ES1078622U

ES1078622U - Transition device between a polyethylene pipe and a cutting valve. (Machine-translation by Google Translate, not legally binding)

Info

Publication number: ES1078622U
Application number: ES201330099U
Authority: ES
Inventors: Esteban ROCHER LÓPEZ
Original assignee: Gas Natural SDG SA
Current assignee: Naturgy Energy Group SA
Priority date: 2013-01-31
Filing date: 2013-01-31
Publication date: 2013-02-15
Anticipated expiration: 2023-01-31
Also published as: CO6670074U1; ES1078622Y; AR090324A4; BR202013013840U2

Abstract

Transition device between a polyethylene tube and a cut-off valve, of the type used in gas distribution, which are mounted at the end of the corresponding tube (1) by means of a fitting (3) which at one end screw the valve (2), presented at the opposite end a pin that is inserted into the polyethylene tube, while outside it is placed a locking cap (5) and all is fixed by a nut (4) that thread in the body of the fitting (3), characterized in that it consists of a metal tube (6), which forms a sheath that holsters the polyethylene tube (1) as it passes through the concrete surface, from which a section that ends in a flange or flange (61), on which the nut (4) that threaded in the fitting (3) strikes it immobilizing it at the end of the metallic casing tube (6), while making the connection with the polyethylene tube (1). (Machine-translation by Google Translate, not legally binding)

Description

Dispositivo de transición entre un tubo de polietileno y una válvula de corte. Transition device between a polyethylene tube and a shut-off valve.

Object of the invention

La presente invención, como su propio título indica, se refiere a una transición del tubo de polietileno a válvula de corte, con anclaje en hormigón. En concreto se trata de una instalación de conducción de gas, con un tubo de polietileno, sobre el que se ha de montar válvula de corte, a continuación de que dicho tubo aflore a la superficie desde el subsuelo. The present invention, as its own title indicates, refers to a transition from the polyethylene tube to the cutting valve, with concrete anchor. In particular, it is a gas conduction installation, with a polyethylene tube, on which a shut-off valve is to be mounted, after said tube emerges from the subsoil.

Background of the invention

Este tipo de de uniones se emplean habitualmente en la distribución de gas, para dar salida a la conducción de gas desde el subsuelo hasta la superficie. Para ello, en el extremo del correspondiente tubo de polietileno se monta la válvula de corte mediante un racor que por un extremo atornilla en dicha válvula, mientras que en el extremo opuesto presenta una espiga que se introduce en el tubo de polietileno. Por fuera del tubo se coloca un casquillo de inmovilización, que se fija mediante una tuerca que rosca en el citado racor. This type of junction is usually used in the distribution of gas, to give out the conduction of gas from the subsoil to the surface. For this purpose, at the end of the corresponding polyethylene tube the cut-off valve is mounted by means of a fitting which, at one end, bolts into said valve, while at the opposite end it has a pin that is inserted into the polyethylene tube. Outside the tube an immobilization bushing is placed, which is fixed by means of a nut that threads into said fitting.

Actualmente, la transición del tubo en estas zonas no dispone de ningún tipo de anclaje solidario con el conjunto de la válvula y se realiza fijando directamente el tubo de polietileno a la válvula, con lo cual ésta tiene una movilidad inherente y por tanto el tubo está sujeto a posibles roturas o fugas en esta zona. Currently, the transition of the tube in these areas does not have any type of anchoring integral with the valve assembly and is carried out by directly fixing the polyethylene tube to the valve, so that it has an inherent mobility and therefore the tube is subject to possible breakage or leakage in this area.

