WO2006079294A1 - Inclined valve with forced rotation (valforzo) - Google Patents

Inclined valve with forced rotation (valforzo) Download PDF

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Publication number
WO2006079294A1
WO2006079294A1 PCT/CR2005/000002 CR2005000002W WO2006079294A1 WO 2006079294 A1 WO2006079294 A1 WO 2006079294A1 CR 2005000002 W CR2005000002 W CR 2005000002W WO 2006079294 A1 WO2006079294 A1 WO 2006079294A1
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WIPO (PCT)
Prior art keywords
valve
allows
auxiliary
operator
opening
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PCT/CR2005/000002
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Spanish (es)
French (fr)
Inventor
Daniel Aguilar Arrieta
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Daniel Aguilar Arrieta
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Application filed by Daniel Aguilar Arrieta filed Critical Daniel Aguilar Arrieta
Priority to PCT/CR2005/000002 priority Critical patent/WO2006079294A1/en
Publication of WO2006079294A1 publication Critical patent/WO2006079294A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
    • F16K15/182—Check valves with actuating mechanism; Combined check valves and actuated valves with actuating mechanism
    • F16K15/1821—Check valves with actuating mechanism; Combined check valves and actuated valves with actuating mechanism for check valves with a hinged or pivoted closure member

Definitions

  • valves that stop the fluid or let it flow (closed or open) within safety limits depending on the operating pressure of the same.
  • Gate valves have the characteristic of opening and closing by means of a circular body that moves vertically and its section is normally cuffed to avoid friction. These valves are widely used both in industry and in the residential sector. Use a threaded rod to move the valve vertically.
  • the seat of these valves is not smooth, nor is it flat, it is a channel on the inner wall of the body, which contributes to considerable friction losses. In the case indicated here it provides the advantage of solving this problem and the extra size on the valve body since the paper does not have a bonnet and this valve does.
  • the other type is the spherical valve: in this case, it has a much larger volume than the gate valve and that any other valve but, its advantage is that the losses are reduced to almost zero and this makes it the valve perfect
  • the paper "VALFORZO” tends to resemble this valve as much as possible, except that friction losses are slightly larger but smaller than in the case of the gate valve.
  • the great advantage of "VALFORZO" is that it is smaller even than the gate.
  • R is the result between the normal and the frictional force (Kg) ⁇ is the angle between the normal and R in degrees ⁇ is the angle between the normal and the lower arm force of the valve system
  • W is the force of the minor arm that results from the moment of the force exerted on the surface of the valve and the moment of the pin (minor arm); taking the axis of the drum as a common center Fig. (4/6) (6) Dm is the average diameter of the rod thread that rotates the operator from the outside.
  • T is the torque that the operator must make on the lever of the key that can be 60 cm.
  • the speed thus obtained is 246.5 , / s.
  • the auxiliary valve releases a pressure:
  • 60 Kg can be maneuvered by an operator with ease and once this effort is made the other turns are very smooth.
  • VALFORZO has a peculiarity that is the seat similar to the transition of the neck of a bottle but obliquely. It follows that the angle of action of the valve is less than 90 °. The surface is smooth but undulating allowing a streamlined flow of low friction loss.
  • the double valve system Fig. (1/6) serves to avoid flow waves that cause water hammer in the pipe.
  • Check valves are oscillating valves and have the same movement as VALFORZO only that those are not manually controllable.
  • the seat of the same produces losses by friction since it is not smooth but it is sharp and sharp. If the seat of these valves were like VALFORZO in. sometime the valve would be locked and therefore the seat they have is necessary.
  • the general objective is one more option of the existing variety! in the market.
  • VALFORZO is to minimize friction losses, which depends on the shape of the internal walls and the seal on the edge of the valve. The smaller the aerodynamic protuberance, the lower the friction losses. This deformation is necessary to avoid rubbing with the inner body walls.
  • the other specific objective is cost and what depends on this is body size and internal elements.
  • the stress calculations are important since the sizes and materials of the parts depend on the diameter and the specific use of the pipe.
  • VALFORZO has the top part removable by screws and the union with the pipe by means of a flange. The latter may depend on the manufacturer since he can decide to manufacture weldable, threaded or leave it flanged. Advantages of VALFORZO.
  • Fig. (1/6) represents the scheme of the double valve system that produces the "HYDRAULIC PLUG" in special cases in which the water hammer is considered for reasons of caring for equipment such as turbines, flow meters and others.
  • Figure (1/6) represents the scheme of the double valve system that produces the "HYDRAULIC PLUG" in special cases in which the water hammer is considered for reasons of caring for equipment such as turbines, flow meters and others.
  • the part Fig. (1/6) (1) represents the joint or union with the pipe that is required in this case with flange for maintenance. The manufacturer may wish to change this joint.
  • Fig. (1/6) (2) is the upper part of the valve that functions as a cover for internal maintenance.
  • Fig. (1/6) (3) is the head where the operator's key that opens or closes the valve is adjusted.
  • This head is usually hexagonal or octagonal in shape but the manufacturer can change this concept.
  • the smooth rod allows a seal that the manufacturer will modify at will as an essential part to prevent dripping.
  • the pressure in the top cover is not the same as in the pipeline since the nests or shelters of the valves prevent the passage of fluid to this place. However, some small spaces will inevitably pass moisture. The quality of the brand, makes these seals keep that camera dry.
  • Fig. (1/6) (4) is the pin that resembles the shape of a rectangular bar that passes through the rotating drum producing the opening pressure of the valve since the opening is the critical moment of greatest force. Your material must be very strong like the spinning drum.
  • Fig. (1/6) (5) is the internally threaded nut so that the rod screw moves it vertically.
  • the two pins both left and right are they support through a channel where the cylinder that acts as the axis passes to the movement of the pin. They are two independent axes but they move at the same time.
  • Fig. (1/6) (6) is the surface of the lower wall that functions as a valve seat. This seat is smooth but curved to prevent the valve from continuing and locking. This wall forms a bulb to prevent the valve from rubbing on any surface. The only thing that prevents the valve from opening and letting the fluid through is its pressure.
  • Fig. (1/6) (7) is the valve or valves that have an angular movement centered on the axis of the rotating drum. It can be seen that the conventional valve is not flat, but that it is curved with the same curvature as the upper wall. This causes that the valve does not present obstacle to the passage of the fluid. It also follows that the lower seat is rounded with an aerodynamic protrusion. The two valves operate synchronously producing a turbulence of the fluid in the central region that softens the outlet avoiding in part an aggressive wave towards the next compartment. This effect is known here as the "HYDRAULIC PLUG".
  • Fig. (1/6) is the nest or shelter of the valve and operates as the mold of the valve sealing hermetically. It is to be imagined that when the system is fully opened, the passage is free and the fluid undergoes a very slight change in its trajectory due to the shape of the internal walls of the valve body.
  • Fig. (1/6) (9) is the B-B view of the nest explained above.
  • Fig. (1/6) (10) is the protuberance that shows with the opening of the valve in the bottom wall.
  • Fig. (1/6) (11) is the wall of the valve body on the outer side. On the upper leg, the protruding edge can be noticed to be fastened by screws to the top cover for maintenance.
