WO2012042301A1 - 180° angle valve with internal closure coupled to a shielded reducer, actuated by a crown wheel and pinion, controlled by an electric/hydraulic motor with pneutorque assistance - Google Patents

Abstract

A 180° angle valve with internal closure coupled to a shielded reducer, actuated by a crown wheel and pinion, controlled by an electric/hydraulic motor with pneutorque assistance, 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 45° relative to the centre and an inlet aligned with the centre, to which body a seat is externally coupled and receives a 45° adapter located opposite the outlet, 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 castle receives the coupling of a reducer comprising a main body formed by a box in which is arranged a crown wheel; the crown wheel is moved by a pinion attached to a control shaft of the reducer, actuated by an electric/hydraulic motor, a control wheel or a pneutorque device with an incorporated support in the front section thereof. The crown wheel is supported on a conical adjustment bearing, while the top section thereof is provided with a locking nut attached by screws that allow adjusting the centring bushing, which is centrally coupled to the crown wheel and provided in the bottom section thereof with an outer, conical adjustment bearing, and also receives the coupling of the longitudinal grinding shaft, at the end of which is arranged a grinding wheel, under which a locking nut is arranged. The control shaft of the reducer comprises a locking nut on the inner face of the box and is supported on horizontal adjustment bearings sealed by a bearing cover compressed by the locking nut and a counter-locking nut. The box has on the outside thereof a locking rod and a sealing cover, while the control shaft of the reducer is flanked by holes for coupling to the support, the latter being attached to the locking rod by a chain.

Description

 "180 ° ANGLE VALVE WITH INTERNAL CLOSURE COUPLED TO A SHIELD REDUCED THROUGH CROWN AND PINION CONTROLLED WITH ELECTRIC / HYDRAULIC MOTOR WITH SUPPORT FOR PNEUTORQUE SUPPORT".

 This patent relates to a "180 ° ANGLE VALVE WITH COUPLED INTERNAL CLOSURE. TO AN ELECTRIC / HYDRAULIC CONTROLLED DRIVEN BLOCKED REDUCER WITH SUPPORT FOR PNEUCTURE SUPPORT" 180 ° to provide better equipment maintenance and to prevent material from entering the bonnet, as well as to allow quick opening and quick closing of the valve through the gear unit that is controlled by an electric / hydraulic motor, or a or manually with total safety for the operator.

 The high pressure valves used in conductive piping, mainly of caustic mixture with high temperature alumina bauxite pulp, 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 found 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, besides the current valves allow that the material when they stop sieving in 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 of the valves from the gear unit when the electric motor fails and the need to use a tire, these gear units do not have a support for this equipment to be coupled, requiring the operator to promote the valve holding the tire with the arms until the valve is fully closed, this equipment has a high weight and its constructive arrangement does not allow a good grip, and this closing, depending on the case, can take hours, which It takes slow and laborious service and prevents the operator from performing another function, often requiring several workers for this service.

 We can also point out that the valves that have the inlet and outlet of the material positioned at 180 ° in their entirety are made of reduction which prevents a good flow of the material, besides allowing it to be deposited on the conductive chamber causing a quick abrasion. and consequent deterioration of the equipment.

Faced with this and others not mentioned drawbacks, the inventor developed the "180 ° ANGLE VALVE WITH INTERNAL CLOSURE COUPLED WITH A DRIVEN BLOCKED REDUCER THROUGH ELECTRIC MOTOR CONTROLLED / PINION WITH SUPPORT FOR MAIN SUPPORT body" formed from a valve, it is constituted by a single fused receiving body that internally projects a 45 ° outlet communicating chamber with respect to the center and inlet is aligned with the center, where externally a seat is coupled, which receives the attachment of a 45 ° adapter positioned opposite the outlet, while internally said chamber is provided with a closing seat and chrome grinding, it is fixed to a longitudinal grinding axis which it flows through the connection hole disposed at the opposite end of the outlet, and the connection hole externally has its diameter abruptly enlarged forming a conditioning cavity for packing a square rubber ring, above which are compressed gaskets through a prime It is packed inside a bonnet which is coupled to the collar of the receiving body and fixed by bolts, the bonnet being externally provided with a numerical scale with a marker pointer below which a tilting inspection door can be found. a retainer internally disposed in said bonnet which is coupled to a reducer consisting of a main body formed from a box that houses a crown inside, it is driven by a pinion pinned to a gearbox drive shaft driven by an electric / water motor, an operating handwheel or a tire that in section The front part incorporates a support, said crown being supported by a tapered adjusting bearing, while its upper section holds a locking nut fixed by screws that allow the adjustment of the centering bushing, it is centrally coupled to said crown, bushing that holds externally in its lower section a tapered thrust bearing is further coupled to the longitudinal grinding axis whose end receives a grinding handwheel below which a locking nut occurs, said reducer drive shaft on the inner face of the housing holds a lock nut and is supported by horizontal adjusting bearings, these sealed through of a bearing cover compressed by a lock nut and lock nut, said housing externally protecting a locking rod and a sealing cap, while the gearbox drive shaft is flanked by holes for coupling the support bracket, which is fixed through chain rod of braking.

