ES2388878T3 - Station for supplying pressurized gas to tanks, in particular tanks mounted on motor vehicles - Google Patents

Station for supplying pressurized gas to tanks, in particular tanks mounted on motor vehicles Download PDF

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Publication number
ES2388878T3
ES2388878T3 ES07104310T ES07104310T ES2388878T3 ES 2388878 T3 ES2388878 T3 ES 2388878T3 ES 07104310 T ES07104310 T ES 07104310T ES 07104310 T ES07104310 T ES 07104310T ES 2388878 T3 ES2388878 T3 ES 2388878T3
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Spain
Prior art keywords
motor
tanks
station
mol
pol
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ES07104310T
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Spanish (es)
Inventor
Luciano Ghergo
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G I & E SpA Unipersonale
Gi & E SpA Unipersonale
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G I & E SpA Unipersonale
Gi & E SpA Unipersonale
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/12—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0107—Single phase
    • F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/033—Small pressure, e.g. for liquefied gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/01—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
    • F17C2225/0107—Single phase
    • F17C2225/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/03—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the pressure level
    • F17C2225/036—Very high pressure, i.e. above 80 bars
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/01—Propulsion of the fluid
    • F17C2227/0128—Propulsion of the fluid with pumps or compressors
    • F17C2227/0157—Compressors
    • F17C2227/0164—Compressors with specified compressor type, e.g. piston or impulsive type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0337—Heat exchange with the fluid by cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/043—Pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/06—Controlling or regulating of parameters as output values
    • F17C2250/0605—Parameters
    • F17C2250/0626—Pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/04—Reducing risks and environmental impact
    • F17C2260/042—Reducing risk of explosion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/06—Fluid distribution
    • F17C2265/065—Fluid distribution for refueling vehicle fuel tanks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0165—Applications for fluid transport or storage on the road
    • F17C2270/0168—Applications for fluid transport or storage on the road by vehicles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)

Abstract

Estación para suministrar gas presurizado a depósitos, en particular depósitos instalados en vehiculos amotor, del tipo que incluye un grupo (C) de compresión, que se hace funcionar mediante medios detransmisión por un motor (M), cuya entrada de aspiración esta conectada a una red (RG) de distribución dedicho gas a baja presión, y cuya distribuci6n esta funcionalmente conectada a un dispositivo (D) paradistribuir dicho gas a presi6n superior por una pluralidad de conectores (U1, U2, .., UN), que puedenconectarse a la misma cantidad de usuarios, en la que dichos medios de transmisión incluyen al menos unabomba (PoL) de presión de aceite, que se hace funcionar por el arbol de dicho motor (M), estando laestación caracterizada porque tanto un motor (MoL) hidraulico, alimentado por dicha bomba (PoL) y queacciona en rotaci6n el arbol de funcionamiento de dicho grupo (C) de compresión, como dispositivoselectricos entre los cuales un panel de instrumentos para gestionar y controlar el grupo (C) de compresión,y tambien caracterizada porque comprende un primer y un segundo entornos (Al, A2) diferenciados,completamente separados entre sí, en la que el motor (M), la bomba (PoL) de presión de aceite y dichosdispositivos electricos estan montados dentro del primer entorno (Al), mientras que el motor (MoL)hidraulico y el grupo (C) de compresión estan situados dentro del segundo entorno (A2).Station for supplying pressurized gas to tanks, in particular tanks installed in motor vehicles, of the type that includes a compression group (C), which is operated by means of transmission by a motor (M), whose suction inlet is connected to a distribution network (RG) of said low pressure gas, and whose distribution is functionally connected to a device (D) to distribute said gas at a higher pressure by a plurality of connectors (U1, U2, .., UN), which can be connected to the same number of users, in which said transmission means include at least one oil pressure pump (PoL), which is operated by the shaft of said engine (M), the station being characterized in that both a hydraulic motor (MoL), fed by said pump (PoL) and which rotates the operating shaft of said compression group (C), as electrical devices between which an instrument panel for managing and controlling the compression group (C), and also characterized in that it comprises a first and second differentiated environments (Al, A2), completely separated from each other, in which the engine (M), the oil pressure pump (PoL) and said electrical devices are mounted within the first environment (Al), while the hydraulic motor (MoL) and the compression group (C) are located within the second environment (A2).

