Introduction of jet pump
2018-03-10
Product profile:
Rotating jet pump (referred to as the jet pump, also called pitot tube pump) is a kind of new structure and working principle of small flow are unique single-stage high-pressure pump, the speed ratio is generally less than 30, even below 10, which belongs to a very low specific speed pump. In 1940s, Germany and Britain began to study the jet pump, and in 1970s the United States realized the industrial production of this kind of pump. The production and use of rotary jet pump in foreign countries have been more mature.
In 1980s, 2 rotary jet pumps were imported from the United States for the raw oil transportation of the carbon black production line, which is superior to the original centrifugal pumps, gear pumps, screw pumps and multi-stage centrifugal pumps in terms of smooth operation and service life.
The history of jet pump and its development at home and abroad:
The history of jet pump and its development at home and abroad:
The structure principle of jet pump is put forward by F.W.Krogh in 1923, he put the pitot tube principle applied in pump design, it is known as pitot pump. The first pump developed by the principle of skin trusteeship is open and has many defects. Until 1920s, it was developed a closed pitot pump. After the Second World War, Germany and the UK began to develop a jet pump for the development of rockets and missiles. With the end of World War II, the research of the jet pump has fallen into a low valley. Until 1960s, the closed wheels and seals were invented. These two components form a radial rotary impeller, which makes the jet pump develop and finally form the current model based on the theory of pitot tube. At this time, many industries need a high pressure pump that can adjust flow freely and work in full range on the head curve. Such as: cleaning the system in the food industry needs this high pressure pump, and the rotary jet pump can meet the requirements. This kind of cleaning system can be seen everywhere in the food industry, such as meat packaging, brewing, fruit, canned vegetables and beverage processing. In addition, it is necessary for the paper industry, petrochemical and refinery, and the power plant to have pumps with this characteristic. Against this background, in 1960s, a patent for rotary jet pump appeared in the United States. By 70s, Kobe produced the first commercial rotary jet pump. Since then, the rotary jet pump has begun to enter the market and is gradually accepted by people. Since then, there was a high tide of patent on the jet pump in the world in seven and 80s. In foreign countries, the jet pump has a satisfactory performance.
The first jet pump in China was used in the rubber industry and introduced from the United States in 1980s. At present, this kind of pump is rarely used in China, the main reason is that the manufacturers and users have little understanding of the characteristics and structural principles of the pump.
Application prospects:At present, our company is one of the few enterprises in China that can independently develop and produce rotary jet pumps. It is also one of the few enterprises that can produce rotary jet pumps internationally. The products own independent intellectual property rights. According to the characteristics of the domestic market, the company developed SX-1Z, SX-2, SX-2Z, SX-3 and SX-4 products. The products have obvious energy saving advantages over other pumps of the same working condition, and the pump efficiency is generally above 50%, which is close to 60%, even catching up with the similar pump products abroad. The company is a powerful manufacturer of rotary jet pump, which can produce a series of rotary jet pump products according to the needs of the customers.
Application prospects:
Rotary jet pump, because of its outstanding advantages, can replace small flow, high lift centrifugal pump, multi-stage centrifugal pump, gear pump, plunger reciprocating pump and screw pump and so on, which is widely used in many industries. In China, the use is very small, but in the field of foreign industry and agriculture has been widely used, in China has a very broad market prospects.
Due to the demand for small flow and high lift pumps in chemical industry, boiler water supply, reverse osmosis and high pressure cleaning, many alternative products have emerged, such as multistage centrifugal pumps, high speed pumps, plunger pumps, vortex pumps, etc.
Rotary jet pump meets the requirements of high pressure head and no leakage. It has broad application prospects in petroleum, chemical industry, chemical fertilizer, metallurgy, mining, rubber (carbon black), paper making, electronics, printing and dyeing, food and other industries. For example: because the advantages of jet pump head curve with the full range of work, make it become the first choice of cleaning system of high pressure pump in the food industry; the jet pump mechanical seal in the pump pressure, the sealing is reliable, so it can be applied to petrochemical industry, light hydrocarbon processing and high-pressure chemical process in thermal power plant; in the jet pump as boiler feedwater pump and cooling pump, steam turbine with jet pump as the jet pump to control the fuel and Nox at the same time; in the paper industry, high pressure water generated by the jet pump to clean up the cover on the machine, to produce high quality paper.
Due to the unique working principle of the jet pump, the principle of centrifugal and stamping is adopted. So it is the simplest single - stage pump in the world so far. The pump is compact in size and high in pressure, and is obviously superior to other types of high pressure pumps in operation stability and service life. It is widely used in petroleum, chemical industry, fertilizer, metallurgy, mining, rubber (carbon black), paper making, electronics, printing and dyeing, food and other industries. It is an ideal substitute for high-speed centrifugal pumps, multi-stage centrifugal pumps, gear pumps, plunger reciprocating pumps and screw pumps. Jet pump has become the preferred equipment for washing system of infusion pump, carbon black production line feeding pump of automobile manufacturing industry drilling, and chemical plant has become a field of deep well waste disposal, food processing CIP high pressure cleaning system, cleaning system manufacturing industry workshop and paper industry standard high-pressure cleaning equipment.
