CN220457770U - Machine room cooling system - Google Patents

Abstract

The utility model relates to a cooling control technique in the field of heating ventilation and air conditioning, and provides a machine room cooling system, the structure of which comprises a machine room, an air conditioner room and a control system, wherein the air conditioner room is arranged on at least one side of the machine room, a plurality of rows of cabinets are arranged in the machine room, two rows of cabinets are a group, a sealed closed cold channel is enclosed between every two rows of cabinets, an open hot channel is arranged between two adjacent groups of cabinets, an air inlet communicated with the closed cold channel is arranged on one side of the cabinet, an air outlet communicated with the open hot channel is arranged on the other side of the cabinet, a plurality of air conditioners are arranged in the air conditioner room, an underfloor air supply channel is arranged below the machine room and the air conditioner room, a cold air outlet of the air conditioner is communicated with the underfloor air supply channel, an air return port is arranged between the machine room and the air conditioner room, the control system comprises a controller, the controller is externally connected with central control equipment, and the air conditioner is connected with the controller; the temperature balancing control method is suitable for temperature balancing control in large-area multi-cabinet places.

Description

Machine room cooling system

Technical Field

The application relates to a cooling control technology in the field of heating ventilation and air conditioning, in particular to a machine room cooling system.

Background

With the development of the information industry, more and more data centers are built around the country. Because various types of equipment can generate a large amount of heat due to power consumption in the operation process of the data center machine room, and the generated heat is not uniform, in order to ensure that the electronic equipment normally operates at a proper temperature, the heat needs to be efficiently and stably conveyed out.

Currently, in the operation practice of the data machine room, two heat dissipation schemes are selected, one is an air cooling mode and the other is a liquid cooling mode. The construction and operation costs of the air cooling mode are relatively low, and the air cooling mode is widely applied to a data center machine room. The traditional air supply mode cannot perform targeted temperature control and heat dissipation on local hot spots, so that a precise air conditioner balanced cooling system capable of performing temperature balanced control on large-area and multi-cabinet places is needed to be proposed.

Disclosure of Invention

In order to solve one of the technical defects, an embodiment of the application provides a machine room cooling system.

The application provides a machine room cooling system, which comprises a machine room, an air conditioner room and a control system, wherein the air conditioner room is arranged on at least one side of the machine room;

a plurality of rows of cabinets are arranged in the machine room, two rows of cabinets are in one group, a sealed closed cold channel is enclosed between two rows of cabinets of each group, an open hot channel is arranged between two adjacent groups of cabinets, an air inlet communicated with the closed cold channel is arranged on one side of the cabinet, and an air outlet communicated with the open hot channel is arranged on the other side of the cabinet;

a plurality of air conditioners for supplying cold air are arranged in the air conditioner room;

the air conditioner is characterized in that an underfloor air supply channel which is communicated is arranged below the machine room and the air conditioner, a cold air outlet of the air conditioner is communicated with the underfloor air supply channel, a closed cold channel is communicated with the underfloor air supply channel through a plurality of air supply outlets, and an air return opening which enables an open hot channel to be communicated with the air conditioner is arranged between the machine room and the air conditioner;

the control system comprises a controller, the controller is externally connected with central control equipment through a communication interface, and the air conditioner is connected with the controller through the communication interface.

Further, a plurality of air supply outlets are provided with quick electric air quantity regulating valves which are connected with the controller.

Further, a plurality of first temperature sensors are uniformly arranged on the position, facing the air supply port, in the closed cold channel, and the first temperature sensors are connected with the controller.

Further, a plurality of pressure sensors and second temperature sensors are arranged in an array in the underfloor air supply channel, and the pressure sensors and the second temperature sensors are connected with the controller.

Further, a constant humidity machine is arranged in the air conditioner room, an air outlet of the constant humidity machine is communicated with an underfloor air supply channel, the constant humidity machine is connected with a controller, and humidity sensors are formed by installing humidity sensitive elements in the first temperature sensor and the second temperature sensor.

Further, a differential pressure sensor is arranged between the closed cold channels on the upper side and the lower side of the air supply opening and the underfloor air supply channel, and the differential pressure sensor is connected with the controller.

Further, a manual air quantity regulating valve is arranged at the joint of the underfloor air supply channel and the air supply outlet.

Further, an insulating layer is paved on the bottom surface of the underfloor air supply channel.

Further, the controller is connected with a diversion fan, and the installation position of the diversion fan is an air supply opening, an air inlet, an air outlet or an air return opening.

Preferably, the plurality of air outlets are uniformly arranged along the extending direction of the closed cold channel.

