Dehumidification system with adjustable dehumidification amount and air conditioner

Abstract

The utility model relates to the technical field of heating ventilation air conditioners, and discloses a dehumidification system with adjustable dehumidification capacity and an air conditioner, and the system comprises an indoor fan, a first heat exchanger, a second heat exchanger, an adjusting expansion valve, a control module, an outdoor unit and a dehumidification branch. The second heat exchanger is used for conducting heat exchange with indoor air to obtain first indoor air, the first heat exchanger is used for conducting heat exchange with the first indoor air to obtain second indoor air, and the indoor fan is used for conveying the second indoor air into a room. The control module is connected with the outdoor unit, the adjusting expansion valve, the dehumidification branches and the indoor draught fan and used for adjusting the opening degree of the adjusting expansion valve, the branch operation number of the dehumidification branches and the dehumidification rotating speed of the indoor draught fan. The problems that when an existing dehumidification system conducts dehumidification, the indoor temperature is lowered, the dehumidification amount cannot be adjusted, and the dehumidification efficiency is not high are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to heating ventilation air conditioning technical field especially relates to a dehumidification system and air conditioner of adjustable dehumidification capacity. BACKGROUND

[0002] In prior art, most air conditioners generally adopt fixed mode of weak refrigeration dehumidification, in the mode, indoor temperature will gradually reduce when the air conditioner runs. However, when indoor humidity is high, indoor humidity and indoor temperature need to be adjusted to realize rapid dehumidification, and the dehumidification capacity is large, but the dehumidification efficiency of weak refrigeration dehumidification mode is not high, the intelligent degree is low, and the dehumidification adjustment speed of the mode is slow, and indoor humidity does not change much in a short time, leading to the decrease of indoor environment comfort. SUMMARY

[0003] The utility model discloses a dehumidification system and air conditioner of adjustable dehumidification capacity to solve one or more technical problems in prior art, at least provide a beneficial choice or create conditions.

[0004] The utility model discloses a dehumidification system and air conditioner of adjustable dehumidification capacity to solve one or more technical problems in prior art, at least provide a beneficial choice or create conditions.

[0005] The utility model discloses a dehumidification system and air conditioner of adjustable dehumidification capacity to solve one or more technical problems in prior art, at least provide a beneficial choice or create conditions.

[0006] One end of the first heat exchanger is communicated with the outdoor unit, and the other end of the first heat exchanger is communicated with one end of the adjusting expansion valve.

[0007] The dehumidification branch is provided with at least two paths, and the other end of the adjusting expansion valve is communicated with one end of the dehumidification branch.

[0008] One end of the second heat exchanger is communicated with the outdoor unit, and the other end of the second heat exchanger is communicated with the other end of the dehumidification branch.

[0009] The air inlet of the indoor fan is directed to the first heat exchanger, and the air outlet of the indoor fan is directed to the indoor.

[0010] The second heat exchanger is used for heat exchange with indoor air to obtain first indoor air, the first heat exchanger is used for heat exchange with the first indoor air to obtain second indoor air, and the indoor fan is used for conveying the second indoor air to the indoor.

[0011] The control module is connected with the outdoor unit, the regulating expansion valve, the dehumidification branch and the indoor fan respectively, and is used for adjusting the opening of the regulating expansion valve, the number of branch operation of the dehumidification branch and the dehumidification rotating speed of the indoor fan.

[0012] Further, the dehumidification branch comprises a shunt pipeline, a dehumidification electromagnetic valve and a shunt device.

[0013] One end of the dehumidification electromagnetic valve is communicated with the other end of the regulating expansion valve, the other end of the dehumidification electromagnetic valve is communicated with one end of the shunt device, the other end of the shunt device is communicated with one end of the shunt pipeline, the other end of the shunt pipeline is communicated with the second heat exchanger, and the dehumidification electromagnetic valve is connected with the control module.

[0014] Further, the dehumidification system with adjustable dehumidification capacity further comprises a total pipeline, an air pipeline and a liquid pipeline.

[0015] One end of the first heat exchanger is communicated with the outdoor unit through the liquid pipeline, one end of the second heat exchanger is communicated with one end of the air pipeline through the total pipeline, and the other end of the air pipeline is communicated with the outdoor unit.

