Rupture disc having laser-formed reversal initiation and strain control elements

FIELD: machine engineering.

SUBSTANCE: reverse acting rupture disc (10) having a laser-formed reversal initiation element (16) provided in the disc projecting portion (12). The reversal initiation element comprises at least the first laser-exposed region (22) which has reduced thickness relative to the remaining projecting portion. A second laser-exposed region (24) provided within the first laser-exposed region. The second laser-exposed region has depth less than the depth of the first laser-exposed region. Attenuation line (40) can be formed in the projecting portion which acts to direct the reversal of raised portion towards specific region of the disc, such as line (56) of the opening groove.

EFFECT: control and ordering of the extension shape in reversal.

40 cl, 12 dwg

 



 

Same patents:

FIELD: oil and gas industry.

SUBSTANCE: explosion proof device with bursting disc comprises valve body, gate and bursting element. Lined cargo gate is connected by movable coupling to the valve body and covers opening in a body of the protected facility. In the upper cylindrical part of the valve body there is a unit fixing the bursting disc.

EFFECT: safe fuelling due to usage of explosion proof elements.

2 cl, 4 dwg

Protective device // 2553051

FIELD: mechanics.

SUBSTANCE: invention relates to the field of safe operation of hazardous articles which are surrounded by a hostile environment, in particular to safety sealing devices, namely to devices with a destructible element providing automatic actuation and opening sealed air channels under certain external influencing factors. The protective device comprises a movable element, retained by a stopper, linearly movable by the force influence of a preliminarily compressed spring. Mechanical properties of the stopper are changed under the influence of environmental factors. The movable element is made in the form of a spring-loaded plug 1 and is located inside the housing of the object 6. The stopper is made in the form of a latch 4 of a low-melting material applied to the coils of a compressed telescoping spring 3 prior to mounting it into the housing. The plug 1 is provided with sealing elements 2 and is made with the axial height smaller than the height of the spring 3 in a free state.

EFFECT: simplification of the design of the protective device, minimising the size of the protective device, reduction of the number of elements, increasing the reliability of the device actuation.

3 cl, 3 dwg

FIELD: machine building.

SUBSTANCE: explosion-proof device with a bursting disk includes a valve body, a gate, and a bursting element. A unit for the bursting disk fastening is installed in the upper cylindrical part of the valve body. The bursting disk is clamped between rings. The rings are connected to each other by two diametrically opposite plates and screws. One of the holes for the screws in the plate is of an oblong shape. In the lower cylindrical part of the valve body there arranged is a lined load gate covering a hole made in the body of the protected object. The said gate is connected in a movable manner to the valve body by means of at least three flexible links. The flexible links are made as elastic belts, one end of the belts is hinged to the valve body, and the other one is hinged to the load gate. Elastic belts are layered and have the alternation of elastic and damping layers. A vibration damping paste, for example of the VD-17 type, is used as the damping layers, and an elastomer is used as the elastic layers.

EFFECT: improving the efficiency and reliability of protection of process equipment against explosions in case of emergencies by increasing quick action and reliability of bursting elements actuation.

6 dwg

FIELD: machine building.

SUBSTANCE: group of inventions relating valves manufacturing and intended for use as the rupture disc in safety devices to protect HP systems. The rupture disc for the distributor with gas insulation contains thin domed plate that contains first flange part and first domed part at centre of the first flanged part, and rupture guiding plate containing the second flanged part overlaid on the first flanged part, and second domed part with number of slits created such that to determine the rupture shape such, that part of the first domed part will rupture as per specified shape when the internal pressure increases. The slits have arc-like shape. One single clit is connected with the another single slit adjacent to it by means of the rupture link. End sections of the clits at both edges of the multiple clits are provided with rupture limiting holes to create the articulated part of the second domed part. The design option of the rupture disc and distributor with gas insulation containing the rupture disc is available.

EFFECT: invention improves reliability and accuracy of activation of the rupture disc.

15 cl, 20 dwg

Blast valve // 2525988

FIELD: machine building.