  • Fig. (2/6) (1) is the rotating drum that has an opening in the center so that the pin that is the minor arm of the lever passes. The ends of the pin have attached shafts forming part of a single solid body and that is where they rest on the valve body. When turning this element, turn the valve allowing to open or close it. The hole through which the pin passes is made in such a way that it has a delay to first open the auxiliary valve that decompresses the part of the pipe that contains the fluid. This mechanism, which will be discussed later, allows the valve to be opened with much less effort than it could exist if there were not.
  • Fig. (2/6) (2) is the telescopic system for balancing efforts protecting the thread.
  • This mechanism consists of a hollow conduit through which a tension pin passes through a spring that has a force of 20% of the maximum to its test resistance. The work of this mechanism is to prevent the thread from concentrating excessive stresses on only one side of it and aligns the transmission nut a bit.
  • Fig. (2/6) (3) is the rotating drum seen from an A-A cut.
  • Fig. (2/6) (4) is the valve closing the passage to the fluid.
  • Fig. (2/6) (5) is the seal made of elastic material such as rubber or similar that allows an ideal seal that does not let the minimum of the fluid from the other side. This seal must be compressible to a certain limit of elasticity to avoid deteriorating it at the time of opening, which is the most critical situation.
  • Fig. (3/6) (1) is the seal already mentioned when it is housed in the nest of the upper part of the valve body from the C-C cut. This seal does not allow fluid to pass into the maintenance chamber of the top cover.
  • Fig. (3/6) (2) is the decompression orifice of the main valve; that is, the element that allows the fluid to be allowed to pass or not to the other side and therefore the main valve opens loosely.
  • Fig. (3/6) (3) is the worm screw of the rod seen from the CC cut, that is, the upper part seen from inside the valve body.
  • Fig. (3/6) (4) is the rotating drum that mechanically joins the transmission nut and the valve itself.
  • Fig. (4/6) (1) is the head of the worm that serves to turn the screw using a wrench that the operator manipulates. This rod has only turning movement and what moves vertically is the transmission nut.
  • Fig. (4/6) (2) is the cylinder or drum of the telescope system and rotates with the movement of the transmission nut or sleeve.
  • Fig. (4/6) (3) is the transmission nut or transmission sleeve that moves through the worm in a vertical direction.
  • Fig. (4/6) (4) is the main valve.
  • Fig. (4/6) (5) is the pin that flexes as the transmission nut goes up or down.
  • Fig. (4/6) (6) is the rotating drum that allows the main valve to move angularly.
  • Fig. (4/6) (7) is the flexible cable that transmits the movement of the pin towards the auxiliary valve mechanism.
  • Fig. (4/6) (8) is the auxiliary valve that is normally closed when the main valve is closed and opened at the time of opening.
  • Fig. (4/6) (9) is the seal installed on the edge of the main valve.
  • Fig. (4/6) (10) is the axis of the pin that rotates the rotating drum.
  • Fig. (4/6) (11) is the underside of the hollow of the rotating drum deformed on purpose to retard the rotation of the rotating drum. This surface is curved towards the exit in such a way that when the transmission nut falls, the pin also lowers but does not rotate the rotation drum to a limit in which the opening of the auxiliary valve is guaranteed.
  • Fig. (4/6) (12) is the cylindrical part of the rotating drum that is supported from the projecting ends fig. (4/6) (6).
  • Fig. (5/6) (1) represents the transmission nut or shirt.
  • the direction of the transmission jacket is not so important here, it is simply a stress analysis. This quantitatively represents the force that the operator has to exert on a 60 cm lever of a standard wrench.
  • Fig. (5/6) (2) is the surface of the thread with an angle of ⁇ ° that allows the operator to reduce his leverage force.
  • Fig. (5/6) (3) is the base of the worm or the plane where the operator's key operates.
  • auxiliary valve serves to depressurize the main valve and that it can be opened with a reasonable force from a common operator.
  • Fig. (6/6) (1) represents the thrust of the pin through the impeller cable of the auxiliary valve mechanism opening system.
  • Fig. (6/6) (2) is the impulse cable, which is a compressed spring that allows it to bend by a guide until it reaches the pantograph which, when closed, opens the auxiliary valve more quickly.
  • Fig. (6/6) (3) is the element that makes the pantograph close and at the same time move it in a direction that guarantees the complete opening of the auxiliary valve orifice.
  • Fig. (6/6) (4) is the simple pantograph with its wheels to facilitate the total opening of the auxiliary valve.
  • Fig. (6/6) (5) is the slot through which the axis of the pantograph slides.
  • Fig. (6/6) (6) is the total fluid outlet space once the auxiliary valve is opened.
  • Fig. (6/6) (7) is the orifice of the auxiliary valve.
  • Fig. (6/6) (8) are the springs that keep the auxiliary valve closed for as long as the main valve is kept closed.
  • the auxiliary valve mechanism is not an invariable device since there are many ways to open a valve like this. It is not a contribution of invention added to the main idea but it is essential to decompress the main valve.
  • VALFORZO for pressure pipes must be much more sophisticated and improved to guarantee its effectiveness and efficiency.
  • VALFORZO double valve is only used with liquids, the transport of gases to be compressible has no problems with water hammer and the use of a single valve is appropriate.
  • Hydraulic if you can regulate and control the flow of water in this case as much as the butterfly valve or the ball valve can do.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanically-Actuated Valves (AREA)

Abstract

The invention relates to an elliptical valve that is suspended from a rotary drum which is sealed to a smooth, inclined surface. The invention essentially takes the form of a small elliptical disc which is uniformly folded at the points along the shorter diagonal, such as to form a circular cap having the same radius as the tubing in which it is installed, thereby enabling same to be concealed without acting as an obstacle to the passage of the fluid. The surface of the seat is curved longitudinally such as to prevent contact with the internal surface of the valve, i.e. only the valve is seated and friction is minimal since there is no contact with the walls. The valve moves by means of a nut with the aid of a worm screw on the outside of the valve body and a hexagonal- or other-shaped head for adjustment using a wrench with a standard lever that is moved by an operator. Operation with liquids, such as water, requires the use of an auxiliary valve which can be used to reduce pressure when the latter is very high. The double valve enables the use of a hydraulic cap which in turn partially reduces the water hammer phenomenon. The purpose of the inventive valve is to replace the spherical valve which is large and heavy. In addition, the invention can be used to eliminate the cap that forms part of a gate valve. Moreover, the inventive valve reduces friction losses that can be caused by cracks in standard gate valves. The use of compressible fluids, such as air, dispenses with the need for an auxiliary valve. It is not recommended for operation with an intermediate opening as is possible with a globe valve. The valve is equipped with an upper cover which is used to maintain and replace any part. The invention can be used to obtain a reduction in costs, occupied space and friction losses compared to standard valves.

Description

DESCRIPCIÓN DE LA INVENCIÓN DESCRIPTION OF THE INVENTION
"VÁLVULA DE GIRO FORZADO OBLICUA" resumido (VALFORZO) El sector tecnológico a que se aplica este invento es La Mecánica de Fluidos. La Clasificación Internacional de Patentes: F16L 55/055, F24F y B67D."OBLIQUE FORCED TURN VALVE" summarized (VALFORZO) The technological sector to which this invention applies is Fluid Mechanics. The International Patent Classification: F16L 55/055, F24F and B67D.
