Steam conveying air conditioning unit

Abstract

The invention relates to the technical field of air humidification, in particular to a steam conveying air conditioning unit which comprises a shell with an upper-layer space and a lower-layer space, and an air humidification device located in the lower-layer space and an air extractor located in the upper-layer space are arranged in the shell. The shell is provided with an air inlet communicated with the lower-layer space, an air outlet communicated with the upper-layer space, and an air channel for communicating the lower-layer space with the upper-layer space; the air extracting device can drive airflow to sequentially pass through the air inlet, the lower-layer space, the air channel, the upper-layer space and the air outlet, and the air humidifying device can humidify the airflow. Compared with an air energy heat pump dryer, the air energy heat pump dryer can operate in an extreme environment, the unit noise is low, and an indoor unit and an outdoor unit are not needed. Through the reasonable interaction of the closed air channel, condensate water recovery and pressure relief, the synchronous adjustment function of steam discharge and pressure relief in two stages is completed, and reliable step-by-step adjustment is achieved in a low-cost mode.

Description

Technical Field

[0001] This invention relates to the field of air humidification technology, and more specifically to a steam delivery air conditioning unit. Background Technology

[0002] Air humidification is an essential step in tobacco production. Currently, the tobacco industry generally uses air-source heat pump dryers for air humidification. These devices have a high initial investment cost, including indoor and outdoor units, as well as advanced heat pump technology and intelligent control systems. Furthermore, the performance of air-source heat pump dryers is significantly affected by ambient temperature and humidity. In extremely low or high humidity environments, their operating efficiency and drying effect may be compromised. Finally, during operation, air-source heat pump dryers generate considerable noise, causing disturbance to the surrounding environment and operators. This necessitates effective sound insulation measures during installation to reduce noise pollution, indirectly increasing installation and operating costs. Summary of the Invention

[0003] This invention provides a steam conveying air conditioning unit, the purpose of which is to reduce initial investment costs.

[0004] The above objectives are achieved through the following technical solutions: A steam delivery air conditioning unit includes an outer shell with an upper space and a lower space. The outer shell is provided with an air humidification device located in the lower space and an air extraction device located in the upper space. The outer shell is provided with an air inlet communicating with the lower space, an air outlet communicating with the upper space, and an air duct communicating with the lower space and the upper space. The air extraction device can drive the airflow to pass through the air inlet, the lower space, the air duct, the upper space and the air outlet in sequence, and the air humidification device can humidify the airflow.

[0005] The outer casing includes a first housing and a second housing fixed to the upper end of the first housing. The air inlet is located at the left end of the first housing, and a first air valve is installed on the first housing at the air inlet. The air humidification device is a steam humidifier, which is fixed to the first housing. The upper part of the first housing is connected to the second housing to form the air passage. The air passage is located on the right side of the steam humidifier, and the air extraction device is located on the left side of the air passage. The air outlet is located on the second housing.

[0006] The air extraction device is a centrifugal fan without a volute. The centrifugal fan takes in air on the right side and exhausts air from the top. The air outlet of the outer casing is located above the centrifugal fan. The electric drive system of the centrifugal fan is set to the left. A partition fixed to the outer casing is installed in the upper space, which separates the motor of the centrifugal fan from the airflow.

[0007] The outer shell includes a thermal break bridge type frame and a sandwich panel fixed on the thermal break bridge type frame. The sandwich panel makes the upper space and the lower space inside the outer shell. The sandwich panel is filled with polyurethane foam between the inner and outer color steel plates.

[0008] The bottom of the outer casing is equipped with a water receiving structure, and the outer casing is equipped with a drainage structure located below the air extraction device, which directs water to the water receiving structure.

[0009] The drainage structure includes a first container fixed to the outer shell, and a first pipe fixed to and connected to the first container, the first pipe extending toward the water receiving structure.

[0010] The water-receiving structure includes a second container covering the bottom of the inner shell, the upper surface of the second container being recessed towards the central region, and a drain pipe being fixedly connected to and connected to the middle of the lower end of the second container.

