Humidifier with large humidification amount

Abstract

The utility model relates to a humidifier with large humidification amount, which belongs to the technical field of humidifiers and comprises an outer shell, a first water tank, a wet curtain, a fan, a third water tank, a fourth water tank and a water replenishing component, the first water tank, the wet curtain, the fan, the third water tank, the fourth water tank and the water replenishing component are arranged in the outer shell, an air inlet and an air outlet are arranged on the outer shell, and an air passage is arranged between the air inlet and the air outlet. Water stored in the first water tank is conveyed to the third water tank through the water supplementing assembly. A water outlet of the third water tank is communicated with a water inlet of the fourth water tank through a connecting pipe, the position of the water outlet is higher than that of the water inlet, a heater is arranged on the connecting pipe and heats water stored in the connecting pipe to enable the water to become boiled water, and the boiled water in the fourth water tank flows to a wet curtain through a water outlet to moisten the wet curtain. Hot steam of boiling water enters the air passing channel from the opening and then is discharged out of the outer shell from the air outlet, and wet steam in the wet curtain also enters the air passing channel along with air flow and is discharged out of the outer shell from the air outlet. According to the utility model, the humidification amount is increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of humidifiers, and particularly relates to a humidifier with a large humidification capacity. Background Art

[0002] Humidifiers are generally divided into two humidification methods: fog humidification and non-fog humidification. A fog humidifier is generally provided with a water tank, a water pump, an atomization element and a fan, and its working principle is as follows: the water pump conveys the water in the water tank to the atomization element, and after the water is atomized by the atomization element, it is discharged from the air outlet through the fan. A non-fog humidifier is generally provided with a water tank, a water pump, a wet curtain and a fan, and its working principle is as follows: the water pump pumps out the water in the water tank to wet the wet curtain, the fan drives the air flow to flow through the wet curtain to become a humid air flow, and the humid air flow is then discharged from the air outlet. The humidification capacity of humidifiers using both humidification methods is limited. If it is necessary to increase the humidification capacity, it is necessary to increase the overall structure of the humidifier and increase the power. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a humidifier with a large humidification capacity, which combines fog humidification and non-fog humidification, and increases the humidification capacity of the humidifier under a limited external shape volume.

[0004] The utility model is realized as follows: a humidifier with a large humidification capacity is provided, which includes an outer shell body, a first water tank, a wet curtain and a fan arranged in the outer shell body. An air inlet and an air outlet are respectively arranged on the outer shell body, and an air passage is arranged between the air inlet and the air outlet. The fan and the wet curtain are respectively arranged in the air passage. A third water tank and a fourth water tank are respectively arranged above the wet curtain. The water stored in the first water tank is conveyed to the third water tank through a water replenishing component; the water outlet of the third water tank and the water inlet of the fourth water tank are communicated with each other through a connecting pipe, and the position of the water outlet is higher than the position of the water inlet. A heater is arranged on the connecting pipe, and the heater heats the water stored in the connecting pipe to make it boiling water. The boiling water continuously flows into the fourth water tank. A water outlet is arranged at the bottom of the fourth water tank, and the water outlet is located above the wet curtain. The boiling water in the fourth water tank flows to the wet curtain through the water outlet to wet the wet curtain. An open mouth is arranged at the top of the fourth water tank, and the open mouth is communicated with the air passage. The hot steam of the boiling water enters the air passage from the open mouth and is then discharged from the air outlet of the outer shell body. The moist water vapor in the wet curtain also enters the air passage along with the air flow and is discharged from the air outlet of the outer shell body.

[0005] Further, a second water tank and a second water replenishing pipe are also arranged inside the outer shell. The second water tank is located between the wet curtain and the first water tank. The lower part of the wet curtain is located inside the second water tank. The second water tank collects the surplus hot water after wetting the wet curtain. A second water pump, a low water level sensor and a high water level sensor are respectively arranged inside the second water tank. One end of the second water replenishing pipe is communicated with the second water pump, and the other end thereof is communicated with the fourth water tank. The second water pump replenishes water to the fourth water tank through the second water replenishing pipe. When the low water level sensor is triggered, the second water pump is controlled to start and replenish water to the fourth water tank through the second water replenishing pipe. When the high water level sensor is triggered, the water replenishing assembly is controlled to stop replenishing water to the third water tank.

