Concealed vertical water-cooled air conditioner

Abstract

This utility model discloses a concealed vertical water-cooled coil air conditioner, relating to the field of water-cooled coil air conditioning technology. It includes a housing with an inlet and outlet water pipe installed on one side. A DC brushless motor and two volute fans are installed on the inner wall of the housing, with the two output shafts of the DC brushless motor fixed to the impellers inside the two volute fans. A finned heat exchanger, consisting of a coil and aluminum fins wrapped around the coil, is installed on the inner wall of the housing. A return air filter is provided on the inner wall of the housing for filtering the return air. This utility model's water-cooled coil air conditioner is concealed vertically within a partition wall, completely hiding the indoor unit after installation. It also changes the air supply and return method from the side-out, bottom-return of a conventional fan coil unit to a concealed vertical bottom-out, top-return configuration, improving heat exchange uniformity and facilitating disassembly and maintenance of the lower fan, thus enhancing ease of use.

Description

Technical Field

[0001] This utility model relates to the field of water-cooled coil air conditioning technology, specifically a concealed vertical water-cooled coil air conditioner. Background Technology

[0002] Water coils typically refer to the core components in HVAC systems that use water (chilled water or hot water) as the heat source medium to exchange heat with the air.

[0003] Traditional water-cooled coil air conditioners are all horizontal and ceiling-mounted, so the air vents are visible after installation and cannot be completely concealed. In addition, the air supply method is a rear blower type (i.e., air is discharged from the side and returned from the bottom), which leads to uneven heat exchange and makes it inconvenient to disassemble and maintain the lower fan. To address these issues, we offer a concealed vertical water-cooled coil air conditioner. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a concealed vertical water-cooled air conditioner coil unit.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a concealed vertical water-cooled coil air conditioner, comprising a housing, an inlet pipe and a return pipe installed on one side of the housing, a DC brushless motor and two volute fans installed on the inner wall of the housing, and the two output shaft ends of the DC brushless motor being fixed to the impellers inside the two volute fans respectively, a finned heat exchanger installed on the inner wall of the housing, the finned heat exchanger being composed of a coil and aluminum fins wrapped around the coil, a return air filter screen for return air filtration provided on the inner wall of the housing, an internal sloped water collection tray for collecting water droplets on the finned heat exchanger fixedly connected to the inner wall of the housing, and a condensate collection tray for collecting condensate fixedly connected to one side of the housing.

[0006] Furthermore, a baffle for guiding and conveying condensate is fixedly connected to one side of the outer shell. By setting the baffle, the condensate generated on the outer surface of the inlet pipe and the return pipe can be guided and conveyed to the condensate collection pan for centralized discharge.

[0007] Furthermore, a nameplate is fixedly connected to the front of the outer casing for recording the production information and technical data under rated operating conditions of the concealed vertical water-cooled air conditioner. By setting the nameplate, the production information and technical data under rated operating conditions of the concealed vertical water-cooled air conditioner can be recorded.

[0008] Furthermore, two mounting blocks for installing and fixing the concealed vertical water-cooled air conditioner are fixedly connected to both the front and back of the outer casing. By setting the mounting blocks, the concealed vertical water-cooled air conditioner can be easily installed and fixed, and the installation position of the concealed vertical water-cooled air conditioner can be finely adjusted through the waist-shaped holes opened on the mounting blocks.

[0009] Furthermore, a support block is fixedly connected to the inner wall of the outer shell, and the support block abuts against the return air filter. By setting the support block, the return air filter can be limited and supported, thereby improving the installation stability.

[0010] Furthermore, the outer shell is provided with a first limiting block and a second limiting block for limiting and supporting the inlet and outlet water pipes. The first limiting block is fixed to the outer shell. The first limiting block and the second limiting block are fixed together by bolts, so that the inlet and outlet water pipes are inserted between the first limiting block and the second limiting block. The first limiting block and the second limiting block are connected by bolts, thereby realizing the limiting and fixing of the inlet and outlet water pipes, and thus improving the installation stability.

