CN116792827A - Cooling and dehumidification system - Google Patents

Abstract

The invention relates to the technical field of dehumidification, in particular to a cooling and dehumidifying system, and aims to solve the problem of low energy utilization rate of the existing cooling and dehumidifying system. To this end, the cooling and dehumidifying system of the present invention includes a rotating wheel dehumidifier and a first heat pump unit, the rotating wheel dehumidifier including a rotating wheel, a dehumidifying passage, and a regenerating passage, a part of the rotating wheel being located in the dehumidifying passage, another part of the rotating wheel being located in the regenerating passage, the rotating wheel being configured to rotate such that the respective parts of the rotating wheel pass through the dehumidifying passage and the regenerating passage in sequence; the first heat pump unit comprises a first evaporator and a first condenser, wherein the first evaporator is arranged on the air inlet side of the dehumidification channel so as to absorb heat and reduce the temperature of air flowing to the rotating wheel; the first condenser is configured to release heat, and the released heat is used for heating air on the air inlet side of the regeneration channel, so that the energy utilization efficiency can be greatly improved, and the energy consumption of the cooling and dehumidifying system can be reduced.

Description

Cooling and dehumidification system

Technical field

The present invention relates to the technical field of dehumidification, and specifically provides a cooling and dehumidification system.

Background technique

In the manufacturing process of some high-end products (such as lithium batteries), the air humidity in the manufacturing environment is very high, and the air humidity must be ensured to be below a certain standard. Therefore, a cooling and dehumidification system needs to be set up to dehumidify the factory building.

Currently commonly used cooling and dehumidification systems include rotary dehumidifiers, surface coolers and heaters. The rotor dehumidifier includes a rotor, a dehumidification channel and a regeneration channel. One part of the rotor is located in the dehumidification channel, and the other part is located in the regeneration channel. The rotor can continue to rotate. The surface cooler is installed on the air inlet side of the dehumidification channel to reduce the air temperature in the dehumidification channel. After the air temperature decreases, the water vapor in the air condenses and is absorbed by the runner located in the dehumidification channel, thereby reducing the temperature of the air after passing through the runner. The humidity of the air. As the runner rotates, the areas with higher humidity in the runner will rotate into the regeneration channel. The heater is arranged on the air inlet side of the regeneration channel to increase the air temperature in the regeneration channel. After the high-temperature air passes through the runner, the moisture absorbed by the runner can evaporate and be taken out of the runner, allowing the runner to be dried and regenerated. As the wheel rotates, it passes through the regenerated and dried part and enters the dehumidification channel, where dehumidification is performed again, and the cycle repeats.

The disadvantage of the above-mentioned technology is that both the surface cooler and the heater of the cooling and dehumidification system need to consume energy, and the energy utilization rate is low.

Contents of the invention

The present invention aims to solve the above technical problem, that is, to solve the problem of low energy utilization of the existing cooling and dehumidification system.

In a first aspect, the present invention provides a cooling and dehumidification system, including a wheel dehumidifier. The wheel dehumidifier includes a wheel, a dehumidification channel and a regeneration channel, and a part of the wheel is located in the dehumidification channel. Another part of the runner is located in the regeneration channel, and the runner is configured to rotate so that each part of the runner passes through the dehumidification channel and the regeneration channel in sequence, and the cooling and dehumidification system further includes a first heat pump Unit, the first heat pump unit includes: a first evaporator, arranged on the air inlet side of the dehumidification channel to absorb heat and reduce the temperature of the air flowing to the runner; a first condenser, configured to release heat, and the released heat is used to heat the air on the inlet side of the regeneration channel.

In the specific implementation of the above cooling and dehumidification system, the first condenser is disposed on the air inlet side of the regeneration channel.

In the specific implementation of the above cooling and dehumidification system, the cooling and dehumidification system also includes a second heat pump unit and a heat storage device; the heat storage device contains a heat storage medium, and the first condenser can heat the heat storage device. Heat medium; the second heat pump unit includes a second evaporator and a second condenser. The second evaporator can absorb the heat of the heat storage medium. The second condenser is arranged at the entrance of the regeneration channel. On the wind side, the second condenser can release heat to heat the air on the air inlet side of the regeneration channel.

