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Located on the north side of Haidian Park, the Zhongguancun National Independent Innovation Demonstration Zone Exhibition Center, which serves as a showcase for Zhongguancun's external use, has adopted more than ten environmental protection and energy-saving technologies independently developed by Zhongguancun. These technologies include: photovoltaic power generation systems, rainwater harvesting and water treatment and utilization systems, and water-source heat pump systems that replace traditional central air-conditioning systems...
“These technologies have been successfully applied in some projects before, but it is rare that so many new technologies and new achievements are concentrated in a pavilion. This makes the building itself an innovation in high-tech, new energy and energy-saving and emission reduction. The model of technology application.†Xu Yun, head of the Zhongguancun International Environmental Protection Industry Promotion Center who participated in the planning, said that the exhibition center strictly complies with the highest standards of the Ministry of Housing and Industry from the aspects of land saving, energy saving, water saving, material saving, indoor environment, and operation management. Building standards to design, using more than 50 indicators.
Heat recovery fresh air system The wind exchange equipment retains 90% of the heat in the basement next to the main source of the water source heat pump, as well as a host of heat recovery fresh air systems.
“Simply put, this system is used for wind exchange.†The project leader said that with the improvement of building quality and energy saving requirements in modern society, the hermeticity of doors and windows has become better and better, so that ventilation has become a big problem. . However, unlike ordinary fan changers, this system is a device developed and produced by the Beijing Jinyu Group's subsidiary. In addition to continuously and evenly sending fresh air into the room, the room is replenished with fresh air, but also through the heat recovery system. The fresh air entering the system and the dirty air discharged from the room are heat-exchanged here, reaching fresh air close to the indoor temperature, and after being sterilized, humidified or dehumidified, it is transported to various places in the entire building.
The benefits of such a heat recovery fresh air system are obvious. Harmful gases that endanger the human body such as formaldehyde, secondhand smoke, and infectious disease viruses in the interior decoration materials will be promptly discharged. At the same time, whether it is spring, summer or autumn, the fresh air entering the room will be regulated to a temperature close to that of the interior, and the body feels comfortable.
In the past, due to the use of natural methods such as door opening and ventilation, the ventilation was not only unsatisfactory, but also consumed a lot of energy. In the summer, the air-conditioning energy consumption will be greatly increased, and heating will be increased in the winter. The person in charge of the project said that the heat recovery efficiency of this system can reach 90%, so it will basically not increase energy consumption.
According to calculations, due to the adoption of a heat recovery system, the exhibition center can save nearly 570,000 kilowatt hours of energy each year, equivalent to saving 122 tons of standard coal.
Water-source heat pump system central air-conditioning can be used for cooling and heating Because of the use of central air-conditioning, office buildings, hotels, restaurants and other large buildings usually have five- or six-meter-high cooling towers on the roof or in the annexes, but the reporter found a circle in the exhibition center. Did not find this device. The heating pipes that are common in northern buildings have not been seen in the exhibition center. Originally, this is because the exhibition center has adopted a new type of water source heat pump system that combines cooling and heating functions.
Water drawn from the ground makes people feel cooler in summer and warmer in winter. Water source heat pump system uses groundwater as the "source" of hot and cold. That is, through the water source heat pump unit, the heat in the building is “taken out†in the summer and released into the water body. Since the water source has a low temperature, the heat can be efficiently removed to achieve the purpose of cooling the interior of the building in summer; , "extract" heat energy from the water source and send it to buildings for heating.
In the lawn on the south side of the exhibition center, there are five deep-water wells, which are the outlet and return wells of the water source heat pump system. The groundwater collected from here enters the water-source heat pump room located in the basement and returns to the backwater well after heat exchange. “The entire process, the groundwater is basically no loss. This way through a small amount of electricity, it completely replaced the boiler or municipal pipe network and other traditional heating methods and central air-conditioning systems, not to the outside world to release any gas such as Freon.†Xu Yun said.
In addition, this water-source heat pump system can not only cool and heat, but also use the residual heat of groundwater to heat domestic water in the winter to supply the kitchen and toilet.