[0016] Further, the outdoor unit comprises a compressor, a condenser, a four-way valve and an air-liquid separator.

[0017] The exhaust end of the compressor is communicated with the first port of the four-way valve, the second port of the four-way valve is communicated with one end of the condenser, and the other end of the condenser is communicated with the liquid pipeline.

[0018] The suction end of the compressor is communicated with the third port of the four-way valve through the air-liquid separator, the fourth port of the four-way valve is communicated with the air pipeline, and the compressor and the four-way valve are connected with the control module.

[0019] Further, the outdoor unit further comprises a main electronic expansion valve.

[0020] One end of the main electronic expansion valve is communicated with the condenser, the other end of the main electronic expansion valve is communicated with the liquid pipeline, and the main electronic expansion valve is connected with the control module.

[0021] Further, at least two shunt interfaces are arranged on the shunt device, and the shunt interfaces are communicated with one end of the shunt pipeline.

[0022] Further, the dehumidification system with adjustable dehumidification capacity further comprises a reheating pipeline.

[0023] One end of the reheating pipeline is connected with the other end of the first heat exchanger, and the other end of the reheating pipeline is communicated with one end of the regulating expansion valve.

[0024] Further, the indoor fan is a direct-current variable-speed fan.

[0025] Further, the indoor fan is an alternating-current variable-speed fan.

[0026] The second aspect of the utility model provides a kind of air conditioner, including the dehumidification system of the dehumidification amount adjustable of the embodiment of the first aspect of the utility model.

[0027] The utility model has the advantages that: the indoor unit is composed of indoor heat exchanger and indoor fan, the indoor heat exchanger is composed of first heat exchanger and second heat exchanger, and at least two dehumidification branch circuits are arranged to connect the first heat exchanger and the second heat exchanger, indoor air is processed by the second heat exchanger, the first heat exchanger and the indoor fan in sequence, and the number of operation of the dehumidification branch circuit can be adjusted by the control module, so as to adjust the dehumidification amount, so as to adjust the indoor humidity when the indoor humidity fluctuates, carry out constant temperature dehumidification, and cooperate with the dehumidification speed of the indoor fan to carry out air volume adjustment, realize rapid dehumidification, improve the dehumidification adjustment speed, rapidly adjust the indoor humidity, achieve better dehumidification efficiency, improve the comfort degree of indoor environment and the intelligent degree of dehumidification adjustment. BRIEF DESCRIPTION OF DRAWINGS

[0028] Fig. 1 is a part structure schematic view of the dehumidification system of the dehumidification amount adjustable provided by the utility model one embodiment;

[0029] Fig. 2 is a part structure schematic view of the dehumidification system of the dehumidification amount adjustable provided by the utility model another embodiment;

[0030] Fig. 3 is the dehumidification flow path schematic view of the dehumidification system of the dehumidification amount adjustable provided by the utility model one embodiment.

[0031] Reference signs: 100, first heat exchanger, 200, second heat exchanger, 300, regulating expansion valve, 400, dehumidification branch circuit, 410, flow divider, 420, dehumidification electromagnetic valve, 430, flow dividing pipeline, 500, indoor fan, 600, outdoor unit, 610, compressor, 620, condenser, 630, main electronic expansion valve, 640, four-way valve, 650, gas-liquid separator, 700, liquid pipe, 710, gas pipe, 720, main pipe, 730, reheating pipeline. DETAILED DESCRIPTION

[0032] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and should not be construed as limiting the scope of this invention.

[0033] It should be noted that although functional modules are divided in the system diagram, in some cases, the steps shown or described may be executed in a different order than the module division in the system or the flowchart. The terms "first," "second," etc., in the specification, claims, and the aforementioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0035] Reference Figs. 1-3 In some embodiments of the first aspect of this utility model, a dehumidification system with adjustable dehumidification capacity includes: a second heat exchanger 200, a dehumidification branch 400, an adjusting expansion valve 300, a first heat exchanger 100, an indoor fan 500, an outdoor unit 600, and a control module.

[0036] One end of the first heat exchanger 100 is connected to the outdoor unit 600, and the other end of the first heat exchanger 100 is connected to one end of the regulating expansion valve 300. The first heat exchanger 100 can perform heat exchange processing on the first indoor air output by the second heat exchanger 200 and output the second indoor air.