 To give 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 driven by an electric / hydraulic motor.

 Figure 2 shows a cross-sectional view of the pneumatic driven valve.

 Figure 3 shows a sectional view of the valve operated by a handwheel.

 Figure 4 shows a side view of the valve.

 Figure 5 shows a front view of the valve.

As the drawings and their details show, we can see that the "180 ° ANGLE CLOSED VALVE COUPLED COUPLED WITH A BLOCKED REDUCER DRIVED THROUGH ELECTRIC / HYDRAULIC MOTOR CONTROLLED WITH SUPPORT FOR A PNEUCTURAL SUPPORTED BODY" (1) formed from a valve (1), consists of a single fused receiving body (3) which internally projects a communicating chamber (4) with outlet (5) positioned at 45 ° to the center and inlet ( 6) it is aligned to the center, where an external seat (7) is coupled, which receives the fixation of a 45 ° adapter (50) positioned opposite the outlet (5), while internally said chamber (4) is provided with a chrome locking and grinding counter-seat (8), it is fixed to a longitudinal grinding axis ( 9) sliding through the bore (10) disposed at the opposite end of the outlet (6), the bore (10) externally having its diameter abruptly enlarged forming a concave cavity (11) for packing a ring of square rubber (12), above which gaskets (13) are compressed through a gasket (14), it is packed inside a bonnet (15) which is coupled to the collar (16) of the receiving body (3) and fixed by bolts (17), the bonnet (15) being externally provided with a numerical scale (18) with marker pointer (19) below which a tilt inspection door (20) is aligned with a retainer (21) internally disposed in said castle (15) which which is coupled to a gear unit consisting of a main body (22) formed from a housing (23) which houses inside (24) a crown (25), which is driven by a pinion (26) fixed to an axle gearbox (27) driven by an electric / hydraulic motor (28), an operating handwheel (29) or a pneumaque (30) which incorporates a support (32) in the front section (31), said crown (25) is supported by a tapered adjusting bearing (33), while its upper section holds a locking nut (34) fixed by screws (35) allowing adjustment of the centering bushing (36), it is centrally coupled in said crown (25), bushing (36) which externally holds in its lower section (37) a tapered bearing (38) and further receives the coupling of the longitudinal grinding axis (9) whose end receives a grinding wheel ( 39) below which there is a locking nut (40), said reducer drive shaft (27) on the inner face of the housing (23) has a locking nut (41) and is supported by horizontal adjustment bearings (42), which are sealed by means of a bearing cover (43) compressed by lock nut (41) and lock nut (44), said housing (23) externally protecting a locking rod (45) and a sealing cap (46) as camshaft The gear unit (27) is flanked by holes for coupling the support bracket (47), which is fixed by a chain (48) locking rod (45).

Based on what is described and illustrated, it is clear that the "180 ° ANGLE CLUTCH VALVE COUPLED TO A BLOCKED REDUCER DRIVED THROUGH ELECTRIC / HYDRAULIC CONTROLLED PINION WITH SUPPORT FOR PNEUTORQUE SUPPORT" a single receiver body cast at 45 ° output, while the inlet is center aligned but receives an adapter that positions it at 45 ° opposite the outlet, thus forming a 180 ° angle between the inlet and outlet without any reduction which allows constant material flow, preventing it from accumulating in the chamber, preventing precipitated valve abrasion extending equipment life, and a revolutionary bonnet system that internally incorporates a retainer housed below the gaskets that maintains shaft concentricity longitudinal grinding surface, as well as preventing the passage of material from the receiving body Thus, the operator can work safely as the packing compartment is reached through the inspection door and there is no need to disassemble the equipment for exchange. It should also be noted that the seat and back seat are made of chrome steel CR 40 and induction hardened, this treatment allows them to be reused and tempered again. 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 it is open and over the number zero that it is closed, This practice provides greater safety in equipment maintenance.

