CN116075108A - Internal and external cycle adjustable refrigeration system and data center - Google Patents

Abstract

The application discloses an internal and external circulation adjustable refrigerating system, which comprises a shell and a refrigerating module, wherein a partition plate is arranged in the shell and divides the shell into an equipment area and a machine room area; an air flow passage, an air outlet and an air inlet are arranged in the equipment area, and the refrigerating module is arranged in the air flow passage; the partition plate is provided with a first through hole and a second through hole; a double-pass selection mechanism is arranged in the first through hole and used for controlling the first through hole to be communicated with the air flow passage or the air outlet; the air inlet is provided with a switch valve, the switch valve is used for controlling whether the air inlet is communicated with the air flow channel, and the air inlet and the second through hole are positioned at two ends of the refrigeration module. The application can solve the problems of poor cooling effect and high electric energy consumption.

Description

Internal and external cycle adjustable refrigeration system and data center

technical field

The application relates to the field of data center equipment, in particular to a refrigeration system with adjustable internal and external cycles and a data center.

Background technique

In recent years, with the rapid development of data centers, the internal heat density has risen rapidly, coupled with the increasing pressure of energy conservation and emission reduction, traditional air conditioners for computer rooms are increasingly unsuitable for the requirements of data center computer rooms, especially the energy-saving requirements and cooling density. Requirements, the traditional computer room air conditioner products are composed of indoor unit and outdoor unit. The outdoor unit is relatively simple, only including condenser and condensing fan, while the indoor unit is more complex, including: compressor, evaporator, expansion valve, and control system. Among them, the indoor unit is generally made in the form of a cabinet, and is installed around the machine room or in a suitable place in the middle area of the machine room.

As the density of servers in the computer room increases, the heat generation increases, and the heat density of the computer room increases, the traditional computer room air conditioner is increasingly unable to meet the cooling needs of the computer room. For example, because the heat load of the data center is very large, sometimes even if the computer room is surrounded by air-conditioning systems, it still cannot meet the cooling capacity requirements, even if an air conditioner is installed in the middle of the Great consumption.

Contents of the invention

The purpose of this application is to provide a refrigeration system with adjustable internal and external circulation and a data center, which can solve the problems of poor cooling effect and large power consumption.

In order to achieve the above purpose, the present application provides a refrigeration system with adjustable internal and external circulation, which includes a housing and a refrigeration module. The housing is provided with a partition, and the partition divides the housing into an equipment area and a machine room. area; the equipment area is provided with an air channel, an air outlet and an air inlet, and the refrigeration module is installed in the air channel; the partition plate is provided with a first through hole and a second through hole, so The first through hole and the second through hole are respectively located at both ends of the air flow channel, and the second through hole communicates the air flow channel with the machine room area; There is a two-way selection mechanism, and the two-way selection mechanism is used to control the communication between the first through hole and the air flow channel or the air outlet; the air inlet is provided with a switch valve, and the switch valve is used to It is used to control whether the air inlet is in communication with the air passage, and the air inlet and the second through hole are located at both ends of the refrigeration module.

As a further improvement of the above technical solution: a machine room cabinet is provided in the machine room area, and the machine room cabinet divides the machine room into a hot aisle and a cold aisle, the first through hole communicates with the hot aisle, and the cold aisle The channel communicates with the second through hole.

As a further improvement of the above technical solution: the air outlet and the air inlet are located on different sides of the housing.

As a further improvement of the above technical solution: an air purifier is also provided in the air flow channel, and the air purifier is arranged between the refrigeration module and the air inlet for air purification of the incoming air.

As a further improvement of the above technical solution: a fan and a water baffle are further provided in the air passage, and the fan and the water baffle are located between the refrigeration module and the second through hole.

As a further improvement of the above technical solution: the refrigeration module includes a mechanical refrigeration device and a cooling coil assembly arranged side by side; a first temperature sensor is provided in the cold aisle, and the first temperature sensor is located in the cold aisle away from the end of the second through hole.