[0037] The first heat exchanger 100 is capable of performing heat exchange treatments such as heating or cooling on the first indoor air.

[0038] The other end of the regulating expansion valve 300 is connected to one end of the dehumidification branch circuit 400, and at least two dehumidification branch circuits 400 are provided. That is, the regulating expansion valve 300 is connected to one end of at least two dehumidification branch circuits 400.

[0039] One end of the second heat exchanger 200 is connected to the outdoor unit 600, and the other end of the second heat exchanger 200 is connected to the other end of the dehumidification branch 400. The other end of the second heat exchanger 200 is also connected to the other ends of at least two dehumidification branch lines 400, thus dividing the second heat exchanger 200 into multiple dehumidification loops. The second heat exchanger 200 can perform heat exchange processing on indoor air and output the first indoor air.

[0040] The indoor air fan 500 is located at one side of the first heat exchanger 100, the second heat exchanger 200 is located at the other side of the first heat exchanger 100, the air inlet of the indoor air fan 500 faces the first heat exchanger 100, the air outlet of the indoor air fan 500 faces the indoor, and the indoor air fan 500 can output the second indoor air output by the second heat exchanger 200 to the indoor.

[0041] The indoor air fan 500 can be a direct-current variable-speed fan or an alternating-current variable-speed fan.

[0042] In an embodiment, the indoor air fan 500 can also mix the first indoor air after heat exchange of the first heat exchanger 100 and the second indoor air after heat exchange of the second heat exchanger 200, and deliver to the indoor.

[0043] According to the direction of the air flow path, the second heat exchanger 200, the first heat exchanger 100 and the indoor air fan 500 are sequentially arranged, the air first passes through the second heat exchanger 200, then passes through the first heat exchanger 100, and finally passes through the indoor air fan 500 to blow to the indoor.

[0044] The control module is connected with the at least two dehumidification branches 400, and the control module can control the number of branches of the dehumidification branches 400.

[0045] Exemplarily, when the indoor humidity is large and the difference between the indoor humidity and the target humidity is greater than the set threshold value, it is considered that the dehumidification demand is large, the control module drives the at least two dehumidification branches 400 to operate, and the dehumidification amount is increased to quickly dehumidify.

[0046] The control module is connected with the indoor air fan 500, and the control module can control the dehumidification speed of the indoor air fan 500 to adjust the air supply amount of the indoor air fan 500 to the indoor.

[0047] Exemplarily, when the indoor humidity is large and the difference between the indoor humidity and the target humidity is greater than the set threshold value, it is considered that the dehumidification demand is large, the control module drives the at least two dehumidification branches 400 to operate, and the control module also reduces the dehumidification speed of the indoor air fan 500 to increase the dehumidification amount, so that the indoor humidity reaches the target humidity faster, the dehumidification adjustment speed is improved, and the rapid dehumidification and the dehumidification efficiency are improved.

[0048] In the prior art, there is a certain time delay in the adjustment process of adjusting the dehumidification amount by adjusting the number of operating dehumidification branches 400. If the current dehumidification amount is large, the dehumidification branch 400 cannot respond quickly, and the dehumidification efficiency is not high. Compared with the control of the dehumidification branch 400, the response speed of the indoor air fan 500 is faster. Therefore, by adjusting the number of operating dehumidification branches 400 and the dehumidification speed of the indoor air fan 500, the air supply amount of the indoor air fan 500 is used to adjust the indoor humidity in advance during the reaction time delay of the dehumidification branch 400, and the dehumidification efficiency is improved.

[0049] The control module is also connected with the outdoor unit 600 and the regulating expansion valve 300, and the control module can control the opening degree of the regulating expansion valve 300 to realize the regulation of the dehumidification amount.

[0050] By the dehumidification system in the embodiment, the indoor heat exchanger and the indoor fan 500 form an indoor unit, the first heat exchanger 100 and the second heat exchanger 200 form the indoor heat exchanger, and at least two dehumidification branches 400 are arranged to communicate the first heat exchanger 100 and the second heat exchanger 200, and the indoor air is processed in sequence through the second heat exchanger 200, the first heat exchanger 100 and the indoor fan 500.

