China's circulating water vacuum pump manufacturers are mostly small and medium-sized enterprises, and their ability to innovate and improve is limited. Therefore, the high-end circulating water vacuum pumps are still mainly imported, and the high-end market profits have attracted many well-known foreign companies to enter the Chinese market, with domestic circulating water. Vacuum pump production companies compete, intangibly exacerbating competition in chemical and scientific research industries. In China, the circulating water vacuum pump manufacturing industry can supply applications in the chemical, pharmaceutical, and scientific research industries. With the rapid development of these application industries, China's circulating water vacuum pumps have also been thriving. In 2014, the circulating water vacuum pump manufacturing industry accounted for 62.9% of the industry's revenue, which indicates that the industry level is high. The diversity of laboratory instruments and equipment products allows a large number of small manufacturers to enter the industry, but due to lack of capital and technological innovation, many small companies can only produce low-quality products, so the industry is highly dependent on imports of high-end products. The profitability of this high-end market has attracted more foreign companies to start setting up branches in China.
In order to meet more user application requirements, China's circulating water vacuum pump products have developed to high-end, which has accelerated the development speed of the domestic laboratory instrument industry, coupled with the Chinese government’s support for instrument production and high-tech industries, in the coming years, China’s The overall level of the circulating water vacuum pump industry will increase substantially.
The flow characteristics of the ring water vacuum pump refer to the relationship between the relative flow rate of the medium flowing through the valve and the displacement (the relative opening of the valve). The ideal flow characteristics mainly include four types: straight line, equal percentage (logarithm), parabola, and quick opening. The commonly used ideal flow characteristics are only linear, equal percentage (logarithmic), and quick opening.
Specifically from the following aspects:
1 Analyze and select from the adjustment quality of the regulation system; 2 Consider the situation of process piping; 3 Analyze from the load change situation.
When the circulating water vacuum pump is working, the crank connecting rod mechanism drives the plunger to reciprocate under the driving of the motor. The movement of the plunger is transmitted to the diaphragm through the working liquid (usually oil) in the liquid cylinder, so that the diaphragm agitates back and forth.
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