These embedded videos lead to a ton of high-quality YouTube views. When เพิ่มยอดวิว it comes to the YouTube algorithm, the number of views your video has is important. We can see DBA_VIEW which we exported as view has imported as table.

 

A vertical condensate pump is used to transport condensate (condensed steam or vapor) from heating or cooling systems, particularly in HVAC, power plants, and steam systems. These pumps are activated intermittently by a float or level switch, which triggers the pump to discharge the fluid when the tank reaches a certain level. A vertical condensate pump, such as the one in the below image, can be used in the construction of buildings with an HVAC system or in power generation plants. 5.1  The basin for the intake of centrifugal pump shall be designed and sized properly for smooth function of the pump.

 

Another popular option for pump selection software is Intelliquip. The Detailed Pump View widget displays flow and pressure data from the Integrated Pump driver. Both data points are charted in the line graph with selectable time span.

 

There are several types of vertical centrifugal pumps which are discussed below. With this chart we see the break horse power plotted at various intervals. As you can see, as the flow rate increases, so does the power requirement.

 

Thoughts On “centrifugal Pump: Diagram, Parts, Working, Advantages ”

 

In the intake, the rotation of the impeller pushes the water through the diffuser. Such a casing provides a gradual increase in the area of a flow, thus decreasing the velocity of water and correspondingly increasing the pressure. A hydraulic pump generates movement of the fluid but it can’t create pressure. These systems are mainly used when high power densities are required or when the demand for loads increases quickly. The hydraulic system is especially applicable to all types of moveable equipment (e.g., excavators) and industrial systems (e.g., presses). The working of this pump is similar to a rotary screw compressor, but the main difference is of the working fluid.

 

During the working, as the space enclosed by the casing, rotor, and vanes increases, a vacuum generates at the pump inlet. After this, the atmospheric pressure forces the hydraulic fluid into this generated vacuum. When the enclosed space decreases, the hydraulic fluid is pushed to drain through the outlet valve.

 

To avoid cavitation, the NPSHr should always be less than the Net Positive Suction Head available (NPSHa) provided by the sump. NPSHa represents the total suction head available at the Pump inlet and is calculated as the difference between the total suction head and the vapor pressure head. When the NPSHa is greater than NPSHr, the Pump is less likely to experience cavitation.

 

Speed is how fast the Pump needs to operate to meet the duty point. The duty point of the Pump, as determined by the intersection of the Total Dynamic Head and flow rate, should fall within one of the listed speed ranges. In the example below, the Pump speed for the determined duty point is between 450 rpm and 600 rpm at approximately 500 rpm (shown in orange). For example, consider an application with a Total Dynamic Head of 25’ and a flow rate of 1,000 gpm. Draw a horizontal line (shown in red dashes in the image below) across the graph at the known Total Dynamic Head, which is 25’. Then draw a vertical line (shown in yellow below) through the graph at the known flow rate, which is 1,000 gpm.

 

Enerpac P-2282 Operation Instruction Sheet

 

The errors are displayed to the output device and recorded in the log file, if there is one. No errors are displayed to the output device or recorded in the log file, if there is one. For log file, use a separate directory object that points to an operating system directory path.

 

Care should also be taken as motors can be listed as having a high RPM but in actual fact the rpm may be rated as less from the motor. North Ridge Pump curves are specified to the exact RPM of the motor rather than using a general figure. A pump efficiency curve shows the efficiency of a pump across the range of flows and pressures produced by a pump. On the left hand side of the curve the efficiency will range from 0 to a maximum of around 85% efficiency before decreasing after approximately mid performance curve. Ideally a pump should be operated as close as possible to its BEP for maximum component life, and minimal wear.

 

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This is because a positive displacement pump flow is proportional to rpm and does not decrease with pressure like a centrifugal pump. A PD pump curve usually has a separate axis detailing viscosity, where the pump will show a flow against viscosity as per the graph below. This article will discuss vertical centrifugal pumps, how they work, types, components, and uses. The design of a piping system can have an important effect on the successful operation of a centrifugal pump. Such items as pump design, suction piping design, suction and discharge pipe size and pipe supports must all be carefully considered.

 

You can use Oracle Data Pump to migrate all or any portion of an Oracle Database between different releases of the database software. If your Oracle Data Pump job generates errors related to Network File Storage (NFS), then consult the installation guide for your platform to determine the correct NFS mount settings. Understanding how Oracle Data Pump allocates and handles files helps you to use Export and Import to their fullest advantage. Oracle Data Pump can migrate all, or portions of, a database from a non-CDB into a PDB, between PDBs within the same or different CDBs, and from a PDB into a non-CDB. The following sections describe situations in which direct path cannot be used for loading and unloading.

 

EPod is a browser-based front end software application allowing the end user and market influencers to intelligently select their own pump application on the web. Looking back at our example design flow of 1,000 GPM we can see that this pump will require approximately 7 ft of NPSHr at that condition. A typical safety margin between Net Positive Suction Head Available (NPSHa) and required (NPSHr) is 5 ft. So in this case it would generally be recommended that this pump not be applied in applications where NPSHa at the design flow of 1,000 GPM is less than approximately 12 ft. Considering the design trim curve we see that at zero flow, also known as shutoff or dead-head, the pump will develop about 130 ft of head.

 

With the same TDH, a greater flow rate could cause significant pumping issues. Avoid “operating on the right side of the curve” in most circumstances. First, identify the axes on the graph depicting Total Dynamic Head and flow rate. The vertical axis (Y-axis) represents the Total Dynamic Head measured in feet or meters. The horizontal axis (X-axis) represents the flow rate of the fluid being pumped measured in gallons per minute, liters per second or cubic meters per hour.

 

In addition, we have created a series of articles that explore each of these types of pumps in greater depth. End-suction centrifugal pumps are particularly popular because they offer a compelling combination of comparatively low up-front cost, acceptable service life, good efficiencies, and design flexibility. NETWORK_LINK – Used in cases where database is exported via a database Link over the network.