Low-noise self-circulation steam air conditioning device

Abstract

The invention discloses a low-noise self-circulation steam air conditioning device, which relates to the technical field of indoor heat supply systems and comprises a case, and a water supply pipeline, a heat supply water tank, a water pump, a steam generator, a steam pipeline, a cooling fan, a heat exchange module and a water return pipeline which are integrated in the case. Sound-absorbing cotton is arranged on the inner wall of the machine box, a sound-proof cover is further fixedly arranged in the machine box, the water pump is installed in the sound-proof cover, and a plurality of elastic supporting pieces are arranged between the water pump and the inner wall of the sound-proof cover. The closed self-circulation system is integrated in the machine case, the problem that indoor humidity is too high is effectively avoided, the heat supply efficiency is high, and installation is easy and convenient; through the multiple noise reduction design of the sound absorption cotton, the sound insulation cover and the elastic supporting piece, operation noise of vibration components such as the water pump is effectively isolated and absorbed, and silent operation is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of indoor heating systems, and particularly relates to a low-noise self-circulation steam air conditioning device. BACKGROUND

[0002] With the improvement of living standards, people's comfort requirements for indoor environment are increasing, especially in the aspect of winter heating, not only high-efficiency heating performance is required, but also higher standards for equipment operation noise, installation convenience and functional diversity are put forward. At present, the mainstream indoor heating equipment on the market mainly includes air conditioning systems based on compressors and heaters based on electric heating elements.

[0003] When the air conditioning system based on the compressor is heating, the core component compressor will produce a large mechanical noise, which can reach 55-65 decibels, seriously affecting the use experience of places such as bedrooms and study rooms that require a quiet environment. In addition, the system needs to be equipped with an outdoor unit, the installation process is complex, involves wall drilling, and has a certain damage to the building structure; in the winter low temperature environment, the outdoor unit is easy to frost, which leads to the decrease of heating efficiency, and frequent defrosting cycle is needed, which further affects the stability of heating and user experience.

[0004] The electric heater based on electric heating wire or PTC (Positive Temperature Coefficient) element, although the structure is relatively simple and does not need an outdoor unit, but its function is single, only can provide heating, and has problems such as dry air, risk of burns, low energy efficiency, etc., the comfort and safety need to be improved.

[0005] In addition, there are also attempts to use steam or hot water for heating in the prior art, but its system is usually open, the heating efficiency is low, the operation noise is large, and it also affects the temperature and humidity of the room, resulting in indoor damp, stuffy and other situations, affecting the use experience. Therefore, there is an urgent need for an air conditioning device which is convenient to install, has high heating efficiency and low operation noise. SUMMARY

[0006] In view of the problems in the prior art, the present application provides a low-noise self-circulation steam air conditioning device.

[0007] The low-noise self-circulation steam air conditioning device provided by the present application adopts the following technical scheme: The utility model provides a low noise self -circulation steam air conditioning device, including the cabinet and the integrated water supply pipeline, hot water tank, water pump, steam generator, steam pipeline, heat dissipation fan, heat exchange module and backwater pipeline in the cabinet, the water supply pipeline is used for supplying water source to hot water tank, the water pump is used for guiding the water in hot water tank into steam generator, the steam generator is used for heating water and generating water vapor, the steam pipeline is communicated with steam generator, is used for guiding the water vapor generated in steam generator to heat dissipation fan position, the heat exchange module is installed in heat dissipation fan position and is communicated with steam pipeline, backwater pipeline is communicated with heat exchange module and hot water tank respectively, is used for guiding the water condensed in heat exchange module to guide back to hot water tank, the inner wall of cabinet is provided with sound absorbing cotton, still fixedly arranged in the sound insulation cover in the cabinet, the water pump is installed in the sound insulation cover, and a plurality of elastic supporting pieces are arranged between the water pump and the inner wall of the sound insulation cover. The heat exchange module comprises a frame body and a plurality of heat dissipation fin plates fixedly arranged in the frame body, the frame body is fixedly arranged at the air outlet position of the heat dissipation fan, airflow channels are formed between adjacent heat dissipation fin plates, steam flow channels are arranged in each heat dissipation fin plate, the steam pipeline is communicated with the steam flow channels of each heat dissipation fin plate respectively, and the backwater pipeline is also communicated with the steam flow channels of each heat dissipation fin plate respectively.

