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The development of energy saving and emission reduction of pump products needs technological innovat
专栏:Industry Information
发布日期:2019-01-02
阅读量:417
作者:佚名
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And in the manufacturing of the main production, the manufacturing technology represented by the numerical control technology CAM has gone deep into the production of the pump.

Today, in the environmental protection, electronics and other areas of high-tech development and sustainable development of the world based on the huge demand, for many industries or fields including the pump industry have brought rapid technological change and development. Pump products will be developed to the intelligent direction, can monitor the pressure, flow, temperature and vibration parameters; Able to evaluate the shaft, bearing and seal condition of the pump; Be able to diagnose the cause of failure.


Fu yuwu, President of the Chinese society of automotive engineers, said recently that electric drive will not replace internal combustion engine drive completely until 2050, during which time pumps and pumps will also face the challenges of lightweight and modular development.

To lead the internal combustion engine industry pump and pump industry trend, accurate grasp of the development trend of pump technology is the basic skills. The development of pump technology, like the development of other industries, is driven by market demand. Today, in the environmental protection, electronics and other areas of high-tech development and sustainable development of the world based on the huge demand, for many industries or fields including the pump industry have brought rapid technological change and development.

Energy conservation and emission reduction require technological innovation

With the continuous progress of technology, pump products will develop to the intelligent direction, can monitor the pressure, flow, temperature and vibration parameters; Able to evaluate the shaft, bearing and seal condition of the pump; Be able to diagnose the cause of failure. The technical development of magnetic pump and diaphragm pump industry will focus on the design of electronic regulating system, improvement of driving device and the search for new materials.

It is necessary to make the theory and design method scientific. Therefore, it is necessary to strengthen the basic theoretical research of pump, and pay attention to the interdisciplinary, interdisciplinary and emerging disciplines. The theoretical research focuses on the measurement, numerical simulation and performance prediction of the internal flow of the pump. Numerical calculation of unitary viscous flows; Theory and application of multiphase flow; Pump optimization design and design diversification.

Production and manufacturing of high-tech products is the fundamental guarantee of cheap and quality. Through the use of advanced computer-aided design and computer-aided manufacturing technology, not only ensure the product design quality, but also shorten the design cycle, greatly improve the product design ability, to achieve the optimization of the design scheme, to ensure the reliability of the product. At the same time, the application of computer manufacturing integrated system (CIMS) and virtual technology greatly shortens the production cycle of the pump products and ensures the performance of the products.

Modular pump technology is an important trend in the development of pump technology. In the modular pump series, only a few parts can constitute the whole pump series, which can reduce the production cost, shorten the delivery time, reduce spare parts and inventory, and personalized development requires that the products gradually tend to the direction of more varieties, small batch development.

In recent years, the development and application of various new materials is an important factor to promote the development of pump technology. Various new materials are used in the parts of the pump, the main benefits of which are to extend the service life and reliability of the pump in corrosive medium and extend the service range of the pump. At the same time, coating technology and material surface treatment technology in improving the flow characteristics and corrosion resistance of the pump has become increasingly important, with broad application prospects.

Traditional manufacturing combined with information technology

Entering the information age today, pump designers have long used computer technology to carry out product development and design (such as the use of CAD), greatly improve the speed of the design itself, shorten the product design cycle. And in the manufacturing of the main production, the manufacturing technology represented by the numerical control technology CAM has gone deep into the production of the pump. However, from the domestic situation, CNC CAM technology is mainly used in the production of bulk products. As for the production of single piece or small batch, CAM technology has not been generally implemented in the pump industry at present, and the production of single piece or small batch is still dominated by traditional production equipment.

Due to market demand manufacturer of the goods time shorten as far as possible, especially for special products (products) for user's request supply cycle is shorten, inevitable requirement of pump production enterprises to accelerate the use of CAM technology, and even computer integrated manufacturing system (CIMS), a flexible manufacturing (FMC and FMS) from design to mold manufacturing, parts processing, such as coordinated process of each link, ensure that once the design is complete, product parts processing, tend to be completed during this period, in order to ensure to shorten the production cycle.