Description of the invention

El dispositivo aquí preconizado resuelve favorablemente estos problemas, permitiendo la ejecución de una unión estable y firme de la válvula en un tubo de polietileno, a continuación que éste emerge de un muro o una placa de hormigón. Este dispositivo consiste en un tubo metálico que conforma una vaina que enfunda el tubo de polietileno, quedando dicho tubo metálico embebido en el hormigón durante el proceso de montaje, de forma tal que al menos un tramo del mismo aflora fuera del hormigón. Dicho tubo metálico presenta un reborde o valona que queda incluida en la tuerca que fija el tubo de polietileno, de forma que éste queda totalmente revestido en su paso por el hormigón, hasta su conexión con la válvula. The device recommended here solves these problems favorably, allowing the execution of a stable and firm connection of the valve in a polyethylene pipe, after which it emerges from a concrete wall or plate. This device consists of a metal tube that forms a sheath that covers the polyethylene tube, said metal tube being embedded in the concrete during the assembly process, such that at least one section thereof emerges out of the concrete. Said metal tube has a flange or wall that is included in the nut that fixes the polyethylene tube, so that it is fully covered in its passage through the concrete, until its connection with the valve.

El casquillo de inmovilización colocado por el exterior del tubo de polietileno, dentro de la tuerca de apriete que fija el tubo metálico al racor intermedio, presenta un doble cono con estriado interior que permite un cierre uniforme del mismo sobre el tubo de polietileno impidiendo que pueda desprenderse. The immobilization bushing placed on the outside of the polyethylene tube, inside the clamping nut that fixes the metal tube to the intermediate fitting, has a double cone with internal grooving that allows a uniform closure of the same on the polyethylene tube preventing it from being able to break off.

Description of the figures

Para complementar la descripción que se está realizando y con objeto de facilitar la comprensión de las características de la invención, se acompaña a la presente memoria descriptiva un juego de dibujos en los que, con carácter ilustrativo y no limitativo, se ha representado lo siguiente: To complement the description that is being made and in order to facilitate the understanding of the characteristics of the invention, a set of drawings is attached to the present specification in which, for illustrative and non-limiting purposes, the following has been represented:

La figura 1 muestra una vista en alzado de la conexión de una válvula (2) en un tubo de polietileno (1) utilizando este dispositivo de anclaje, en la que todos sus elementos están desplegados en posición de montaje. Figure 1 shows an elevation view of the connection of a valve (2) in a polyethylene tube (1) using this anchoring device, in which all its elements are deployed in the mounting position.

La figura 2 se corresponde con una vista en alzado de este dispositivo con los elementos acoplados en posición definitiva. Figure 2 corresponds to an elevation view of this device with the elements coupled in the final position.

Preferred Embodiment of the Invention

Como se puede observar en las figuras referenciadas se trata de efectuar una conexión de una válvula (2) en un tubo de polietileno (1), inmediatamente después de que éste haya traspasado una superficie de hormigón. As can be seen in the referenced figures, it is a question of making a connection of a valve (2) in a polyethylene tube (1), immediately after it has crossed a concrete surface.

Una conexión de este tipo se efectúa de forma convencional por medio de un racor (3), que define por un extremo una superficie roscada en la que acopla la propia válvula (2) y por el opuesto una espiga que se introduce en el interior del tubo polietileno (1). Un casquillo de inmovilización (5) aprieta el tubo (1) exteriormente contra dicha espiga, al ser presionado éste por medio de la tuerca de apriete (4) que rosca en la superficie exterior del racor (3). Como se ha indicado anteriormente, este acoplamiento es totalmente convencional y se viene ejecutando en la red de distribución de gas en varios países y desde hace años. A connection of this type is carried out in a conventional manner by means of a fitting (3), which defines at one end a threaded surface on which the valve itself (2) engages and on the opposite a pin that is inserted inside the polyethylene tube (1). An immobilization sleeve (5) presses the tube (1) externally against said pin, when it is pressed by means of the clamping nut (4) that threads on the outer surface of the fitting (3). As indicated above, this coupling is completely conventional and has been running in the gas distribution network in several countries and for years.