As a further improvement of the above technical solution: a second temperature sensor and a rain sensor are connected to the outside of the casing, and the opening and closing of the two-way selection mechanism and the switching valve are judged by the second temperature sensor and the rain sensor.

As a further improvement of the above technical solution: the two-way selection mechanism includes a lateral movement mechanism and a selection plate, and the lateral movement mechanism is used to drive the selection plate to slide in the first through hole.

As a further improvement of the above technical solution: a chute is provided in the first through hole, and one end of the selection plate is slidably connected in the chute; the lateral movement mechanism includes a motor and a screw, and the motor is fixed on In the partition, the screw is rotatably connected in the chute, the screw is drivingly connected to the motor and screwed to the selection plate.

In order to achieve the above object, another aspect of the present application provides a data center, including the above-mentioned external circulation adjustable refrigeration system, wherein the housing adopts a container.

It can be seen that the technical solution provided by the present application can control the first through hole to communicate with the air flow channel or the air outlet by setting a two-way selection mechanism, and then cooperate with the switch valve to control the opening and closing of the air inlet, which can be adjusted according to the external environment (external environment). The environment includes the external air temperature and whether it is rainy or not) to switch the internal circulation refrigeration or external circulation refrigeration in the casing to cool down, and save power while ensuring the cooling effect inside the casing; at the same time, in the air flow channel There is an air purifier inside to purify the incoming air during external circulation, avoiding the harm of impurities in the air to the internal machine room, and ensuring the normal operation of the machine room; at the same time, the refrigeration module uses a mechanical refrigeration device and a cooling coil assembly. According to the detection signal of the first temperature sensor, a mechanical refrigeration device is selected to ensure the cooling effect.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, other drawings can also be obtained based on these drawings without creative effort.

Fig. 1 is a schematic diagram of the external circulation structure of an internal and external circulation adjustable refrigeration system in an embodiment provided by the present application;

Fig. 2 is a schematic diagram of the external circulation structure of a refrigeration system with adjustable internal and external circulation in an embodiment provided by the present application;

Fig. 3 is a schematic axonometric view of a partition described in an embodiment provided by the present application;

Fig. 4 is a partial structural schematic diagram of Fig. 3;

In the figure: 1. shell; 11. machine room area; 12. equipment area; 121. air flow channel; 122. air outlet; 123. air inlet; 2 through holes; 3. Computer room cabinet; 31. Hot aisle; 32. Cold aisle; 321. First temperature sensor; 4. Refrigeration module; ; 6, switch valve; 7, air purifier; 71, fan; 72, water retaining plate; 8, second temperature sensor; 9, rain sensor.

Detailed ways

In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings. Terms such as "upper", "upper", "lower", "below", "first end", "second end", "one end", "another end" and the like used in the present application to express relative positions in space are intended The relationship of one element or feature to another element or feature as shown in the figures is described for ease of illustration. The terms of spatial relative position may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Furthermore, the terms "mounted", "disposed", "provided with", "connected", "slidably connected", "fixed", "socketed" are to be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediary, or two devices, components or Internal connectivity between components. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application according to specific situations.

As the density of servers in the computer room increases, the heat generation increases, and the heat density of the computer room increases, the traditional computer room air conditioner is increasingly unable to meet the cooling needs of the computer room. For example, because the heat load of the data center is very large, sometimes even if the computer room is surrounded by air-conditioning systems, it still cannot meet the cooling capacity requirements, even if an air conditioner is installed in the middle of the Great consumption. Therefore, there is an urgent need for an internal and external cycle adjustable refrigeration system and data center, which can solve the problems of poor cooling effect and large power consumption.

The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the implementations described in this application are only some of the implementations in this application, not all of them. Based on the implementation manners in this application, all other implementation manners obtained by those skilled in the art without creative efforts shall fall within the scope of protection of this application.