In a specific implementation of the above cooling and dehumidification system, the heat storage medium is water.

In the specific implementation of the above cooling and dehumidification system, the cooling and dehumidification system also includes a third heat pump unit, the third heat pump unit includes a third evaporator and a third condenser, the third evaporator can absorb the The third condenser is arranged on the air inlet side of the regeneration channel to store the heat of the heat medium. The third condenser can release heat to heat the air on the air inlet side of the regeneration channel.

In a specific implementation of the above cooling and dehumidification system, the second condenser and the third condenser are arranged sequentially along the flow direction of the air.

In the specific implementation of the above cooling and dehumidification system, the cooling and dehumidification system also includes a fourth heat pump unit. The fourth heat pump unit includes: a fourth evaporator, which is arranged on the air outlet side of the regeneration channel to absorb all the air. The heat on the air outlet side of the regeneration channel; a fourth condenser, disposed on the air inlet side of the regeneration channel, releases heat to heat the air on the air inlet side of the regeneration channel.

In the specific implementation of the above cooling and dehumidification system, the cooling and dehumidification system includes a first rotary dehumidifier and a second rotary dehumidifier. The structures of the first rotary dehumidifier and the second rotary dehumidifier are The structure of the rotary dehumidifier is the same as that of the rotary dehumidifier. The dehumidification channel of the first rotary dehumidifier is connected with the dehumidification channel of the second rotary dehumidifier. All the dehumidification channels of the second rotary dehumidifier are connected to each other. The regeneration channel is connected with the regeneration channel of the first rotary dehumidifier.

In a specific implementation of the above cooling and dehumidification system, the dehumidification channel of the first rotary dehumidifier is connected in series with the dehumidification channel of the second rotary dehumidifier, and all the dehumidification channels of the first rotary dehumidifier are connected in series. The regeneration channel is connected in series or parallel with the regeneration channel of the second rotary dehumidifier.

In a specific implementation of the above cooling and dehumidification system, the cooling and dehumidification system further includes a surface cooler, and the surface cooler is arranged on the air inlet side of the dehumidification channel of the first rotary dehumidifier.

Compared with the prior art, the present invention has the following beneficial effects:

The cooling and dehumidification system provided by the invention includes a runner dehumidifier and a first heat pump unit. The runner dehumidifier includes a runner, a dehumidification channel and a regeneration channel. A part of the runner is located in the dehumidification channel, and the other part of the runner is located in the regeneration channel. , the runner is configured to rotate so that each part of the runner passes through the dehumidification channel and the regeneration channel in sequence; the first heat pump unit includes a first evaporator and a first condenser, and the first evaporator is arranged on the air inlet side of the dehumidification channel, To absorb heat and reduce the temperature of the air flowing to the runner; the first condenser is configured to release heat, and the released heat is used to heat the air on the inlet side of the regeneration channel, which can greatly improve energy utilization efficiency and reduce cooling Energy consumption of dehumidification systems.

Furthermore, the cooling and dehumidification system also includes a second heat pump unit and a heat storage device; the heat storage device contains a heat storage medium, and the first condenser can heat the heat storage medium; the second heat pump unit includes a second evaporator and a second condensation device. The second evaporator can absorb the heat of the heat storage medium, the second condenser is arranged on the air inlet side of the regeneration channel, and the second condenser can release heat to heat the air on the air inlet side of the regeneration channel. Even if the working conditions of the cooling and dehumidification system change and the heat released by the first condenser is reduced or even shut down, the heat stored in the heat storage device can be used to stably supply heat to the second condenser and the third condenser. Heating the air on the inlet side of the regeneration channel ensures that the runner can remove moisture before regeneration.

Description of the drawings

The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings, in which:

Figure 1 is a schematic structural diagram of a cooling and dehumidification system provided in Embodiment 1 of the present invention;

Figure 2 is a schematic structural diagram of another cooling and dehumidification system provided by Embodiment 1 of the present invention;

Figure 3 is a schematic structural diagram of a cooling and dehumidification system provided in Embodiment 2 of the present invention.

