Patent Publication Number: US-2022240420-A1

Title: Ventilation wall system and data center

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application claims priority to Chinese Patent Application No. 202120234768.0, filed on Jan. 27, 2021, which is hereby incorporated by reference in its entirety. 
     TECHNICAL FIELD 
     This application relates to the heat dissipation field, and in particular, to a ventilation wall system and a data center. 
     BACKGROUND 
     Currently, with continuous advancement of digitalization, high-density processing places such as data centers keep increasing, and heat dissipation and cooling need to be continuously performed on the high-density processing places. This raises a higher requirement on a cooling capacity of an air conditioner. A conventional room-level air conditioner sends cold air to a data center in an overhead air distribution mode or an underfloor air distribution mode. In this way, an air duct or a raised floor needs to be designed, and a design scheme is complex. In addition, a large floor area is occupied, and installation of an entire system takes a long time. However, most existing data centers with ventilation wall air conditioners use larger heat exchangers and fans to improve cooling capacities of the air conditioners, and use a small-granularity form of a small heat exchanger with a single fan or a large-granularity form of a large heat exchanger with fans in structure. The small-granularity form may achieve different cooling capacities through arrangement and combination of modules. However, a single cooling mode cannot meet requirements of different application scenarios. The large-granularity form occupies a large space. In addition, an installation mode is basically a conventional assembly mode in which key cooling components are arranged in a cabinet. Therefore, a cooling mode is difficult to change. 
     SUMMARY 
     In view of this, a ventilation wall system and a data center need to be provided, to effectively improve adaptability of the ventilation wall system. 
     According to a first aspect of embodiments of this application, a ventilation wall system is provided. The ventilation wall system has an air intake end for air entering and an air exhaust end for air exhausting. The ventilation wall system includes a heat exchanger module, a fan module, an electric control module, and an air filter module. The heat exchanger module is configured to exchange heat for air entering the heat exchanger module. The fan module is configured to convey air on one side of the fan module to the other side of the fan module. The electric control module is electrically connected to the fan module and the heat exchanger module. The air filter module is configured to filter air entering the air intake end. When the fan module is disposed on a side that is of the heat exchanger module and that is close to the air exhaust end, air after heat exchange performed by the heat exchanger module is sent out by using the fan module. When the fan module is disposed on a side that is of the heat exchanger module and that is close to the air intake end, air is conveyed, by using the fan module, to the heat exchanger module for heat exchange. 
     In the ventilation wall system, modular processing is performed on the fan module, the heat exchanger module, the electric control module, and the air filter module, to facilitate production. Only connection, fastening, and wiring are needed for assembly, so that installation is convenient, and efficiency is improved. During assembly, a module installation sequence may be adjusted based on different requirements, to switch between an air supply mode and an air suction mode, thereby quickly implementing adjustment, and improving adaptability of the ventilation wall system. Modular setting enables any module to be quickly replaced and maintained. 
     In a possible embodiment of the first aspect, the fan module includes a fan rack and a fan, an accommodating cavity is disposed on the fan rack, the fan is disposed in the accommodating cavity, and the fan is configured to suck air from one side of the accommodating cavity and exhaust the air from the other side of the accommodating cavity. The fan rack including the accommodating cavity is disposed, and the fan is disposed in the accommodating cavity, to facilitate the fan in driving air, thereby improving efficiency of the ventilation wall system. 
     In a possible embodiment of the first aspect, the fan rack includes a first support bar, a second support bar, a third support bar, and a spacer plate. The first support bar, the second support bar, and the third support bar are disposed perpendicular to each other, and a plurality of spaces are separated on the fan rack. The spacer plate is separately connected to the first support bar and the second support bar, or the second support bar and the third support bar, to isolate the plurality of separated spaces from each other to form the accommodating cavity. The first support bar, the second support bar, the third support bar, and the spacer plate are disposed to separate a plurality of accommodating cavities on the fan rack, so that fans may respectively exchange air for different accommodating cavities, thereby facilitating maintenance on one fan or accommodating cavity separately. 