As shown in Figures 1 to 4, in an achievable implementation, in order to achieve the above purpose, a refrigeration system with adjustable internal and external cycles is provided, including a housing 1 and a refrigeration module 4, and the housing 1 is equipped with The partition 2, the partition 2 divides the inside of the housing 1 into an equipment area 12 and a machine room area 11, wherein the equipment area 12 is used to place refrigeration equipment, and the machine room area 11 is used to place machine room equipment; the equipment area 12 is provided with air flow 121, air exhaust port 122 and air inlet 123, the refrigeration module 4 is installed in the air flow channel 121; the air flow channel 121 is used to flow through the passage of circulating air, and the air exhaust port 122 is used to open the external circulation, the hot air from here The air inlet 123 is used to enter the housing 1 from the cold air outside when the external circulation is turned on.

The partition plate 2 is provided with a first through hole 21 and a second through hole 22, the first through hole 21 is used for the cooling air circulation outlet in the machine room area 11, and the second through hole 22 is used for the heat dissipation air in the machine room area 11. The circulation inlet, specifically, the first through hole 21 and the second through hole 22 are respectively located at both ends of the air flow channel 121 and the second through hole 22 communicates the air flow channel 121 with the machine room area 11;

In order to realize the switching action of the two heat dissipation modes of internal circulation and external circulation, the present application is provided with a double-way selection mechanism 5 in the first through hole 21, and the double-way selection mechanism 5 is used to control the first through hole 21 and the air flow channel 121 Or the air outlet 122 is connected; at the same time, an on-off valve 6 is provided at the air inlet 123, and the on-off valve 6 is used to control whether the air inlet 123 is connected to the air flow channel 121, and the air inlet 123 and the second through hole 22 are located in the refrigeration module 4 ends.

In specific implementation scenarios,

When it is necessary to carry out heat dissipation internal circulation action, specifically referring to FIG. 2 , at this time, the two-way selection mechanism 5 controls the first through hole 21 to communicate with the air flow channel 121 (the first through hole 21 is naturally closed with the air outlet 122), and the switch The valve 6 closes the air inlet 123. At this time, the air circulates between the machine room area 11 and the equipment area 12. During the recirculation process, the cooling module 4 cools the passing air.

When it is necessary to perform heat dissipation external circulation action, specifically referring to FIG. 1 , at this time, the two-way selection mechanism 5 controls the first through hole 21 to communicate with the air outlet 122 (the first through hole 21 is naturally closed with the air flow channel 121), The switch valve 6 opens the air inlet 123. At this time, the cold air enters the air flow channel 121 from the air inlet 123, and enters into the machine room area 11 through the second through hole 22 for heat exchange to dissipate heat from the equipment in the machine room. The heated air flows out to the outside of the housing 1 through the first through hole 21 and the air outlet 122 .

The computer room area 11 is specifically arranged, and there is a computer room cabinet 3 inside it. The computer room cabinet 3 is usually composed of a plurality of cabinets arranged in a straight line; the computer room cabinet 3 divides the computer room area 11 into a hot aisle 31 and a cold aisle 32. The first through hole 21 communicates with the hot aisle 31, and the cold aisle 32 communicates with the second through hole 22, so that the computer room area 11 is divided into two air passages, the hot aisle and the cold aisle, so as to facilitate the uniform heat dissipation of the computer room cabinet 3.

Preferably, the air outlet 122 and the air inlet 123 are located on different sides of the housing 1 , so as to prevent the air exhaust and air inlet of the housing 1 from being mixed together and affect the overall heat dissipation effect.

Preferably, when the external circulation is adopted, the external air will directly enter the housing 1 to directly dissipate heat from the equipment in the equipment room cabinet 3. In this application, an air cleaner 7 is also provided in the air passage 121, and the air cleaner 7 is arranged between the refrigeration module 4 and the air inlet 123, and is used for air purification of the incoming air. Of course, the air purifier 7 can also be located between the first through hole 21 and the refrigeration module 4 at the same time, and the air purifier can also be used when the air needs to be purified during the internal circulation process.

