Heating research report 1
Urban heating is an important livelihood project involving thousands of households. According to the requirements of CPPCC survey notice, in order to improve the construction of urban heating system in our city, this paper puts forward measures to promote the development of heating in our city on the basis of in-depth analysis of heating problems.
I. General situation of heating
The population of the city is 1.55 million, with a total of 560,000 households, including 956,000 urban residents and 235,000 heating users. District central heating began in the late 1970s, mainly using the waste heat from Benxi Steel as the heat source. The temperature of the remaining hot water is generally 40-50℃, and the maximum is not more than 60℃. Since then, other heating modes and heating areas have been developed.
(A) the basic situation of heating enterprises
According to the data provided by the Municipal Heating Office, the total heating area in the main city of our city is 20.4 million square meters. Urban heating enterprises 14, four of which are mainly:
Benxi Iron and Steel Thermal Power Development Company has a heating area of 7.62 million square meters. The main heating areas are: residential areas and suburbs of Benxi Steel in urban areas (Waitoushan and Nanfen).
Hengze Thermal Power Development Co., Ltd. has a heating area of 7 million square meters. The main heating areas are Zhuanshan, Wolong and Caitun.
The heating area of Benxi Pan Asia Environmental Thermal Power Co., Ltd. is 3.5 million square meters. The main heating areas are: centering on the main factory area, becoming a family in the east and reaching the DPRK in the south.
West to 12 middle school, north to xiaohuashan.
Benxi Huaxing Thermal Power Co., Ltd. has an existing heating area of 6.5438+0.6 million square meters, and the main heating area is the southeast of the city.
The heating area of the above four companies is197,200 square meters, accounting for 96% of the city's total heating area, and the heating area of the remaining 10 companies (edge communities such as Prince Edward City and Chengde Jiayuan) is nearly 700,000 square meters.
(B) the status quo and transformation of heat sources in major enterprises
(1) The main installed capacity of Bengang Thermal Power Company: 28 boiler rooms, 70 pump rooms and 94 boilers, with a total capacity of 780MW.
Transformation: in 2009, part of the cement pipe network was transformed and a new cement heat exchange station was built; The next plan: build new coking, power generation, Pingshan, Dianer and Xiyuan heat source plants.
(2) The main installed capacity of Benxi Hengze Thermal Power Company: 3 boilers of 58MW, 6 boilers of 29MW and 2 boilers of 14MW, with a total capacity of 376MW.
Transformation: In 2005, Caitun Heat Source Factory expanded a 58MW boiler, and in 2006, three 29MW boilers were rebuilt, laying Caibei heating pipe network 10km. Three new 29MW chain boilers, two 14mw chain boilers were built in Zhuanshan and Wolong heat sources, and the pipe network was laid for 9KM. In 2009, Caitun Heat Source Factory expanded two 75t/h boilers and laid the West Lake. Next step plan: Complete the expansion project of two 75t/h steam boilers and the construction of corresponding heat exchange stations in Caitun Heat Source Plant on 20 10.
(3) Main installed capacity of Benxi Pan Asia Environmental Thermal Power Company: 4 75t/h boilers and 3 65438+200,000 kWh units.
Renovation: 65438+2000 kWh standby pressure unit was newly installed in 2006, 75t/h boiler was newly installed in 2009, and heat exchange stations and supporting pipe network projects in Yi Yin, Jincheng and Chengjia residential areas were newly built; Next step: Plan to invest in the development of eastern cities.
65.438+0.5 billion yuan, two 65.438+0.60-ton boilers will be expanded, and it is planned to invest 36.5438+0.00 million yuan to adjust and transform the heating pipe network in the region.
(4) Main installed capacity of Benxi Huaxing Thermal Power Company: 3 58MW hot water boilers. Renovation: 7 new heat exchange stations were built in 2007 and 2 new heat exchange stations were built in 2008, equipped with automatic control system of heating pipe network; Next plan: build a new 70MW boiler, and the heating sub-network lines of Digong Road and Yulong Road are 4 kilometers.
There are 63 boiler rooms, 67 boilers/kloc-0, 9 boilers over 75 tons, 30 boilers over 10-40 tons, and boilers under 10 tons/0/05 boilers.