Explanation of reference symbols:

0. Rotary dehumidifier; 01. Rotary wheel; 02. Dehumidification channel; 03. Regeneration channel; 1. First runner dehumidifier; 2. Second runner dehumidifier; 3. First heat pump unit; 31. No. An evaporator; 32. The first condenser; 4. The second heat pump unit; 41. The second evaporator; 42. The second condenser; 5. The third heat pump unit; 51. The third evaporator; 52. The third Condenser; 6. The fourth heat pump unit; 61. The fourth evaporator; 62. The fourth condenser; 7. Heat storage equipment; 8. Surface cooler.

Detailed ways

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of the present invention.

It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer" and other terms indicating the direction or positional relationship are based on the figures. The directions or positional relationships shown are only for convenience of description and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance.

In addition, it should be noted that in the description of the present invention, unless otherwise clearly stated and limited, the terms "installation", "setting" and "connection" should be understood in a broad sense. For example, it can be a fixed connection or a fixed connection. It is a detachable connection or an integral connection; it can be directly connected, or indirectly connected through an intermediary, or it can be internal connection between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Embodiment 1

In order to solve the problem of low energy utilization of existing cooling and dehumidification systems, embodiments of the present invention provide a cooling and dehumidification system, which includes a rotary dehumidifier 0 and a heat pump unit.

As shown in Figure 1 or Figure 2, the runner dehumidifier 0 includes a runner 01, a dehumidification channel 02 and a regeneration channel 03. A part of the runner 01 is located in the dehumidification channel 02 and the other part is located in the regeneration channel 03. The runner 01 can Keep spinning. The temperature of the air flowing in the dehumidification channel 02 is relatively low, and the water vapor in the air is easily condensed and absorbed by the runner 01 located in the dehumidification channel 02 , thereby reducing the humidity of the air after passing through the runner 01 . The temperature of the air flowing in the regeneration channel 03 is relatively high. After the high-temperature air passes through the runner 01, the moisture absorbed by the runner 01 can evaporate and be taken out of the runner 01, so that the runner 01 is dried and regenerated. As the runner 01 rotates, the runner 01 enters the dehumidification channel 02 through the regenerated and dried part, and dehumidification is performed again, and the cycle repeats.

According to the flow direction of the air, the dehumidification channel 02 is divided into the air inlet side and the air outlet side with the runner 01 as the boundary. The air inlet side of the dehumidification channel 02 is generally equipped with refrigeration to reduce the temperature of the air so that the air can flow through the runner 01 Condensation everywhere. According to the flow direction of the air, the regeneration channel 03 is divided into the air inlet side and the air outlet side with the runner 01 as the boundary. The air inlet side of the regeneration channel 03 is generally equipped with heating to increase the temperature of the air to facilitate drying of the runner. 01, complete regeneration.

Part of the air flowing out from the outlet side of the dehumidification channel 02 enters the room, and the other excess air is discharged or enters the regeneration channel 03. The air inlet side of the regeneration channel 03 will be connected to the return air duct to supplement air into the regeneration channel 03 to prevent the air pressure on the air inlet side of the regeneration channel 03 from being too low.

The heat pump unit includes an evaporator, condenser, compressor and expansion valve. The compressor, condenser, expansion valve and evaporator are connected in sequence through pipes to form a circulation loop. The loop is filled with refrigerant. The compressor can compress the low-temperature and low-pressure gaseous refrigerant. It is a high-temperature and high-pressure gas refrigerant. The high-temperature and high-pressure gas refrigerant is liquefied into a medium-temperature and medium-pressure liquid refrigerant through the condenser, and releases heat to the outside world. After the liquid refrigerant enters the expansion valve and is throttled, it then absorbs heat through the evaporator, making the liquid refrigerant The refrigerant evaporates to form a gas, and then enters the compressor to be compressed and pressurized, thus reciprocating the cycle. During the operation of the heat pump unit, the refrigerant is used as the medium, and the heat absorbed by the evaporator is released at the condenser under the action of the compressor and expansion valve.