 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 to be handled after maintenance without any change.

 All this combined with a gear unit specifically designed to provide better valve clearance performance through a drive that comes in three different forms, namely: via an electric / hydraulic motor, a pneumatic actuator through compressed air or manually through of a steering wheel used in the absence of electricity.

 The gear unit has a bearing arranged in the lower section of the bushing which allows a better turning and perfect grinding of the valve and prevents the bushing from touching the bonnet, while the upper bearing prevents it from being displaced from the main shaft and extends the service life of the equipment. It has a vertical locking nut that allows its adjustment in relation to the crown that together with the upper bearing prevents its displacement of the center of rotation.

We can also highlight that the use of horizontal adjustment bearings that support the drive shaft of the gear unit prevent its eccentricity increasing the smoothness of the rotation movement.

 Another great advantage found in the equipment is related to the tire support bracket, because the inclusion of this device allows it to work without the need to be supported by the operator, allowing after the service performed to be removed and the gearbox housing itself is stuck. through current, this avoids accidents and unnecessary operator effort that is released for other activities.

 It is also worth remembering that the lock nut activation 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.

 The gear unit now claimed has an innovative layout in its general aspect, because in addition to the advantages described above it also has a fully shielded gearbox that prevents accidents, since it is innovative and hitherto not fully understood in the state of the art. within the criteria that define the invention patent. The following are their claims.

Claims

CLAIM "180 ° ANGLE VALVE WITH INTERNAL CLOSURE COUPLED TO A REDUCER. SHIELD DRIVED THROUGH CROWN AND HYDRAULIC MOTOR CONTROL WITH PNEUTORQUE SUPPORT SUPPORT" characterized by a main body. (I) formed from a valve (2), it is constituted by a unique single receiving body (3) which internally projects a communicating chamber (4) with outlet (5) positioned at 45 ° to the center and inlet (6) ) is aligned to the center, where an external seat (7) is coupled, which receives the attachment of a 45 ° adapter (50) positioned opposite the outlet (5), while internally said chamber (4) is provided of a chrome closing and grinding counter-seat (8) is fixed to a longitudinal grinding axis (9) which slides through the connecting hole (10) disposed at the opposite end of the outlet (6), the The connection (10) externally has its diameter abruptly enlarged forming a conditioning cavity (11) for packing a square rubber ring (12), above which there are gaskets (13) compressed by a press gasket (14), this one packed inside a castle (15) which is coupled 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 door is located. inspection tipper (20) is aligned with a retainer (21) internally disposed in said bonnet (15) which is coupled to a reducer consisting of a main body (22) formed from a housing (23) that holds in inside (24) a crown (25) is driven by a pinion (26) sanded to a drive shaft (27) driven by a. electric / hydraulic motor (28), an operating handwheel (29) or a pneumaque (30) which in the front section (31) incorporates a support (32), said crown (25) being supported by a tapered adjustment bearing (33) ), while its upper section holds a locking nut (34) fixed by bolts (35) allowing adjustment of the centering bushing (36), it is centrally coupled to said crown (25), bushing (36) which externally holds in place. its lower section (37) is a tapered roller bearing (38) and further receives coupling of the grinding longitudinal axis (9) whose end receives a grinding wheel (39) below which a lock nut (40) is provided, said reducer camshaft (27) being no. housing inner face (23) holds a lock nut (41) and is supported by horizontal adjusting bearings (42), which are sealed by a bearing cap (43) compressed by lock nut (41) and counter lock nut ( 44) wherein said housing (23) externally protects a locking rod (45) and a sealing cap (46) while the drive shaft of the reducer (27) is flanked by holes for coupling the support bracket (47), it is sanded by chain (48) locking rod (45).