WO2008056014A1 - Liquid pressure converter for use in pumping systems without any external energy input - Google Patents

Liquid pressure converter for use in pumping systems without any external energy input Download PDF

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Publication number
WO2008056014A1
WO2008056014A1 PCT/ES2007/000635 ES2007000635W WO2008056014A1 WO 2008056014 A1 WO2008056014 A1 WO 2008056014A1 ES 2007000635 W ES2007000635 W ES 2007000635W WO 2008056014 A1 WO2008056014 A1 WO 2008056014A1
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Prior art keywords
liquid
pressure
inlet
outlet
accumulators
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PCT/ES2007/000635
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Spanish (es)
French (fr)
Inventor
José Ignacio Morales Aragones
Original Assignee
Morales Aragones Jose Ignacio
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Publication date
Application filed by Morales Aragones Jose Ignacio filed Critical Morales Aragones Jose Ignacio
Priority to EP07823040A priority Critical patent/EP2096322A4/en
Publication of WO2008056014A1 publication Critical patent/WO2008056014A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B3/00—Intensifiers or fluid-pressure converters, e.g. pressure exchangers; Conveying pressure from one fluid system to another, without contact between the fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
    • F15B1/02—Installations or systems with accumulators
    • F15B1/04—Accumulators

Definitions

  • Liquid Pressure Converter with application in pumping systems without external energy input.
  • the invention is included in the technical sector of Hydraulics.
  • the current systems for raising the pressure of a liquid are basically divided into two types:
  • Centrifugal Systems In which a rotating part prints kinetic energy to the liquid molecules, which is transformed into pressure energy upon contact with the walls of the outlet vessel.
  • Positive Displacement Systems In which the pressure is increased by a forced reduction of the volume of the chamber containing the liquid.
  • the device described will seek to increase the pressure of a liquid source at the cost of reducing its flow capacity, thus avoiding the need for a source of external energy other than that contained in the initial source.
  • the Pressure Converter will be based on devices that we will call Accumulators of
  • These devices have an inlet and an outlet pipe, so that if liquid is injected through the inlet, the corresponding expulsion of liquid is forced through the outlet, while creating a pressure difference between inlet and outlet directly proportional to the volume of liquid injected.
  • the pressure difference thus established is directly proportional to the deformation of the spring, which in turn is directly proportional to the volume of liquid injected by the inlet, which implies the relationship of direct proportionality between pressure difference and volume of liquid injected that It was set out in the definition.
  • the name of pressure accumulators is used, because if in this last situation the inlet and outlet pipes are closed, the pressure difference established indefinitely will be maintained until the liquid circulation is allowed again.
  • Another possible implementation of the pressure accumulator is shown in figures 2 and 3, and consists of an inverted siphon-shaped pipe, with the upper bend C filled with a low density liquid A. The rest of the pipe (up to inlet and outlet holes), is filled with another liquid B of greater density than the previous one, which is on which it is intended to establish the pressure difference.
  • the difference in densities ensures (under relatively slow movements), that at the points of contact between the two liquids the less dense always occupies the upper part, and the denser the lower part, and that consequently they do not mix.
  • This initial liquid pressure (which can be supplied by a small slope) is used to "charge” in parallel a quantity N of equal pressure accumulators. To do this, all the inputs on one side and all the outputs on the other are connected to each other, as shown in Figure 4. Next, with the help of the initial pressure available, liquid is injected through the entrances joined together, and the expulsion of the corresponding volume of liquid through the outlets. When the balance is established, all accumulators will have a pressure difference between inlet and outlet equal to the initial pressure available.
  • the actuation of the valve assembly can be electric, or mechanical, by means of the pressure variations in the system, so that the need for any external energy input is avoided.
  • the described system in its pressure multiplier version, allows a pumping system to be constructed from a small liquid drop (which, for example, can be easily achieved in the course of a river), at an arbitrary height, without any Need to provide external energy. Therefore, it is an extraordinary solution for pumping liquids in isolated locations of the electricity network, or simply as an ecological pumping system, especially interesting for irrigation or water supply in developing countries.
  • Figure 1 Shows a possible implementation of the basic element of the system, the pressure accumulator.
  • Figures 2 and 3 They show another possible implementation of the pressure accumulator.
  • Figure 4 Shows the "parallel" connection configuration of the pressure accumulators.
  • Figure 5 Shows the "cascade" connection configuration of the pressure accumulators.

