Central air conditioner with double-layer air guide structure

Abstract

The application discloses a central air conditioner with a double-layer air guide structure at an air outlet, which comprises a central air conditioner body, an air guide mechanism installed at the bottom end of the central air conditioner body, a plurality of air guide wetting devices installed at the inner end of the air guide mechanism and a plurality of water supply mechanisms installed at the top end of the central air conditioner body, the bottom end of the central air conditioner body is provided with a plurality of main air outlet grooves, the air guide mechanism comprises an air guide sleeve plate, the air guide wetting device comprises a guide pipe, the outer side of both ends of the guide pipe is connected with a plurality of U-shaped pipes, and the outer side of the U-shaped pipe is provided with a plurality of water spraying grooves. The central air conditioner blows air outward from the main air outlet groove, the air conditioner wind reaches the inner end of the air guide sleeve plate through the auxiliary air outlet groove, the guide pipe and the air guide sleeve plate rotate during the flowing process of the air conditioner at the inner end of the air guide sleeve plate, centrifugal force is generated during the rotating process, water at the inner end of the guide pipe is sprayed outward through the water spraying groove, the passing air conditioner wind is subjected to wetting treatment, and the discharged air conditioner wind is more suitable for use of users.

Description

Technical Field

[0001] This invention relates to a central air conditioning system, and more specifically, to a central air conditioning system with a double-layer air guide structure at the air outlet. Background Technology

[0002] A central air conditioning system consists of one or more cold and heat source systems and multiple air conditioning systems. Unlike traditional refrigerant-based air conditioners, this system centrally processes air to achieve comfort requirements. It uses the principle of liquid vaporization refrigeration to provide the required cooling capacity to offset the heat load of the indoor environment. The heating system provides the required heat to offset the heating and cooling loads of the indoor environment. The refrigeration system is a crucial part of the central air conditioning system, and its type, operation mode, and structural form directly affect the economy, efficiency, and rationality of the central air conditioning system during operation.

[0003] As we all know, central air conditioning systems exhaust hot or cold air through bottom air vents to keep the indoor temperature constant. However, during the process of delivering cold or hot air, the air conditioning system dehumidifies the air, resulting in dry air that can cause discomfort for users and affect the normal operation of the central air conditioning system. Summary of the Invention

[0004] The purpose of this invention is to provide a central air conditioner with a double-layer air guide structure at the air outlet, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, a central air conditioning system with a double-layer air guide structure at the air outlet is provided. The system includes a central air conditioning body, an air guide mechanism installed at the bottom of the central air conditioning body, a plurality of air guide humidification devices installed inside the air guide mechanism, and a plurality of water supply mechanisms installed at the top of the central air conditioning body. The bottom of the central air conditioning body is provided with a plurality of main air outlet slots. The air guide mechanism includes a plurality of air guide sleeves, each with an L-shaped structure. A secondary air outlet slot is provided inside each air guide sleeve, and the cross-sectional dimensions of the secondary air outlet slot match those of the main air outlet slots. The top of each air guide sleeve is aligned with the bottom of the main air outlet slot. The air guide humidification device includes at least:

[0006] The duct is disposed inside the secondary air outlet slot and is rotatably connected to the inner end of the secondary air outlet slot. Both ends of the duct extend out of the outer ends of the air guide sleeve.

[0007] The U-shaped tube is provided in several pairs, with two U-shaped tubes respectively located at the outer ends of the two sides of the conduit. The U-shaped tube is connected to the inner end of the conduit. Several water spray grooves are provided at both the upper and lower ends of the U-shaped tube, and the water spray grooves are connected to the inner end of the U-shaped tube.

[0008] The water supply mechanism includes a water pump, which is located at the top corner of the central air conditioning unit. A water supply pipe is connected to the side of the water pump. The water supply pipe has a U-shaped structure and a V-shaped pipe is connected to the end of the water supply pipe. The two ends of the V-shaped pipe are rotatably connected to the ends of the two conduits, and the V-shaped pipe is in communication with the inner end of the conduits.