[0008] Optionally, a steam evaporation box is further fixedly arranged in the frame body, a plurality of air outlets are arranged on the steam evaporation box, a shunt pipe is communicated with the steam pipeline, the shunt pipe is communicated with the steam evaporation box, a stop valve is arranged on the shunt pipe, a humidity sensor is arranged on the cabinet, the humidity sensor is electrically connected with a controller, and the controller is electrically connected with the stop valve.

[0009] Optionally, the steam evaporation box is arranged at a position close to the top of the frame body, the air outlets are arranged at the bottom end of the steam evaporation box, a water collecting tank is arranged in the frame body and close to the bottom, and a drain pipe is communicated with the water collecting tank.

[0010] Optionally, the elastic supporting piece comprises a mounting sleeve fixedly arranged on the inner side wall of the sound insulation cover, a top rod slidingly arranged in the mounting sleeve, and a supporting spring arranged in the mounting sleeve and used for driving the top rod to slide towards the water pump, and the top rod abuts against the side wall of the water pump.

[0011] Optionally, a pure water treatment device is further fixedly arranged in the cabinet, the water supply pipeline is communicated with the pure water treatment device, used for purifying water source, and the pure water treatment device is communicated with the hot water tank through a pipeline.

[0012] Optionally, a drinking water heater is further arranged in the cabinet, the water supply pipeline is communicated with the drinking water heater, and the drinking water heater is communicated with a water outlet pipe.

[0013] Optionally, the water supply pipeline includes an inlet pipe, a three-way valve, a first guide pipe, and a second guide pipe. The inlet pipe is used to connect to an external water source. The three-way valve is connected to the inlet pipe. The first guide pipe and the second guide pipe are respectively connected to the three-way valve. The first guide pipe is connected to a drinking water heater, and the second guide pipe is connected to a pure water treatment device.

[0014] Optionally, a liquid level sensor is installed in the hot water tank, the liquid level sensor is electrically connected to a controller, and the controller is electrically connected to a three-way valve.

[0015] Optionally, it also includes a sound-absorbing housing, which is made of sound-absorbing material and whose interior is adapted to the chassis for covering the chassis.

[0016] In summary, this application includes at least one of the following beneficial technical effects: 1. This application utilizes a closed-loop self-circulating system formed by a water supply pipeline, a hot water tank, a steam generator, steam pipes, a heat exchange module, and a return water pipe. This effectively avoids excessive indoor humidity, improving heating comfort and user experience. After heat exchange, the steam cools and condenses into water, which then flows back to the hot water tank for recirculation and reheating. Since the return water already has some residual heat, reheating is faster and more efficient. Furthermore, the entire closed-loop self-circulating system is integrated within the casing, eliminating the need for an outdoor unit and making it suitable for various indoor environments, thus simplifying installation. In addition, by incorporating sound-absorbing cotton, a soundproof cover, and elastic supports on the inner wall of the casing, the operating noise of vibrating components such as the water pump is effectively isolated and absorbed, keeping the equipment noise below 40 decibels, achieving quiet operation and meeting the needs of quiet environments such as bedrooms and studies.

[0017] 2. This application incorporates a steam evaporation box and a humidity sensor. When the indoor humidity is too low, the controller opens the shut-off valve, allowing some steam to be released directly into the room through the vent, thus achieving intelligent humidification. This avoids the air dryness problem caused by traditional heating equipment and improves the comfort of the indoor environment.

[0018] 3. This application places the steam evaporation box at the top of the frame and the vent at the bottom, allowing the steam to sink naturally and resulting in a more uniform humidification effect; by setting up a water collection tank and a drain pipe, any condensate that may be generated is collected and discharged, preventing water accumulation from damaging the equipment and improving the equipment's durability.

[0019] 4. This application purifies the water entering the hot water tank by setting up a pure water treatment device, removing impurities such as calcium and magnesium ions from the water, effectively preventing scale buildup on components such as steam generators and heat exchange modules, extending the service life of the equipment, and avoiding the problems of reduced heat transfer efficiency and increased energy consumption caused by scale.

