WO2012046102A1

WO2012046102A1 - 90° angle valve with internal/external closure and manual actuation

Info

Publication number: WO2012046102A1
Application number: PCT/IB2010/054512
Authority: WO
Inventors: Antonio Herera Filho
Original assignee: Bray International, Inc.
Priority date: 2010-10-06
Filing date: 2010-10-06
Publication date: 2012-04-12

Abstract

A 90° angle valve with internal/external closure and manual actuation comprises a main body formed by a valve with a single cast receiving body which projects internally, forming a communicating chamber with an outlet positioned at an angle of 90° relative to the centre, and with an inlet aligned with the centre, to which body a seat is externally coupled, while internally the chamber has a chromium closing and grinding counter-seat attached to a longitudinal grinding shaft sliding through a connecting hole that is arranged at the other end of the outlet and has a diameter that abruptly increases on the outside, forming a socket accepting a square rubber ring, above which is located packing pressed into a box coupled to the collar of the receiving body, attached by screws and located inside a castle. The castle has on its outside a numerical scale and a pointer, below which there is an inspection port aligned with a retainer arranged inside the castle. The side of the retainer opposite the valve has a bushing accepting the longitudinal grinding control shaft, which is attached to an actuation handle formed by transmission rods arranged equidistantly at 120°from each other, including at the top a protection nut, and the actuation handle is locked by a locking nut, while the longitudinal grinding control shaft arranged at the end opposite the counter-seat has a control wheel.

Description

"90 ° ANGLE VALVE WITH MANUALLY OPERATED INTERNAL / EXTERNAL CLOSING".

This patent relates to a "MANUALLY DRIVEN IN / EXTERNAL CLOSED 90 ° ANGLE VALVE", which has been developed to provide better equipment maintenance through its manual opening and closing system where the actuating handle It is made up of 120 ° equidistant shanks allowing a perfect rotation of the longitudinal grinding camshaft.

The high pressure valves used in conductive piping, mainly of caustic mixture of lime and bauxite, with high temperature for the extraction of alumina, are totally free of protective shielding, which has caused many accidents with the operators due to leakage of liquid contained in the pipeline or cleaning products when repairs are required.

Another drawback encountered in these valves is related to their system of gaskets used between the valve body, as they do not prevent the displacement of the main shaft causing a very large eccentricity between the reducer and valve, in addition to the current valves allow the material when stopping the valves. penetrate the bonnet damaging this part of the pump that does not have a grinder.

Another point that should be highlighted is related to the closing and opening of the valves that is performed through a handle arranged below the steering wheel, it happens that their profiles are exactly identical, this configuration makes it difficult to actuate the handle, because as the operator promotes its operation. rotation through beaters invariably such valves line up causing accidents with the operator's hands.

In view of this and other unspecified drawbacks, the inventor has developed the "MANUALLY DRIVEN INTERNAL / EXTERNAL CLOSURE 90 ° VALVE" comprised of a main body formed from a valve, which comprises a receiving body that internally projects a communicating chamber with outlet positioned at 90 ° to the center and center-aligned inlet, where a seat is externally coupled, while internally it is provided with a chrome material closing and grinding counter seat, it is fixed to a longitudinal grinding camshaft. which slides through the connecting hole disposed at the opposite end of the outlet, and the connecting hole externally has its diameter abruptly increased forming a conditioning cavity for packing a square rubber ring, above which are compressed gaskets through a press gasket, it is packed inside a castle that is coupled n the collar of the receiving body is screwed through, the bonnet being externally provided with a marker pointer numerical scale below which a tilt inspection port is aligned with a retainer internally disposed in said bonnet whose opposite end to the valve. incorporates a bushing that holds said longitudinal grinding camshaft, which is fixed to a drive handle formed by 120 ° equidistant driving rods which incorporates from above a lock nut secured by screws, the drive handle being locked. locking nut, while the longitudinal grinding camshaft at the opposite end of the counter-seat holds a steering wheel. In order to obtain a perfect understanding of what has been developed, illustrative drawings are attached to which numerical references will be made together with a detailed description where:

Figure 1 shows a sectional view of the valve with internal closure.

Figure 2 shows a side view of the internally closed valve.

Figure 3 shows a sectional view of the valve with external closure.

Figure 4 shows a side view of the valve with external closure.

