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development and Suggestions on China's natural gas distributing energy station
1,introduction
Our country is a energy production country but also is a energy resources shortage country.With the economic development,pollution is more and more big.As is well-known to all,the energy problem has become the important factor of the restriction of economic and social development..FOR the the energy and environment, resources, and the challenge of climate change,the government put forward a diversity, clean and efficient energy development strategy.Developing a low carbon economy and changing the style of economic growth has the inevitable demand of the development of science.
The natural gas distributing energy,Can realize cold, hot, joint electricity.Greatly improve energy efficiency,reduce carbon emissions.improve the urban environment..Rapidly development in the developed countries .Distributed energy was introduced into our country have been 10 years already,but progress is slow.In recent years in the state advocates for energy conservation and emission reduction,Leading department pay much attention,distributed energy will also get fast development.
2, present situation of burning natural gas distributed energy
In recent years, our country pay more and more attention to energy conservation and emission reduction .with the country of the experts vigorously and positively promoting,The natural gas as fuel energy has distributed by academic research into the project development stage,advantages of natural gas as clean energy is more and more obvious.There are more and more people realize the important significance of distributed
energy.Natural gas in our country is high quality clean energy. High price, less resources, so how to reasonable use is the primary problem.We think the development of distributing energy is the best solutions joint cascade utilization of electricity, cold, and hot, good energy .Natural gas a coalbed methane of alternative energy, methane and straw can play an important role in the distributed gas production .But now, there is no government guidance documents in our country.All parts of distributed development distributed energy according to their own understanding and knowledge.At present ,a few city distributed energy situation can see from the form1.
According to incomplete statistics,Our country at present fuel gas distributing energy station total capacity is about 5 million kw.In Beijing Shanghai guangzhou and sichuan province, it have been put into operation .And get a good energy saving, environmental protection, economic effect.
Beijing gas group scheduling centre building energy station,after several years of operation,2008 meet 80% of the cold and heat load.Compare to the conventional energy supply way,it save about 17% of an energy one year,direct saving 900000 yuan in energy costs 900000 yuan.Chengdu deep LAN green energy center home international hotel, its energy station already have operatefor 6 years,saving 4.1 million yuan each year.Especially in 2008 after the snow disaste,there are numerous engineering construction wish to distributing energy station.
1,Oil and gas company helddistributed energy forum
According to the deploy of the State Council,National energy board is developing
new energy industry is important component.To the source development of further perfect plan, promoting natural gas as fuel,Home energy bureau in oil and natural gas company on June 24, 2009, held distributed energy forum in Beijing .
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name
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item
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capacity
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Shanghai
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project in progress
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estimate capacity 20,000
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Beijng
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project in progress
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estimate capacity 90,000
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Guangdong
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estimate capacity 100,000,Otherwise diesel engine transformation is 2.16 million KW
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Sichuan
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Capacity 132,000 KW
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others
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Project in total 106800KW
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estimate capacity 1,700,000 KW
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In tolal
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Move the production of machinery group wins gas combustion engine have been sold to the national 29 provinces and cities of gas, gas gas, coking tail gas, methane and carbon black, oil and gas field surface rock gas, alcohol gas power generation market 152 KW
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estimate capacity 5,000,000 KW
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According to the national development and reform commission about the spirit of "Construction distributed combined heat and power and combined cooling heating ",delegate put forward concerning: "research and improve on natural gas distributed of co-production of standard and policy".After the meeting,professional committee members will assist the thermoelectric natural gas company to complete the development of distributed energy guiding document (natural gas distributed energy development of countries problems related to research forreferenceof making development distributed energy
Natural gas distributed energy seminars
National energy board oil and gas company in on October 23, 2009 my kingdom distributed energy symposium of natural gasheld in Beijing
The distributed energy plan of deyang city of sichuan
May 8, 2009,the meeting about distribted energy hosted by the national development and reform commission of deyang city province .Experts review documents on clean energy company entrust southwest of huadian power of electric power design
Without power system of money and investment the power system of power generation, transmission and distribution system.Due to the user, but also built in side out the transmission and distribution system, but the line losses of increase has its own power output of the local, and distributed energy is not power system competition, but important complement, it is reliable helper.
