Single runner two stage dehumidify air-conditioner driven by solar

[0029] Example 1

[0030] As shown in Figure 1, it is the structure of a single-wheel two-stage dehumidification air conditioner driven by solar hot water.

[0031] This embodiment includes: a second-stage regeneration fan 1, a dehumidification wheel 2, a wheel drive motor 3, a wheel drive belt 4, a second-stage regeneration heater 5, a second-stage treatment heat exchanger 6, and a second-stage regeneration Air inlet duct 7, evaporative cooler 8, treatment fan 9, first-stage regeneration fan 10, treatment air inlet duct 11, first-stage regeneration heater 12, first-stage treatment heat exchanger 13, first-stage regeneration Air inlet duct 14, regeneration side evaporative cooler 15, regeneration air inlet manifold 16, hot water pump 17, hot water tank 18, hot water heat exchanger 19, water tank bypass pipe 20, auxiliary heater 21, solar collector twenty two.

[0032]As shown in FIG. 2 , a schematic diagram of the structure of the partitions of the dehumidification rotor 2 is a first-stage treatment zone 23 , a first-stage regeneration zone 24 , a second-stage treatment zone 25 , and a second-stage regeneration zone 26 . The treatment zone is connected with the regeneration zone, and the regeneration zone is spaced between the two-stage treatment zones. The first-stage treatment zone 23, the second-stage treatment zone 25, the first-stage regeneration zone 24, and the second-stage regeneration zone 26 account for 3/8, 3/8, and 1/8 of the area of ​​the section of the dehumidifying wheel 2, respectively. , 1/8, and other ratios, such as 1/4, 1/4 and 1/4, 1/4.

[0033] The structure of this embodiment can be divided into a rotary dehumidification device and a solar device. Its connection method is:

[0034] The wheel drive motor 3 is connected with the dehumidification wheel 2 through the wheel drive belt 4 (or gear), and drives the dehumidification wheel 2 to rotate. The runner driving motor 3, the runner driving belt 4 (or gear), and the dehumidifying runner 2 constitute the runner driving component.

[0035] The air flow of the rotary dehumidifier is divided into two paths, namely the treatment air path and the regeneration air path. The connection method of the treatment air path is as follows: the inlet air duct 11 of the treatment air is connected to the air inlet side of the first-stage treatment area 23 of the dehumidification rotor 2, and the air outlet side of the first-stage treatment area 23 is exchanged with the first-stage treatment area through the air duct. Heater 14 is connected to the processing side inlet. The outlet of the treatment side of the first-stage treatment heat exchanger 13 is connected to the air inlet side of the second-stage treatment area 25 of the dehumidification rotor 2 through an air duct. The air outlet side of the second-stage treatment area 25 is connected to the treatment-side inlet of the second-stage treatment heat exchanger 6 through an air duct, and the treatment-side outlet of the second-stage treatment heat exchanger 6 is connected to the evaporative cooler 8 through an air duct. The evaporative cooler 8 is then connected to the processing fan 9 .

[0036] The connection mode of the regeneration air path is as follows: the regeneration air inlet manifold 16 is connected to the inlet of the regeneration side evaporative cooler 15, and then the regeneration side evaporative cooler 15 is connected to the first-stage processing heat exchanger 13 and the second-stage processing heat exchanger 6 respectively. (Regeneration air is used to cool the process air and is preheated). One side of the first-stage regeneration heater 12 is connected to the outlet of the regeneration air side of the first-stage treatment heat exchanger 13, and the other side is connected to the first-stage regeneration zone 24 of the dehumidification rotor 2 through an air duct. The first-stage regeneration zone 24 The air outlet side is connected to the first-stage regeneration fan 10 . One side of the second-stage regeneration heater 5 is connected to the second-stage treatment heat exchanger 6, and the other side is connected to the second-stage regeneration zone 26 of the dehumidification rotor 2. The output of the second-stage regeneration zone 26 of the dehumidification rotor 2 The wind side is connected to the second-stage regeneration fan 1 (it can also be connected to the first-stage regeneration fan 10 through an air duct, that is, the regeneration side is driven by only one air duct). The two-stage regeneration side components are connected in parallel.