[0009] As a further improvement to this technical solution, clamping plates are provided on both sides of the bottom end of the main air outlet duct. The clamping plates are fixed at the bottom end of the central air conditioning body. Slider blocks are provided on both sides of the top end of the air guide sleeve. The sliders are slidably connected to the clamping plates. The clamping plates have an L-shaped structure, which facilitates the suspension of the air guide sleeve.

[0010] As a further improvement to this technical solution, a side frame is provided on the outer side of the bottom end of the central air conditioning body. The side frame includes several connectors. The connectors are sleeved and fitted with the outer end of the water supply pipe. A connecting plate is connected between two connectors. The top of the connecting plate is fixedly connected to the bottom end of the central air conditioning body.

[0011] As a further improvement to this technical solution, an air volume control plate is provided at the end of the secondary air outlet duct. The cross-sectional dimensions of the air volume control plate are consistent with the cross-sectional dimensions of the secondary air outlet duct, and the two sides of the air volume control plate are rotatably connected to the two sides of the inner end of the secondary air outlet duct, respectively.

[0012] As a further improvement to this technical solution, a connecting rod is connected between the two sides of the air guide sleeve, and the outer side of the connecting rod is fitted and installed in close contact with the top of the inner side of the connector.

[0013] As a further improvement to this technical solution, several sponge plates are provided on both the upper and lower sides of the conduit, and two sponge plates are respectively attached to the upper and lower sides of the U-shaped tube.

[0014] As a further improvement to this technical solution, each of the sponge patches is connected by a pair of fixing rods, and the two fixing rods are respectively located at the two side edges of the sponge patches.

[0015] As a further improvement to this technical solution, both ends of the V-shaped tube are fitted with square tube sleeves, and one end of the square tube sleeve is fixed to the outside of the air guide plate.

[0016] As a further improvement to this technical solution, the inner end of the square tube sleeve is connected to a plurality of high-temperature plates, each of which is located on a different side of the inner end of the square tube sleeve.

[0017] As a further improvement to this technical solution, the top of the water pump is provided with a water pump sleeve, the inner end of the water pump sleeve is matched with the dimensions, and the outer end of the water pump sleeve is provided with several ventilation holes.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. In a central air conditioning system with a double-layer air guide structure, the air conditioner blows air outward from the main air duct. The air conditioner air passes through the secondary air outlet duct and reaches the inner end of the air guide sleeve. During the air flow in the inner end of the air guide sleeve, the air conditioner blows the duct and the air guide sleeve to rotate. During the rotation, centrifugal force is generated, which sprays water from the inner end of the duct outward through the water spray trough to humidify the air conditioner air that passes through, making the exhaust air conditioner air more suitable for users.

[0020] 2. In a central air conditioning system with a double-layer air guide structure, the air outlet is equipped with a slider and a clamping plate to allow for free installation and removal between the clamping plate and the bottom of the central air conditioning body. This allows for periodic disassembly of the air guide sleeve. On the one hand, the inner end of the air guide sleeve can be cleaned to prevent blockage. On the other hand, water droplets often adhere to the inner wall of the air guide sleeve, which can easily lead to rust on the inner end of the air guide sleeve over time, affecting its normal use. In this case, the air guide sleeve needs to be replaced to ensure normal air guidance.

[0021] 3. In the central air conditioning system with a double-layer air guide structure, the outer end of the water supply pipe is protected by the side bracket, and the connector clamps the outer end of the water supply pipe to share the pressure caused by the water flow and improve the stability of the water supply pipe.

