Pumps in China is the most widely used general machinery products, according to incomplete statistics, China's annual output of pump products in 40 billion yuan more than 20% of the country's annual electricity generation to 25% to be consumed in the pump products, pump products nationwide More than 6,000 manufacturers. In the production of the chemical and oil sectors, raw materials, semi-finished products and finished products are mostly liquids, whereas the conversion of raw materials into semi-finished and finished products requires complicated processes that pump to deliver liquids and provide chemical reactions with pressure flow In addition, in many devices also use the pump to adjust the temperature. In agricultural production, pumps are the main irrigation and drainage machinery. A vast rural areas in our country, every year in rural areas require a large number of pumps, agricultural pumps in general account for more than half of total pump output. Pumps are also the most widely used equipment in the mining and metallurgical industries. Mine need to pump drainage, in the mineral processing, smelting and rolling process, the need to pump water. In the power sector, nuclear power plants need nuclear main pumps, secondary pumps, tertiary pumps, thermal power plants require a large number of boiler feed pumps, condensate pumps, circulating pumps and ash pumps. In the national defense building, the regulation of aircraft flaps, tail rudders and landing gear, the rotation of warships and tank turrets, the ups and downs of submarines, etc. require the use of pumps. And the pump has many special requirements, such as the transmission of high temperature, high pressure and radioactive liquid, some also require the pump without any leakage. In the shipbuilding industry, the number of pumps used on each ocean going wheel is generally more than 100 and its type is also varied. Others, such as urban water supply and drainage, steam locomotive water, lubrication and cooling in machine tools, transporting drifts and dyes in the textile industry, transporting pulp in the paper industry, and transporting milk and sugar foods in the food industry, require large quantities Pump. In any case, pumps, pumps, running pumps, tanks, submarines, or drilling, mining, trains, ships, or everyday life are needed everywhere. Pumps are indispensable machinery and equipment in China's economic construction. They are widely used in the national economy sector and have a very significant role. The development of pump products is much faster than the growth rate of the national economy, and the prospect of the pump industry is very promising. After many years of hard work and struggle, the pump industry has made remarkable achievements and made outstanding contributions to the development of the national economy. Both the number of enterprises and the output value of products have been growing rapidly, but at the same time there are still some shortcomings And the characteristics of the times, specifically the following aspects. 1. The situation of state-owned enterprises is grim and the future is bleak 2. The rise of private-owned enterprises plays an increasingly important role 3. The market competition is fierce due to changes in the form of market procurement 4. The research on basic research is relatively small and the technical level of products lags behind 5. Due to the traditional management thinking and the low quality of business operators, the enterprise management level is lagging behind 6. Enterprise development speed and scale are exacerbated, and technical personnel are in short supply. With the rapid economic development in our country, the market competition is extremely fierce. The technical level of the pump products To improve the visibility and competitiveness of enterprises has a very important role. Enterprises should take this issue very seriously. Enterprises should take various measures to solve this problem, such as: the introduction of foreign advanced technology, scientific research, joint ventures and cooperation with foreign enterprises. Through continuous efforts to improve the technical level of products and quality. We must grasp the technical development trend of the pump industry and catch up. The following is the pump technology industry trends this year 1. The flow of media in the interior of the theoretical research and product design methods need to break through the research carried out (1) the flow of external flow control of the state and how the internal flow field calculated accurately Discrimination. (2) Accurate calculation of axial force and radial force of working point and calculation of axial force and radial force after changing working conditions. (3) multi-stage pump balance drum, balance plate accurate design. (4) accurate calculation of pump structure. (5) Optimum design of the hydraulic part of the pump product. (6) to establish a large number of efficient and reliable mixed flow pump, axial flow pump hydraulic model. (7) The exact application and popularization of ternary theory and binary theory design in pump product design. 2. Computer-aided design of pump products CAD, auxiliary test CAT, CAM-assisted manufacturing technology In the global context of the unusually rapid pace of development, all walks of life are widely applied computer technology, but the application of the pump industry is not good, the computer The application mainly in the role of drawing and calculators, although some research carried out, but not very good, not widely used. Research direction: (l) the development of ideal and practical design software. (2) Using computer technology and fluid theory to accurately calculate the internal flow field. (3) The hydraulic part of the pump product model should be made using computer technology. 3. Mechanical and electrical products integrated pump technology research With the rapid development of the national economy, all walks of life are gradually standardized, the use of units of the pump product requirements are getting higher and higher, more and more integration of mechanical and electrical instrumentation requirements, Many enterprises due to the technical level is not high, a moment also failed to meet the requirements of users. Main content: Automatic monitoring, automatic adjustment of working conditions, frequency conversion technology, fault diagnosis analysis. 4. Special pump product design In the field of pump products, pump products have some special requirements, for various reasons, pump products do not meet this requirement, only with some similar products to be replaced. However, due to not fully meet the requirements, the use of results is not satisfactory. In the future, we should conduct extensive research in this area. Several recent research products should be: (l) Design and manufacture of gas mixing pump. (2) Design and manufacture of critical and supercritical boiler feed pumps. (3) the design and research of turbine machinery. (4) flue gas desulfurization pump design and research. 5. Pump product reliability research With the rapid development of all walks of life, the pump unit of the pump reliability requirements are getting higher and higher, from a historical point of view of the pump industry less research in this area, mainly in Shenyang Pump Institute carried out some work, prepared two standards: JB / T6881-1993 "pump reliability test", JB / T68s2 a 1993 "pump reliability test", according to the actual application needs should be carried out in this regard Research. 6. Energy-saving pump products Pump energy-saving work carried out for a long time, but the recent results are not satisfactory, with the use of market standards and our country joined wTO, this issue has become important again. The traditional viewpoint of energy saving mainly considers the efficiency index. In fact, this is incorrect and incomplete. The reliability of the product, the type selection, the material of the overcurrent component, the sealing problem, the service life, and the adjustment of the working point Energy saving has an important impact. Should consider all-round energy-saving issues.
S-type load cells, also referred to as S-beam load cells, are force sensors specially designed to accurately measure both tension and compression. The name "S-type" is derived from their distinctive S-shape. Some users prefer to call them "Z-type," referring to their structured centre beam spring element.
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Zhejiang Nanhua Electronic Technology Co., Ltd , https://www.nhloadcells.com