A vortex pump (also called a vortex pump) is a vane pump. It is mainly composed of impeller, pump body and pump cover. It is suitable for occasions requiring small flow (1 to 40 cubic meters per hour) and high lift (up to 250 meters).
A vortex pump is a vane pump. It is mainly composed of impeller, pump body and pump cover. The impeller is a disc with blades radially and evenly arranged around the circumference. An annular flow channel is formed between the pump body and the impeller, and both the suction port and the discharge port are at the outer circumference of the impeller. There is a partition between the suction port and the discharge port, thereby separating the suction port and the discharge port.
Vortex Pump,Vortex Water Pump,Vortex Centrifugal Pump,Vortex Circulation Pump Jiangsu Qiantu Trading Co., Ltd. , https://www.pumpqt.com
The automobile industry can be really a place of non-compliance. Recently, a high-ranking official of the Ministry of Science and Technology and a seat of "using the market for technology to deceive oneself" have caused a lot of controversy. It is believed that the misuse of technology for market misuse has led to a lack of independent innovation in China's autos and lack of independent brands. This is indeed a fact. However, it completely negates the market for technology and is also biased.
Facing such a strong contrast, Rao Bin, general manager of the China Automotive Corporation, proposed that instead of simply importing cars, it would be better to require foreign companies to export cars to us while also providing corresponding manufacturing technologies. This is the background of the time when China Motors Corporation submitted to the State Council the “Report on the Pilot Project of Implementing the Combination of Technology and Trade in the Automotive Industryâ€. The report puts forward that the volume of imported cars must be integrated with the combination of technology and trade, import and export, and take the road of introducing technology, cooperation design, and cooperative production. This report has become the starting point of the "technology market for the automotive industry."
At that time, foreign companies did not give us technology, but we actually had to “let†the market out because we lacked automotive products and the market was in short supply. In the words of Huang Fuheng, former general manager of China Automobile Sales Co., Ltd., “There are four skeletons that can sell money.†In society, three or two metal workers are hammering and hitting even if they are building cars. There were 23 "car factories" in Shazhou Commune of Jiangsu Province. The price of Santana at the time of trial production was only 24,000 yuan, but it quickly adjusted to 78, 000 yuan and 123,000 yuan to 178,000 yuan. Even so, the black market was able to fry over 200,000 yuan. It is imperative to satisfy market supply. It is the extreme supply in the market that has created the huge profits later in the auto industry.
When we introduced Santana, we thought that the production of a sedan was very simple and localization was not easy. It was not just a tiger painting! It was found out that supporting companies “no one company does not need to introduce, and no production line does not need to be transformedâ€, and the state has invested 5 billion yuan! A Santana's "cat tiger" was actually spent eight full years. The old Shanghai brand that was originally produced was an imitation of a foreign model. It took 30 years until it stopped production and did not reach the original car level. The most active promoter of car production in China, the auto expert and FAW’s old factory manager, Chao Zhaojie, retired and sighed: “After JV was jointly established with Volkswagen, we really learned to build a car.†When the Chinese car industry started, it did not introduce joint ventures, and it was not really possible without the market for technology.
The problem is that the introduction is only a means of learning to build cars, but some people regard it as a long-term model of business operations. Especially after 1985, the auto industry implemented a “catalogue†management. Regardless of how the market was in short supply, the relevant departments were firmly holding on to the entry threshold. Only a few companies were allowed to build cars. Others slightly moved and waved the “scattered†stick. beat. The joint venture company has approved one after another, the more it has been built, the more independent it is, whether it is state-owned or privately owned, it is difficult to be born, and this has become the current situation of this kind of “car universal national clubâ€. It is clear that Chinese cars are controlled by foreign companies and they are also known as "integrating the global economy"!
With strict domestic access and high external tariff protection, there is basically no competition in the market. In fact, it is the interests of multinational corporations that are protected. Foreign companies can easily pick up any car. CKD can make a lot of money by assembling thousands of vehicles. The joint-venture way to make money is so relaxed and happy, naturally it does not want to engage in any independent development. They not only do not own brands, but also proudly say: "The car that can create other brands is also a kind of brilliant!"
It is infuriating that those companies that are entitled to joint ventures with multinational corporations have tasted the sweetness of the joint venture and are eager to eat it from generation to generation. If the 20-year contract has not yet expired, they will no longer be able to wait. For another 30 years. In order to maintain their superior survival methods for a long period of time, they have also created a set of non-individual blasphemy theories. FAW's "20-year loneliness theory" is the most prominent representative. After the central leadership repeatedly promoted independent innovation, they also sang out of rebellion and grasped the country’s most important resources, enjoying the country’s most favorable policy treatment. If they were allowed to do whatever they wanted, they would certainly ruin China’s autonomy.
In order to find out the legal excuse for not using their own brands, they deliberately talk about independent development more difficult than developing "Shenzhen VI". What "Shenzhou VI" is not mass production, there is no economic cost, and the car is made up of many parts and components, batch manufacturing, pieces must meet standards, but also try to save money, so that consumers can afford it. If only from the manufacturing process considerations, it is indeed such a reason, but from the perspective of R&D, satellites and spacecrafts are not only technologically sophisticated, but they are all in strict secrecy, and they cannot be used for reference. The car has a history of more than 100 years. The so-called technologies are all mature "universal" technologies. Many of them are still transferred by the aerospace industry. When developing, they are not engaged in batch production. How could it be more than the development of satellites and spacecraft? Difficult? Isn't it clear that autonomy can't be done or not?
Not long ago, a sick old veteran of FAW agreed to call and wanted to talk to me about some of the little-known historical materials of FAW. As history has been retained, I am happy to go. But after he went, he told me that he wanted to discuss about two young comrades who were engaged in research. However, people told him that “above†had notice that they dared not come to participate. The veteran comrade himself dared not talk about it. Because he still had problems with seeing a doctor and pension, I could only return without success. The reason for this is because several previously published articles questioned FAW's inactive self-development.
On the 22nd of last month, the author's "By Chery, see the "Big Three", autonomy can not be or not? "(Can be found in the signature pages of the major websites themselves), and again raised some doubts about FAW Group. Less than two hours after the publication, some people put pressure on the major websites and requested that the manuscript be withdrawn. From this, we can feel how hard it is to tell the truth in the Chinese press.