     In a possible embodiment of the first aspect, the fan rack further includes an air deflector, the air deflector is disposed on the first support bar and the third support bar, and the air deflector is configured to guide a flow direction of air, so that air is sucked from one side of the accommodating cavity and exhausted from the other side of the accommodating cavity. The air deflector is disposed to enhance air diversion performed by the fan module. 
     In a possible embodiment of the first aspect, the air deflector includes a front air deflector and a rear air deflector, and the front air deflector and the rear air deflector are disposed on two sides of the accommodating cavity. An air intake vent relative to the fan is disposed in a middle part of the front air deflector, and air exhaust vents are disposed on the rear air deflector. The front and rear air deflectors are disposed to improve working efficiency of the fan. 
     In a possible embodiment of the first aspect, the fan is a centrifugal fan, and the air exhaust vents are disposed along a circumferential direction of the rear air deflector. The air exhaust vents disposed along the circumferential direction help homogenize air blown out by the centrifugal fan, so that the exhausted air is soft. 
     In a possible embodiment of the first aspect, the fan module further includes a mounting base, the mounting base is disposed in the accommodating cavity, and the fan is disposed in the accommodating cavity by using the mounting base. The mounting base is disposed to facilitate setting of a specific position of the fan as required. 
     In a possible embodiment of the first aspect, the fan rack further includes a reinforcing structure. The reinforcing structure is configured to reinforce a connection, to prevent the connection of the fan rack from being loosened or deformed due to vibration or the like during operation of the fan, causing the fan module to break up. 
     In a possible embodiment of the first aspect, the heat exchanger module includes a heat exchanger frame, a heat exchanger, and a pipeline, and the heat exchanger frame is configured to place the heat exchanger and configure the pipeline connected to the heat exchanger. 
     In a possible embodiment of the first aspect, the heat exchanger module further includes a humidifier and a water pan. The humidifier is configured to: when indoor relative humidity is relatively low, humidify dry hot air entering the heat exchanger module. 
     In a possible embodiment of the first aspect, the electric control module includes a mounting rack and an electric control box, the mounting rack is disposed on the heat exchanger frame, the electric control box is disposed on the mounting rack, and the electric control box is electrically connected to the fan module and the heat exchanger separately. The mounting rack is disposed to facilitate the electric control module in adjusting, based on a structure of the heat exchanger module, a position at which the electric control module is disposed. 
     In a possible embodiment of the first aspect, the ventilation wall system further includes a connecting mechanism, and the connecting mechanism is configured to connect the fan module, the heat exchanger module, the electric control module, and the air filter module. 
     In a possible embodiment of the first aspect, the connecting mechanism includes a corner piece and a bolt, the electric control module is disposed on the heat exchanger module by using the bolt, the corner piece is disposed on the fan module and the heat exchanger module, and the fan module and the heat exchanger module are connected to each other by using the corner piece. 
     In a possible embodiment of the first aspect, the ventilation wall system further includes a flow equalizing frame, and the flow equalizing frame is disposed between the fan module and the heat exchanger module to increase a distance at which air is conveyed to the heat exchanger module by using the fan module. The flow equalizing frame may equalize a flow of air, so that air entering the heat exchanger module through the fan module remains relatively even. 
     According to a second aspect of the embodiments of this application, a data center is provided, including the ventilation wall system according to any one of the first aspect and the possible embodiments of the first aspect. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         FIG. 1  is a schematic diagram of an air supply mode of a ventilation wall system according to an embodiment of this application; 
         FIG. 2  is a schematic diagram of an air suction mode of a ventilation wall system according to an embodiment of this application; 
         FIG. 3  is a schematic partially exploded view of a fan module of the ventilation wall system shown in  FIG. 1 ; and 
         FIG. 4  is a schematic diagram of a heat exchanger module and an electric control module of the ventilation wall system shown in  FIG. 1 . 