In the present application, a fan 71 and a water baffle 72 are also provided in the air passage 121, and their positions are set such that the fan 71 and the water baffle 72 are located between the refrigeration module 4 and the second through hole 22, wherein the fan 71 can Adjust the power to adjust the air circulation speed according to the actual situation; the water baffle 72 is optional and used in areas with high humidity in the air to prevent the humidity from affecting the normal use of the equipment in the cabinet in the computer room.

The refrigeration module 4 is mainly used to exchange heat and cool the hot air passing through it into cold air, so as to facilitate the heat dissipation of the machine room cabinet. At present, there are various refrigeration modules 4 on the market. This application will consider again to ensure refrigeration effect, the refrigeration module 4 includes a mechanical refrigeration device and a cooling coil assembly arranged side by side;

Moreover, a first temperature sensor 321 is provided in the cold aisle 32, and the actual temperature situation in the cold aisle 32 is detected by the first temperature sensor 321 to determine the use of the mechanical refrigeration device and the cooling coil assembly. In the internal circulation, if the temperature displayed by the first temperature sensor 321 is within the predetermined temperature range, the cooling coil assembly is preferred. When the cooling coil assembly is difficult to achieve the cooling effect, the mechanical refrigeration device is used; in the external circulation, the first temperature If the temperature displayed by the sensor 321 is within the predetermined temperature range, external air is used for cooling, and secondly, the cooling coil assembly and the mechanical refrigeration device are turned on in sequence.

Moreover, the first temperature sensor 321 is located at the end of the cold aisle 32 away from the second through hole 22 , this position is farthest from the air inlet, and is the best temperature judgment standard.

In order to judge when to adopt the external circulation heat dissipation and when to adopt the internal circulation heat dissipation, the application connects a second temperature sensor 8 and a rain sensor 9 outside the casing 1, and judges the two-way selection through the second temperature sensor 8 and the rain sensor 9 The opening and closing of the mechanism 5 and the switching valve 6, the specific position: when it is rainy, the internal circulation is adopted; when it is not rainy and the outside temperature is lower than the predetermined value, the external circulation is adopted.

There are many forms of the two-way selection mechanism 5 , among which the two-way selection mechanism 5 in this application includes a lateral movement mechanism and a selection plate 51 , and the lateral movement mechanism is used to drive the selection plate 51 to slide in the first through hole 21 . And the first through hole 21 is provided with a chute, and one end of the selection plate 51 is slidably connected in the chute; the lateral movement mechanism includes a motor 52 and a screw 53, the motor 52 is fixed in the partition plate 2, and the screw 53 is rotatably connected in the chute Inside, the screw rod 53 is drivingly connected with the motor 52 and the screw rod 53 is screwed with the selection plate 51 . The motor 52 is used to drive the screw rod 53 to rotate, thereby driving the selection plate 51 to slide in the chute, and then select and switch between the air flow channel 121 and the air outlet 122 .

Based on the same inventive concept, the present application also provides a data center, including the above-mentioned external circulation adjustable refrigeration system, wherein the housing 1 adopts a container.

It can be seen that the technical solution provided by the present application can control the first through hole to communicate with the air flow channel or the air outlet by setting a two-way selection mechanism, and then cooperate with the switch valve to control the opening and closing of the air inlet, which can be adjusted according to the external environment (external environment). The environment includes the external air temperature and whether it is rainy or not) to switch the internal circulation refrigeration or external circulation refrigeration in the casing to cool down, and save power while ensuring the cooling effect inside the casing; at the same time, in the air flow channel There is an air purifier inside to purify the incoming air during external circulation, avoiding the harm of impurities in the air to the internal machine room, and ensuring the normal operation of the machine room; at the same time, the refrigeration module uses a mechanical refrigeration device and a cooling coil assembly. According to the detection signal of the first temperature sensor, a mechanical refrigeration device is selected to ensure the cooling effect.

