Gas pipeline blowoff valve

FIELD: natural gas industry; other industries; production of the gas pipeline blowoff valves.

SUBSTANCE: the invention is pertaining to natural gas industry and is intended for blowing through of the gas pipelines. The technical result of the invention is the increased efficiency of usage of the gas pipeline blowoff valves at augmentation of the quantity of the delivered for utilization of the waste heavy hydrocarbon fractions of the natural gas for their additional condensation in the area of formation of the microswirlings between the exterior funnel-shaped and interior perforated conical walls. In the gas pipeline blowoff valve in the holes of the perforated conical wall there are the curvilinear grooves, which curvature is directed counterclockwise, and the curvature of the guiding vanes is made in the clockwise direction.

EFFECT: the invention ensures the increased efficiency of usage of the gas pipeline blowoff valves.

4 dwg

 

The invention relates to gas industry and is intended for a purge gas.

Known for blowing the candle (see A.S. No. 731171, MCL F 17 D 1/02, 1978), including welded to the gas pipe with a shut-off device and set it to output tube with cap, made in the form of boxes formed by the outer funnel and inner perforated conical walls, bringing the tube below its upper edge, and on the top pairing and putting the tube is open, respectively, for the passage of gas and atmospheric air.

A disadvantage of the known device is that when the candles (purging gas) together with natural gas emitted into the atmosphere heavy hydrocarbon fraction, which leads to environmental pollution.

Known purge candle (see A.S. No. 985551, MCL F 17 D 1/02, 1982, bull. No. 48), including welded to the gas pipe with a shut-off device and set it to output tube with cap, made in the form of boxes formed by the outer funnel and inner perforated conical walls, between which are mounted guide vanes, and above them in the funnel-shaped wall made the hole for the condensate, while leaving the tube below its upper edge, and tip at pairing it with in the holding tube is made open, respectively for the passage of gas and atmospheric air.

The disadvantage is the low degree of separation of heavy hydrocarbon fractions from natural gas, resulting in significant environmental pollution, especially in significant costs due to long blowdown pipeline.

The technical object of the present invention is to improve the efficiency of the use of blowing candles by increasing the number of admissions for recycling emitted heavy hydrocarbon fractions of natural gas for further condensation in the area of education microcavity between the outer funnel and inner perforated cone walls.

The technical result is to increase the utilization efficiency of emitted heavy hydrocarbon fractions of natural gas is achieved by blowing the candle, including welded to the gas pipe with a shut-off device and set it to output tube with cap, made in the form of boxes formed by the outer funnel and inner perforated conical walls, between which are mounted guide vanes, and above them in the funnel-shaped wall made the hole for the condensate, while leaving the tube below its upper edge, and on the top is obrazenia it with the output of the tube is open, accordingly, for the passage of gas and air in the holes of the perforated conical wall is made of a curved groove, the curvature of which is directed counterclockwise, and the curvature of the guide vanes carried out clockwise.

Figure 1 presents the purge candle, General view; figure 2 is a top, sectional view; figure 3 - the direction of curvature of the curved blades; 4 - direction of curvature of the curved grooves on the inner surface of the holes of the perforated conical wall.

The device consists of a welded to the gas pipe 1 pipe 2, the cutting device (valve) 3 outlet pipes 4, which is below the top cut holes 5. To the output pipe has a cap, made in the form of boxes with external funnel 6 and the inner perforated cone 7 walls, between which there is a curvilinear (direction) of the blades 8, the curvature of which is carried out clockwise. On the outer wall of the tip at pairing it with output pipe 4 is made of box 9 and in the upper part of the hole 10, informing the cavity boxes with condensate. On the inner surface of each of the holes 11 of the perforated cone 7 walls are made longitudinally spaced from the inlet 12 and outlet 13 sections of curvilinear grooves 14, the curvature of which is s directed counterclockwise.

The device operates as follows.