[0006] Further, a normally open solenoid valve and a water return pipe are also arranged on the second water tank. The normally open solenoid valve is arranged on the water return pipe, and the outlet of the water return pipe is communicated with the first water tank. After the normally open solenoid valve is powered off, the water return pipe is conducted, and the hot water stored in the second water tank flows back to the first water tank through the water return pipe.

[0007] Further, a central housing is arranged inside the outer shell. An upper water tank body, a middle housing and a lower water tank body are respectively arranged on the central housing. The upper water tank body and the lower water tank body are respectively positioned on the outer shell. The upper water tank body and the middle housing are connected by a plurality of spokes. The gap between adjacent spokes is part of the air passing air duct. A sealing ring is arranged at the connection part between the middle housing and the lower water tank body. The wet curtain is arranged between the upper water tank body and the lower water tank body. The middle housing is located inside the cavity in the middle of the wet curtain. The third water tank and the fourth water tank are respectively arranged on the upper water tank body, and the second water tank is arranged on the lower water tank body. A plurality of water passing holes are arranged on the middle housing and communicated with the second water tank. The connecting pipe, the heater, the second water pump, the second water replenishing pipe, the low water level sensor and the high water level sensor are respectively located inside the middle housing.

[0008] Further, the water replenishing assembly includes a first water pump and a first water replenishing pipe. The first water pump is arranged inside the first water tank. One end of the first water replenishing pipe is communicated with the first water pump, and the other end thereof is communicated with the third water tank. The first water pump replenishes water to the third water tank through the first water replenishing pipe.

[0009] Further, a low water level probe and a high water level probe are respectively arranged on the third water tank. When the water stored in the third water tank is lower than the position where the low water level probe is located, the low water level probe is triggered, and the first water pump is controlled to start and replenish water to the third water tank. When the water stored in the third water tank is higher than the position where the high water level probe is located, the high water level probe is triggered, and the first water pump is controlled to stop replenishing water to the third water tank.

[0010] Further, a water distribution tray is arranged between the fourth water tank and the wet curtain. A water distribution cavity is arranged on the water distribution tray. The water distribution cavity is located directly below the water outlet. The water distribution cavity collects the boiling water falling from the water outlet. A plurality of water dropping holes are arranged on the bottom surface of the water distribution cavity. The wet curtain is located directly below the water dropping holes. The boiling water in the water distribution cavity drips onto the wet curtain through the water dropping holes to moisten the wet curtain.

[0011] Further, an annular step is arranged around the top of each of the water dropping holes.

[0012] Further, a water collecting tray is arranged between the wet curtain and the second water tank. A plurality of water outlet holes are arranged on the water collecting tray. The excess hot water in the wet curtain drips into the second water tank through the water outlet holes.

[0013] Compared with the prior art, a humidifier with a large humidification amount of the present utility model includes a housing and a first water tank, a wet curtain, a fan, a third water tank and a fourth water tank arranged in the housing. An air inlet and an air outlet are respectively arranged on the housing. An air passage is arranged between the air inlet and the air outlet. The fan and the wet curtain are respectively arranged in the air passage. The third water tank and the fourth water tank are arranged above the wet curtain. The water stored in the first water tank is conveyed to the third water tank through a water replenishing component. The water outlet of the third water tank and the water inlet of the fourth water tank are communicated with each other through a connecting pipe. The position of the water outlet is higher than the position of the water inlet. A heater is arranged on the connecting pipe. The heater heats the water stored in the connecting pipe to make it boiling water. A water outlet is arranged at the bottom of the fourth water tank. The water outlet is located above the wet curtain. The boiling water in the fourth water tank flows to the wet curtain through the water outlet to moisten the wet curtain. An open mouth is arranged at the top of the fourth water tank. The open mouth is communicated with the air passage. In the humidifier with a large humidification amount of the present utility model, under the action of the heater, the water stored in the third water tank is automatically replenished into the connecting pipe and heated to become boiling water. The boiling water continuously enters the fourth water tank. The boiling water in the fourth water tank flows into the wet curtain from the water outlet to moisten the wet curtain. The hot steam of the boiling water enters the air passage from the open mouth and is discharged from the air outlet of the housing. The moist water vapor in the wet curtain also enters the air passage with the air flow and is discharged from the air outlet of the housing. By using boiling water, hot steam (i.e., heat humidification) and moist water vapor (i.e., cold humidification) are generated. The hot steam and the moist water vapor are simultaneously discharged from the air outlet through the fan. Under the condition of a limited external shape volume, the humidification amount is increased. Description of the Drawings