ANTECEDENTESBACKGROUND
Se conoce varios tipos de válvulas que detienen el fluido o lo dejan fluir (cerrado o abierto) dentro de límites de seguridad dependiente a la presión de operación de las mismas.Several types of valves are known that stop the fluid or let it flow (closed or open) within safety limits depending on the operating pressure of the same.
Las válvulas de compuerta tienen la característica de abrir y cerrar mediante un cuerpo circular que se mueve verticalmente y su sección normalmente es de forma de cufia para evitar la fricción. Estas válvulas son muy utilizadas tanto en la industria como en el sector residencial. Utiliza un vastago roscado para mover la válvula en forma vertical. El asiento de estas válvulas no es liso, tampoco es plano, es un canal sobre la pared interna del cuerpo de las mismas lo que contribuye a pérdidas por rozamiento considerables. En el caso indicado acá proporciona la ventaja de resolver este problema y el tamaño extra sobre el cuerpo de la válvula ya que la ponencia no posee bonete y esta válvula sí lo posee. El otro tipo es la válvula esférica: en este caso, se tiene un volumen muchísimo mayor que la válvula de compuerta y que cualquier otra válvula pero, su ventaja radica en que las pérdidas se reducen casi a cero y en esto la convierte en la válvula perfecta. La ponencia "VALFORZO" tiende a parecerse lo más que se pueda a esta válvula solo que las pérdidas por fricción son un poco mayores pero menores que en el caso de la válvula de compuerta. La gran ventaja de "VALFORZO" es que es más pequeña incluso que la de compuerta.Gate valves have the characteristic of opening and closing by means of a circular body that moves vertically and its section is normally cuffed to avoid friction. These valves are widely used both in industry and in the residential sector. Use a threaded rod to move the valve vertically. The seat of these valves is not smooth, nor is it flat, it is a channel on the inner wall of the body, which contributes to considerable friction losses. In the case indicated here it provides the advantage of solving this problem and the extra size on the valve body since the paper does not have a bonnet and this valve does. The other type is the spherical valve: in this case, it has a much larger volume than the gate valve and that any other valve but, its advantage is that the losses are reduced to almost zero and this makes it the valve perfect The paper "VALFORZO" tends to resemble this valve as much as possible, except that friction losses are slightly larger but smaller than in the case of the gate valve. The great advantage of "VALFORZO" is that it is smaller even than the gate.
Las demás válvulas como la de globo, aguja, mariposa, de ángulo, etc. No juegan un papel preponderante en la comparación con la ponencia "VALFORZO". Es en otras palabras, una perogrullada hablar de estos modelos para comparar tamaño y eficiencia porque de hecho son muy distintos. DESARROLLO:Other valves such as globe, needle, butterfly, angle, etc. They do not play a leading role in the comparison with the paper "VALFORZO". It is in other words, a truism to talk about these models to compare size and efficiency because in fact they are very different. DEVELOPING:
Físicamente un invento puede probarse en forma indirecta mediante un proceso de estudio de ingeniería y es por eso que se requiere poner un ejemplo para comprobar si la idea va por la ruta correcta o se desvía de la lógica del objetivo general. Lo que aquí se propone es inventar un modelo de válvula que tenga la ventaja de ocupar el mínimo espacio y que permita el mínimo de pérdidas por fricción. Hay que valorar también los materiales con que se irá a construir el modelo funcional. La desventaja técnica del modelo propuesta es el cómo vencer una fuerza que se aplica en el lado de la palanca mayor y no en el brazo menor. Aquí las concentraciones de esfuerzos son muy importantes en especial la rosca de la tuerca de transmisión y esto tiene el alcance según se muestra en la figura (5/6) donde se tendrá que desarrollar las siguientes ecuaciones:Physically, an invention can be tested indirectly through an engineering study process and that is why it is necessary to give an example to see if the idea is going the right way or deviating from the logic of the general objective. What is proposed here is to invent a valve model that has the advantage of occupying the minimum space and allowing the minimum of friction losses. We must also assess the materials with which the functional model will be built. The technical disadvantage of the proposed model is how to overcome a force that is applied on the side of the major lever and not on the minor arm. Here the stress concentrations are very important especially the thread of the transmission nut and this has the scope as shown in figure (5/6) where the following equations will have to be developed:
Q = R sen(β + λ) (1)Q = R sin (β + λ) (1)
W = R cos(β + λ) (2) Q = W tg(β + λ) (3)W = R cos (β + λ) (2) Q = W tg (β + λ) (3)
T = Q Dm/2 - {W Dm tg(β + λ)}/2 (4)T = Q Dm / 2 - {W Dm tg (β + λ)} / 2 (4)
Donde: Q es la fuerza del operario (Kg)Where: Q is the operator's strength (Kg)
R es la resultante entre la normal y la fuerza de rozamiento (Kg) β es el ángulo entre la normal y R en grados λ es el ángulo entre la normal y la fuerza del brazo menor del sistema válvulaR is the result between the normal and the frictional force (Kg) β is the angle between the normal and R in degrees λ is the angle between the normal and the lower arm force of the valve system
"W" en grados"W" in degrees
W es la fuerza del brazo menor que resulta del momento de la fuerza que se ejerce en la superficie de la válvula y el momento del pasador (brazo menor); tomando como centro común el eje del tambor Fig. (4/6) (6) Dm es el diámetro medio de la rosca del vastago que hace girar el operario desde afuera.W is the force of the minor arm that results from the moment of the force exerted on the surface of the valve and the moment of the pin (minor arm); taking the axis of the drum as a common center Fig. (4/6) (6) Dm is the average diameter of the rod thread that rotates the operator from the outside.
T es el torque que debe hacer el operario sobre la palanca de la llave que puede ser de 60 cm.T is the torque that the operator must make on the lever of the key that can be 60 cm.
Por definición la fuerza de fricción es el producto de la normal por el factor de fricción. Ff = N f (5)By definition the friction force is the product of the normal friction factor. Ff = N f (5)
Donde, N es la normal y f es el factor de fricción. Pero N f = N tg(β) y por lo tanto, se concluye que tg(β) = fWhere, N is normal and f is the friction factor. But N f = N tg (β) and therefore, it is concluded that tg (β) = f
Al resolver la ecuación (4) trigonométricamente se tiene: T = (W Dm(tg (λ) + f))/{2(l - f tg(λ)} (6)When solving equation (4) trigonometrically you have: T = (W Dm (tg (λ) + f)) / {2 (l - f tg (λ)} (6)
Supóngase de que la válvula tiene dimensiones en un plano cilindrico de diagonal mayor 26 cm y diagonal menor 18 cm ; el área de esa superficie sería de 429 cm2 con una válvula de diámetro nominal de 200 mm (8"). La presión de operación de 250 psi = 17.5 Kg/cm2, el momento de la válvula sería desde el centroide de la válvula: Mv = 18 x 7507.5 = 135135 Kg-cmAssume that the valve has dimensions in a cylindrical plane with a diagonal greater than 26 cm and a diagonal smaller than 18 cm; the area of that surface would be 429 cm 2 with a valve of nominal diameter of 200 mm (8 "). The operating pressure of 250 psi = 17.5 Kg / cm 2 , the moment of the valve would be from the centroid of the valve : Mv = 18 x 7507.5 = 135135 Kg-cm
Sí f = 0.2, Dm = 5 cm , λ = 7o y brazo menor = 10 cm; se tiene: 135135 = 10 W implica que W = 13513.5 Kg y la fuerza de b alance W x 0.2 Wt = 16216.2 Kg y tg(7) = 0.12278; aplicando la ecuación (6) se tiene: T = 16216.2 x 5(tg(7) + 0.2)/(2(1-0.2 tg(7))) = 13415.3 Kg-cm. Si se tiene una palanca de llave de 60 cm de longitud, la fuerza quύ debería aplicar el operario seria de 223.6 Kg; demasiado para una persona.If f = 0.2, Dm = 5 cm, λ = 7 o and minor arm = 10 cm; you have: 135135 = 10 W implies that W = 13513.5 Kg and the balance force W x 0.2 Wt = 16216.2 Kg and tg (7) = 0.12278; applying equation (6) you have: T = 16216.2 x 5 (tg (7) + 0.2) / (2 (1-0.2 tg (7))) = 13415.3 Kg-cm. If you have a key lever of 60 cm in length, the force that should be applied by the operator would be 223.6 Kg; Too much for one person.