[0022] 4. In a central air conditioning system with a double-layer air guide structure, the connection stability between the air guide plates is improved by the connecting support rods, ensuring that the position of the air guide plates remains constant during the air guiding process, and avoiding positional deviation that affects the exhaust direction. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0024] Figure 2 This is an exploded view of the overall structure of Embodiment 1 of the present invention;

[0025] Figure 3 This is a schematic diagram of the central air conditioning unit structure according to Embodiment 1 of the present invention;

[0026] Figure 4 As in Embodiment 1 of the present invention Figure 3 A magnified view of part A;

[0027] Figure 5 This is a schematic diagram of the side frame structure of Embodiment 1 of the present invention;

[0028] Figure 6 This is an exploded view of the air guide mechanism structure according to Embodiment 1 of the present invention;

[0029] Figure 7 This is an exploded view of the air-guiding and humidifying device according to Embodiment 1 of the present invention;

[0030] Figure 8 As in Embodiment 1 of the present invention Figure 7 A magnified view of section B;

[0031] Figure 9 This is an exploded view of the water supply mechanism structure according to Embodiment 1 of the present invention;

[0032] Figure 10 As in Embodiment 1 of the present invention Figure 9 A magnified view of a portion of point C.

[0033] The meanings of the labels in the diagram are as follows:

[0034] 10. Central air conditioning unit; 110. Main air outlet duct; 120. Clamping plate; 130. Side bracket; 131. Connector; 132. Connecting plate;

[0035] 20. Air guide mechanism; 210. Air guide sleeve; 211. Secondary air outlet duct; 212. Slider; 220. Air volume control plate; 230. Connecting support rod;

[0036] 30. Air humidification device; 310. Duct; 320. U-shaped pipe; 321. Water spray trough; 330. Sponge panel; 331. Fixing rod;

[0037] 40. Water supply mechanism; 410. Water pump; 420. Water supply pipe; 430. V-shaped pipe; 440. Square pipe sleeve; 441. High temperature plate; 450. Water pump sleeve. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0041] Example 1

[0042] Please see Figures 1-10 As shown, this embodiment of a central air conditioning system with a double-layer air guide structure at the air outlet includes a central air conditioning body 10, an air guide mechanism 20 installed at the bottom of the central air conditioning body 10, a plurality of air guide humidification devices 30 installed at the inner end of the air guide mechanism 20, and a plurality of water supply mechanisms 40 installed at the top of the central air conditioning body 10. The bottom of the central air conditioning body 10 is provided with a plurality of main air outlet slots 110. The air guide mechanism 20 includes a plurality of air guide sleeves 210, each with an L-shaped structure. A secondary air outlet slot 211 is provided at the inner end of each air guide sleeve 210. The cross-sectional dimensions of the secondary air outlet slot 211 match the cross-sectional dimensions of the main air outlet slots 110. The top end of the air guide sleeve 210 is aligned with the bottom end of the main air outlet slot 110. The air guide humidification device 30 includes at least:

[0043] The duct 310 is located inside the secondary air outlet slot 211. The duct 310 is rotatably connected to the inner end of the secondary air outlet slot 211. Both ends of the duct 310 extend out of the outer ends of the air guide sleeve 210.

[0044] U-shaped tube 320, several pairs of U-shaped tubes 320 are provided, two U-shaped tubes 320 are respectively provided at the outer ends of the two sides of the conduit 310, the U-shaped tube 320 is connected to the inner end of the conduit 310, and several water spray grooves 321 are provided at both the upper and lower ends of the U-shaped tube 320, the water spray grooves 321 are connected to the inner end of the U-shaped tube 320.

[0045] The water supply mechanism 40 includes a water pump 410, which is located at the top corner of the central air conditioning body 10. A water supply pipe 420 is connected to the side of the water pump 410. The water supply pipe 420 has a U-shaped structure, which facilitates its extension around the outer end of the central air conditioning body 10 to the bottom end of the central air conditioning body 10. A V-shaped pipe 430 is connected to the end of the water supply pipe 420. The two ends of the V-shaped pipe 430 are rotatably connected to the ends of the two conduits 310, and the V-shaped pipe 430 is in communication with the inner end of the conduits 310.