Abstract

The invention relates to a liquid pressure converter for use in pumping systems without any external energy input. The system is based on pressure accumulators consisting of devices having an inlet tube and an outlet tube, in which a pressure difference is created between the inlet and the outlet when a liquid is injected through the inlet tube, said difference being directly proportional to the volume of liquid injected. The pressure is converted using synchronised valves in order to alternate the connection of several accumulators between a parallel configuration (interconnected inlets and interconnected outlets) involving low pressure and high flow rate and a cascade configuration (the outlet of each being connected to the inlet of the next) involving high pressure and low flow rate. Pressure conversion systems based on said arrangement are claimed. The invention is suitable for use in hydraulics, enabling liquids to be pumped without using external energy.

Description

DESCRIPCIÓN DESCRIPTION
Convertidor de Presión de Líquidos con aplicación en sistemas de bombeo sin aportación de energía externa. La invención se engloba en el sector técnico de Ia Hidráulica.Liquid Pressure Converter with application in pumping systems without external energy input. The invention is included in the technical sector of Hydraulics.
Estado de Ia TécnicaState of the Technique
Los sistemas actuales para elevar Ia presión de un líquido (por ejemplo para bombearlo a cierta altura) se dividen fundamentalmente en dos tipos:The current systems for raising the pressure of a liquid (for example to pump it at a certain height) are basically divided into two types:
Sistemas Centrífugos: En los que una pieza giratoria imprime energía cinética a las moléculas de líquido, que se transforma en energía de presión al contacto con las paredes del recipiente de salida.Centrifugal Systems: In which a rotating part prints kinetic energy to the liquid molecules, which is transformed into pressure energy upon contact with the walls of the outlet vessel.
Sistemas de Desplazamiento Positivo: En los que se aumenta Ia presión por una reducción forzada del volumen de Ia cámara que contiene el líquido.Positive Displacement Systems: In which the pressure is increased by a forced reduction of the volume of the chamber containing the liquid.
En ambos casos, es necesaria una aportación de energía exterior (para mover el rotor o forzar Ia reducción de Ia cámara de bombeo según el caso).In both cases, an external energy input is necessary (to move the rotor or force the reduction of the pumping chamber according to the case).
DescripciónDescription
El dispositivo que se describe, pretenderá conseguir el aumento de Ia presión de una fuente de líquido a costa de disminuir su capacidad de caudal, eludiendo así Ia necesidad de una fuente de energía externa distinta a Ia contenida en Ia fuente inicial. El Convertidor de Presión, se basará en unos dispositivos que llamaremos Acumuladores deThe device described will seek to increase the pressure of a liquid source at the cost of reducing its flow capacity, thus avoiding the need for a source of external energy other than that contained in the initial source. The Pressure Converter will be based on devices that we will call Accumulators of
Presión.Pressure.
Estos dispositivos, disponen de una tubería de entrada y otra de salida, de forma que si se inyecta líquido por Ia entrada, se fuerza Ia correspondiente expulsión de líquido por Ia salida, a Ia vez que se crea una diferencia de presión entre entrada y salida directamente proporcional al volumen de líquido inyectado.These devices have an inlet and an outlet pipe, so that if liquid is injected through the inlet, the corresponding expulsion of liquid is forced through the outlet, while creating a pressure difference between inlet and outlet directly proportional to the volume of liquid injected.
Una posible implementación de los acumuladores de presión se muestra en Ia figura 1.A possible implementation of the pressure accumulators is shown in Figure 1.
