CN212463891U

CN212463891U - Cabinet and data machine room cooling system

Info

Publication number: CN212463891U
Application number: CN202021552838.9U
Authority: CN
Inventors: 闫健
Original assignee: China United Network Communications Group Co Ltd
Current assignee: China United Network Communications Group Co Ltd
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2021-02-02
Anticipated expiration: 2030-07-30

Abstract

The utility model discloses a rack and data computer lab cooling system relates to rack technical field to the technical problem of centralized refrigerated inefficiency among the solution correlation technique. The utility model provides a cabinet, which comprises a cabinet body and a plurality of servers arranged in the cabinet body, wherein the cabinet body is also internally provided with refrigeration equipment, an air inlet of the refrigeration equipment is communicated to the outside of the cabinet body through an air inlet pipeline, and an air outlet of the refrigeration equipment is positioned in the cabinet body; the air inlets of the servers are located inside the cabinet body, and the air outlet of each server is communicated to the outside of the cabinet body through an exhaust pipeline. The utility model discloses can be used to the rack refrigeration.

Description

Cabinet and data machine room cooling system

Technical Field

The utility model relates to an air conditioning technology field especially relates to a rack and data computer lab cooling system.

Background

With the innovation and development of distributed computing architectures such as artificial intelligence, cloud computing and big data, the data machine room serving as an information infrastructure bears more and more traffic. The heat productivity of the server and other devices in the machine room is large, and continuous cooling is needed all the year round.

At present, a refrigeration device is installed in a machine room, and a plurality of cabinets in the machine room can be cooled by the refrigeration device, namely, a centralized refrigeration mode is adopted. However, the inlet and outlet directions of server equipment of different manufacturers are not unified, the distribution positions of air inlets and air outlets of a plurality of servers in the cabinet are not unified, and the phenomena of uneven air supply, mixed cold air and hot air flows and the like easily occur in the machine room, so that the refrigeration efficiency of the refrigeration equipment is low.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides a rack and data computer lab cooling system for concentrate the technical problem that refrigeration formula refrigeration inefficiency in the solution correlation technique.

In order to achieve the above object, in a first aspect, an embodiment of the present invention provides a cabinet, including a cabinet body and a plurality of servers disposed in the cabinet body, wherein a refrigeration device is further disposed in the cabinet body, an air inlet of the refrigeration device is communicated to an outside of the cabinet body through an air inlet pipeline, and an air outlet of the refrigeration device is located inside the cabinet body; the air inlets of the servers are located inside the cabinet body, and the air outlet of each server is communicated to the outside of the cabinet body through an exhaust pipeline.

In a second aspect, the embodiment of the utility model provides a data computer lab cooling system, including off-premises station and foretell rack, the off-premises station passes through feed liquor pipe and muffler and refrigeration plant intercommunication to form heat transfer loop.

The embodiment of the utility model provides a rack and data computer lab cooling system sets up refrigeration plant at this internal setting of rack of every rack, and refrigeration plant is located the inside of rack, is close to the source (server) that generates heat more, can utilize the cold air of this internal refrigeration plant output of rack to carry out the effective cooling of the near-end of pertinence to a plurality of servers in it, and refrigeration efficiency is higher. In addition, the air outlets of a plurality of servers in the cabinet body are communicated to the outside of the cabinet body through the air exhaust pipeline, so that the phenomenon of mixing of cold air and hot air is avoided, and the refrigeration efficiency is improved. Specifically, the cooling is realized in the leading-in refrigeration plant of the outside gas of rack body through the intake stack, heat transfer in the refrigeration plant, and the inside of rack body is sent into from refrigeration plant's air outlet to the gas after the cooling, and this internal air conditioning of rack is discharged to the exhaust duct from the air outlet of server behind the air intake cooling server of server, is discharged steam to the outside of rack body by the exhaust duct. Therefore, the utility model discloses rack and data computer lab cooling system can realize the near-end cooling to the server in the rack to avoid appearing the phenomenon that cold and hot air current mixes, be favorable to improving refrigeration efficiency, ensure the energy-conservation nature and the reliability of data computer lab cooling system (including each refrigeration plant in the data computer lab and rather than the outdoor cooling system who feeds through).