The machine room cooling system provided in the embodiment of the application has the following advantages:

1. the controller is connected with the rapid electric air quantity regulating valve and the air conditioner, and can realize accurate and rapid regulation of local air quantity through comprehensive regulation and control of the opening degree of the rapid electric air quantity regulating valve, the starting and stopping quantity, the air outlet temperature and the air outlet quantity of the precise air conditioner, so as to ensure the temperature and pressure balance of each air outlet;

2. the pressure sensor monitoring is arranged at multiple positions of the underfloor air supply channel, so that the pressure change of the air supply opening of the closed cold channel of each region can be accurately monitored, and the air supply volume of the precise air conditioner can be timely adjusted;

3. the tail end of the air supply port is straight, namely, a manual air quantity regulating valve is further arranged at the joint of the underfloor air supply channel and the air supply port, and the manual air quantity regulating valve is added with a static air pressure balance debugging function of the system, so that the setting of the initial state of the air supply port is realized;

4. the temperature and humidity sensor is arranged in the closed cold channel, so that the opening of the rapid electric air quantity regulating valve can be corrected in time according to the temperature and humidity change of the closed cold channel, the air quantity can be rapidly regulated in real time, and the rapid response of the temperature and humidity load change of the closed cold channel is ensured.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:

fig. 1 is a schematic structural diagram of a cooling system for a machine room according to the present application;

FIG. 2 is a schematic view of a sectional structure in the A-A direction of FIG. 1;

FIG. 3 is a schematic view showing a cross-sectional structure in the B-B direction of FIG. 1;

in the figure: 1 is a machine room, 2 is an air conditioner, 3 is a cabinet, 4 is an air conditioner, 5 is an underfloor air supply channel, 6 is a closed cold channel, 7 is an open hot channel, 8 is an air supply port, 9 is an air inlet, 10 is an air outlet, 11 is an air return port, 12 is a diversion fan, 13 is a rapid electric air volume regulating valve, 14 is a first temperature sensor, 15 is a differential pressure sensor, 16 is a controller, 17 is a pressure sensor, 18 is a second temperature sensor, 19 is a constant humidity machine, 20 is a manual air volume regulating valve, and 21 is a heat preservation layer.

Detailed Description

In order to make the technical solutions and advantages of the embodiments of the present application more apparent, the following detailed description of exemplary embodiments of the present application is given with reference to the accompanying drawings, and it is apparent that the described embodiments are only some of the embodiments of the present application and not exhaustive of all the embodiments. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other.

The embodiment of the application provides a machine room cooling system, as shown in fig. 1-3, which comprises a machine room 1, an air conditioner room 2 and a control system, wherein the air conditioner room 2 is arranged on at least one side of the machine room 1, the number of the air conditioner rooms 2 is not limited, the machine room 1 can be adjusted according to the size, the layout and the actual cooling requirement of the machine room 1, the air conditioner rooms 2 can be arranged on one side of the machine room 1, and the air conditioner rooms 2 can be arranged on a plurality of sides, as shown in fig. 1-2, one air conditioner room 2 is arranged on the opposite sides of the machine room 1, so that cold air flows to an underfloor air supply channel 5 from two sides, the cold air quantity of the underfloor air supply channel 5 is increased, and the two ends of a row of machine cabinets have good heat dissipation effect;

a plurality of rows of cabinets 3 are arranged in the machine room 1, two rows of cabinets 3 are in a group, a sealed closed cold channel 6 is enclosed between the two rows of cabinets 3 of each group, an open hot channel 7 is arranged between two adjacent groups of cabinets 3, an air inlet 9 communicated with the closed cold channel 6 is arranged on one side of the cabinet 3, an air outlet 10 communicated with the open hot channel 7 is arranged on the other side of the cabinet 3, cold air in the closed cold channel 6 enters the cabinet 3 through the air inlet 9 to exchange heat with the machine body of the machine, and then the hot air enters the open hot channel 7 from the air outlet 10, so that the interior of the cabinet 3 is continuously cooled; the closed cold channel 6 can adopt a sealing plate and a sealing piece to seal the space between the two rows of cabinets 3 in a surrounding way, so that cold air in the closed cold channel only enters the cabinets 3 through the air inlet 9, thereby realizing the effective utilization rate of the cold air, and also can adopt any other structure capable of realizing the function;

a plurality of air conditioners 4 for supplying cold air are arranged in the air conditioner room 2, and the air conditioners 4 are preferably special precision air conditioners for machine rooms, which can fully meet the environmental condition requirements of the machine rooms;

the air conditioner is characterized in that an underfloor air supply channel 5 is arranged below the machine room 1 and the air conditioner room 2, a cold air outlet of the air conditioner 4 is communicated with the underfloor air supply channel 5, the air conditioner 4 continuously supplies cold air to the underfloor air supply channel 5 during operation according to a system command, a closed cold channel 6 is communicated with the underfloor air supply channel 5 through a plurality of air supply openings 8, the closed cold channel 6 and the underfloor air supply channel 5 form a pressure difference along with the continuous increase of cold air in the underfloor air supply channel 5, the cold air of the underfloor air supply channel 5 naturally flows into the closed cold channel 6 from the air supply openings 8, a return air inlet 11 for communicating an open hot channel 7 with the air conditioner room 2 is arranged between the machine room 1 and the air conditioner room 2, and hot air for completing heat exchange in the machine room 1 can flow back to the air conditioner room 2 through the return air inlet 11.