Consiste en un cilindro hueco con sendas tuberías de acceso en los extremos, y en su interior un émbolo que puede desplazarse a Io largo del eje del cilindro y un muelle a uno de los lados del émbolo. Si se introduce líquido por Ia tubería de entrada E, éste pasa a Ia cámara A, forzando al émbolo D a desplazarse en contra de Ia fuerza del muelle M. Esto reduce el volumen de Ia cámara B, y provoca Ia salida a través de Ia tubería de salida S de un volumen de líquido igual al que se introdujo por Ia entrada E. Además, entre Ia tubería de entrada E y Ia tubería de salida S, se establece una diferencia de presión provocada por el empuje del muelle M aplicado sobre el émbolo D, que es igual al producto de Ia fuerza ejercida por el muelle por Ia superficie del émbolo.It consists of a hollow cylinder with two access pipes at the ends, and inside it a piston that can move along the axis of the cylinder and a spring on one side of the piston. If liquid is introduced through the inlet pipe E, it passes to the chamber A, forcing the plunger D to move against the force of the spring M. This reduces the volume of the chamber B, and causes the outlet through the outlet pipe S of a volume of liquid equal to that introduced by the inlet E. In addition, between the inlet pipe E and the outlet pipe S, a pressure difference caused by the thrust of the spring M applied on the piston D, which is equal to the product of the force exerted by the spring by the surface of the piston.
La diferencia de presión así establecida, es directamente proporcional a Ia deformación del muelle, que a su vez es directamente proporcional al volumen de líquido inyectado por Ia entrada, Io que supone Ia relación de proporcionalidad directa entre diferencia de presión y volumen de líquido inyectado que se exponía en Ia definición. Se usa el nombre de acumuladores de presión, porque si en esta última situación se cierran las tuberías de entrada y salida, se mantendrá Ia diferencia de presión establecida indefinidamente hasta que se permita de nuevo Ia circulación de líquido. Otra posible implementación del acumulador de presión, se muestra en las figuras 2 y 3, y consiste en una tubería en forma de sifón invertido, con el codo superior C relleno de un líquido de baja densidad A. El resto de Ia tubería (hasta los orificios de entrada y salida), está rellena con otro líquido B de mayor densidad que el anterior, que es sobre el que se pretende establecer Ia diferencia de presión. La diferencia de densidades asegura (bajo movimientos relativamente lentos), que en los puntos de contacto entre ambos líquidos el menos denso ocupe siempre Ia parte superior, y el mas denso Ia parte inferior, y que en consecuencia no se mezclen.The pressure difference thus established is directly proportional to the deformation of the spring, which in turn is directly proportional to the volume of liquid injected by the inlet, which implies the relationship of direct proportionality between pressure difference and volume of liquid injected that It was set out in the definition. The name of pressure accumulators is used, because if in this last situation the inlet and outlet pipes are closed, the pressure difference established indefinitely will be maintained until the liquid circulation is allowed again. Another possible implementation of the pressure accumulator is shown in figures 2 and 3, and consists of an inverted siphon-shaped pipe, with the upper bend C filled with a low density liquid A. The rest of the pipe (up to inlet and outlet holes), is filled with another liquid B of greater density than the previous one, which is on which it is intended to establish the pressure difference. The difference in densities ensures (under relatively slow movements), that at the points of contact between the two liquids the less dense always occupies the upper part, and the denser the lower part, and that consequently they do not mix.
