Air handling unit

Abstract

The utility model discloses an air handling unit. The air handling unit comprises a frame; the fan assembly is installed on the air supply channel and comprises a fan and a fan door, the fan is installed on the fan door, and the fan door is hinged to the frame; the heat exchanger is arranged on the air outlet side of the fan; the air valve is arranged on the air inlet side or the air outlet side of the fan; and the filter screen assembly is arranged on the air inlet side or the air outlet side of the fan. According to the air handling unit, the draught fan is hinged to the frame, the draught fan and components behind the draught fan are convenient to maintain and replace, full-front-face rapid maintenance can be achieved, and maintenance convenience and safety are greatly improved. Through the compact design, the fan door and the filter screen door are combined, and the size of the unit is reduced to the maximum extent. And when the unit needs to be shut down for maintenance, the airflow passage is closed by closing the air valve, so that the problem of short circuit of cold and hot airflow is effectively avoided. When a certain fan in the unit breaks down, the fault fan is disconnected by closing the corresponding air valve, so that the fault-tolerant capability of the system is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of data center refrigeration, and particularly relates to an air handling unit. Background Art

[0002] With the rapid development of information technology, the data center, as the core place for data storage, processing, and transmission, has become increasingly important. The stable operation of the data center is crucial for ensuring information security and improving data processing efficiency. During the operation of the data center, temperature control is one of the key factors to ensure the normal operation of equipment. Therefore, as an important device for regulating the internal air temperature and humidity of the data center, the performance and design of the air handling unit (AHU) directly affect the operation efficiency and stability of the data center.

[0003] However, there are some deficiencies in the actual application of traditional air handling units, which have gradually become factors restricting the development of data centers. The main problems include:

[0004] 1. Large floor area: Traditional air handling units are often bulky and require a large amount of computer room space, which has become a prominent problem in the context of the increasingly tight space in data centers.

[0005] 2. Insufficiently compact structure: The internal structure design of the unit is not compact enough, resulting in a large demand for maintenance space and increasing the difficulty of computer room layout.

[0006] 3. Inconvenient maintenance: Due to the limitations of the air handling unit design, maintenance personnel often need to enter the computer room for equipment inspection and repair, which not only increases the maintenance difficulty but also raises the maintenance cost. Content of the Utility Model

[0007] The technical problem to be solved by the utility model is to provide an air handling unit, which improves the operation efficiency and reliability of the data center through innovative structural layout and maintenance strategies.

[0008] To solve the above technical problems, the technical solution provided by the utility model is as follows:

[0009] An air handling unit, comprising:

[0010] A frame; and

[0011] A fan assembly installed on the air supply channel, including a fan and a fan door, the fan is installed on the fan door, and the fan door is hinged to the frame;

[0012] A heat exchanger disposed on the air outlet side of the fan;

[0013] A wind valve is provided on the air inlet side or the air outlet side of the blower;

[0014] A filter assembly is provided on the air inlet side or the air outlet side of the blower.

[0015] By hinging the blower to the frame, the air handling unit facilitates the maintenance and replacement of the blower and the components behind the blower, enabling full-front quick maintenance, greatly improving the convenience and safety of maintenance; by reasonably designing the maintenance paths of each device, the maintenance of some devices can be carried out without shutting down the machine, reducing the downtime and improving the continuous operation ability of the system; compact structure layout: through compact design and the setting of the blower door, the size of the unit is minimized to the greatest extent, saving valuable machine room space; when the unit needs to be shut down for maintenance, the air flow path can be closed by closing the wind valve, effectively avoiding the problem of cold and hot air flow short circuit. Further, the filter assembly includes a filter and a filter door, the filter is installed on the filter door, and the filter door is hinged to the frame. Opening the filter door can facilitate the maintenance of components such as the wind valve.

[0016] Further, the filter assembly includes a filter, and the filter is detachably installed in the frame. This setting can simplify the structure of the air handling unit and reduce the production cost.