La solución a este problema es la válvula auxiliar o válvula de descompresión; ahora el problema a solucionar es el siguiente:The solution to this problem is the auxiliary valve or decompression valve; Now the problem to solve is the following:
Fuerza de fricción en la Válvula de Descompresión: Si el área del orificio de la válvula auxiliar fuese 7.1 cm2, la fuerza de rozamiento sobre una superficie lisa metal a metal (f=0.2) sin lubricación sería 7.1 x 17.5 Kg/cm2 x 0.2 = 25 Kg o sea; vence 50Friction force on the Decompression Valve: If the orifice area of the auxiliary valve was 7.1 cm 2 , the friction force on a smooth metal-to-metal surface (f = 0.2) without lubrication would be 7.1 x 17.5 Kg / cm 2 x 0.2 = 25 Kg that is; beat 50
Kg sumando el resorte véase fig. (4/6) (8); si la superficie fuese lubricada, esta fuerza sería menor. Si la presión de la tubería fuera 250 psi y se utiliza una válvula descompresora la presión de apertura se reduce a 144.5 psi. Esto se demuestra de la siguiente forma: ecuación de BernoulliKg adding the spring see fig. (4/6) (8); if the surface were lubricated, this force would be less. If the pipeline pressure is 250 psi and a decompressor valve is used, the opening pressure is reduced to 144.5 psi. This is demonstrated as follows: Bernoulli equation
(P2 - P1/(pg) = (Z2 - Z1) + fLV2/(D2g) + KV2/(2g) (7)(P 2 - P 1 / (pg) = (Z 2 - Z 1 ) + fLV 2 / (D2g) + KV 2 / (2g) (7)
Donde: P2 = 250 psi, P2 = 14.7 psi, pg = 32.2, Z2 - Zi = 175m = 574 pie, 2g = 64.4 Si se desprecia el segundo término del lado derecho de la ecuación se tiene: 7.3 = 574 + 0.0078V2 se obtiene V = 247 pie/s Si se toma en cuenta el término que se despreció se tiene la siguiente ecuación: V2 = 477.2/(f 0.005176 + 0.00776) (8) Número de Reynold = NR = VD/ v = V9840; v = 10 -5Where: P 2 = 250 psi, P 2 = 14.7 psi, pg = 32.2, Z 2 - Zi = 175m = 574 ft, 2g = 64.4 If the second term on the right side of the equation is neglected it has: 7.3 = 574 + 0.0078V 2 V = 247 ft / s is obtained If the term that was neglected is taken into account, the following equation is taken: V 2 = 477.2 / (f 0.005176 + 0.00776) (8) Reynold number = N R = VD / v = V9840; v = 10 -5
ε/D = 0.0003; D = 3 cm = 0.09841 ε / D = 0.0003; D = 3 cm = 0.0984 1
Figure imgf000006_0001
Figure imgf000006_0001
La velocidad así obtenida es 246.5, /s. La válvula auxiliar libera una presión:The speed thus obtained is 246.5 , / s. The auxiliary valve releases a pressure:
0.5(246.5)2/64.4 = 472; para convertirlo a p si: 472 x 32.2/144 = 105.5 psi. A los 250 psi se le resta esa cantidad "250 - 105.5 = 144.5 psi.0.5 (246.5) 2 / 64.4 = 472; to convert ap if: 472 x 32.2 / 144 = 105.5 psi. That amount is subtracted from 250 psi "250-105.5 = 144.5 psi.
Si el ángulo de la rosca es de 7o y utilizando la ecuación (6) se tiene: 144.5 psi = 10. IKg/cm2; por lo tanto, 10.1 x 429cm2 = 4339 Kg; M = 18 x 4339 = 10W; implica W = 781 IKg.If the thread angle is 7 o and using equation (6) you have: 144.5 psi = 10. IKg / cm 2 ; therefore, 10.1 x 429cm 2 = 4339 Kg; M = 18 x 4339 = 10W; implies W = 781 IKg.
Dm = 5 cm;-λ, = 7o; f = 0.2 se tiene:Dm = 5 cm; -λ, = 7 or ; f = 0.2 you have:
T = 4339 x 5 x (tg7 + 0.2)/{2(l-0.2 tg7) = 3590 Kg-cmT = 4339 x 5 x (tg7 + 0.2) / {2 (l-0.2 tg7) = 3590 Kg-cm
Si se utiliza una palanca de llave con longitud de 60 cm, la fuerza a realizar sería de 60 Kg. El número de giros L = πDm tg7 = 1.93 ~ 2. Como Lτ = 12 cm implica 12/2 = 6 giros.If a key lever with a length of 60 cm is used, the force to be performed would be 60 Kg. The number of turns L = πDm tg7 = 1.93 ~ 2. Since L τ = 12 cm implies 12/2 = 6 turns.
Como puede verse 60 Kg los puede maniobrar un operario con facilidad y una vez hecho este esfuerzo los demás giros son muy suaves.As can be seen 60 Kg can be maneuvered by an operator with ease and once this effort is made the other turns are very smooth.
VALFORZO tiene una peculiaridad que es el asiento semejante a la transición del cuello de una botella pero en forma oblicua. Se infiere que el ángulo de acción de la válvula es menor de 90 °. La superficie es lisa pero ondulada permitiendo un flujo aerodinámico de poca pérdida por fricción. El sistema de válvula doble Fig. (1/6) sirve para evitar ondas de flujo que provoquen el golpe de ariete en la tubería. Generalidades:VALFORZO has a peculiarity that is the seat similar to the transition of the neck of a bottle but obliquely. It follows that the angle of action of the valve is less than 90 °. The surface is smooth but undulating allowing a streamlined flow of low friction loss. The double valve system Fig. (1/6) serves to avoid flow waves that cause water hammer in the pipe. Generalities:
Las válvulas de retención son de válvula oscilante y tienen el mimo movimiento que VALFORZO solo que aquellas no son controlables manualmente. El asiento de las mismas produce pérdidas por fricción ya que no es liso sino que es brusco y cortante. Si el asiento de estas válvulas fuera como VALFORZO en. algún momento la válvula se quedaría entrabada y por lo tanto es necesario el asiento que tienen. El objetivo general es una opción más de la variedad existente! en el mercado. Entre los objetivos específicos de VALFORZO esta el disminuir al mínimo las pérdidas por fricción lo que depende de la forma de las paredes internas y el sello sobre el borde de la válvula. Entre menor sea la protuberancia aerodinámica menor serían las pérdidas por fricción. Esta deformación es necesaria para evitar el roce con las paredes del cuerpo interior.Check valves are oscillating valves and have the same movement as VALFORZO only that those are not manually controllable. The seat of the same produces losses by friction since it is not smooth but it is sharp and sharp. If the seat of these valves were like VALFORZO in. sometime the valve would be locked and therefore the seat they have is necessary. The general objective is one more option of the existing variety! in the market. Among the specific objectives of VALFORZO is to minimize friction losses, which depends on the shape of the internal walls and the seal on the edge of the valve. The smaller the aerodynamic protuberance, the lower the friction losses. This deformation is necessary to avoid rubbing with the inner body walls.