Si a partir de Ia posición de reposo de Ia figura 2, se inyecta líquido B por Ia tubería de entrada E, se fuerza el desplazamiento del tramo de líquido de baja densidad A, y se establece una diferencia de altura h entre los dos puntos de contacto de ambos líquidos según se muestra en Ia figura 3. Por Ia tubería de salida S, habrá salido entonces un volumen de líquido B, igual al inyectado por Ia entrada E, y además, entre entrada y salida se establecerá una diferencia de presión igual a Ia diferencia entre las presiones hidrostáticas ejercidas por Ia columna de líquido denso y altura h de un lado, y Ia columna de líquido de baja densidad y Ia misma altura h del otro lado. La diferencia de presión entre entrada y salida así creada es directamente proporcional a Ia altura h, y obviamente directamente proporcional al volumen de líquido inyectado por Ia entrada E. El sistema de conversión de presión propiamente dicho, se basará en Ia asociación de varios acumuladores de presión en cascada y en paralelo de forma alternativa para conseguir multiplicar (o dividir) una presión de líquido inicial de Ia que ya se dispone.If, from the resting position of Figure 2, liquid B is injected through the inlet pipe E, the displacement of the low density liquid section A is forced, and a height difference h is established between the two points of contact of both liquids as shown in Figure 3. Through the outlet pipe S, then a volume of liquid B will have come out, equal to that injected by the inlet E, and in addition, an equal pressure difference will be established between inlet and outlet at the difference between the hydrostatic pressures exerted by the column of dense liquid and height h of one side, and the column of liquid of low density and the same height h of the other side. The pressure difference between inlet and outlet thus created is directly proportional to the height h, and obviously directly proportional to the volume of liquid injected by the inlet E. The pressure conversion system itself will be based on the association of several accumulators of cascade and parallel pressure alternatively to multiply (or divide) an initial liquid pressure that is already available.
Esta presión de líquido inicial (que puede ser suministrada por un pequeño desnivel) se emplea para "cargar" en paralelo una cantidad N de acumuladores de presión iguales. Para ello se conectan entre sí todas las entradas por un lado y todas las salidas por otro, según se muestra en Ia figura 4. A continuación ayudándose de Ia presión inicial disponible, se inyecta líquido por las entradas unidas entre si, y se permite Ia expulsión del correspondiente volumen de líquido por las salidas. Cuando se establezca el equilibrio, todos los acumuladores dispondrán de una diferencia de presión entre entrada y salida igual a Ia presión inicial de que dispongamos. En esta situación, conectamos los N acumuladores de presión en "cascada", es decir, con Ia salida del primero unida a Ia entrada del segundo, Ia salida del segundo a Ia entrada del tercero, y así sucesivamente hasta el último, de forma que Ia presión total entre Ia entrada del primer acumulador de presión y Ia salida del último de ellos, es, salvo pérdidas, N veces mayor que Ia presión inicial de Ia que partimos. Obsérvese que el volumen de líquido que se expulsa a alta presión, es N veces menos que el volumen necesario para llenar los N acumuladores durante el proceso de carga, por Io que efectivamente se consigue una multiplicación de Ia presión a costa de una disminución de caudal, sin necesidad de aportaciones extemas de energía. Si el proceso se efectúa a Ia inversa, cargando los acumuladores de presión con Ia presión inicial disponible en una configuración en "cascada", y conectándolos a continuación en paralelo, se obtendrá una diferencia de presión final N veces menos que Ia inicial (y una capacidad de caudalThis initial liquid pressure (which can be supplied by a small slope) is used to "charge" in parallel a quantity N of equal pressure accumulators. To do this, all the inputs on one side and all the outputs on the other are connected to each other, as shown in Figure 4. Next, with the