[0017] Further, the wind valve is provided at the air inlet of the blower. By controlling the wind valve, the ventilation volume of the corresponding blower can be controlled. When one (or several) blower in the unit fails, the blower stops running, and at the same time, the wind valve corresponding to the blower is closed, and the other several blowers can continue to run, which can avoid the air flow short circuit situation that may occur in the unit when the blower stops running while the other blowers are still running.

[0018] Further, the wind valve is installed in the blower door.

[0019] Further, the wind valve is provided on the air outlet side of the blower and is fixedly connected or hinged to the frame. This setting enables the corresponding wind valve to be closed when replacing the blower of the faulty unit, avoiding the air flow short circuit in the machine room caused by replacing the blower.

[0020] Further, at least one air duct is further included, the number of the air ducts corresponds to the number of the blowers, one end of the air duct is communicated with the air outlet of the blower, and the other end is communicated with the air inlet of the wind valve. This setting can form a separate air flow channel for each wind valve and the air outlet surface of its corresponding blower, preventing air from flowing through the gap between the wind valve and the air outlet surface of its corresponding blower, resulting in air flow short circuit.

[0021] Further, it further includes a partition plate. One end of the partition plate is communicated with the air outlet surface of the fan, and the other end is communicated with the air inlet surface of the air valve. The partition plate encloses the air duct.

[0022] Further, the fan assembly further includes a fan door fixing bracket. The fan door is hinged to the fan door fixing bracket, and the fan door fixing bracket is fixedly connected to the frame.

[0023] Further, it further includes a sensor and a water valve. The sensor and the water valve are installed between the air outlet surface of the fan and the heat exchanger.

[0024] Advantages of the present utility model:

[0025] By means of an innovative structural layout and maintenance strategy, the present utility model solves the deficiencies of the prior art and improves the operation efficiency and reliability of the data center. The air handling unit has the following advantages:

[0026] 1. Full-front maintenance: By hinging the fan to the frame, it is convenient to maintain and replace the fan and the components behind the fan, and full-front quick maintenance can be achieved, greatly improving the convenience and safety of maintenance.

[0027] 2. Optimized maintenance path: By reasonably designing the maintenance paths of various devices, the maintenance of some devices can be carried out without shutting down the machine, reducing the downtime and improving the continuous operation ability of the system.

[0028] 3. Compact structural layout: Through a compact design, combined with the settings of the fan door and the filter door, the size of the unit is minimized to the greatest extent, saving valuable machine room space.

[0029] 4. Closed air flow path: When the unit needs to be shut down for maintenance, the air flow path can be closed by closing the air valve, effectively avoiding the problem of short circuit of cold and hot air flows.

[0030] 5. Fan circuit break does not affect operation: When a certain fan in the unit fails, the corresponding air valve can be closed to cut off the faulty fan, without affecting the normal operation of other fans in the unit, improving the fault tolerance of the system.

[0031] In summary, through a series of innovative measures, the air handling machine effectively solves the problems encountered in the application of traditional units in data centers, providing more reliable support for the stable operation of data centers. Description of the Drawings

[0032] Figure 1 It is a three-dimensional structural schematic diagram of the air handling unit of the present utility model with the filter door and the fan door opened in an embodiment;

[0033] Figure 2 The top view of the air handling unit of the present utility model in one embodiment;

[0034] Figure 3 The three-dimensional structure schematic diagram of the air handling unit of the present utility model with the filter door opened in one embodiment;

[0035] Figure 4 The side view of the air handling unit of the present utility model in one embodiment;

[0036] Figure 5 The three-dimensional structure schematic diagram of the air handling unit of the present utility model with the filter door and the fan door opened in another embodiment;

[0037] Figure 6 The side view of the air handling unit of the present utility model in another embodiment.