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a cabinet provided in an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a refrigeration device of a cabinet provided in an embodiment of the present invention;

fig. 3 is a schematic structural diagram of an indoor side of a data room cooling system according to an embodiment of the present invention.

Reference numerals:

1-a cabinet body; 2-a server; 3-a refrigeration device; 31-a fan module; 32-a heat exchange module; 321-indoor heat exchanger; 33-a wind distribution module; 331-louver panels; 4-an air inlet pipeline; 5-an exhaust duct; 6-an air guide pipeline; 7-a liquid inlet pipe; 71-electronic expansion valve; 8-muffler; 81-temperature sensor; 82-a pressure sensor; 9-a controller.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

The embodiment of the utility model provides a cabinet. As shown in fig. 1, the server cabinet comprises a cabinet body 1 and a plurality of servers 2 arranged in the cabinet body 1, wherein a refrigeration device 3 is also arranged in the cabinet body 1, an air inlet of the refrigeration device 3 is communicated to the outside of the cabinet body 1 through an air inlet pipeline 4, and an air outlet of the refrigeration device 3 is positioned in the cabinet body 1; the air inlets of the plurality of servers 2 are positioned inside the cabinet body 1, and the air outlet of each server 2 is communicated to the outside of the cabinet body through an exhaust duct 5.

The embodiment of the utility model provides a rack, as shown in fig. 1, set up refrigeration plant 3 in the rack body 1 of every rack, refrigeration plant 3 is located the inside of rack, is close to heating source (server 2) more, can utilize the cold air of the 3 outputs of refrigeration plant in the rack body 1 to carry out the effective cooling of the near-end of pertinence to a plurality of servers 2 in it, and refrigeration efficiency is higher. In addition, the air outlets of the servers 2 in the cabinet body 1 are communicated to the outside of the cabinet body 1 through the air exhaust pipeline 5, so that the phenomenon of mixing of cold air and hot air is avoided, and the refrigeration efficiency is improved. Specifically, in the leading-in refrigeration plant 3 of air inlet pipe 4 of the outside gas of rack body 1, heat transfer realizes the cooling in refrigeration plant 3, and the inside of rack body 1 is sent into from refrigeration plant 3's air outlet to the gas after the cooling, and the air exhaust duct 5 is arranged from server 2's air outlet to the air exhaust duct 5 behind the air intake cooling server 2 of rack body 1 from server 2, discharges steam to rack body 1's outside by air exhaust duct 5. Therefore, the utility model discloses rack and data computer lab cooling system can realize the near-end cooling to server 2 in the rack to avoid appearing the phenomenon that cold and hot air current mixes, be favorable to improving refrigeration efficiency, ensure the energy-conservation nature and the reliability of data computer lab cooling system (including each refrigeration plant 3 in the data computer lab and rather than the outdoor cooling system who feeds through).

It should be noted that the air inlet duct 4 and the air outlet duct 5 are usually thermal insulation pipes, that is, the materials used for the air inlet duct 4 and the air outlet duct 5 have good thermal insulation performance, so that the loss of cooling capacity caused by indirect heat exchange between the cold air flow in the cabinet body 1 and the hot air flow in the air inlet duct 4 or the air outlet duct 5 can be reduced.

Wherein, air cleanliness factor, air humidity etc. can cause the influence to server 2's life, and in order to guarantee that server 2 satisfies the life of design, the air quality in the rack body 1 should satisfy preset index. At this time, in order to avoid that the outside air enters the inside of the cabinet body 1 and causes adverse effects on the air quality of the cabinet body 1, the plurality of exhaust ducts 5 are communicated with the air inlet duct 4 through the air guide duct 6 to form a closed cycle. At the moment, the air in the cabinet body 1 forms closed circulation through the air inlet pipeline 4, the air exhaust pipeline 5 and the air guide pipeline 6, so that the air quality in the air circulation process is stable, the design service life of the server 2 which is the cooling equipment is ensured to be met, and the server 2 in the cabinet body 1 can run stably and reliably for a long time.

