Filling station for liquefied hydrocarbon gases
(57) Abstract:Filling station consists of a vessel and connective communication with the sealed annular space, and equipment for pressure control. The space between the walls of the vessel and communications filled with inert gas with pressure PATM<P
where RATM- atmospheric pressure, P is the pressure in the annular space, Rslave- pressure in the vessel. Each segment communications limited at the ends of the flanges or couplings: deaf or control channels. Wafer or coupling gap through the channels connected to the annular space communications. At the ends of the section of the communications set the lens compensators. The use of the invention will apply effective protection against leakage of liquefied hydrocarbon gases. 1 C.p. f-crystals, 2 Il.The invention relates to the field of storage and refuelling of vehicles and household gas liquefied petroleum gases (LPG).Known gas station company West Montagen MAINZ (Germany), representing an underground storage tank with accessories, communications, pump, gas column for filling LPG system protection. Upon reaching contenta ventilation, upon reaching the gas concentration in air of 40% of the lower explosive limit of flame propagation is enabled, the system emergency stop. A disadvantage of the known design is that the penetration of the vapor phase LPG to the atmosphere and the soil in case of depressurization of the vessel or communications in the weld, heat affected zones, connections, communications, and the discharge of LPG to the atmosphere from process equipment and pipelines in case of emergency leak of LPG.The closest analogue of the claimed invention is the device of LPG filling stations, comprising a vessel with a sealed annular space and connecting communication (see patent US 5884488, CL F 17 C 13/00, 1999).The technical result of the invention is to design a gas station that delivers powerful protection against leakage of LPG to the atmosphere and the soil, the ability to control these leaks and the use of actuators to provide electric discharge residue gas vessel and communications, as well as the blocking of an emergency when it occurs without release of LPG in the environment.This technical result is achieved by the fact that gas stanie communication, equipped with the equipment to control the pressure between the walls of the connecting communication is made with a sealed annular space, and the space between the walls of the vessel and communications filled with inert gas with pressure PATM<P
where RATM- atmospheric pressure, P is the pressure in the annular space, Rslave- pressure in the vessel, with each segment communications limited at the ends of the flanges or couplings: deaf and control channels, flanges or coupling gap through the channels connected to the annular space communications, and at the ends of the section of the communications made lens compensators.The vessel is equipped with a hatch cover, and the station - drainage pipe for pumping heavy fractions and non-combustible residues of liquefied petroleum gas.In Fig.1 shows a vessel filling station of Fig.2 - site communications petrol station.Filling station includes LPG vessel 1 and the container 3 with the annular space 2 between them, a support 4, a cover 5 covers, gaskets, 6, 7 conclusions for the control equipment, terminals 8 for the Executive working mechanisms, the drain pipe 9. Site communications including the equipment 16, the inner strip 17, the outer strip 18, wafer or mimotope space 19 and the compensator 20.A filling station, LPG, filled to 85% of a mixture of propane and butane, is operated as follows. Annular space 2 and 3 are filled with an inert gas with pressure PATM<P
where RATM- atmospheric pressure, P is the pressure in the annular space, Rslave- pressure in the vessel (elasticity LPG). When the tightness of the system pressure P=const.When the depressurization of the pressure P becomes equal to Rslave. With increasing pressure P through the control apparatus 16 is blocked by the operation of a gas station. When the depressurization of the strip 6 and the flange of the pipe capacity 3 pressure P becomes equal to RATM. When the reduced pressure P through the control apparatus 16 is also blocked the work station. The station is installed in the underground variation with temperature of the surrounding soil t=10o5oFor middle latitudes. Filling station, LPG according to GOST can be conducted at temperatures from -40oC to +50oAnd pressure Pslavefrom 0.05 MPa to 1.6 MPa. To compensate for the linear and volume thermal expansion and contractions which I slip on these supports, and the cover 5 through the strip 6 connect the vessel 1 with a capacity of 3. The absence of rigid welded and