El otro objetivo específico es el costo y lo que depende de esto es el tamaño del cuerpo y los elementos internos. En cuanto a los usos se puede enumerar los siguientes: transporte de agua potable, vapor;, aire a presión, aire acondicionado, bebidas, jugos, combustibles, aceites y otros líquidos limpios. No se recomendaría para fluidos con elementos en suspensión o suciedades que impidan la abertura total de la válvula. Esto se refiere a tuberías de hasta 6" o 10"; a partir de estos tamaños, esta suciedad es despreciable. Los cálculos de los esfuerzos son importantes ya que de ahí dependen los tamaños y materiales de las partes según el diámetro y el uso específico de la tubería.The other specific objective is cost and what depends on this is body size and internal elements. Regarding the uses, the following can be enumerated: transport of drinking water, steam; pressurized air, air conditioning, beverages, juices, fuels, oils and other clean liquids. It would not be recommended for fluids with suspended elements or dirt that prevent the total opening of the valve. This refers to pipes up to 6 "or 10"; From these sizes, this dirt is negligible. The stress calculations are important since the sizes and materials of the parts depend on the diameter and the specific use of the pipe.
VALFORZO tiene la parte superior desmontable mediante tornillos y la unión con la tubería mediante brida. Esto último puede depender del fabricante ya que él puede decidir fabricar soldables, con rosca o dejarla bridada. Ventajas de VALFORZO.VALFORZO has the top part removable by screws and the union with the pipe by means of a flange. The latter may depend on the manufacturer since he can decide to manufacture weldable, threaded or leave it flanged. Advantages of VALFORZO.
Ofrece un espacio en cuanto a volumen menor que una de compuerta.It offers a space in terms of volume smaller than a gate.
Resistencia al paso del fluido menor que una de globo y de compuerta. Costo competitivo con la de compuerta y la de globo; menor costo que una de bola o esférica. No presenta obstáculo como la válvula mariposa. Desventajas de VALFORZOResistance to the passage of fluid less than a balloon and gate. Competitive cost with that of gate and globe; lower cost than a ball or ball. It does not present an obstacle like the butterfly valve. Disadvantages of VALFORZO
En el sistema de válvula doble el tamaño aumenta y por lo tanto aumenta su costo.In the double valve system the size increases and therefore increases its cost.
Descripción de las FigurasDescription of the Figures
La Fig. (1/6) representa el esquema del sistema de doble válvula que produce el "TAPÓN HIDRÁULICO" en casos especiales en que se considere el golpe de ariete por razones de cuidar equipos como turbinas, medidores de flujo y otros. Figura (1/6 )Fig. (1/6) represents the scheme of the double valve system that produces the "HYDRAULIC PLUG" in special cases in which the water hammer is considered for reasons of caring for equipment such as turbines, flow meters and others. Figure (1/6)
La parte Fig. (1/6) (1) representa la junta o unión con la tubería que en este caso se requiere con brida por asunto de mantenimiento. El fabricante si desea puede cambiar esta junta.The part Fig. (1/6) (1) represents the joint or union with the pipe that is required in this case with flange for maintenance. The manufacturer may wish to change this joint.
Fig. (1/6) (2) es la parte superior de la válvula que funciona como tapa para el mantenimiento interno.Fig. (1/6) (2) is the upper part of the valve that functions as a cover for internal maintenance.
Fig. (1/6) (3) es la cabeza donde se ajusta la llave del operario que abre o cierra la válvula. Esta cabeza tiene forma hexagonal u octogonal por lo general pero el fabricante puede cambiar este concepto. El vastago liso permite un sello que el fabricante modificará a su antojo como parte esencial para evitar el goteo. La presión en la tapa superior no es la misma que en la tubería ya que los nidos o refugios de las válvulas impiden el paso del fluido hacia este lugar. Sin embargo, algunos pequeños espacios dejarán pasar humedad inevitablemente. La calidad de la marca, hace que estos sellos mantengan seca esa cámara.Fig. (1/6) (3) is the head where the operator's key that opens or closes the valve is adjusted. This head is usually hexagonal or octagonal in shape but the manufacturer can change this concept. The smooth rod allows a seal that the manufacturer will modify at will as an essential part to prevent dripping. The pressure in the top cover is not the same as in the pipeline since the nests or shelters of the valves prevent the passage of fluid to this place. However, some small spaces will inevitably pass moisture. The quality of the brand, makes these seals keep that camera dry.
Fig. (1/6) (4) es el pasador que semeja la forma de una barra rectangular que pasa a través del tambor de giro produciendo la presión de apertura de la válvula ya que la apertura es el momento crítico de mayor fuerza. Su material debe ser muy fuerte al igual que el tambor de giro.Fig. (1/6) (4) is the pin that resembles the shape of a rectangular bar that passes through the rotating drum producing the opening pressure of the valve since the opening is the critical moment of greatest force. Your material must be very strong like the spinning drum.
Fig. (1/6) (5) es la tuerca roscada internamente para que el tornillo del vastago la mueva verticalmente. Los dos pasadores tanto el izquierdo como el derecho se soportan por un canal donde pasa el cilindro que hace la función de eje al movimiento del pasador. Son dos ejes independientes pero que se mueven al mismo tiempo.Fig. (1/6) (5) is the internally threaded nut so that the rod screw moves it vertically. The two pins both left and right are they support through a channel where the cylinder that acts as the axis passes to the movement of the pin. They are two independent axes but they move at the same time.
Fig. (1/6) (6) es la superficie de la pared inferior que funciona como asiento de las válvulas. Este asiento es liso pero curvo para evitar que la válvula siga y se trabe. Esta pared forma un bulbo para evitar que la válvula roce sobre cualquier superficie. Lo único que impide a la válvula para abrir y dejar pasar el fluido es la presión de éste.Fig. (1/6) (6) is the surface of the lower wall that functions as a valve seat. This seat is smooth but curved to prevent the valve from continuing and locking. This wall forms a bulb to prevent the valve from rubbing on any surface. The only thing that prevents the valve from opening and letting the fluid through is its pressure.