[0011] The drain pipe is an expanded diameter pipe with an inner wall that increases in size from top to bottom. A one-way valve is installed inside the expanded diameter pipe to close it by rebounding upwards. When the one-way valve is pressed and moves downwards, a gradually increasing discharge port is created between the one-way valve and the inner wall of the expanded diameter pipe. A telescopic cylinder is fixed inside the upper part of the outer shell. A connector located in the lower space is fixed on the telescopic cylinder. A door is fixed on the top of the connector. A door frame is fixed on the outer shell and placed on the air passage. The door can enter the door frame from top to bottom to close the air passage. When the connector moves downwards, it can push the one-way valve to move downwards and open the expanded diameter pipe.

[0012] It also includes a suction pump, with an air tube fixed to the bottom of the connector and a second tube fixed to the outer shell. The suction pump is connected to the second tube, and the left end of the second tube can connect with the outer wall of the descending air tube. A first air hole is provided on the upper side of the air tube, and a second air hole is provided on the lower side of the air tube. In the initial stage, the air tube is higher than the left end of the second tube, and the cavity door is higher than the door frame. In the first stage, the bottom of the air tube pushes the one-way valve down, so that the one-way valve and the inner wall of the expansion tube create a discharge port. At this time, the second air hole is located above the horizontal tube at the left end of the second tube. In the second stage, the air tube descends further, and the second air hole is connected to the horizontal tube at the left end of the second tube.

[0013] The one-way valve includes a base fixed inside an expansion tube, a limit member slidably connected to the base, a plug fixed to the top of the limit member, and a spring between the base and the plug, the spring providing the force for the plug to close the expansion tube.

[0014] The beneficial effects of the steam conveying air conditioning unit of the present invention are as follows: Compared to air source heat pump dryers, this system can operate in extreme environments with low noise and eliminates the need for separate indoor and outdoor units, solving current technical challenges. The steam delivery air conditioning unit consists of only two major components: a plug-in centrifugal fan without a volute and steam humidification. This significantly reduces the unit's size, thereby minimizing floor space and improving space utilization. Through the rational interaction of closed air ducts, condensate recovery, and pressure relief, it achieves synchronized adjustment of steam discharge and pressure relief in two stages, enabling reliable step-by-step regulation at low cost. Attached Figure Description

[0015] Figure 1 This illustration shows a schematic diagram of a basic model of a steam delivery air conditioning unit according to the present invention. Figure 1 ; Figure 2 A schematic diagram of the basic model of a steam delivery air conditioning unit is shown. Figure 2 ; Figure 3 A schematic diagram of an improved steam delivery air conditioning unit is shown; Figure 4 This diagram illustrates the positional relationship between the horizontal tube at the left end of the trachea and the second trachea. Figure 1 ; Figure 5 This diagram illustrates the positional relationship between the horizontal tube at the left end of the trachea and the second trachea. Figure 2 ; Figure 6 A schematic diagram showing the reduced distance between the cavity door and the door frame during the first stage of the cavity door's descent; Figure 7 This diagram shows the positional relationship between the trachea, the horizontal tube at the left end of the second tube, and the plug during the first stage of the descent of the endotracheal valve. Figure 8 A schematic diagram showing the closure of the cavity frame during the second stage of the cavity descent is displayed; Figure 9 This diagram shows the positional relationship between the trachea, the horizontal tube at the left end of the second tube, and the plug during the second stage of the descent of the endotracheal valve. Figure 10 A three-dimensional schematic diagram of a plug-sealed expansion tube is shown. Figure 1 ; Figure 11 A three-dimensional schematic diagram of a plug-sealed expansion tube is shown. Figure 2 ; Figure 12 A schematic of the flow equalization plate is shown. Figure 1 ; Figure 13 A schematic of the flow equalization plate is shown. Figure 2 .