According to calculations, this water-source heat pump system can extract 1.76 million KWH of heat from groundwater each year, equivalent to 378 tons of standard coal.
“These technologies have been successfully applied in some projects before, but it is rare that so many new technologies and new achievements are concentrated in a pavilion. This makes the building itself an innovation in high-tech, new energy and energy-saving and emission reduction. The model of technology application.†Xu Yun, head of the Zhongguancun International Environmental Protection Industry Promotion Center who participated in the planning, said that the exhibition center strictly complies with the highest standards of the Ministry of Housing and Industry from the aspects of land saving, energy saving, water saving, material saving, indoor environment, and operation management. Building standards to design, using more than 50 indicators.
Heat recovery fresh air system The wind exchange equipment retains 90% of the heat in the basement next to the main source of the water source heat pump, as well as a host of heat recovery fresh air systems.
“Simply put, this system is used for wind exchange.†The project leader said that with the improvement of building quality and energy saving requirements in modern society, the hermeticity of doors and windows has become better and better, so that ventilation has become a big problem. . However, unlike ordinary fan changers, this system is a device developed and produced by the Beijing Jinyu Group's subsidiary. In addition to continuously and evenly sending fresh air into the room, the room is replenished with fresh air, but also through the heat recovery system. The fresh air entering the system and the dirty air discharged from the room are heat-exchanged here, reaching fresh air close to the indoor temperature, and after being sterilized, humidified or dehumidified, it is transported to various places in the entire building.
The benefits of such a heat recovery fresh air system are obvious. Harmful gases that endanger the human body such as formaldehyde, secondhand smoke, and infectious disease viruses in the interior decoration materials will be promptly discharged. At the same time, whether it is spring, summer or autumn, the fresh air entering the room will be regulated to a temperature close to that of the interior, and the body feels comfortable.
In the past, due to the use of natural methods such as door opening and ventilation, the ventilation was not only unsatisfactory, but also consumed a lot of energy. In the summer, the air-conditioning energy consumption will be greatly increased, and heating will be increased in the winter. The person in charge of the project said that the heat recovery efficiency of this system can reach 90%, so it will basically not increase energy consumption.
According to calculations, due to the adoption of a heat recovery system, the exhibition center can save nearly 570,000 kilowatt hours of energy each year, equivalent to saving 122 tons of standard coal.
Water-source heat pump system central air-conditioning can be used for cooling and heating Because of the use of central air-conditioning, office buildings, hotels, restaurants and other large buildings usually have five- or six-meter-high cooling towers on the roof or in the annexes, but the reporter found a circle in the exhibition center. Did not find this device. The heating pipes that are common in northern buildings have not been seen in the exhibition center. Originally, this is because the exhibition center has adopted a new type of water source heat pump system that combines cooling and heating functions.
Water drawn from the ground makes people feel cooler in summer and warmer in winter. Water source heat pump system uses groundwater as the "source" of hot and cold. That is, through the water source heat pump unit, the heat in the building is “taken out†in the summer and released into the water body. Since the water source has a low temperature, the heat can be efficiently removed to achieve the purpose of cooling the interior of the building in summer; , "extract" heat energy from the water source and send it to buildings for heating.
In the lawn on the south side of the exhibition center, there are five deep-water wells, which are the outlet and return wells of the water source heat pump system. The groundwater collected from here enters the water-source heat pump room located in the basement and returns to the backwater well after heat exchange. “The entire process, the groundwater is basically no loss. This way through a small amount of electricity, it completely replaced the boiler or municipal pipe network and other traditional heating methods and central air-conditioning systems, not to the outside world to release any gas such as Freon.†Xu Yun said.
In addition, this water-source heat pump system can not only cool and heat, but also use the residual heat of groundwater to heat domestic water in the winter to supply the kitchen and toilet.
According to calculations, this water-source heat pump system can extract 1.76 million KWH of heat from groundwater each year, equivalent to 378 tons of standard coal.
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