5. Priming the pump. – Rotodynamic pumps are not self-priming. Piston pumps and generally all positive displacement, yes. Before the workshop proof thereof is to prime the pumps, bone filled with water the pump through the pipe Cabado, thereby filling the suction pipe and pump body, which is the normal procedure pump priming. 6. The artichoke.
– Prevents the entry of dirt (branches, herbs, paper, etc..) That can clog the pump. 7. Foot valve. – Holds the bone fluid pump priming. 8. Valves on the drive. – Allows for controlling the flow of the pump. 9.
Valve in the drive. – Prevent the decline of the fluid when the pump stops. It is essential if discharge pipe is long or is under great pressure. Diffusion pumps: when the rotor is surrounded by a series of fixed Alava (crown guideline): 2nd point of view of suction: suction pumps simple: when he and I go on one side of the rotor in which there is great thrust. 3rd by the position of the shaft: horizontal pumps vertical pumps (for deep wells) 4th achieved by pressure: low pressure pumps (with a rotor without guideline) medium-pressure pumps (with a rotor, with guideline) high pressure pumps ( with several rotors and guidelines) to improve performance crown directrix of the pump or get one more high elevation, is placed a crown around the rotor directrix, which causes the liquid stream in, they avoid the collision with the rotor and Alava also prevents the formation of eddies, thus initiating the transformation of kinetic energy into potential energy of fluid pressure. specific speed speed classified lists the three main factors that characterize the operation of the pump, namely the flow, the lifting height and the number of turns. The specific speed is much higher, the greater the flow with respect to the height of the action: it follows that the high pressure pump has low specific speeds. The higher speed is achieved with specific propellers pumps Conclusions: i heavy wear was noted in the centrifugal pump inlet 100/200, it was found that the bomb had sucked a piece of television, also noticed heavy wear of the valves and excessive use of silicone. i Corrective Maintenance is being applied to the centrifugal pump is not adequate. Tips: You must use the proper packing and make the maintenance and repair using appropriate methods such as Total Productive Maintenance (TPM) or BSC.
Elements that are useful for people development is a challenge that assume researchers and inventors daily, some utensils such as toilets where the fundamental and central theme of this article are mirrors. Mirrors are a piece made of Crystal rock or glass, reflecting light or image projected on them, is considered a toilet pan by its reflective virtues. Mirrors begin their development in Egypt since the year 2500 BC, where the invention of the first type of mirror made with bronze gave rise to the evolution of this. The use of mirrors also began to apply to civilizations such as the Roman, Greek and Etruscan; where the first mirrors created by these civilizations showed a new way to manufacture them. They began to use silver instead of bronze, in order to improve the definition of the image. The use of metals such as silver, copper and bronze mirrors were made for very limited periods of time, since environmental factors obscure metals. Mirrors begin their use in the vanities from the middle ages, more specifically in the 16th century, where the invention of mirrors glass and rock crystal, allowed that the use of these with ease to be applied to elements such as tables and apparatus, specially designed for placing mirrors. Mirrors for late 17TH century and early 18th century began to be manufactured in various sizes and shapes, in order to convert it from an element of vanity to a decorative element of halls and Royal residences.
For the 19th century use of mirrors were one of the largest sources of decoration used at the time. The adaptation of mirrors to other items such as automobiles, bicycles, trains and some more specific such as telescopes, began to be used since the 20th century. Today mirrors are a fundamental part in some research as the space, since a major component of the giant telescopes are developed on the basis of the primitive mirror lenses and mirrors. It is proper to note that some researchers such prestigious as Galileo Galilei and Leonardo Da Vinci, during the course of his life they used mirrors to develop some of its investigations. At present human evolution has led to mirrors to levels never believed, since the appearance of various types provide a wide range of them, which are classified into three main categories; they are: concave mirrors: are designed in a way semi spherical, in order to provide a greater visual range of the object or person reflected image. Convex mirrors: this are equally developed that concave mirrors, with the difference that the reflective part makes outer concave design, with the purpose to increase the directly reflected image. Plane mirrors: are designed as its name indicates it flat so that the reflection that this gives, is equal to the element to reflect. In conclusion the invention of mirrors was a great help for the development of some very important elements currently, so this is good to highlight the history, utility and development of this element as used in the daily life of all people.