[0016] In the diagram: 1. First chamber; 2. First air valve; 3. Steam humidifier; 4. Second chamber; 5. Partition; 6. Centrifugal fan; 7. Second air valve; 8. First container; 9. First pipe; 10. Second container; 11. Chamber door; 12. Heat dissipation window; 13. Telescopic cylinder; 14. First connector; 15. Second connector; 16. Chamber door; 17. Door frame; 18. Air pipe; 18a. First air hole; 18b. Second air hole; 19. Suction pump; 20. Valve; 21. Second pipe; 22. Expanding pipe; 23. Base; 24. Limiting component; 25. Spring; 26. Plug; 31. Constant flow equalization plate; 32. Dynamic flow equalization plate; 33. Sealing edge. Detailed Implementation

[0017] A steam delivery air conditioning unit, reference Figure 1 and 2 The system includes a first housing 1 and a second housing 4 fixed to the upper part of the first housing 1. The left end of the first housing 1 has an installation port for housing a first air valve 2, which is fixed to the first housing 1. When the first air valve 2 is open, it creates an air inlet, forming an air intake section; when the first air valve 2 is closed, it seals the air inlet. A steam humidifier 3 is fixed to the left side inside the first housing 1, forming a steam humidification section. The upper right section of the first housing 1 is connected to the second housing 4, forming an air passage connecting the first housing 1 and the second housing 4.

[0018] Among them, the steam humidifier 3 is a steam fast-absorption atomizing humidifier in the prior art. It is preferably a product made of all stainless steel, which has the characteristics of high temperature resistance, corrosion resistance, no pollution and long service life. More preferably, but not necessarily, it can be equipped with a unique sound-absorbing structure to effectively absorb the whistling and noise of high-pressure steam during the flow and jet process; for example, but not limited to the excellent JLKX type fast absorption steam humidifier, or the LeShi fast absorption steam humidifier.

[0019] Inside the second housing 4, two partitions 5 are fixedly connected to the left and right sides, dividing the second housing 4 into three chambers: left, middle, and right. The aforementioned air passage connects the first housing 1 to the right-side chamber of the second housing 4. The middle chamber of the second housing 4 houses the centrifugal fan 6. The centrifugal fan 6 is preferably a volute-less centrifugal fan, such as, but not limited to, an EVG Group insertion centrifugal fan, chosen for its high efficiency, low noise, low maintenance costs, and compact structure, which effectively reduces energy consumption. Below the centrifugal fan 6, a first container 8 is located inside the second housing 4. The bottom of the first container 8 is fixedly connected to and connected to a first pipe 9, forming a drainage structure that guides water into the first housing 1. A one-way valve can be fixed inside or at the bottom of the first pipe 9 to block upward airflow while allowing downward flow of fluid. Centrifugal fan 6 is fixed to partition 5 on the left side. The air inlet of centrifugal fan 6 faces right and is connected to partition 5 on the right side, allowing the centrifugal fan 6 to communicate with the air duct. The right end of centrifugal fan 6 can also be fixed to partition 5 on the right side to increase stability, and shock-absorbing pads can be installed at the connection point. Installation can be adapted according to the specific shock-absorbing pad product instructions. An installation port is opened at the top of the second housing 4, and a second air valve 7 is installed at this port. The second air valve 7 is fixed to the second housing 4 in the middle cavity, with the air outlet of centrifugal fan 6 facing upwards. When the second air valve 7 is open, an air outlet is created, forming an air outlet section. When the second air valve 7 is closed, the air outlet at the top of the second housing 4 is sealed.

[0020] Thus, combined Figure 1 The arrows indicate the entry and exit points of the airflow. The airflow passes sequentially through the first air valve 2, the steam humidifier 3, the right side area of ​​the first housing 1, the right side cavity of the second housing 4, the centrifugal fan 6, and the second air valve 7. The left side cavity of the second housing 4, which the airflow does not pass through, is the heat dissipation area for the centrifugal fan 6 motor. The motor of the centrifugal fan 6 is placed in the heat dissipation area, and a heat dissipation louver is installed at the left end of the second housing 4 to allow outside air to enter the left side cavity of the second housing 4, increasing the motor's heat dissipation capacity.