help of the initial pressure available, liquid is injected through the entrances joined together, and the expulsion of the corresponding volume of liquid through the outlets. When the balance is established, all accumulators will have a pressure difference between inlet and outlet equal to the initial pressure available. In this situation, we connect the N pressure accumulators in "cascade", that is, with the output of the first connected to the input of the second, the output of the second to the input of the third, and so on until the last, so that The total pressure between the inlet of the first pressure accumulator and the outlet of the last of them, is, except losses, N times greater than the initial pressure from which we started. Note that the volume of liquid that is expelled at high pressure, is N times less than the volume necessary to fill the N accumulators during the charging process, so that a multiplication of the pressure is effectively achieved at the cost of a decrease in flow , without the need for external energy contributions. If the process is carried out in reverse, charging the pressure accumulators with the initial pressure available in a "cascade" configuration, and then connecting them in parallel, a final pressure difference N times less than the initial one will be obtained (and a flow capacity
N veces mayor). Para cambiar entre Ia configuración en "paralelo" y en "cascada" de los acumuladores de presión, se utilizará un conjunto de válvulas sincronizadas entre si, capaz de conmutar entre ambas configuraciones.N times higher). To switch between the "parallel" and "cascade" configuration of the pressure accumulators, a set of valves synchronized with each other will be used, capable of switching between both configurations.
El accionamiento del conjunto de válvulas puede ser eléctrico, o bien mecánico, mediante las propias variaciones de presión en el sistema, de forma que se evite Ia necesidad de cualquier aportación de energía externa.The actuation of the valve assembly can be electric, or mechanical, by means of the pressure variations in the system, so that the need for any external energy input is avoided.
Ventajas.Advantages.
El sistema descrito, en su versión de multiplicador de presión, permite construir un sistema de bombeo a partir de un pequeño desnivel de líquido (que por ejemplo, se puede conseguir fácilmente en el curso de un río), a una altura arbitraria, sin ninguna necesidad de aportar energía externa. Por Io tanto resulta una extraordinaria solución para el bombeo de líquidos en emplazamientos aislados de Ia red eléctrica, o sencillamente como un sistema de bombeo ecológico, especialmente interesante para el regadío o abastecimiento de agua en países en vías de desarrollo.The described system, in its pressure multiplier version, allows a pumping system to be constructed from a small liquid drop (which, for example, can be easily achieved in the course of a river), at an arbitrary height, without any Need to provide external energy. Therefore, it is an extraordinary solution for pumping liquids in isolated locations of the electricity network, or simply as an ecological pumping system, especially interesting for irrigation or water supply in developing countries.
Breve Descripción de los Dibujos. Figura 1 : Muestra una posible Implementación del elemento básico del sistema, el acumulador de presión.Brief Description of the Drawings. Figure 1: Shows a possible implementation of the basic element of the system, the pressure accumulator.
Figuras 2 y 3: Muestran otra posible implementación del acumulador de presión.Figures 2 and 3: They show another possible implementation of the pressure accumulator.
Figura 4: Muestra Ia configuración de conexión "en paralelo" de los acumuladores de presión.Figure 4: Shows the "parallel" connection configuration of the pressure accumulators.
Figura 5: Muestra Ia configuración de conexión "en cascada" de los acumuladores de presión. Figure 5: Shows the "cascade" connection configuration of the pressure accumulators.