The heat pump unit includes a first heat pump unit 3 . The first heat pump unit 3 includes a first evaporator 31, a first condenser 32 and a matching compressor and expansion valve. The first evaporator 31 is arranged on the air inlet side of the dehumidification channel 02. The first heat pump unit 3 is in operation. , the first evaporator 31 can absorb the heat in the air flowing through the first evaporator 31, reduce the temperature of the air flowing to the runner 01, and improve the dehumidification effect of the runner 01. The heat absorbed by the first evaporator 31 is released at the first condenser 32 under the action of the matching compressor and expansion valve, and the heat released by the first condenser 32 is used to heat the inlet of the regeneration channel 03 air on the wind side to enhance the regeneration effect of runner 01. Generally speaking, the first heat pump unit 3 can use the heat absorbed in the dehumidification channel 02 to heat the air in the regeneration channel 03, and realize cooling and heating at the same time, which can greatly improve the energy utilization efficiency and reduce the cost of the cooling and dehumidification system. energy consumption.

If the power of the first heat pump unit 3 is difficult to reduce the air blown to the runner 01 to an appropriate temperature, it is necessary to set up a surface cooler 8 on the air inlet side of the dehumidification channel 02 to work together to reduce the air blown to the runner 01. Reduce to appropriate temperature. Lower-temperature frozen water flows through the surface cooler 8 to cool the temperature of the air flowing through the surface cooler 8 .

In some embodiments, as shown in FIG. 1 , the first condenser 32 is disposed on the air inlet side of the regeneration channel 03 , and the heat released by the first condenser 32 can be directly used to heat the air inlet side of the regeneration channel 03 . Air.

In other embodiments, as shown in FIG. 2 , the heat released by the first condenser 32 is used to indirectly heat the air on the inlet side of the regeneration channel 03 . Specifically, the cooling and dehumidification system also includes a heat storage device 7, which contains a heat storage medium. In this embodiment, the heat storage medium is water. Of course, other liquids with larger specific heat capacities can also be used. The first condenser 32 can heat the heat storage medium in the heat storage device 7 . The heat pump unit also includes a second heat pump unit 4 and a third heat pump unit 5. The second heat pump unit 4 includes a second evaporator 41, a second condenser 42 and a matching compressor and an expansion valve. The third heat pump unit 5 includes a third heat pump unit 4. Evaporator 51, third condenser 52 and matching compressor and expansion valve. Both the second evaporator 41 and the third evaporator 51 can absorb the heat in the heat storage medium. The second condenser 42 and the third condenser 52 are arranged on the air inlet side of the regeneration channel 03 to release heat to heat the regeneration channel 03 The air on the inlet side helps runner 01 complete regeneration. The heat storage device 7 can absorb and store heat, and can play a buffering role. Even if the working conditions of the cooling and dehumidification system change, the heat released by the first condenser 32 is reduced or even shut down. The heat stored in the heat storage device 7 can be used. The heat can also stably supply heat to the second condenser 42 and the third condenser 52 to heat the air on the inlet side of the regeneration channel 03, ensuring that the runner 01 can remove moisture and be regenerated.

Regarding the second heat pump unit 4 and the third heat pump unit 5, it should be noted that although in this embodiment, two sets of heat pump units (ie, the second heat pump unit 4 and the third heat pump unit 5) are used to absorb the energy in the heat storage device 7 of heat to heat the air on the inlet side of the regeneration channel 03, but this is not a specific limitation of the invention. Without departing from the principle of the invention, in other embodiments, those skilled in the art can set up a group or more The heat pump unit of the group is used to absorb the heat in the heat storage device 7 to heat the air on the inlet side of the regeneration channel 03 to help the runner 01 complete the regeneration.

In some other embodiments, the heat pump unit also includes a fourth heat pump unit 6. The fourth heat pump unit 6 includes a fourth evaporator 61, a fourth condenser 62 and a matching compressor and expansion valve. The fourth evaporator 61 is disposed on On the air outlet side of the regeneration channel 03, the fourth condenser 62 is disposed on the air inlet side of the regeneration channel 03. The fourth evaporator 61 can absorb the waste heat of the air discharged from the outlet side of the regeneration channel 03, and the absorbed heat is released at the fourth condenser 62 to heat the temperature of the air on the inlet side of the regeneration channel 03 to increase energy. utilization rate. Specifically, through the heat absorption effect of the fourth evaporator 61, the temperature of the air flowing through the fourth evaporator 61 can be reduced by about 50°C.

