Kochetov explosion-proof valve

FIELD: machine building.

SUBSTANCE: invention relates to machine building and intended for process equipment explosion protection. Explosion-proof valve with load gate damping system comprises valve body, heat insulating and rupture elements, lined load gate. Lined load gate movable connection with valve body base is made in form of three rods vertically installed in lined load gate peripheral part holes. By lower part rods are fixed in valve body base. In upper part they have damping device. Each of three damping devices is fixed on horizontal bridge, rigidly connected with rod and made in form of round disc. On this disc damping device base is fixed by means of screws. Latter is made from rigid vibration damping material of “Agat” type. Base is connected to bushing from elastomer and has central hole, through which rod is passing. Bushing has, at least, three holes, which are coaxial with rod, in which resilient elements are arranged, for example, cylindrical helical springs. Said springs upper end is connected to damping device base by means of fastening elements, and lower end is in free state and protrudes beyond bushing bottom plane at distance defined by force, generated by impact blast wave. To bushing end surface, on arranged in holes resilient elements free end side, coaxial with rod, safety element made in form of conical surface is rigidly connected. Cone lower base rests against bushing, and top is made with hole, into which enters rod.

EFFECT: invention is aimed at higher efficiency of process equipment protection against explosions by increasing lined load gate damping.

1 cl, 4 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

FIELD: mining.

SUBSTANCE: group of inventions relates to mining industry and can be used in a bottom-hole valve system. A valve includes a body, a channel shutoff module, a mechanical lever mechanism, a drive module and a control unit. The body is provided with a channel for fluid medium flowing when the channel shutoff module is in an open position. When the channel shutoff module is in a closed position, the channel shutoff module prevents passage of fluid medium through the channel. The mechanical lever mechanism is functionally connected to the channel shutoff module and to the drive module. The main control unit determines a force applied to the mechanical lever mechanism based on the current operating state of the valve and makes the drive module apply the specified force to the mechanical lever mechanism. As a result, the mechanical lever mechanism brings the channel shutoff module into action.

EFFECT: improvement of efficiency of a bottom-hole valve system.

20 cl, 7 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: oil and gas industry.

SUBSTANCE: there is a description of pipe string for well completion installed in position neighbouring to zone or zones where hydraulic fracturing (HF) is to be performed and inflow is to be obtained. In preferable version its peculiarity concludes in valves with sliding couplings allowing implementation of at least two configurations; wide opening and opening of channel with filtering material located in it. Valve unit may have three positions where a position of complete closing is added to two above mentioned positions. After run-in-hole operation valves may be set to position of wide opening in any order required for HF. After completion of HF valves may be either closed or set to filtering position in a differentiated way to get inflow from the zone subjected to HF in any required order. There are various methods for valves actuation described. Pipe string may be provided with telescopic forcers providing HF if it is required to do string cementing. According to alternative version pipe string run in uncased well is just provided with holes for HF liquid passing through and outer packers for provision of HF in any required order.

EFFECT: proving HF in separated zones of formation in required order.

40 cl, 33 dwg

FIELD: oil and gas production.

SUBSTANCE: underwater valve assembly comprises valve, feed line 10 to be connected to remote fluid source 2 and to inlet 13 of valve 12. Valve outlet 14 is to be connected to discharge fluid line 15. Said assembly includes also tight casing surrounding, at lest, partially said valve. Fluid feed line 10 comprises outlet 101 inside said casing to set pressure there inside equal, in fact, to valve inlet pressure created by incoming fluid. Invention covers also the method of protection of said underwater valve.

EFFECT: possibility to use standard valves in deep waters.

9 cl, 2 dwg

Tapper valve // 2455547

FIELD: machine building.

SUBSTANCE: tapper valve contains a pipe with an end wall and an annular groove in the side wall of the pipe near its end wall to form an annular flange located at the inlet housing and fixed relative to the housing and the piston actuator with plunger. The drive is mounted on the wall of the housing and is communicated with a source of pressure and triggering device. In the wall of the housing above the end wall of the pipe a hole is made. The latter contains the plunger lip. On the to the wall of the valve body opposite to the plunger, on its external side a box-trap is attached. In the wall of the housing the window slit is made for the passage of the end wall of the pipe into the box-shaped trap, which is equipped with an end wall locking. The locking is made in the shape of a leaf spring attached to the side of the box trap. The unfixed part of the leaf spring is located near the end wall of the box-trap and is unfolded at an acute angle to the side of the box for support of the end of the unfixed part of the leaf spring on the annular collar of end wall of the pipe.

EFFECT: reduced length and diameter of the valve body, reduction of hydraulic pressure losses at the valve during consumption of liquid environment.

2 cl, 1 dwg

FIELD: machine building.

SUBSTANCE: fuel tank includes fuel pipeline passing inside fuel tank. Fuel pipeline passes from its receiving end in the direction towards its outlet end and is attached to inner upper wall of fuel tank. At least one element of steam fuel valves is connected to fuel pipeline between the above receiving end and the above outlet end. Hole is made in fuel pipeline between the above receiving end and the above outlet end to provide the function of the specified element of steam fuel valves. There is a version of fuel tank design and element of steam-fuel valves for fuel system of transport vehicle.

EFFECT: improving tightness of fuel tank due to fixture of elements of steam-fuel valves inside it so that fuel non-permeability is provided.

27 cl, 11 dwg

FIELD: machine building.