[0038] The reference numerals include:

[0039] 100 - Frame 200 - Fan assembly 210 - Fan

[0040] 220 - Fan door 230 - Fan door fixing bracket 300 - Air valve

[0041] 310 - Air valve actuator 400 - Filter assembly 410 - Filter

[0042] 420 - Filter door 500 - Heat exchanger 600 - Air duct

[0043] 610 - Partition 710 - Sensor 720 - Water valve Detailed implementation manners

[0044] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0045] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0046] It should be understood that the orientation or positional relationship indicated by terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0047] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more, unless otherwise specifically defined.

[0048] Please refer to Figure 1 , which is a preferred embodiment of the present utility model. The air handling unit includes: a frame 100; and a fan assembly 200 installed on the air supply passage, including a fan 210 and a fan door 220. The fan 210 is installed on the fan door 220, and the fan door 220 is hinged to the frame 100; a heat exchanger 500 is disposed on the air outlet side of the fan 210; an air valve 300 is disposed on the air inlet side or the air outlet side of the fan 210; and a filter assembly 400 is disposed on the air inlet side or the air outlet side of the fan 210.

[0049] The air handling unit solves the deficiencies of the prior art and improves the operation efficiency and reliability of the data center. The air handling unit has the following advantages:

[0050] 1. Full-front maintenance: By hinging the fan 210 to the frame 100, the air handling unit facilitates the maintenance and replacement of the fan 210 and the components behind the fan 210, and can achieve full-front quick maintenance, greatly improving the convenience and safety of maintenance.

[0051] 2. Optimized maintenance path: By reasonably designing the maintenance paths of each device, the maintenance of some devices (such as the filter 410) can be carried out without shutting down the machine, reducing the downtime and improving the continuous operation ability of the air handling unit.

[0052] 3. Compact structure layout: Through compact design, the size of the air handling unit is minimized to the greatest extent, saving valuable machine room space.

[0053] 4. Fan open circuit does not affect operation: When a certain 210 in the air handling unit fails, the corresponding air valve 300 can be closed to open circuit the faulty fan 210 without affecting the normal operation of other fans 210 in the unit, improving the fault tolerance of the air handling unit.

[0054] In summary, the air handling unit of the present utility model effectively solves the problems encountered in the application of traditional units in data centers, providing more reliable support for the stable operation of data centers.

[0055] As Figures 1-4 , in this embodiment, the air handling unit mainly includes a frame 100, a fan assembly 200, an air valve 300, a filter assembly 400, and a heat exchanger 500. The frame 100 is generally in the shape of a rectangular parallelepiped frame, and the filter assembly 400, the air valve 300, the fan assembly 200, and the heat exchanger 500 are connected to the frame 100 together by fasteners such as screws. The following further details each of the above components.

[0056] In an embodiment of the present application, as Figure 1 and Figure 2 shown, the filter assembly 400, the air valve 300, the fan assembly 200, and the heat exchanger 500 are arranged in sequence along the device maintenance path. When the unit is operating: The hot air flow flowing out of the computer room first passes through the filter assembly 400, then flows through the air valve 300, and after being ventilated and pressurized by the fan assembly 200, when the hot air flow passes through the heat exchanger 500, heat exchange is completed in the heat exchanger 500, and the cooled cold air flow is sent into the computer room.

[0057] In another embodiment of the present application, the installation positions of the filter assembly 400 and the fan assembly 200 are swapped, that is, the fan assembly 200, the air valve 300, the filter assembly 400, and the heat exchanger 500 are arranged in sequence along the device maintenance path.

[0058] As Figures 1-3 shown, the filter assembly 400 includes a filter 410 and a filter door 420. Among them, the filter 410 is detachably installed on the filter door 420, and the filter door 420 is rotatably connected to the frame 100 through a rotating shaft or hinge. When maintaining the filter 410, it can be disassembled and assembled on the front of the air inlet of the unit; opening the filter door 420 can maintain components such as the air valve 300. Preferably, the filter door 420 is in the form of a double-leaf door, which requires less space to open the door and can also save the maintenance passage space in the equipment room.

[0059] In another embodiment of the present application, the filter assembly 400 only includes the filter 410 and does not include the filter door 420. The filter 410 is directly detachably installed in the frame 100. With this arrangement, the structure of the air handling unit can be simplified and the production cost can be reduced.