All the fuel gas supply department should actively promote distributed energy development. Development distributed energy realize cooling heating and power, reasonable use natural gas is one of the most effective measures to gas price, 5 ~ 10% of the bonus preferential.
supporting distributed energy equipment localization. At present domestic equipment in the variety and quality with foreign equipment are has difference, several Suggestions to determine the shate offer certain support, perfect as soon as possible.
The financial system should vigorously support distributed energy development. Development distributed energy realize cooling heating and power, is a reasonable use of natural gas, is one of the most effective measures that benefits the nation each big good thing, the financial system all should fully support, can never regard it as "XiaoHuoDian" a crackdown policy. Should actively loan guarantee, money supply, suggested that interest discount.
12 suggest countries to increase distributed energy advice based research and development input. More than 90% of gas turbine domestic imports, fewer than 10% of the key parts in FeiJinKou also rely on abroad, this is inevitable the equipment is common investment cost and maintenance cost of are high. So to promote the industrialization of fuel gas CCHP equipment, in relation to reduce investment cost, improve investors with enthusiasm and enhance natural gas cooling heating and power technology market competitiveness.
13 suggested countries will Beijing, Shanghai and sichuan province for the development of natural gas CCHP determined to realize the cold and heat electricity and heating co-generation pilot provinces and cities. Beijing and Shanghai's per capita GDP are already more than 10000 us dollars, into a moderately developed level, environmental protection requirements and energy supply factors such as external support capability, should promote the use of natural gas distributed energy systems, two city air conditioning load huge, and quickly surged, direct threat grid, and power grid construction conditions and high investment, and natural gas pipe network construction basic end become, redundant systems is bigger, have a great development of natural gas distributed energy system of basic conditions.
Five, gas distributed energy will getdeveloped fast
"On the development of natural gas distributed energy guidance" to issue
In early 2010, the "national energy conference", national energy board oil and gas company to refer to the material, then to file form forwarding to the national development and reform commission in the provinces and cities for advice. This paper: development of natural gas distributing energy guiding ideology, basic principles, policies and measures and the main goal. By 2011 it is proposed to build 1000 natural gas distributed energy demonstration projects; By 2020, to promote the use of energy in the distributed system, the installed capacity to 50 million kw, and it is proposed to build 10 several typical features of distributed energy in demonstration area.
2. Electric power system began to focus on distributed energy
China electric power enterprise federation industry development "distributed power supply and micro nets technology conference, the development of relevant departments report couplet additionally representatives to participate in the meeting, experts do the related report on July 19 in Beijing.Committee of thermoelectric introduced since 2000 to leadership department for drafting the no. 1268 to the fuel gas development a gas-steam combined cycle power and distributed heat, electricity, cool co-generation, since the start of a series of work and complete energy innings last year oil and natural gas company entrusted by the Russian natural gas distributed energy development related problems of the research on behalf of attention. Cause
(2) recently institute commission recently finish (Russian energy policy and regulations of distributed problems (draft), and exchanged views with thermoelectric branch.
China huadian group was founded new energy development Co., LTD, develop the distributed energy, guangzhou college town, and after the production preparation 10 distributed energy station, total capacity is 1.38 million kw, some already through the internal review, some engineering years commenced.
At present has set up a file in a batch of distributed energy was all over China.
China southern power grid limited liability companies to the Chinese academy of sciences WuLiSuo engineering thermal for 2007 annual national 863 plan "high efficiency and energy saving and distributed for can technology project" of the goal oriented subject "Mw level of gas turbine distributed cold electricity and heating co-generation technology integration and demonstration research".
At the same time China southern power grid Co., LTD. Tianjin university, Beijing joint four party after the automation Co., LTD. For the 2007 annual national 863 plan "high efficiency and energy saving and distributed for can technology project" of the goal oriented subject "Mw grade of cold and heat electricity and heating co-generation distributed energy micro nets system grid technology and engineering demonstration" key. Subject to foshan power supply bureau JiHua road courtyard three building rely on, into a representative efficient natural gas, electricity and heating co-generation cold demonstration system.
