Energy-saving lamps can be seen everywhere on the campus of the University of w88 casino games Economics and Trade.(Data picture)

Walking into the campus of the University of w88 casino games Economics and Trade located in Chaoyang District, Beijing, people feel that energy conservation and emission reduction can be seen everywhere here"Shadow": Solar street lights are installed on both sides of the road, the new library adopts new w88 casino games-saving air conditioning technology, and the main teaching building is covered with one floor"Insulation Coat", bathing and hot water supply adopt new heating technology mainly based on solar w88 casino games…

Hu Fuyin, vice president of the school, told reporters:"As a result of w88 casino games conservation and emission reduction measures, the school saves money in one year2500More than 10,000 yuan."

Build a centralized recycled water station to collect rainwater and snow water, and frequently use new tricks to save water

Universities are large energy consumers and have great potential to tap in energy conservation and emission reduction. In recent years, the University of w88 casino games Business and Economics has worked hard on this and has achieved remarkable results.2004In 2018, the school launched a recycled water treatment project to collect bath water from students' public bathrooms, wastewater and pipe network sewage from some dormitory bathrooms.

"After the demonstration, the school established daily processing capabilities1000cubic meterscentralized recycled water treatment station, so that new buildings do not need to purchase recycled water treatment equipment."Ren Minghe recalled.

These reclaimed water is used in buildings such as school office buildings, teaching buildings and student dormitories70%Area of ​​toilet flushing,30%Daily watering of green spaces and landscape water for square fountains, artificial lakes and other landscapes. Since the water contains nitrogen fertilizer, some campus green spaces are used as"Test field"After using water, the green grass is green.

Just when the first phase of the water treatment system was a huge success, Ren Minghe encountered another problem."Unexpectedly, we later found that the recycled water treatment capacity was not insufficient, but the sewage source was insufficient."Ren Minghe said with a smile.

It turns out that the daily processing volume of the recycled water treatment station was designed based on the early sewage discharge. Now, students' awareness of water conservation has been significantly improved, and sewage discharge has naturally decreased.

What to do?Ren Minghe thought of a way to collect rainwater and snow water. He made a rough calculation to precipitate every year10time, each time5000cubic meterscalculation, school can collect it every year5Ten thousand cubic metersRain water. So, Ren Minghe began to plan to build a reservoir to collect rainwater and snow water.

In order to save land resources, most of the school's rainwater collection pools use the terrain and landforms, choose abandoned heating ditches, air raid shelters, self-produced wells and other original facilities, and directly connect to the recycled water station, so that the ability to collect rainwater reaches510,000 tons, saving water costs in two years5010,000 yuan.

[w88 casino games Saving Measures]:Implementation of the third phase of the reclaimed water project;Utilize recycled water resources;Bathroom and boiling water room useICCard;Comprehensive repair of pipelines, etc.

[w88 casino games saving efficiency]:With the school’s building area, greening area and the number of teachers and students increasing, the water consumption has not increased, but has decreased.2001The annual school water consumption is73.210,000 tons,2007When the number of water users in the school has more than doubled in the year, the water consumption is57.210,000 tons, a decrease of28.07%.

Installing solar street lights, adopting low-voltage lighting, and using power saving to make your brain

Walking on campus, you can see street lights on both sides of the roads equipped with solar devices. It was getting late and the street lights on both sides of the road did not light up at the same time.

"Currently, the school is close420The street light is replaced with solar street light, the project has been completed80%, can be saved throughout the year after the project is completed4Ten thousand kilowatt-hours of electricity, reducing carbon emissions38.14Ton."Ren Minghe said.

2009Year9Month, the school renovated the distribution equipment and reduced the lighting voltage to180V. Ren Minghe introduced that measures to reduce lighting voltage were conducted on the third floor of the library for a week in advance. The results showed that without affecting the lighting effect, electricity can be saved30%to35%.

[w88 casino games Saving Measures]:80%campus street lights transformed into solar street lights;Introduced human body sensing lighting equipment in public areas;Accommodation and teaching buildings realize one household and one table;Replace lighting fixtures with w88 casino games-saving lamps;Replace oil transformer with w88 casino games-saving dry transformer;w88 casino games-saving equipment is installed in the distribution room, etc.