[0014] Figure 1 is a perspective schematic diagram of a preferred embodiment of the humidifier with a large humidification amount of the present utility model;

[0015] Figure 2 is Figure 1 the sectional view taken along M-M in

[0016] Figure 3 is Figure 1 the sectional view taken along N-N in

[0017] Figure 4 is Figure 2 A three-dimensional schematic diagram of the central housing;

[0018] Figure 5 is Figure 4 The top view of;

[0019] Figure 6 is Figure 4 A three-dimensional schematic diagram from another angle;

[0020] Figure 7 is Figure 2 A three-dimensional schematic diagram of the water distribution tray in;

[0021] Figure 8 is Figure 2 A three-dimensional schematic diagram of the water collection tray in.

[0022] Among them, the markings in each drawing are explained as follows:

[0023] Outer housing 1, air inlet 101, air outlet 102; first water tank 2; second water tank 3; third water tank 4, water outlet 41; fourth water tank 5, water inlet 51, water outlet 52, open mouth 53; first water pump 6; second water pump 7; first water supply pipe 8; second water supply pipe 9; wet curtain 10; fan 11; air passage 12; connecting pipe 13; heater 14; high water level sensor 15; normally open solenoid valve 16; return pipe 17; central housing 18; upper water tank body 19; middle housing 20; lower water tank body 21; spoke 22; sealing ring 23; water passage hole 24; low water level probe 25; high water level probe 26; water distribution tray 27, water distribution cavity 271, water dropping hole 272, annular step 273; water collection tray 28, water outlet hole 281, water collection cavity 282. Detailed implementation manners

[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0025] Please refer to simultaneously Figures 1 to 6 As shown, a preferred embodiment of the humidifier with a large humidification amount of the present utility model includes an outer housing 1 and a first water tank 2, a second water tank 3, a third water tank 4, a fourth water tank 5, a second water pump 7, a second water supply pipe 9, a wet curtain 10, a fan 11 and a water replenishing component arranged in the outer housing 1. The water stored in the first water tank 2 is delivered to the third water tank 4 through the water replenishing component. The water replenishing component includes a first water pump 6 and a first water supply pipe 8. In Figure 2 and Figure 3Among them, the dotted line segment with an arrow indicates the air flow direction.

[0026] An air inlet 101 and an air outlet 102 are respectively arranged on the outer casing 1. The air inlet 101 is arranged on the side of the outer casing 1, and the air outlet 102 is arranged on the top of the outer casing 1. An air passage 12 is arranged between the air inlet 101 and the air outlet 102. The first water tank 2 is located at the lower part of the outer casing 1, the first water pump 6 is arranged in the first water tank 2, and the fan 11 and the wet curtain 10 are respectively arranged in the air passage 12.

[0027] The second water tank 3 is located between the wet curtain 10 and the first water tank 2. The lower part of the wet curtain 10 is located in the second water tank 3, and the second water pump 7 is arranged in the second water tank 3. The third water tank 4 and the fourth water tank 5 are arranged above the wet curtain 10. One end of the first water supply pipe 8 is communicated with the first water pump 6, and the other end is communicated with the third water tank 4. The first water pump 2 replenishes water to the third water tank 4 through the first water supply pipe 8. One end of the second water supply pipe 9 is communicated with the second water pump 7, and the other end is communicated with the fourth water tank 5. The second water pump 7 replenishes water to the fourth water tank 5 through the second water supply pipe 9.

[0028] The water outlet 41 of the third water tank 4 and the water inlet 51 of the fourth water tank 5 are communicated with each other through a connecting pipe 13. The position of the water outlet 41 is higher than the position of the water inlet 51. A heater 14 is arranged on the connecting pipe 13. The heater 14 heats the water stored in the connecting pipe 13 to make it boiling water. The boiling water continuously flows into the fourth water tank 5. A water outlet 52 is arranged at the bottom of the fourth water tank 5. The water outlet 52 is located above the wet curtain 10. An open mouth 53 is arranged at the top of the fourth water tank 5. The open mouth 53 is communicated with the air passage 12.