Description

Estación para suministrar gas presurizado a depósitos, en particular depósitos montados en vehículos a motor Station for supplying pressurized gas to tanks, in particular tanks mounted on motor vehicles

Sector de la técnica Technical sector

La presente invención se refiere al campo técnico relacionado con estaciones para suministrar gas presurizado, por ejemplo metano, a depósitos montados en particular en vehículos a motor. The present invention relates to the technical field related to stations for supplying pressurized gas, for example methane, to tanks mounted in particular on motor vehicles.

Estado de la técnica State of the art

Las estaciones de tipo conocido incluyen habitualmente un motor eléctrico dirigido a hacer funcionar una unidad de compresión de múltiples etapas, que se alimenta por la red de metano a una presión de aproximadamente 8 a 10 bar, y suministra, a su vez, a una batería de depósitos conectados en paralelo. Cuando el gas presurizado se distribuye a depósitos de uno o más vehículos a motor, la batería actúa como dispositivo de compensación, lo que compensa posibles retardos en la activación del conjunto de motor -unidad de compresión. Stations of known type usually include an electric motor aimed at operating a multi-stage compression unit, which is fed by the methane network at a pressure of approximately 8 to 10 bar, and in turn supplies a battery of deposits connected in parallel. When the pressurized gas is distributed to tanks of one or more motor vehicles, the battery acts as a compensation device, which compensates for possible delays in the activation of the engine assembly - compression unit.

La solicitud de patente B02003A 000061, propiedad del mismo solicitante, se refiere a una estación para suministrar a depósitos de usuarios gas presurizado y resuelve algunos inconvenientes importantes de la técnica anterior. Incluye sustancialmente: una unidad eléctrica, alimentada por una línea eléctrica para la distribución de energía eléctrica, dirigida a suministrar en la salida una tensión eléctrica de frecuencia y valor eficaces variables, según las señales de control y mando emitidas por una unidad de mando y control, a la que está conectada; un motor eléctrico alimentado por la unidad eléctrica; una unidad de compresión, que se hace funcionar por el árbol del motor, y cuya entrada está conectada a una red de metano a baja presión; un depósito de referencia, conectado al suministro de la unidad de compresión; un dispositivo para distribuir el gas presurizado, conectado al depósito de referencia, y que tiene una pluralidad de conectores, o boquillas de distribución, que pueden conectarse a la misma cantidad de usuarios; un sensor para medir la presión dentro del depósito de referencia, conectado a la unidad central. La unidad central puede comparar un valor de referencia de presión seleccionado con el valor de presión medido por el sensor, y controlar la unidad eléctrica en relación con la diferencia entre los dos valores. Esto da como resultado la activación de la unidad de compresión, en la que los ciclos de trabajo en la unidad de tiempo dependen de la frecuencia y el valor eficaces de la potencia eléctrica del motor. Patent application B02003A 000061, owned by the same applicant, refers to a station for supplying pressurized gas to user tanks and resolves some important drawbacks of the prior art. It substantially includes: an electrical unit, powered by an electrical line for the distribution of electrical energy, aimed at supplying an electrical voltage of variable frequency and effective value at the output, according to the control and command signals emitted by a command and control unit , to which it is connected; an electric motor powered by the electric unit; a compression unit, which is operated by the motor shaft, and whose input is connected to a low pressure methane network; a reference tank, connected to the supply of the compression unit; a device for distributing the pressurized gas, connected to the reference tank, and having a plurality of connectors, or distribution nozzles, which can be connected to the same number of users; a sensor to measure the pressure inside the reference tank, connected to the central unit. The central unit can compare a selected pressure reference value with the pressure value measured by the sensor, and control the electrical unit in relation to the difference between the two values. This results in the activation of the compression unit, in which the work cycles in the time unit depend on the effective frequency and value of the electric power of the motor.