It can be understood that, in order to guarantee that the cold volume in the cabinet body 1 can not run off fast, the outer wall of the cabinet body 1 is provided with a heat preservation layer, and the thickness of the heat preservation layer can be determined by calculation in combination with the external environment dew point temperature, the heat preservation coefficient of heat conductivity and the like. The insulating layer can be made of a heat insulating material, for example, the material of the insulating layer is one or a combination of more of asbestos, diatomite, foamed plastic, glass fiber, foamed glass concrete and calcium silicate, and of course, the insulating layer can be made of other materials besides the above materials, which are not listed here.

Further, in order to prevent the outer surface condensation dew of heat preservation, the temperature of the outer surface of heat preservation is higher than external environment dew point temperature by more than 2 ℃ to avoid the outside condensation dew of cabinet body 1 to drip and cause the potential safety hazard subaerially.

The number of the servers 2 in the cabinet and the arrangement mode thereof can be selected and arranged according to actual needs. For example, as shown in fig. 1 and 2, a plurality of servers 2 may be aligned in a row in the up-down direction in the cabinet body 1, and the cooling device 3 is located above or below the servers 2 in the row. Here, following the law of "hot air flow rises and cold air flow sinks", the refrigeration equipment 3 is usually located above the servers 2 in a row, and the cold air flow can rapidly sink into the air inlets of the servers 2 to cool the servers 2, so that a better air flow organization can be obtained, and the refrigeration efficiency can be improved.

It should be noted that fig. 1 only provides an example of the case where the air inlets of the servers 2 in one row are located on the same side, which is intended to more clearly illustrate the embodiment of the present invention, and cannot constitute a limitation to the implementation scope of the present invention.

Further, the positions of the air inlets of the servers 2 are not uniform, and the air inlets of the servers 2 may face any side wall of the cabinet body 1 except the rear wall and the door body opposite to the rear wall. Based on this, in order to avoid the occurrence of the situation that the difference in cooling efficiency of the servers 2 at the air inlets on different sides is large due to uneven air supply, referring to fig. 1 and 2, the refrigeration equipment 3 includes a housing, and a fan module 31, a heat exchange module 32 and an air distribution module 33 are sequentially arranged in the housing from the rear wall of the cabinet body 1 to the door body of the cabinet body 1, the air distribution module 33 is located right above the servers 2 in a row, and the side wall of the housing corresponding to the air distribution module 33 is of a louver structure. That is to say, the lateral wall of the casing that divides wind module 33 to correspond comprises the blade of multi-disc interval distribution, forms the air outlet of refrigeration plant 3 between adjacent blade, and the air conditioning after the cooling of heat exchange module 32 passes through the common air supply of a plurality of vents on the different lateral walls of the casing that divides wind module 33 to correspond like this, can be to the even air supply of the multiple sides that the server 2 of a row in cabinet body 1 probably has the air outlet, is favorable to improving refrigeration plant 3's refrigeration efficiency.

Here, the air inlet of the refrigeration equipment 3 is usually arranged at one side of the casing far away from the air distribution module 33, that is, at one side of the casing close to the rear wall of the cabinet body 1, so that the air flow can pass through quickly and the air inlet and outlet are smooth; meanwhile, the air inlet pipeline 4 can directly penetrate through the rear wall of the cabinet body 1, and the air inlet pipeline 4 is short in length in the cabinet body 1 and convenient to set.