SUBSTANCE: blast valve with a system of damping of the load gate comprises a valve body, heat-insulating and rupture elements, a lined load gate. A dynamic connection of the lined load gate with the valve body base is made in the form of three rods installed vertically in the peripheral part of the lined load gate. The rods are connected with the lower part in the valve body basis. The upper part thereof is provided with a damping device. Every one of three damping devices is attached to a horizontal jumper rigidly connected with the rod and implemented in the form of a round disk. A base of the damping device is attached to this disk by means of screws. The device is made of a rigid shock-absorbing material of "Agat" type. The base is connected with a bushing made of elastomer and features a central hole, through which the rod passes. The bushing features, at least, three holes coaxial with the rod accommodating resilient elements, e.g. cylindrical screw springs. The upper end face of these springs is connected by means of fasteners to the damping device base, while a lower end face is in a free state and protrudes beyond a lower bushing plane by a distance determined by the force developed by the shock explosion wave.

EFFECT: increasing efficiency of the process equipment protection against explosions by increasing the shock-absorption of the lined load gate.

3 dwg

FIELD: machine building.

SUBSTANCE: device for emergency shutdown of a pipeline comprises a casing 1, a valve 2, a valve seat 3 and a valve return mechanism. The casing is equipped by a supply pipe branch 4 and a discharging pipe branch 5 for the connection to supplying and discharging sections of the pipeline. The valve seat 3 is installed across the casing flow passage and the valve is coupled to the valve return mechanism by a stem 6. The valve is mounted on the side of the supplying pipe branch 4 and is fixed on the stem 6. The stem is installed in the casing guides in a movable way. The return mechanism includes a seal 7, an adjustable support 8, a safety device 9 and a supporting cup 10. The seal is fixed in the casing. The adjustable support is movably installed in the supporting cup 9 on the safety device 10 from hard soluble material. The safety device is set on the bottom of the supporting cup where holes for spilled liquid are provided. The supporting cup is set on the floor of the room being monitored. The casing 1 is made as a cylinder closed by covers 11, 12 with sealing rings 13 which are tightened by studs 14 and nuts 15.

EFFECT: higher reliability of a device.

5 cl, 4 dwg

FIELD: mechanical engineering.

SUBSTANCE: group of inventions relates to safety technology and is used as a device for relieving excess pressure for use in sanitary fields of application. The pressure relief device (12) comprises a bursting disk (30) and a supporting element (32). The bursting disk (30) includes a bursting area and a flange section. The supporting element (32) of the bursting disc (30) includes an annular inner bushing, an outer peripheral area, spaced radially from the inner bushing, and one or more connecting segments extending between the inner bushing and the outer peripheral area. Connecting segments restrict one or more embossed areas, located between the inner bushing and the outer peripheral area of the supporting element (32). There are structural versions of the supporting element and the bursting disc designs.

EFFECT: group of inventions is aimed at improvement of reliability of the pressure relief device operation.

22 cl, 11 dwg

FIELD: energy industry.

SUBSTANCE: safety valve of single action comprises a housing with a tear-off element mounted in it. The tear-off element is made as a stem with a neck in the middle part of it, and a notch. The notch is a stress riser on the neck. The diameter of the said neck is calculated for the actual tensile strength of the stem material. The stem comprises at its ends a male thread. With one threaded end the stem is screwed into the disc with delivery outlets, mounted in the housing by male adapter of the input. With another threaded end the stem is screwed into a threaded hole of the piston compacted in the housing. The radial holes are made in the wall of the housing, which are hermetically separated from the male adapter of the input by the piston seal.

EFFECT: creation of the safety valve of single action with a stable actuation pressure.

2 cl, 2 dwg

FIELD: machine building.

SUBSTANCE: latching mechanism is inserted into a housing of a hydrodynamic or hydraulic machine with working medium. The latching mechanism includes a latching mechanism body for installation on the housing, for example by screwing-in or insertion. The latching mechanism body has a feedthrough hole, into which a latching mechanism core is inserted. The latching mechanism core is directly connected to the latching mechanism body by means of a fuse element fusing at the specified temperature. Besides, the core can be connected to an intermediate element tightly installed in the latching mechanism body so that the feedthrough hole is sealed against working medium leakage. The core has a blind hole open to a working space so that working medium can flow into the latching mechanism core.

EFFECT: simplifying the structure and reducing the time required for a latching mechanism actuation.

7 cl, 1 dwg

FIELD: machine building.

SUBSTANCE: method to record the fact of hydraulic medium overpressure and recording of its maximum value is based on using dependence between compression force and elastic deformation of a spring. The recording of the overpressure fact is carried out by means of damage of the control membrane with a stem driven by a piston under action of hydraulic medium pressure force. The position of the stem after fixation of the fact certifies maximum pressure, which influenced all elements of the hydraulic system. There is a device that realises the above method for recording of the hydraulic medium overpressure.