Fig. (1/6) (7) es la o las válvulas que tienen un movimiento angular con centro en el eje del tambor de giro. Se puede apreciar de que no es plana ¿orno la válvula convencional sino que es curva con la misma curvatura que la pared superior. Esto hace que la válvula no presente obstáculo al paso del fluido. También se deduce que el asiento inferior tenga forma redondeada con una protuberancia aerodinámica. Las dos válvulas operan sincrónicamente produciendo una turbulencia del fluido en la región central que suaviza la salida evitando en parte una onda agresiva hacia el compartimiento siguiente. Este efecto se conoce aquí como el "TAPÓN HIDRÁULICO".Fig. (1/6) (7) is the valve or valves that have an angular movement centered on the axis of the rotating drum. It can be seen that the conventional valve is not flat, but that it is curved with the same curvature as the upper wall. This causes that the valve does not present obstacle to the passage of the fluid. It also follows that the lower seat is rounded with an aerodynamic protrusion. The two valves operate synchronously producing a turbulence of the fluid in the central region that softens the outlet avoiding in part an aggressive wave towards the next compartment. This effect is known here as the "HYDRAULIC PLUG".
Fig. (1/6) (8) es el nido o refugio de la válvula y opera como el molde de la misma sellando herméticamente. Es de imaginar que cuando se abre totalmente el sistema, el paso queda libre y el fluido sufre un cambio en su trayectoria muy leve por la forma de las paredes internas del cuerpo de la válvula.Fig. (1/6) (8) is the nest or shelter of the valve and operates as the mold of the valve sealing hermetically. It is to be imagined that when the system is fully opened, the passage is free and the fluid undergoes a very slight change in its trajectory due to the shape of the internal walls of the valve body.
Fig. (1/6) (9) es la vista B-B del nido explicado anteriormente.Fig. (1/6) (9) is the B-B view of the nest explained above.
Fig. (1/6) (10) es la protuberancia que se nota con la abertura de la válvula en la paite de la pared inferior.Fig. (1/6) (10) is the protuberance that shows with the opening of the valve in the bottom wall.
Fig. (1/6) (11) es la pared del cuerpo de la válvula por el lado exterior. En la paite superior puede notarse el borde saliente para sujetarse mediante tornillos a la tapa superior para dar mantenimiento. Figura (2/6)Fig. (1/6) (11) is the wall of the valve body on the outer side. On the upper leg, the protruding edge can be noticed to be fastened by screws to the top cover for maintenance. Figure (2/6)
Esta válvula solo tiene una válvula oscilante forzada que comercialmente se venderá más que la de doble válvula, quizás. Fig. (2/6) (1) es el tambor de giro que tiene una abertura en el centro para que pase el pasador que es el brazo menor de la palanca. Los extremos del pasador tienen ejes adosados formando parte de un solo cuerpo sólido y es por donde se apoyan al cuerpo de la válvula. Al girar este elemento, gira la válvula permitiendo abrirla o cerrarla. El hueco por donde pasa el pasador se hace de tal manera que tenga un retardo para abrir antes la válvula auxiliar que descompresiona la parte de la tubería que contiene el fluido. Este mecanismo del cual se hablará después permite poder abrir la válvula con un esfuerzo mucho menor del que puede existir si no lo hubiera.This valve only has a forced oscillating valve that will be sold commercially more than the double valve, perhaps. Fig. (2/6) (1) is the rotating drum that has an opening in the center so that the pin that is the minor arm of the lever passes. The ends of the pin have attached shafts forming part of a single solid body and that is where they rest on the valve body. When turning this element, turn the valve allowing to open or close it. The hole through which the pin passes is made in such a way that it has a delay to first open the auxiliary valve that decompresses the part of the pipe that contains the fluid. This mechanism, which will be discussed later, allows the valve to be opened with much less effort than it could exist if there were not.
Fig. (2/6) (2) es el sistema telescópico para balancear esfuerzos protegiendo la rosca. Este mecanismo consiste de un conducto hueco por donde deja pasar un pasador tensado mediante un resorte que tiene una fuerza de un 20% de la máxima a su resistencia de prueba. El trabajo de este mecanismo es evitar que la rosca concentre esfuerzos excesivos en un solo lado de la misma y alinea un poco la tuerca de transmisión. Fig. (2/6) (3) es el tambor de giro visto desde un corte A-A.Fig. (2/6) (2) is the telescopic system for balancing efforts protecting the thread. This mechanism consists of a hollow conduit through which a tension pin passes through a spring that has a force of 20% of the maximum to its test resistance. The work of this mechanism is to prevent the thread from concentrating excessive stresses on only one side of it and aligns the transmission nut a bit. Fig. (2/6) (3) is the rotating drum seen from an A-A cut.
Fig. (2/6) (4) es la válvula cerrando el paso al fluido.Fig. (2/6) (4) is the valve closing the passage to the fluid.
Fig. (2/6) (5) es el sello hecho de material elástico como el hule u otro semejante que permite un sello ideal que no deja pasar el mínimo del fluido del otro lado. Este sello debe ser compresible hasta cierto límite de elasticidad para evitar el deterioro del mismo a la hora de abrir que es la situación más crítica. Figura (3/6)Fig. (2/6) (5) is the seal made of elastic material such as rubber or similar that allows an ideal seal that does not let the minimum of the fluid from the other side. This seal must be compressible to a certain limit of elasticity to avoid deteriorating it at the time of opening, which is the most critical situation. Figure (3/6)
Fig. (3/6) (1) es el sello ya mencionado cuando se aloja en el nido de la parte superior del cuerpo de la válvula desde el corte C-C. Este sello no permite que pase el fluido hacia la cámara de mantenimiento de la tapa superior. Fig. (3/6) (2) es el orificio de descompresión de la válvula principal; o sea, el elemento que permite dejar o no pasar el fluido al otro lado y por lo tanto la válvula principal abre holgadamente.Fig. (3/6) (1) is the seal already mentioned when it is housed in the nest of the upper part of the valve body from the C-C cut. This seal does not allow fluid to pass into the maintenance chamber of the top cover. Fig. (3/6) (2) is the decompression orifice of the main valve; that is, the element that allows the fluid to be allowed to pass or not to the other side and therefore the main valve opens loosely.
Fig. (3/6) (3) es el tornillo sin fin del vastago visto desde el corte C-C o sea, la parte superior vista desde adentro del cuerpo de la válvula. ! Fig. (3/6) (4) es el tambor de giro que une mecánicamente la tuerca de transmisión y la válvula en sí. Figura (4/6)Fig. (3/6) (3) is the worm screw of the rod seen from the CC cut, that is, the upper part seen from inside the valve body. ! Fig. (3/6) (4) is the rotating drum that mechanically joins the transmission nut and the valve itself. Figure (4/6)
Fig. (4/6) (1) es la cabeza del tornillo sin fin que sirve para dar vuelta al tornillo mediante una llave que manipula el operario. Este vastago solo tiene movimiento de giro y lo que se mueve verticalmente es la tuerca de transmisión.Fig. (4/6) (1) is the head of the worm that serves to turn the screw using a wrench that the operator manipulates. This rod has only turning movement and what moves vertically is the transmission nut.
Fig. (4/6) (2) es el cilindro o tambor del sistema telescopio y gira con el movimiento de la tuerca o camisa de transmisión.Fig. (4/6) (2) is the cylinder or drum of the telescope system and rotates with the movement of the transmission nut or sleeve.