While purging the gas line open cut-off device 3 and the gas enters through the outgoing pipe 4 and holes 5 on the guide vanes 8, the curvature of which is made clockwise, resulting in the moving gas stream is twisted in the direction of clockwise, creating microwire, rotating clockwise. Due to the kinetic energy of the entraining gas flow of atmospheric air through the holes 9 enters the annular space between the outer funnel 6 and the inner perforated cone 7 walls and mixes with the gas.

Due to the sudden pressure drop (with an average of 50 kg/cm to atmospheric), as a result of the sharp fall in temperature, heavy hydrocarbon fractions of natural gas are condensed and discarded by the centrifugal force of the rotating flow to the outer funnel wall 6 and the through hole 10 is disposed in the trap.

Partially purified from heavy hydrocarbon fractions of the natural gas passes through the holes 11 of the perforated cone 7 of the wall, where it moves from the input section 12 to the output section 13 on curved grooves 14, the curvature of which is directed counter-clockwise. Resulting in a moving gas stream is twisted counterclockwise, POPs is HaVaYaH microwire, rotating against the direction of movement clockwise. When the contact of different microwire in the annular space between the outer funnel 6 and the inner perforated conical walls 7 are formed micronutrient contributing more deep or heavy hydrocarbon fractions of natural gas and their subsequent removal through the opening 10 into the condensate. The result is a better separation of heavy hydrocarbon fractions for subsequent disposal, which significantly reduces the environmental pollution.

The originality of technical solutions to improve the efficiency of separation of heavy hydrocarbon fractions is that the conditions are more qualitative and quantitative separated from natural gas in the purge process by creating micronutrient in the annular space between the outer funnel and inner perforated conical walls through the creation of microwire different directions, continuously in contact with each other.

Blowing the candle, including welded to the gas pipe with a shut-off device and set it to output tube with cap, made in the form of boxes formed by the outer funnel and inner perforated to what usnei walls, between which are mounted guide vanes, and above them in the funnel-shaped wall made the hole for the condensate, while leaving the tube below its upper edge, and on the top pairing it with the output of the tube is open, respectively, for the passage of gas and air, characterized in that the holes of the perforated conical wall is made of a curved groove, the curvature of which is directed counterclockwise, and the curvature of the guide vanes carried out clockwise.



 

Same patents:

FIELD: oil industry.

SUBSTANCE: supersonic tube comprises Laval nozzle, cyclonic separator with the blade, diffuser for discharging dried gas, and diffuser for discharging condensed liquid. The blade is made of deformed plate set in the screw groove made in the inner side of the cyclonic separator. The length of the plate is at least ½ of the pitch of the screw groove. The housing of the tube of the cyclonic separator receives locking members whose faces enters the screw groove. The distance between the adjacent locking members mounted in the screw groove is equal to the length of the plate.

EFFECT: enhanced efficiency.

4 dwg

FIELD: gas industry.

SUBSTANCE: method comprises separating the mixture into C1 methane fraction with subsequent supply to gas pipeline and C2+ hydrocarbon fraction that are preliminary stabilized by its liquefying by means of preliminary cooling down to a temperature at least 16°C and supplying to the gas pipeline. The pressure is maintained at a level no less than 3,2 MPa.

EFFECT: enhanced reliability of one-phase transporting.

2 dwg

FIELD: storage or transporting of natural gas.

SUBSTANCE: method comprises cooling natural gas down to a temperature below the temperature of the ambient air and transporting the cooled natural gas.

EFFECT: enhanced efficiency of storage and transporting.

16 cl, 13 dwg

FIELD: the invention refers to energy-conservation technologies of pipeline transportation of natural gas.

SUBSTANCE: it may be used for controlling the technological process of the main pipeline with simultaneous selection out of gas of valuable ethane, propane, butane components. The technical result of the invention is reduction of energy inputs for maintaining pressure in the main pipeline, provision of stabilization of pressure in the main pipeline. The mode of transportation of natural gas along the main pipeline includes its feeding into the main pipeline on the first and the following compressor stations and giving out natural gas from the main pipeline through gas reducing stations and divide it on two flows one of them is directed into the pipeline of high pressure, and the other into a consumer pipe-bend. At that the gas of consumer pipe-bend is preliminary cooled and cleared from condensed and hard fraction, and then further cooling is executed till the temperature below the point of condensation of methane and division of cryogenic liquid and directed to the user, and out of received cryogenic liquid methane is separated from liquid ethane-propane-butane fraction which is returned into the pipeline of high pressure and further into the main pipeline, and detailed methane is directed into the pipe-bend. At that the gas in the pipeline of high pressure is preliminary additionally cooled, compremirated and returned into the main pipeline.