[0021] This constitutes the basic configuration of this application, allowing users to reduce initial costs by humidifying the treated air and increasing its humidity. This type of steam-transfer air conditioning unit can operate independently without an indoor unit; by connecting the air outlet section to the indoor unit via ductwork, it can reduce the equipment's footprint relative to the room, thus improving indoor space utilization. The entire unit has a compact internal space, a narrow floor area, and a slim, vertical design, meeting the requirements for locations with limited space. The first housing 1 and the second housing 4 are constructed from a thermally broken frame and sandwich panels. Installation of other existing technology products can be achieved by purchasing brackets for fixed support.

[0022] To further explain, the frames of the first housing 1 and the second housing 4 are composed of reinforced nylon tees with thermal break aluminum alloy skeletons, combined with polyurethane foam panels. The aluminum alloy frame and panels are separate, allowing for extensive panel disassembly and assembly, facilitating internal component replacement and maintenance. The panels adopt a double-layer sandwich structure, with the standard configuration consisting of inner and outer color steel plates filled with high-pressure polyurethane foam in between, resulting in a high thermal resistance, low leakage, and high strength insulated housing. The bottom of the first housing 1 is fixedly connected to a steel structure base via bolt and nut assemblies. The steel structure base can be a one-piece welded channel steel base or a one-piece C-shaped steel base, providing excellent load-bearing capacity and facilitating forklift transport of the unit. The first housing 1 has an open top structure, while the second housing 4 has a sealed bottom structure. The air duct is formed by opening an opening at the bottom of the right-side cavity area of ​​the second housing 4, communicating with the first housing 1, to reduce processing difficulty.

[0023] To facilitate daily maintenance and repair, two water trays are laid flat at the bottom of the first housing 1, seamlessly connected by a high-grade waterproof material. The edges of the water trays are also bonded to the first housing 1 using the same high-grade waterproof material. The bottom of the middle chamber of the second housing 4 also contains a water tray, namely the first container 8. This water tray is fixed to the bottom and connected to a stainless steel drain pipe leading to the lower water tray, draining condensate into the water tray of the first housing 1 to prevent moisture leakage. The double water tray assembly is easier to install than a large water tray, reducing the difficulty of distributing the water tray products.

[0024] Furthermore, a door 11 that can be opened and closed is installed on the first housing 1, located at the steam humidification section. Two doors 11 that can be opened and closed are installed on the second housing 4, with the two doors 11 on the left and right sides of the cavity, respectively. The doors 11 are hinged multi-handle aluminum-plastic-aluminum doors, made of thermally broken integral foam molding, with adhesive sealing and a built-in safety pressure relief device, featuring high strength, good sealing performance, and high safety. The specific installation method depends on the manufacturer's construction process, and is mostly hinged.

[0025] In addition to the basic steam delivery air conditioning unit mentioned above, we have also developed an upgraded steam delivery air conditioning unit. Combined with... Figure 3 We integrated two water trays into a larger second container 10 to replace the use of spliced ​​water trays. The upper surface of the second container 10 is recessed towards the center, and the lower middle part of the second container 10 is fixedly connected to and connected to an expansion pipe 22, thereby guiding water to the expansion pipe 22. The inner wall of the expansion pipe 22 increases in diameter from top to bottom. The outer perimeter of the second container 10 is fixed to the inner wall of the first housing 1 using high-temperature resistant and waterproof structural adhesive to fill any gaps.

[0026] Further description: An electrically operated telescopic cylinder 13 is fixed inside the left cavity of the second housing 4. The telescopic end of the cylinder 13 is positioned downwards and passes through the second housing 4 from top to bottom into the first housing 1. A sealing ring is installed at the interface between the second housing 4 and the telescopic section of the cylinder 13. The sealing ring is fixed to the second housing 4 and allows the telescopic section of the cylinder 13 to pass through. The sealing ring deforms due to the compression of the telescopic section to increase the sealing effect. A connecting component is also added: a first connecting component 14 extending to the right is fixed to the bottom of the telescopic end of the cylinder 13, allowing the first connecting component 14 to be positioned below the right cavity of the second housing 4. A second connecting component 15 is fixed to the right end of the first connecting component 14. The top of the second connecting component 15 enters the right cavity of the second housing 4, and the bottom of the second connecting component 15 is located directly above the expansion pipe 22. A cavity door 16 is fixed to the top of the second connecting component 15, and a door frame 17 is fixed to the inner wall of the right cavity of the second housing 4. The initial position of the cavity door 16 is higher than that of the door frame 17. As the telescopic cylinder 13 extends, it causes the cavity door 16 to descend, and the distance between the cavity door 16 and the door frame 17 gradually decreases. When the cavity door 16 enters the door frame 17, the air passage between the first box 1 and the second box 4 can be sealed. In this process, the steam emission at the second air valve 7 can be gradually reduced until the steam transmission is cut off internally.