The control system comprises a controller 16, wherein the controller 16 is a DDC controller or a PLC controller, and is provided with a network interface based on Ethernet, remote communication and control can be realized, the controller 16 is externally connected with central control equipment through a communication interface, an air conditioner 4 is connected with the controller 16 through the communication interface, the air conditioner 4 has a group control function, and the air conditioner can be started or stopped under the control of the controller 16, or the air supply temperature, the air supply air quantity and the like can be adjusted.

The temperature equalization control method is suitable for temperature equalization control in large-area multi-cabinet places, and the working principle and the working process are as follows:

the air conditioner 4 supplies cold air to the underfloor air supply channel 5 according to the command of the controller 16, the closed cold channel 6 and the underfloor air supply channel 5 form a pressure difference, the cold air continuously flows into the closed cold channel 6 from the air supply opening 8, then enters the cabinet 3 from the air inlet 9 to cool the cabinet, hot air flows into the open heat release channel 7 from the air outlet 10, finally flows back into the air conditioner room 2 through the air return opening 11, and in the air circulation process, the controller 16 can adjust the starting and stopping quantity of the air conditioner 4, the air supply quantity and the air supply temperature of each air conditioner 4 according to the acquired temperature and pressure, so that the whole system can realize temperature balance control in a large area and multiple cabinet places.

Further, a rapid electric air volume adjusting valve 13 is arranged on the air supply outlet 8, and the rapid electric air volume adjusting valve 13 is connected with a controller 16. The rapid electric air volume adjusting valves 13 can be arranged on the air supply outlets 8 of the two ends and the middle area of each closed cold channel 3, the rapid electric air volume adjusting valves 13 can be arranged on each air supply outlet 8, the rapid electric air volume adjusting valves can be uniformly arranged, the distribution density can be increased in the area with higher heat productivity of the cabinet according to the requirement, and the specific distribution can be randomly adjusted according to the field requirement. The controller 16 can realize accurate and rapid adjustment of local air quantity by adjusting the opening of the rapid electric air quantity adjusting valve and by matching with the comprehensive adjustment and control of the start-stop quantity, the air outlet temperature and the air outlet quantity of the air conditioner, so as to ensure the temperature and the pressure balance of each air outlet.

Further, a plurality of first temperature sensors 14 are uniformly arranged on the position, facing the air supply port 8, in the closed cold channel 6, and the first temperature sensors 14 are connected with a controller 16.

Further, a plurality of pressure sensors 17 and second temperature sensors 18 are arranged in an array in the underfloor air supply channel 5, and the pressure sensors 17 and the second temperature sensors 18 are connected with the controller 16, as shown in fig. 1, which includes one of the distribution embodiments of the pressure sensors 17 and the second temperature sensors 18. In this embodiment, the pressure sensor 17 and the second temperature sensor 18 are provided in the underfloor air supply duct 5.

Further, a constant humidity machine 19 is arranged in the air conditioner room 2, an air outlet of the constant humidity machine 19 is communicated with the underfloor air supply channel 5, the constant humidity machine 19 is connected with the controller 16, humidity sensors are formed by humidity sensitive elements arranged in the first temperature sensor 14 and the second temperature sensor 18, the controller 16 receives system internal humidity information fed back by the first temperature sensor 14 and the second temperature sensor 18, the constant humidity machine 18 is controlled to convey air with certain humidity to the underfloor air supply channel 5 according to system requirements, and humidity adjustment is performed in the machine room 1 along with cold air flow so as to ensure that the humidity is constant.

Further, a differential pressure sensor 15 is arranged between the closed cold channels 6 on the upper side and the lower side of the air supply opening 8 and the underfloor air supply channel 5, and the differential pressure sensor 15 is connected with a controller 16 to ensure stable system air supply.

Further, a manual air quantity adjusting valve 20 is further arranged at the joint of the underfloor air supply channel 5 and the air supply opening 8, and the manual air quantity adjusting valve 20 is added with a static air pressure balance debugging function of the system, so that the setting of the initial state of the air supply opening is realized.

Further, the heat insulation layer 21 is paved on the bottom surface of the underfloor air supply channel 5, so that the cooling capacity loss is reduced.