[0011] Furthermore, the concealed vertical water-cooled air conditioner uses PWM control technology to achieve continuous stepless speed regulation, allowing the air volume to be adjusted within the range of 15% to 100%, achieving the lowest speed and lowest noise operation of the unit, and truly realizing quiet operation.

[0012] Compared with existing technologies, this concealed vertical water-cooled coil air conditioner has the following advantages:

[0013] 1. The water-cooled coil air conditioner in this utility model is installed in a concealed vertical manner inside the partition wall, so that the indoor unit of the air conditioner is completely hidden after installation. The air supply and return method is changed from the side outlet and bottom return of the ordinary fan coil to the bottom outlet and top return of the concealed vertical installation, thereby improving the heat exchange uniformity. At the same time, it is convenient to disassemble and maintain the lower fan, thereby improving the convenience of use.

[0014] 2. This utility model, by setting a baffle, can guide and transport condensate water; by setting a nameplate, it can record production information and technical data under rated working conditions of the concealed vertical water coil air conditioner; by setting an installation block, it can facilitate the installation and fixation of the concealed vertical water coil air conditioner and allow for fine-tuning of the installation position; by setting a support block, it can limit and support the return air filter, thereby improving installation stability; by setting a first limit block and a second limit block, it can limit and fix the inlet and return water pipes, thereby improving installation stability. Attached Figure Description

[0015] Figure 1 This is a front view of the three-dimensional structure of this utility model;

[0016] Figure 2 This is a right-side view of the three-dimensional structure of this utility model;

[0017] Figure 3 This is a left-side view of the three-dimensional structure of this utility model;

[0018] Figure 4This is a three-dimensional structural cross-sectional view of the present invention;

[0019] Figure 5 This is a schematic diagram showing the connection between the first limiting block and the second limiting block of this utility model.

[0020] In the diagram: 1. Outer casing; 2. Inlet pipe; 3. Return pipe; 4. DC brushless motor; 5. Volute fan; 6. Finned heat exchanger; 7. Return air filter; 8. Built-in sloped water collection tray; 9. Condensate collection tray; 10. Baffle; 11. Nameplate; 12. Mounting block; 13. Support block; 14. First limit block; 15. Second limit block. Detailed Implementation

[0021] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0022] Traditional water-cooled coil air conditioners, as described in the background section, are horizontal and ceiling-mounted. After installation, the air vents are visible and cannot be completely concealed. Furthermore, the air supply method is a rear-blowing type (i.e., side air outlet and bottom return air), which results in uneven heat exchange. At the same time, it is inconvenient to disassemble and maintain the lower fan. Therefore, this embodiment provides a concealed vertical water-cooled coil air conditioner.

[0023] See Figures 1 to 5 This embodiment proposes a concealed vertical water coil air conditioner, including a housing 1, which is made of galvanized sheet to ensure the structural strength of the water coil air conditioner.

[0024] Two mounting blocks 12 for installing and fixing concealed vertical water coil air conditioners are fixedly connected to the front and back of the outer casing 1. By setting the mounting blocks 12, the concealed vertical water coil air conditioner can be easily installed and fixed, and the installation position of the concealed vertical water coil air conditioner can be finely adjusted through the waist-shaped holes opened on the mounting blocks 12.

[0025] The front of the outer casing 1 is fixedly connected to a nameplate 11 for recording the production information and technical data under rated operating conditions of the concealed vertical water coil air conditioner. By setting the nameplate 11, the production information and technical data under rated operating conditions of the concealed vertical water coil air conditioner can be recorded. The instruction manual on the nameplate 11 can be set by engraving, thereby effectively avoiding wear and tear on the instruction manual on the nameplate 11 due to long-term use.