Claims

REIVINDICACIONES
1.-Convertidor de Presión de Líquidos con aplicación en sistemas de bombeo sin aportación de energía externa que contiene: (a) varios acumuladores de presión, que consisten en unos dispositivos con una tubería de entrada y otra de salida, de forma que si se inyecta líquido por Ia entrada, se fuerza Ia correspondiente expulsión de líquido por Ia salida, a Ia vez que se crea una diferencia de presión entre entrada y salida directamente proporcional al volumen de líquido inyectado, (b) Un conjunto de válvulas sincronizadas que permiten alternar una asociación de los acumuladores anteriores entre una configuración "paralelo" (entradas unidas entre si y salidas unidas entre si) y otra configuración en "cascada" (cada salida unida a Ia entrada del siguiente, excepto Ia primera entrada y Ia última salida), de forma que Ia inyección de líquido en una configuración paralelo, y Ia extracción del mismo en una configuración en cascada, permite aumentar Ia presión del líquido, y Ia operación opuesta permite disminuirla. 1.-Liquid Pressure Converter with application in pumping systems without external energy input that contains: (a) several pressure accumulators, which consist of devices with an inlet and an outlet pipe, so that if Injecting liquid through the inlet, the corresponding expulsion of liquid is forced through the outlet, while creating a pressure difference between inlet and outlet directly proportional to the volume of injected liquid, (b) A set of synchronized valves that allow alternating an association of the previous accumulators between a "parallel" configuration (inputs linked together and outputs linked together) and another configuration "cascade" (each output linked to the next input, except the first input and the last output), so that the injection of liquid in a parallel configuration, and the extraction thereof in a cascade configuration, allows to increase the liquid pressure or, and the opposite operation allows to decrease it.
2.-Convertidor de Presión de Líquidos como el descrito en Ia reivindicación 1 , en que los acumuladores de presión consisten en un cilindro hueco con sendas tuberías de acceso en los extremos, en su interior un émbolo que puede desplazarse a Io largo del eje del cilindro y un muelle en uno de los lados del émbolo, de forma que Ia entrada de líquido fuerza el desplazamiento del émbolo en contra del muelle, estableciéndose una diferencia de presión entre entrada y salida proporcional al volumen de líquido inyectado.2.-Liquid Pressure Converter as described in claim 1, in which the pressure accumulators consist of a hollow cylinder with individual access pipes at the ends, inside a piston that can move along the axis of the cylinder and a spring on one of the sides of the plunger, so that the liquid inlet forces the displacement of the piston against the spring, establishing a pressure difference between inlet and outlet proportional to the volume of liquid injected.
3.- Convertidor de Presión de Líquidos como el descrito en Ia reivindicación 1, en que los acumuladores de presión consisten en una tubería en forma de sifón invertido, con el codo superior relleno de un líquido de baja densidad, y el resto de Ia tubería (hasta los orificios de entrada y salida), rellena con otro líquido de mayor densidad que el anterior, que es sobre el que se pretende establecer Ia diferencia de presión, de forma que Ia inyección de este segundo líquido fuerza el desplazamiento vertical del tramo de líquido de baja densidad, estableciendo así una diferencia de presión entre entrada y salida proporcional al líquido inyectado. 3.- Liquid Pressure Converter as described in claim 1, in which the pressure accumulators consist of an inverted siphon-shaped pipe, with the upper elbow filled with a low density liquid, and the rest of the pipe (up to the inlet and outlet holes), it is filled with another liquid of greater density than the previous one, which is what is intended to establish the pressure difference, so that the injection of this second liquid forces the vertical displacement of the section of low density liquid, thus establishing a pressure difference between inlet and outlet proportional to the injected liquid.
PCT/ES2007/000635 2006-11-10 2007-11-08 Liquid pressure converter for use in pumping systems without any external energy input WO2008056014A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07823040A EP2096322A4 (en) 2006-11-10 2007-11-08 Liquid pressure converter for use in pumping systems without any external energy input

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Application Number Priority Date Filing Date Title
ESP200602945 2006-11-10
ES200602945A ES2316260B1 (en) 2006-11-10 2006-11-10 CONVERTER OF PRESSURE OF LIQUIDS WITH APPLICATION IN PUMP SYSTEMS WITHOUT CONTRIBUTION OF EXTERNAL ENERGY.

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CN102588356A (en) * 2012-03-15 2012-07-18 天津大学 Rotary fluid pressure switcher with connected single cylinder
US20170343019A1 (en) * 2016-05-25 2017-11-30 GE Oil & Gas UK, Ltd. Actuator assist apparatus, actuator system and method

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CN105927600B (en) * 2016-06-07 2020-01-10 上海必博机械有限公司 Synchronous shunting supercharger

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US5971027A (en) * 1996-07-01 1999-10-26 Wisconsin Alumni Research Foundation Accumulator for energy storage and delivery at multiple pressures
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Publication number Priority date Publication date Assignee Title
CN102588356A (en) * 2012-03-15 2012-07-18 天津大学 Rotary fluid pressure switcher with connected single cylinder
US20170343019A1 (en) * 2016-05-25 2017-11-30 GE Oil & Gas UK, Ltd. Actuator assist apparatus, actuator system and method
US10851805B2 (en) * 2016-05-25 2020-12-01 GE Oil & Gas UK, Ltd. Actuator assist apparatus, actuator system and method

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ES2316260B1 (en) 2010-01-12
ES2316260A1 (en) 2009-04-01
EP2096322A1 (en) 2009-09-02
EP2096322A4 (en) 2012-04-18

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