[0060] As Figures 1-3 shown, the fan assembly 200 includes a fan 210 and a fan door 220. The fan 210 is hung on the side of the fan door 220 close to the heat exchanger 500. The fan door 220 is hinged to the frame 100 by a rotating shaft or a hinge. In another embodiment of the present application, the fan assembly 200 further includes a fan door fixing bracket 230. The fan door 220 is hinged to the fan door fixing bracket 230 by a rotating shaft or a hinge, and the fan door fixing bracket 230 is fixedly connected to the frame 100.

[0061] In one embodiment of the present application, multiple fans 210 are installed on one fan door 220 to simplify the structure of the air handling unit and reduce the production cost. In another embodiment of the present application, the fans 210 and the fan doors 220 are in one-to-one correspondence, that is, only one fan 210 is installed on one fan door 220. With this arrangement, the independence of each fan 210 and the air valve 300 can be improved. When maintaining the fan 210, on the premise of opening the filter door 420, enter the unit and open the fan door 220 to maintain and disassemble the fan 210; after opening the fan door 220, the maintenance personnel can also enter the innermost part of the unit to maintain devices such as the heat exchanger 500.

[0062] As Figure 4 shown, in this embodiment, each fan 210 corresponds to an air valve 300 and its corresponding air valve actuator 310. The air valve 300 is arranged at the air inlet of the corresponding fan 210. Specifically, the air valve 300 is installed in the other side of the corresponding fan door 220 away from the heat exchanger 500. By controlling the air valve 300, the ventilation volume of the corresponding fan 210 can be controlled.

[0063] When a certain fan (or several fans) 210 in the unit fails, the fan 210 stops running, and at the same time, the air valve 300 corresponding to the fan 210 is closed. The other several fans 210 can continue to run, which can avoid the air flow short-circuit situation that may occur in the unit when the fan 210 stops running while the other fans 210 are still running. Similarly, several air handling units are generally arranged in the machine room equipment room. When a certain unit is stopped for maintenance, in order to avoid the air flow short-circuit problem that may occur due to the shutdown of the unit, the air valves 300 corresponding to each fan 210 in the unit can be closed, thereby avoiding the local air flow short-circuit in the machine room.

[0064] For some data computer rooms with high requirements, there is a design for backup of the fans 210 in the unit. For example, according to the refrigeration capacity requirements of the unit, 3 fans 210 can meet the ventilation volume requirements. However, to improve the reliability requirements of the unit, 4 fans are adopted, that is, a configuration of 3 main fans 210 and 1 backup fan 210. In this case, during normal operation, 3 main fans 210 start, and the standby fan 210 only starts to operate when the unit operates beyond the rated capacity or when a certain fan 210 among the 3 main fans 210 fails. In this case, the air valve 300 corresponding to the backup fan 210 can be closed to shield the backup fan 210 to avoid air flow short - circuit inside the unit.

[0065] For non - variable - frequency fans 210, the air valve 300 can also be used to adjust the ventilation volume of the unit. By adjusting the opening angle of the blades of the air valve 300, the cross - sectional area and resistance of the air inlet of the fan 210 can be adjusted, so as to achieve the effect of adjusting the air volume of the fan 210.

[0066] The maintenance of the air handling unit can be completed entirely in the equipment room without entering the interior of the computer room, and there is no need to open maintenance doors on the sides of the unit, which can greatly save the maintenance space on both sides of the unit. The air handling unit has a compact structure layout and is convenient for maintenance, and is more adaptable to the requirements of high maintenance convenience, low floor area, and multiple emergency scenarios in current data computer rooms.

[0067] In other embodiments of the present application, as Figure 4 shown, the air handling unit further includes a sensor 710 and a water valve 720. The sensor 710 and the water valve 720 are installed between the air outlet surface of the fan 210 and the heat exchanger 500. After successively opening the filter door 420 and the fan door 220, maintenance personnel can enter the innermost part of the unit to maintain devices such as the sensor 710 and the water valve 720 in the cabinet.