Fig. (4/6) (3) es la tuerca de transmisión o camisa de transmisión que se desplaza por el tornillo sin fin en sentido vertical.Fig. (4/6) (3) is the transmission nut or transmission sleeve that moves through the worm in a vertical direction.
Fig. (4/6) (4) es la válvula principal.Fig. (4/6) (4) is the main valve.
Fig. (4/6) (5) es el pasador que se flexiona conforme sube o baja la tuerca de transmisión.Fig. (4/6) (5) is the pin that flexes as the transmission nut goes up or down.
Fig. (4/6) (6) es el tambor de giro que permite a la válvula principal moverse angulaimente.Fig. (4/6) (6) is the rotating drum that allows the main valve to move angularly.
Fig. (4/6) (7) es el cable flexible que transmite el movimiento del pasador hacia el mecanismo de la válvula auxiliar.Fig. (4/6) (7) is the flexible cable that transmits the movement of the pin towards the auxiliary valve mechanism.
Fig. (4/6) (8) es la válvula auxiliar que normalmente se encuentra cerrada cuando cierra la válvula principal y se abre en el momento de apertura de ésta. Fig. (4/6) (9) es el sello instalado en el borde de la válvula principal.Fig. (4/6) (8) is the auxiliary valve that is normally closed when the main valve is closed and opened at the time of opening. Fig. (4/6) (9) is the seal installed on the edge of the main valve.
Fig. (4/6) (10) es el eje del pasador que hace rotar al tambor de giro.Fig. (4/6) (10) is the axis of the pin that rotates the rotating drum.
Fig. (4/6) (11) es la superficie inferior del hueco del tambor de giro deformada a propósito para retardar el giro del tambor de giro. Esta superficie es curvada hacia la salida de tal manera que cuando baja la tuerca de transmisión, también baja el pasador pero no gira el tambor de giro hasta un límite en que se garantiza la apertura de la válvula auxiliar.Fig. (4/6) (11) is the underside of the hollow of the rotating drum deformed on purpose to retard the rotation of the rotating drum. This surface is curved towards the exit in such a way that when the transmission nut falls, the pin also lowers but does not rotate the rotation drum to a limit in which the opening of the auxiliary valve is guaranteed.
Fig. (4/6) (12) es la parte cilindrica del tambor de giro que se apoya desde los extremos salientes fig. (4/6) (6). Figura (5/6)Fig. (4/6) (12) is the cylindrical part of the rotating drum that is supported from the projecting ends fig. (4/6) (6). Figure (5/6)
Fig. (5/6) (1) representa la tuerca o camis de transmisión. Aqui no importa tanto la dirección a donde se dirige la camisa de transmisión, simplemente es un análisis de esfuerzos. Esto representa cuantitativamente cual es la fuerza que tiene que ejercer el operario a una palanca de 60 cm de una llave estándar.Fig. (5/6) (1) represents the transmission nut or shirt. The direction of the transmission jacket is not so important here, it is simply a stress analysis. This quantitatively represents the force that the operator has to exert on a 60 cm lever of a standard wrench.
Fig. (5/6) (2) es la superficie de la rosca con un ángulo de λ° que permite al operario reducir su fuerza de palanqueo.Fig. (5/6) (2) is the surface of the thread with an angle of λ ° that allows the operator to reduce his leverage force.
Fig. (5/6) (3) es la base del tornillo sin fin o el plano donde opera la llave del operario. Figura (6/6)Fig. (5/6) (3) is the base of the worm or the plane where the operator's key operates. Figure (6/6)
Es el mecanismo de la válvula auxiliar que sirve para despresurizar la válvula principal y que ésta pueda abrirse con una fuerza razonable de un operario común y corriente.It is the mechanism of the auxiliary valve that serves to depressurize the main valve and that it can be opened with a reasonable force from a common operator.
Fig. (6/6) (1) representa el empuje del pasador a través deI cable impulsor del sistema de apertura del mecanismo de la válvula auxiliar.Fig. (6/6) (1) represents the thrust of the pin through the impeller cable of the auxiliary valve mechanism opening system.
Fig. (6/6) (2) es el cable de impulso que es un resorte comprimido que pemiite doblarse por una guía hasta llegar a tocar con el pantógrafo que al cerrarse abre más rápidamente la válvula auxiliar.Fig. (6/6) (2) is the impulse cable, which is a compressed spring that allows it to bend by a guide until it reaches the pantograph which, when closed, opens the auxiliary valve more quickly.
Fig. (6/6) (3) es el elemento que hace cerrar el pantógrafo y a la vez moverlo en sentido que garantice la apertura completa del orificio de la válvula auxiliar.Fig. (6/6) (3) is the element that makes the pantograph close and at the same time move it in a direction that guarantees the complete opening of the auxiliary valve orifice.
Fig. (6/6) (4) es el pantógrafo simple con sus ruedas para facilitar la apertura total de la válvula auxiliar.Fig. (6/6) (4) is the simple pantograph with its wheels to facilitate the total opening of the auxiliary valve.
Fig. (6/6) (5) es la ranura por donde se desliza el eje del pantógrafo.Fig. (6/6) (5) is the slot through which the axis of the pantograph slides.
Fig. (6/6) (6) es el espacio total de la salida del fluido una vez abierta la válvula auxiliar.Fig. (6/6) (6) is the total fluid outlet space once the auxiliary valve is opened.
Fig. (6/6) (7) es el orificio de la válvula auxiliar.Fig. (6/6) (7) is the orifice of the auxiliary valve.
Fig. (6/6) (8) son los resortes que mantienen cer r ada la válvula auxiliar durante el tiempo que la válvula principal se mantenga cerrad a.Fig. (6/6) (8) are the springs that keep the auxiliary valve closed for as long as the main valve is kept closed.
El mecanismo de la válvula auxiliar no es un artefacto invariable ya que existen muchas formas para abrir una válvula como esta. No es un aporte de invención añadido a la idea principal pero si es indispensa ble para descompresionar la válvula principal.The auxiliary valve mechanism is not an invariable device since there are many ways to open a valve like this. It is not a contribution of invention added to the main idea but it is essential to decompress the main valve.
El uso de VALFORZO para tuberías de presión deberá ser mucho más sofisticado y mejorado para garantizar la efectividad y Ia eficiencia de la misma. VALFORZO de doble válvula solo se utiliza con líquidos, el transporte de gases por ser compresibles no tiene problemas con golpes de ariete y procede el uso de una sola válvula.The use of VALFORZO for pressure pipes must be much more sophisticated and improved to guarantee its effectiveness and efficiency. VALFORZO double valve is only used with liquids, the transport of gases to be compressible has no problems with water hammer and the use of a single valve is appropriate.
