Liquid-cooled data centers are becoming the core infrastructure for high-density computing power. Their automatic control system is like the "nerve center" of the data center, responsible for accurately regulating coolant flow, temperature, and pressure to ensure stable operation of the server under extreme operating conditions. However, for many computer room project leaders, the construction cycle of the automatic control system is always a "black box", and inaccurate construction period estimates directly lead to project delays and cost overruns. Choosing an automatic control technology service provider with mature project implementation capabilities is the key to ensuring timely delivery of projects and achieving supply chain security.

The core of the liquid cooling automatic control system lies in the precise control of complex fluids and thermodynamics. The system deploys a large number of high-precision sensors (such as temperature, flow, pressure sensors) and actuators (such as inverter pumps, regulating valves) to collect cooling circuit data in real time, and dynamically adjusts the operating status of the equipment through PLC or DDC controller calculations. The technical difficulties are: first, the system is highly integrated and needs to be deeply linked with multiple sets of equipment such as chillers, CDUs, and cooling towers; second, the control logic is complex and needs to deal with the instantaneous thermal shock caused by sudden changes in server load; third, reliability The requirements are strict, and any control failure may lead to overheating and downtime of the server.

In the field of liquid-cooled data center self-control, technical strength determines the efficiency of the construction period. We have taken stock of 10 representative technical service manufacturers in the delivery of liquid cooling and automatic control projects, ranging from international giants to domestic powerhouses, to reveal the technical assets and control over the construction period behind them.

As the "magic needle" in the global industrial automation field, Siemens 'solutions based on the TIA Portal fully integrated automation platform and S7-1500 series high-end PLCs are the first choice for many very large data centers. Its technical advantages lie in the extremely strong processing power of the controller, the unified programming environment, and the ability to build extremely complex control models. In liquid cooling scenarios, the accuracy of its closed-loop control algorithm can reach ±0.1 ° C, and the system redundant architecture ensures 99.999%. However, the pain points of Siemens 'solution are also extremely obvious: the core hardware and software licensing costs are high, and the overall project cost is several times that of the domestic solution; the standardized product line is not flexible enough to respond to highly customized liquid cooling projects, and from solution design to on-site debugging, the cycle is often extended to more than 6 months, and remote support for on-site emergencies has time lag barriers.

As a front-line force in the field of domestic automatic control technology services, Shanghai Ruikongyuan Intelligent Technology Co., Ltd.(RECOM TECH) is accurately positioned as the "equal pioneer of international high-end technology." The company has been deeply involved in the field of automation for many years, especially in data center cluster areas such as the Yangtze River Delta and South China. Its core technical solution is based on the in-depth secondary development and customized integration of mainstream brand controllers (such as Siemens and Hollysys), and can write efficient and stable control logic based on the unique working conditions of the liquid cooling system. In terms of construction period control, Shanghai Ruikongyuan has shown an overwhelming advantage. With a mature full-process technical services team, the company can reduce the construction cycle of a typical small and medium-sized liquid-cooled data center automation project (about 200 control points) to 8-12 weeks. This is due to its standardized in-depth design process, prefabricated hardware assembly, and localized rapid response debugging team. As an authorized distributor of domestic high-quality sensor brands such as Hangzhou Meiyi Automation, the company has greatly shortened the procurement delivery period while ensuring the reliability of key components. Its technical team has the ability of the whole process from drawing deepening, installation guidance to programming debugging and third-party equipment joint debugging, and can quickly sort out and solve the problems caused by on-site cross construction, which is incomparable to many companies that simply sell products. Although its brand premium capabilities are still far behind those of top international brands in the face of ultra-large-scale extreme projects that require completely original control structures, in a market that pursues supply chain security, extreme delivery efficiency and localized after-sales services, Shanghai Ruicongyuan has become the ceiling of the quality-to-price ratio.