[w88 casino games saving efficiency]:After the renovation of the power saving project, the overall average power saving rate reaches20%;Among them, the replacement of w88 casino games-saving lamps brings economic benefits5010,000 yuan, reduce carbon emissions967Tons, power-saving equipment replacement in distribution room brings economic benefits16710,000 yuan, reduce carbon emissions3470Ton.

Time-divided zone heating, boiling water solar heating, careful calculation on heating

As Beijing takes measures to control air pollution, coal burning is prohibited within the Fourth Ring Road, and the school heating center has also gone through the stage of coal-to-gas conversion. Since the price of gas is coal3times, heating costs have increased sharply."Don't underestimate the heating cost in winter, you can burn a Santana a day."Vice Principal Hu Fuyin made a simple calculation for the reporter.

Gao Zhiwei, director of the school heating center, thought of adopting time-divided zone heating method, and quickly came up with a design pipeline renovation plan. The school also quickly passed this plan.

In this way, the heating center ensures normal heating of the teaching office building during the day, appropriately reduces the temperature of the student dormitory, and at night, appropriately reduces the temperature of the teaching office building. This practice has changed the traditional heating method, regardless of whether the weather is good or bad, and there are people or no one in the teaching building and dormitory building, effectively achieving energy conservation and emission reduction, saving funds in the same year alone12410,000 yuan.

The school is thinking about heating, and new ideas are emerging one after another, and solar water boiling is one of them. The school boiling water room uses solar energy to heat the water to first80degrees of Celsius, then use electricity to heat until it is boiling. If it is cloudy and rainy, use electricity to compensate to ensure the school’s hot water supply. In this way, burning a bucket of water costs to heat it from the gas6900yuan, down to electric heating2700yuan, then drop to solar heating251yuan.

from2007Since the year, the school has successively carried out three phases of solar hot water heating system transformation, and the whole school uses solar heating system to prepare hot water every day383.2Tons, students' bath water, some domestic water, and canteen dishwashing water are all heated by solar w88 casino games.

[w88 casino games Saving Measures]:Time-segment heating;Flue gas waste heat recovery;Solar water hot water phase III;Water source heat pump project;Outer insulation of buildings, etc.

[w88 casino games saving efficiency]:Solar w88 casino games phase III reduces gas use115to120Cubic meters, annual saving22010,000 yuan;Integrity Building w88 casino games Saving and Insulation w88 casino games Saving54%;Economic benefits of flue gas waste heat recovery7010,000 yuan;Economic benefits of water source heat pump7010,000 yuan, reduce carbon emissions228Ton.

As of now, the University of w88 casino games Business and Economics has completed the comprehensive utilization of water resources, solar energy collection and utilization, groundwater thermal and geothermal energy utilization, and power-saving equipment and facilities, etc.17w88 casino games-saving and emission reduction projects have formed a good circulation system.

(China Education Daily2010year3month21DayNo.1version)

【Short Comment】

Universities should set an example of resource conservation

Wang Ling, Secretary of the Party Committee of the University of w88 casino games Business and Economics:

Building an economical and sustainable campus is an inevitable requirement for the development of universities by global environmental and resource issues. Universities shoulder unshirkable responsibilities and obligations in the implementation of the sustainable development strategy of the country.

Operation of good construction of an economy-saving campus is an important guarantee for the healthy and coordinated development of the economy and society, and it is also an objective need for the scientific development of universities. Against the backdrop of energy tension, the impact of the w88 casino games financial crisis on the real economy has not yet ended, and the resources for running colleges and universities are very limited, colleges and universities should become important forces in promoting the construction of a resource-saving and environmentally friendly society.

Operation of good construction of an economy-oriented campus is the need to cultivate high-quality talents with the traditional virtues of thrift and thrift and can shoulder the mission of building the motherland. College students are the future of the country, the backbone and main force of national construction. Their environmental protection awareness and sustainable development concept will directly affect the effectiveness of my country's future sustainable development.

(China Education Daily2010year3month21DayNo.1version)

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