Objeto de la invención Object of the invention

Reglas y directrices fijadas por los reglamentos actuales en este asunto, nacionales y supranacionales, y en este caso particular referentes a los sistemas de distribución de metano para transporte, imponen una serie de medidas que deben adoptarse cuando se instalan aparatos eléctricos (motor, unidad central eléctrica, panel de instrumentos, etc.) en entornos con riesgo de explosión. Obviamente, el cumplimiento de estas reglas requiere enormes inversiones iniciales y periódicas para el mantenimiento y el control de las partes que se considera que están en riesgo. Por tanto, el objeto principal de la presente invención es proponer una estación para suministrar gas presurizado, en particular metano, a los depósitos de vehículos a motor, que permita mantener los aparatos o dispositivos eléctricos, tales como motores y el panel de instrumentos para gestionar y controlar el compresor y los dispositivos auxiliares, en entornos diferenciados, separados de los aparatos que actúan conjuntamente de manera directa en el transporte y la compresión del gas suministrado por la red de distribución, para permitir cumplir los reglamentos actuales y que sea innovadora, fiable y que pueda obtenerse con elementos económicos y fácilmente disponibles, con el mismo grado de seguridad con respecto a las soluciones conocidas. Rules and guidelines set by current regulations in this matter, national and supranational, and in this particular case concerning methane distribution systems for transport, impose a series of measures to be taken when installing electrical appliances (motor, central unit electrical, instrument panel, etc.) in explosive environments. Obviously, compliance with these rules requires huge initial and periodic investments for the maintenance and control of the parts that are considered to be at risk. Therefore, the main object of the present invention is to propose a station for supplying pressurized gas, in particular methane, to motor vehicle tanks, which allows the maintenance of electrical appliances or devices, such as motors and the instrument panel for managing and control the compressor and auxiliary devices, in differentiated environments, separate from the devices that act together directly in the transport and compression of the gas supplied by the distribution network, to allow compliance with current regulations and to be innovative, reliable and that can be obtained with economical and readily available elements, with the same degree of security with respect to known solutions.

La técnica anterior más próxima, el documento US6568911, da a conocer un circuito hidráulico y un circuito de compresión de gas natural, comprendiendo el primero un motor eléctrico y una bomba hidráulica, y comprendiendo el último dos pistones hidráulicos solidarios con dos cilindros, conectados a la entrada de depósitos por medio de mangos y acoplamientos de liberación rápida. The closest prior art, US6568911, discloses a hydraulic circuit and a natural gas compression circuit, the first comprising an electric motor and a hydraulic pump, and the latter comprising two hydraulic pistons integral with two cylinders, connected to deposit entry through handles and quick-release couplings.

Otro objeto de la presente invención es proponer una estación, cuyo coste total resultará ser relativamente bajo en cualquier caso, con respecto a las ventajas que van a obtenerse. Another object of the present invention is to propose a station, whose total cost will turn out to be relatively low in any case, with respect to the advantages to be obtained.

Los objetos anteriormente mencionados se obtienen según el contenido de las reivindicaciones. The aforementioned objects are obtained according to the content of the claims.