(III) Current situation of heating pipe network
The heating pipe network in the main urban area of our city is laid with metal cast pipes, mainly buried. The total length of the pipe network is 883km, including 5 waste heat heating pipe networks (Benxi Iron & Steel Co., Ltd., No.2 Power Plant, No.3 Power Plant, Coking Plant and Cement Plant), with a total length of 276.8km and a heating area of 47 1 1,000 square meters. At present, most heating pipe networks are in extended service. Among them, the service life of 42% exceeds 15 years, and10-15 years accounts for 13%. In particular, the extended service of the waste heat heating pipe network in Benxi Steel is the most serious. In order to speed up the transformation of heating facilities and improve the heating guarantee capacity and heat energy utilization efficiency. In 2009, in order to solve the problem of insufficient funds for the renovation project of heating pipe network, the municipal government granted a unified loan of 450 million yuan, which was mainly used for the renovation project of cement pipe network in Benxi Steel and the renovation of the old thermal pipe network in Hengze City.
Second, the main problems
1, heating pipe network facilities aging, frequent accidents. At present, the service life of the five major waste heat pipe networks and the three major heating enterprise pipe networks in urban areas is mostly more than 15 years, among which the service life of the waste heat pipe network of Benxi Iron and Steel Co., Ltd. has reached more than 30 years. Because it has not been completely reformed for many years, some existing pipe networks have been scrapped and will burst at any time. In addition, other old pipe networks that use boilers for heating (except the new heating system built after 2000) also need further transformation. According to the statistics of relevant departments, in the coldest period of winter, pipeline blasting accidents occur frequently, the emergency repair period reaches 7- 10 days, the annual water loss is about 1 1.2 million tons, and the cost is more than 30 million yuan. These accidents have caused many social problems.
2. The thermoelectric unit is small, so it is difficult to meet the demand of large-scale central heating. The existing thermal power plants in the east of our city are small in scale, and the heating area is increasing year by year. It is necessary to increase boiler room and circulating pump station to raise the temperature, which increases the operating cost.
3. The existing small boiler room has low thermal efficiency, high energy consumption and serious pollution. The thermal efficiency of small boilers is lower than that of central heating by more than 20%. At the same time, environmental pollution is also a difficult problem, such as dust and sulfur dioxide emissions, waste residue and coal storage area, which have not been solved for a long time, seriously affecting the urban environment and image.
Three. Measures and suggestions
1. Actively promote cogeneration projects to alleviate the contradiction of insufficient heat sources.
In 20 10, it is planned to start the construction of Benxi cogeneration project, with an installed capacity of 2×350MW, an investment of 3.02 billion yuan, an annual power generation of 3.3 billion kwh and a heating area.
170,000 square meters. After completion, the city's heating capacity will be doubled, and 63 small boiler rooms and 2 small heat source plants will be demolished. Retired units 10, installed capacity166,000 kW (retired units132,000 kW in Benxi Steel, 24,000 kW in Pan Asia), saving 436,200 tons of coal annually. After the completion of this project, it will not only provide stable and reliable heat source guarantee for urban residents, improve the atmospheric environment, meet the national requirements of "energy saving and emission reduction", but also greatly alleviate the contradiction of electricity consumption in the whole region.
2. Actively raise construction funds and intensify the transformation of pipe network.
In recent years, there are many renovation projects of heating pipe network in our city, and the investment is large. Municipal Development and Reform Commission cooperates with relevant departments to actively strive for construction funds. Since 2008, ADB has used a total loan of 1 1.86 million dollars to build and renovate a 28-kilometer pipeline network. In 20 10, it is planned to start the construction of the central heating project of Benxi Iron and Steel Thermal Power Development Company, with a total investment of 260 million yuan (building a water treatment plant, with a total heating pipe network of 9 kilometers and 5000m3/h), of which the World Bank loan of 654.38+300 million yuan has been obtained. Recently, Hengze Company plans to build a new heating pipe network project of 69 kilometers, with a total investment of 65.438+0.4 billion yuan, which has been reported to the Provincial Development and Reform Commission, and plans to strive for 20% national and provincial investment subsidies. The completion of these projects is of great significance to the infrastructure construction and environmental improvement in Benxi.
Heating research report II
In winter, Wuhan is located in the only place where the polar continental air mass goes south. The temperature drops suddenly, and the extreme minimum temperature reaches-19 degrees Celsius, which often makes people feel dripping into ice. And Wuhan doesn't have heating like the north. In the past, people who had the conditions baked charcoal fire, but the poor had to carry it hard.
