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تحقیق آماده در قالب فایل پاورپوینتی در مورد کاویتاسیون در پمپ

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Dear friends, we have prepared for you a research about cavitation in the pump in PowerPoint format and beautiful slides, it is also editable and printable.

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لینک کوتاه : https://en.magicfile.ir/?p=2998
توضیحات کامل در مورد فایل

دانلود تحقیق آماده در قالب فایل پاورپوینتی در مورد کاویتاسیون در پمپ

Dear friends, we have prepared for you a research about cavitation in the pump in PowerPoint format and beautiful slides, it is also editable and printable.

مشخصات تحقیق آماده در مورد کاویتاسیون در پمپ به شرح زیر می باشد

  • عنوان تحقیق : کاویتاسیون در پمپ
  • فرمت فایل : PowerPoint (.ppt)
  • قابلیت ویرایش : دارد
  • چاپ : بدون مشکل در پرینت گرفتن
  • تعداد اسلاید : 35

اسکرین شات اسلاید های این تحقیق آماده در مورد کاویتاسیون در پمپ

تحقیق آماده در قالب فایل پاورپوینتی در مورد کاویتاسیون در پمپ 11

قسمتی از متن انتخاب شده از داخل فایل پاورپوینتی :

Cavitation is a physical phenomenon that occurs in pumps. This phenomenon actually causes a decrease in the quality and useful life of the pump. In this article, cavitation in pumps and its reduction methods will be discussed.

Cavitation in pumps means creating air bubbles in the liquid environment inside the pump. These bubbles cause noise and vibration in the pump and also reduce the capacity and pressure of the pump. If cavitation occurs in the pump, it can cause a decrease in the quality and useful life of the pump and thus cause high maintenance costs.

روش‌های کاهش کاویتاسیون در پمپ‌ها:

Use of acoustic diaphragms: These diaphragms remove air bubbles from the liquid environment of the pump by using sound waves. This method is known as one of the cheap and efficient methods to reduce cavitation in pumps.

A new technology called "separation stage in the pump": in this method, the pump is divided into several stages and in each stage, the liquid pressure increases and the air bubbles in the liquid environment are eliminated. This method is known as one of the more advanced methods to reduce cavitation in pumps.

Multi-stage pumps: In these pumps, liquid pressure increases in each stage and air bubbles are eliminated. This method is known as one of the common methods to reduce cavitation in pumps.

Use of special fluids and anti-cavitation: In this method, fluids with special characteristics and anti-cavitation are used for pumps. These fluids reduce the volume of air bubbles in the pumped liquid environment and reduce cavitation.

Cavitation is a phenomenon that, if it occurs, causes a disturbance in the operation of the water turbine and pump. In addition, if this phenomenon occurs in the car for a long time, it will lead to corrosion of the propeller and shell. The Ireq Institute in Canada has presented a new method that is carefully studied by studying the condition of the vibrations of the above phenomenon. The working principles and mechanism of this method are based on the processing of vibration signals of the turbine shaft, which are measured by vibration sensors installed on the bearings. By processing these signals, the location and intensity of the cavitation phenomenon can be accurately determined.

استفاده از این روش دارای مزایای زیر می باشد

Accurate diagnosis and location of the cavitation phenomenon, the operating condition under which the wear phenomenon occurs is precisely determined, it will be possible to apply preventive repairs, periodical inspection is not necessary, expensive repairs are not necessary, performance drops are reduced.

The process of using this method is as follows: installation of bearing vibration sensors, mechanical calibration of sensors, output signal processing, hydrodynamic analysis, evaluation of the extent of the cavitation area and lost mass. The applications of this method are in the following cases.

Turbines in the following cases: continuous monitoring of the turbine performance, performing initial tests on the model or prototype, checking the effect of the repairs performed on pumps, fluid passageways, etc.
Cavitation is a phenomenon that causes damage and creates pits at high speeds. Sometimes in a hydraulic system, due to the increase in speed, the regional pressure decreases, and this pressure may decrease to the extent that it is equal to the fluid pressure in those conditions, or during the overflow or vacuum basin due to the presence of unevenness or unevenness of the floor. The overflow of the flow lines is separated from its bed and due to this separation, the local pressure in the separation area is reduced and it may reach the fluid vapor pressure.
In this case, as a result of these two factors, the liquid that is flowing in that part of the liquid will immediately boil and the liquid will turn into vapor and bubbles of vapor will be created. After traveling a short distance, these bubbles reach an area with higher pressure and explode, producing noise and creating shock waves, hitting the boundary between the fluid and the structure, and after a short period of time on the solid boundary causing erosion and It corrodes. The re-transformation of the bubbles into liquid and the pressure caused by its explosion sometimes reaches 1000 megapascals.

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ارسال کننده نظر مهری - 2023/6/20 3:5:31 am
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ارسال کننده نظر محمود - 2023/4/4 9:24:30 am
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