[0020] 5. This application forms a double sound insulation structure by setting a sound-absorbing shell, which further isolates the noise of equipment operation. It is especially suitable for environments with extremely high requirements for quietness, such as bedrooms and nurseries. The sound-absorbing shell is detachable, which facilitates equipment maintenance and cleaning, while also improving the appearance of the product. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a process flow diagram of an embodiment of this application; Figure 3 This is a schematic diagram illustrating the internal structure of the chassis, as shown in the embodiments of this application. Figure 4 This is a cross-sectional view of the structure of the soundproof enclosure used in the embodiments of this application; Figure 5 This is a cross-sectional view of the overall structure of an embodiment of this application; Figure 6 This is a cross-sectional view of the heat exchange module used in the embodiments of this application; Figure 7 This is a schematic diagram illustrating the structure of the sound-absorbing shell in an embodiment of this application.

[0022] Explanation of reference numerals in the attached drawings: 100, chassis; 101, hot water tank; 102, water pump; 103, steam generator; 104, steam pipe; 105, cooling fan; 106, return water pipe; 107, drinking water heater; 108, outlet pipe; 109, pure water treatment device; 110, inlet pipe; 111, three-way valve; 112, first guide pipe; 113, second guide pipe; 114, level sensor; 1 15. Diverter pipe; 116. Shut-off valve; 117. Humidity sensor; 200. Heat exchange module; 201. Frame; 202. Heat dissipation fin plate; 203. Airflow channel; 204. Steam flow channel; 205. Steam evaporation box; 206. Vent; 207. Water collection tank; 208. Drain pipe; 300. Sound insulation cover; 301. Mounting sleeve; 302. Top rod; 303. Support spring; 400. Sound-absorbing shell. Detailed Implementation

[0023] The following will be combined with the appendix Figure 1 - Appendix Figure 7 The technical solutions in the embodiments of the present invention are clearly and completely described herein. The described embodiments are only possible technical implementations of the present invention and not all possible implementations. Those skilled in the art can obtain other embodiments in conjunction with the embodiments of the present invention without creative effort, and these embodiments are also within the protection scope of the present invention.

[0024] This application utilizes a closed-loop self-circulation system integrated within the chassis, effectively preventing excessive indoor humidity. It also boasts high heating efficiency and easy installation. Multiple noise reduction designs ensure quiet operation, meeting the needs of quiet environments such as bedrooms and studies. The following is a further detailed description of this application: This application discloses a low-noise self-circulating steam air conditioning device. (Refer to...) Figure 1 and Figure 2 The system includes a chassis 100 and integrated within the chassis 100 a water supply pipeline, a hot water tank 101, a water pump 102, a steam generator 103, a steam pipe 104, a cooling fan 105, a heat exchange module 200, and a return water pipeline 106. The water supply pipeline is connected to the hot water tank 101 to supply water to the tank. The water pump 102 is installed between the hot water tank 101 and the steam generator 103 to guide water from the hot water tank 101 into the steam generator 103. The steam generator 103 is connected to the steam pipe 104 to heat the water and generate steam, while the steam pipe 104 then circulates the steam... The water vapor generated in the generator 103 is guided to the position of the cooling fan 105; the heat exchange module 200 is installed at the position of the cooling fan 105 and connected to the steam pipe 104, which allows the water vapor to exchange heat; the return water pipe 106 is connected to the heat exchange module 200 and the hot water supply tank 101 respectively, and is used to guide the water condensed in the heat exchange module 200 back to the hot water supply tank 101, forming a closed self-circulation system. This can effectively avoid the problem of excessive indoor humidity, improve heating comfort and user experience, and the water that cools down and condenses after steam heat exchange has a certain residual temperature, which makes reheating faster and heating efficiency higher.

[0025] Reference Figure 2 and Figure 3 The housing 100 also houses a drinking water heater 107, with a water supply pipe connected to it, and the heater 107 connected to a water outlet pipe 108. The drinking water heater 107 can employ rapid heating technology, such as an instant heating element, to heat water to a suitable drinking temperature in a short time, allowing users to conveniently obtain hot water at any time. This achieves multiple uses in one unit, improving the equipment's practicality and cost-effectiveness.

[0026] Reference Figure 2 and Figure 3The casing 100 also houses a pure water treatment device 109, connected to a water supply pipeline for purifying the water source. The pure water treatment device 109 can employ reverse osmosis membrane filtration or ion exchange resin technology to effectively remove impurities such as calcium and magnesium ions from the water. The pure water treatment device 109 is connected to a hot water supply tank 101 via a pipeline, delivering purified water to the tank. This effectively prevents scaling on components such as the steam generator 103 and heat exchange module 200, extending the equipment's lifespan and avoiding decreased heat transfer efficiency and increased energy consumption due to scale buildup.