[0026] A water inlet pipe 2 and a water return pipe 3 are installed on one side of the outer casing 1. A DC brushless motor 4 and two volute fans 5 are installed on the inner wall of the outer casing 1. The two output shaft ends of the DC brushless motor 4 are respectively fixed to the impellers inside the two volute fans 5. A finned heat exchanger 6 is installed on the inner wall of the outer casing 1. The finned heat exchanger 6 consists of a coil and aluminum fins wrapped around the coil.

[0027] Water inlet pipe 2 and water return pipe 3 are used for the water inlet and water return of the air conditioner, respectively. Both water inlet pipe 2 and water return pipe 3 are made of seamless copper tubing and are formed into a serpentine coil using a large U-shaped bend process. At the same time, aluminum fins are wrapped around the coil for heat exchange.

[0028] The DC brushless motor 4 uses electronic commutation instead of mechanical commutation, eliminating the friction between the brush and the motor and avoiding electromagnetic interference and noise generated during mechanical commutation. The impeller in the volute fan 5 can be a high-efficiency multi-blade centrifugal fan to ensure noise reduction.

[0029] After the DC brushless motor 4 is connected to the power supply and started, it can drive the two volute fans 5 to rotate synchronously, forcing air to flow through the coil, enhancing heat exchange efficiency, and changing the air supply and return method of the air conditioner from the side outlet and bottom return of the ordinary fan coil to the bottom outlet and top return, so as to improve the heat exchange uniformity. At the same time, it is convenient to disassemble and maintain the lower fan, thereby improving the convenience of use.

[0030] The concealed vertical water coil air conditioner uses PWM control technology to achieve continuous stepless speed regulation, allowing the air volume to be adjusted within the range of 15% to 100%, achieving the lowest speed and lowest noise operation of the unit, truly realizing quiet operation.

[0031] The outer casing 1 is provided with a first limiting block 14 and a second limiting block 15 for limiting and supporting the water inlet pipe 2 and the water return pipe 3. The first limiting block 14 is fixed to the outer casing 1. The first limiting block 14 and the second limiting block 15 are fixed together by bolts. The water inlet pipe 2 and the water return pipe 3 are inserted between the first limiting block 14 and the second limiting block 15, and the first limiting block 14 and the second limiting block 15 are connected by bolts, thereby realizing the limiting and fixing of the water inlet pipe 2 and the water return pipe 3, and thus improving the installation stability.

[0032] The inner wall of the outer casing 1 is provided with a return air filter screen 7 for return air filtration. The inner wall of the outer casing 1 is fixedly connected with an internal slope water collection tray 8 for collecting water droplets on the finned heat exchanger 6. One side of the outer casing 1 is fixedly connected with a condensate water collection tray 9 for collecting condensate.

[0033] The return air filter 7 can filter dust and other impurities in the return air, and the built-in sloped water collection tray 8 can collect the water droplets condensed on the finned heat exchanger 6 and transport them to the condensate water collection tray 9 for centralized treatment of condensate. At the same time, the built-in sloped water collection tray 8 has a certain slope, which can facilitate the transportation of water droplets.

[0034] A support block 13 is fixedly connected to the inner wall of the outer casing 1, and the support block 13 abuts against the return air filter 7. By setting the support block 13, the return air filter 7 can be limited and supported, thereby improving the installation stability.

[0035] A baffle 10 for guiding and conveying condensate is fixedly connected to one side of the outer casing 1. By setting the baffle 10, the condensate generated on the outer surface of the inlet pipe 2 and the return pipe 3 can be guided and conveyed to the condensate collection pan 9 for centralized discharge.

[0036] The cooling modes of water-cooled coil air conditioners are chilled water circulation, air cooling, and condensation dehumidification. Chilled water circulation involves chilled water (usually 7~12℃) flowing from the chiller unit into the coil. Air cooling involves hot indoor air being blown across the coil by a fan, with heat transferred to the chilled water through the fins and pipe walls, causing the air temperature to drop. Condensation dehumidification involves water vapor in the air condensing into water droplets upon contact with the condensate, which are collected and discharged by the condensate pan, achieving cooling and dehumidification.

