World pump technology development status and overall trend
- Dec 30, 2017 -

In recent years, the pump technology trends mainly include the following:


Product diversification

The vitality of the product is the market demand. Today's market demand is precisely the need to have their own characteristics, to be different; it is this point, creating a diversified pump product trends. Its diversity is mainly reflected in the diversity of pump delivery media, product structure differences and operational requirements of several different aspects.

From the diversity of transport media, the earliest pump is a single object of water and other flowable liquid, gas or slurry can now transport solid-liquid mixture, gas-liquid mixture, solid-liquid mixture until the delivery of live Objects such as potatoes, fish and more. Different conveying objects have different requirements for the internal structure of the pump.

In addition to the delivery of the pump on the structure of different requirements, in the pump installation, pipeline layout, maintenance and other aspects of the pump internal or external structure put forward new requirements. At the same time, all manufacturers, in the design of the structure has joined the idea of their own business, more to improve the diversification of the pump structure.

Based on the overall background of sustainable development and environmental protection, the pump operating environment put forward many requirements on the design of the pump, such as reducing leakage, reducing noise and vibration, increasing reliability, prolonging the service life, etc., all present different requirements on the pump design Focus or focus on a few key points should be considered in parallel, but also inevitably form a diversified pump.


Pump design and manufacturing technology to enhance the optimization of the organic combination

Into the information age today, pump designers have long been the use of computer technology for product development and design (such as the use of CAD), greatly improving the design of the speed and shorten the cycle of product design. Among the manufacturing-based manufacturing, manufacturing technology represented by numerical control technology CAM has been deeply involved in the production of the pump. However, judging from the current domestic situation, numerical control technology CAM is mainly used in the production of batch products. For a single or small batch of production, the current CAM technology has not yet been widely implemented in the pump industry, a single small batch of production is still based on traditional production equipment.

As the market demands manufacturers to shorten the delivery time as much as possible, especially for short supply cycles of special products (products that are required by users), it is inevitable for pump manufacturers to accelerate the use of CAM technology and even CIMS, Flexible manufacturing (FMC and FMS) from the design to the manufacture of molds, parts processing and other aspects of a coordinated approach to ensure that once the design is completed, the processing of parts of the product is also tends to be completed over the same period to ensure that shorten the production cycle of the product.

At the same time, in addition to the use of computer graphics, but also in the computer to achieve the carrier of this product strength analysis, reliability prediction and three-dimensional design, the original need to find and solve the production process and local structural problems and assembly Sexual issues mentioned before production to prevent, shorten the trial period of the product.


Product standardization and modularity

In the product diversification at the same time, as a general-purpose pump products, the overall total is still huge. In the market, in addition to the emergence of technical competition, the price competition of products, especially the price competition of generalized products, is an inevitable trend. Under the trend of product diversification, it is necessary to realize the competitive advantage of product price, the standardization of product components, and the modularization of product components. Modularity of many components, through the combination of different modules or change the characteristics of individual parts, in order to achieve product diversification. At the same time, only when the degree of standardization of parts and components is increased, it is possible to actualize the production of parts and components based on the diversification of products to reduce the production cost of products and form the price competitive advantage of the products, On the basis of further shorten the product delivery cycle.


Pump internal characteristics of the promotion and the pursuit of external characteristics

The so-called intrinsic characteristics of the pump refers to the inherent characteristics of products, including product performance, parts quality, the whole assembly quality, appearance quality, or simply referred to as quality. At this point, it is the current concern of many pump manufacturers is also trying to improve, improve. In fact, we can find that there are many products that fail to meet the factory inspection after they are sent to the use unit for testing. If there are many problems such as overload, noise increase, unacceptable use or loss of life expectancy And other aspects of the problem; and pump in the actual operating point where they run or feature, we call the pump's external characteristics or system characteristics.

Technicians often spend a lot of time trying to improve the efficiency of a certain product during product design. If the pump operation deviates from the high efficiency point of the design, the actual operation efficiency is far more than reduced by 1%. Now, pump manufacturers at the same time supporting the user, including the frequency of the control equipment and complete sets of equipment, in fact, has been involved in the pursuit of the external characteristics of the pump. On this basis, pay attention to the pump centralized control system to improve the efficiency of the entire pump and pumping station, it is in the pursuit of pump characteristics to a higher level.

From a sales point of view, selling a product is the intrinsic characteristic of a sales pump. Concerning the characteristics of a pump, manufacturers are not only selling products, but selling pumping stations (complete sets of projects).

From the use point of view, a good product must be suitable for the operating environment of the product rather than the factory test to determine the product.


The further development of mechanical and electrical integration

Just like the development of science and technology, at the present stage, the interdisciplinary and interdisciplinary fields in the field of science and technology are getting more and more rich. Interdisciplinary joint research is a very common thing, as is the technological development of pump products. Shielded pump, for example, to remove the pump shaft seal, the structure must start from the motor, the single is limited to the pump itself is no way to solve; pump noise problems, in addition to solve the pump flow and vibration, at the same time need to be resolved Motor fan noise and electromagnetic noise; improve submersible pump reliability, you must add in the submersible motor such as leakage protection, overload protection and other measures; to improve the pump operating efficiency, the need to help control the use of technology and so on. These all show that to develop the level of pump technology, we must start from the supporting motor, control technology at the same time, comprehensive consideration, to maximize the overall level of mechanical and electrical integration.


Accelerate the use of new materials and new processes

Over the past decade or so, the use of new materials and processes has been a major factor driving 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, pump to solve the corrosion resistance, wear resistance, high temperature and other environment played a prominent role. At the same time the use of new technology, and better use of new materials to pump parts are still among the pump. Some foreign manufacturers, for example, have designed and launched a pump made entirely of engineering plastics. Than the general use of metal materials in the pump on the strength of no less favorable than in the anti-corrosion wear superior. As another example, the use of new surface coating technology and surface treatment technology, the same pump can solve the problem of corrosion and abrasion. The further development of new materials and the application of new technology in-depth, the pump will be more widely used in the field.