Descripción de las figuras Description of the figures

Los rasgos característicos de la invención, que no resultan de lo que acaba de mencionarse, se destacarán mejor a continuación, según el contenido de las reivindicaciones y con ayuda de las figuras adjuntas, en las que: The characteristic features of the invention, which do not result from what has just been mentioned, will be better highlighted below, according to the content of the claims and with the help of the attached figures, in which:

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la figura 1 es un diagrama de bloques parcial de la estación propuesta por la invención, que muestra los bloques que se consideran más significativos; Figure 1 is a partial block diagram of the station proposed by the invention, showing the blocks that are considered most significant;

2 2

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la figura 2 es un diagrama de bloques parcial de la estación propuesta por la invención, según una realización, que muestra los bloques que se consideran más significativos. Figure 2 is a partial block diagram of the station proposed by the invention, according to one embodiment, showing the blocks that are considered most significant.
Descripción detallada de la invención Detailed description of the invention

Con referencia a las figuras adjuntas, un motor (M) eléctrico está dirigido a accionar en rotación una bomba (POL) de presión de aceite, que está dirigida a alimentar a un motor (MOL) de presión de aceite a través de un circuito (1) hidráulico, véase la figura 1. El motor (MOL) de presión de aceite, a su vez, está conectado por medio del árbol relacionado a un grupo (C) para comprimir, por ejemplo, metano. With reference to the attached figures, an electric motor (M) is directed to drive in rotation an oil pressure pump (POL), which is directed to feed an oil pressure motor (MOL) through a circuit ( 1) hydraulic, see figure 1. The oil pressure engine (MOL), in turn, is connected by means of the shaft connected to a group (C) to compress, for example, methane.

De una manera conocida, la entrada del grupo (C) de compresión está conectada a una red (RG) de metano a baja presión, y su salida de suministro está funcionalmente conectada a un dispositivo (O) para suministrar el mismo gas a presión superior a través de una pluralidad de conectores o pistola de distribución, (U1, U2, .. , UN) que pueden conectarse a la misma cantidad de usuarios, es decir depósitos de vehículos a motor. In a known manner, the inlet of the compression group (C) is connected to a low pressure methane network (RG), and its supply outlet is functionally connected to a device (O) for supplying the same gas at higher pressure through a plurality of connectors or distribution gun, (U1, U2, .., UN) that can be connected to the same number of users, ie motor vehicle tanks.

El motor (M) eléctrico y la bomba (POL) de presión de aceite están montados dentro de un primer entorno (A1), indicado con línea discontinua, en el que también están situados, por ejemplo, el panel de instrumentos para gestionar y controlar el compresor y los dispositivos auxiliares, así como la unidad hidráulica, bomba de agua del circuito de refrigeración y un intercambiador de aire-agua relacionado (no mostrados, dado que se conocen). The electric motor (M) and the oil pressure pump (POL) are mounted within a first environment (A1), indicated by a broken line, in which the instrument panel for managing and controlling is also located, for example. the compressor and auxiliary devices, as well as the hydraulic unit, water pump of the cooling circuit and a related air-water exchanger (not shown, as they are known).

El motor (MOL) hidráulico y el grupo (C) de compresión como un todo están situados dentro de un segundo entorno (A2), igualmente indicado con línea discontinua, en el que también están situados amortiguadores de suministro (no mostrados dado que se conocen), un armario de medición, circuitos adicionales para refrigeración de aceite y metano, y la instrumentación y las partes de instrumentos eléctricas de gestión del compresor. Por consiguiente, se reducen al mínimo los aparatos eléctricos y los elementos eléctricos y electrónicos en el segundo entorno (A2). Además, el segundo entorno (A2) constituye, según los reglamentos actuales, el alojamiento del compresor y, por tanto, está contenido en un armario metálico, aprobado como sistema de seguridad de primer grado (no mostrado). The hydraulic motor (MOL) and the compression group (C) as a whole are located within a second environment (A2), also indicated with a broken line, in which supply dampers (not shown as they are known are also located) ), a measuring cabinet, additional circuits for oil and methane cooling, and the instrumentation and parts of compressor management electrical instruments. Consequently, electrical appliances and electrical and electronic elements are minimized in the second environment (A2). In addition, the second environment (A2) constitutes, according to current regulations, the compressor housing and, therefore, is contained in a metal cabinet, approved as a first-degree safety system (not shown).

