President Shi Jianjun attended the 4th Chinese and Foreign University Presidents Forum
Advocate green campus construction Recommend w88 casino’s construction experience
w88 casino News(Reporter Xiaofeng)The 4th Forum of Chinese and Foreign University Presidents opened in Nanjing on May 2. Member of the Political Bureau of the CPC Central Committee and State Councilor Liu Yandong attended the opening ceremony and delivered a speech. Minister of Education Yuan Guiren presided over the opening ceremony. This forum is based on“Improving the quality of university talent training”With the theme of 6992_7065|, exchanges and discussions were held around topics such as innovative talent cultivation, teaching model innovation, quality assurance and evaluation, green university construction, and university-enterprise cooperation. from 9 countries as well as mainland China, Hong Kong and Macao150Presidents of more than 100 well-known universities attended the forum. Shi Jianjun, the principal of w88 casino, was invited to participate and attended the event5month3Made an introductory speech at the parallel forum held on the afternoon of 7174_7202| The content of the speech was published by Forum No.19Excerpts from issue "Briefing".
The title of Principal Shi Jianjun’s speech is "Create a low-carbon campus Building a Green University——Achievements and experience in the construction of the w88 casino".
President Shi Jianjun pointed out that a green university is marked by green, energy-saving, environmentally friendly, low-carbon and low-emissions. The foundation is to create a green education system and establish a low-carbon energy support system. The core is to increase the application of new energy technology in the university's energy support system, innovate energy-saving management systems and mechanisms, and change and innovate new concepts of environmental protection and development. Countries around the world attach great importance to campus conservation and green campus construction. As early as1972The concept of green schools was proposed at the Stockholm Conference on the Human Environment in 2015.1994Year UNESCO (UNESCO) Actively advocates "sustainable education",1997USA30More famous universities have joined the Environmental Protection Universities Alliance (The Campus Consortium for Environmental Excellence),2007American Principals Alliance on Climate Change Agreement 318The "People and the Planet" environmental protection and energy saving movement launched in the UK with schools as the stage and students as the main body has55Joined by colleges and universities.
President Shi Jianjun pointed out that building green campuses and low-carbon campuses is an inevitable requirement for colleges and universities to implement the scientific outlook on development. It is the social responsibility of colleges and universities. It is a major event that benefits the country and the people and is related to future generations, so it must be given high attention and importance. Strengthen the supervision of energy-saving and water-saving operations, design new buildings with reference to the green building indicator evaluation system, promote the application of new technologies and renewable energy, and intelligent building systems, establish an energy consumption indicator system, and strengthen the energy consumption disclosure system. Comprehensive green education system, international university green alliance, etc. will become the direction of green university construction in the future. As long as we continue to work in this direction, a new, energy-saving, environmentally friendly, low-carbon emission green university will surely be realized.
President Shi Jianjun introduced the idea of building a conservation-oriented campus at the w88 casino2000It has been brewing since200322energy conservation and emission reduction projects have achieved good economic and social benefits.2007-2009Year4In March, w88 casino achieved an average annual decrease in public operating expenses11.26%, the average annual direct savings is about118010,000 yuan;2009Year4In the next few months, energy-saving projects such as the third phase of solar energy and the renovation of the external wall insulation of the Chengxin Building will be carried out. According to incomplete statistics, annual direct savings will be achieved210010,000 yuan,410119_101312007Year9Month, in the National Development and Reform Commission, Central Propaganda Department, etc.14Joined by several ministries and commissions“Large-scale theme publicity event for national action on energy conservation and emission reduction”, w88 casino was identified as one of the first batch in the country by the Ministry of Education“Energy Saving and Emission Reduction w88 casino Action Theme Educational Activities”Advanced pilot universities.2009Year4month, identified as by Beijing City2008In 2010, "conservation-oriented schools" were built into excellent colleges and universities.
Principal Shi Jianjun introduced the main measures of w88 casino’s green campus construction from five aspects.