[0051] By the control module, the number of the dehumidification branches 400 in operation can be regulated, so as to regulate the dehumidification amount, to realize the regulation of the indoor humidity when the indoor humidity fluctuates, to carry out constant-temperature dehumidification, and to cooperate with the adjustment of the dehumidification rotating speed of the indoor fan 500 to carry out air volume regulation, to realize rapid dehumidification, to improve the dehumidification regulation speed, to rapidly regulate the indoor humidity, to achieve a more optimal dehumidification efficiency, and to improve the comfort degree of the indoor environment and the intelligent degree of the dehumidification regulation.

[0052] With reference to Figs. 1-3 In some embodiments of the first aspect of the utility model, the dehumidification branch 400 comprises: a flow divider 410, a flow dividing pipeline 430 and a dehumidification electromagnetic valve 420.

[0053] One end of the dehumidification electromagnetic valve 420 is communicated with the other end of the regulating expansion valve 300, the other end of the dehumidification electromagnetic valve 420 is communicated with one end of the flow divider 410, the dehumidification electromagnetic valve 420 is connected with the control module, and the control module can control the opening and closing of the dehumidification electromagnetic valve 420 to control the on-off of the single dehumidification branch 400, to realize the operation or stop of the single dehumidification branch 400.

[0054] The other end of the flow divider 410 is communicated with one end of the flow dividing pipeline 430, and the other end of the flow dividing pipeline 430 is communicated with the other end of the second heat exchanger 200.

[0055] The flow divider 410 is communicated with one end of the flow dividing pipeline 430 through the flow dividing interface.

[0056] That is to say, two or more dehumidification branches 400 are connected between the second heat exchanger 200 and the regulating expansion valve 300, and the dehumidification electromagnetic valve 420 is communicated with the second heat exchanger 200 through the flow divider 410 and the flow dividing pipeline 430.

[0057] In the prior art, the shunt pipeline 430 is communicated with the second heat exchanger 200 through an electromagnetic valve, so that the pipeline layout in the indoor heat exchanger is too complicated, and the installation space in the indoor heat exchanger is usually small, the electromagnetic valve is installed in front of the shunt device 410, the pressure drop of the system at the shunt point is reduced, the pipeline and control are simplified, and the installation space of the indoor heat exchanger is met.

[0058] Referring to Figs. 1-3 In some embodiments of the first aspect of the utility model, the dehumidification system further comprises: a total pipe 720, a reheating pipeline 730, an air pipe 710 and a liquid pipe 700.

[0059] One end of the first heat exchanger 100 is connected with one end of the liquid pipe 700, and the other end of the liquid pipe 700 is communicated with the outdoor unit 600. One end of the second heat exchanger 200 is communicated with one end of the total pipe 720, the other end of the total pipe 720 is communicated with one end of the air pipe 710, and the other end of the air pipe 710 is communicated with the outdoor unit 600.

[0060] One end of the reheating pipeline 730 is communicated with the other end of the first heat exchanger 100, and the other end of the reheating pipeline 730 is connected with the other end of the regulating expansion valve 300.

[0061] Referring to Figs. 1-3 In some embodiments of the first aspect of the utility model, the outdoor unit 600 comprises: a compressor 610, a main electronic expansion valve 630, a condenser 620, a four-way valve 640 and a gas-liquid separator 650.

[0062] The exhaust end of the compressor 610 is communicated with the first port of the four-way valve 640, the second port of the four-way valve 640 is communicated with one end of the condenser 620, the other end of the condenser 620 is communicated with one end of the main electronic expansion valve 630, and the other end of the main electronic expansion valve 630 is communicated with the other end of the liquid pipe 700, so that the other end of the condenser 620 is communicated with the other end of the liquid pipe 700 through the main electronic expansion valve 630.

[0063] The main electronic expansion valve 630 is connected with a control module, the control module can control the opening degree of the main electronic expansion valve 630, and mode switching of the dehumidification system is realized.

[0064] The suction end of the compressor 610 is communicated with one end of the gas-liquid separator 650, the other end of the gas-liquid separator 650 is communicated with the third port of the four-way valve 640, and the fourth port of the four-way valve 640 is communicated with the other end of the air pipe 710.

[0065] The control module is connected with the compressor 610, and the control module can control the operating frequency of the compressor 610 to adjust the dehumidification amount.