EFFECT: reduces power inputs.

7 cl, 1 dwg

FIELD: preparation and transportation of petroleum associated and natural gases.

SUBSTANCE: invention relates to preparation of gas for transportation along gas pipeline and separation of heavy fraction condensate from gas. Proposed plant for preparation of petroleum associated gas or natural gas for transportation along gas pipeline and obtaining of liquid hydrocarbons from gas intake line, device to increase and decrease pressure, gas flow line, liquid hydrocarbons extraction line, three-circuit heat exchanger, separator, expansion valve, two regulating valves and swirl pipe whose input is connected through pressure increasing and decreasing device from one side with inlet gas line through first regulating valve and through series-connected second regulating valve and first circuit of heat exchanger, and from other side, with output of expansion valve. Output of cold flow of swirl pipe is connected through second circuit of heat exchangers with gas flow line, output of hot flow of swirl pipe is connected through third circuit of heat exchanger with input of separator whose condensate output is connected with line to remove liquid hydrocarbons, and gas output, with input of expansion valve.

EFFECT: increased degree of separation of condensate of heavy fractions of hydrocarbons from petroleum associated gas or natural gas designed for transportation along gas pipeline.

1 dwg

FIELD: oil and gas industry.

SUBSTANCE: device comprises device for enhancing and reducing pressure, receiving gas line for supplying the plant with the gas, discharging gas line through which the gas after purification is supplied from the plant, two vortex pipes, ejector, and condensate collector. The inlet of the first vortex pipe is connected with the receiving gas line and outlet of the cold gas flow of the second vortex pipe through the device for enhancing or reducing pressure. The output of the hot flow of the first vortex pipe is connected with the inlet of the first separator through the ejector, and the condensate outlet of the separator is connected with the inlet of the second vortex pipe. The outlet of the cold flow of the second vortex pipe is connected with the receiving gas.

EFFECT: enhanced quality of purification.

1 cl, 1 dwg

FIELD: pipeline transport.

SUBSTANCE: method comprises intensifying extraction of low-pressure gas in tanks of oil stabilization due to rarefying gas in the inlet gas collector that connects the tank with the inlet of liquid-gas jet compressors by mixing the pumping product with active agent and increasing initial pressure of the low-pressure gas up to the pressure required by a consumer with simultaneous condensation of C5+ fraction. The gas-liquid mixture is supplied to the air cooling apparatus. After the separation of gas from the active agent, purifying and drying the compressed gas is intensified by supplying the compressed gas into the vortex pipe and, then, to the consumer.

EFFECT: improved method.

1 dwg

FIELD: pipeline transport.

SUBSTANCE: power plant is additionally provided with a turbine expander provided with an electric generator. Power generated by the steam plant is directed to the main gas pipeline, and a part of power is directed to the turbine expander with electric generator to produce electric power.

EFFECT: enhanced reliability and efficiency.

1 cl, 1 dwg

The invention relates to techniques for managing operations of the process gas transportation

The invention relates to pipeline transport

FIELD: equipment for dry cleaning of gases from coarse dust.

SUBSTANCE: apparatus has volute-concentrator with dust discharge branch pipe connected to gas flue for feeding of gas having high concentration of solid phase to outside cyclone, radial guiding device having guiding blades connected to exhaust branch pipe, and gas flue for returning of purified gas. Volute-concentrator is equipped with additional separating spiral L-shaped and U-shaped devices and is positioned in front of heat-exchanger. Apparatus allows total purification extent of gas containing substantial amounts of wind-driven particles to be increased by 2-3%.

