There are Yunshan Pines and Dicui, and there are no rivers and dams. The gorge stays in poverty, and the cliffs look sad
The spectacular scenery of the peaks and lakes, the lake has a good climate in Qiandao. Invert Black and White, Expressing Intelligence
In recent years, China’s hydropower development has been plagued by environmental impact assessments. A few amateur environmental protection personnel and several media have echoed with the “Chinese dam threat theory†of the New York Times and other foreign media and strongly oppose hydropower construction projects in the Jinsha, Nujiang and Yarlung Zangbo river basins. This has affected the views of environmental protection authorities and decision-makers on large-scale hydropower projects and delayed the hydropower development process. This situation cannot but lead people to think seriously about China's overall strategy for hydropower development.
Development of hydropower strategic significance and goals
The direct purpose of hydropower development is to avoid river water flow, reduce energy losses, make full use of clean renewable water energy resources, and optimize the energy structure. At the same time, many other benefits will accompany it. For example, it can improve the traffic and ecological environment on both sides of the dam and around the reservoir area, form new scenic spots, regulate local micro-climates, help develop fisheries and tourism and tourism, and help mountainous people in the river basin get rid of poverty, reduce poverty, and reduce the number of people living in poverty. The disparity between rich and poor in the region.
Of course, the above benefits are all based on the overall perspective. All things have advantages and disadvantages. The construction of a mountain pavilion is pleasing to the eye, and it is inevitable to pull out a few trees. Building houses for human habitation will also occupy a few farmland. Even living in remote caves has drawbacks that will certainly hinder the free activities of other nearby wild animals. If all the malpractices of this kind are not tolerable, then humans will not only have no place in the earth, but in the entire universe.
Therefore, the logic that is in line with human interests can only be based on long-term considerations. We must balance our pros and cons and weigh the pros and cons. We must dare to do more good than harm, and try to avoid doing more harm than good. Following this logic and considering the changes in mountains and rivers according to human aesthetics, it is not difficult to draw the following conclusion: For all major rivers and rivers on the earth, they should go through detailed surveys by water conservancy and hydropower and landscape experts, carefully selecting the dam sites, and proceeding in an orderly manner. Stepwise integrated development. The rest of the world does this. China is no exception!
Furthermore, as China’s hydropower development process lags far behind people, the loss of water energy is huge. As a kind of remedy, it is necessary to further enhance the strategic objectives of hydropower development, make full use of the advantage of late development, make more use of comprehensive development, and take hydropower In close connection with water resources, tourism and leisure and fishery farming will be promoted together to make mountains and rivers more beautiful, making rivers an extremely valuable asset for humanity.
Strategic opportunities for comprehensive hydropower development
Based on the current situation and looking forward to the future, the ecological environment has received increasing attention. Looking around the world and examining life, tourism and leisure began to rapidly spread to low- and middle-income people. The rapid advancement of science and technology, the continuous improvement of production efficiency, the conscious control of the total population, and the limited amount of material consumption for food and clothing have allowed manual workers to work as if they were their predecessors. Considering the vigorous development of robots R&D and applications, apart from schoolchildren and excellent researchers who are thinking about day and night, as well as struggling politicians who are tired of campaigning, for the average worker, the general shortening of working hours and gradual increase in tourism and leisure are no suspense. It is inevitable.
The national holiday just past, Jiuzhaigou, Sichuan, and other tourist attractions, unprecedented hot, overcrowded, with the fact that the above judgment is true. Once this situation arises, it will move forward more rapidly and objectively requires a large increase in new scenic spots. The numerous rivers that plunge across the mountains and mountains of southwest China not only carry huge freshwater and hydropower resources, but also have shaped numerous landscapes that are awaiting people's development. The shuttle between the sun and the moon is moving in time. Nowadays, many demands come. People not only need renewable clean energy, but also need unique and magnificent tourism and leisure landscapes and unpolluted fish-breeding lakes. Potential resources have encountered strong demand and the opportunity for large-scale comprehensive development of hydropower in Southwest China has come.
Some people use the slogan “Keep the Original Ecology†to oppose the construction of hydropower stations on the undeveloped sections of the Jinsha River and the Nu River. Urbanites suffering from the pollution of the air are most likely to accept this kind of agitation, but careful analysis is confusing. Just imagine that if rivers and rivers really have to maintain their original ecology, then the rivers that are close to densely populated economic zones are obviously less suitable for development. Since recent developments have been prioritized and the practice has proven to be effective, there is no need to maintain the original ecology. In fact, the original ecology is not everything. The girl's hair needs to be combed every day, and rivers must also be properly managed to completely eliminate the poor mountains and become more beautiful.
Comprehensive strategic development of hydropower
From the point of view of development purposes, today's comprehensive development of hydropower can not be limited to one aspect of water energy utilization, but should be given equal emphasis on multiple objectives. While paying close attention to water conservancy functions and ecological fisheries, we should improve the ecological environment, increase tourist attractions, and create a reservoir of good fortune. District residents, etc., are promoted to a strategic level to be considered. Specifically, for each basin where hydropower development is carried out, remarkable achievements should be seen in the seven aspects of power generation and flood control, farmland irrigation, development of fisheries, improvement of ecology, increase of scenic spots, convenience of traffic, and the benefit of mountain people. Otherwise, comprehensive development cannot be called.
