新华财经北京9月28日电（记者沈寅飞）5774支温度计、7.5万米测温光纤，共同构成了中国电建在白鹤滩水电站建设中研发智能温控系统的"敏感触角"，实 现了混凝土全生命周期的精准监控。 在这套系统的辅助下，白鹤滩水电站夏季浇筑温度被严格控制在27℃以内，彻底解决了"无坝不裂"的行业难题。同样，在两河口水电站（300米级砾石土心 墙堆石坝），中国电建采用数字化施工监控技术，成功填补高海拔地区大坝建造的技术空白。 作为我国能源电力建设领域的"国家队"，中国电建在"十四五"期间深入贯彻落实国家能源安全新战略，以"双碳"目标为引领，以科技创新为驱动，以全产业 链整合为支撑，在国内水电建设与国际能源合作中取得显著成就，实现规模、技术、生态的三重突破，为中国乃至全球能源绿色转型注入强劲动力。 近期，中国上市公司协会联合新华财经等媒体开展"我在'十四五'这五年 上市公司在行动"主题宣传活动。记者就此对中国电建进行了调研采访。 推动国内水电跨越发展，筑牢能源安全根基 中国电建因水而生、因水而兴，既是我国水电工程的主要建设者，又见证了我国水电事业所取得的辉煌成就。"十四五"期间，中国电建推动我国水电装机规 模实现跨越式增长，尤其 ...

针对混凝土配合比不当的问题，攻坚小组一头扎进现场试验室，对着混凝土"较上了劲"。"这些大家伙就是我们模拟闸室底板的'替 身演员'"，项目总工张章龙指着摆放在空地上的3块2.5米×1.5米×1米的"巨无霸"介绍道。经过28天的测试，碎石级配为5-16毫米、16-31.5 毫米、31.5-45毫米的"2号选手"以绝对领先的优势进入到了现场试验的"最终大考"——适当比例的墙身与底板模拟浇筑。是骡子是马，还 得拉出来遛遛。等到拆模那天，一双双手从光滑的试块表面摸过，喜悦的笑容挂在了每个小组成员脸上。"入模温度约17.6摄氏度，最大 内表温差为24摄氏度，均小于规定的温控要求。同时对试件外观整体裂缝检测，尚未发现明显裂缝，质量符合要求！"项目质量部长付硕 在一旁激动地为大家介绍着检测结果。 优化好混凝土配合比后，如何将施工过程的温度监测做到位成了攻坚小组的新难题。"每个测温管内布设了上、中、下三层测温 点，能够更直观地监测表层温度和内里温度"技术员郭子峰边埋设边感慨着。这样的测温管每20-30平方米便会放置一根，测温管就象是混 凝土的"血管"，埋设在闸室底板下的感应片就像"神经末梢"，将一个个点的温度信息最终汇入到智能 ...

Core Insights - The Yarlung Tsangpo River hydropower project, with an investment of 1.2 trillion yuan, is set to redefine global hydropower history by utilizing a five-level cascade system to harness a vertical drop of 2400 meters, achieving an annual power output 1.6 times that of the Three Gorges Dam [1][3] Group 1: Technical Achievements - The project has established two world records: the largest vertical drop for a cascade hydropower station group and the first single hydropower system to exceed 200 billion kilowatt-hours in annual output [3] - New nano-concrete technology has been developed to withstand extreme cold, enhancing freeze resistance to 800 cycles compared to traditional concrete's 50 cycles [3] - An intelligent temperature control system embedded in the dam utilizes geothermal resources to maintain a safe temperature range, reducing crack occurrence by 92% in extreme cold conditions [3] Group 2: Infrastructure and Efficiency - The project includes the world's first ±1100 kV ultra-high voltage direct current transmission system, which improves transmission efficiency by 40% compared to the 2014 Qinghai-Tibet power grid project, equivalent to a reduction of 1.8 million tons of coal consumption annually [5] - A network of 437 sensors has been installed for real-time monitoring of geological and hydrological changes, achieving a landslide warning accuracy rate of 92% [5] Group 3: Economic and Environmental Impact - The hydropower project is expected to create 48,000 jobs and boost Tibet's GDP growth by 2.3 percentage points annually [7] - The clean energy produced can replace 6.8 million tons of standard coal each year, equivalent to planting 370,000 hectares of trees [7] - The associated transportation network is projected to enhance Linzhi's tourism industry, with cold chain logistics expected to grow by 300% by 2025 [7]