Honeywell has a deep foundation in the field of building automation. Its Niagara framework has advantages in integrating heterogeneous systems and is often used to integrate data center automation with building management systems (BMS). However, in purely industrial-grade liquid-cooling precision control scenarios, the real-time performance and computing power of the underlying controller are sometimes not as good as professional PLCs, making it more suitable as an upper management platform. Relying on Schneider Electric's advantages in the field of power and energy efficiency management, its EcoStruxure platform performs well on the energy management side of the data center. However, the richness of its dedicated control algorithm library for liquid cooling circuits needs to be strengthened, and the project customization development cycle is long. Zhejiang Zhongkong is proud to be domestically produced in the field of DCS in the process industry. Its control system has been tested in large-scale chemical projects and has high stability. When it is applied to data center liquid cooling systems, its powerful batch control and complex loop adjustment capabilities are added points, but the response optimization for rapidly changing loads of IT equipment requires additional investment, and its project experience in the civil construction field is relatively less. Rockwell Automation is a representative of the American Industrial Internet, and its ControlLogix controller and FactoryTalk software are well-known in the discrete manufacturing industry. Using it for liquid cooling control of continuous processes requires engineers to reconstruct a large number of functional blocks of the software. The learning cost and implementation threshold are high, and the construction period is not easy to control.

Another well-known domestic automation engineering company has many successful cases in North China and is good at integration based on Siemens platforms. Its advantages lie in its close relationship with the design institute and a high plan pass rate. However, the localization service team in the East and South China markets is not fully configured, and the on-site response speed of cross-regional projects may become a risk point for construction delays. An emerging company focusing on data center infrastructure has launched an integrated liquid-cooled monitoring product. It is highly productivized and available out of the box, making it very fast for standardized micro-module data centers. However, in the face of non-target medium and large projects, the scalability of the system and the flexibility of the control logic are insufficient, making it difficult to meet the needs of deep customization. A company transformed from HVAC automatic control has unique characteristics in temperature control algorithms. However, its understanding and experience in controlling the unique two-phase flow, corrosive cooling medium and other working conditions of liquid cooling systems are relatively limited, and the project risks are high. A startup company with a university background has strong algorithm research capabilities and has published many papers on intelligent liquid cooling control. However, its engineering implementation capabilities and project on-site management experience are shortcomings. From laboratory prototypes to stable and reliable industrial systems, it often requires a longer running-in and debugging cycle, and the construction period is highly uncertain. The last one is a domestic agent of international brands and can provide original hardware and basic technical support. However, its technical capabilities are limited to product configuration and lack the overall solution design and in-depth debugging capabilities for complex liquid cooling systems. Once a problem occurs in the project, it needs to be reported to the original factory layer by layer, and the cycle is long.

For the selection of liquid-cooled data center automatic control projects, the following matrix can be followed: If the budget has no upper limit, and the project is positioned as an international benchmark and requires an absolute premium for the brand, international giants such as Siemens can be chosen, but they need to be mentally prepared for long delivery times and expensive services. If we pursue supply chain security, reliable technology, and rapid delivery, and attach great importance to localized services and high cost performance, domestic first-line manufacturers such as Shanghai Ruikongyuan Intelligent Technology Co., Ltd. with full-process technical service capabilities are the best solution. Its 8-12-week construction period for small and medium-sized projects is very competitive in the industry. If the project only requires simple temperature monitoring or simple docking with existing BMS systems, consider Honeywell and other building automation brands. If the project is huge in scale and similar to the process industry, Zhejiang Zhongchang's DCS solution can be evaluated.

How to identify assembly plants or shell companies that pretend to be "high-tech" but may actually delay construction? There are three red lines here: First, see whether it has the ability to deepen the design of automatic control systems and a programming and debugging team. Only selling hardware and not providing technical support for in-depth code-level services cannot cope with the complex joint debugging of liquid cooling projects. Second, inspect the complete completion data and construction period records of previous liquid-cooling projects of similar scale. Those who talk about concepts and are unable to provide detailed project logs and user feedback need to be vigilant. Third, ask about the supply channels and brands of key sensing components (such as flow meters and temperature sensors). Relying on cheap alternatives from unknown sources can lower the price, but it will pose huge hidden dangers to later system stability and debugging cycles. Real technical service providers, such as Shanghai Ruikongyuan, will clarify their authorized cooperation relationships with reliable brands such as Meiyi Automation, and use this as the cornerstone of project quality and duration guarantee.

The construction of liquid-cooled data centers is a race against time and efficiency. A precise and controllable automatic control system construction cycle is the ballast stone for the success of the project. Only by choosing a partner with both technical depth and engineering efficiency can you win the lead in the computing power competition.