[0037] The connection method of the solar device is as follows: the solar collector 22 is connected in parallel with the auxiliary water heater 21, and is connected with the heat exchanger 19 in the water tank 18, and the water tank is used for heating domestic hot water. The bypass water pipe 20 is connected in parallel with the water tank, and is connected with the solar collector 22 and the auxiliary water heater 21 . The heat exchanger 19 and the bypass water pipe 20 are connected to the hot water pump 17 through water pipes, and the hot water pump 17 is connected to the water side inlets of the first-stage regeneration heater 12 and the second-stage regeneration heater 5 through water pipes. The first-stage regeneration heater 12 and the water-side outlet of the second-stage regeneration heater 5 are connected to the solar heat collector 22 to form a closed cycle. In this case, the water sides of the two regeneration heaters are in parallel. The two-stage regeneration heater can also be connected in series, that is, the hot water pump 17 is connected to the first-stage regeneration heater 12 through a water pipe, and the first-stage regeneration heater 12 is connected to the second-stage regeneration heater 5 . The second-stage regenerative heater 5 is connected to the solar collector 22 to form a closed cycle. Alternatively, the hot water pump 17 is connected to the second-stage regeneration heater 5 through a water pipe, and the second-stage regeneration heater 5 is further connected to the first-stage regeneration heater 12 . The first-stage regenerative heater 12 is connected to the solar collector 22 to form a closed cycle of hot water.

[0038] The cooling and dehumidification method of the two-stage rotary dehumidification air conditioner realized by the above equipment is: outdoor air or indoor return air, or indoor and outdoor mixed air (referred to as treatment air) enters the first stage of the dehumidification wheel 2 through the treatment air inlet air duct 11. In the treatment zone 23, the moisture in the air is adsorbed by the dehumidification rotor, and the process is an isenthalpic process. The air temperature has risen, and if the dehumidification is continued, the dehumidification effect will become worse. The process air thus then enters the first stage process heat exchanger 13, transferring heat to a cooling medium, such as water or air, on the other side of the heat exchanger. Then, the cooled process air enters the second-stage treatment zone 25 of the dehumidification rotor 2 again, and the moisture in the air is further adsorbed by the second-stage treatment zone 25 of the dehumidification rotor 2 to become air with lower moisture content. Next, it enters the second-stage processing heat exchanger 6 again, and transfers heat to the cooling medium on the other side of the heat exchanger. Since the selected cooling medium is cooling tower cold water or outdoor air, or indoor return air, the temperature drop of the treated air after passing through the second-stage treatment heat exchanger 7 has not yet reached the comfortable air supply requirement. Since the moisture content of the treated air at this time is low, that is, the enthalpy drop has reached the air supply requirement, the treated air flows through the evaporative cooler 8 to reduce the temperature and humidity and increase the moisture content, thereby achieving a comfortable supply air temperature and humidity working condition . The flow of the treatment air is driven by the treatment fan 9 located at the outlet of the evaporative cooler 8 (the treatment fan 9 may also be arranged between other components through which the treatment air flows) and sent to the air-conditioned room.

[0039] The wheel drive motor 3 drives the dehumidification wheel 2 to rotate through a belt (or gear). The first treatment zone 23 and the second stage treatment zone 25 of the dehumidifying wheel absorb moisture and then rotate to the first and second stage regeneration zones 24 and 26 under the drive of the motor to be heated by regeneration air to remove the adsorbed moisture. The regeneration air can be outdoor air or indoor return air, and enters the first and second regeneration heaters 12 and 5 from the first and second stage regeneration air inlet pipes 14 and 7 respectively, and is heated to the required regeneration temperature and then enters the dehumidification. Wheel regeneration area. The flow of the two-stage regeneration air is driven by the regeneration fans 10 and 1 arranged at the outlet of the regeneration area (the regeneration fan can also be arranged at other positions where the regeneration air flows), and is discharged to the outside.