The above descriptions are only preferred embodiments of the application, and are not intended to limit the application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the application shall be included in the protection of the application. within range.

Claims (10)

1. An adjustable refrigeration system with internal and external circulation, characterized in that it comprises a housing (1) and a refrigeration module (4), the housing (1) is provided with a partition (2), and the partition (2 ) dividing the housing (1) into an equipment area (12) and a machine room area (11); The equipment area (12) is provided with an air flow channel (121), an air outlet (122) and an air inlet (123), and the refrigeration module (4) is installed in the air flow channel (121); The partition plate (2) is provided with a first through hole (21) and a second through hole (22), and the first through hole (21) and the second through hole (22) are respectively located in the air Both ends of the flow channel (121) and the second through hole (22) communicate the air flow channel (121) with the machine room area (11); The first through hole (21) is provided with a two-way selection mechanism (5), and the two-way selection mechanism (5) is used to control the first through hole (21) and the air channel (121) Or the air outlet (122) is connected; The air inlet (123) is provided with a switch valve (6), and the switch valve (6) is used to control whether the air inlet (123) communicates with the air flow channel (121), and the air inlet (123) and the second through hole (22) are located at both ends of the refrigeration module (4). 2. The internal and external cycle adjustable refrigeration system according to claim 1, characterized in that a machine room cabinet (3) is provided in the machine room area (11), and the machine room cabinet (3) separates the machine room area (11 ) is divided into a hot passage (31) and a cold passage (32), the first through hole (21) communicates with the hot passage (31), and the cold passage (32) communicates with the second through hole (22) ) connected. 3. The refrigeration system with adjustable internal and external circulation according to claim 1, characterized in that, the air outlet (122) and the air inlet (123) are located on different sides of the casing (1). 4. The internal and external cycle adjustable refrigeration system according to claim 1, characterized in that, an air cleaner (7) is also provided in the air passage (121), and the air cleaner (7) is arranged in The space between the refrigeration module (4) and the air inlet (123) is used for air purification of the incoming air. 5. The internal and external cycle adjustable refrigeration system according to claim 1 or 4, characterized in that, the air flow channel (121) is also provided with a fan (71) and a water baffle (72), and the fan ( 71) and the water baffle (72) are located between the refrigeration module (4) and the second through hole (22). 6. The internal and external cycle adjustable refrigeration system according to claim 2, characterized in that, the refrigeration module (4) includes a mechanical refrigeration device and a cooling coil assembly arranged side by side; A first temperature sensor (321), and the first temperature sensor (321) is located in the cold aisle (32) at an end away from the second through hole (22). 7. The internal and external circulation adjustable refrigeration system according to claim 1, characterized in that, a second temperature sensor (8) and a rain sensor (9) are connected to the outside of the housing (1), and the second temperature sensor (8) and the rain sensor (9) judge the opening and closing of the two-way selection mechanism (5) and the switch valve (6). 8. The internal and external cycle adjustable refrigeration system according to claim 1, characterized in that, the two-way selection mechanism (5) includes a lateral movement mechanism and a selection plate (51), and the lateral movement mechanism is used to drive the The selection plate (51) slides in the first through hole (21). 9. The refrigeration system with adjustable internal and external circulation according to claim 8, characterized in that a slide groove is provided in the first through hole (21), and one end of the selection plate (51) is slidably connected to the slide In the slot; the lateral movement mechanism includes a motor (52) and a screw (53), the motor (52) is fixed in the partition (2), and the screw (53) is rotatably connected in the chute , the screw rod (53) is drivingly connected to the motor (52) and the screw rod (53) is screwed to the selection plate (51). 10. A data center, characterized by comprising the external circulation adjustable refrigeration system according to any one of claims 1 to 9, wherein the housing (1) adopts a container.

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