[0066] The control module is connected with the four-way valve 640, and the control module can control the opening and closing of the ports of the four-way valve 640 to realize mode switching of the dehumidification system.

[0067] In an embodiment, when the dehumidification system is running in the dehumidification mode, the refrigerant is compressed into high-temperature and high-pressure gas by the compressor 610, enters the condenser 620 through the four-way valve 640, and is cooled into a high-pressure gas-liquid mixture or liquid. The high-pressure gas-liquid mixture or liquid passes through the main electronic expansion valve 630, the opening degree of the main electronic expansion valve 630 is full opening without throttling, and the high-pressure gas-liquid mixture or liquid is sent to the first heat exchanger 100 through the liquid pipe 700. The first heat exchanger 100 performs heat exchange processing, and the second indoor air is obtained by increasing the temperature, thereby realizing indoor constant temperature. The reheat pipe 730 enters the regulating expansion valve 300 to be throttled into a low-temperature and low-pressure gas-liquid mixture, and the dehumidification circuit is running, and the low-temperature and low-pressure gas-liquid mixture is sent to the first heat exchanger 100. The first heat exchanger 100 performs heat exchange processing, and the first indoor air is obtained by decreasing the temperature. Since the temperature of the first heat exchanger 100 is low, the indoor air humidity is supersaturated and condensate is condensed and separated, thereby realizing indoor dehumidification.

[0068] In the dehumidification process, the first heat exchanger 100 and the second heat exchanger 200 respectively perform indoor heating and indoor refrigeration, thereby achieving the purpose of constant temperature dehumidification. Through the control module, the frequency of the compressor 610, the opening degree of the regulating expansion valve 300 and the opening and closing of the dehumidification electromagnetic valve 420 in the dehumidification circuit are adjusted, thereby controlling the cold capacity of the second heat exchanger 200 and the number of dehumidification circuits, and the purpose of adjusting the dehumidification amount is realized.

[0069] Exemplarily, when the indoor humidity is large, and the difference between the indoor humidity and the target humidity is greater than a set threshold value, it is considered that the dehumidification demand is large, at least two dehumidification branches 400 are driven to run by the control module, that is, at least two dehumidification electromagnetic valves 420 are opened, the control module also reduces the dehumidification rotating speed of the indoor fan 500, increases the dehumidification amount, makes the indoor humidity reach the target humidity faster, improves the dehumidification adjustment speed, realizes rapid dehumidification and improves the dehumidification efficiency. The control module can also increase the frequency of the compressor 610 and increase the opening degree of the regulating expansion valve 300, thereby realizing rapid dehumidification.

[0070] When the indoor humidity reaches the target humidity, it is considered that the dehumidification demand is small, the frequency of the compressor 610 is reduced, the opening degree of the regulating expansion valve 300 is reduced, the rotating speed of the indoor fan 500 is increased, and at least one dehumidification branch 400 is driven to be cut off, that is, at least one dehumidification electromagnetic valve 420 is closed, the dehumidification circuit is changed, the dehumidification amount is adjusted, and the indoor humidity is kept constant.

[0071] The working principle and application method of such a system, such as the dehumidification system increasing the liquid accumulator, the liquid cooling drive board, the jet economizer and other system auxiliary modes and the indoor unit side increasing other functional sections and adjusting the order of the functional sections are within the protection scope of the utility model;

[0072] The compressor variable frequency or fixed frequency and oil or oil-free series, including piston, rotor, scroll, screw, centrifugal, magnetic suspension, gas suspension and other compressors are within the protection scope of the utility model;

[0073] By using the principle, the condensation heat dissipation mode includes air cooling, water cooling, direct (indirect) evaporation condensation, condensation heat storage or various combination forms and the like, which are within the protection scope of the utility model;

[0074] By using the principle, the evaporation heat absorption mode includes direct evaporation cooling air, direct evaporation cooling water, direct evaporation heat storage or various combination forms and the like, which are within the protection scope of the utility model.

[0075] The air conditioner in the second aspect of the embodiments of the utility model comprises the dehumidification system with adjustable dehumidification capacity in the first aspect of the embodiments of the utility model.