[0027] Reference Figure 2 Specifically, the water supply pipeline includes an inlet pipe 110, a three-way valve 111, a first guide pipe 112, and a second guide pipe 113. The inlet pipe 110 is typically made of corrosion-resistant plastic or metal, such as PVC or stainless steel, and is used to connect to an external water source. The three-way valve 111 is connected to the inlet pipe 110 and can be electrically operated, allowing for flexible switching of water flow direction based on control signals. The first guide pipe 112 and the second guide pipe 113 are respectively connected to the three-way valve 111. The first guide pipe 112 is connected to the drinking water heater 107, and the second guide pipe 113 is connected to the pure water treatment device 109. This design, through the three-way valve 111 and the first and second guide pipes 112 and 113, achieves intelligent water diversion between the drinking water heater 107 and the hot water tank 101, ensuring that the two functional modules do not interfere with each other, while also simplifying the pipeline structure and reducing manufacturing costs.

[0028] Reference Figure 2 Specifically, the hot water tank 101 is generally made of stainless steel or plastic, which has good corrosion resistance and heat insulation performance. A liquid level sensor 114 is installed inside the hot water tank 101. The liquid level sensor 114 is electrically connected to the controller via a circuit, and the controller is in turn electrically connected to the three-way valve 111. The liquid level sensor 114 can monitor the water level in the hot water tank 101 in real time. When the water level is lower than the set value, the controller will control the three-way valve 111 to switch the water path and automatically replenish water to the hot water tank 101, realizing intelligent water level control, avoiding equipment damage due to water shortage, and improving the safety and reliability of the equipment.

[0029] Reference Figure 3 and Figure 4 Specifically, the inner wall of the chassis 100 is lined with sound-absorbing cotton (not shown in the figure). A soundproof cover 300 is also fixedly installed inside the chassis 100. The water pump 102 is installed inside the soundproof cover 300, and several elastic support members are provided between the water pump 102 and the inner wall of the soundproof cover 300. These designs can effectively isolate and absorb the operating noise of vibrating components such as the water pump 102, and control the operating noise of the equipment to a low level.

[0030] ReferenceFigure 4 The elastic support includes a mounting sleeve 301 fixedly mounted on the inner wall of the soundproof enclosure 300, a push rod 302 slidably passing through the mounting sleeve 301, and a support spring 303 disposed within the mounting sleeve 301 to drive the push rod 302 to slide towards the water pump 102. The mounting sleeve 301 is typically made of metal to ensure its structural strength. The push rod 302 can be a solid cylindrical rod, with one end sliding within the mounting sleeve 301 and the other end abutting against the side wall of the water pump 102. The support spring 303 provides elastic support to the push rod 302, achieving multi-point elastic support for the water pump 102, effectively absorbing and buffering vibrations during the operation of the water pump 102, further reducing noise transmission, while avoiding resonance problems caused by rigid connections, and extending the service life of the water pump 102.

[0031] Reference Figure 2 and Figure 5 The steam generator 103 can be electrically heated, using electricity to heat water and generate high-temperature steam at 110℃-150℃. The steam generator 103 is connected to a steam pipe 104, which is typically made of a material with good insulation properties, such as polyurethane insulation, to reduce heat loss during steam transmission. The steam pipe 104 delivers steam to the heat exchange module 200 located at the cooling fan 105. The cooling fan 105 accelerates airflow and improves heat exchange efficiency.

[0032] Reference Figure 5 and Figure 6The heat exchange module 200 includes a frame 201 fixedly disposed within the chassis 100, and multiple heat dissipation fins 202 fixedly disposed within the frame 201. Each heat dissipation fin 202 is vertically arranged, and airflow channels 203 are formed between adjacent heat dissipation fins 202. The frame 201 is fixedly disposed at the air outlet of the cooling fan 105 and is typically made of thin metal sheet, possessing a certain degree of strength and stability. The heat dissipation fins 202 are generally made of brass, which has good heat dissipation performance. Each heat dissipation fin 202 is provided with a steam flow channel 204, which is arranged in an "S" shape. Steam pipes 104 are connected to the steam flow channels 204 of each heat dissipation fin 202, with the connecting ends of the steam pipes 104 and steam flow channels 204 located near the top of the heat dissipation fin 202. Return water pipes 106 are also connected to the steam flow channels 204 of each heat dissipation fin 202, with the connecting ends of the return water pipes 106 and steam flow channels 204 located near the bottom of the heat dissipation fin 202. By setting multiple heat dissipation fins 202 and providing steam flow channels 204 within the fins, the heat exchange area is significantly increased, improving the heat exchange efficiency between steam and air, resulting in faster and more uniform heating. The design of the airflow channel 203 optimizes the airflow path, reduces wind resistance, and lowers the power consumption of the cooling fan 105, achieving energy-saving operation. Under normal circumstances, steam cools down and condenses into water after heat exchange. The water temperature is about 30℃-50℃. It flows back to the hot water supply tank 101 through the return water pipe 106 for recirculation and heating. Since the return water already has a base temperature of 30-50℃, the reheating efficiency is higher.

