ارتباط با ما
با ما تماس بگیرید
0086-21-58386256
0086-21-58386256
The fluid coupling also known as the hydraulic coupling is a hydrodynamic device that is used to transfer rotational power from one shaft to another by the use of transmission fluid comprised of three main elements: Driving impeller mounted on the input shaft. Driven impeller mounted on the output shaft. Cover, flanged to the output impeller ...
Centrifugal pump shaft: AISI 410 A276 stainless steel: Torsional bending load: Fatigue fracture: 1. Improper design; 3. common defects: ... Coal pulverizer mill shaft [102] Star-shaped: Vehicle drive shaft [81] Half-shaft of a formula SAE racing car [83] Spline-shaft of an under slung crane [104]
rotating shaft. The pump casing provides a pressure boundary for the pump and contains ... Centrifugal pumps can also be constructed in a manner that results in two distinct volutes, each receiving the liquid that is discharged from a …
305 - Pumps 306 - Piping Systems 307 - Basic Hydraulics 308 - Hydraulic Troubleshooting 309 - Basic Pneumatics 310 - Pneumatic Troubleshooting. Energy Conservation 376 - Energy Conservation Basics 379 - Mechanical Energy Conservation. Industrial Hazard Control 151 - Chemical Hazards: OSHA's Hazard Communication Standard. Machine …
In the first step, we want to loosen all of the bolts on the pump in the motor and align the pump to the suction and discharge piping. We're then ready to tighten the bolts on the suction and discharge and that will set the pump in position on the baseplate.
There are 3 common tools and methods used to align pumps. Here are the pros and cons of each: Straight Edge - This method requires placing a straight edge on the pump and motor coupling, then making a visual check to see if the components are aligned. Pros. Quick and easy to perform. Cons.
6. Perform the procedures used to remove and install centrifugal pumps. 10% 7. Describe the procedures used to inspect and maintain centrifugal pumps. 5% 8. Perform the …
Fig. 1 The appearance of an overload failure depends on whether the shaft material is brittle or ductile. W hether related to motors, pumps or any other types of industrial machinery, shaft failure analysis is frequently misunderstood, often being perceived as difficult and expensive. For most machine shafts, however, analysis should …
Abstract. The primary function of a centrifugal pump shaft is to transmit torque to the impeller. At the same time, the shaft and its support arrangements must maintain …
Precision Installation. After removing the spent packing and examining the stuffing box, technicians then cut the packing rings. Measure the shaft of the equipment, whether it is a pump, mixer or agitator. To ensure the correct ring size, installers must use a mandrel the same size as the equipment's shaft.
Acoem alignment systems allow the user to input thermal growth (offline to running) targets prior to performing a precision shaft alignment. Using targets allows the alignment to be …
Once the pump is fastened to the baseplate, you're ready to align the pump shaft with the motor shaft. We recommend using a laser alignment tool if you have one, …
Use a strong arm lift pump shaft to allow the rotating element (shaft/impeller) to center itself relative to stationary components, and allow installation of spacer blocks to retain centralization. ... Using laser alignment, align motor shaft to pump shaft. With alignment equipment installed, connect discharge piping while periodically …
In essence, a shaft alignment can be defined as positioning two rotating machines at the point of power transfer, in this case a pump and a …
9) Install the mechanical seal in the pump: a) Place gland with stationary seal face and gasket on the pump shaft. b) Slide rotary unit on shaft sleeve and set the back of the rotary unit on the second scribe line as determined in step 8. Set screw the rotary unit to the shaft sleeve (if seal is supplied with holding clips, remove at this time).
The centrifugal pump defines as a hydraulic machine that converts mechanical energy into hydraulic energy by means of a centrifugal force acting on the fluid. In this, the pump uses a centrifugal …
CENTRIFUGAL PUMP NOMENCLATURE, CHARACTERISTICS AND COMPONENTS. R. Rayner, in Pump Users Handbook (Fourth Edition), 1995 Wear Plates. Wear Plates are generally used for axial clearances such as shown in Fig. 5.25 for a Wastewater closed impeller and in Fig. 5.19 for a Pulp and Paper open impeller. In the latter case, as wear …
Pump and motor shaft alignment. Firstly, a pump works by transferring the rotation from a motor, through a coupling into the pump shaft, which then spins an impeller and allows the fluid to be moved. We want to ensure …
Alignment typically must be less than 0.001 inch from motor to pump couplings. On large pump/motor combinations greater than 2,500 horsepower, the process becomes compounded since access to the shaft can be limited due to pump stand design and cramped working space. Most rotors in this horsepower range are too large to freely …
If your pump shaft keeps breaking, it's time to call in an expert. Our team is on hand to help you choose, install and maintain a variety of equipment and answer questions about things you've previously tried gone wrong. Give us a call on 1-800-367-4180 (toll-free) today! Vissers Sales Corp. - A closer look at shaft failures and what to do ...
