In the intelligent control center project constructed in the Shijiu Port area of Rizhao Port, the Holtop heat recovery system helps Rizhao Port achieve the goal of building passive ultra-low energy buildings with its superior energy-saving effect.
Rizhao Port is at the forefront, in the transformation of port construction from labor-intensive to technology-intensive. After the completion of the control center, it will build an integrated management, control platform and an intelligent production scheduling system through data collection, analysis and optimization, and management decision-making in the entire southern area. Utilize technologies such as AI+machine vision+Internet of Things to realize unmanned and automated loading and unloading process equipment, greatly improving the level of intelligence and safety.
Rizhao Port Shijiu Port Area Control Center project construction requirements are relatively strict. In the early stage of planning, passive ultra-low energy consumption buildings were targeted. The office building has 11 floors. In the design of the air-conditioning system, the energy consumption problem is fully considered, and the passive design strategy is adopted, which is both comfortable and energy-saving. After the demonstration of multiple schemes, the system of air-conditioning heating recovery fresh air unit was finally adopted. The fresh air system used Holtop wheeled heat recovery air-conditioning unit. With the cooperation of various efforts, the energy-saving effect was finally achieved.
Passive ultra-low energy buildings refer to buildings that adapt to climate characteristics and natural conditions, provide a comfortable indoor environment through enclosure structures with higher thermal insulation performance and airtight performance, adopt fresh air heat recovery technology, and use renewable energy. Passive ultra-low energy buildings provide people with comfort and a way to save resources, which has far-reaching significance for the healthy development of human society.
The Rizhao Port Control Center requires a relatively large amount of fresh air, nearly 40,000 m3 air per hour, and multiple rotary heat recovery units are used to provide fresh air to each floor. In this type of large air volume air heat recovery system, the advantage of the rotor is reflected, it is through a rotatable rotor, the air supply and exhaust pass through half of the rotor, and the rotor rotates at a speed of 14 revolutions per minute , so that the energy of the exhaust air is transferred to the fresh air, so as to realize energy recovery, the runner is small in size, and the heat recovery efficiency is high, which is especially suitable for fresh air units with large airflow.
Through multiple arguments, field investigations and Holtop scientific selection software calculations, the heat recovery unit scheme was finally determined. Taking summer as an example, the exhaust air temperature is about 25 degrees. If all of them are exhausted, it will be wasted. When the wind of 35 degrees outside is sent into the room, the air conditioner has to continue to work and cool. The Holtop rotary wheel heat recovery air conditioning unit is adopted. Through the heat recovery of the rotary wheel, the indoor air supply can reach 27.5 degrees, and the heat recovery efficiency can reach more than 75%, which greatly reduces the air conditioning load. The application of heat recovery technology solves the contradiction between air comfort and air conditioning energy saving, and has also become a highlight of building energy saving in the control center of Rizhao Port.
Holtop has been committed to the research and development of air heat recovery technology, reducing the energy consumption of air conditioning systems through the application of various heat exchanger core components, from household to commercial, from office buildings to large venues, from hospitals to factories, in various buildings Widely used, strive to be an innovator in energy saving and emission reduction.