[0029] Because there is a height difference between the water outlet 41 of the third water tank 4 and the water inlet 51 of the fourth water tank 5, the water stored in the connecting pipe 13 expands after being heated by the heater 14, and its expansion volume is related to the temperature. According to the principle of communicating vessels, adjusting this height difference enables the water stored in the connecting pipe 13 to flow into the fourth water tank 5 from the water inlet 51 after being heated to an ideal temperature.

[0030] In the present utility model, under the action of the heater 14, the water stored in the connecting pipe 13 is heated to boiling water. The boiling water for sterilization enters the fourth water tank 5. The water stored in the third water tank 4 automatically replenishes the connecting pipe 13, and the boiling water continuously enters the fourth water tank 5. The boiling water in the fourth water tank 5 flows into the wet curtain 10 from the water outlet 52 to wet the wet curtain 10. After the wet curtain 10 is wetted by the boiling water, it becomes hot water. The hot steam of the boiling water enters the air duct 12 through the open port 53 and is discharged from the air outlet 102. The moist water vapor in the wet curtain 10 also enters the air duct 12 with the airflow and is discharged from the air outlet 102. By using the boiling water after boiling sterilization, the present utility model generates hot steam (i.e., hot humidification) and moist water vapor (i.e., cold humidification). The hot steam of hot humidification and the moist water vapor of cold humidification are simultaneously discharged from the air outlet 102 by the fan 11, increasing the humidification amount.

[0031] The second water tank 3 collects the excess hot water after wetting the wet curtain 10. A low water level sensor (not shown in the figure) and a high water level sensor 15 are also provided in the second water tank 3. When the low water level sensor is triggered, the second water pump 7 is controlled to start, and water is replenished to the fourth water tank 5 through the second water supply pipe 9. When the high water level sensor 15 is triggered, the first water pump 6 is controlled to stop operating, and the water supply to the third water tank 4 is stopped, preventing the hot water in the second water tank 3 from overflowing the second water tank 3 and causing waste of the thermal energy of the hot water, thus playing a role in reducing power consumption. At the same time, the water participating in humidification is all boiling water after boiling sterilization, and only the boiling water after boiling sterilization participates in the cyclic humidification.

[0032] A normally open solenoid valve 16 and a return water pipe 17 are also provided on the second water tank 3. The normally open solenoid valve 16 is provided on the return water pipe 17, and the outlet of the return water pipe 17 is communicated with the first water tank 2. After the normally open solenoid valve 16 is powered off, the return water pipe 17 is conducted, and the hot water stored in the second water tank 3 flows back to the first water tank 2 through the return water pipe 17, so that the wet curtain 10 is not immersed in the hot water and is not prone to breed bacteria after lacking water.

[0033] A central housing 18 is arranged inside the outer housing 1. An upper water tank 19, a middle housing 20 and a lower water tank 21 are respectively arranged on the central housing 18, and the upper water tank 19 and the lower water tank 21 are respectively positioned on the outer housing 1. The upper water tank 19 and the middle housing 20 are connected by a plurality of spokes 22, and the gap between adjacent spokes 22 is part of the air passing duct 12. A sealing ring 23 is arranged at the connection between the middle housing 20 and the lower water tank 21. The wet curtain 10 is arranged between the upper water tank 19 and the lower water tank 21, and the middle housing 20 is located in the cavity in the middle of the wet curtain 10. The third water tank 4 and the fourth water tank 5 are respectively arranged on the upper water tank 19, and the second water tank 3 is arranged on the lower water tank 21. A plurality of water passing holes 24 are arranged on the middle housing 20 and communicated with the second water tank 3. The connecting pipe 13, the heater 14, the second water pump 7, the second water replenishing pipe 9, the low water level sensor and the high water level sensor 15 are respectively located in the middle housing 20, and the first water replenishing pipe 8 is located in the cavity of the wet curtain 10.

[0034] A low water level probe 25 and a high water level probe 26 are respectively arranged on the third water tank 4. The height of the position where the high water level probe 26 is located is lower than the height of the water inlet 51 of the fourth water tank 5, and the height of the position where the low water level probe 25 is located is higher than the height of the water outlet 41. When the water stored in the third water tank 4 is lower than the position where the low water level probe 25 is located, the low water level probe 25 is triggered to control the first water pump 6 to start replenishing water to the third water tank 4. When the water stored in the third water tank 4 is higher than the position where the high water level probe 26 is located, the high water level probe 26 is triggered to control the first water pump 6 to stop replenishing water to the third water tank 4.