Further, the controller 16 is connected with a guiding fan 12, and the installation position of the guiding fan 12 is an air supply outlet 8, an air inlet 9, an air outlet 10 or an air return 11. In the application, more accurate air flow guiding can be performed through the guide fans 12 in the whole cooling system, the installation positions of the guide fans 12 are preferably arranged on the air inlets 9 or the air outlets 10, so that the air flow guiding is accurate to each cabinet 3, and the controller 16 controls the guide fans 12 aiming at the temperature feedback information of the single cabinet 3, so that the cold air flow flux is guided to be efficiently cooled.

Preferably, the plurality of air outlets 8 are uniformly arranged along the extending direction of the closed cold channel 6, so as to realize uniform cold air feeding into the closed cold channel 6.

When the method is implemented, the closed cold channel monitoring point position and the control point position channel can be designed by combining on-site installation conditions, the temperature and humidity change in the closed cold channel is detected, the rapid electric regulation air valve is controlled, the air supply quantity change in each closed cold channel is regulated, the temperature and humidity of each closed cold channel are accurately controlled, the real-time acquisition of temperature and humidity demand data in the closed cold channel is realized, the air supply quantity is effectively regulated in real time according to the temperature and humidity demand of the cold channel, and the intelligent control of the accurate air supply system of the closed cold channel is realized.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate an orientation or positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.

In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may communicate with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

While preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the application.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims and the equivalents thereof, the present application is intended to cover such modifications and variations.

Claims (10)

1. A computer lab cooling system, its characterized in that: the intelligent air conditioner comprises a machine room (1), an air conditioner room (2) and a control system, wherein the air conditioner room (2) is arranged on at least one side of the machine room (1);

a plurality of rows of cabinets (3) are arranged in the machine room (1), two rows of cabinets (3) are in a group, a sealed closed cold channel (6) is enclosed between the two rows of cabinets (3) of each group, an open hot channel (7) is arranged between two adjacent groups of cabinets (3), an air inlet (9) communicated with the closed cold channel (6) is formed in one side of the cabinet (3), and an air outlet (10) communicated with the open hot channel (7) is formed in the other side of the cabinet (3);

a plurality of air conditioners (4) for supplying cold air are arranged in the air conditioner room (2);

an underfloor air supply channel (5) communicated with the machine room (1) and the air-conditioning room (2) is arranged below the machine room, a cold air outlet of the air-conditioning room (4) is communicated with the underfloor air supply channel (5), a closed cold channel (6) is communicated with the underfloor air supply channel (5) through a plurality of air supply outlets (8), and an air return opening (11) which enables an open hot channel (7) to be communicated with the air-conditioning room (2) is arranged between the machine room (1) and the air-conditioning room (2);

the control system comprises a controller (16), the controller (16) is externally connected with central control equipment through a communication interface, and the air conditioner (4) is connected with the controller (16) through the communication interface.

2. A machine room cooling system according to claim 1, characterized in that: the air supply outlet (8) is provided with a rapid electric air quantity regulating valve (13), and the rapid electric air quantity regulating valve (13) is connected with the controller (16).

3. A machine room cooling system according to claim 1, characterized in that: a plurality of first temperature sensors (14) are uniformly arranged on the position, facing the air supply port (8), in the closed cold channel (6), and the first temperature sensors (14) are connected with a controller (16).

4. A machine room cooling system according to claim 3, characterized in that: a plurality of pressure sensors (17) and second temperature sensors (18) are arranged in the underfloor air supply channel (5) in an array mode, and the pressure sensors (17) and the second temperature sensors (18) are connected with the controller (16).

5. A machine room cooling system according to claim 4, characterized in that: the indoor unit of the air conditioner (2) is internally provided with a constant humidity machine (19), an air outlet of the constant humidity machine (19) is communicated with an underfloor air supply channel (5), the constant humidity machine (19) is connected with a controller (16), and humidity sensors are formed by humidity sensitive elements in the first temperature sensor (14) and the second temperature sensor (18).

6. A machine room cooling system according to claim 1, characterized in that: a differential pressure sensor (15) is arranged between the closed cold channels (6) on the upper side and the lower side of the air supply opening (8) and the underfloor air supply channel (5), and the differential pressure sensor (15) is connected with a controller (16).

7. A machine room cooling system according to claim 1, characterized in that: the connection part of the underfloor air supply channel (5) and the air supply port (8) is also provided with a manual air quantity regulating valve (20).

8. A machine room cooling system according to claim 1, characterized in that: an insulating layer (21) is paved on the bottom surface of the underfloor air supply channel (5).

9. A machine room cooling system according to claim 1, characterized in that: the controller (16) is connected with a guide fan (12), and the installation position of the guide fan (12) is an air supply opening (8), an air inlet (9), an air outlet (10) or an air return opening (11).

10. A machine room cooling system according to claim 1, characterized in that: the plurality of air supply outlets (8) are uniformly arranged along the extending direction of the closed cold channel (6).