El objeto de la invención está constituido por un tubo metálico (6) que presenta una longitud suficiente como para traspasar la superficie de hormigón, en la que se inserta normalmente previo al fraguado del mismo, o efectuando un taladro posterior. Además dispone de un tramo que sobresale por fuera del hormigón que termina en un reborde o valona (61). El diámetro interior de este tubo (1) es equivalente al diámetro exterior del tubo de polietileno (1), de forma que éste desliza por el interior sin dificultad. La fijación de la válvula (2) se efectúa también en este caso por medio de la tuerca de apriete (4), que desliza por el tubo (6) hasta topar con la valona (61), de forma tal que al roscar en el racor (3), fija éste contra dicha valona, al tiempo que efectúa el acoplamiento del tubo de polietileno (1) en la espiga del racor (3) para lograr la conexión de la conducción de gas. El casquillo de inmovilización (5) presenta en este caso un doble cono con estriado interior que permite un cierre uniforme del mismo sobre el tubo de The object of the invention is constituted by a metal tube (6) that is of sufficient length to pass through the concrete surface, into which it is normally inserted prior to setting it, or by carrying out a subsequent drill. It also has a section that protrudes outside the concrete that ends in a flange or wall (61). The inside diameter of this tube (1) is equivalent to the outside diameter of the polyethylene tube (1), so that it slides inside without difficulty. The valve (2) is also fixed in this case by means of the clamping nut (4), which slides through the tube (6) until it meets the wall (61), so that when threading on the fitting (3), it is fixed against said wall, while coupling the polyethylene tube (1) in the pin of the fitting (3) to achieve the connection of the gas line. In this case, the immobilization bushing (5) has a double cone with internal grooving that allows a uniform closure of the same on the tube

5 polietileno impidiendo que pueda desprenderse. 5 polyethylene preventing it from detaching.

Este montaje resulta ser muy estable en lo que a la fijación de la válvula (2) se refiere, ya que se monta sobre un elementos metálico (el tubo (6)) que funciona como elemento estructural, impidiendo que dicha válvula se pueda mover en sentido lateral y que por tanto pueda romper o desconectarse accidentalmente de su acoplamiento en el This assembly turns out to be very stable as far as the fixing of the valve (2) is concerned, since it is mounted on a metallic element (the tube (6)) that functions as a structural element, preventing said valve from being able to move in lateral direction and therefore can accidentally break or disconnect from its coupling in the

10 tubo polietileno (1). 10 polyethylene tube (1).

Una vez descrita suficientemente la naturaleza de la invención, así como un ejemplo de realización preferente, se hace constar a los efectos oportunos que los materiales, forma, tamaño y disposición de los elementos descritos podrán ser modificados, siempre y cuando ello no suponga una alteración de las características esenciales de la Once the nature of the invention has been sufficiently described, as well as a preferred embodiment, it is stated for the appropriate purposes that the materials, shape, size and arrangement of the described elements may be modified, provided that this does not imply an alteration. of the essential characteristics of the

15 invención que se reivindican a continuación: 15 invention claimed below:

Claims

1.-Transition device between a polyethylene tube and shut-off valve, of the type used in gas distribution, which are mounted at the end of the corresponding tube (1) by means of a fitting (3) that by a 5 end screw the valve (2), presented at the opposite end a pin that is inserted into the polyethylene tube, while outside it is an immobilization bushing (5) and all this is fixed by a nut (4 ) that rock in the body of the fitting (3), characterized in that it consists of a metal tube (6), which forms a sheath that covers the polyethylene tube (1) in its passage through the concrete surface, of the which emerges a section that ends in a flange or wall (61), on which the nut (4) that threads in the fitting (3)

10 immobilizing it at the end of the metal cladding tube (6), while making the connection with the polyethylene tube (1)

2. Device according to claim 1, characterized in that between the polyethylene tube (1) and the nut (4) an immobilization bushing (5) is placed, which has a double cone, with internal grooving.