[0033] Reference Figure 2 and Figure 6 A steam evaporation box 205 is fixedly installed inside the frame 201 and near the top of the frame 201. Several air outlets 206 are provided at the bottom of the steam evaporation box 205. These air outlets 206 are evenly distributed within the airflow channels 203 between adjacent heat dissipation fins 202. A steam pipe 104 is connected to a diversion pipe 115, which is connected to the steam evaporation box 205. A shut-off valve 116 is installed on the diversion pipe 115. A humidity sensor 117 is installed on the chassis 100. The humidity sensor 117 is electrically connected to the controller, and the controller is electrically connected to the shut-off valve 116. When the indoor humidity is too low, the humidity sensor 117 transmits a signal to the controller, which then controls the shut-off valve 116 to open, allowing some steam to be released directly into the room through the air outlets 206. This achieves intelligent humidification, avoiding the air dryness problem caused by traditional heating equipment and improving the comfort of the indoor environment.

[0034] Reference Figure 2 and Figure 6A water collection tank 207 is provided inside the frame 201 and near the bottom. The water collection tank 207 is connected to a drain pipe 208. The water collection tank 207 can collect any condensate that may be generated and discharge it through the drain pipe 208, preventing water accumulation from damaging the equipment and improving the durability of the equipment.

[0035] Reference Figure 7 In addition, the device includes a sound-absorbing housing 400, which is made of sound-absorbing material, such as sound-absorbing cotton board or sound-absorbing foam board. The interior of the sound-absorbing housing 400 is adapted to the chassis 100 and is used to cover the chassis 100 to form a double sound insulation structure, further isolating the equipment operating noise. It is particularly suitable for environments with extremely high requirements for quietness, such as bedrooms and nurseries. The sound-absorbing housing 400 is detachable, which facilitates equipment maintenance and cleaning, while also improving the product's aesthetic appearance.

[0036] The implementation principle of the low-noise self-circulating steam air conditioning device in this application embodiment is as follows: a closed-loop self-circulating system is formed through the water supply pipeline, hot water tank 101, steam generator 103, steam pipe 104, heat exchange module 200, and return water pipe 106, effectively avoiding the problem of excessive indoor humidity and improving heating comfort and user experience. Furthermore, the steam cools and condenses into water after heat exchange, and flows back to the hot water tank 101 through the return water pipe 106 for recirculation and heating. Since the return water already has a certain residual temperature, the reheating efficiency is faster and the heating efficiency is high. Moreover, the entire closed-loop self-circulating system is integrated inside the casing 100, eliminating the need for an outdoor unit, making it suitable for various indoor environments and simplifying installation. In addition, by setting sound-absorbing cotton, a sound insulation cover 300, and elastic support components on the inner wall of the casing 100, the operating noise of vibrating components such as the water pump 102 is effectively isolated and absorbed, controlling the equipment operating noise below 40 decibels, achieving quiet operation, and meeting the usage requirements of quiet environments such as bedrooms and studies. The pure water treatment unit 109 prevents scale buildup and extends the equipment's lifespan. The drinking water heater 107 offers multiple functions, improving the equipment's practicality. The intelligent humidification function of the steam evaporation box 205 enhances indoor environmental comfort. The sound-absorbing housing 400 further strengthens sound insulation. Overall, these components represent a significant improvement and contribution to existing technology, meeting the demand for air conditioning units that are easy to install, have high heating efficiency, and operate with low noise.