[0035] Because the height of the water inlet 51 of the fourth water tank 5 is higher than the height of the water outlet 41 of the third water tank 4, and even higher than the height of the position where the high water level probe 26 is located, the water stored in the third water tank 4 will not flow into the fourth water tank 5 from the water inlet 51 before boiling, ensuring that only boiling water can flow from the connecting pipe 13 to the fourth water tank 5.

[0036] An anti-dry burning temperature sensor (not shown in the figure) is arranged on the heater 14. When the temperature of the heater 14 exceeds the set temperature, the anti-dry burning temperature sensor is triggered to control the heater 14 to stop heating, providing overheat protection for the humidifier.

[0037] Please also refer to Figure 2 、 Figure 7As shown in the figure, a water distribution tray 27 is provided between the fourth water tank 5 and the wet curtain 10. A water distribution cavity 271 is provided on the water distribution tray 27. The water distribution cavity 271 is located directly below the water outlet 52, and the water distribution cavity 271 collects the boiling water falling from the water outlet 52. A plurality of water dropping holes 272 are provided on the bottom surface of the water distribution cavity 271, and the plurality of water dropping holes 272 penetrate through the water distribution tray 27. The wet curtain 10 is located directly below the water dropping holes 272, and the boiling water in the water distribution cavity 271 drips from the water dropping holes 272 onto the wet curtain 10 to moisten the wet curtain 10.

[0038] An annular step 273 is provided around the top of each of the water dropping holes 272. The provision of the annular step 273 facilitates the uniform drainage of the boiling water collected in the water distribution tray 27, which is evenly distributed onto the wet curtain 10 to ensure that the entire wet curtain 10 is moistened and soaked.

[0039] The connecting pipe 13 is a U-shaped elbow pipe and can also be in other shapes such as a spiral pipe.

[0040] Please also refer to Figure 2 、 Figure 8 As shown in the figure, a water collecting tray 28 is provided between the wet curtain 10 and the second water tank 3. A plurality of water outlet holes 281 are provided on the water collecting tray 28. The excess hot water in the wet curtain 10 drips into the second water tank 3 through the water outlet holes 281. A water collecting cavity 282 is also provided on the water collecting tray 28, and the water outlet holes 281 are provided on the bottom surface of the water collecting cavity 282. The water collecting cavity 282 collects the excess hot water dripping from the wet curtain 10. The purpose of providing the water collecting tray 28 is to collect the excess hot water of the wet curtain 10 and reduce the noise of the hot water dripping into the second water tank 3. On the other hand, the water collecting tray 28 supports the wet curtain 10, and there is a certain distance between the wet curtain 10 and the inner bottom surface of the second water tank 3. After the humidifier is turned off, the wet curtain 10 does not need to be immersed in the remaining hot water in the second water tank 3, and the wet curtain 10 is in a water-deficient state.

[0041] In the humidifier with a large humidification amount of the present utility model, the water circulation process is as follows:

[0042] The water stored in the first water tank 2 is transported to the third water tank 4 through the first water pump 6 and the first water replenishing pipe 8. The water stored in the third water tank 4 automatically flows into the connecting pipe 13. Under the action of the heater 14, the water is heated to boiling water and then continuously and automatically flows into the fourth water tank 5. The water stored in the third water tank 4 is automatically replenished into the connecting pipe 13. The boiling water flows into the wet curtain 10, wets the wet curtain 10 and becomes hot water, which is collected by the second water tank 3. The hot steam of the boiling water is discharged from the air outlet 102 after passing through the air passing duct 12. The hot water collected by the second water tank 3 is transported to the fourth water tank 5 through the second water pump 7 and the second water replenishing pipe 9 for recycling. The circulating water for humidification of the present utility model is boiling water after boiling and sterilization, not cold water or raw water. The humidifying moisture is generated from the boiling water after boiling and sterilization. The boiling water is used for humidification to prevent the moisture from carrying bacteria and ensure the air quality after humidification.