In addition, the fourth condenser 62, the second condenser 42, and the third condenser 52 are arranged in order along the flow direction of the air. Specifically, the air temperature at the inlet side of the regeneration channel 03 is about 45°C. After being heated by the fourth condenser 62, it can reach about 70°C. After being heated by the second condenser 42, it can reach about 95°C. The third condenser 52 can reach about 120°C after heating, and the hot air at about 120°C is blown to the runner 01, which can complete the regeneration of the runner 01. Using multi-stage heating, the air can be heated through multiple stages of equal temperature differences, which can improve heating efficiency and energy efficiency.

The first heat pump unit 3 and the fourth heat pump unit 6 are medium-temperature heat pump units, using R134a refrigerant as the refrigerant. The second heat pump unit 4 and the third heat pump unit 5 are high-temperature heat pump units, using R245fa refrigerant as the refrigerant. The medium-temperature heat pump unit and the high-temperature heat pump unit are divided according to the heating temperature of the condenser. Specific industry standards have been formed in this field and will not be described in detail in the present invention.

The compressors used by the first heat pump unit 3, the second heat pump unit 4, the third heat pump unit 5 and the fourth heat pump unit 6 are variable frequency compressors. By accurately controlling the operating frequency of the compressors of each heat pump unit, the fourth heat pump unit can be The condenser 62, the second condenser 42 and the third condenser 52 are distributed in a stepwise manner with equal temperature differences, so that the energy efficiency of the heat pump unit is the highest. In addition, if the dehumidification capacity of the runner 01 is small, the temperature of the air blown to the runner 01 can be less than 120°C. At this time, the second heat pump unit 4, the third heat pump unit 5 and the fourth heat pump unit 6 can be shut down. to reduce the temperature of the air blown to runner 01 and reduce energy consumption.

In summary, the working principle of the embodiment of the present invention is:

The first evaporator 31 can absorb the heat in the air flowing through the first evaporator 31, reduce the temperature of the air flowing to the runner 01, and cause the moisture in the air to condense at the runner 01, thereby improving the dehumidification effect of the runner 01. The dehumidified air enters the room. The heat absorbed by the first evaporator 31 is released at the first condenser 32 to heat the heat storage medium in the heat storage device 7 . Both the second evaporator 41 and the third evaporator 51 can absorb the heat in the heat storage medium and release the heat in the second condenser 42 and the third condenser 52 to heat the air on the air inlet side of the regeneration channel 03 . In addition, the fourth evaporator 61 can absorb the waste heat of the air discharged from the air outlet side of the regeneration channel 03 , and the absorbed heat is released at the fourth condenser 62 to heat the temperature of the air on the air inlet side of the regeneration channel 03 . The fourth condenser 62, the second condenser 42 and the third condenser 52 are distributed in a stepwise manner with isothermal differences, and heat the regeneration air blown to the runner 01 in stages. Among them, the main function of the first heat pump unit 3, the second heat pump unit 4, the third heat pump unit 5 and the fourth heat pump unit 6 is to transfer heat, and transfer the heat absorbed by the dehumidification channel 02 for cooling and the regeneration channel 03 out. The waste heat on the wind side is transferred to heat the air on the inlet side of regeneration channel 03, thereby improving the energy efficiency of the cooling and dehumidification system.

Compared with the traditional cooling and dehumidification system that uses frozen water refrigeration in the dehumidification channel 02 and electric heating or boiler heating in the regeneration channel 03, the present invention uses the first heat pump unit 3, the second heat pump unit 4 and The synergistic effect of the third heat pump unit 5 is to perform cooling in the dehumidification channel 02 and heating in the regeneration channel 03 at the same time. It can heat the regeneration air blowing to the runner 01 to 120°C without the need for additional heating equipment. The earth improves energy efficiency.

Embodiment 2

As shown in Figure 3, the embodiment of the present invention provides a cooling and dehumidification system, including a first rotary dehumidifier 1 and a second rotary dehumidifier 2, the first rotary dehumidifier 1 and the second rotary dehumidifier 2 The structure of is the same as that of the rotary dehumidifier 0 in Embodiment 1. The dehumidification channel 02 of the first rotary dehumidifier 1 is connected with the dehumidification channel 02 of the second rotary dehumidifier 2 , and the regeneration channel 03 of the second rotary dehumidifier 2 is connected with the regeneration channel 03 of the first rotary dehumidifier 1 .

