Nowadays, with the development of high-tech in the fields of environmental protection, electronics and the world's sustainable development as the main demand, many industries or fields, including pump industry, have brought rapid changes and development of technology. Pump products will develop towards intelligent direction, which can monitor pressure, flow, temperature and vibration, evaluate the shaft, bearing and seal status of the pump, and diagnose the causes of the fault.


Fu Yu-wu, chairman of the Chinese Automobile Engineering Society, said recently that electric drive could not completely replace internal combustion engine drive until 2050. In the meantime, water pump and oil pump will also face the challenge of lightweight and modular development.

To lead the trend of water pump and oil pump industry in internal combustion engine industry, it is essential to grasp the development trend of pump technology accurately. The development of pump technology, just like the development of other industries, is driven by market demand. Nowadays, with the development of high-tech in the fields of environmental protection, electronics and the world's sustainable development as the main demand, many industries or fields, including pump industry, have brought rapid changes and development of technology.

Energy saving and emission reduction need technological innovation

With the continuous progress of technology, pump products will develop towards intelligent direction, which can monitor the pressure, flow, temperature and vibration parameters; can evaluate the shaft, bearing and seal conditions of the pump; can diagnose the causes of failure. The technical development of magnetic pump and diaphragm pump industry will focus on the design of electronic control system, improvement of driving device and search for new materials.

The scientification of theory and design method is very necessary. Therefore, it is necessary to strengthen the basic theoretical research of pumps, and pay attention to the mutual penetration of interdisciplinary, marginal and emerging disciplines. The theoretical research focuses on the measurement, numerical simulation and performance prediction of the flow in the pump, the numerical calculation of one-dimensional viscous flow, the theory and application of multiphase flow, and the optimization design and design diversification of the pump.

The high technology of production and manufacture is the fundamental guarantee for the product's price and quality. By using advanced computer aided design and computer aided manufacturing technology, not only the design quality of the product is guaranteed, but also the design cycle is shortened, the product design capability is greatly improved, the design scheme is optimized, and the reliability of the product is ensured. At the same time, the application of CIMS and virtual technology has greatly shortened the production cycle of pump products and guaranteed the performance of 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 production costs, shorten delivery time, reduce spare parts and inventory, and the development of personalization requires that the product gradually tend to multi-variety, small batch direction.
In recent years, the development and application of various new materials is an important factor in promoting the development of pump technology. The parts and components of the pump are made of various new materials. The main advantage is that the service life and reliability of the pump in corrosive medium are prolonged, and the use range of the pump is expanded. At the same time, coating technology and material surface treatment technology have become increasingly important in improving the flow characteristics and corrosion resistance of the pump, and have broad application prospects.

The combination of traditional manufacturing and information technology

In the information age today, pump designers have already used computer technology to develop and design products (such as the use of CAD), greatly improving the speed of design itself, shortening the cycle of product design. In the production-oriented manufacturing, CNC technology CAM as the representative of the manufacturing technology has gone deep into the production of pumps. However, from the domestic situation, CNC technology CAM is mainly used in the production of bulk products. For single piece or small batch production, CAM technology has not yet been widely implemented in the pump industry, single piece and small batch production is still dominated by traditional production equipment.

As the market requires manufacturers to shorten the delivery period as much as possible, especially for special products (products produced according to user requirements), it is necessary for pump manufacturers to accelerate the use of CAM technology or even computer integrated manufacturing system (CIMS), flexible manufacturing (FMC and FMS) for mold design to manufacturing. Parts processing and other aspects of the coordinated processing, to ensure that once the design is completed, the processing of product parts tend to be completed at the same time, to ensure that the production cycle of the product is shortened.

At the same time, besides computer drawing, the strength analysis, reliability prediction and three-dimensional design of the product will be realized on the carrier of computer. The problems of process, local structure and assembly that need to be found and solved in production will be prevented before production, and the trial of the product will be shortened. Period.

With the diversification of products, pump as a general product, the total volume is still huge. In the market, besides the technical competition, the price competition of products, 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 the modularization of many parts, through the combination of different modules or changing the characteristics of individual parts, to achieve product diversification. At the same time, only when the degree of standardization of spare parts is improved, it is possible to produce large-scale spare parts on the basis of product diversification, which can reduce the production cost and form the price competitive advantage of the products, and further shorten the delivery cycle of the products on the basis of product diversification.
The so-called inherent characteristics of the pump refers to the inherent characteristics of the product, including product performance, parts quality, machine assembly quality, appearance quality, etc., or referred to as quality. In this regard, many pump manufacturers are concerned about, but also strive to improve, improve the aspect. In fact, we can find that there are many products in the factory testing conform to the use of the unit operation, often can not reach the factory factory testing results, such as overload, noise increase, use can not meet the requirements, life reduction and other issues; and the pump in the actual operation point or operation characteristics We call it the external characteristics or system characteristics of pumps.

Technical personnel in product design, to improve the efficiency of a product often spent a lot of ideas; and if the pump operation deviates from the design of the high efficiency point, the actual operation of the efficiency is far more than one percent lower. Now, the pump manufacturer is also supporting the user with control equipment including frequency conversion and complete sets of equipment, in fact, has been involved in the pursuit of pump's external characteristics. On this basis, pay attention to the centralized pump control system, improve the efficiency of the whole pump and pump station operation, is in the pursuit of pump's external characteristics to a higher level.

From a sales point of view, selling a product is to promote the inherent characteristics of the pump; and attention to the pump's external characteristics is that the manufacturer is not only selling the product, but also promoting the pump station (a complete set of projects). From the use point of view, a good product must be suitable for the operating environment of the product rather than the product of factory testing and judgment.

Just like the development of science and technology, there are more and more interdisciplinary and marginal disciplines in the field of science and technology at this stage. Interdisciplinary joint research is very common, as well as the technical development of pump products. Taking the shielded pump as an example, the problem of canceling the shaft seal of the pump must begin with the motor structure, and it is impossible to realize the problem only confined to the pump itself. Some measures such as leakage protection and overload protection are added to the hydropower motor, and the operation efficiency of the pump is improved by means of the application of control technology, etc. All these indicate that in order to develop the technical level of pumps, we must start with the matching motor, control technology and other aspects at the same time, considering comprehensively, to maximize the comprehensive level of mechanical and electrical integration.

In the past decade or so, the application of new materials and processes has been a major factor in the development of pump technology. Pump materials from cast iron to special metal alloys, from rubber products, ceramics and other typical non-metallic materials to engineering plastics, in solving the pump corrosion resistance, wear resistance, high temperature and other environments have played an outstanding role. At the same time, the application of the new technology makes the new material better applied to the pump parts and even the whole pump. For example, some foreign manufacturers have designed and introduced all the pumps made of engineering plastics. The pump is better than the ordinary metal material, and it is superior in strength and corrosion resistance. For example, the use of new surface coating technology and surface treatment technology, the same can solve the pump anti-corrosion and anti-wear problems. With the further development of new materials and the further application of new technology, it will be more widely used in the field of pumps



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