[0043] In addition, after the humidifier is shut down, the excess hot water stored in the second water tank 3 flows back to the first water tank 2 through the normally open solenoid valve 16 and the water return pipe 17. There is no excess hot water at the wet curtain 10, and the wet curtain 10 is not immersed in hot water for a long time, so it is not easy for bacteria to breed due to water shortage at the wet curtain 10.

[0044] Please also refer to Figures 1 to 6 as shown, the present utility model also discloses a method for using a humidifier with a large humidification amount as described above, including the following steps:

[0045] Step 1: Start the first water pump 6, and transport the water stored in the first water tank 2 to the third water tank 4 through the first water replenishing pipe 8. The water stored in the third water tank 4 enters the connecting pipe 13.

[0046] Step 2: Start the fan 11. The external air flow enters the air passing duct 12 inside the outer housing 1 from the air inlet 101, and successively passes through the wet curtain 10 and the fourth water tank 5, and then is discharged from the air outlet 102 of the outer housing 1.

[0047] Step 3: At the same time, energize the heater 14. The heater 14 heats the connecting pipe 13 so that the water stored in the connecting pipe 13 is boiled into boiling water and then flows into the fourth water tank 5. The water stored in the third water tank 4 is continuously and automatically replenished into the connecting pipe 13. The boiling water continuously enters the fourth water tank 5. The boiling water in the fourth water tank 5 flows into the wet curtain 10 from the water outlet 52 to wet the wet curtain. The hot steam of the boiling water enters the air passing duct 12 from the open port 53 and is then discharged from the air outlet 102 of the outer housing 1. The moist water vapor in the wet curtain 10 also enters the air passing duct 12 along with the air flow and is discharged from the air outlet 102 of the outer housing 1.

[0048] During the continuous operation of the above steps, the following steps are also carried out as needed:

[0049] Step 4. When the water level in the third water tank 4 is lower than the position of the low water level probe 25, the low water level probe 25 is triggered, and the first water pump 6 is controlled to start to replenish water to the third water tank 4; when the water level in the third water tank 4 is higher than the position of the high water level probe 26, the high water level probe 26 is triggered, and the first water pump 6 is controlled to stop replenishing water to the third water tank 4.

[0050] Step 5. The second water tank 3 collects excess hot water after wetting the wet curtain 10. When the low water level sensor is triggered, the second water pump 7 is controlled to start and replenish water to the fourth water tank 5 through the second water replenishment pipe 9; when the high water level sensor 15 is triggered, the first water pump 6 is controlled to stop running and stop replenishing water to the third water tank 4.

[0051] Step 6: After the humidifier is shut down, the normally open solenoid valve 16 on the second water tank 3 is powered off, the return pipe 17 is connected, and the hot water in the second water tank 3 flows back to the first water tank 2 through the return pipe 17.

[0052] The utility model uses a heater 14 to directly heat the water stored in the connecting pipe 13 and turn it into boiling water. The hot steam generated by the boiling water enters the air duct 12 from the open port 53 and is then discharged from the outer shell 1 from the air outlet 102. The boiling water flows into the wet curtain 10 from the water outlet 52 to moisten the wet curtain. The moist water vapor in the wet curtain 10 also enters the air duct 12 with the wind flow and is discharged from the outer shell 1 from the air outlet 102. Not only the humidification amount is increased through hot humidification and cold humidification, but also the atomized water vapor can be quickly discharged, thereby achieving the effect of rapid atomization.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A humidifier with a large humidification capacity, comprising a housing body, a first water tank, a wet curtain and a fan arranged in the housing body, an air inlet and an air outlet are respectively arranged on the housing body, an air passing duct is arranged between the air inlet and the air outlet, the fan and the wet curtain are respectively arranged in the air passing duct, and it is characterized in that, A third water tank and a fourth water tank are respectively arranged above the wet curtain. The water stored in the first water tank is conveyed to the third water tank through a water replenishing component. The water outlet of the third water tank and the water inlet of the fourth water tank are interconnected through a connecting pipe, and the position of the water outlet is higher than that of the water inlet. A heater is arranged on the connecting pipe, and the heater heats the water stored in the connecting pipe to make it boiling water. The boiling water continuously flows into the fourth water tank. A water outlet is arranged at the bottom of the fourth water tank, and the water outlet is located above the wet curtain. The boiling water in the fourth water tank flows to the wet curtain through the water outlet to moisten the wet curtain. An open mouth is arranged at the top of the fourth water tank, and the open mouth is communicated with the air passing duct. The hot steam of the boiling water enters the air passing duct from the open mouth and then is discharged from the air outlet out of the outer shell. The moist water vapor in the wet curtain also enters the air passing duct along with the air flow and is discharged from the air outlet out of the outer shell.