Por tanto, los aparatos y dispositivos contenidos en el primer entorno (A1) están funcionalmente conectados a los contenidos en el segundo entorno (A2), con los que actúan conjuntamente para hacer que la estación de suministro propuesta funcione correctamente: por tanto, debido a la interposición funcional del circuito (1) hidráulico, en el que funcionan la bomba (POL) de presión de aceite y el motor (MOL) hidráulico, las partes que reciben energía (primer entorno (A1)) están completamente separadas de las zonas que contienen gas (segundo entorno (A2)). Ventajosamente, el segundo entorno (A2) resulta más compacto y se reduce la denominada "zona de peligro", y por consiguiente el primer entorno (A 1) sólo debe protegerse del clima, lo que puede lograrse de manera sencilla, por ejemplo, instalándolo bajo un techo. Therefore, the devices and devices contained in the first environment (A1) are functionally connected to those contained in the second environment (A2), with which they act together to make the proposed supply station work properly: therefore, due to the functional interposition of the hydraulic circuit (1), in which the oil pressure pump (POL) and the hydraulic motor (MOL) operate, the parts that receive energy (first environment (A1)) are completely separated from the areas that contain gas (second environment (A2)). Advantageously, the second environment (A2) is more compact and the so-called "danger zone" is reduced, and therefore the first environment (A 1) must only be protected from the weather, which can be achieved in a simple way, for example, by installing it under a roof.

Para mejorar la estación propuesta (véase la figura 2) puede conectarse un canal (2) de desviación en paralelo con el motor (MOL) de presión de aceite que está aguas arriba yaguas abajo del mismo, y puede conectarse funcionalmente un dispositivo (3) al canal (2) para ajustar la cantidad de fluido que va a transportarse al interior de este último (nada o una parte de la cantidad de fluido que circula dentro del circuito (1) hidráulico) y dirigido, de lo contrario, a alimentar el motor (MOL) de presión de aceite. Debido a esta innovación, es posible modular la potencia del motor (MOL) hidráulico según las necesidades de suministro en el tiempo, es decir, ajustar el número de revoluciones del compresor del grupo (C), según el número de usuarios conectados a las pistolas (U1, U2, .. , UN) de distribución. To improve the proposed station (see Figure 2), a bypass channel (2) can be connected in parallel with the oil pressure engine (MOL) upstream and downstream of it, and a device (3) can be functionally connected. to the channel (2) to adjust the amount of fluid to be transported into the latter (nothing or a part of the amount of fluid circulating within the hydraulic circuit (1)) and otherwise directed to feed the Engine (MOL) oil pressure. Due to this innovation, it is possible to modulate the power of the hydraulic motor (MOL) according to the needs of supply over time, that is, to adjust the number of revolutions of the group compressor (C), according to the number of users connected to the guns (U1, U2, .., UN) distribution.

Además, la configuración de la estación propuesta permite usar un motor de gas en vez del motor (M) eléctrico, respetando totalmente los reglamentos actuales, lo que permitiría ahorrar en el coste de la instalación de armario eléctrico. Además, la introducción de un generador de corriente eléctrica haría que la estación de suministro fuera autosuficiente, porque podría evitarse la conexión a la red de electricidad. In addition, the configuration of the proposed station allows to use a gas engine instead of the electric motor (M), fully respecting the current regulations, which would save on the cost of installing an electrical cabinet. In addition, the introduction of an electric current generator would make the supply station self-sufficient, because the connection to the electricity grid could be avoided.