EFFECT: development of a method and a device making it possible to record the fact of overpressure and its maximum value without participation of an operator.

2 cl, 2 dwg

Equalising valve // 2557150

FIELD: construction.

SUBSTANCE: group of inventions relates to valve building and is designed for equalisation of pressures in hydraulic networks of buildings, in which fluid medium flow rate is different and depends on a season. Equalising valve (1) with damper (2) has inlet (A) and outlet (B) and is installed after temperature-controlled element (3) connected to branch (4) of hydraulic network (5) with generally constant pressure (ΔP). The equalising valve is provided with measuring devices (7) of characteristic value of fluid medium circulating through equalising valve (1), position control devices (8) of damper (2) of equalising valve (1), data storage devices (11), in which internal and external parameters of equalising valve (1) are stored, and independent processing devices (10), which are designed so that automatic equalisation in branch (4) can be provided using magnitudes of characteristic value of fluid medium, which are obtained by means of measuring devices (7), control devices (8) and data stored in storage devices (11). There are methods for implementation of the above pressure equalisation operations.

EFFECT: group of inventions is aimed at easy operation, accessibility for any user, saving of time during installation and funds during the service life.

14 cl, 6 dwg

Safety valve unit // 2514574

FIELD: machine building.

SUBSTANCE: proposed unit comprises two safety valves, four-way feed valves, three full-flow (feed) valves, two changeover valves, high-pressure main lines and low-pressure main line. Third feed valve is connected parallel with sequence first and second full-flow valves. Inlet of four-way full-flow valve is connected to high-pressure main line. First outlet of four-way feed valve is connected to air cylinder of the first changeover device. Second outlet of four-way feed valve is connected to air cylinder of the second changeover device. Third outlet of four-way full-flow valve is connected to low-pressure main line. Low-pressure line is connected in between first and second feed valves. Inlets of thirst feed valve are connected to chambers under safety valves.

EFFECT: possibility of repair and replacement of one safety valve in operation.

4 cl, 2 dwg

FIELD: machine building.

SUBSTANCE: multi-stage regulator for fluid contains the first regulator for fluid that has a casing of cylindrical form, the first valve located in the casing and the first spring for setting the first regulated pressure in outlet of the first regulator. Note that the casing has a hole. The hole is hydraulically connected to the first valve. The second regulator for fluid contains casing part that has an inlet for fluid and threaded external surface for threaded interaction with the said hole. The second valve is located in the cavity of the second regulator for fluid near the said hole. Piston in operating condition is connected to the second valve. The spring is located between the second piston and casing part for setting the second regulated pressure in the outlet of the second regulator for fluid.

EFFECT: provision of desired level of performance characteristics.

7 cl, 4 dwg

FIELD: oil and gas production.

SUBSTANCE: valve comprises a body with the main channel, communicated on top with process pipes, and at the bottom - with well equipment, a piston installed in the main channel, spring-loaded upwards and closing communication of the main channel and the well equipment in the upper position. The body is equipped with an additional channel that communicates the main channel with used equipment and arranged as capable of closure with the piston in its lower position, and the main channel below the piston is communicated with the well space. The piston spring may be arranged as capable of control of its compression extent. The main channel may be equipped with a seat made as capable of tight interaction with the piston in its upper position.

EFFECT: invention provides for quick reduction of pressure in equipment down to hydrostatic one and reduction of time to prepare to the next cycle in case of cyclic operation.

3 cl, 3 dwg

FIELD: oil and gas industry.

SUBSTANCE: invention is intended for automatic cutout of fluid flow of gas well at emergency pressure increase in it and can be used during development and design of cutout valves installed in tubing strings. Cutout valve for gas well includes body with a seat, shutoff member, control unit of shutoff member, which includes spring-loaded stock with axial channel, which is installed in the body with possibility of axial movement and which forms together with the body an annular cavity for arrangement of control agent regulating the stock, sealing stop rings. Body and stock are composite. Support elements of the construction taking the force of stock spring and interacting with mating stop surfaces of the housing and stock are provided with identical mounting seats and with possibility of being moved from one end of the stock to the other one. In inlet part of axial stock channel there installed is replaceable shaped bushing; annular cavity is provided with possibility of simultaneous damping of channels supplying the control agent. Stock spring consists of several parts with possibility of changing its elastic force, by removing one or several parts at simultaneous damping of annular cavity.

EFFECT: simplifying valve service and repair.