[0076] The skilled in the art can realize the utility model in various modification schemes without departing from the range and essence of the utility model, for example, the features of one embodiment can be used in another embodiment to obtain another embodiment. The preferred embodiments of the embodiments of the disclosure are described above with reference to the drawings, and the disclosure is not limited to the above. Any modification, equivalent replacement and improvement made by the skilled in the art within the range and essence of the embodiments of the disclosure should be within the scope of the embodiments of the disclosure.

Claims

1. A dehumidification system with adjustable dehumidification amount, characterized in that, Comprising: The indoor fan, the first heat exchanger, the second heat exchanger, the regulating expansion valve, the control module, the outdoor unit and the dehumidification branch; One end of the first heat exchanger is in communication with the outdoor unit, and the other end of the first heat exchanger is in communication with one end of the regulating expansion valve; The dehumidification branch is provided with at least two paths, and the other end of the regulating expansion valve is in communication with one end of the dehumidification branch; One end of the second heat exchanger is in communication with the outdoor unit, and the other end of the second heat exchanger is in communication with the other end of the dehumidification branch; The air inlet of the indoor fan is directed to the first heat exchanger, and the air outlet of the indoor fan is directed to the indoor; The second heat exchanger is used for heat exchange with indoor air to obtain first indoor air, the first heat exchanger is used for heat exchange with the first indoor air to obtain second indoor air, and the indoor fan is used for conveying the second indoor air to the indoor; The control module is connected with the outdoor unit, the regulating expansion valve, the dehumidification branch and the indoor fan respectively, and is used for adjusting the opening degree of the regulating expansion valve, the number of branch operation of the dehumidification branch and the dehumidification rotating speed of the indoor fan.

2. The dehumidification system with adjustable dehumidification capacity according to claim 1, wherein, The dehumidification branch comprises: a shunt pipeline, a dehumidification electromagnetic valve and a shunt device; One end of the dehumidification electromagnetic valve is in communication with the other end of the regulating expansion valve, the other end of the dehumidification electromagnetic valve is in communication with one end of the shunt device, the other end of the shunt device is in communication with one end of the shunt pipeline, the other end of the shunt pipeline is in communication with the second heat exchanger, and the dehumidification electromagnetic valve is connected with the control module.

3. The dehumidification system with adjustable dehumidification capacity according to claim 1, wherein, Further comprising: A main pipe, an air pipe and a liquid pipe; One end of the first heat exchanger is in communication with the outdoor unit through the liquid pipe, one end of the second heat exchanger is in communication with one end of the air pipe through the main pipe, and the other end of the air pipe is in communication with the outdoor unit.

4. The dehumidification system with adjustable dehumidification capacity according to claim 3, wherein, The outdoor unit comprises: a compressor, a condenser, a four-way valve and a gas-liquid separator; The exhaust end of the compressor is in communication with the first port of the four-way valve, the second port of the four-way valve is in communication with one end of the condenser, and the other end of the condenser is in communication with the liquid pipe; The suction end of the compressor is in communication with the third port of the four-way valve through the gas-liquid separator, the fourth port of the four-way valve is in communication with the air pipe, and the compressor and the four-way valve are connected with the control module.

5. The dehumidification system with adjustable dehumidification capacity according to claim 4, wherein, The outdoor unit further comprises: a main electronic expansion valve; One end of the main electronic expansion valve is in communication with the condenser, the other end of the main electronic expansion valve is in communication with the liquid pipe, and the main electronic expansion valve is connected with the control module.

6. The dehumidification system with adjustable dehumidification capacity according to claim 2, wherein, The shunt device is provided with at least two shunt interfaces, and the shunt interfaces are in communication with one end of the shunt pipeline.

7. The dehumidification system with adjustable dehumidification capacity according to claim 1, wherein, Further comprising: A reheating pipeline; One end of the reheating pipeline is connected with the other end of the first heat exchanger, and the other end of the reheating pipeline is in communication with one end of the regulating expansion valve.

8. The dehumidification system with adjustable dehumidification capacity according to claim 1, wherein, The indoor fan is a direct-current variable-speed fan.

9. The dehumidification system with adjustable dehumidification capacity according to claim 1, wherein, The indoor fan is an alternating-current variable-speed fan.

10. An air conditioner characterized by comprising: Comprising: The dehumidification system with adjustable dehumidification capacity according to any one of claims 1 to 9.

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