Dby electric diaphragm pump depth excavation market potential development

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dby electric diaphragm pump depth excavation potential market dby electric diaphragm pump flow characteristic refers to the relative flow and displacement (medium flow through the valve The valve relative opening degree) The relationship between the ideal flow characteristic mainly has the percentage (such as straight line, Logarithmic) , parabolic and quick opening four. Common ideal flow characteristic only percentage (such as straight line, Logarithmic) , quick opening three kinds. Parabolic flow characteristic between straight line and equal percentage, the percentage of properties such as generally available to replace, and quick opening feature is mainly used for two control and program control, therefore dby electric diaphragm pump characteristic is, in fact, the choice of straight lines and equal percentage flow characteristic of choice. Dby electric diaphragm pump flow characteristic of choice by theoretical calculation, but the method and equation are very complicated. By means of the criterion of experience, more concrete from the aspects to consider: 1, from adjusting the quality analysis of the adjustment system and select; 2, from the process piping is considered; 3, from the change of the load analysis. Dby electric diaphragm pump diameter size dby electric diaphragm pump diameter and determine the choice of main basis valve the flow capacity of the Cv. In various engineering instrument design and type selection, to Cv for the dby electric diaphragm pump is calculated, and provide dby electric diaphragm water pump design specifications. From the Cv dby electric diaphragm pump to valve diameter calculation method, general subject to the following steps: 1, the determination of calculation flow. The existing production capacity, equipment load and the condition of the medium, decided to calculate flow rate Qmax and Qmin. 2, the determination of pressure difference before and after the valve. According to the selected valve flow characteristic and system characteristics of the selected S ( Drag coefficient) And determine the differential calculation. 3, calculate the Cv. According to the regulation of media to choose the appropriate formula and chart, Cmax and Cmin is obtained. 4, choose Cv. According to the Cmax, standard series of the products in their choice selection & gt; Cmax and with its most close to the level of C. 5, the opening of the dby electric diaphragm pump checking. General requirements at the time of maximum calculation flow opening ≯ 90%, the smallest calculation flow when opening ≮ 10%. 6, dby electric diaphragm pump actual adjustable ratio calculation. Actual adjustable ≮ 10 general requirements. 7, the determination of the seat diameter and nominal diameter. Verify right after, according to the C. The pneumatic dby electric diaphragm pump has the characteristics above, so dby electric diaphragm pump in the world since birth is gradually invaded other pump market, and has a part of it. Such as: painting, ceramics in dby electric diaphragm pump has been occupies the absolute dominant position, and in some other industries, like environmental protection, wastewater treatment, construction, sewage, fine chemical is expanding its market share, and can not be replaced with other pump status. Dby electric diaphragm pump's advantage lies in: 1, by using air as the power, so flow with back pressure ( Export resistance) Changes in automatic adjustment, dby electric diaphragm pump suitable for high viscosity fluid. The centrifugal water pump is a working point of water as a benchmark to set a good, if slightly higher viscosity fluid, requires the supporting reducer or the frequency conversion governor, cost is greatly raised, the same is true. 2, in inflammable and explosive environment with pneumatic pump reliable and low cost, delivery, such as fuel, gunpowder, explosives because: first, after the ground could not produce sparks; Second, working in generating heat, the machine not overheating; Third, the fluid does not overheat because dby electric diaphragm pump for fluid agitation is minimal. 3, the site of the bad places, such as construction sites, industrial and mining waste water discharge and the composition is complicated, because of the impurity in the sewage pipe is easy to jam, so to high pumps forming load, motor heating vulnerability. Dby electric diaphragm pump can be through the particles and the flow rate is adjustable, blockage can automatically stop to flow. 4, other dby electric diaphragm pump small size is easy to move, do not need foundation, take up little tiny, installation simple and economic. Can be used as mobile conveying pump. 5, in damaging, corrosive materials processing, dby electric diaphragm pump can be completely separated by the material with the outside world. 6, or some trial that there was no impurity pollution materials. 7, can be used for chemical properties relatively volatile liquid, such as: photographic materials, such as flocculation liquid. This is because the dby electric diaphragm pump shear stress is low, the physical impact on the material. Dby electric diaphragm pump is a new type of pump, in recent years, due to the diaphragm material is made breakthrough progress, to application in petrochemical, ceramics, metallurgy and other industries, is characterized by without irrigation water diversion, self-priming ability. Diameter is medium and transmission machinery parts separately, so the media will never leak outward. The sea without shaft seal, and pump itself significantly longer service life. Dby electric diaphragm pump application fields: painting, ceramics in dby electric diaphragm pump has occupies the absolute dominant position; Environmental protection, wastewater treatment, construction, sewage, fine chemical is expanding its market share, and can not be replaced with other pump status. Dby electric diaphragm pump way of role only when choosing pneumatic actuators, the role of way through positive and negative effect and positive effect of the valve actuator portfolio formation. There are four that are positive (combination Gas closed type) , positive and negative, Gas type) And anyway, Gas type) And reflect ( Gas closed type) , through the combination of four dby electric diaphragm pump action have both on and off. For the choice of the ways of dby electric diaphragm pump function, mainly from three aspects: technology of production safety; The characteristics of medium; Ensure product quality and economic loss is minimal.

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