WO2006081639A1

WO2006081639A1 - Pressure controller

Info

Publication number: WO2006081639A1
Application number: PCT/BR2005/000063
Authority: WO
Inventors: Rodrigo Alves Bernardes
Original assignee: Savvy Offshore Engenharia & Comércio Ltda.
Priority date: 2005-02-02
Filing date: 2005-04-26
Publication date: 2006-08-10
Also published as: BRPI0501085A

Abstract

Between inlet port ( A ) and outlet port ( B ) of the pressure controller an opening piston (3) and a closing piston (2) are mounted. Opening piston (3) constitutes an overflow valve and is precharged in closing direction by spring (8). Closing piston (2) constitutes a pressure limiting device and is precharged in opening direction by spring (7). The figure shows opening piston (3) in closed state, prohibiting flow from port (A) to port (B). Closing piston (2) is shown in open state. If pressure at the inlet port (A) lies above an opening pressure (minimal pressure), the closing force of spring (8) is overvome and piston (3) opens, hydraulic or pneumatic medium can flow from port (A) over throttle (6) and pistons (3, 2) to port (B). If pressure at inlet port (A) further increases piston (2) is pushed up into its closed position, prohibiting flow from port (A) to port (B).

Description

Description of the Invention for

PRESSURE CONTROLLER

Tecnical Field

The innovation proposed describe an apparatus compound by a set of pressure selector valves , distributed in manner to permit the actuation of various pneumatic and hydraulic lines, through of a unique pressurizing line, to be using in the principal industrial segments , like as petrol extraction, petrochemical , metal mechanics , naval , among others .

Background of the Invention

Now a days is used complex control screens with various directional valves and umbilical to pressurizing and independent actuation of circuits that will be use of multiple functions .

The actuation system without umbilical will be titled the obj ect to the present invention, permits that one circuit be operate, using a unique pressurizing line and also permitting the multiplicity of this through the classes of different pressures . This discards the use of complex equipments and resources to operating of pneumatic / hydraulic equipments . Summary of the Invention

The apparatus obj ect of the present invention consists of a hydraulic system, compound of 2 or more pressure selector valves, that functioning with varied pressures , permitting thus , the operation of pneumatics and hydraulics equipments , utilizing a unique pressurizing line, in other words, the actuation system without umbilical is compound to a circuit developed to permit the pneumatic / hydraulic actuation of various functions, making use of a unique feedstock line of pressure . Detailed Description of Invention

The present invention describes a control and operation apparatus for pneumatics and hydraulics equipments, with distinct functions or not, simultaneous actioned or not, and through a unique pressurizing line .

The apparatus represented in diagram showed in figure 1 presents a circuit composed by a principal pressurizing line LP, might the same present or not a blockage valve VB and various distribution lines LD with pressure selectors valve VSPl , VSP2, VSP3, VSP4, VSP5, VSP5, VSP6, VSP7 and VSP8, whose quantity may varies, according with the number of functions that whether wishes operate, to permit the actuation of pneumatic and hydraulics equipments through the classes of various pressures and quick exhausted valves VE, that permits the drain of backpressure to out system or receiver .

The pressure selector valve VSP was developed to workability the pressurizing of a pneumatic or hydraulic line, through of a pre-determinate pressure and permit the blockade from this, when will be besides specified, being composed conform showed in figure 2, by a body ( 1) , a flux regulator ( 6) that warehouse a opening piston ( 3) pre- charged by plate springs or helicoidally spring ( 8 ) preferably be using plate springs and a closing piston (2 ) pre-charged by helicoidally spring (7 ) . The opening pistons ( 3 ) and closing (2 ) are warehoused on body ( 1 ) through a tensioned screw (4 ) and tensioned screw ( 5) .

The opening piston (3) is pre-charged by a set of plate springs or helicoidally spring ( 8 ) , which has lower resistance in helicoidally spring (7 ) . When the portico A of the pressure selector valve VSP is pressurized with pressure higher under resistance of plate and helicoidally spring ( 8 ) , the opening piston ( 3) is out displaced, permitting the communication of flux

The closing piston (2 ) is pre-charged by a helicoidally spring ( 7 ) , that possesses high resistance in plate spring or helicoidally spring ( 8 ) , When the portico A of the valve is pressurized with pressure higher under resistance of plate and helicoidally spring ( 7 ) , the closing piston (2 ) is out displaced, blockading the flux communication through the selector valve of pressure, obstructing that the same, withdraw by the portico B . The pressure selector valve possesses a charge regulator ( 6) , that create a lost of charge on flux that is ordered to the opening piston ( 3) . This permits that the closing piston

(2 ) blockades the selector valve of pressure before the displacement of the opening piston ( 3 ) . The pressure selector valve VSP was developed to permit diverse configurations of opening and closing of the pneumatic or hydraulic line . This is possible through the change of charge of resistance of springs (7 ) and ( 8 ) that creates pre-charge of opening and closing . The variance of charge of resistance of springs (7 ) and ( 8 ) permits the creation of diverse pressure selector valves , with range of closing and opening diverse, to permit the multiplicity of the unigue pneumatic or hydraulic line of pressurizing .

The quick exhausted valve permits the communication of flux by a line of a pneumatic or hydraulic circuit in a unique direction . When the flux pass in an opposite direction, the quick exhausted valve direction the pressure for out the system. In the system of pneumatic and hydraulic equipments operation, the quick exhausted valve permits the communication of flux to pressurizing of equipments and the direction of backpressure to out circuit or receiver

The configuration presented would not be considered with limited in the purpose of the present invention, whereas the same could present modifications in the number of pressure selector valves, depends of number of functions that be wished operate, and this by your turn would have variations in its opening and closing system and respective work pressures, according to operational necessities .

The system of pneumatic and hydraulic equipment operation was developed to be using in all of industrial segments, like as petrol extraction, petrochemical, metal mechanic, naval, among others .

Claims

1- "SYSTEM OF PNEUMATIC AND HYDRAULIC EQUIPMENTS OPERATION" , characterized by a circuit, conform showed in figure 1 , compound by a principal line of pressurizing LP, should be the same presents or not a blockage valve VB and various selectors valves of pressure VSP and exhausting valves VE .

2- "SYSTEM OF PNEUMATIC AND HYDRAULIC EQUIPMENTS OPERATION" , characterized by using of various selectors valves of pressure VSP, compounds conform showed in figure 2 , by a body ( 1 ) , that warehouse a flux regulator ( 6) , a opening piston ( 3 ) pre-charged by plate springs or helicoidally spring ( 8 ) and a closing piston (2 ) pre- charged by helicoidally spring ( 7 ) . The opening pistons ( 3 ) and closing (2 ) are warehoused on body ( 1 ) through a tensioned screw ( 4 ) and tensioned screw ( 5 ) .

3- "SYSTEM OF PNEUMATIC AND HYDRAULIC EQUIPMENTS OPERATION" according to the claim 2, characterized by using of various pressure selector valves VSP, using preferably plate springs ( 8 ) .

4- "SYSTEM OF PNEUMATIC AND HYDRAULIC EQUIPMENTS OPERATION" according to the claim 2, characterized by pressure selector valves with several configurations of opening and closing of the pneumatic or hydraulic line .