EFFECT: increased efficiency and enhanced reliability in operation of dust catching apparatus.

3 dwg

The dust collector // 2234968
The invention relates to a device for trapping of dust by centrifugal forces in a dusty gas stream and can be used in cement, silicate, asphalt and other filegenerator enterprises

The invention relates to the purification of gas and steam from foreign inclusions
The invention relates to techniques for gas cleaning from dust in thermal power and metallurgy

Trap // 2092231
The invention relates to a device for trapping foreign particles transported in air-cotton blend using inertial forces and may find application in textile industry

The dust collector // 2010588

FIELD: equipment for dry cleaning of gases from coarse dust.

SUBSTANCE: apparatus has volute-concentrator with dust discharge branch pipe connected to gas flue for feeding of gas having high concentration of solid phase to outside cyclone, radial guiding device having guiding blades connected to exhaust branch pipe, and gas flue for returning of purified gas. Volute-concentrator is equipped with additional separating spiral L-shaped and U-shaped devices and is positioned in front of heat-exchanger. Apparatus allows total purification extent of gas containing substantial amounts of wind-driven particles to be increased by 2-3%.

EFFECT: increased efficiency and enhanced reliability in operation of dust catching apparatus.

3 dwg

FIELD: natural gas industry; other industries; production of the gas pipeline blowoff valves.

SUBSTANCE: the invention is pertaining to natural gas industry and is intended for blowing through of the gas pipelines. The technical result of the invention is the increased efficiency of usage of the gas pipeline blowoff valves at augmentation of the quantity of the delivered for utilization of the waste heavy hydrocarbon fractions of the natural gas for their additional condensation in the area of formation of the microswirlings between the exterior funnel-shaped and interior perforated conical walls. In the gas pipeline blowoff valve in the holes of the perforated conical wall there are the curvilinear grooves, which curvature is directed counterclockwise, and the curvature of the guiding vanes is made in the clockwise direction.

EFFECT: the invention ensures the increased efficiency of usage of the gas pipeline blowoff valves.

4 dwg

FIELD: chemistry.

SUBSTANCE: present invention is meant for trapping fine-dispersed and aerosol liquid and solid particles from a gas stream. The separator has a vertical cylindrical case with top and bottom ends, and a horizontal circular partition wall dividing the case into a vortex and an extra chamber. The vortex chamber is fitted with inlet and spill pipes, a deflector with a deflection plate, and separation packet with a trapping bag. The extra chamber is fitted with an outlet pipe, apparatus for trapping liquid and a hydraulic bag. The horizontal partition wall has cross-over and drain holes. In the fist version the vortex chamber is fitted with a bent drainage pipe, one end of which is attached to the bottom of the horizontal partition wall, and the second free end placed in the path of the swirling motion of the stream. In the second version the vortex chamber is fitted with drop-shaped cowlings, attached to the bottom of the horizontal partition wall, covering the drain hole, and provided with an opening at the bottom point, hydraulically linked with the drain hole. The free end of the drainage pipe is preferably put into a guide channel. The drainage pipe or cowling is put into a deflector or near the outlet of the deflector.

EFFECT: reduced amount of trapped liquid, located in the extra separation chamber, more complete and efficient removal of the liquid from this chamber.

14 cl, 8 dwg

FIELD: chemistry.

SUBSTANCE: present invention is meant for trapping fine dispersed and aerosol liquid and solid particles from a gas stream and can be used in the oil, gas, chemical and other industries. The separation bag has on its surface, vertical arched separation plates, fixed on top of the circular top cover with an outlet opening. The separation plates form equal, constant-size slit-type channels in the in the mutual overlapping area. Near these channels in the separation plates, there are through-holes, lying opposite each other in adjacent separation plates. The holes are mainly located at the centre of the slit-type channels, with a circular, rectangular or some other shape. Two holes can made in the top part of the plates and two in the bottom part or two holes in the top part of the plates, two in the middle part and two in the bottom part. Four holes can be made along each vertical edge of each plate.

EFFECT: more efficient separation.

6 cl, 7 dwg

Up!