Una ventaja de la presente invención se encuentra en el hecho de que se ha diseñado una estación para suministrar gas presurizado, en particular metano, a depósitos de vehículos a motor, que incluye dos entornos (A1, A2) diferenciados, en la que las partes que reciben energía están separadas de las zonas que contienen gas, debido a la interposición funcional del motor (M) eléctrico y el grupo (C) compresor de un circuito (1) hidráulico, en el que funcionan la bomba (POL) de presión de aceite y el motor (MOL) hidráulico. De esta manera, la zona de peligro es mucho más pequeña con respecto a las soluciones conocidas, limitándose sólo al segundo entorno (A2). Realmente, el motor (M) eléctrico y el panel de instrumentos están situados en el primer entorno (A1), en el que no se contiene ningún gas y que, según reglamentos actuales, puede protegerse simplemente del clima, por tanto, pueden ser del tipo más ampliamente extendido, sin requerir el grado de seguridad particular, que es obligatorio para los aparatos situados en las zonas de peligro. Por tanto, algunos elementos de la estación pueden encontrarse más fácilmente y a un coste menor. Por consiguiente, los costes de la primera instalación y del mantenimiento periódico de la estación y las considerables ventajas técnicas y funcionales que se obtienen, hacen que la presente invención sea fiable y particularmente atractiva desde los puntos de vista de la seguridad y la economía. An advantage of the present invention lies in the fact that a station has been designed to supply pressurized gas, in particular methane, to motor vehicle tanks, which includes two differentiated environments (A1, A2), in which the parts that receive energy are separated from the zones that contain gas, due to the functional interposition of the electric motor (M) and the compressor group (C) of a hydraulic circuit (1), in which the pressure pump (POL) of oil and hydraulic motor (MOL). In this way, the danger zone is much smaller with respect to known solutions, being limited only to the second environment (A2). Actually, the electric motor (M) and the instrument panel are located in the first environment (A1), in which no gas is contained and which, according to current regulations, can simply be protected from the weather, therefore, they can be more widely extended type, without requiring the particular degree of safety, which is mandatory for devices located in danger zones. Therefore, some elements of the station can be found more easily and at a lower cost. Therefore, the costs of the first installation and the periodic maintenance of the station and the considerable technical and functional advantages that are obtained, make the present invention reliable and particularly attractive from the viewpoints of safety and economy.

3 3

Claims (3)