At the same time, in addition to the use of computer mapping will also be on the computer the carrier to achieve the strength of the product reliability analysis, forecast and three-dimensional design, the original need to find and solve process problems in production, local structure and assembly problems prior to production to protect against, shorten the trial production period of the product.

Diversified in the product at the same time, pump as a general product, the total volume is still huge. In the market, in addition to the emergence of technical competition, product price competition, especially the price competition of general products is an inevitable trend. Under the trend of product diversification, it is necessary to realize the competitive advantage of product price, improve the standardization degree of product parts and realize the modularization of product parts. After realizing the modularization of many parts, through the combination of different modules or changing the characteristics of individual parts, product diversification can be realized. At the same time, only when the standardization of parts is improved, it is possible to carry out large-scale parts production on the basis of product diversification, so as to reduce the production cost of products and form the price competitive advantage of products, and further shorten the delivery cycle of products on the basis of product diversification.

The so-called internal characteristics of the pump refers to the inherent characteristics of the product, including product performance, parts quality, machine assembly quality, appearance quality, etc., or simply called quality. At this point, is the focus of many pump manufacturers, but also efforts to improve, improve the aspect. However, in fact, we can find that many products fail to achieve the factory delivery test results after they are sent to the user unit for operation after they meet the factory test requirements. Problems such as overload, increased noise, unsatisfactory use and reduced service life occur. And the pump in the actual running point or running characteristics, we call the external characteristics of the pump or system characteristics.

Technical personnel in product design, in order to improve the efficiency of one percent of a product often spend a lot of thought; And if the pump operation deviates from the design of the efficient point, the actual operating efficiency is far more than one percent. Now, pump manufacturers at the same time for users including frequency control equipment and complete sets of equipment, in fact, has been involved in the pursuit of external characteristics of the pump. On this basis, then focus on the centralized control system of the pump, improve the efficiency of the whole pump and pump station, is the pursuit of the external characteristics of the pump on a higher level.

From the point of view of sales, marketing products is to promote the inherent characteristics of the pump; The concern about the external characteristics of the pump is that the manufacturer is not only promoting the product, but also promoting the pump station (complete set of projects). From the point of view of use, a good product must be suitable for the operating environment of the product rather than the factory inspection and discrimination of the product.

Just like the development of science and technology, at the present stage in the field of science and technology, interdisciplinary, interdisciplinary research is becoming more and more rich, interdisciplinary common things, as well as the development of technology as a pump product is also so. Take the shielded pump as an example, to eliminate the shaft seal problem, we must start from the motor structure, only limited to the pump itself is no way to achieve, to solve the noise problem of the pump, in addition to solve the flow and vibration of the pump, but also need to solve the motor fan noise and electromagnetic noise; To improve the reliability of the submersible pump, measures such as leakage protection and overload protection must be added to the submersible motor; To improve the efficiency of pump operation, the use of control technology and so on. These all indicate that to develop the pump technology level, we must start from supporting motor, control technology and other aspects at the same time, comprehensive consideration, maximize the comprehensive level of mechanical and electrical integration.

Over the past decade, the use of new materials and new processes to promote the development of pump technology is a major factor. Pump materials from cast iron to special metal alloys, from rubber products, ceramics and other typical non-metallic materials to engineering plastics, in the solution of the pump corrosion resistance, wear resistance, high temperature and other environments have played a prominent role. At the same time, the use of new technology, and better use of new materials to pump parts and even the whole pump. For example, some foreign manufacturers have designed and launched all made of engineering plastic pump. Compared with the general metal materials produced in the strength of the pump is not inferior, in the corrosion resistance and wear better. For example, the use of new surface coating technology and surface treatment technology, the same pump can solve the problem of corrosion and wear resistance. With the further development of new materials and new technology, the application in the field of pump will be more extensive.


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