[0037] The heating modes of water-cooled coil air conditioners are hot water circulation and air heating. Hot water circulation involves hot water (usually 40~50℃) flowing from the boiler or heat pump into the coil. Air heating involves cold air flowing through the coil to absorb heat, and after its temperature rises, it is blown into the room.

[0038] The components in the accompanying drawings of this utility model are for styling reference only and are not specific dimensional standards. The specific dimensions are determined according to the actual production requirements, and the materials of each component can be replaced accordingly based on actual needs.

[0039] Working Principle: The water-cooled coil air conditioner is concealed vertically within the partition wall, completely hiding the indoor unit after installation. The inlet pipe 2 and return pipe 3 are used for the air conditioner's water intake and return, respectively, and a large U-shaped bend is used to form the coil. Aluminum fins are wrapped around the coil to increase the heat exchange area. After the DC brushless motor 4 is connected to the power supply and started, it drives two volute fans 5 to rotate synchronously, thereby changing the air supply and return method of the air conditioner from the side outlet and bottom return of the ordinary fan coil to bottom outlet and top return, improving the heat exchange uniformity and facilitating the disassembly and maintenance of the lower fan, thus improving the convenience of use. At the same time, the return air filter 7 can filter dust and other impurities in the return air, and the built-in sloped water collection tray 8 can collect the water droplets condensed on the finned heat exchanger 6, and transport them to the condensate water collection tray 9 for centralized discharge of condensate.

Claims

1. A concealed vertical water-cooled air conditioner, including a casing (1), characterized in that: The outer shell (1) is equipped with an inlet pipe (2) and a return pipe (3) on one side. The inner wall of the outer shell (1) is equipped with a DC brushless motor (4) and two volute fans (5). The two output shaft ends of the DC brushless motor (4) are respectively fixed to the impellers inside the two volute fans (5). The inner wall of the outer shell (1) is equipped with a finned heat exchanger (6). The finned heat exchanger (6) is composed of a coil and aluminum fins wrapped around the coil. The inner wall of the outer shell (1) is provided with a return air filter screen (7) for return air filtration. The inner wall of the outer shell (1) is fixedly connected with an internal sloped water collection tray (8) for collecting water droplets on the finned heat exchanger (6). The outer shell (1) is fixedly connected with a condensate collection tray (9) for collecting condensate on one side.

2. The concealed vertical water-cooled air conditioner according to claim 1, characterized in that: A baffle (10) for guiding and conveying condensate is fixedly connected to one side of the outer casing (1).

3. The concealed vertical water-cooled air conditioner according to claim 1, characterized in that: The front of the outer casing (1) is fixedly connected to a nameplate (11) for recording production information of the concealed vertical water turbine coil air conditioner and technical data under rated working conditions.

4. The concealed vertical water-cooled air conditioner according to claim 1, characterized in that: The front and back of the outer casing (1) are both fixedly connected to two mounting blocks (12) for the installation and fixing of concealed vertical water turbine coil air conditioners.

5. The concealed vertical water-cooled air conditioner according to claim 1, characterized in that: The inner wall of the outer shell (1) is fixedly connected to a support block (13), and the support block (13) abuts against the return air filter (7).

6. The concealed vertical water-cooled air conditioner according to claim 1, characterized in that: The outer shell (1) is provided with a first limiting block (14) and a second limiting block (15) for limiting and supporting the water inlet pipe (2) and the water return pipe (3), and the first limiting block (14) is fixed to the outer shell (1), and the first limiting block (14) and the second limiting block (15) are fixed together by bolts.

7. The concealed vertical water-cooled air conditioner according to claim 1, characterized in that: The concealed vertical water-cooled air conditioner uses PWM control technology to achieve continuous stepless speed regulation.

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