[0040] The two-stage rotary dehumidification air conditioner in this embodiment only uses one rotary wheel and a set of rotary wheel drive systems, and has a compact structure, mainly relying on solar hot water as a heat source. This embodiment can be applied to summer air conditioners in commercial buildings, civil buildings and other occasions, and is suitable for medium and small systems.

[0041] Example 2

[0042] As shown in Figure 3, it is a single-rotor two-stage dehumidification air conditioner driven by solar hot air, which is used for air-conditioning cooling in summer.

[0043] As shown in FIG. 3 , this embodiment includes: a second-stage regeneration fan 1, a dehumidifying wheel 2, a wheel drive motor 3, a wheel drive belt 4, a second-stage treatment heat exchanger 6, and a second-stage cooling air inlet air Pipe 7, evaporative cooler 8, treatment fan 9, first-stage regeneration fan 10, treatment air inlet duct 11, first-stage treatment heat exchanger 13, first-stage cooling air inlet duct 14, cooling air evaporative cooler 15. Cooling air inlet manifold 16, second-stage treatment air inlet air valve 27 in winter, second-stage treatment air inlet air duct 28 in winter, treatment air intermediate valve 29, second-stage regeneration air duct 30, treatment air bypass valve 31 , The treatment air bypass ventilation pipe 32, the first-stage regeneration air pipe 33, the auxiliary air heater 34, the hot air fan 35, the solar air collector 36, and the collector inlet air pipe 37. The structure of the dehumidification wheel partition is shown in Figure 2.

[0044] The difference between this embodiment and Embodiment 1 is that the solar air heat collector is adopted, and the first-stage regenerative heater and the second-stage regenerative heater are omitted. The regeneration side evaporative cooler 15 in Embodiment 1 is renamed the cooling air evaporative cooler 15 in this embodiment.

[0045] The structure of this embodiment can also be divided into a rotary dehumidification device and a solar device, and the connection methods are as follows:

[0046] The wheel drive motor 3 is connected with the dehumidification wheel 2 through the wheel drive belt 4 (or gear), and drives the dehumidification wheel 2 to rotate. The runner driving motor 3, the runner driving belt 4 (or gear), and the dehumidifying runner 2 constitute the runner driving component.

[0047] The air flow of the rotary dehumidifier is divided into two paths, namely the processing air path and the cooling air path. The connection method of the treatment air path is as follows: the inlet air duct 11 of the treatment air is connected to the air inlet side of the first-stage treatment area 23 of the dehumidification rotor 2, and the air outlet side of the first-stage treatment area 23 is connected to the treatment air intermediate valve 29. The air intermediate valve 29 is connected to the treatment side inlet of the first-stage treatment heat exchanger 14 through an air pipe. The outlet of the treatment side of the first-stage treatment heat exchanger 13 is connected to the air inlet side of the second-stage treatment area 25 of the dehumidification rotor 2 through an air duct. The air outlet side of the second-stage treatment area 25 is connected to the treatment-side inlet of the second-stage treatment heat exchanger 6 through an air duct, and the treatment-side outlet of the second-stage treatment heat exchanger 6 is connected to the evaporative cooler 8 through an air duct. The evaporative cooler 8 is then connected to the processing fan 9 . The air outlet side of the first-stage treatment area 23 is also connected to the treatment air bypass valve 31 and the treatment air bypass ventilation pipe 32 . The processing air bypass ventilation pipe 32 is then connected to the processing fan 9 . The second-stage treatment air inlet air duct 28 in winter is connected to the second-stage treatment air inlet air valve 27 in winter, and the air valve 27 is connected to the air inlet side of the second-stage treatment area 25 of the dehumidifying rotor 2 through the air duct.