[0027] Further description, combined with Figure 4 and 5 The bottom of the second connector 15 is fixedly connected to an air pipe 18, which is a hollow structure with closed upper and lower ends. A first air hole 18a, higher than the second container 10, is provided on the upper wall of the air pipe 18, and a second air hole 18b is provided on the lower side of the air pipe 18. A suction pump 19 is installed outside the first housing 1. The suction pump 19 can be a gas-liquid dual-purpose pump, such as a negative pressure pump, but is not limited to a water ring vacuum pump or a vortex pump. The suction pump 19 is fixedly connected to and communicates with one passage of the two-way valve 20. The other passage of the valve 20 is fixedly connected to and communicates with a second pipe 21. The outer wall of the second pipe 21 or the outer wall of the left passage of the valve 20 is fixed and sealed to the first housing 1. The left end of the second pipe 21 extends into the second container 10, and the left end of the second pipe 21 is a horizontally extending pipe structure, referred to as a horizontal pipe. The left end of the horizontal pipe has an arc-shaped cross-section for surface contact connection with the descending air pipe 18. In the initial stage, the trachea 18 is higher than the left end of the second trachea 21, and the valve 16 is also higher than the door frame 17, so the airways between the first chamber 1 and the second chamber 4 are open. If it is necessary to add a flow equalization plate to ensure uniform airflow, the flow equalization plate should be higher than the valve 16. Preferably, combined with Figure 12 and Figure 13The flow equalization plate includes a fixed flow equalization plate 31 fixed inside the second housing 4, with the fixed flow equalization plate 31 facing away from the housing door 11. A channel is provided at the lower part of the fixed flow equalization plate 31, and a movable flow equalization plate 32 is inserted into the channel, allowing the movable flow equalization plate 32 to slide on the fixed flow equalization plate 31, with the sliding direction of the fixed flow equalization plate 31 being towards or away from the housing door 11. Receiving cavities are formed between the left and right ends of the movable flow equalization plate 32 and the fixed flow equalization plate 31. A silicone sealing edge 33 is fixed to the outer edge of the top of the movable flow equalization plate 32. When the movable flow equalization plate 32 slides away from the housing door 11, it can enter the bottom of the fixed flow equalization plate 31, at which point the sealing edge 33 retracts into the receiving cavity. When the movable flow equalization plate 32 slides towards the housing door 11, the movable flow equalization plate 32 extends out from inside the fixed flow equalization plate 31. At this point, the sealing edge 33 unfolds, and the constant flow equalization plate 31, the dynamic flow equalization plate 32, and the sealing edge 33 form a flow equalization layer. The sealing edge 33 prevents steam from escaping through the gap between the dynamic flow equalization plate 32 and the second housing 4, ensuring that the steam mainly passes through the evenly distributed vents on the constant flow equalization plate 31 and the dynamic flow equalization plate 32 to achieve flow equalization. One end of a rope can be fixed to the dynamic flow equalization plate 32 at the end facing the door 11, and the other end of the rope can be fixed to the handle on the inside of the door 11, with the handle higher than the dynamic flow equalization plate 32. When the door 11 of the right cavity of the second housing 4 is opened towards the inside of the second housing 4, the opening of the door 11 can push the flow equalization plate 32 to slide into the constant flow equalization plate 31, exposing the cavity door 16 for easy inspection. When it is necessary to close the door 11, the door 11 uses the rope to directly pull the dynamic flow equalization plate 32 out of the constant flow equalization plate 31, reforming the flow equalization layer.