2. The humidifier with a large humidification amount according to claim 1, characterized in that, A second water tank and a second water replenishing pipe are also arranged in the outer shell. The second water tank is located between the wet curtain and the first water tank, and the lower part of the wet curtain is located in the second water tank. The second water tank collects the excess hot water after moistening the wet curtain. A second water pump, a low water level sensor and a high water level sensor are respectively arranged in the second water tank. One end of the second water replenishing pipe is communicated with the second water pump, and the other end is communicated with the fourth water tank. The second water pump replenishes water to the fourth water tank through the second water replenishing pipe. When the low water level sensor is triggered, the second water pump is controlled to start and replenish water to the fourth water tank through the second water replenishing pipe. When the high water level sensor is triggered, the water replenishing component is controlled to stop replenishing water to the third water tank.

3. The humidifier with a large humidification capacity according to claim 2, characterized in that, A normally open solenoid valve and a return pipe are also arranged on the second water tank. The normally open solenoid valve is arranged on the return pipe, and the outlet of the return pipe is communicated with the first water tank. After the normally open solenoid valve is powered off, the return pipe is conducted, and the hot water stored in the second water tank flows back to the first water tank through the return pipe.

4. The humidifier with a large humidification capacity according to claim 2, characterized in that, A central housing is arranged in the outer shell. An upper water tank body, a middle housing and a lower water tank body are respectively arranged on the central housing. The upper water tank body and the lower water tank body are respectively positioned on the outer shell. The upper water tank body and the middle housing are connected by a plurality of spokes. The gap between adjacent spokes is part of the air passing duct. A sealing ring is arranged at the connection between the middle housing and the lower water tank body. The wet curtain is arranged between the upper water tank body and the lower water tank body. The middle housing is located in the cavity in the middle of the wet curtain. The third water tank and the fourth water tank are respectively arranged on the upper water tank body, and the second water tank is arranged on the lower water tank body. A plurality of water passing holes are arranged on the middle housing and are communicated with the second water tank. The connecting pipe, the heater, the second water pump, the second water replenishing pipe, the low water level sensor and the high water level sensor are respectively located in the middle housing.

5. The humidifier with a large humidification capacity according to claim 1, characterized in that, The water replenishing component includes a first water pump and a first water replenishing pipe. The first water pump is arranged in the first water tank. One end of the first water replenishing pipe is communicated with the first water pump, and the other end is communicated with the third water tank. The first water pump replenishes water to the third water tank through the first water replenishing pipe.

6. The humidifier with a large humidification amount according to claim 5, characterized in that, A low water level probe and a high water level probe are respectively arranged on the third water tank. When the water stored in the third water tank is lower than the position where the low water level probe is located, the low water level probe is triggered, and the first water pump is controlled to start to replenish water to the third water tank. When the water stored in the third water tank is higher than the position where the high water level probe is located, the high water level probe is triggered, and the first water pump is controlled to stop replenishing water to the third water tank.

7. The humidifier with a large humidification capacity according to claim 1, wherein A water distribution tray is arranged between the fourth water tank and the wet curtain. A water distribution cavity is arranged on the water distribution tray. The water distribution cavity is located directly below the water outlet. The water distribution cavity collects the boiling water falling from the water outlet. A plurality of water dropping holes are arranged on the bottom surface of the water distribution cavity. The wet curtain is located directly below the water dropping holes. The boiling water in the water distribution cavity drips onto the wet curtain through the water dropping holes to wet the wet curtain.

8. The humidifier with a large humidification amount according to claim 7, wherein An annular step is arranged around the top of each of the water dropping holes.

9. The humidifier with a large humidification capacity as claimed in claim 1, wherein, A water collection tray is arranged between the wet curtain and the second water tank. A plurality of water outlet holes are arranged on the water collection tray. The excess hot water in the wet curtain drips into the second water tank through the water outlet holes.

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