Roots blower was invented by George Kings, an Englishman, in 1849. Later, it was improved and promoted by the American Roots brothers, and gradually became widely known and applied. Because the Roots brothers applied for the trademark "Roots", European and American countries also called it "Rootblower", which was translated into "Roots blower" when it was introduced into China, It is a positive displacement constant flow gas conveying equipment. At the same speed, the greater the pressure difference caused by the system resistance, the greater the flow will cause the internal leakage, and the micro loss will be proportional. Therefore, when selecting the high-pressure fan, choose Roots fan with a slightly higher theoretical flow to make up for this defect; In addition, it has a pressure holding characteristic, that is, its pressure comes from the reaction force of the system itself, which has a mandatory characteristic, so this characteristic is called "hard wind". However, Roots blower has another disadvantage, that is, the noise is high, especially with the increase of pressure. With the continuous improvement of the national environmental protection department's requirements for noise, It is also an inevitable problem to be solved for the development of Roots blower.
At present, the best way to control noise is to add sound insulation cover to the fan; However, because of its forced wind characteristics, when there is no suitable product to replace it, even if this problem is not well solved, it cannot be eliminated in many places; Although the pressure of multistage centrifugal fan or high-speed fan can reach the same pressure as that of Roots fan, its characteristic is "soft wind" after all, that is, the wind pressure generated by centrifugal force is not mandatory, so when customers need high pressure and stable flow, Roots fan is the first choice.
The earliest production of Roots blower in China was in 1947, which was produced by "China Diesel Engine Co., Ltd.". Due to technical reasons at that time, it was impossible for a fan to be able to both wind and exhaust, so the only one that can be used for wind is called "Roots blower", and the only one that can be used for exhaust is called "Roots vacuum pump". In the 1980s, in order to implement the strategy of industry standardization and product generalization, the Ministry of Machinery organized the domestic manufacturers of Roots blowers at that time and established a joint design group, which newly formulated the specific structure and size of Roots blowers, called the new L series Roots blowers.
The development of Roots blower in China can be roughly divided into five stages:
The first stage: imitation, digestion and absorption to self design and manufacturing. In the 1950s, the fan industry in China was basically produced according to the drawings of Surin. In the 1960s, after mastering a certain level of technology, China was able to design and transform its own products while imitating Soviet products. However, the types of Roots fans manufactured at that time were relatively single, with fewer performance points, It is not conducive to user selection, but this stage has laid a solid foundation for the development of Roots blower in China.
The second stage is the national joint design stage. In order to improve the design and manufacturing quality of Roots blower, expand the performance range of Roots blower, and facilitate the selection and use of users, as well as the development and promotion of energy-saving fan products, all major manufacturers formed a joint design team, which formally started work in 1982. It took nearly ten years to design and realize L-type Roots blower, It has advantageously promoted the technical progress and development of Roots blower manufacturers.
The third stage is the stage of self-improvement and development of each manufacturer on the basis of joint design. Each manufacturer has improved the jointly designed L series Roots blower in combination with its own actual situation, so that the performance of Roots blower has been improved.
The fourth stage is the active stage of Roots blower. As more and more Roots blowers are applied in the industry, the market demand for Roots blowers is growing, which also stimulates the development of Roots blowers. There are many manufacturers of Roots blowers on the market, whose technical level and product performance are far beyond the level of the last century.
The fifth stage is the improvement stage of Roots blower. Among the numerous manufacturers of Roots blowers, Yuanyu Machinery Technology, with its solid foundation and strong production strength, ranks among the best in the design, manufacturing and sales of Roots blowers, and has become the leader in the Roots blower industry.
The Roots blower produced by the company has reasonable mechanism, large air volume, low noise, energy conservation and environmental protection, excellent performance and long service life. The service life is generally stable in 5-10 years, and one can support two. High quality motor, high temperature resistant and fireproof materials, excellent quality, strong power. There is a silencer inside, and a separate silencer room is provided. The sound of fan vibration is very small, almost silent, which effectively reduces the noise pollution without any impact on production.
I believe that after reading the above content, you should also have some understanding of the origin of Roots blower, and I hope it will be helpful to you.
Text label: Roots blower
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