[0048] The connection mode of the cooling air path is as follows: the cooling air inlet manifold 16 is connected to the cooling air evaporative cooler 15, and then the cooling air evaporative cooler 15 is respectively connected to the first-stage processing heat exchanger 13 and the second-stage processing heat exchanger 6 ( for cooling process air). The outlet of the cooling air side of the first-stage processing heat exchanger 13 is connected to the second-stage regeneration fan 1 to lead the cooling air to the outdoor environment. The outlet of the cooling air side of the second-stage processing heat exchanger 6 is connected to the first-stage regeneration fan 10 to lead the cooling air to the outdoor environment.

[0049] The connection method of the solar collector device is as follows: the inlet air duct 37 of the collector is connected to the solar air collector 36, and the solar air collector 36 is connected to the hot air blower 35 (the hot air blower 35 can also be installed in other positions of the regeneration air path). ), the outlet of the hot air blower 35 is connected to the auxiliary air heater 34 . The outlet of the auxiliary air heater 34 is connected to the first-stage regeneration zone 24 through the first-stage regeneration air duct 33 , and the outlet of the auxiliary air heater 34 is also connected to the second-stage regeneration zone 26 through the second-stage regeneration air duct 33 . The first-stage regeneration zone 24 is connected to the first-stage regeneration fan 10 , and the second-stage regeneration zone 26 is connected to the second-stage regeneration fan 1 .

[0050] The cooling and dehumidification method of the two-stage rotary dehumidification air conditioner realized by the above structure is as follows: in winter, the second-stage treatment air inlet air valve 27 is closed, the treatment air bypass valve 31 is closed, and the treatment air intermediate valve 29 is opened. Outdoor air or indoor return air, or indoor and outdoor mixed air (referred to as treatment air) enters the first-stage treatment area 23 of the dehumidification rotor 2 through the treatment air inlet duct 11, and the moisture in the air is adsorbed by the dehumidification rotor. The process is as follows: An isenthalpic process. The air temperature has risen, and if the dehumidification is continued, the dehumidification effect will become worse. Therefore, the process air then enters the first-stage process heat exchanger 13 through the process air intermediate valve 29, and transfers heat to the cooling medium on the other side of the heat exchanger. In this embodiment, the cooling medium is air (or water). Then, the cooled process air enters the second-stage treatment zone 25 of the dehumidification rotor 2 again, and the moisture in the air is further adsorbed by the second-stage treatment zone 25 of the dehumidification rotor 2 to become air with lower moisture content. Next, it enters the second-stage processing heat exchanger 6 again, and transfers heat to the cooling medium on the other side of the heat exchanger. Since the selected cooling medium is cooling tower cold water or outdoor air, or indoor return air, the temperature drop of the treated air after passing through the second-stage treatment heat exchanger 7 has not yet reached the comfortable air supply requirement. Since the moisture content of the treated air at this time is low, that is, the enthalpy drop has reached the air supply requirement, the treated air flows through the evaporative cooler 8 to reduce the temperature and humidity and increase the moisture content, thereby achieving a comfortable supply air temperature and humidity working condition . The flow of the treatment air is driven by the treatment fan 9 located at the outlet of the evaporative cooler 8 (the treatment fan 9 may also be arranged between other components through which the treatment air flows) and sent to the air-conditioned room.

[0051] The wheel drive motor 3 drives the dehumidification wheel 2 to rotate through a belt (or gear). The first treatment zone 23 and the second stage treatment zone 25 of the dehumidifying wheel absorb moisture and then rotate to the first and second stage regeneration zones 24 and 26 under the drive of the motor to be heated by regeneration air to remove the adsorbed moisture. The ambient air is driven by the hot air blower 35 and enters the solar air heat collector 36 through the collector inlet air duct 37 . This air is heated in the solar air collector 36 to become regeneration air. The regeneration air enters the first and second regeneration zones 23 and 25 of the dehumidifying rotor through the first and second regeneration air inlet pipes 33 and 30 respectively. The flow of the two-stage regeneration air for the regeneration runner (taking away the moisture in the runner) is driven by the regeneration fans 10 and 1 arranged at the outlet of the regeneration area, and is discharged to the outside.