all have an impact on the suitability of a shaft stiffness value. For example a pump generating twice the head of another pump would require a stiffer shaft as would a pump operating at double the speed of another. API 610 11th edition therefore has defined a "size factor", otherwise known as K t and expressed by the equation: K t = (Q x H)/N
The primary function of a centrifugal pump shaft is to transmit torque to the impeller. At the same time, the shaft and its support arrangements must maintain alignment of the rotor within its running clearances and through the shaft seal. Keywords. Postweld Heat Treatment; Centrifugal Pump; Critical Speed; Mechanical Stiffness; Static Deflection
1.1 Risk assessment relating to the use of Wright Flow Technologies Revolution pumps and pump units in potentially explosive atmospheres. 7 2.0 Introduction. 8 2.1 General. 8 2.2 Wright Flow Technologies Distributors. 8 2.3 Receipts and Storage. 8 2.4 Cleaning. 8 2.5 Pump Model Designation. 8 2.5.1 Pump Model and Serial Number. 9 2.5.2 ATEX ...
See more on pumpsandsystems
WebFigure 1. Alignment tolerances in relation to operating speed. Tolerances Alignment tolerances specify how close the pump and driver shaft centerlines should …
A typical centrifugal pump is constructed of a rotary pump shaft with one or more impellers attached to it. A centrifugal pump moves a fluid by means of the transfer of rotational energy from one or more driven rotors, called impellers. Fluid enters the rapidly rotating impeller along its axis and is cast out by centrifugal force along its …
6. Centrifugal pump basics. In this tutorial we're going to be looking at the centrifugal type pump. The centrifugal pump is the most common type of pump used in industry, and it's used in pretty much every commercial and industrial buildings as well as houses, apartment blocks even ships and some aircraft will have some form of …
Basics of fluid pump sealing. A mechanical seal is simply a method of containing fluid within a vessel (typically pumps, mixers, etc.) where a rotating shaft passes through a stationary housing or occasionally, where the housing rotates around the shaft. When sealing a centrifugal pump, the challenge is to allow a rotating shaft to enter the ...
Alignment is essentially based on measuring accurately the position of motor and pump shafts at two points or more. Various devices are available for measuring alignment …
12/17/2011. Pumps and pump systems are unique, engineered products that require specialized knowledge in all phases of repair, rebuilding and balancing. When pumps fail, costs add up quickly for repairs, replacement parts and plant downtime. Costs for lost production alone can add $5,000 to $200,000 per hour to the total cost of a pump failure.
Q. What is a dynamic seal in centrifugal pumps? A. A dynamic seal is one that only operates when the pump shaft is rotating and has no seal effect when the shaft is stationary. It consists of an expeller …
The transmission of power from a motor to a pump is achieved by connecting the motor shaft to the pump shaft, either directly or through a coupling of some type. Misalignment can occur in three ways: Radial (offset or parallel) misalignment. The centrelines of the two shafts are parallel but offset. Axial (or end float) misalignment.
The centrifugal pump is less sensitive to impurities and the alignment of the motor and is always fixed by the piloted mounting flange and adapter. The other most-used pump type in lube oil systems is the screw pump, which is in the positive displacement pump family. Typically for lube oil systems, a three-screw pump is used.
The primary functions of a pump baseplate include: 1. Support the weight of the pump and driver. 2. Maintain shaft alignment between the pump and driver. to allow for successful performance of the flexible shaft. coupling. 3. Resist the forces of …
Shaft and coupling Alignment Installed coupling hubs shall have 0.05 mm or TIR or the equipment vendor's requirements, whichever are more restrictive. This limitation applies both to the coupling rim as well as to the coupling face. Preliminary shaft alignment Prior to grouting, a preliminary shaft alignment shall be made. Final alignment ...