mechanical joints contributes to the maturity of temperature extremes and fatigue stresses of the vessel 1 and vessel 3. Drainage pipe 9 located on the bottom of the vessel 1 and the annular space 2, allow through the cover 5 covers actuators 8 to produce the pumping of heavy fractions and non-combustible residues of LPG as their accumulation.The annular space 14 plot of communications channels 13 of the flange or coupling 12 is connected with the space 19 formed by the strips 17, 18 and flanges (collars) 11, 12. When the pressure loss of the inner strip 17 to increase or decrease the pressure P leads to block a gas station through the control apparatus 16.To speed up the search of a flaw in the plot of communications made Autonomous and bounded at the ends of the flanges (collars): blind flange (coupling) 11 and the flange (coupling) with 12 channels connecting between the walls and face-to-face space with the control apparatus 16. Utilities on the site the annular space 14 limited rigid welded or mechanical connections. Pipe 10,15 and flanges (clutch) 11,12 are connected through a lens to the th annular space and connective communication, characterized in that the station is equipped with instrumentation to monitor the pressure between the walls, connecting the communication is made with a sealed annular space, and the space between the walls of the vessel and communications filled with inert gas with pressure PATM<P
where RATM- atmospheric pressure, P is the pressure in the annular space, Rslave- pressure in the vessel, with each segment communications limited at the ends of the flanges or couplings: deaf and control channels, flanges or coupling gap through the channels connected to the annular space communications, and at the ends of the section of the communications set the lens compensators.2. Gas station on p. 1, characterized in that the vessel is equipped with a hatch cover, and the station - drainage pipe for pumping heavy fractions and non-combustible residues of liquefied petroleum gas.
FIELD: cryogenic engineering.
SUBSTANCE: drain device comprises branch pipe mounted in the casing and provided with several coaxial baffles . The spaces between the baffles are interconnected and are connected with the space between the branch pipe and casing. The outlet section of the branch pipe is connected with the casing of a shaped cross-piece and the inner side of the branch pipe and outer side of the shaped cross-piece is provided with an adhesive coating. The nozzle is provided with fastening flange. The inlet section of the casing can be provided with ribs on the outer side, and shaped cross-piece can be made of a cone whose outer angle is 230-250°. The adsorbing coating can be applied on the outer side of the branch pipe.
EFFECT: enhanced reliability.
3 cl, 1 dwg
FIELD: methods or apparatus for discharging gasses from pressure vessels.
SUBSTANCE: device comprises hollow housing and base that covers the housing. The housing receives connecting members, collector, and valving member. The collector is defined by the interconnected pipes. The valving member has the valve connected with the exhaust pipe. The pipes of the collector, housing of the valve, and exhaust pipe are defined by two interconnected shaped members.
EFFECT: simplified design and reduced power consumption.
26 cl, 15 dwg
FIELD: fire-fighting, particularly special adaptations of indicating, measuring, or monitoring equipment.
SUBSTANCE: fire-fighting device comprises cylinder filled with fire-extinguishing composition and means to indicate gas losses owing to gas leakage from the cylinder. The means comprises capacitive sensor calibrated in temperature range below and above critical carbon dioxide temperature.
EFFECT: increased reliability of gas leakage determination without cylinder weighting.
17 cl, 6 dwg
FIELD: cryogenic engineering.
SUBSTANCE: tank comprises vessel, two pairs of insulating supports, and locking unit. Each of the supports is made of semi-spherical insert mounted in the socket of the bed and interacting with the cantilever which is secured to the housing of the vessel through the insulating spaces. The unit for locking against the longitudinal and transverse loads is made of spherical stop that cooperates with the vessel by means of heat insulating sleeve mounted on the fitting at the center of the bottom section of the vessel. The movement of the supports of the vessel in longitudinal directions during temperature deformation is provided with the grooves made in cantilevers that receive bushing mounted by means of fastening members. The bushing has grooves for permitting transverse movement of the supports of the vessel.
EFFECT: enhanced reliability and reduced labor consumption for assembling.