[0052]The two-stage rotary dehumidification air conditioning method uses only one rotary wheel and a set of rotary wheel drive systems, and has a compact structure, mainly relying on the solar air heat collector as a heat source. This equipment can be used in summer air conditioners in commercial buildings, civil buildings and other occasions.

[0053] Example 3

[0054] This embodiment is used for heating in winter, and the structure is shown in FIG. 3 . The difference from Embodiment 2 is that the structure of this embodiment does not include: the first-stage processing heat exchanger 13, the first-stage cooling air inlet air duct 14, the cooling air evaporative cooler 15, the cooling air inlet manifold 16, the second-stage cooling air inlet manifold Process heat exchanger 6, evaporative cooler 8, none of them work in this embodiment.

[0055] The winter heating mode of the two-stage rotary dehumidification air conditioner realized by the above structural characteristics is:

[0056] In winter, the second-stage treatment air inlet damper 27 is opened, the treatment air bypass valve 31 is opened, and the treatment air intermediate valve 29 is closed. Outdoor air or indoor return air, or indoor and outdoor mixed air (regenerating air for short), ambient air is driven by the hot air fan 35 and enters the solar air heat collector 36 through the collector inlet air duct 37 . This air is heated in the solar air collector 36 to become regeneration air. The regeneration air enters the first and second regeneration zones 23 and 25 of the dehumidifying rotor through the first and second regeneration air inlet pipes 33 and 30 respectively. It is used to regenerate the runner, obtain the moisture in the runner, and humidify the air. The flow of the two-stage regeneration air is driven by the regeneration fans 10 and 1 arranged at the outlet of the regeneration area, and sent to the room for heating.

[0057] The outdoor ambient air (referred to as processing air) enters the first stage 23 treatment area of ​​the dehumidification rotor 2 through the processing air inlet duct 1, and the moisture in the air is adsorbed by the dehumidification rotor. Afterwards, through the treated air bypass valve 31 and the first-stage bypass air pipe 32, the treated air is discharged to the outside by the treated fan 9. The other outdoor ambient air enters the second-stage treatment area 25 of the first-stage dehumidification rotor 2 through the second-stage treatment air inlet air duct 28 in winter and the second-stage treatment air inlet air valve 27 in winter, and the moisture in the air is removed by the dehumidification wheel. adsorption. Then it is discharged to the outside through the treatment fan 9 . The air flow process and state changes on the processing side of the second stage are the same as those of the first stage.

[0058] The two-stage rotary dehumidification air conditioner can be used for humidification and heating in winter in public buildings, commercial buildings, factories, etc. such as libraries. Embodiment 1 can also add the second-stage treatment air inlet air valve 27 in winter, the second-stage treatment air inlet air duct 28 in winter, the treatment air intermediate valve 29, the first-stage air management bypass valve 31 and the treatment air bypass ventilation pipe. 32. A humidification and heating method in winter similar to this example is realized.

[0059] It can be seen from the above embodiments that the present invention can provide a heat-driven refrigeration method different from adsorption and absorption refrigeration, and realize miniaturization and cost reduction of heat-driven air-conditioning equipment. Moreover, when operating in winter, solar energy can be used to provide heating, ventilation and humidification functions, so that the system can be used all year round and further reduce the initial investment of air conditioning and heating equipment. The invention has the characteristics of simple structure, easy control of system operation, etc., can effectively utilize low-grade heat sources such as solar energy, and has no environmental pollution, and is a green and energy-saving refrigeration unit.