[0028] Further description: A one-way valve is installed inside the expanding pipe 22, which springs upward to close the expanding pipe 22. Combined with... Figure 6 and 7 This is the first stage of the downward movement of the tracheal tube 18, driven by the extension of the telescopic cylinder 13. During this stage, the distance between the chamber door 16 and the door frame 17 decreases, reducing the steam discharge capacity of the exhaust section and thus lowering the steam discharge volume. Simultaneously, the tracheal tube 18 also descends due to the extension of the telescopic cylinder 13, and the bottom of the tracheal tube 18 pushes the one-way valve down, creating a gap between the one-way valve and the inner wall of the expansion pipe 22, thereby allowing for natural pressure relief. At this time, the second vent 18b is located above the horizontal pipe at the left end of the second pipe 21. (Combined with...) Figure 8 and 9 When the trachea 18 descends further into the second stage, the cavity door 16 enters the door frame 17, cutting off the ability to supply steam to the second chamber 4. The one-way valve descends further and the inner wall of the expansion pipe 22 increases further, realizing the one-way valve in a fully open state, further improving the pressure relief capacity. At this time, the second vent 18b is connected to the horizontal pipe at the left end of the second pipe 21.

[0029] In the initial stage, valve 20 can be opened as needed to start the suction pump 19, allowing the second pipe 21 to extract and recycle water from the second container 10. A water immersion sensor can be fixed to the upper side of the second container 10. Optimally, valve 20 is replaced by a smart electronic valve instead of a manual valve, and the power plug of the suction pump 19 is connected to a smart socket. Valve 20, the water immersion sensor, and the smart socket are connected to the same gateway. When the water level in the second container 10 rises to the position of the water immersion sensor, the water immersion sensor sends a signal to valve 20 and the smart socket. Valve 20 opens, and the smart socket activates the suction pump 19 to automatically extract water, achieving intelligent control in a low-cost manner.

[0030] In the first stage, the second pipe 21 is sealed to the air pipe 18, resulting in natural pressure relief. In the second stage, the natural pressure relief capability is enhanced, enabling rapid pressure relief. Furthermore, in the second stage, since the second vent 18b is connected to the horizontal pipe at the left end of the second pipe 21, the suction pump 19 is activated for suction, allowing for active pressure relief using the second pipe 21. At this time, steam sequentially passes through the first vent 18a, air pipe 18, second vent 18b, and second pipe 21, achieving both natural and active pressure relief. The steam is also used to backwash the pipeline containing the expansion pipe 22 and the second pipe 21.

[0031] Combination Figure 10 and 11 The one-way valve includes a base 23 fixed to the bottom of the expansion tube 22. A limiting member 24 is inserted into the base 23, allowing the limiting member 24 to slide longitudinally relative to the base 23. A plug 26 is fixed to the top of the limiting member 24. A spring 25 is provided between the base 23 and the plug 26, so that the spring 25 provides an upward force for the plug 26, keeping the top of the plug 26 against the upper side of the inner wall of the expansion tube 22, thus completing the sealing of the expansion tube 22 by the plug 26. When the air tube 18 descends and presses down on the plug 26, the spring 25 is further compressed, allowing the plug 26 to move downward. The spring 25 can be directly sleeved on the limiting member 24, or the upper and lower ends of the spring 25 can be fixed to the plug 26 and the base 23 respectively.

Claims

1. A steam conveying air conditioning unit, characterized in that, It includes an outer shell with an upper and lower space. The outer shell is equipped with an air humidifier located in the lower space and an air extraction device located in the upper space. The outer shell is provided with an air inlet communicating with the lower space, an air outlet communicating with the upper space, and an air duct communicating with the lower and upper spaces. The air extraction device can drive the airflow to pass through the air inlet, the lower space, the air duct, the upper space and the air outlet in sequence, and the air humidifier can humidify the airflow.