Specifically, the dehumidification channel 02 of the first rotary dehumidifier 1 is connected in series with the dehumidification channel 02 of the second rotary dehumidifier 2, that is, the air outlet side of the dehumidification channel 02 of the first rotary dehumidifier 1 is connected with the second rotary dehumidifier. The air inlet side of the dehumidification channel 02 of the device 2 is connected. The regeneration channel 03 of the second rotary dehumidifier 2 is connected in series with the regeneration channel 03 of the first rotary dehumidifier 1 , that is, the air outlet side of the regeneration channel 03 of the second rotary dehumidifier 2 is connected with the first rotary dehumidifier 1 The air inlet side of the regeneration channel 03 is connected. In this way, the hot air on the outlet side of the regeneration channel 03 of the second rotary dehumidifier 2 can also be utilized by the first rotary dehumidifier 1, resulting in higher energy efficiency.

A surface cooler 8 is provided on the air inlet side of the dehumidification channel 02 of the first rotor dehumidifier 1 , and flowing frozen water flows through the surface cooler 8 to cool the air flowing through the surface cooler 8 .

The embodiment of the present invention also includes the first heat pump unit 3, the second heat pump unit 4, the third heat pump unit 5 and the fourth heat pump unit 6 as described in Embodiment 1. The first evaporator 31 is provided on the air inlet side of the dehumidification channel 02 of the second rotary dehumidifier 2 . The fourth evaporator 61 is provided on the air outlet side of the regeneration channel 03 of the first rotary dehumidifier 1 to absorb the waste heat on the air outlet side of the regeneration channel 03 . The fourth condenser 62 is provided on the air inlet side of the regeneration channel 03 of the first rotary dehumidifier 1 .

The second heat pump unit 4 and the third heat pump unit 5 are each provided with two groups, and the two second condensers 42 are respectively provided on the air inlet side of the regeneration channel 03 of the first rotary dehumidifier 1 and the second rotary dehumidifier 2 On the air inlet side of the regeneration channel 03 of the first rotor dehumidifier 1 and the second rotor dehumidifier 2, two third condensers 52 are respectively arranged on the air inlet side of the regeneration channel 03 of the first rotary dehumidifier 1 and the air inlet side of the regeneration channel 03 of the second rotary dehumidifier 2. , to ensure that the temperature of the regenerated air of the first rotary dehumidifier 1 and the second rotary dehumidifier 2 meets the requirements.

Regarding the fourth heat pump unit 6, it should be noted that although in the embodiment of the present invention, only one group of fourth heat pump unit 6 is provided, this is not a specific limitation of the present invention. Without departing from the principle of the present invention, in other cases In the embodiment, two groups of fourth heat pump units 6 may be provided. The fourth evaporators 61 of the two groups of fourth heat pump units 6 are both arranged on the air outlet side of the regeneration channel 03 of the first rotary dehumidifier 1 . The fourth condenser 62 of the heat pump unit 6 is respectively disposed on the air inlet side of the regeneration channel 03 of the first rotary dehumidifier 1 and the air inlet side of the regeneration channel 03 of the second rotary dehumidifier 2 .

Of course, without departing from the principle of the present invention, in other embodiments, those skilled in the art can also connect the dehumidification channel 02 of the first rotary dehumidifier 1 and the dehumidification channel 02 of the second rotary dehumidifier 2 in parallel. And/or, connect the regeneration channel 03 of the second rotary dehumidifier 2 and the regeneration channel 03 of the first rotary dehumidifier 1 in parallel. After the dehumidification channel 02 of the first runner dehumidifier 1 is connected in parallel with the dehumidification channel 02 of the second runner dehumidifier 2, the first heat pump unit 3 and the surface cooler can be installed before the parallel section, and at the same time, the first runner dehumidifier can be dehumidified. The air in the dehumidification channel 02 of the dehumidifier 1 and the dehumidification channel 02 of the second rotary dehumidifier 2 is cooled. After the regeneration channel 03 of the second rotary dehumidifier 2 is connected in parallel with the regeneration channel 03 of the first rotary dehumidifier 1, the second heat pump unit 4, the third heat pump unit 5 and the fourth heat pump unit 6 can be arranged before the parallel section, The air entering the regeneration channel 03 of the second rotary dehumidifier 2 and the regeneration channel 03 of the first rotary dehumidifier 1 is heated at the same time.