In order to make our country distributed energy cause in the scientific concept of development have led the healthy and orderly development of China's urban gas association, The Times in the requirements established distributed energy professional committee. Branch of nationwide to integration of various resources, promote trade, different department and different areas, with the collaboration of distributed energy cause China to realize the leaping development,. Through the extensive relevant areas of policy research and consulting services, promoting technology, market development, professional training, and conference BBS and international exchange activities, and for government departments and the member unit sincerely provides the omni-directional service
China electric power enterprise federation in the electric power industry, "1025 compiled, planning, this task will be entrusted to thermoelectric branch. The main contents for: the current situation of our country, by the end of 2009, China's capacity for 24.03 million kw only gas turbine, accounting for the thermal power installed capacity of 3.69%, with only part is the cogeneration units .under the 1 Kw of single building type, are distributed energy to realize efficient cooling heating and power of the unit, because small unit capacity, most don't allow grid connections, not in power system within the scope of the statistical data, no development. According to preliminary estimate currently has nearly 5 million kw.
Development direction: because the development of gas resources in recent years, the level of utilization of CBM, foreign imports to strengthen the construction of gas pipeline and the overseas import of LNG ashore, significantly increased the gas of energy supply, make the coastal and inland provinces and cities change fuel structure has become a reality, and therefore should vigorously develop gas distributed energy.
1) industrial park
Should strengthen the planning, building large gas a gas-steam combined cycle power co-production, realize, cooling heating and power. For existing shortfalls, if a user should be hot around, transformation of the turbine smoke or back-pressure machine, and realize the power of central heating
(2) public buildings in the city
Urban development, to 30000 or more in the new project mz shall discussion of whether the distributed energy station construction, to realize the combined hot and cold.
Hospital, hotel, bank, post and telecommunications, supermarket, institutions of higher learning, the railway station, airport, sports stadiums and other public buildings should actively make distributed energy.
development goals for2015
Gas a gas-steam combined cycle power: the new 45 million kW, reconstruction is 6 million kW.
Building type distributed energy: build 1000 project.
Capacity of 8 million kW: new 59 million kW;
The original 2403 x 0.06 instead of gas turbine heating = 1.44 million kW;
The original building type 5 million kw.
According to the power "1025" planning: 2015 installed will reach to 875.8 million kw coal, gas turbine at that time is expected to total 65.44 million kw.
The coal gas turbine will account for 7.47% of the thermal power
Six concluding words
Because the situation changes, the development of fuel gas distributing energy advantage in the continuous development is perfect. The coal-fired power plants in China at present, the conditions are engineered to achieve power co-production, central heating, a gas-steam combined cycle gas power plant some also transform for cogeneration plant, such as shenzhen nanshan thermal power Co., LTD.It has now realized the cooling-heating-power supply. Everyone are for energy conservation and emission reduction, the development of low carbon economy do contribution, so we have good reason to promote the healthy development of distributed energy.
Deyang is in Sichuan which Wenchuan earthquake disaster area is located in the west, with a population of nearly 4 million. is the famous enterprise heavy industry base including the Oriental steam turbine factory whose GDP second in sichuan province.The total energy consumption of coal in 2007 is 5.34 million tons,mainly depend on outside of the coal and power.Although natural gas resources is rich,80 billion,but total energy consumption in 2007 accounts for only 17%
Combined with reconstruction of disaster district,in deyang under the jurisdiction of the shifang, mianzhu city and county district 1 2 3 range,initial planning 14 industrial park distributed energy station.Total heating load is about 800 t/h.Seven city distributing energy stationwith total area of about 450000 m² for hot and cold.all with natural gas as a energy
The number of scale and long-term will increase,System combination have several different types，gas turbine (internal combustion engine)，waste heat boiler steam ，turbine of lithium bromide absorption chiller.Planning realized will greatly improve the efficiency of the city and reducing emissions.
sichuan province will promote distributed energy.
