CN219248393U

CN219248393U - Air conditioning system and data center machine room

Info

Publication number: CN219248393U
Application number: CN202222762747.3U
Authority: CN
Inventors: 张炳华; 李明江; 孙晓钢
Original assignee: Hebei Qinhuai Data Co Ltd
Current assignee: Hebei Qinhuai Data Co Ltd
Priority date: 2022-10-17
Filing date: 2022-10-17
Publication date: 2023-06-23
Anticipated expiration: 2032-10-17

Abstract

The utility model provides an air conditioning system and a data center machine room, and belongs to the technical field of air conditioning. Wherein, the system includes first cooling module and second cooling module, and wherein, first cooling module includes: an indoor fan, an indoor air supply port, an indoor air return port, an indoor wet curtain device and an evaporator; the second cooling module includes: an outdoor fan, a fluorine pump condenser, a compressor, a fluorine pump, an expansion valve, an outdoor wet curtain device and a shutter; the device also comprises a cold plate liquid cooling sub-module. The utility model integrates the cold source of the air cooling system and the liquid cooling system, reduces the construction amount and the complexity, and can improve the cooling effect, reduce the energy consumption and reduce the construction and application cost.

Description

Air conditioning system and data center machine room

Technical Field

The utility model relates to the technical field of air conditioners, in particular to an air conditioning system and a data center machine room.

Background

In recent years, data center developments have advanced toward high power, high density, and more data centers have employed liquid cooling schemes. The data center machine room adopting cold plate liquid cooling is generally provided with two sets of air conditioning systems for the data center, namely cold plate liquid cooling and air cooling, according to service requirements, and comprises the steps of using a cold plate module for liquid cooling of components such as a CPU and the like and using a traditional air conditioner for air cooling of components such as a hard disk and the like. In other words, the data center machine room can have the condition that a cold plate liquid cooling system and an air cooling system coexist, and the two sets of air conditioning systems respectively bear a part of heat dissipation requirements in the machine room.

In a data center adopting cold plate liquid cooling, two sets of air conditioning systems with different heat dissipation principles are generally configured, deployed and regulated independently because of different working states and water supply and return temperatures. With the increasing number of data centers adopting a cold plate liquid cooling scheme, the matching and collaborative delivery of the two sets of air conditioning systems are also increasing. The inventor of the patent application discovers through studying the heat dissipation technology of a data center machine room:

the unit, outdoor arrangement, pipeline connection pipe and the like of the two sets of air conditioners need to be considered in a coordinated manner, and separate production and construction delivery are needed, so that the implementation of a data center with the requirement of rapid delivery is not facilitated;

the independent large-scale fluorine pump unit usually adopts dry working condition to operate, and under the same working condition in the same region, the comprehensive energy efficiency is 10% -20% lower than that of the indirect evaporative cooling unit, and the main reasons include being influenced by space and cost, limiting the size of a condenser, directly adopting outdoor air as a heat dissipation source and the like;

if the cold source of the cold plate liquid cooling is a cooling tower scheme, the water consumption is more, and the method is not suitable for areas with strict water resource index limitation and water shortage.

Disclosure of Invention

In order to solve part or all of the problems in the prior art, the utility model provides an air conditioning system and a data center machine room. The technical scheme is as follows:

in a first aspect, an air conditioning system is provided, including a first cooling module and a second cooling module, wherein the first cooling module includes: an indoor fan, an indoor air supply port, an indoor air return port, an indoor wet curtain device and an evaporator; the second cooling module includes: an outdoor fan, a fluorine pump condenser, a compressor, a fluorine pump, an expansion valve, an outdoor wet curtain device and a shutter;

the evaporator is arranged between the indoor fan and the indoor wet curtain device, so that indoor air is driven by the indoor fan to sequentially flow through the indoor fan, the indoor air supply opening, the evaporator, the indoor wet curtain device and the indoor air return opening to form a loop;

the outdoor fan is arranged at an outdoor air outlet of the second cooling module, the outdoor wet curtain device and the shutter are arranged at an outdoor air inlet, so that when the shutter is in an open state, outdoor air flows through the outdoor wet curtain device, the fluorine pump condenser and the outdoor fan in sequence under the drive of the outdoor fan and is discharged outdoors;

the fluorine pump condenser, the compressor, the evaporator, the expansion valve and the fluorine pump are sequentially connected through a cooling liquid pipeline to form a cooling liquid loop;

the system also includes a cold plate liquid cooling sub-module, the cold plate liquid cooling sub-module including: and a cold plate arranged by appointed IT equipment and a dry cooler arranged in the second cooling module are attached in the first cooling module.

Optionally, a heat insulation partition board is arranged between the first cooling module and the second cooling module.