REIVINDICACIONES 1. Estación para suministrar gas presurizado a depósitos, en particular depósitos instalados en vehículos a motor, del tipo que incluye un grupo (e) de compresión, que se hace funcionar mediante medios de 5 transmisión por un motor (M), cuya entrada de aspiración está conectada a una red (RG) de distribución de dicho gas a baja presión, y cuya distribución está funcionalmente conectada a un dispositivo (O) para distribuir dicho gas a presión superior por una pluralidad de conectores (U1, U2, .. , UN), que pueden conectarse a la misma cantidad de usuarios, en la que dichos medios de transmisión incluyen al menos una bomba (POL) de presión de aceite, que se hace funcionar por el árbol de dicho motor (M), estando la 10 estación caracterizada porque tanto un motor (MOL) hidráulico, alimentado por dicha bomba (POL) y que acciona en rotación el árbol de funcionamiento de dicho grupo (e) de compresión, como dispositivos eléctricos entre los cuales un panel de instrumentos para gestionar y controlar el grupo (e) de compresión, y también caracterizada porque comprende un primer y un segundo entornos (A1, A2) diferenciados, completamente separados entre sí, en la que el motor (M), la bomba (POL) de presión de aceite y dichos 1. Station for supplying pressurized gas to tanks, in particular tanks installed in motor vehicles, of the type that includes a compression group (e), which is operated by means of transmission by a motor (M), whose input of The suction is connected to a network (RG) of distribution of said gas at low pressure, and whose distribution is functionally connected to a device (O) for distributing said gas at higher pressure by a plurality of connectors (U1, U2, .., UN), which can be connected to the same number of users, in which said transmission means include at least one oil pressure pump (POL), which is operated by the shaft of said motor (M), the power being station characterized in that both a hydraulic motor (MOL), fed by said pump (POL) and which rotates the operating shaft of said compression group (e) in rotation, as electrical devices between which an instrument panel s to manage and control the compression group (e), and also characterized in that it comprises a first and second differentiated environments (A1, A2), completely separated from each other, in which the motor (M), the pump (POL) oil pressure and sayings 15 dispositivos eléctricos están montados dentro del primer entorno (A1), mientras que el motor (MOL) hidráulico y el grupo (e) de compresión están situados dentro del segundo entorno (A2). 15 electrical devices are mounted within the first environment (A1), while the hydraulic motor (MOL) and the compression group (e) are located within the second environment (A2). 2. Estación para suministrar gas presurizado a depósitos, en particular depósitos según la reivindicación 1, caracterizada porque el circuito (1) hidráulico que conecta dicha bomba (POL) de presión de aceite y motor 2. Station for supplying pressurized gas to tanks, in particular tanks according to claim 1, characterized in that the hydraulic circuit (1) connecting said oil and engine pressure pump (POL) 20 (MOL) hidráulico incluye un canal (2) de desviación, conectado en paralelo al mismo motor (MOL) y porque incluye un dispositivo (3), funcionalmente conectado a dicho canal (2) de desviación y que ajusta la cantidad de fluid que va a transportarse a través de este último, que de lo contrario alimentaría a dicho motor (MOL) de presión de aceite. 20 (MOL) hydraulic includes a bypass channel (2), connected in parallel to the same motor (MOL) and because it includes a device (3), functionally connected to said bypass channel (2) and adjusts the amount of fluid that it will be transported through the latter, which would otherwise feed said engine (MOL) oil pressure. 25 3. Estación para suministrar gas presurizado a depósitos, en particular depósitos según la reivindicación 1, caracterizada porque dicho motor (M) es un motor eléctrico. Station for supplying pressurized gas to tanks, in particular tanks according to claim 1, characterized in that said motor (M) is an electric motor. 4. Estación para suministrar gas presurizado a depósitos, en particular depósitos según la reivindicación 1, caracterizada porque dicho motor (M) se alimenta con gas. 4. Station for supplying pressurized gas to tanks, in particular tanks according to claim 1, characterized in that said motor (M) is fed with gas. 4 4
ES07104310T 2006-03-20 2007-03-16 Station for supplying pressurized gas to tanks, in particular tanks mounted on motor vehicles Active ES2388878T3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBO20060196 ITBO20060196A1 (en) 2006-03-20 2006-03-20 STATION FOR SUPPLYING TANKS WITH GAS IN PRESSURE, IN PARTICULAR OF TANKS INSTALLED ON VEHICLES.
ITBO20060196 2006-03-20

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ES2388878T3 true ES2388878T3 (en) 2012-10-19

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Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5454408A (en) * 1993-08-11 1995-10-03 Thermo Power Corporation Variable-volume storage and dispensing apparatus for compressed natural gas
US5351726A (en) * 1993-09-27 1994-10-04 Wagner & Brown, Ltd. System and method for compressing natural gas and for refueling motor vehicles
DE19650999C1 (en) * 1996-11-26 1998-06-04 Mannesmann Ag Tap installation method for filling mobile gas tank
DE19843669C1 (en) * 1998-09-23 2000-03-16 Hermann Josef Winter Tap installation for filling gas tank with methane has gas accumulator and emission device for feeding gas into tank
GB9912233D0 (en) * 1998-12-04 1999-07-28 British Gas Plc Hydrualically driven compressor
DE10018612C1 (en) * 2000-04-09 2001-12-06 Winter Hermann Josef System for filling gas tanks
US6792981B1 (en) * 2003-04-09 2004-09-21 Praxair Technology, Inc. Method and apparatus for filling a pressure vessel having application to vehicle fueling

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EP1837587A9 (en) 2008-02-27
EP1837587A2 (en) 2007-09-26
EP1837587B1 (en) 2012-06-06
ITBO20060196A1 (en) 2007-09-21
EP1837587A3 (en) 2011-04-27

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