     
    
    
     DESCRIPTION OF EMBODIMENTS 
     The following describes technical solutions in the embodiments of this application with reference to accompanying drawings in the embodiments of this application. 
     The following terms “first” and “second” are merely intended for a purpose of description, and shall not be understood as an indication or implication of relative importance or implicit indication of a quantity of indicated technical features. Therefore, a feature limited by “first” or “second” may explicitly or implicitly include one or more features. In description of this application, unless otherwise stated, “a plurality of” means two or more than two. Orientation terms such as “up”, “down”, “left”, and “right” are defined relative to an orientation of schematic placement of components in the accompanying drawings. It should be understood that these directional terms are relative concepts and are used for relative description and clarification. These directional terms may vary accordingly depending on an orientation in which the components are placed in the accompanying drawings. 
     In this application, unless otherwise expressly specified and limited, the term “connection” should be understood in a broad sense. For example, “connection” may be a fixed connection, a detachable connection or an integral connection; and may be a direct connection or an indirect connection by using an intermediate medium. The term “and/or” used in this specification includes any and all combinations of one or more related listed items. 
     When the following embodiments are described in detail with reference to schematic diagrams, for ease of description, a diagram indicating a partial structure of a component is partially enlarged not based on a general scale. In addition, the schematic diagrams are merely examples, and should not limit the protection scope of this application herein. 
       FIG. 1  shows a ventilation wall system  100  provided in an embodiment of this application. The ventilation wall system  100  has an air intake end for air entering and an air exhaust end for air exhausting. The ventilation wall system  100  can perform heat exchange and cooling for a place requiring a large cooling capacity, such as a data center. Based on different places, an installation sequence of the ventilation wall system  100  may be adjusted to switch between an air supply mode in which cold air is exhausted from the ventilation wall system  100  and an air suction mode in which hot air is sucked from a place into the ventilation wall system  100 , to meet requirements of different places. 
     The ventilation wall system  100  includes a fan module  10 , a heat exchanger module  20 , an electric control module  30 , and an air filter module  40 . The air intake end and the air exhaust end of the ventilation wall system  100  are located in a same horizontal plane. The fan module  10  and the heat exchanger module  20  are disposed adjacent to each other in a horizontal direction. A fan is disposed on the fan module  10 , and can convey air on one side of the fan module  10  to the other side of the fan module  10 . A heat exchanger is disposed on the heat exchanger module  20 , and can exchange heat for hot air entering the heat exchanger module  20 , so that the hot air is changed into cold air, and the cold air is exhausted from the other side. The electric control module  30  is electrically connected to the fan module  10  and the heat exchanger module  20 , and is configured to control power and working statuses of the fan module  10  and the heat exchanger module  20 , to maintain normal operation of the ventilation wall system  100 . An air filter for filtering air is disposed on the air filter module  40 , and is configured to filter air entering the ventilation wall system  100 , to prevent dust and other impurities from entering the ventilation wall system  100  and causing damage to the ventilation wall system  100 . 
     Refer to  FIG. 1  and  FIG. 2 . An installation sequence of modules such as the fan module  10 , the heat exchanger module  20 , the electric control module  30 , and the air filter module  40  may be adjusted to quickly switch between the air supply mode and the air suction mode. As shown in  FIG. 1 , when the ventilation wall system  100  is in the air supply mode, an installation sequence from the air intake end to the air exhaust end is: the air filter module  40 , the heat exchanger module  20 , and the fan module  10 . After heat exchange is performed on hot air in a place by the heat exchanger module  20 , cold air is sent out from the other side of the heat exchanger module  20  and enters the fan module  10 , and the fan module  10  blows the cold air sent by the heat exchanger module  20  out of the ventilation wall system  100 . As shown in  FIG. 2 , when the ventilation wall system  100  is in the air suction mode, the installation sequence from the air intake end to the air exhaust end is: the air filter module  40 , the fan module  10 , and the heat exchanger module  20 . Hot air in a place may be sucked into the ventilation wall system  100  by using the fan module  10 , sent to the heat exchanger module  20  for heat exchange, and then sent out of the ventilation wall system  100  from the other side of the heat exchanger module  20 . 