Sponsored by the association of international copper trade, energy conservation service center in sichuan province about "distributed energy development conference" held in chengdu on Nov.11.The experts, as well as the related departments at all levels in sichuan province trade commission more than 60 people attend the meeting about " Russian natural gas of distributed energy development".They all believe that:
Sichuan province is the first put forward the provincial development of distributed energy plan is proper implementation of the policy of the central energy conservation and emission reduction,Sticking to the scientific view of development , implement the central eight ministries of the proposed the "eleventh five-year plan" period of the 10 key energy conservation project..All parts should implete the development planning as soon as possible, having a TongPan consideration on the local coal, electricity, oil, gas, solar energy, methane gas and coal seam gas, biomass energy and waste comprehensive utilization of resources, improving energy efficiency
Gradually broke industry boundaries. Electricity and the gas industry should work together to support distributed energy development,adjust the local fuel structure reducing China's carbon .All parts should positively develop certain practical experience in the multiplication service company,gradually extending to a dragon service, avoid new construction detours.
Support distributed energy equipment localization.Play the existing equipment manufacturing ability,reduce the cost of projects.City shall determine several large-scale public buildings for pilot project for more than 30000 rn3 large complex should actively recommended development distributed energy.
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To improve energy efficiency, and protect the ecological environment, from planning, system mechanism to promote energy conservation and emission reduction, and meeting the province of of all kinds of provisions work (produce) industry park, promoting the heat supply the work (produce) industry park construction smoothly.According to the national development and reform commission issued by the ministry of construction, the comprehensive utilization of coal gangue combined heat and power project construction management in the interim provisions.Guangdong province development and reform commission issued the whole province in work (produce) industry park heat, electricity, cold joint planning of files.
Suggest on development of natural gas distributing energy
According the definition of distributed energy. International distributed energy alliance l for distributed energy there is no unified formulary standard, think that countries have their own l view. Domestic academician, experts, scholars have different understanding.We think or choose in 2004, the national development and reform commission.1 use, and traditional centralized energy system, can I compared distributed source close to the load. Don't need power grid construction on distant or super high pressure.L high-voltage transmission, can greatly reduce the line loss, transmission and distribution of saving construction investment and running costs; Because both power and heating supply DuoZhong energy service function, distributed energy can effectively achieve the energy use, to achieve high cascade comprehensive utilization of energy efficiency.
The government on making urban energy consumption structure, urban energy development planning and city cogeneration planning should will give natural gas cooling heating and power energy system with proper development space.
All levels of government power, the fire and the competent department of environmental protection, in order to adapt to the development of small and medium-sized CCHP needs, should formulate the electric power grid procedures and application process, scientific and reasonable environmental regulations and related applicable fire conditions.
Distributed energy station due to cold, heat, electricity with three system in a body, the equipment system, investment, more complex, so the government should subsidy.
The leaders of the country departments organize forces Suggestions to the launch of distributed energy resources to now the investigation and study summary system
Foster highly specialized industry consultation and design team. Encourage gas, electric power industry participation in small and medium-sized gas CCHR investment, construction and management, and for small cogeneration provides the technical support and services. In order to ensure that small and medium gas cooling heating and power system, the economy of the power generation equipment capacity often less than the building or the scope of supply CCHP complex engineering design of electric load, that means building power also need the utility to safeguard, needs and ShiWang parallel operation. Small and medium CCHP enterprise distribution in different industries, they know there are defects in the CCHP existing design method can't guarantee design personnel accurately grasp the actual planning area of cold and hot, electricity load, often capacity will lead to choose big unit capacity, operation of the system, caused difficulties in comprehensive hours of operation is reduced greatly. So for the development of the CCHP system, forming a highly specialized consulting design organization for small and medium-sized gas cold heat development of the electric heating co-generation system is very important.
The environmental protection department should formulate the policy support distributed energy construction. Distributed energy system because realize the good energy, energy efficiency, the rational use of cascade can reach 80%, more than coal-fired power units a times, S02 and solid waste discharge is almost zero, greenhouse gas (C02) reduced by more than 50%, NOX reduced by 80%, and the TSP reduced by 95%, and covers an area of the water consumption and reduced by more than 60%. Flexibly start, emergency power supply to ensure the safe, according to user needs may realize the cold heat electric heating co-generation and should, therefore, and develop distributed energy as developed countries