[0068] In another embodiment of the present application, as Figure 5 and Figure 6 shown, the air valve 300 still corresponds to the fan 210 one - to - one. However, in this embodiment, the air valve 300 is arranged on the air outlet side of the fan 210 and is fixedly connected or hinged to the frame 100. With such an arrangement, when replacing the fan 210 of a faulty unit, its corresponding air valve 300 can be closed to avoid air flow short - circuit in the computer room caused by replacing the fan 210.

[0069] In other embodiments of the present application, as Figure 5 and Figure 6As shown, the air handling unit further includes at least one air duct 600. The number of the air ducts 600 corresponds to the number of the fans 210. One end of the air duct 600 is communicated with the air outlet of the fan 210, and the other end is communicated with the air inlet of the air valve 300. With such a setting, a separate air flow channel can be formed between each air valve 300 and the air outlet surface of its corresponding fan 210, preventing air from flowing through the gap between the air valve 300 and the air outlet surface of its corresponding fan 210 and causing air flow short circuit. Specifically, the air handling unit further includes a partition 610. One end of the partition 610 is communicated with the air outlet surface of the fan 210, and the other end is communicated with the air inlet surface of the air valve 300. The partition 610 encloses the air duct 600. In this embodiment, when the unit needs to be shut down for maintenance, the air flow path can be closed by closing the air valve 300, effectively avoiding the problem of hot and cold air flow short circuit.

[0070] The above content is only the preferred embodiment of the present invention. For those of ordinary skill in the art, many changes can be made in the specific implementation manners and application scopes according to the idea of the present invention. As long as these changes do not depart from the concept of the present invention, they all belong to the protection scope of the present invention.

Claims

1. An air handling unit, characterized in that: include: Frame(100); And installed on the air supply duct A fan assembly (200), comprising a fan (210) and a fan door (220), wherein the fan (210) is mounted on the fan door (220), and the fan door (220) is hinged to the frame (100); A heat exchanger (500) is arranged on the air outlet side of the fan (210); An air valve (300) is arranged on the air inlet side or the air outlet side of the fan (210); The filter assembly (400) is arranged on the air inlet side or the air outlet side of the fan (210).

2. The air handling unit according to claim 1, characterized in that: The filter assembly (400) comprises a filter (410) and a filter door (420), the filter (410) being mounted on the filter door (420), and the filter door (420) being hinged to the frame (100).

3. The air handling unit according to claim 1, characterized in that: The filter assembly (400) comprises a filter (410), and the filter (410) is detachably embedded in the frame (100).

4. The air handling unit according to claim 2 or 3, characterized in that: The air valve (300) is arranged at the air inlet of the fan (210).

5. The air handling unit according to claim 4, characterized in that: The air valve (300) is embedded in the fan door (220).

6. The air handling unit according to claim 2 or 3, characterized in that: The air valve (300) is arranged on the air outlet side of the fan (210) and is fixedly connected or hinged to the frame (100).

7. The air handling unit according to claim 6, characterized in that: It also includes at least one air duct (600), the number of the air ducts (600) corresponds to the number of the fans (210), one end of the air duct (600) is connected to the air outlet of the fan (210), and the other end is connected to the air inlet of the air valve (300).

8. The air handling unit according to claim 7, characterized in that: It also includes a partition (610), one end of which is connected to the air outlet surface of the fan (210), and the other end of which is connected to the air inlet surface of the air valve (300), and the partition (610) encloses the air duct (600).

9. The air handling unit according to claim 1, characterized in that: The fan assembly (200) further comprises a fan door fixing frame (230), the fan door (220) and the fan door fixing frame (230) are hinged together, and the fan door fixing frame (230) and the frame (100) are fixedly connected together.

10. The air handling unit according to claim 1, characterized in that: It also includes a sensor (710) and a water valve (720), wherein the sensor (710) and the water valve (720) are installed between the air outlet surface of the fan (210) and the heat exchanger (500).

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