     Refer to  FIG. 3 . The fan module  10  includes a fan rack  11  and a fan  12  disposed on the fan rack  11 . The fan rack  11  includes a plurality of first support bars  111 , second support bars  112 , third support bars  113 , spacer plates  114 , and air deflectors  115 . The first support bar  111 , the second support bar  112 , and the third support bar  113  are disposed perpendicular to each other, and a plurality of spaces are separated on the fan rack  11 . The spacer plate  114  is separately connected to the first support bar  111  and the second support bar  112 , or the second support bar  112  and the third support bar  113 , to isolate the plurality of separated spaces from each other to form an accommodating cavity  116  used to install the fan  12 . The fan  12  is disposed in the accommodating cavity  116 . The fan  12  is configured to suck air into the accommodating cavity  116  from one side of the accommodating cavity  116  and exhaust the air from the other side of the accommodating cavity  116 . The air deflector  115  is disposed on the first support bar  111  and the third support bar  113 , to cover the accommodating cavity  116 . The air deflector  115  is configured to guide a flow direction of air to enhance air diversion performed by the fan module, so that air is sucked from one side of the accommodating cavity  116  and exhausted from the other side of the accommodating cavity  116 . 
     The air deflector  115  includes a front air deflector  1151  and a rear air deflector  1152 . The front air deflector  1151  and the rear air deflector  1152  are disposed opposite to each other, and are respectively disposed on two sides of the accommodating cavity  116 , to seal an opening of the accommodating cavity  116 . An air intake vent  1153  relative to the fan  12  is disposed in a middle part of the front air deflector  1151 . Air exhaust vents (not shown in the figure) are disposed on the rear air deflector  1152 . The air intake vent  1153  is used for air to enter the accommodating cavity  116 , and the air exhaust vents are used for air to flow out of the accommodating cavity  116 . 
     In an embodiment, the fan  12  is a centrifugal fan. Air exhaust vents are disposed on the rear air deflector  1152  around an outer periphery of the fan  12 . The centrifugal fan sucks air into the centrifugal fan along an axial direction of the centrifugal fan from a side that is of the front air deflector  1151  and that is away from the accommodating cavity  116  through the air intake vent  1153 , and exhausts the air into the accommodating cavity  116  along a radial direction of the centrifugal fan. The air exhausted into the accommodating cavity  116  is exhausted from the accommodating cavity  116  through the air exhaust vents disposed on the rear air deflector  1152 , and the plurality of air exhaust vents disposed along a circumferential direction enables the air to be evenly exhausted, so that the exhausted air is soft. 
     It may be understood that, in another embodiment, the fan  12  may alternatively be another type of fan, such as an axial flow fan or a rotary fan, and positions of the air exhaust vents on the rear air deflector  1152  may be adjusted based on a type of the fan. If the fan  12  is an axial flow fan, the positions of the air exhaust vents on the rear air deflector  1152  are opposite to a position of the air intake vent  1153 . 
     In an embodiment, a plurality of avoidance holes  1154  are further disposed on the rear air deflector  1152  along a circumferential direction of the rear air deflector  1152 . The avoidance holes  1154  may be disposed to avoid other elements disposed on the fan module  10 , to prevent interference. 
     The fan module  10  further includes a mounting base  13 . The mounting base  13  is disposed in the accommodating cavity  116 . The fan  12  is disposed in the accommodating cavity  116  by using the mounting base  13 . 