FIELD: transportation and storage in pipelines and vessels liquids freezing at low temperature of environment.
SUBSTANCE: method is realized for pipelines and vessels filled with liquid freezing at low temperature due to using compensators immersed in said liquid, having volume determined by calculation and made of plastic materials non-absorbing water and compressed by action of pressure of liquid (water) frozen inside said vessels and pipelines.
EFFECT: possibility for keeping integrity of vessels filled with liquid expanded at low temperature at transporting them.
4 cl, 4 dwg
FIELD: storing or distributing gases or liquids.
SUBSTANCE: station comprises pressure-tight vessel filled with liquefied hydrocarbon gas, communications for connection of the vessel with the gas distributing column through the actuating mechanisms, and system for control of gas leakage. The system for control of the gas leakage comprises the device for control of the weight of the vessel with the pickup of weight, unit for control of the flow rate of liquefied hydrocarbon gas, converter for converting the electric signal to the frequency characteristic, adder, analyzer, and unit for control of the actuating mechanisms. The output signal from the weight pickup is fed to the input of the converter. The outputs of the flow rate unit is connected with the first input of the adder whose second input receives the signal from the converter. The output of the adder is connected with the first input of the analyzer whose second input is connected with the output of the converter. The output of the analyzer is connected with the unit for control of actuating mechanisms.
EFFECT: enhanced safety and reliability.
23 cl, 2 dwg
FIELD: image transmission from area with high dynamic pressure to area with low dynamic pressure and prevention of liquid flow from one area to another one.
SUBSTANCE: inspection hole comprises frame with translucent member installed in plastic collar and arranged in the frame. The collar comprises bush and two protective washers. Sealing members are installed on cylindrical surface of translucent member so that the sealing members are located between bush and protective washers. Support ring and flexible member are installed from each end side of the collar. Support ring has rim formed around orifice edge. The flexible member may be made as disk spring washer. The support ring is brought into contact with protective washer over the full surface thereof. All components are retained in frame by means of nut or flange connected to the frame with bolts. Adjustment padding may be installed between the support ring and flexible member.
EFFECT: increased load-bearing capability along with possibility to retain structure air-tightness under the action of shock waves.
3 cl, 1 dwg
FIELD: pressure vessels.
SUBSTANCE: multi-chamber tank comprises bank of tubes that bear on the plates provided with parallel rows of openings that can receive the tubes mounted in such a manner that each tube is almost in a contact with the adjacent tubes, frame made of fiber resin that fills all the spaces in the tube bank, ties that connect two covers with tube banks and pass through the spaces in the tube bank and the openings in the plates, outer strengthening layer, outer casing made of sheet aluminum, and standard gas cock mounted in the port made in one of the covers.
EFFECT: enhanced safety.
FIELD: storing or distributing gases or liquids.
SUBSTANCE: device comprises cylindrical housing with space for supplying and discharging gas, means for directing the drill, and seals. The housing is provided with thread at its one end, longitudinal groove for receiving the slide made for permitting movement along the groove, and with mechanism for fastening. The means for directing the drill is made of a bushing with passage and lid and is secured to the slide. The thread at one of the ends of the housing is made for threaded ring of the vessel neck, and the other end of the housing is provided with seat for the hose for discharging gas.
EFFECT: enhanced reliability.
1 cl, 1 dwg
FIELD: equipment for emptying of failed bottles containing compressed, liquefied and dissolved under pressure gases, applicable for discharge of gas from a bottle with a faulty valve.
SUBSTANCE: the device has a frame with a fixture for gripping the bottle, sealing and a gas abstraction system. Two supports with bearings are fastened in the frame, a movable sleeve is installed on the bearings between the supports, the sleeve is made with a radial hole in which a wrench-gripper is placed for motion in the radial direction. The gas abstraction system is positioned on the support distant from the bottle, and a partition with holes is made in the branch pipe of the gas abstraction system.
EFFECT: facilitated servicing due to simplified construction.
2 cl, 1 dwg