Optionally, the system further comprises a support frame for placing and fixing the components of the first cooling module and the second cooling module.

Optionally, the indoor wet curtain device and/or the outdoor wet curtain device comprises a water spraying pump, a water inlet pipeline, a drainage pipeline, a valve and a water collecting tank;

the water spraying pump is arranged above the indoor wet curtain device and/or the outdoor wet curtain device; the valve is arranged on the water inlet pipeline or the water outlet pipeline; and two ends of the water inlet pipeline and the water outlet pipeline are respectively connected with the water spraying pump and the water collecting tank.

Optionally, the system further comprises a unit controller mounted on a side wall of the second cooling module.

Optionally, a cooling liquid pump, a frequency converter and a shock absorber are further installed on the cooling liquid loop of the second cooling module.

Optionally, the projection of the indoor wet curtain device on the plane where the indoor air supply port is located covers all or part of the indoor air supply port.

In a second aspect, a data center room is provided, employing the system of the first aspect.

By adopting the technical scheme, the application at least has the following technical effects:

first, the cold source of the air cooling system and the cold source of the liquid cooling system are integrated, and all components are arranged on a whole supporting frame, so that the integrated delivery of the air cooling system and the liquid cooling system is realized, and the workload and the complexity of a construction stage can be effectively saved. Secondly, the utility model can improve the energy efficiency of the fluorine pump unit because the wet curtain water spraying measure can be adopted in the indoor part, and the outdoor part does not directly adopt the outdoor air as a heat dissipation source, but adopts the wet curtain water spraying measure to cool the outdoor air, and then cools the condenser and the dry cooler of the fluorine pump system, so that the sufficient heat dissipation capability of the liquid cooling part can be ensured under the extreme working condition of the ground. Third, the utility model is divided into a first cooling module and a second cooling module, which accords with the air conditioner distributed architecture scheme, has stronger fault tolerance capability than the traditional capacity unit, and can not cause fatal influence on the system. Fourth, only adopt cold plate liquid cooling on appointed IT equipment, when this product is on a large scale, batch delivery, can let the air conditioning system price of data center computer lab further reduce, can effectively alleviate the problem that cold plate liquid cooling refrigerating system price is high.

Drawings

In order to more clearly illustrate the technical solutions of the inventive embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the inventive embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of an air conditioning system according to a first embodiment of the present application;

fig. 2 is a schematic structural diagram of an air conditioning system according to a second embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the following detailed description of the embodiments of the present utility model will be given with reference to the accompanying drawings. Terms such as "upper," "lower," "first end," "second end," "one end," "the other end," and the like as used herein to refer to a spatially relative position are used for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The term spatially 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 other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Furthermore, the terms "mounted," "disposed," "provided," "connected," "slidingly connected," "secured," and "sleeved" are to be construed broadly. For example, "connected" may be in a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; either directly, indirectly, through intermediaries, or through internal connections between two devices, elements, or components. 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.

The utility model provides an air conditioning system, which comprises a first cooling module and a second cooling module, wherein the first cooling module comprises: an indoor fan, an indoor air supply port, an indoor air return port, an indoor wet curtain device and an evaporator; the second cooling module includes: an outdoor fan, a fluorine pump condenser, a compressor, a fluorine pump, an expansion valve, an outdoor wet curtain device and a shutter;

the evaporator is arranged between the indoor fan and the indoor wet curtain device, so that indoor air sequentially flows through the indoor fan, the indoor air supply opening, the evaporator, the indoor wet curtain device and the indoor air return opening to form a loop under the drive of the indoor fan;

the system also comprises a cold plate liquid cooling sub-module, wherein the cold plate liquid cooling sub-module comprises: and attaching a cold plate arranged on the appointed IT equipment in the first cooling module and a dry cooler arranged in the second cooling module.

In implementation, the cost of the liquid cooling system is high, and the application can only cool part of IT equipment in a data center machine room by adopting a cold plate liquid cooling mode. Therefore, one part of IT equipment in the data center machine room can be cooled only by adopting an air cooling mode, and the other part of IT equipment can be cooled by adopting an air cooling and liquid cooling mode, so that the construction and application cost can be reduced under the condition of ensuring good cooling effect.

IT will be appreciated that IT devices in different areas of a data center room may be subject to different storage and computing tasks, with some areas of IT devices being more loaded in storage and computing, more heat may be generated, and some areas of IT devices being less loaded in storage and computing, less heat may be generated. At this time, only the air cooling mode is adopted for cooling the IT equipment with smaller storage and calculation load, and the air cooling and liquid cooling mode is adopted for cooling the IT equipment with larger storage and calculation load, so that the ideal cooling effect can be achieved. Thus, the above-described designated IT device may be a preset IT device that bears a large amount of storage and computing load.