     In an embodiment, the mounting base  13  is disposed on two first support bars  111  close to the rear air deflector  1152 . However, this imposes no limitation. The mounting base  13  may alternatively be disposed on the second support bar  112 , the third support bar  113 , the spacer plate  114 , or even the rear air deflector  1152 , provided that the fan  12  may be mounted in the accommodating cavity  116 . The mounting base  13  is disposed to facilitate setting of a specific position of the fan  12  as required. 
     The fan rack  11  further includes a reinforcing structure  117 . The reinforcing structure  117  is configured to reinforce mutual connections between the first support bar  111 , the second support bar  112 , the third support bar  113 , the spacer plate  114 , the air deflector  115 , and the like, to prevent the connections of the fan rack  11  from being loosened or deformed due to vibration or the like during operation of the fan  12 , causing the fan module  10  to break up. 
     In an embodiment, the reinforcing structure  117  includes a reinforcing bar and a reinforcing sheet. The reinforcing bar is connected to the first support bar  111  and another opposite first support bar  111 , or is disposed on the air deflector  115 . The reinforcing sheet is connected to the second support bar  112  and the third support bar  113 . 
     The spacer plate  114  and the air deflector  115  are fixedly connected to the first support bar  111 , the second support bar  112 , and the third support bar  113  separately by using screws or the like. 
     Refer to  FIG. 4 . The heat exchanger module  20  includes a heat exchanger frame  21 , a heat exchanger  22 , and a pipeline  23 . The heat exchanger frame  21  is configured to place the heat exchanger  22  and configure the pipeline  23  connected to the heat exchanger  22 . A cooling medium for heat exchange is circulated in the heat exchanger  22 , and is used for heat exchange with air entering the heat exchanger module  20 , to cool the air and exhaust the air from the other side. The pipeline  23  is used for flowing and circulation of the cooling medium. 
     The heat exchanger module  20  further includes a humidifier  24  and a water pan  25 . The humidifier  24  and the water pan  25  are separately disposed on the heat exchanger frame  21 . The humidifier  24  is configured to: when indoor relative humidity is relatively low, humidify dry hot air entering the heat exchanger module  20 , to increase humidity of exhausted air, and enable humidity of indoor air to meet a requirement. The water pan  25  is a water container and is disposed at the bottom of the heat exchanger frame  21 . 
     A protection plate  26  is disposed on an outer periphery of the heat exchanger frame  21  along a flow direction of air, to protect the heat exchanger  22  and restrict air flowing. 
     In an embodiment, openings on two sides of the heat exchanger frame  21  are consistent with openings on a side of the air intake vent  1153  and a side of the air exhaust vents of the fan rack  11 , so that the fan rack  11  may be connected to either of the two sides of the heat exchanger frame  21 . However, this imposes no limitation. A closed empty box, an empty box with openings at both ends, or the like may alternatively be added to the heat exchanger frame  21  or the fan rack  11 , so that openings of the heat exchanger frame  21  or the fan rack  11  on which the empty box is disposed are consistent with the openings of the fan rack  11  or the heat exchanger frame  21 . 
     It may be understood that a reinforcing structure  117  may be further disposed on the heat exchanger frame  21 , to reinforce the heat exchanger frame  21 . 
     The electric control module  30  includes a mounting rack  31  and an electric control box  32 . The mounting rack  31  is disposed on the heat exchanger frame  21 . The electric control box  32  is disposed on the mounting rack  31 . The electric control box  32  is electrically connected to the fan  12 , the heat exchanger  22 , the humidifier  24 , and the like separately, to control the fan  12 , the heat exchanger  22 , the humidifier  24 , and the like. The mounting rack  31  is disposed to facilitate the electric control module  30  in adjusting, based on a structure of the heat exchanger module  20 , a position at which the electric control module  30  is disposed. 
     The electric control box  32  includes a control system  321  and an interaction mechanism  322 . A control circuit for controlling the ventilation wall system  100  is disposed in the control system  321 . The control circuit is electrically connected to the fan  12 , the heat exchanger  22 , the humidifier  24 , and the like separately. The interaction mechanism  322  is configured to perform human-computer interaction, so that an operator may freely select and control a working status of the ventilation wall system  100 . 