[0046] In practical use, during the exhaust process of the central air conditioning unit 10 through the main air outlet ducts 110 at the bottom, the air conditioning air first flows into the inner end of each auxiliary air outlet duct 211 through the main air outlet ducts 110. When the air conditioning air flows in the inner end of the auxiliary air outlet ducts 211, due to the wind force, when the air conditioning air comes into contact with the duct 310, the wind force will drive the duct 310 and the inner end of the auxiliary air outlet duct 211 to rotate. The water pump 410 delivers water to the inner end of the water supply pipe 420. The water flows through the water supply pipe 420. Water flows into the inner end of the V-shaped pipe 430 and is transported to the inner end of each conduit 310 through the V-shaped pipe 430. Water is then transported to each U-shaped pipe 320 through the conduit 310. At this time, the conduit 310 rotates under the action of wind power. During the rotation, centrifugal force is generated. The centrifugal force will spray the water flow from the inner end of the U-shaped pipe 320 outward through the water spray trough 321. The sprayed water droplets will mix with the air conditioning air, making the air conditioning air discharged from the outer end of the central air conditioning body 10 humid and improving user comfort.

[0047] In addition, clamping plates 120 are provided on both sides of the bottom end of the main air outlet duct 110. The clamping plates 120 are fixed at the bottom end of the central air conditioning body 10. Slider blocks 212 are provided on both sides of the top end of the air guide sleeve 210. The sliders 212 are slidably connected to the clamping plates 120. The clamping plates 120 have an L-shaped structure, which facilitates the suspension of the air guide sleeve 210. In practical use, after long-term use, the air guide sleeve 210 needs to be properly inspected or its parts replaced to ensure its normal air guiding function. The slider 212 and the clamping plate 120 enable the clamping plate 120 to be freely installed and removed from the bottom of the central air conditioning body 10, so that the air guide sleeve 210 can be disassembled regularly. On the one hand, the inner end of the air guide sleeve 210 can be cleaned to prevent blockage. On the other hand, water droplets often adhere to the inner wall of the air guide sleeve 210, which can easily lead to rust on the inner end of the air guide sleeve 210 over time, affecting its normal use. In this case, the air guide sleeve 210 needs to be replaced to ensure its normal air guiding function.

[0048] Furthermore, a side bracket 130 is provided on the outer side of the bottom end of the central air conditioning unit 10. The side bracket 130 includes several connectors 131, which are sleeved with the outer end of the water supply pipe 420. A connecting plate 132 is connected between two connectors 131, and the top of the connecting plate 132 is fixedly connected to the bottom end of the central air conditioning unit 10. In actual use, since the water supply pipe 420 is exposed during use and the bottom end is connected to a V-shaped pipe 430, when water flows into the inner end of the water supply pipe 420, the weight increases instantly, causing the water supply pipe 420 to bear increased pressure, which can easily lead to the water supply pipe 420 breaking. At this time, the side bracket 130 is used to protect the outer end of the water supply pipe 420, and the connectors 131 clamp the outer end of the water supply pipe 420 to distribute the pressure caused by the water flow and improve the stability of the water supply pipe 420.

[0049] Furthermore, an airflow control plate 220 is installed at the end of the secondary air outlet slot 211. The cross-sectional dimensions of the airflow control plate 220 match those of the secondary air outlet slot 211, and both sides of the airflow control plate 220 are rotatably connected to the inner ends of the secondary air outlet slot 211. The airflow control plate 220 enables free adjustment of the exhaust volume at the inner end of the secondary air outlet slot 211, and also allows for adjustment of the airflow direction. In practical use, when the airflow control plate 220 is perpendicular to the inner end of the secondary air outlet slot 211, the two sides of the airflow control plate 220 are in contact with the inner wall of the secondary air outlet slot 211, keeping the inner end of the secondary air outlet slot 211 sealed, preventing the air conditioning air from being discharged outwards. Rotating the airflow control plate 220 at this time gradually increases the gap between the airflow control plate 220 and the secondary air outlet slot 211, increasing the exhaust volume and changing the airflow direction, thus improving the overall ventilation flexibility of the device.

[0050] Specifically, a connecting rod 230 is connected between the sides of the two air guide sleeves 210, and the outer side of the connecting rod 230 is fitted to the top inner side of the connector 131. In actual use, the connecting rod 230 improves the connection stability between the air guide sleeves 210, ensuring that the position of the air guide sleeves 210 remains constant during air guiding, and preventing positional deviation from affecting the exhaust direction.

