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New trend of household heating by gas wall hanging furnace |
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TIME: [2017/2/17]
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Application prospect of household heating by gas wall hanging furnace
Introduction: in our country's energy conservation. Coal accounts for about 74%, accounting for about 18.6% of oil, natural gas accounts for about 1.7%, hydropower and nuclear power accounted for about 5.7%. The coal based energy resource structure of low efficiency, serious environmental pollution. With the national planning and construction in 11th Five-Year. The proportion of natural gas in China's energy structure will be greatly improved, which is of great significance to adjust the energy structure and increase energy reserves.
Background links: urban central heating began in the former Soviet Union, household heating originated in Western europe. Wall mounted gas boiler is the main products of Western European countries such as Germany in 1998. The heating gas bigualu for domestic gas boiler Market in Europe in 73%.2003 state of wall mounted gas boiler production reached 500x10 / A. heating mode and each country's cultural and geographical location. And also related to the type of housing construction. For example, most residential buildings in the United States are single family homes, so that almost no central heating is used in civil buildings. In our country, household heating has a lot of applications.
General situation of natural gas source in China
Survey data show that China's natural gas supply and delivery of the rapid development of natural gas heating provides a reliable guarantee.
West east gas supply capacity of about 120*10m3 / A, mainly to the Jiangsu and Zhejiang area gas; Sichuan East gas supply capacity of about 100x10m3 / A, mainly to Sichuan, Hubei and Hunan to supply gas pipeline; main gas range expansion Shaan-Jing for Shanxi, Beijing, Tianjin, Western Shandong and Hebei etc.: Boxi gas to Eastern Shandong gas; Shaanxi and Sichuan gas combined gas to the Yangtze River Delta and Shaanxi and Henan to supply gas supply. The East Pinghu gas field to continue expanding supply to Shanghai, Shaanxi, Jingbian and Inner Mongolia to Ningxia natural gas supply pipeline; Qinghai Sebei to Lanzhou to Qinghai and Gansu gas supply to Xinjiang; Karamay oilfield; Daqing oilfield gas supply to Harbin, Liaohe oil field gas supply to Shenyang: South China Sea natural gas to Hainan and the East China Sea oil and gas in Guangxi. Gas supply to Wenzhou: Guangdong, China imported LNG for local use: the introduction of natural gas pipeline from Russia and Central Asia to supply the northeast and Beijing area of our country, the project is expected to achieve in 2008.
Economic analysis of gas wall heating
1, gas wall hanging furnace unit cost
At present, part of the gas wall hanging stove in our country is imported from Europe and South korea. European products are generally divided into 3 models, respectively, 18-20kw, 23-24kw and 28-30kw heating area of 160m. , 220m. And 280m 2 price of 5000~8000 yuan / taiwan. Domestic product price of 4000-6000 yuan taiwan. After calculation, the cost per unit area of gas wall hanging furnace is about 40~60 yuan / m2, which is lower than that of central heating.
According to the survey, Dalian, Anshan, Shenyang, Baishan, Harbin, Qingdao, Yantai capacity fee / (yuan.M-2) were 60, 70, 5570, 50, 100, 80 yuan, thermal price / (yuan). Were 18, 21, 17.5, 17.4, 18, 18, $24.5.
2, gas wall hanging furnace gas consumption
The sampling survey in the northeast of Dalian, Shenyang and Harbin, the general weather condition. If the heating houses of about 100m2, the average number of heating consumption of gas (natural gas), gas boiler, gas boiler, heating gas consumption (m /. .d 1) were 7-9, 9-13, 11~15.
Present situation and forecast of gas heating heat load
1, residential heating load
Present situation and forecast of residential heating load. Which accounted for 45% of residential energy saving in 2004 is expected to account for 20%.2007. 2004 heat load of each heating zone: 6.9x10 8.41.29.8x10 859.114 2x10 826.5. 2007 heat load is expected in each heating area: 49.1 x 10847.8 x 108697 17.2x10 833.5.
2, 2007 residential gas heating load forecasting
In 2007, the popularity of city gas heating rate is about 20%--.25%, which accounts for about 14%~19% of gas boiler heating central heating system for gas heating accounts for about 5%. of domestic gas wall heater accounted for about 5% 1%~1. 2007 residential heating gas heating load forecast, the type of gas for natural gas.
The gas wall hanging stove can be used as a unit house or villa with a small area for heating, and the utility model can realize the dual supply of heating and domestic hot water simultaneously. Installation of indoor temperature control device, can be adjusted in different room temperature; there is no one in the house, only to lower the temperature, to ensure that the circulating water does not freeze. Adding timer can be preset starting time: skip the boiler room, heating costs. To reduce environmental pollution, also can realize the measurement for heat. The development of gas heating is the government behavior, the government formulated preferential policies will promote the development of gas heating. According to a consulting firm in Shenyang statistics, consumer attitudes towards heating methods: central heating household heating rate of 46%. with the approval rate was 44% (of which 23% household central air-conditioning, household gas boiler is 21%). From the trend of demand analysis, household heating will become a new trend in market demand. Because of the advantages of economy, convenience, environmental protection and so on, the application of gas wall hanging furnace is promising.
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