(一)利用再生水资源,最大化节约用水
1. Build a gray water treatment station to recycle waste water.w88 casino is in2004The reclaimed water treatment station construction project was launched in the middle of this year and will be completed in2005Year1The daily sewage treatment capacity completed in month is1,000ton of gray water recycling and treatment station. The source of sewage from the reclaimed water treatment station is mainly to collect bathing water from student bathrooms, as well as some dormitory building wash water and pipe network sewage. In order to avoid secondary pollution of water, we chose“Physics+Biochemical”method to treat gray water raw water. Over the past five years, we have regularly conducted sampling tests on the treated reclaimed water, and all of its indicators meet the national water quality standards for urban sewage recycling. The treated gray water is mainly used for flushing toilets, greening water and landscape water. w88 casino70%12180_1220730,000Daily watering of square meters of green space, as well as campus landscapes such as square fountains, artificial lakes, pools and waterwheels. With the putting into use of the reclaimed water station, w88 casino's water conservation work has achieved great results. with2004Node comparison before and after it is put into use.2004年我校全日制在校生人数为12,473people, campus building area272,430square meters, green area63,446square meters, annual water consumption578,944ton.200512569_1258315,553people, campus building area397,598square meters, green area74,613square meters, the increase is24.69%,45.94%and17.60%,, the estimated water consumption is1,089,746tons but the actual annual water consumption is588,772tons, save water500,974tons, saving amount45.97%, the benefits are very significant.
2. Recycle rainwater.Rainwater is a high-quality source of miscellaneous drainage water. Recycling rainwater as a secondary water resource has become another measure in our water-saving work. in2005-2006年,通过一年多的努力,我校在校园内先后建成了4Reservoirs. During the construction year, a total of approximately rainwater was collected40,000ton. Rainwater resources are relatively scarce in the north, and precipitation is particularly precious. Another important measure to recycle rainwater is the “flat to slope” project on building roofs.2007year, I proofread9The roofs of the student apartment building, the old library, and the audio-visual education center have been transformed from flat to sloped. The completion of this project not only enhances the waterproofing capacity of the roof, improves the insulation effect, and extends the service life, but also enables the collection and utilization of rainwater.2007There is abundant rainfall every year, and the collected rainwater is about50,000ton.
3. Comprehensively adopt water-saving measures and build a "three-dimensional" water-saving system within the w88 casino. The w88 casino improves water facilities, grass seed modification, uses water-saving equipment for greening and watering, and uses bathrooms and boiling water roomsICThrough measures such as blocking and comprehensive repair of pipelines, the daily management of water conservation work has been strengthened, and a "three-dimensional" water-saving system with the reclaimed water station as the leader has been built.
Through the above water-saving measures, despite the continuous increase in w88 casino's building area, green area, and number of teachers and students, w88 casino's water consumption has not increased significantly, but has decreased. w88 casino2006年(基年)实际水费支出为325.26Ten thousand yuan.2007The actual annual water fee expenditure is268.9210,000 yuan, down 17.3%;2008The actual annual water bill expenditure dropped to203.3710,000 yuan, a month-on-month decrease24.4%;2009The annual actual water fee expenditure dropped again107.82Ten thousand yuan, another decrease from the previous year95.5510,000 yuan, another decrease from the previous month47%. If2009Year and2006年相比,更是减少了水费支出217.4410,000 yuan, a decrease of66.9%;2007-2009The three-year average annual expenditure decrease is40.55%。
(2) Comprehensively carry out scientific electricity use and conservation, and build an energy-saving campus
2006Year to Year200916543_167762009w88 casino is approaching420street lamp (840light tubes) were replaced with solar street lights, the project has been completed80%. Savings can be made throughout the year after the project is completed40,000kWh of electricity can reduce carbon emissions38.14ton.