Further, referring to fig. 1 and 2, the side wall of the housing corresponding to the wind distribution module 33 is composed of a plurality of louver panels 331, each louver panel 331 corresponds to one side of a row of servers 2, and the blades of the louver panels 331 are rotatable to adjust the amount of airflow at the louver panels 331. Wherein adjusting the amount of airflow at the louvered panel 331 includes completely blocking the airflow from passing through. In this case, in the case where at least two of the servers 2 are located at different sides of the row of servers 2, the airflow of the louver plate 331 may be adjusted according to the number of the air intakes of the corresponding servers 2, for example, the airflow of the louver plate 331 corresponding to the side with the larger number of the air intakes of the servers 2 is larger. Particularly, when the air inlets of the operating servers 2 are located on the same side, the blades can be adjusted to close the louver panels 331 on the other sides, and the cold air only passes through the air outlets on the louver panels 331 corresponding to one side of the air inlets of the operating servers 2, so that the air is supplied in a targeted manner, and the refrigeration efficiency is improved. Therefore, the utility model discloses refrigeration plant 3 of rack can adjust corresponding tripe panel 331 according to the distribution of server 2's air intake, and then control the air supply volume, and the pertinence is supplied air to corresponding server 2 as required, is favorable to improving refrigeration plant 3's refrigeration efficiency.

The fan module 31 includes a first fan and a second fan, and the first fan and the second fan are configured redundantly. That is to say, the first fan and the second fan are parts of a repeated configuration system, and when one of the first fan and the second fan breaks down, the other fan can intervene and replace the broken-down part to work, so that maintenance without shutdown is guaranteed, and the reliability of the whole refrigeration equipment 3 is high.

In some embodiments, referring to fig. 2 and 3, the heat exchange module 32 includes an indoor heat exchanger 321, and the indoor heat exchanger 321 is not unique in kind. For example, the indoor heat exchanger 321 is a plate heat exchanger; for another example, the indoor heat exchanger 321 is a tube heat exchanger. Compared with a tubular heat exchanger, the plate heat exchanger has the advantages of higher heat transfer efficiency, smaller volume, smaller occupied area, simple structure, easiness in carrying and installation, flexibility in heat adjustment, capability of increasing plates along with the increase of heat exchange requirements without replacing any equipment; for this reason, the indoor heat exchanger 321 is generally a plate heat exchanger.

The embodiment of the utility model provides a data computer lab cooling system refers to 1, fig. 2 and fig. 3, including off-premises station and above-mentioned rack, the off-premises station passes through feed liquor pipe 7 and muffler 8 and refrigeration plant 3 intercommunication to form heat transfer circuit.

The embodiment of the utility model provides a technical problem that data computer lab cooling system solved and the technological effect who gains are the same with the technical problem that the rack in above-mentioned embodiment solved and the technological effect who gains, no longer describe here.

The outdoor unit can comprise a water chilling unit and a natural cooling device, the water chilling unit and the natural cooling device are both communicated with the refrigerating equipment 3 in the cabinet body 1, and the machine room cooling system simultaneously supports two refrigeration modes of mechanical cooling and natural cooling. Meanwhile, temperature detection devices can be arranged inside and outside the data machine room, a water chilling unit or a natural cooling device is selected to be used for refrigerating according to detection results, and therefore the natural cold source is fully utilized while the refrigerating effect is guaranteed, and the energy consumption of the system is saved.

Here, the natural cooling device may be a dry cooler or a cooling tower. When selecting for use the cooling tower, the cooling tower still is from taking the spray water installation, and when detection device detected outdoor temperature and is higher than the setting value, it can further promote natural cooling's refrigeration effect to open the spray water installation. Through setting up cold ware or condensing tower futilely, can indirectly utilize natural cold source to adopt mechanical refrigeration to supply when natural cold source is not enough, can also effectively reduce the energy consumption when guaranteeing the refrigeration effect.

In addition, the outdoor unit needs to pass through cabinet body 1 through feed liquor pipe 7 and muffler 8 and refrigeration plant 3 intercommunication, and in view of the rear wall of cabinet body 1 is convenient for set up, generally speaking, feed liquor pipe 7 and muffler 8 pass the rear wall of cabinet body 1 and communicate with refrigeration plant 3, do not influence the user and open the door body of closing the cabinet, and space utilization is high, and is convenient for set up.