     A related control program may be preset in the control system  321 . If a heat amount in a place varies according to different time of each day, control programs for different time of each day may be preset to control different operating statuses based on different time of each day. If a local climate varies greatly in one year, control programs for different months may be preset to control operating statuses in different months, and so on. 
     The interaction mechanism  322  may include a touchscreen, a display, a button, a switch, and the like. 
     The air filter module  40  includes a filter rack  41  and an air filter  42 . The air filter  42  is disposed on the filter rack  41 . 
     A material of the air filter  42  is selected from nonwoven fabric, knitted cotton, an activated carbon filter material, a metal mesh, and the like. 
     When the ventilation wall system  100  is in the air supply mode, the filter rack  41  is disposed on the heat exchanger frame  21 , and a side that is of the fan rack  11  and on which the air intake vent  1153  is disposed is disposed on the other side of the heat exchanger frame  21 . A position that is on the filter rack  41  and that is relative to the electric control module  30  is vacant, and the air filter  42  is not disposed at the position, so that the operator can view and control the working status. 
     When the ventilation wall system  100  is in the air suction mode, the filter rack  41  is disposed on the side that is of the fan rack  11  and on which the air intake vent  1153  is disposed, and a side that is of the fan rack  11  and on which the air exhaust vents are disposed is connected to the heat exchanger frame  21 . 
     The ventilation wall system further includes a flow equalizing frame  50 . In the air suction mode, the flow equalizing frame  50  is disposed between the fan module  10  and the heat exchanger module  20 . The flow equalizing frame  50  may increase a distance at which air is conveyed to the heat exchanger module by using the fan module, to equalize a flow of air exhausted from the fan module  10 , so that an air volume of air entering the heat exchanger module  20  remains relatively even. 
     A maintenance window  51  is disposed on the flow equalizing frame  50  at a position close to the electric control module  30 , and a maintenance door  52  is disposed on the maintenance window  51 . The maintenance door  52  is disposed at the maintenance window  51  in a detachable or rotatable mode, so that when the electronic control module  30  needs to be viewed or controlled, an operation may be performed by using the maintenance window  51 . 
     In some embodiments, the maintenance door  52  may be made of a transparent material, to facilitate observation of the electric control module  30 . 
     The ventilation wall system  100  further includes a connecting mechanism  60 . The connecting mechanism  60  is configured to connect the fan module  10 , the heat exchanger module  20 , the electric control module  30 , and the air filter module  40 . 
     The connecting mechanism  60  includes a corner piece  61  and a bolt  62 . The mounting rack  31  is disposed on the heat exchanger frame  21  by using the bolt  62 . 
     The corner piece  61  is disposed on the fan rack  11  of the fan module  10  and the heat exchanger frame  21  of the heat exchanger module  20 . Corner pieces  61  are oppositely disposed on front and rear sides of both the fan rack  11  and the heat exchanger frame  21 . The corner pieces  61  are disposed so that when the fan module  10  and the heat exchanger module  20  are installed, frames of the two modules may be basically brought together, to ensure that air does not flow out between the two modules. 
     When the ventilation wall system  100  is in the air supply mode, a side of the air intake vent  1153  of the fan rack  11  is connected to the heat exchanger frame  21  by using the corner piece  61 , and is fastened by using the bolt  62 . The filter rack  41  is fastened to a side that is of the heat exchanger frame  21  and that is away from the fan rack  11  by using the bolt  62 . 
     When the ventilation wall system  100  is in the air suction mode, two sides of the flow equalizing frame  50  are respectively connected to an air exhaust vent side of the fan rack  11  and the heat exchanger frame  21  by using corner pieces  61 . The filter rack  41  is fastened to a side that is of the fan rack  11  and that is away from the flow equalizing frame  50  by using the bolt  62 . 