The cold plate liquid cooling sub-module may further include other components (not shown in the figure) of the cold plate liquid cooling system, for example, a chilled water pipeline, a cold energy distribution unit, etc., where specific components and connection relationships thereof may be set according to needs, and the disclosure is not repeated herein.

In one embodiment, the outdoor fan is disposed outside the outdoor air outlet of the first cooling module, and the outdoor wet curtain device and the shutter are disposed inside the outdoor air inlet. The outdoor air outlet and the air inlet can be arranged on different system outer walls, and also can be arranged on different positions of the same system outer wall.

In practice, the first cooling module is located in a data center room (which may be referred to as an indoor portion), is a closed environment, is not communicated with outdoor air, and may be mutually communicated. The second cooling module is located outside the data center machine room (can be called an outdoor part) and is open to the outside air. The walls of the first cooling module and the second cooling module can be made of single materials or composite materials; brick walls, aerated concrete block walls, slab walls, etc. may be employed, as the utility model is not limited in this regard.

In practice, the flow direction of the airflow structure (which may be referred to as outdoor air) of the outdoor part component is outdoor air, outdoor cooling wet curtain device, shutter, fluorine pump system condenser, dry cooler, outdoor fan and outdoor air. The flow direction of the airflow structure (which can be called indoor air) of the indoor part component is the indoor air return opening, the indoor fan, the evaporator, the indoor wet curtain device and the indoor air supply opening.

Referring to fig. 1 and 2, the indoor fan may be disposed above the indoor wet curtain device or may be disposed behind the indoor wet curtain device, which is not limited in this application.

Further, a thermal insulation partition plate can be arranged between the first cooling module and the second cooling module.

In other words, the outdoor part and the indoor part may be connected by the insulation barrier. The wall body between the first cooling module and the second cooling module adopts the heat preservation baffle, thereby not only playing a role in heat insulation, but also enabling the system construction to be convenient and fast, and well improving the construction efficiency of the data center.

Further, the air conditioning system of the present application may further include a support frame for placing and fixing the components of the first cooling module and the second cooling module.

In practice, the two separate areas, the outdoor portion and the indoor portion, may be adjacently disposed on the base of the support frame. The support frame can be used for placing and fixing all components related to the air conditioning system, and the pattern or shape of the support frame can be adjusted according to the structural design of the air conditioning system. The support frame can be a spliced frame or an integrated frame. For example, the support frame may be welded with a metal such as stainless steel.

Further, the support frame can be in a single-layer structure or a multi-layer structure.

In one embodiment, the fluorine pump condenser and the liquid cooled chiller may be placed on the same level of the support frame or on different levels of the support frame.

Further, the indoor wet curtain device and/or the outdoor wet curtain device comprises a water spraying pump, a water inlet pipeline, a water draining pipeline, a valve and a water collecting tank; the water spraying pump is arranged above the indoor wet curtain device and/or the outdoor wet curtain device; the valve is arranged on the water inlet pipeline or the water discharge pipeline; the two ends of the water inlet pipeline and the water outlet pipeline are respectively connected with a water spraying pump and a water collecting tank.

In the implementation, the water spraying pump pumps water from the water collecting tank through the water inlet pipeline and supplies water to the wet curtain device during operation, the air around the wet curtain device is cooled and humidified by utilizing the principle of water evaporation and heat absorption, and the water is introduced into the water collecting tank through the water draining pipeline by utilizing gravity. The specific structure of the wet curtain device can refer to industry standards, and the detailed description is omitted in this application.

Further, the second cooling module may further include a louver mounted at the outdoor air inlet.

In the implementation, the shutter device can be a manual shutter controlled manually or an electric shutter controlled by remote control. The flow of the outdoor air entering the second cooling module can be controlled by opening or closing the shutter and adjusting the opening degree of the shutter. It can be understood that when the shutter is fully opened, the outdoor air flow entering the second cooling module is maximum; when the shutter is closed, the outdoor air flow entering the second cooling module is 0cfm or close to 0cfm.

Further, the air conditioning system provided herein may further include a unit controller mounted on a side wall of the second cooling module.

In practice, the air conditioning system provided herein may also include associated sensors and control elements for various components. Such as compressors, fluorine pumps, indoor and outdoor fans, indoor and outdoor wet curtain devices, and shutter devices. The sensor may be a temperature sensor, a humidity sensor, a gas flow meter, etc.