The heating market in Wuhan is relatively hot. There is also a great demand for heating products. Similarly, in Wuhan, household independent heating system is really favored. There are also some big brand wall-hung boiler products that are represented and operated here, such as ariston wall-hung boiler, Faruoli thermal heating equipment, Weineng German Weineng Group wall-hung boiler, Guangdong Wanhe heating wall-hung boiler, Weimar only wall-hung boiler in the United States, Hillbo wall-hung boiler and so on. In radiator heating, the main agents are: Longxing radiator, Xinjiasi radiator, Ningshuai radiator, Beijing Isapu radiator, Qingdao Huatai radiator and other well-known domestic brands.
There are also many agents selling consultation, design, construction, installation and after-sales service of heating products such as wall-hung boilers and radiators. Basically, it can provide a variety of heating schemes such as gas, oil, radiator heating and floor radiant heating, and undertake a variety of heating projects such as government, hotels, enterprises, family houses and villas.
Among them, the more popular household independent heating system, with domestic boiler as heat source, gas as heat source and water as heat medium, is mature, popular, mainstream, comfortable, safe, energy-saving and environmentally friendly.
Because water heating is recognized as the best heating method for human comfort, independent heating by households has the characteristics of flexible opening and self-integration, and it is a heating method with high comfort.
It is understood that after the snowstorm at the beginning of 20 13, the heating in this area was basically promoted, and people's awareness of heating demand was greatly improved. At present, some families have begun to install home heating facilities, and the future demand situation is also very optimistic. In Shiyan, Hubei, the heating market is also relatively strong. After the snowstorm, the citizens in this area also realized the importance of heating. Because there is no heating system, home heating has also become popular.
Investigation report on heating market in Jiangsu and Guangdong
Jiangsu has always been a weak position in the heating market. Due to the climate and the weak heating awareness of southerners, we realize that people's heating awareness and demand for the southern market have not changed much compared with the past!
Most of the heating distribution methods in Jiangsu are mainly heating retail, but after the snowstorm this year, compared with previous years, the sales volume has not fluctuated greatly! The products mainly distributed by dealers are wall-hung boiler products, and most of them are brand products, such as Guidu Milla, Weineng and Demerard. Radiators generally have some well-known brands such as Datong, Yuma and Nuoluo, or they sell local products directly. Through the understanding of most dealers, this year's snowstorm in the south did not play a great role in promoting the heating of southern families. According to the survey, although people really need to keep warm after experiencing the snowstorm in the south, they also realize the importance of keeping warm, but people think that the snowstorm is a disaster after all and will not happen every year. Therefore, people's awareness of the demand for heating is still very strong.
The dealer market in Guangdong and Guangxi is also particularly difficult to do, and the dealer update speed is very fast. It is common for many dealers not to do it for a year or two!
Heating research report 3
Shanghai is the largest city in China, the eighth largest city in the world, one of the four municipalities directly under the Central Government of China, and the largest economic center and trading port in China. There is much rain, no freezing period, hot summer climate and many rivers and lakes. It's cold in winter and hot in summer. Air conditioning is the basic heating method for Shanghai residents in winter, and some people still follow the traditional lifestyle without heating. Besides habits, the main reasons are high heating cost and poor comfort. With the adjustment of urban energy supply structure, building energy saving and the improvement of people's living standards, heating began to shift from basic demand to higher health demand. New heating methods are constantly emerging, and heating and heating will further develop in the direction of energy saving, environmental protection, beauty and practicality. Creating a comfortable, environmentally friendly and ecological healthy living environment for modern people is the future development goal of Shanghai heating industry.
First, opportunities and challenges coexist in the floor heating industry in Shanghai.
Generally speaking, the development of heating industry in Shanghai is still relatively slow. However, the development of floor heating in Shanghai is still good, mainly villas, apartments and duplex small high-rise buildings. Shanghai people live in high-grade houses with a high proportion and a strong consumption concept. If they buy a big house, they will inevitably choose the relevant supporting decoration. The advantage of floor heating is that it does not occupy space and is comfortable; Secondly, floor heating is 30% ~ 40% more energy-saving than air conditioning, and it is also cost-effective. In the decoration of high-grade villas in Shanghai, 90% of the owners have used floor heating equipment.