2009Year9In March, the w88 casino upgraded the transformer equipment in the power distribution room with new energy-saving technology, changing the lighting voltage from220Volume drops180V. To implement measures to reduce the lighting voltage, a week-long trial was conducted on the third floor of the new library. The results showed that power can be saved without affecting the lighting effect30%To35%。
w88 casino2006Actual electricity consumption in year (base year)131310,000 kWh, electricity expense is919.110,000 yuan;2007-2009Total electricity expenses for three years1882.6510,000 yuan, average annual electricity consumption896.510,000 kWh, electricity expense627.5510,000 yuan, the average annual expenditure decrease is31.72%。
(3) Multiple measures to save the use of natural gas
1. Renovate the water balance control system of the heating pipe network. Energy consumption during the heating season in the north is very large.200523977_241122005Heating area before annual heating water balance transformation27.210,000 square meters, using gas345.410,000 cubic meters; after transformation,2005The w88 casino will add new heating area in the second half of the year14.3In the case of 10,000 square meters, natural gas should be used based on the gas consumption per square meter before transformation52710,000 cubic meters, the actual gas consumption is only39810,000 cubic meters, save gas12910,000 cubic meters, gas consumption saving24.5%。
2. Recover boiler flue gas waste heat to reduce the use of natural gas.2007During the summer vacation of 2017, w88 casino implemented a flue gas waste heat recovery project. The original gas boiler was transformed into a condensing waste heat recovery boiler, and by using advanced heat pipe condenser equipment, the boiler exhaust smoke was reduced up to150degrees of waste heat is recovered and used for heating and circulating water back to48After entering the water supply system again after about 28030_28073|degrees, it indirectly increases the thermal efficiency of natural gas and directly reduces the usage of natural gas.After comparison, it was found that the monthly natural gas consumption decreased9-10Ten thousand cubic meters. If you pressA heating season4Calculated in months, the recovered boiler waste heat is equivalent to an annual reduction35Use of 10,000 cubic meters of natural gas.
3. Harness solar energy and reduce natural gas use. The water used for bathing in the bathroom was changed from gas to solar heating. since200729759_29803383.2tons, total collecting area:4990m2, where4675m2for45℃Hot water supply,315m2Used to preheat boiling water. Bathing water in student dormitories, some domestic hot water, and dishwashing water in the canteen are all heated by solar energy. The solar hot water preparation system, according to preliminary calculations, w88 casino can reduce the use of natural gas every year115-120Ten thousand cubic meters.
w88 casino2006The actual annual natural gas expenditure is1222.84Ten thousand yuan.2007-2009Total natural gas expenses in three years3660.9210,000 yuan, average annual expenditure1220.3110,000 yuan, excluding the impact of price increases,2006To2009Average annual decrease7.89%。
(4) Transformation of building exterior wall insulation to improve building energy-saving effect
Most of the existing buildings in the w88 casino were built in the 1980s and 1990s. The insulation of the exterior walls was not considered during the design of the buildings. The insulation performance of the buildings cannot meet the requirements of the current design specifications. The exterior windows are not thermally insulated windows, which results in increased energy consumption, cold winters and hot summers, which is very inefficient.2009Year, meThe w88 casino has carried out energy-saving renovations on the Chengxin Building, the main teaching building. The building area is26857square meters,将原钢窗更换为隔热保温铝合金保温窗,外墙进行了外保温改造。改造后建筑物内保温效果明显,按照理论计算,改造后可节能54%。
(5) Adopt advanced water source heat pump technology to realize the utilization of renewable energy
2006In the year, the w88 casino was in the new library (building area25000square meters) The underground source heat pump air-conditioning system was used in the project, and a total of special funds were invested1050Ten thousand yuan, constructed simultaneously with the infrastructure installation project. The groundwater source heat pump air-conditioning system extracts the heat and cold sources of groundwater for heating in winter and cooling in summer. Therefore, there is no need to use natural gas for heating or install a conventional air-conditioning system, basically achieving zero emissions. The actual use effect is very good, the temperature is constant all year round in a comfortable state for the human body, and it is known as the most comfortable study and office space in w88 casino. The use of underground water source heat pumps for heating can save two-thirds of the energy per year compared to electric boilers and one-third compared to gas boilers.
200938699_387241200Ten thousand yuan, used to install geothermal air conditioning system. Scientific research building201139271_39323