     It may be understood that a sealing ring may be further disposed on the fan rack  11  and the heat exchanger frame  21 , to prevent air from flowing out from a connection point between the fan rack  11  and the heat exchanger frame  21 . 
     The connecting mechanism  60  further includes a terminal fastener  63 . The terminal fastener  63  is disposed on the heat exchanger frame  21 . The fan  12  includes a wiring terminal. The wiring terminal is mounted on the terminal fastener  63 , to facilitate a plug connection, and implement an electrical connection to the electric control module  30 . 
     In some embodiments, the electric control box  32  is electrically connected to the fan module  10  and the heat exchanger module  20  in a wiring manner. It may be understood that, in some embodiments, the electric control box  32  may alternatively be electrically connected to the fan module  10  and the heat exchanger module  20  in a wireless manner. Wireless communications units respectively disposed in the electric control module  30 , the fan module  10 , and the heat exchanger module  20  may transmit signals, so that a wiring setting problem does not need to be considered during assembly, and assembly convenience of the ventilation wall system  100  is further improved. 
     In an embodiment, the fan rack  11  and the heat exchanger frame  21  further include a foot cup  118  and a foot cup  211 . There are four foot cups  118  and four foot cups  211 . The four foot cups  118  are disposed in two rows on four corners at the bottom of the fan rack  11 . The four foot cups  211  are disposed in two rows on four corners at the bottom of the heat exchanger frame  21 . Openings are disposed on the foot cups  118  and the foot cups  211  to fasten the fan rack  11  and the heat exchanger frame  21  in a place. 
     It may be understood that, in some embodiments, a temperature sensing module, a humidity sensing module, and the like may be further disposed in the ventilation wall system  100 . The temperature sensing module and the humidity sensing module are electrically connected to the electric control module  30 , to display a temperature, humidity, and the like in the place by using the interaction mechanism  322  of the electric control module  30 . Processing manners for cases such as an excessively high temperature, excessively high humidity, or excessively low humidity may be further preset in the control system  321  of the electric control module  30 , to automatically adjust the working status of the ventilation wall system  100 . 
     The temperature sensing module and the humidity sensing module may be as a whole, such as a temperature and humidity sensor, or may be two separate mechanisms. The temperature sensing module and the humidity sensing module may be separately disposed on the air filter module  40 , to monitor a temperature of hot air entering the ventilation wall system  100 . It may be understood that the temperature sensing module and the humidity sensing module may alternatively be disposed at other positions as required. 
     In the ventilation wall system  100  described in this application, modular processing is performed on the fan module  10 , the heat exchanger module  20 , the electric control module  30 , and the air filter module  40 , to facilitate production. Only connection, fastening, and wiring are needed for assembly, so that installation is convenient, and efficiency is improved. During assembly, a module installation sequence may be adjusted based on different requirements, to switch between the air supply mode and the air suction mode, thereby quickly implementing adjustment, and improving adaptability of the ventilation wall system  100 . In addition, quantities and positions of the fan module  10  and the heat exchanger module  20  may be flexibly set based on different installation environments such as space and heat dissipation requirements, to maximize space utilization and meet the heat dissipation requirements. Modular setting enables any module to be quickly replaced and maintained. 
     An embodiment of this application further provides a data center. The data center may be configured to process data of commercial and operational organizations. 
     The data center includes, but is not limited to, a ventilation wall system  100 , a database, a file server, an application server, middleware, and other mechanisms. The ventilation wall system  100  is the ventilation wall system  100  in the foregoing embodiment. The ventilation wall system  100  is configured to dissipate heat for the database, the file server, the application server, the middleware, and the other mechanisms. 
     The data center provided in this embodiment of this application has a same technical effect as the ventilation wall system  100  provided in the foregoing embodiment, and can meet a heat dissipation requirement of the data center. 
     The foregoing description is merely specific implementations of this application, but is not intended to limit the protection scope of this application. Any variation or replacement within the technical scope disclosed in this application shall fall within the protection scope of this application.