However, most people have insufficient understanding and choice of floor heating products. As far as the current situation of Shanghai floor heating market is concerned, this industry is not a high-tech industry with low entry threshold, and it is a new thing with certain market development prospects. So in the past two years, large and small floor heating companies have blossomed everywhere, and some small floor heating companies have only two or three professionals and bosses. The prices of the same type of products in the market are also quite different. A set of equipment purchased by consumers in a medium-sized company may have a price difference of more than 30% in a small company. Many people who know nothing about floor heating choose cheaper products under the same conditions.
Second, the professional brands of wall-hung boilers are mostly
From the comparison of wall-hung boiler brands, it is mainly divided into three parts: domestic, Sino-foreign joint venture and foreign capital. In terms of market share and utilization rate, foreign brands are dominant. But in the low-end market and local areas, domestic brands also have their own characteristics and advantages. The main foreign brands of Shanghai wall-hung boilers are Italian Faruoli, Beretta, Baxi and Yima. German Weineng, Bosch, wiesmann; Shaf in France and so on. These brands are in the leading position in the industry in terms of quality, reputation and service. Therefore, it also determines its high price and is influenced by many high-income people. Joint venture brands such as Squirrel and ariston have gained a certain market share by relying on advanced foreign technology, management and financial support. Brand is the most advantageous weapon to occupy the market. Domestic brands are mixed, and Shanghai is a special market. Over time, it is inevitable that the brand can represent our national industry.
Third, radiators are difficult to popularize.
The installation rate of radiators in Shanghai is not very high. The first reason is that there is less central heating in buildings in Shanghai. Compared with high-rise buildings, it is not very suitable for a single household to install radiators. The second is the difficulty of installation. There are few professional radiator installation teams in Shanghai decoration company, which also limits the development of radiator market in Shanghai to some extent. Third, it is generally believed that the heating period in Shanghai is only a few days a year, and the auxiliary heating method can completely survive the winter. Central heating not only costs a lot, but also takes several days, which is relatively a waste. It takes a long time to change your mind.
Fourth, air conditioning is still the main heating method.
Shanghai's climate characteristics and geographical advantages, coupled with the warming of infrastructure and economic development, have promoted the development of air-conditioning industry, and central air-conditioning has begun to enter more citizens' families. In the first half of _ _ _, the sales volume of ordinary air conditioners in Shanghai decreased by nearly 15% compared with the same period of last year, mainly because some customers were taken away by household central air conditioners. In addition, due to rising raw materials and other factors, more than 90% of the air-conditioning prices have increased compared with _ _ _, with an average increase of about 6%. It is estimated that the total installed capacity of ground source heat pump and water source heat pump in 20 13 years will be about 10 billion yuan. There are more than 50 brands in Shanghai, and the competition is fierce. The market competition between domestic brands and international brands can be said to be equal. Midea air conditioner is very strong in Shanghai and can play the role of market leader. The market advantages of Midea's air-conditioning products are mainly reflected in advanced technology, excellent performance and reasonable price, and it has its own complete and advanced system in market development and after-sales service. Tsinghua Tongfang entered Shanghai in _ _ _, and gradually influenced and infiltrated from the surrounding areas of Shanghai, making this northern brand gradually gain a piece of world in the Shanghai market. In addition, foreign brands such as Carrier, Fuller, Trane and Macquarie all regard China as their most important market. They have their own characteristics in marketing strategies and models, especially some manufacturers have realized the localization of production, reduced costs and made their products more competitive. However, one thing that needs our attention is that more and more Shanghainese are concerned about the dryness and discomfort of air-conditioning heating, and more people prefer floor heating and wall-hung boiler heating. This may also lead to new market competition.
There are many reasons for heating in Shanghai, so it is impossible to install traditional heating and district heating systems as in the north. However, according to different housing types and homestead conditions, we can still choose a variety of heating methods to fully meet the healthy and comfortable living needs of residents. The concept of heating is deeply rooted in people's hearts, and the cause of heating in Shanghai is in the ascendant. The heating industry will usher in a huge development space in the application field and bring unlimited business opportunities to heating enterprises.
Heating research report 202 1 Examples of related articles:
★ Investigation Report on Building a Well-off Society in an All-round Way 202 1
★ Investigation Report of College Students 202 1