2. The steam conveying air conditioning unit according to claim 1, characterized in that, The outer casing includes a first housing (1) and a second housing (4) fixed to the upper end of the first housing (1). The air inlet is located at the left end of the first housing (1), and a first air valve (2) is installed on the first housing (1) at the air inlet. The air humidification device is a steam humidifier (3), which is fixed to the first housing (1). The upper part of the first housing (1) is connected to the second housing (4) to form the air passage. The air passage is located on the right side of the steam humidifier (3), and the air extraction device is located on the left side of the air passage. The air outlet is located on the second housing (4).

3. The steam conveying air conditioning unit according to claim 1, characterized in that, The air extraction device is a centrifugal fan (6) without a volute. The centrifugal fan (6) has air intake on the right side and exhaust on the top. The air outlet of the outer casing is located above the centrifugal fan (6). The electric drive system of the centrifugal fan (6) is set to the left. A partition (5) fixed to the outer casing is set in the upper space. The partition (5) separates the motor of the centrifugal fan (6) from the airflow.

4. The steam conveying air conditioning unit according to claim 1, characterized in that, The outer shell includes a thermal break bridge type frame and a sandwich panel fixed on the thermal break bridge type frame. The sandwich panel makes the upper space and the lower space inside the outer shell. The sandwich panel is filled with polyurethane foam between the inner and outer color steel plates.

5. The steam transport air conditioning unit according to claim 1, characterized in that, The bottom of the outer casing is equipped with a water receiving structure, and the outer casing is equipped with a drainage structure located below the air extraction device, which directs water to the water receiving structure.

6. The steam transport air conditioning unit according to claim 5, characterized in that, The drainage structure includes a first container (8) fixed to the outer shell and a first pipe (9) fixed to and connected to the first container (8), the first pipe (9) extending toward the water receiving structure.

7. The steam transport air conditioning unit according to claim 5, characterized in that, The water-receiving structure includes a second container (10) covering the bottom of the inner shell, the upper surface of the second container (10) is recessed towards the central region, and a drain pipe is fixedly connected to and connected to the middle of the lower end of the second container (10).

8. The steam conveying air conditioning unit according to claim 7, characterized in that, The drain pipe is an expansion pipe (22). The inner wall of the expansion pipe (22) increases from top to bottom. A one-way valve is installed inside the expansion pipe (22) to close the expansion pipe (22) by rebounding upward. When the one-way valve is pressed and moves downward, a gradually increasing discharge port is generated between the one-way valve and the inner wall of the expansion pipe (22). A telescopic cylinder (13) is fixed at the top inside the outer shell. A connector located in the lower space is fixed on the telescopic cylinder (13). A cavity door (16) is fixed at the top of the connector. A door frame (17) is fixed on the outer shell and placed on the air passage. The cavity door (16) can enter the door frame (17) from top to bottom to close the air passage. After the connector moves downward, it can push the one-way valve to move downward to open the expansion pipe (22).

9. The steam conveying air conditioning unit according to claim 8, characterized in that, It also includes a suction pump (19), a duct (18) fixed at the bottom of the connector, and a second pipe (21) fixed on the outer shell. The suction pump (19) is connected to the second pipe (21). The left end of the second pipe (21) can connect with the outer wall of the descending duct (18). A first air hole (18a) is provided on the upper side of the duct (18), and a second air hole (18b) is provided on the lower side of the duct (18). In the initial stage, the duct (18) is higher than the left end of the second pipe (21), and at this time the cavity door (16) is higher than the door frame (17). In the first stage, the bottom of the duct (18) pushes the one-way valve down, so that the one-way valve and the inner wall of the expansion pipe (22) produce an outlet. At this time, the second air hole (18b) is located above the horizontal pipe at the left end of the second pipe (21). In the second stage, the duct (18) descends further, and the second air hole (18b) is connected to the horizontal pipe at the left end of the second pipe (21).

10. The steam conveying air conditioning unit according to claim 8, characterized in that, The one-way valve includes a base (23) fixed inside the expansion tube (22), a limit member (24) slidably connected on the base (23), a plug (26) fixed to the top of the limit member (24), and a spring (25) provided between the base (23) and the plug (26). The spring (25) provides the plug (26) with a force to close the expansion tube (22).

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