Importante es la investigación y desarrollo de varios modelos para poder determinar fortalezas que no se han dicho en este escrito. No se sabe si esta válvula funcione como reguladora de flujo; de momento, se dice que mejor utilizarla para abrir o cerrar completamente. La fabricación de modelos permite también escoger los materiales y los tamaños de las partes internas. Probablemente, el uso de VALFORZO en el sector residencial tenga un uso más discriminado pero en la industria si tendrá mucha importancia. Para válvulas grandes de 1 metro y más de diámetro es conveniente el uso del "Tapón Hidráulico" o sea, doble válvula. Con ei "TapónImportant is the research and development of several models to determine strengths that have not been said in this paper. It is not known if this valve works as a flow regulator; For now, it is said that it is best to use it to open or close completely. The manufacture of models also allows to choose the materials and the sizes of the internal parts. Probably, the use of VALFORZO in the residential sector has a more discriminated use but in the industry it will be very important. For large valves of 1 meter and more in diameter it is convenient to use the "Hydraulic Plug", that is, double valve. With ei "Stopper
Hidráulico" si se puede regular y controlar el flujo de agua en este caso tanto corno lo puede hacer la válvula mariposa o la válvula esférica. Hydraulic "if you can regulate and control the flow of water in this case as much as the butterfly valve or the ball valve can do.

Claims

REIVINDICACIONES "VÁLVULA DE GIRO FORZADO OBLICUA" (VALFORZO) consiste de las siguientes partes:CLAIMS "OBLIQUE FORCED TURN VALVE" (VALFORZO) consists of the following parts:
1-. La válvula en sí es una lámina en forma de elipse doblada formando una rodaja segmento circular en su sección transversal y que coincide con el radio de la tubería o el conducto. Sistema de doble válvula para producir el "Tapon Hidráulico" y el sistema simple para uso general de una sola válvula.one-. The valve itself is a folded ellipse shaped sheet forming a circular segment slice in its cross section and which coincides with the radius of the pipe or conduit. Double valve system to produce the "Hydraulic Plug" and the simple system for general use of a single valve.
2-. El sello alrededor del borde de dicha rodaja normalmente metálica de material resistente y flexible, hule en algunos casos. 3-. Asiento del sello de la válvula, liso de forma aerodinámica que permite contacto y el mínimo de fricción. Su forma es ondulada y en posición oblicua.2-. The seal around the edge of said normally metallic slice of resistant and flexible material, rubber in some cases. 3-. Seat of the valve seal, smooth aerodynamically allowing contact and minimum friction. Its shape is wavy and oblique.
4-. Tambor de rotación que es el aditamento que permite hacer girar la válvula en su recorrido de abrir y cerrar. Tiene una abertura en el centro por donde pasa el pasador de concentración de esfuerzos pura abrir la válvula. 5-. Pasador de concentración de esfuerzos es el elemento que abre tanto Ia válvula principal como la válvula de descompresión si la hubiera. Consiste en una barra sólida en acero rígido de alta resistencia a esfuerzos severos con longitud para producir apalancamiento a la superficie inferior, con o sin retardo.4-. Rotation drum which is the attachment that allows the valve to be rotated in its open and close path. It has an opening in the center through which the pure stress concentration pin passes the valve. 5-. Stress concentration pin is the element that opens both the main valve and the decompression valve if there is one. It consists of a solid bar in rigid steel of high resistance to severe stresses with length to produce leverage to the lower surface, with or without delay.
6- . Válvula auxiliar o de descompresión es el mecanismo que permite disminuir la presión de apertura de la válvula principal a una presión realizable para un operario.6-. Auxiliary or decompression valve is the mechanism that reduces the opening pressure of the main valve to a workable pressure for an operator.
La forma del hueco del pasador deberá ser curveada para dar un retardo antes de abrirThe shape of the pin hole should be curved to give a delay before opening
Ia válvula principal y abrir antes la válvula auxiliar. Consiste en unos resortes que obligan a tapar el orificio de la válvula principal en oposición al mecanismo pantógrafo sometido al impulso del cable o resorte de tracción flexible que trasmite esa fuerza. El pantógrafo tiene ruedas para disminuir el ángulo de ataque y alargar la distancia. También el cable o resorte de tracción posee un dispositivo para empujar y cerrar dicho ángulo.Ia main valve and open the auxiliary valve first. It consists of springs that make it necessary to cover the orifice of the main valve as opposed to the pantograph mechanism subjected to the impulse of the flexible traction cable or spring that transmits that force. The pantograph has wheels to decrease the angle of attack and lengthen the distance. Also the cable or tension spring has a device for pushing and closing said angle.
7-. La tuerca de transmisión que es movida por un vastago roscado (tornillo sin fin) que se gira por el lado exterior cabeza hexagonal, otro u octogonal consiste de una camisa con rosca interior (hembra) que se desplaza verticalmente. Tiene en sus laterales un compensador de esfuerzos que son tubos concéntricos a manera de telescopio. Se unen perpendicularmente al cilindro eje que permite el giro cuando aquella se mueve. El telescopio lleva internamente un resorte que con su fuerza compensa esfuerzos en la rosca. Por el lado opuesto el pasador donde más se concentra esfuerzos. La rosca tiene un ángulo de ataque de mínimo esfuerzo para el operario.7-. The transmission nut that is moved by a threaded rod (worm screw) that rotates on the outer side hexagonal head, another or octagonal consists of a shirt with inner thread (female) that moves vertically. It has in its lateral a compensator of efforts that are concentric tubes as a telescope. They are attached perpendicularly to the axis cylinder that allows the rotation when it moves. The telescope carries internally a spring that with its force compensates efforts in the thread. On the opposite side the pin where efforts are most concentrated. The thread has an angle of attack of minimum effort for the operator.
8-. El nido de la válvula que consiste en el espacio para guarecer la válvula principal y formar tina superficie lisa a ras de la superficie interna de la tubería o el conducto del cuerpo de la misma. 9-. El tornillo macho que trasmite la fuerza de la palanca impulsada por un operario consiste en una rosca muy resistente a los esfuerzos cortantes y de torcedura que se manifiestan al abrir la válvula.8-. The nest of the valve that consists of the space to cover the main valve and form a smooth surface flush with the internal surface of the pipe or the duct of the body of the same. 9-. The male screw that transmits the force of the lever driven by an operator consists of a thread that is very resistant to the shear and twist forces that are manifested when the valve is opened.
10-. El cable flexible o resorte de tracción o comprimido que consiste en un resorte con las espiras juntas que permite el movimiento sobre, curvas con guías de sujeción y permite abrir Ia válvula auxiliar.10-. The flexible cable or tension or compressed spring consisting of a spring with the turns together that allows movement over, curves with clamping guides and allows opening the auxiliary valve.
11- . Cámara de mantenimiento por la parte superior que permite extraer las partes del equipo y reemplazar cualquier elemento. eleven- . Maintenance chamber at the top that allows to extract the parts of the equipment and replace any element.
PCT/CR2005/000002 2005-01-25 2005-01-25 Inclined valve with forced rotation (valforzo) WO2006079294A1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3348569A (en) * 1964-11-30 1967-10-24 Halliburton Co Valves
US4736771A (en) * 1985-06-07 1988-04-12 Forsac Valves Limited Valve assembly for pipeline
ES2026076A6 (en) * 1990-01-25 1992-04-01 Westinghouse Electric Corp Diagnostic system and method of evaluating performance of valve in steam turbine-system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3348569A (en) * 1964-11-30 1967-10-24 Halliburton Co Valves
US4736771A (en) * 1985-06-07 1988-04-12 Forsac Valves Limited Valve assembly for pipeline
ES2026076A6 (en) * 1990-01-25 1992-04-01 Westinghouse Electric Corp Diagnostic system and method of evaluating performance of valve in steam turbine-system

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