The control elements described above may be provided in a unified manner in the unit controller. Thus, the air conditioning system can be uniformly operated, overhauled and controlled outdoors through the unit controller. These controls may include: control of a compressor-fluorine pump, control of an indoor fan, control of an outdoor fan, control of an indoor humidifying wet curtain device, control of an outdoor cooling wet curtain, control of a shutter and the like. The compressor-fluorine pump control, indoor fan control, outdoor fan control and indoor humidifying wet curtain device control can refer to the existing traditional scheme, and the application is not repeated.

Further, a cooling liquid pump, a frequency converter and a shock absorber can be further arranged on the cooling liquid loop of the second cooling module.

In implementation, a cooling water pump, related valves, a frequency converter, a shock absorber and the like can be selectively deployed in the second cooling module according to project requirements. The control element of the cooling water pump can be prefabricated and integrated into the unit controller, so that the working state of the cooling water pump can be controlled outdoors through the unit controller. The associated valve may be a shut-off valve, check valve, vent valve, etc. The working state of the cold plate liquid cooling system can be controlled by operating the frequency converter. In order to avoid the damage of the air conditioning system when the air conditioning system encounters vibration, a shock absorber can be arranged at the water inlet and the water outlet of various pipelines, and the shock absorber can also be arranged at the joint of each part and the support frame base.

Further, the projection of the indoor wet curtain device on the plane of the indoor air supply opening covers the indoor air supply opening completely or partially.

In practice, the indoor wet curtain device may be sized not smaller than the air supply side cross-sectional dimension, or may be a portion of the air supply cross-sectional dimension. Correspondingly, the size of the outdoor wet curtain device can be flexibly set according to project requirements.

It should be noted that various pipelines related to the air conditioning system can be arranged and connected according to requirements and can be fixed through an integrated pipe rack, and the description of the pipeline is omitted.

Based on the same technical conception, the utility model further provides a control method of the air conditioning system, which is applied to the air conditioning system; the method comprises the following steps:

collecting outdoor environment temperature, and judging whether the outdoor environment temperature is smaller than a preset temperature threshold value;

when the outdoor environment temperature is smaller than a preset temperature threshold value, closing the outdoor wet curtain device;

and when the outdoor environment temperature is not less than a preset temperature threshold value, opening the outdoor wet curtain device.

Optionally, when the second cooling module is provided with a shutter, whether the outdoor air enters the second cooling module can be controlled by opening or closing the shutter. For example, when the outdoor ambient temperature is less than a preset temperature threshold, the shutter and the outdoor wet curtain device may be closed; when the outdoor environment temperature is not less than the preset temperature threshold, the shutter and the outdoor wet curtain device can be opened. And the flow of the outdoor air entering the second cooling module can be controlled by adjusting the opening degree of the shutter.

In practice, the outdoor wet curtain device may be turned on when the outdoor ambient temperature reaches a preset temperature threshold. For example, it may be turned on when the outdoor environment is harsh (e.g., high Wen Tianqi). Outdoor air is cooled through a wet curtain and then cooled through a condenser of the fluorine pump system, so that the refrigeration requirement is met. When the outdoor environment temperature is lower, the ideal cooling effect can be achieved without the outdoor wet curtain device and the fluorine pump system condenser working simultaneously, and at the moment, the outdoor wet curtain device can be closed for cooling the outdoor air by closing the shutter device, or the fluorine pump system condenser is correspondingly controlled (for example, the actual output power is adjusted), so that the aims of targeted refrigeration and energy efficiency optimization are achieved.

Based on the same technical conception, the utility model further provides a data center machine room, and the air conditioning system is adopted.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims

1. An air conditioning system comprising a first cooling module and a second cooling module, wherein the first cooling module comprises: an indoor fan, an indoor air supply port, an indoor air return port, an indoor wet curtain device and an evaporator; the second cooling module includes: an outdoor fan, a fluorine pump condenser, a compressor, a fluorine pump, an expansion valve, an outdoor wet curtain device and a shutter;

2. The system of claim 1, wherein a thermal barrier is disposed between the first cooling module and the second cooling module.

3. The system of claim 1, further comprising a support frame for positioning and securing components of the first cooling module and the second cooling module.

4. The system of claim 1, wherein the indoor wet curtain device and/or the outdoor wet curtain device comprises a water shower pump, a water inlet pipe, a water drain pipe, a valve, and a water collecting tank;

5. The system of claim 1, further comprising a crew control mounted on a side wall of the second cooling module.

6. The system of claim 1, wherein the coolant circuit of the second cooling module further has a coolant pump, a frequency converter, and a shock absorber mounted thereon.

7. The system of claim 1, wherein the projection of the indoor wet curtain device onto the plane of the indoor air supply opening covers the indoor air supply opening in whole or in part.

8. A data center room, characterized in that a system according to any of claims 1-7 is used.