[0037] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A low-noise self-circulating steam air conditioning device, characterized in that: Includes a chassis (100) and integrated within the chassis (100) a water supply pipeline, a hot water tank (101), a water pump (102), a steam generator (103), a steam pipe (104), a cooling fan (105), a heat exchange module (200), and a return water pipe (106); The water supply pipeline is used to supply water to the hot water tank (101); The water pump (102) is used to introduce water from the hot water tank (101) into the steam generator (103); The steam generator (103) is used to heat water and generate steam; The steam pipe (104) is connected to the steam generator (103) and is used to guide the water vapor generated in the steam generator (103) to the position of the cooling fan (105); The heat exchange module (200) is installed at the location of the cooling fan (105) and is connected to the steam pipe (104); The return water pipe (106) is connected to the heat exchange module (200) and the hot water supply tank (101) respectively, and is used to guide the water condensed in the heat exchange module (200) back to the hot water supply tank (101); The inner wall of the chassis (100) is provided with sound-absorbing cotton; A soundproof cover (300) is also fixedly installed inside the chassis (100), the water pump (102) is installed inside the soundproof cover (300), and a number of elastic support members are provided between the water pump (102) and the inner wall of the soundproof cover (300); The heat exchange module (200) includes a frame (201) and a plurality of heat dissipation fins (202) fixedly disposed within the frame (201). The frame (201) is fixedly disposed at the air outlet of the cooling fan (105). An airflow channel (203) is formed between adjacent heat dissipation fins (202). Each heat dissipation fin (202) is provided with a steam flow channel (204). The steam pipe (104) is connected to the steam flow channel (204) of each heat dissipation fin (202). The return water pipe (106) is also connected to the steam flow channel (204) of each heat dissipation fin (202).

2. The low-noise self-circulating steam air conditioning device according to claim 1, characterized in that: A steam evaporation box (205) is also fixedly installed inside the frame (201). The steam evaporation box (205) is provided with several air outlets (206). The steam pipe (104) is connected to a diversion pipe (115). The diversion pipe (115) is connected to the steam evaporation box (205). A shut-off valve (116) is provided on the diversion pipe (115). A humidity sensor (117) is provided on the chassis (100). The humidity sensor (117) is electrically connected to a controller. The controller is electrically connected to the shut-off valve (116).

3. The low-noise self-circulating steam air conditioning device according to claim 2, characterized in that: The steam evaporation box (205) is located near the top of the frame (201), and the vent (206) is located at the bottom of the steam evaporation box (205). A water collection tank (207) is provided inside the frame (201) near the bottom, and the water collection tank (207) is connected to a drain pipe (208).

4. A low-noise self-circulating steam air conditioning device according to claim 1, characterized in that: The elastic support includes a mounting sleeve (301) fixedly mounted on the inner side wall of the soundproof cover (300), a top rod (302) slidably passing through the mounting sleeve (301), and a support spring (303) mounted in the mounting sleeve (301) for driving the top rod (302) to slide towards the water pump (102). The top rod (302) abuts against the side wall of the water pump (102).

5. A low-noise self-circulating steam air conditioning device according to claim 1, characterized in that: A pure water treatment device (109) is also fixedly installed inside the chassis (100). The water supply pipeline is connected to the pure water treatment device (109) for purifying the water source. The pure water treatment device (109) is also connected to the hot water tank (101) through a pipeline.

6. A low-noise self-circulating steam air conditioning device according to claim 5, characterized in that: The chassis (100) is also equipped with a drinking water heater (107), the water supply pipeline is connected to the drinking water heater (107), and the drinking water heater (107) is connected to a water outlet pipe (108).

7. A low-noise self-circulating steam air conditioning device according to claim 6, characterized in that: The water supply pipeline includes an inlet pipe (110), a three-way valve (111), a first guide pipe (112), and a second guide pipe (113). The inlet pipe (110) is used to connect to an external water source. The three-way valve (111) is connected to the inlet pipe (110). The first guide pipe (112) and the second guide pipe (113) are respectively connected to the three-way valve (111). The first guide pipe (112) is connected to a drinking water heater (107), and the second guide pipe (113) is connected to a pure water treatment device (109).

8. A low-noise self-circulating steam air conditioning device according to claim 7, characterized in that: The hot water tank (101) is equipped with a liquid level sensor (114), which is electrically connected to the controller, and the controller is electrically connected to the three-way valve (111).

9. A low-noise self-circulating steam air conditioning device according to claim 1, characterized in that: It also includes a sound-absorbing housing (400) made of sound-absorbing material, and the interior of the sound-absorbing housing (400) is adapted to the chassis (100) for covering the chassis (100).

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