In some embodiments, as shown in fig. 2 and 3, the outdoor unit includes an outdoor heat exchanger and a compressor, the data room cooling system further includes a controller 9, a temperature sensor 81, a pressure sensor 82, and an electronic expansion valve 71, the electronic expansion valve 71 is disposed on the liquid inlet pipe 7, the temperature sensor 81 and the pressure sensor 82 are both disposed on the air return pipe 8, the temperature sensor 81 is configured to detect a temperature of a refrigerant in the air return pipe 8, and the pressure sensor 82 is configured to detect a pressure of the refrigerant in the air return pipe 8; the controller 9 is respectively electrically connected with the temperature sensor 81, the pressure sensor 82 and the electronic expansion valve 71, and the controller 9 can control the opening degree of the electronic expansion valve 71 according to the detection information of the pressure sensor 82 and the detection information of the temperature sensor 81 so as to ensure proper liquid supply amount and proper superheat degree and avoid the wet compression phenomenon of the compressor. Generally, a suitable degree of superheat is from 4 ℃ to 6 ℃.

Specifically, the pressure sensor 82 detects the evaporation pressure of the muffler 8 and outputs a current signal; the temperature sensor 81 detects the temperature of the refrigerant in the muffler 8 and outputs a resistance value signal; the controller 9 receives the current signal and the resistance value signal, and sends out a pulse signal through calculation to control the opening degree of the electronic expansion valve 71.

In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above embodiments are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, and all should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A cabinet comprises a cabinet body and a plurality of servers arranged in the cabinet body, and is characterized in that refrigeration equipment is further arranged in the cabinet body, an air inlet of the refrigeration equipment is communicated to the outside of the cabinet body through an air inlet pipeline, and an air outlet of the refrigeration equipment is positioned in the cabinet body;

the air inlets of the servers are located inside the cabinet body, and the air outlet of each server is communicated to the outside of the cabinet body through an exhaust pipeline.

2. The cabinet of claim 1, wherein a plurality of the exhaust ducts communicate with the intake duct through an air duct to form a closed cycle.

3. The cabinet according to claim 1, wherein an insulating layer is arranged on the outer wall of the cabinet body, and the temperature of the outer surface of the insulating layer is higher than the dew point temperature of the external environment by more than 2 ℃.

4. The cabinet of claim 1, wherein the plurality of servers are aligned in a column in an up-down direction within the cabinet body, the refrigeration appliance being located above the servers in the column.

5. The cabinet according to claim 4, wherein the refrigeration equipment comprises a housing, and a fan module, a heat exchange module and an air distribution module are sequentially arranged in the housing from the rear wall of the cabinet body to the door body of the cabinet body, the air distribution module is positioned right above the servers in the row, and the side wall of the housing corresponding to the air distribution module is of a shutter structure; and the air inlet of the refrigeration equipment is arranged on one side of the shell, which is far away from the air distribution module.

6. The cabinet of claim 5, wherein the side wall of the housing corresponding to the air distribution module is composed of a plurality of louver panels, each louver panel corresponds to a side of a column of the servers, and the blades of the louver panels are rotatable to adjust the amount of airflow at the louver panels.

7. The cabinet of claim 5, wherein the fan module comprises a first fan and a second fan, the first fan and the second fan being redundantly configured.

8. A cooling system of a data machine room, comprising an outdoor unit and the cabinet of any one of claims 1 to 7, wherein the outdoor unit is communicated with the refrigeration equipment through a liquid inlet pipe and a gas return pipe to form a heat exchange loop.

9. The data room cooling system of claim 8, the liquid inlet pipe and the air return pipe communicating with the refrigeration equipment through a rear wall of the cabinet body.

10. The data room cooling system of claim 8, wherein the outdoor unit comprises an outdoor heat exchanger and a compressor, the data room cooling system further comprises a controller, a temperature sensor, a pressure sensor and an electronic expansion valve, the electronic expansion valve is disposed on the liquid inlet pipe, the temperature sensor and the pressure sensor are both disposed on the air return pipe, the temperature sensor is configured to detect a temperature of a refrigerant in the air return pipe, and the pressure sensor is configured to detect a pressure of the refrigerant in the air return pipe;

the controller is respectively electrically connected with the temperature sensor, the pressure sensor and the electronic expansion valve, and the controller can control the opening degree of the electronic expansion valve according to the detection information of the pressure sensor and the detection information of the temperature sensor.