbing the heat of the mixed air, so that the refrigeration load of the refrigeration device 105 can be reduced, particularly, under the condition that the refrigeration device 105 is a refrigeration coil, the refrigeration load of the refrigeration coil can be reduced, the required refrigeration amount is reduced, and the power consumption of a cold water unit is.

The above description is only for the purpose of illustrating the preferred embodiments of the present application and is not to be construed as limiting the present application, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present application should be included in the scope of the present application.

Claims (10)

1. A dehumidification system, comprising:

the regeneration module comprises a dehumidifying medium, and the dehumidifying medium recovers the dehumidifying capacity by absorbing moisture by mixed air formed by fresh air and return air,

the heat absorption device comprises working liquid, and the working liquid is changed into a gas state from a liquid state by absorbing the heat of the air passing through the regeneration module;

a fan that delivers air from the heat sink;

a dehumidification module that dehumidifies air from the fan;

and the heat releasing device is communicated with the heat absorbing device so that the working fluid circulates between the heat absorbing device and the heat releasing device to release heat, and the released heat heats the air from the dehumidification module.

2. The dehumidification system of claim 1, wherein the heat sink is positioned between the regeneration module and the fan.

3. Dehumidification system according to claim 1, wherein said heat absorption means are located between said fan and said dehumidification module.

4. The dehumidification system of claim 1, comprising a refrigeration device, the heat sink being positioned between the fan and the refrigeration device, the refrigeration device cooling and dehumidifying air from the fan, the cooled and dehumidified air flowing to the dehumidification module such that the dehumidification module dehumidifies air from the fan passing through the refrigeration device.

5. A dehumidification system according to claim 4, wherein the refrigeration device is a refrigeration coil comprising cold water from a chiller.

6. A dehumidification system as claimed in any one of claims 1 to 5, comprising a pre-heating means for pre-heating a mixture of fresh air and return air, said pre-heated mixture being passed through said regeneration module.

7. Dehumidification system according to any one of claims 1 to 5, wherein said heat absorption means and said heat release means are heat pipes, respectively, and said regeneration module and dehumidification module constitute a desiccant wheel, or wherein said regeneration module and dehumidification module are in communication and comprise a liquid desiccant medium flowing between said regeneration module and said dehumidification module.

8. An air conditioning cabinet, characterized in that it comprises a dehumidification system according to any one of claims 1 to 7.

9. An air conditioning cabinet as set forth in claim 8 including an upper frame including a fresh air inlet and a return air inlet, and a lower frame including a supply air outlet;

the heat absorption device is positioned on the upper layer frame, the heat release device is positioned on the lower layer frame, the air conditioning box comprises a pump, and the pump is communicated with the heat release device and the heat absorption device and conveys working liquid of the heat release device to the heat absorption device;

alternatively, the heat sink and the heat sink are both located on the lower frame.

10. An air conditioning cabinet as set forth in claim 8 including an upper frame including supply air outlets and a lower frame including fresh air and return air inlets;

the heat absorbing device and the fan are positioned on the lower layer frame, and the heat releasing device is positioned on the upper layer frame, or the heat absorbing device and the heat releasing device are both positioned on the lower layer frame.

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