2 cl, 3 dwg

FIELD: oil and gas industry.

SUBSTANCE: facility consists of main with ram preventer cut into section of main; and before preventer in the main there is assembled one or two connectors with valve installed on connector(s). Operating pressure is supplied from the main under the piston of the valve which compresses a calibrated spring of the piston rod and connects under-piston cavities of hydro-cylinders with a hydro-accumulator (pneumatic vessel of high pressure). Pressure of the hydro-accumulator opens rams of the preventer; and above-piston cavities of the hydro-cylinders communicate with open air. At destruction of the main (pressure after preventer drops both in the main and under the piston of the valve) the spring returns the rod of the valve into initial position, and cavities of hydro-cylinders communicate with hydro-accumulator and open air in a reverse order; rams of the preventer close its pass-through section. Access of product into the destructed bleeding main is shut off. The facility is installed before essential objects along main routs of oil and gas transporting such as railways and automobile roads, industrial and populated places, rivers, bridges etc, and also at heads of wells.

EFFECT: invention facilitates simplification of design and increases reliability of facility.

2 cl, 1 dwg

FIELD: engines and pumps.

SUBSTANCE: device is designed to be used in machine building for a dosed supply of aggressive, toxic, explosive and other fluid slam-containing and gaseous media. The valve consists of a body, a liquid intake chamber and a receiver filled with liquid and gas. The valve body and that of the receiver are rigidly coupled. Threaded holes are used for liquid intake and discharge. The liquid intake chamber is limited by a cover and an interchamber partition furnished with, at least, one hole through which the liquid supplied acts onto a seal rigidly attached to the movable axle. The said axle carries a rigidly fitted annular element with a ring-like part coupled with a flexible element acting, along the axle, onto a collar with a self-aligning curvilinear surfaces. The receiver body is furnished with pipelines incorporating valve gates to adjust liquid and air pressure.

EFFECT: expanded performances of the membrane chamber.

1 dwg

FIELD: ferrous metallurgy, namely blast furnace production.

SUBSTANCE: apparatus includes diaphragm having openings and valves; supply and exhaust gas conduits. Axial valves are used in apparatus. Said axial valves are mounted in exhaust gas conduits. To outlet of each opening of diaphragm coaxial perforated branch pipe is butt joined. Diameter of said branch pipe consists of 1.2, its length consists of 2.5 of diameter of respective valve.

EFFECT: reduced vibration degree, effective silencing in apparatus according to invention.

1 dwg

FIELD: microprocessed structures and methods for their manufacture.

SUBSTANCE: a method for manufacture of elastomeric structure is found, it includes formation of the first elastomeric layer from above the first microprocessed structure. The first microprocessed structure has the first shoulder, which forms the first recess stretching along the lower surface of the first elastomeric layer. Formation of the second elastomeric layer is accomplished from above the second microprocessed structure. The second microprocessed structure has the second shoulder, which forms the second recess stretching along the lower surface of the second elastomeric layer. The lower surface of the second elastomeric layer is connected to the upper surface of the first elastomeric layer so as to form a control channel in the second recess between the first and second elastomeric layers, and position the first elastomeric layer from above the planar base so as to form a channel in the first recess between the first elastomeric layer and the planar base. The methods of manufacture of the microprocessed structure are described.

EFFECT: enhanced reliability of the microprocessed structure.

36 cl, 49 dwg

The invention relates to lubricating equipment and can be used in the pulse lubricating system with intake pump periodic operation

FIELD: machine building.

SUBSTANCE: explosion-proof device with a bursting disk includes a valve body, a gate, and a bursting element. A unit for the bursting disk fastening is installed in the upper cylindrical part of the valve body. The bursting disk is clamped between rings. The rings are connected to each other by two diametrically opposite plates and screws. One of the holes for the screws in the plate is of an oblong shape. In the lower cylindrical part of the valve body there arranged is a lined load gate covering a hole made in the body of the protected object. The said gate is connected in a movable manner to the valve body by means of at least three flexible links. The flexible links are made as elastic belts, one end of the belts is hinged to the valve body, and the other one is hinged to the load gate. Elastic belts are layered and have the alternation of elastic and damping layers. A vibration damping paste, for example of the VD-17 type, is used as the damping layers, and an elastomer is used as the elastic layers.

EFFECT: improving the efficiency and reliability of protection of process equipment against explosions in case of emergencies by increasing quick action and reliability of bursting elements actuation.

6 dwg

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