Patent Application No..9 Publication No.A Publication Date 008.8.27 Fifth, so I imagine so large pump, can be used to promote water vessels and ships: Statement: This article is China's valve net Zhuangao, any website, newspapers and reprinted need to indicate the source, offenders must study! Your Power, We Can! , https://www.aerobspower.com
First, the "pump is the heart of the industry," the total electricity consumption of electricity accounts for more than 20%, improve energy efficiency, great national economic significance! The present invention aims to: Multi-stage double arc gear mounted in a sealed pump housing, by high-speed rotation, the fluid through the internal series of step-by-step supercharged; also by the high gear type, reducing the number of teeth to 12 without root cut, increasing flow . Pump structure is extremely simple, with very high machining accuracy, do not have to use a large number of special tooling and fixtures, general machinery factory will also be made; installation of components into the pump with the hole for the installation of reference, up to high precision and easy assembly and disassembly. The new composite material is the key to improving pump performance. In other words: to create high pressure and high pressure, high flow and large flow pump, high efficiency and energy saving, the structure is extremely simple and easy to create, more suitable for liquid and gas two media to replace the piston pump, centrifugal pump, involute gear pump, And piston type gas compressors are the objects of the present invention.
Second, the most commonly used three major categories of existing pump Disadvantages: 1. Piston pump is a positive displacement pump, can be used for liquid two media. But reciprocating motion has a lot of inertia defects, only low speed, the structure is very complex and vulnerable, single-cylinder pressure, flow fluctuations. High-speed rotary pump to replace low-speed reciprocating pump is in line with the design direction of modern machines! 2. Centrifugal pump is a non-positive displacement pump, low efficiency. Such as the 12-stage boiler pump efficiency of only 33%. According to Euler's principle of work, the pump power increases rapidly with the function of the third power. If the speed increase three times, the power increase of 27! Any centrifuges follow this rule, as do helicopter propellers. However, without increasing the speed of the centrifugal pump, it can not increase the flow and pressure of the pump. Therefore, it is necessary to allocate high power, resulting in a large amount of energy being invisible waste. How many Centrifugal Pumps in China, because of the principle of the reason to follow, in a long time to waste a lot of energy! 3. Involute gear pump, volumetric pump is high efficiency, can be 8000 rev / min high-speed rotation, the structure is extremely simple. However, more limited oil, but also because of the serious root gear cutting defects, difficult to large flow. However, the total efficiency of 0.72 to 0.92, more than double the centrifugal pump, you can save energy!
Third, for the original new pump, is a calendar of 16 years of hard work! On August 16, 1993, in Beijing Chinese Academy of Sciences, Professor Hu Zengyan and his wife Professor Yin Yuli invited the Director of Equipment Development Center of China Petroleum Planning and Design Institute Zhang Xiaowen to jointly present their first demonstration of innovation pump and gave a high degree of Evaluation. Since then, from a single arc to double arc, and double arc vane pump, cascaded from multi-level cascade in series, how many times to improve trial! The initial success of the fifth test pump greatly motivated me to continue to study the confidence. In-kind photo. Why sixteen years? Because the original innovation easier said than done, especially to achieve: full compliance with "the rational design of modern machinery and structural craftsmanship" is difficult, it is difficult.
Four, example: Suppose you want to make high-pressure super-large flow pump, set to take double circular arc gear modulus m = 50 ?, the number of teeth z = 12, garden d = 600 ?, Tianguan Park D1 = 720? 520 ?, formed by the two meshing tooth space Gap space S = 1947? 2, this area is equivalent to 0.5 m diameter pipe area! When the tooth width of one stage is chosen as B1 = 301 ?, the second stage B2 = 300 ?, the interstage resistance pressurization is formed. The theoretical flow of pump per revolution q = 2Î m2zb = 56520mL / r = 56.5L / r, / Min rotation, the theoretical flow Q = 80 m 3 / min, is a large flow and high pressure pump! Can also be easily used high gear, and then increase the flow rate of 35%. Pump shape is not large, when using new composite materials, light weight. Of course, you can also increase the speed (the gear up to 9215 rev / min), increase the tooth thickness more ways to increase pump flow. So increase the flow is mainly used for gas compression. Of particular importance is that there is only a difference of 1 ?, and the difference of 194.7? Is only the difference between the two tooth thicknesses. However, the liquid is incompressible and will lead to a sharp increase in the pressure between the stages. This pressurization method is very suitable for gas pressurization, two tooth thicknesses can vary several times. Because of the overall shell, its appearance is suitable for setting cooling facilities. If the pump pressure is 100? /? 2, the pump theoretical power N = 10PQ / 60 * 75 = 10 * 100 * 80 * 1000/60 * 75 = 17800Hp (horsepower), which is the application of 20,000 horsepower, large power super large Pump! Can also find the pump shaft diameter D = 24 ?. I test the pump module m = 8, the number of teeth z = 12, tooth width B = 30 ?, greatly reduced the physical test, but the overall structure is exactly the same. You can also set the pump outlet diameter, outlet flow rate and so on. When used in a pump jet propulsion craft, it is possible to extrapolate the craft's speed to replace a conventional propeller.
5.1 "multi-stage double circular arc gear pump for water jet propulsion ship" Patent Application No..8, Publication No. A, published December 12, 2008.
5.2 pump water propulsion shallow water wing shallow diving aircraft carrier patent application No. preliminary examination has been published 5.3 can shallow diving utility vehicle patent application No. preliminary examination has been published 5.4 pump jet propulsion fixed-wing helicopter patent application No.
5.5 to simplify the two-way high density ball valve Patent Application No..X Publication No.A
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