SUBSTANCE: fuel valve includes the main valve and auxiliary valve responding to pressure changes. The main and auxiliary valves are provided with possibility of axial movement inside common body. Body is equipped with fluid medium inlet and fluid medium outlet and partition between the main and auxiliary valves. Partition has a channel passing between the main channel on lower surface of partition and auxiliary valve on upper surface of partition. The main channel has the possibility of being closed tightly with sealing element of the main valve. Auxiliary channel has the possibility of being closed tightly with sealing element of the auxiliary valve. Auxiliary valve includes piston element and non-return valve. Piston element moves in axial direction inside the body and is equipped with one or more holes. Non-return valve contributes to fluid medium flow only in the direction from fluid medium outlet to auxiliary channel. Sealing element of auxiliary valve has the possibility of close contact with one or more of the above piston holes in case of the available flow in the direction from auxiliary channel to the above outlet. There is fuel tank equipped with the above fuel valve.

EFFECT: improvement of blowdown valve with double non-return valve, which actuates at turnover, which allows space saving, reducing manufacturing and installation costs and working hours.

8 cl, 6 dwg

FIELD: machine building.

SUBSTANCE: cross-over blow valve includes body equipped with inlet hole for fluid medium and outlet hole for fluid medium, valve seat restricting the body outlet hole, floating element arranged in the body and moved in axial direction between closed position and open position. In closed position the closing element is tightly borne against the valve seat of the body outlet hole to close the fluid medium outlet hole. In open position the closing element is detached from the valve seat. Fluid medium outlet hole is interconnected via flow to fluid medium inlet hole. There is pressure keeping device located between valve seat and outlet fluid medium hole, which has the possibility of closing the fluid medium flow until pressure difference between inlet fluid medium hole and outlet fluid medium hole does not exceed minimum threshold value. There is also single-action fluid medium inlet valve interconnected via flow to outlet flow medium hole, having the possibility, in case of reduced pressure in the area of inlet fluid medium hole, of passage of fluid medium flow of considerably high intensity in the direction towards the above inlet fluid medium hole.

EFFECT: improving operating reliability owing to using the pressure keeping device.

10 cl, 5 dwg

FIELD: machine building.

SUBSTANCE: explosion-protective valve contains valve body, heat-insulating and explosive components. Device additionally contains lined cargo gate. This gate is movably connected to valve body by means of not less than three flexible couplers, for instance in the form of chains. One end of chains is pivotally connected to valve casing. The other end of chains is pivotally connected to cargo gate. Valve body is implemented in the form of bottom cylindrical, middle conical and top parallel portions. In bottom parallel portion it is located lined cargo gate. Gate overlaps opening in casing of screened object. In top parallel portion of valve body it is located heat insulating component and sealing disc. Membrane is pressed to valve body by means of cover, pivotally connected to lever. Lever interacts to impingement plate. Fastener assembly of explosive component is fixed by its top part on lever, and bottom - to top parallel portion of valve body. Explosive component consists of wire, locking bolt, jaw, valve cover lever, nut, two drums located correspondingly in jaw lever of valve cover, and in jaw of top parallel portion of valve body. Ends of wire are inserted into openings of drums and then coiled on it. Gap between jaws is about 1,5÷3 of wire diametre. Valve parametres are in optimal ratio of values.

EFFECT: effectiveness increase of protection of manufacturing equipment against explosions by means of increasing of performance and reliability of operation.

2 dwg

FIELD: transport.

SUBSTANCE: invention is intended aeroplane cabin emergency hermetic sealing during water landing and may be used in situations requiring free air flow and preventing liquid flow. Device for aeroplane cabin emergency hermetic sealing in emergency water landing consists of casing with lid and floating ball valve. At that device is equipped with elastic ring rigidly secured on hull upper part, guide made as spring-loaded rod with flat centering spring with bends over periphery. Floating ball valve has on one side spherical surface contacting with elastic ring and on other side its cylinder-shape surface is rigidly connected with spring-loaded rod with flat centering spring with bends over periphery and lid. At that casing has windows for air flow.

EFFECT: improvement of valve hermetic sealing preventing penetration of water, simplification and improvement of valve performance under conditions of vibratory and impact loads, and automatic valve performance at expense of its buoyancy.

3 dwg

FIELD: blasting operations.

SUBSTANCE: device for selection of the hole size for easy detachable element of construction and its mass, designed to protect buildings and structures from explosions comprises an explosive chamber, in the upper base of which there is a hole overlapped by the easy detachable element. The hole area can vary by screwing the removable rings. The detachable element overlaps the hole in the ring, over which a protective shield is fixed. The second hole is overlapped by the valve which is pressed against the hole by means of an electromagnet and opens by the spring during opening of the contacts. The pressing force of the valve and compressing the spring is set so as the total force to be equal to the allowed pressure multiplied by the area of the valve hole, i.e. ΔF=Fe.m - Fpr=ΔPdm Scl, where Fe.m is the force of the electromagnet pressing the valve to the hole, N/m2; Fpr is force of compressing the spring, opening the valve, H:Fpr=(10÷15) gm, where g = 9.81 m/s2; m is mass of the electromagnet core with the valve, kg; ΔRdm is allowable pressure drop for the model plant; Scl is the area of opening the valve, m2. The easy detachable comprises a metal armoured frame with metal armoured coating and filler - lead having at the ends four fixed support tubes. In coating of the explosive object four support rods are rigidly embedded, which are telescopically inserted in the fixed support tubes of the panel. The filler is made in the form of the dispersion system air-lead, at that the lead is made in the form of crumbs, and the support rods are made elastic. Additionally, it comprises elastic-damping collapsing elements of single action, which are mounted on the support rods to the sheet-abutments through the damping base with the screws. A sleeve of single action is attached by the flange with the screws to the base coaxially to the rod, made of fragile, collapsible material such as porcelain. The space between the sleeve and the elastic part of the collapsible element is filled with construction foam, which connects the leaf springs with the sleeve of single action, forming a three-dimensional damper, which contributes to reliable fastening of the leaf springs and receives the first shock pulse.

EFFECT: invention enables to improve the efficiency of protection against explosions.

3 dwg

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