From a geographical point of view, the strategic focus of the comprehensive development of hydropower clearly has shifted to the Southwest. The question now is to further speed up the pace of development and strive to build large-scale hydropower stations to be built on the rivers and rivers of the Southwest in a short period of time. This is not only due to the overall governance of rivers in China, but it has already shown strong demand in the above six areas. At the same time, the longer the delay, the higher the unreasonable foreign opposition may be. With the rapid development of the knife and the construction of the dam and the impoundment of water in place, the facts will prove to the people of the downstream countries that the rivers are still flowing and the floods have been eliminated since then.
For the development of rivers, the current strategic priorities are the Jinsha River, the Nu River and the Brahmaputra River. On the Jinsha River, although Xiangjiaba has been built and water storage is in progress, Xiluodu and Baihetan, both of which have the largest power generation capacity, are also under construction and the organic group is starting to generate electricity. However, the leading hydropower station with the largest capacity and many years of adjustment functions - Tiger Leaping Gorge There is still controversy and no project has yet been established, so it must also be listed as a strategic priority. The development of the Nu River and Yarlung Tsangpo River has just been put on the agenda and it is a long way to go. The survey and design work for some large power stations has not yet been completed. It is undoubtedly a strategic focus.
On the concrete construction projects, the most important and critical strategic focus at the moment is the Tiger Leaping Gorge hydropower project on the Jinsha River. Whether this project can pass the examination and approval by the national environmental protection department and start the project as soon as possible not only relates to the scientific planning of hydropower development and water conservancy construction, and the effective use of renewable energy and fresh water resources, but also relates to the environmental protection concept and scientific basis of the national environmental protection authority. It even involves the social atmosphere, the quality of the national culture, the media guidance, and the level of high-level scientific decision-making. Therefore, it is necessary to use this project as a typical case of environmental protection to conduct public debates in the public.
There are people who do not agree with the construction of the Tiger Leaping Gorge hydropower project. The main reason is that they are afraid to destroy the two famous attractions of Tiger Leaping Gorge and Shek Kwu Changjiang First Bay. In fact, the dam site is selected upstream of the Tiger Leaping Gorge Scenic Spot. After the power generation is completed, the water flow is stable. The Tiger Leaping Gorge attraction will not be damaged, but it will exhibit the best viewing status all year round. It will not only be oblivious to water loss, but will not be lost. It was not flooded by floods. The first bay of the Yangtze River is indeed to be submerged, but it is reported that it is the first lake of the Yangtze River, surrounded by mountains, thousands of islands, four sides of canyons, and hundreds of streams. The world's most magnificent and attractive mountain and lake landscape will be clearly worthwhile. In order to make countless water gorges around the lake longer and more beautiful, and at the same time consider the good adjustment effect of the large storage capacity on the “Suizhong Water Diversion†and the downstream stepped power stations, the writer as an amateur is pursuing a high dam that leans toward the elevation of 2012 meters above sea level. Program.
Once the environmental protection arguments of the Tiger Leaping Gorge Project have been broken, the impact will be many. First of all, this proves that as long as the dam site is carefully selected, the impact of hydropower development on the environment is entirely possible to outweigh the disadvantages. In general, maintaining the original ecology is unscientific. Secondly, this reflects the fact that building dams and lakes in deep mountain gorges creates large water surfaces and is likely to produce comprehensive benefits. As a result, the more remote Nujiang and Brahmaputra rivers in the Southwest can also develop hydropower. Thirdly, in this connection, the three-times installed capacity of the Three Gorges and the world’s largest meteorological hydropower station in Tibet is also expected to accelerate feasibility studies and is expected to be developed soon. Fourthly, this will form a hydroelectric ladder connecting the reservoir areas in the Hengduan Mountains in the southwest, which will greatly facilitate traffic and rapidly increase the number of new scenic spots. Therefore, tourism in the southwest will also flourish. Fifth, the southwest region will obtain an ideal plateau ecological fish culture environment in calm rivers and a wide reservoir area. Many local residents will thus be lifted from poverty, and the people of the country will also benefit from it. In this sense, the Tiger Leaping Gorge Project is not only the leading power station in the Jinsha River Basin, but also the leader of all water systems in the southwest of China.
Socket-Weld Flanges has a female socket in which pipe is fitted. Fillet welding is done from outside on the pipe. The socket welding flange is similar to a slip-on flange except it has a bore and a counterbore dimension.
The counterbore is slightly larger than the O.D. of the matching pipe, allowing the pipe to be inserted into the flange similar to a slip-on flange.
The diamter of the smaller bore is the same as the I.D. of the matchine pipe A restriction is built into the bottom of the bore which sets as a shoulder for the pipe to rest on.
Weld Flanges,Socket Weld Flanges,ANSI Socket Weld Flanges,Steel Socket Weld Flanges
Shandong Zhongnuo Heavy Industry Co.,Ltd. , https://www.znforged.com