As can be seen from the drawings and their details, we can see that the "MANUALLY DRIVEN INTERNAL / EXTERNAL CLOSURE 90 ° VALVE" characterized by a main body (1) formed from a valve (2), which consists of a body receiver (3) which internally projects a communicating chamber (4) with outlet (5) positioned at 90 ° to the center and center-aligned inlet (6), where a seat (7) is externally coupled while internally provided of a chrome-plated closing and grinding counter-seat (8) is attached to a longitudinal grinding cam (9) which slides through the connecting hole (10) at the opposite end of the outlet (6), whereby the connecting hole (10) externally has its diameter abruptly enlarged forming a conditioning cavity (11) for packing a square rubber ring (12), above which there will be compressed gaskets (13) through a press gasket ( 14th ) is packed in inside a bonnet (15) which is coupled to the collar (16) of the receiving body (3) and secured by screws (17), the bonnet (15) being externally provided with a numerical scale (18) with marker pointer (19) ) below which a tilt inspection door (20) is located, is aligned with a retainer (21) internally disposed in said bonnet (15) whose opposite end to the valve (2) incorporates a bushing (22) that holds said longitudinal grinding camshaft (9), which is fixed to a drive handle (23) formed by 120 ° equidistant driving rods (24), which incorporates a protective nut (25) fixed by screws (25) 26), the drive handle (23) being locked by a lock nut (27), while the longitudinal grinding cam (9) at the opposite end to the counter-seat (8) has a steering wheel (28).

Based on the foregoing and illustrated, it is apparent that the "90 ° MANUALLY DRIVEN INTERNAL / EXTERNAL CLOSURE VALVE" the valve in question features a revolutionary bonnet system that internally incorporates a retainer housed below the gaskets that maintains the concentricity of the longitudinal grinding axis, as well as preventing the passage of material from the receiving body to the inside of the bonnet, so the operator can work safely once the packing compartment is reached through the inspection door with no need to disassemble the equipment to exchange them.

Entering a scale enables the operator to know with certainty whether the valve is open or closed as the pointer positioned over a high number indicates that the valve is open and over. If the number zero is closed, this practice provides greater safety when maintaining the equipment.

Another important factor is the bonnet shield and the lubrication of the grinding longitudinal axis that prevent products from accumulating inside, which allows the shaft handling after maintenance without any change.

All this combined with a manually operated opening and closing system via a handwheel and a drive handle that features a new arrangement where the driving rods are arranged equidistantly at 120 °, allowing them to rotate through beaters facilitating drive without causing accidents due to its configuration that does not allow alignment with the steering wheel.

Another great advantage found in the equipment is related to the seat and counter seat, which are made of chrome steel CR 40 and induction hardened, this treatment allows them to be reused and tempered again without losing their mechanical characteristics, and also against seat positioned inside the chamber so that it does not obstruct the passage of material.

Vale also recalled that the actuation of the lock nut allows the longitudinal axis to turn crazy, facilitating the internal manual grinding of the valve to remove the embedded material inside and, consequently, reducing the physical effort of the operator, because it is innovative and hitherto not understood in the state of the art which perfectly fits the criteria that define the invention patent. The following are their claims.

Claims

CLAIM

"90 ° ANGLE VALVE WITH INTERNAL / EXTERNAL CLOSED AC ION ADA MANUALLY" characterized by a main body (1) formed from a valve (2), consisting of a receiving body (3) which internally projects a communicating chamber ( 4) with outlet (5) positioned at 90 ° to the center and center-aligned inlet (6), where a seat (7) is externally coupled, while internally it is provided with a closing and grinding counter seat (8) of chrome material, it is fixed to a longitudinal grinding camshaft (9) which slides through the connecting hole (10) disposed at the opposite end of the outlet (6), and the connecting forum (10) externally has its diameter abruptly enlarged to form a packing cavity (11) for packing a square rubber ring (12), above which gaskets (13) are compressed through a press packing (14), it is packed inside a bonnet ( 15) which is coupled on the collar (16) of the receiving body (3) and fixed by screws (17), the bonnet (15) being externally provided with a numerical scale (18) with marker pointer (19) below which a tilting door is provided. The inspection tube (20) is aligned with a retainer (21) internally disposed in said bonnet (15) whose opposite end to the valve (2) incorporates a bushing (22) that holds said longitudinal grinding camshaft (9), it is fixed to a drive handle (23) formed by 120 ° equidistant drive rods (24), which incorporates a protective nut (25) top-mounted by bolts (26), the drive handle (23) ) locked by a locking nut (27), while the longitudinal grinding camshaft (9) at the opposite end to the counter-seat (8) holds a steering wheel (28).