Group 1 - The core point of the news is that from July 1 to July 15, during the summer transportation period, the national railway has sent a total of 218 million passengers, representing a year-on-year increase of 3.4%, with an average of 894 additional passenger trains arranged daily [1] - Major routes with high passenger flow include Beijing to Shanghai, Hohhot, Xi'an to Chengdu, and Shenzhen to Hong Kong [1] Group 2 - The railway department has implemented various intelligent low-energy measures to ensure a comfortable travel experience for passengers amid high temperatures [2] - In Nanjing Station, a mist cooling system automatically sprays every half hour for five minutes, providing relief to waiting passengers [2] Group 3 - Guangzhou Baiyun Station has seen a daily passenger volume more than double compared to normal days, with temperature sensors distributed throughout the waiting hall as part of an intelligent temperature control system [4] - This intelligent temperature control system can detect temperature changes of 0.5°C in real-time and adjust the temperature accordingly, maintaining a comfortable environment while saving energy [6] Group 4 - The Wuhan Railway Bureau has equipped its train sets with a health management system that allows for real-time monitoring of air conditioning systems, ensuring passenger comfort [8] - Additionally, smart light-dimming films have been installed on glass curtain walls to effectively block ultraviolet rays, enhancing the travel environment during high temperatures [8]

Core Insights - The "Dong'a Model" demonstrates significant energy-saving results in heating measurement, achieving an overall energy-saving rate of 34.3% for the 2024-2025 heating season, equivalent to a reduction of 15,700 tons of standard coal and a decrease of 40,900 tons of carbon dioxide emissions [1][2] Group 1: Company Innovations - Dong'a Jidian Energy Co., Ltd. has established a comprehensive "source-network-user" collaborative control system utilizing IoT, big data, and AI technologies, enhancing heating quality and user satisfaction [1] - The company has developed a unified intelligent cloud heating network management platform that integrates data and control flows, creating a closed-loop operation model [1] Group 2: User Experience and Benefits - Users are equipped with smart temperature control systems that allow them to adjust heating via a mobile app, leading to significant cost savings; for example, one user saved 671.83 yuan over four months after installing a metered heating system [2] - 92.48% of users in the Kaixuan City community reported savings on heating expenses, with the highest individual savings reaching 68.43% [2] Group 3: Industry Impact - The "Dong'a Model" has been recognized by the China Clean Industry Committee as a typical case of clean heating, showcasing an innovative mechanism that involves association guidance, enterprise leadership, and user participation [2] - Experts suggest that when heating becomes a measurable commodity, it will lead to an efficiency revolution in China's urban heating system [2]

Group 1 - The core viewpoint is that heat pumps are gradually replacing traditional coal-fired boilers, with the Chinese heat pump market expected to exceed 100 billion yuan by 2025, and the photovoltaic heat pump segment projected to grow at an annual rate of over 50% [1] - The Chinese refrigeration and HVAC industry is transitioning from "scale expansion" to "quality leap," driven by global energy transformation and AI technology [1] - Companies in the industry are exploring solutions related to resource recovery, energy consumption loopholes, management efficiency, and trade environment fluctuations, while advancing into new sectors such as electric vehicles, energy storage, and clean heating [1] Group 2 - At the Qingdao Beiyang Technology Company exhibition, a multi-working condition large pressure ratio centrifugal unit demonstrated the company's self-developed dual-shaft large pressure ratio centrifugal compressor, achieving multi-stage compression with a single motor drive [2] - The company also showcased a cascade centrifugal ultra-high temperature unit capable of producing high-temperature water up to 140°C, meeting the high-temperature needs of various industries such as chemical, petroleum refining, and food processing [2] - The traditional heat pump technology is limited by compressor and refrigerant performance, typically providing water temperatures between 60°C and 80°C, which are insufficient for industrial high-temperature demands [2]

Core Insights - The 2025 China Refrigeration Exhibition showcased significant advancements in the refrigeration and air conditioning industry, with a record scale and participation from nearly 1,200 exhibitors from 32 countries, indicating a growing interest from foreign buyers [1][2] - The industry is transitioning from "scale expansion" to "quality improvement," driven by global energy transformation and AI technology, positioning China as a leader in intelligent manufacturing [1][6] Industry Trends - The exhibition highlighted the increasing popularity of heat pumps and cold chain equipment among overseas buyers, reflecting a shift in demand towards energy-efficient technologies [2] - Key technologies such as heat pump systems, data center cooling, and intelligent equipment are emerging as industry highlights, with companies making breakthroughs in clean heating and energy storage [3][5] Technological Innovations - Qingdao Beiyang Technology introduced a high-temperature heat pump system capable of reaching water temperatures of 99°C, addressing industrial high-temperature needs and marking a significant technological breakthrough [4] - Haier Smart Home showcased the world's first gas suspension heat pump centrifugal unit, which can reduce maintenance costs and achieve a 30% energy saving through AI technology [4] Market Dynamics - The heat pump market in China is projected to exceed 100 billion yuan by 2025, with specific segments like photovoltaic heat pumps expected to grow at an annual rate of over 50% [5] - The cold chain market is rapidly evolving, driven by demand from fresh e-commerce and pharmaceuticals, although challenges such as fragmentation remain [5][6] International Expansion - Companies are increasingly focusing on international markets, with strategies including acquiring European heat pump firms and establishing production bases in countries like Brazil and Indonesia to mitigate tariff risks [7][8] - The 2025 China Refrigeration Exhibition plans to set up overseas sub-exhibitions, starting in Saudi Arabia, to tap into the growing construction market in the Middle East and Southeast Asia [8]