[0051] In addition, several sponge plates 330 are provided on both the upper and lower sides of the duct 310, with two sponge plates 330 respectively attached to the upper and lower sides of the U-shaped pipe 320. During the process of spraying water outward through the water spray trough 321, the water flow rate increases with the increase of the air conditioning fan force. When the air conditioning fan force is too strong, the water volume sprayed from the water spray trough 321 increases. At this time, the water flow cannot be completely carried out of the central air conditioning unit 10 by the air conditioning fan, and the remaining water will drip outward along the inner end of the secondary air outlet trough 211, causing water leakage in the central air conditioning unit 10. The sponge plates 330 absorb the water flow sprayed from the inner end of the water spray trough 321. During rotation, the water is then flung outward through the sponge plates 330, and the remaining water flow is absorbed by the sponge plates 330.

[0052] Furthermore, each sponge plate 330 is connected by a pair of fixing rods 331, which are respectively located on both sides of the sponge plate 330. In actual use, the fixing rods 331 improve the linkage between the sponge plates 330, so that each sponge plate 330 maintains the same direction and speed during rotation, thereby making the discharged air conditioning air evenly mixed with the water flow.

[0053] Furthermore, square sleeves 440 are fitted onto both outer ends of the V-shaped pipe 430, with one end of the square sleeve 440 fixed to the outside of the air guide plate 210. Because the V-shaped pipe 430 is constantly exposed, during water transport, the interior of the V-shaped pipe 430 will bear a large volume of water, easily causing uneven stress on the inner end of the V-shaped pipe 430, leading to gaps between the V-shaped pipe 430 and the end of the conduit 310, resulting in water leakage. The square sleeves 440 improve the stability of the V-shaped pipe 430, ensuring it maintains a constant position during water transport, allowing water to flow smoothly into the inner end of the conduit 310.

[0054] In addition, several high-temperature plates 441 are inserted and installed inside the square tube sleeve 440, with each high-temperature plate 441 located on a different side of the inner end of the square tube sleeve 440. In actual use, due to different temperatures in different seasons, when the central air conditioning unit 10 is used in winter, the temperature of the water flowing through the water supply pipe 420 and conduit 310 will decrease when the air conditioning air is humidified. At this time, the temperature of the air conditioning air discharged is relatively high. When it encounters the low-temperature water flow sprayed by the water spray tank 321, the temperature will drop, and it will not be able to perform normal heat preservation function. At this time, the high-temperature plates 441 are used to preheat the water flowing through the inner end of the square tube sleeve 440, so that the water temperature can adapt to the air conditioning air temperature and reduce the impact of the humidifying water on the air conditioning air temperature.

[0055] In addition, the top of the water pump 410 is provided with a water pump sleeve 450, the inner dimension of which matches the dimension of the 410, and the outer end of the water pump sleeve 450 is provided with several ventilation holes. In actual use, the water pump sleeve 450 is used to reduce the noise of the water pump 410, so as to avoid the excessive noise generated by the water pump 410 during operation, which would affect the normal use by the user.

[0056] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A central air conditioning system with a double-layer air guide structure at the air outlet, comprising a central air conditioning body (10), an air guide mechanism (20) installed at the bottom of the central air conditioning body (10), a plurality of air guide humidification devices (30) installed at the inner end of the air guide mechanism (20), and a plurality of water supply mechanisms (40) installed at the top of the central air conditioning body (10), characterized in that: The central air conditioning body (10) has several main air outlet slots (110) at its bottom end. The air guiding mechanism (20) includes several air guiding sleeves (210). The air guiding sleeves (210) have an L-shaped structure. The inner end of the air guiding sleeves (210) is provided with a secondary air outlet slot (211). The cross-sectional dimensions of the secondary air outlet slots (211) are consistent with the cross-sectional dimensions of the main air outlet slots (110). The top end of the air guiding sleeves (210) is aligned with the bottom end of the main air outlet slots (110). The air guiding humidification device (30) includes at least: The conduit (310) is disposed at the inner end of the secondary air outlet groove (211). The conduit (310) is rotatably connected to the inner end of the secondary air outlet groove (211). Both ends of the conduit (310) extend out of the outer ends of the air guide sleeve (210). U-shaped tubes (320), wherein several pairs of U-shaped tubes (320) are provided, and two pairs of U-shaped tubes (320) are respectively provided at the outer ends of the two sides of the conduit (310). The U-shaped tubes (320) are kept in communication with the inner end of the conduit (310). Several water spray grooves (321) are provided at both the upper and lower ends of the U-shaped tubes (320). The water spray grooves (321) are kept in communication with the inner end of the U-shaped tubes (320). The water supply mechanism (40) includes a water pump (410), which is located at the top corner of the central air conditioning body (10). A water supply pipe (420) is connected to the side of the water pump (410). The water supply pipe (420) has a U-shaped structure. A V-shaped pipe (430) is connected to the end of the water supply pipe (420). The two ends of the V-shaped pipe (430) are rotatably connected to the ends of the two conduits (310), and the V-shaped pipe (430) is in communication with the inner end of the conduit (310).

