Liquid Cooling Maintennnance Checklist Required For Hypercompute Data Center

In many years to come, traditional data center maintenance regime will become obsolete,  and engineers would have to know how to maintain liquid cooling system.

Here’s a maintenance checklist tailored for liquid cooling systems in a hypercompute data center. It includes regular tasks to ensure optimal system performance and prevent downtime.

Liquid Cooling Maintenance Checklist for Hypercompute Data Centers

1. Daily Checks

Coolant Flow & Pressure: Verify that coolant flow rates and pressure levels are within recommended parameters.

Temperature Monitoring: Check inlet and outlet coolant temperatures for consistency with operating specifications.

Leak Detection: Visually inspect all critical connections and joints for leaks, and monitor leak detection sensors.

Alert Logs: Review system alerts and alarms, noting any recurring or critical issues.

2. Weekly Checks

Coolant Levels: Ensure reservoirs and tanks are filled to the recommended levels.

Air Filters: Inspect and clean any air filters around liquid cooling equipment and server racks.

Pump Performance: Check pump status, including RPM, vibration, and noise, for signs of wear or malfunction.

Heat Exchanger Status: Inspect heat exchanger components for signs of corrosion, blockages, or scale buildup.

3. Monthly Checks

Coolant Quality: Test coolant pH, conductivity, and additive levels; replace coolant if necessary to avoid corrosion or microbial growth.

Valve Functionality: Check and test all control and shutoff valves for operational integrity.

Sensor Calibration: Calibrate temperature, pressure, and flow sensors as per manufacturer recommendations.

Insulation Integrity: Inspect insulation around pipes and equipment for damage or degradation.

4. Quarterly Checks

Heat Dissipation: Test heat dissipation performance for chillers and heat rejection equipment (cooling towers, radiators).

Backup Power & UPS Check: Verify that backup systems (UPS and diesel generators) support cooling in the event of power loss.

Pump & Fan Motors: Lubricate and inspect pump and fan motors, replacing bearings as necessary to maintain efficiency.

Corrosion Inspection: Check exposed metal surfaces in pipes and tanks for signs of corrosion; apply anti-corrosion treatments as needed.

5. Biannual Checks

Deep Clean Heat Exchangers: Perform a detailed cleaning of heat exchangers to remove any accumulated scale or debris.

Drain & Replace Coolant: Fully drain and replace coolant in the system to prevent contamination and maintain quality.

Thorough Leak Testing: Conduct a thorough leak test on all piping, joints, and connectors to preempt potential leaks.

Software/Firmware Updates: Ensure cooling system controllers, monitoring software, and firmware are up-to-date.

6. Annual Checks

System Flush: Flush entire cooling system to remove residual contaminants or buildup.

Inspection of Piping & Components: Perform a full inspection of all piping and components for wear, corrosion, and overall integrity.

Cooling System Redundancy Test: Test backup and redundant cooling paths to ensure reliability.

Professional Maintenance: Schedule a professional assessment of the entire cooling infrastructure for any potential improvements or required repairs.

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Additional Tips

Spare Parts Inventory: Keep an inventory of critical spare parts such as pumps, valves, sensors, and coolant.

Document Issues & Resolutions: Maintain a log for any issues and resolutions to identify trends or recurring issues.

Safety Protocols: Establish safety protocols for handling and disposing of coolant, especially during refills and replacements.

Regular adherence to this checklist can help maintain peak cooling performance and extend the lifespan of your hypercompute data center’s infrastructure.

以下是专为超算数据中心设计的液冷维护检查清单，涵盖了定期检查内容，确保系统性能最佳，防止停机。

超算数据中心液冷系统维护检查清单

1. 每日检查

冷却液流量和压力：检查冷却液流量和压力是否在推荐参数范围内。

温度监控：检查冷却液进出温度，确保符合操作规范。

漏液检测：目视检查所有关键连接处是否有泄漏，同时监控漏液传感器。

警报日志：查看系统警报日志，记录任何重复或关键问题。

2. 每周检查

冷却液液位：确保储液罐液位在推荐范围内。

空气过滤器：检查并清洁液冷设备及机架周围的空气过滤器。

泵的性能：检查泵的状态，包括转速、震动及噪音，是否有磨损或故障迹象。

热交换器状态：检查热交换器是否有腐蚀、堵塞或结垢。

3. 每月检查

冷却液质量：测试冷却液的pH值、电导率及添加剂含量，必要时更换冷却液以避免腐蚀或微生物滋生。

阀门功能：检查并测试所有控制阀门及关闭阀门的操作完整性。

传感器校准：按照制造商建议，校准温度、压力和流量传感器。

绝缘完整性：检查管道和设备周围的绝缘材料是否有损坏或老化迹象。

4. 每季度检查

散热性能：测试冷却器及热排放设备（冷却塔、散热器）的散热性能。

备用电源与UPS检查：确保备用系统（UPS和柴油发电机）在断电时能够支持冷却系统。

泵和风扇电机：润滑并检查泵和风扇电机，根据需要更换轴承以保持效率。

腐蚀检查：检查管道和水箱内的裸露金属表面是否有腐蚀迹象；如有需要，进行防腐处理。

5. 每半年检查

深度清洁热交换器：对热交换器进行深度清洁，去除结垢或杂质。

更换冷却液：彻底更换冷却系统中的冷却液，以保持液体质量。

全面漏液测试：对所有管道、接头和连接件进行全面漏液测试。

软件/固件更新：确保冷却系统控制器、监控软件和固件均已更新。

6. 每年检查

系统冲洗：对整个冷却系统进行冲洗，以去除残余污染物或堆积物。

管道及组件检查：全面检查所有管道和组件的磨损、腐蚀及整体完整性。

冷却系统冗余测试：测试备份和冗余冷却路径，以确保可靠性。

专业维护：安排专业人员对整个冷却基础设施进行评估，查找潜在改进或需要修复的部分。

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附加建议

备件库存：保持关键备件（如泵、阀门、传感器和冷却液）的库存。

问题与解决记录：记录问题和解决方案，以识别趋势或重复问题。

安全协议：制定冷却液处理和处置的安全协议，特别是在补充和更换过程中。

定期执行此检查清单有助于保持冷却性能的最佳状态，延长超算数据中心基础设施的使用寿命。