So far, the technical solution of the present invention has been described with reference to the preferred embodiments shown in the drawings. However, those skilled in the art can easily understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to relevant technical features, and technical solutions after these modifications or substitutions will fall within the protection scope of the present invention.

Claims (10)

1. A cooling and dehumidifying system comprising a rotating wheel dehumidifier (0), the rotating wheel dehumidifier (0) comprising a rotating wheel (01), a dehumidifying channel (02) and a regenerating channel (03), a part of the rotating wheel (01) being located in the dehumidifying channel (02), another part of the rotating wheel (01) being located in the regenerating channel (03), the rotating wheel (01) being configured to rotate such that the respective parts of the rotating wheel (01) pass through the dehumidifying channel (02) and the regenerating channel (03) in sequence, characterized in that the cooling and dehumidifying system further comprises a first heat pump unit (3), the first heat pump unit (3) comprising:

a first evaporator (31) arranged on the air inlet side of the dehumidification channel (02) for absorbing heat and reducing the temperature of air flowing to the rotating wheel (01);

a first condenser (32) configured to release heat, and the released heat is used to heat air of an air intake side of the regeneration passage (03).

2. The cooling and dehumidifying system according to claim 1, wherein the first condenser (32) is provided on an air intake side of the regeneration channel (03).

3. Cooling and dehumidification system according to claim 1, characterized in that it further comprises a second heat pump unit (4) and a heat storage device (7);

the heat storage device (7) accommodates a heat storage medium, and the first condenser (32) can heat the heat storage medium;

the second heat pump unit (4) comprises a second evaporator (41) and a second condenser (42), the second evaporator (41) can absorb heat of the heat storage medium, the second condenser (42) is arranged on the air inlet side of the regeneration channel (03), and the second condenser (42) can release heat to heat air on the air inlet side of the regeneration channel (03).

4. A cooling and dehumidifying system as claimed in claim 3 wherein the heat storage medium is water.

5. A cooling and dehumidifying system according to claim 3, further comprising a third heat pump unit (5), the third heat pump unit (5) comprising a third evaporator (51) and a third condenser (52), the third evaporator (51) being capable of absorbing heat of the heat storage medium, the third condenser (52) being arranged on an air intake side of the regeneration channel (03), the third condenser (52) being capable of releasing heat to heat air on the air intake side of the regeneration channel (03).

6. The cooling and dehumidifying system according to claim 5, wherein the second condenser (42) and the third condenser (52) are disposed in order along the flow direction of the air.

7. The cooling and dehumidifying system as claimed in any one of claims 1 to 6, wherein the cooling and dehumidifying system further comprises a fourth heat pump unit (6), the fourth heat pump unit (6) comprising:

a fourth evaporator (61) disposed on the air outlet side of the regeneration passage (03) to absorb heat of the air outlet side of the regeneration passage (03);

and a fourth condenser (62) which is arranged on the air inlet side of the regeneration channel (03) and releases heat to heat the air on the air inlet side of the regeneration channel (03).

8. Cooling and dehumidifying system according to any one of claims 1 to 6, characterized in that it comprises a first rotary dehumidifier (1) and a second rotary dehumidifier (2), the structure of the first rotary dehumidifier (1) and the second rotary dehumidifier (2) being identical to the structure of the rotary dehumidifier (0), the dehumidifying channel (02) of the first rotary dehumidifier (1) being in communication with the dehumidifying channel (02) of the second rotary dehumidifier (2), the regenerating channel (03) of the second rotary dehumidifier (2) being in communication with the regenerating channel (03) of the first rotary dehumidifier (1).

9. The cooling and dehumidification system according to claim 8, wherein the dehumidification channel (02) of the first rotary dehumidifier (1) is connected in series with the dehumidification channel (02) of the second rotary dehumidifier (2), and the regeneration channel (03) of the first rotary dehumidifier (1) is connected in series or in parallel with the regeneration channel (03) of the second rotary dehumidifier (2).

10. The cooling and dehumidifying system according to claim 8, further comprising a surface cooler (8), the surface cooler (8) being arranged on an air intake side of the dehumidifying channel (02) of the first rotary dehumidifier (1).