2. The central air conditioning system with a double-layer air guide structure at the air outlet according to claim 1, characterized in that: The main air outlet duct (110) is provided with clamping plates (120) on both sides of the bottom end. The clamping plates (120) are fixed at the bottom end of the central air conditioning body (10). The air guide sleeve (210) is provided with sliders (212) on both sides of the top end. The sliders (212) are slidably connected to the clamping plates (120). The clamping plates (120) have an L-shaped structure, which facilitates the suspension of the air guide sleeve (210).

3. The central air conditioning system with a double-layer air guide structure at the air outlet according to claim 2, characterized in that: A side frame (130) is provided on the outer side of the bottom end of the central air conditioning body (10). The side frame (130) includes several connectors (131). The connectors (131) are sleeved and fitted with the outer end of the water supply pipe (420). A connecting plate (132) is connected between two connectors (131). The top end of the connecting plate (132) is fixedly connected to the bottom end of the central air conditioning body (10).

4. The central air conditioning system with a double-layer air guide structure at the air outlet according to claim 1, characterized in that: An air volume control plate (220) is provided at the end of the secondary air outlet slot (211). The cross-sectional dimensions of the air volume control plate (220) are consistent with the cross-sectional dimensions of the secondary air outlet slot (211). The two sides of the air volume control plate (220) are rotatably connected to the two sides of the inner end of the secondary air outlet slot (211).

5. The central air conditioning system with a double-layer air guide structure at the air outlet according to claim 3, characterized in that: A connecting rod (230) is connected between the two sides of the air guide sleeve (210), and the outer side of the connecting rod (230) is fitted and installed with the top of the inner side of the connector (131).

6. The central air conditioning system with a double-layer air guide structure at the air outlet according to claim 1, characterized in that: Several sponge plates (330) are provided on both the upper and lower sides of the conduit (310), and two sponge plates (330) are respectively attached to the upper and lower sides of the U-shaped tube (320).

7. The central air conditioning system with a double-layer air guide structure at the air outlet according to claim 6, characterized in that: Each of the sponge plates (330) is connected by a pair of fixing rods (331), and the two fixing rods (331) are respectively located at the two side edges of the sponge plates (330).

8. The central air conditioning system with a double-layer air guide structure at the air outlet according to claim 1, characterized in that: Both ends of the V-shaped tube (430) are fitted with square tube sleeves (440), and one end of the square tube sleeve (440) is fixed to the outside of the air guide plate (210).

9. The central air conditioning system with a double-layer air guide structure at the air outlet according to claim 8, characterized in that: The inner end of the square tube sleeve (440) is connected to a number of high-temperature plates (441), and each of the high-temperature plates (441) is located on each side of the inner end of the square tube sleeve (440).

10. The central air conditioning system with a double-layer air guide structure at the air outlet according to claim 1, characterized in that: The top of the water pump (410) is provided with a water pump sleeve (450), the inner size of the water pump sleeve (450) matches the size of the (410), and the outer end of the water pump sleeve (450) is provided with several ventilation holes.

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