EP3660381B1 - Fitting for liquefied gas bottles and filling method - Google Patents
Fitting for liquefied gas bottles and filling method Download PDFInfo
- Publication number
- EP3660381B1 EP3660381B1 EP19210220.0A EP19210220A EP3660381B1 EP 3660381 B1 EP3660381 B1 EP 3660381B1 EP 19210220 A EP19210220 A EP 19210220A EP 3660381 B1 EP3660381 B1 EP 3660381B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gas
- fitting
- refilling
- opening
- bottle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims description 10
- 239000007788 liquid Substances 0.000 claims description 48
- 238000005086 pumping Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 description 125
- 238000007789 sealing Methods 0.000 description 18
- 238000000605 extraction Methods 0.000 description 7
- 230000007704 transition Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000009172 bursting Effects 0.000 description 2
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/04—Arrangement or mounting of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/12—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/12—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
- F17C13/123—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures for gas bottles, cylinders or reservoirs for tank vehicles or for railway tank wagons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
- F17C5/02—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with liquefied gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/03—Orientation
- F17C2201/032—Orientation with substantially vertical main axis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/05—Size
- F17C2201/056—Small (<1 m3)
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/05—Size
- F17C2201/058—Size portable (<30 l)
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
- F17C2203/0634—Materials for walls or layers thereof
- F17C2203/0636—Metals
- F17C2203/0639—Steels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/0323—Valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/0323—Valves
- F17C2205/0329—Valves manually actuated
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/0323—Valves
- F17C2205/0332—Safety valves or pressure relief valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/0382—Constructional details of valves, regulators
- F17C2205/0385—Constructional details of valves, regulators in blocks or units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0388—Arrangement of valves, regulators, filters
- F17C2205/0394—Arrangement of valves, regulators, filters in direct contact with the pressure vessel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/03—Mixtures
- F17C2221/032—Hydrocarbons
- F17C2221/035—Propane butane, e.g. LPG, GPL
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0146—Two-phase
- F17C2223/0153—Liquefied gas, e.g. LPG, GPL
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/04—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by other properties of handled fluid before transfer
- F17C2223/042—Localisation of the removal point
- F17C2223/046—Localisation of the removal point in the liquid
- F17C2223/047—Localisation of the removal point in the liquid with a dip tube
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
- F17C2225/04—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by other properties of handled fluid after transfer
- F17C2225/042—Localisation of the filling point
- F17C2225/046—Localisation of the filling point in the liquid
- F17C2225/047—Localisation of the filling point in the liquid with a dip tube
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
- F17C2227/04—Methods for emptying or filling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2270/00—Applications
- F17C2270/07—Applications for household use
- F17C2270/0709—Camping gas
Definitions
- the invention relates to a fitting for liquid gas cylinders and a method for refilling with liquid gas.
- FR55136E discloses a fitting for an LPG cylinder.
- a gas cylinder is a pressure vessel, usually made of metal, usually steel, for the transport and storage of pressurized gases.
- a pressure vessel usually made of metal, usually steel, for the transport and storage of pressurized gases.
- Such a bottle can have a volume of more than 100 liters.
- the nominal pressure can be several hundred bar.
- LPG cylinders contain gases such as LPG in liquefied form. Common gases are ethane, propane, butane and mixtures thereof. These gases can be liquefied at room temperature by comparatively low pressure.
- the liquid gas content of such bottles is usually between 3 and 33 kg.
- the height of such liquid gas cylinders is usually between 420 mm and 1290 mm.
- the bottle diameter is typically between 200 mm and 318 mm.
- LPG cylinders are sealed with a fitting to which a suitable hose line can be screwed, usually in conjunction with a pressure reducer, for controlled removal of their contents.
- a safety valve in the extraction fitting for liquid gas cylinders, which limits the permissible overpressure in the cylinder to around 30 bar, for example, in order to prevent it from bursting.
- a fitting of such a liquid gas bottle has a lateral connection piece as a gas tap, which is used on the one hand for filling and on the other hand for removal. Lines are manually screwed onto this gas tap both in the case of removal and in the case of refilling.
- the side connection piece When the gas tap is open, the side connection piece is connected to an opening on the underside of the fitting for gas conduction. This underside with the opening is above the liquid level when a liquid gas cylinder is in the upright position. When gas is removed, the gas that is in the gaseous state above the liquid level is therefore removed.
- LPG cylinders are used to operate gas stoves, gas cookers, gas grills, gas heaters or gas radiant heaters. Is the content of a liquid gas bottle used up, LPG cylinders are returned by the consumer to the point of sale of LPG cylinders for refilling. After such a return of a liquid gas bottle, it is transported from the point of sale to a central filling system or filling station.
- a fitting according to the claims comprises a gas tap for removing gas and an opening for refilling a liquid gas bottle.
- the opening for refilling a liquid gas bottle can be connected in a gas-conducting manner, in particular by opening a valve, to a hose-shaped or tubular line of the fitting, which can extend at least 300 mm, preferably at least 400 mm, into a liquid gas bottle when the fitting is connected to such a gas bottle .
- This ensures that the line can reach into the liquefied part of the gas, which above all enables very rapid emptying by pumping. Emptying is required if a refilled gas cylinder is found to be leaking. This results in a speed advantage.
- the fitting there is an opening at the bottom of the fitting adjacent to the hose or pipe.
- the bottom is the side that is adjacent to the LPG cylinder or is fully within the cylinder or in the neck of the cylinder when the fitting is connected to an LPG cylinder.
- This opening on the underside can be connected to the gas tap to conduct gas, usually by turning a corresponding rotary handle.
- the hose-shaped or tubular line protrudes from this opening, preferably by at least 200 mm, particularly preferably by at least 300 mm.
- the hose-shaped or tubular line is therefore preferably so long that it extends to the bottom of a gas bottle connected to the fitting. As a rule, this line is therefore no longer than 1290 mm.
- the opening for refilling the liquid gas bottle is advantageously located on the top of the fitting. This makes refilling easier as a LPG cylinder does not have to be oriented for refilling. In particular, automatic refilling in an automated filling station is possible with little technical effort.
- the gas tap via which the gas is removed for consumption, preferably protrudes laterally from the fitting.
- the gas tap can preferably be opened and closed by means of a rotary handle or handwheel.
- the handwheel is advantageously placed around the feeder for refilling.
- a nut with a spindle, for example, is actuated via the handwheel in such a way that a body provided for this purpose can be moved up and down. This opens or closes the gas valve.
- the opening for refilling a liquid gas bottle can be opened and closed by a valve. This facilitates and speeds up refilling since liquid pressure can be enough to open the valve for refilling.
- the valve preferably comprises a valve body which is urged into its closed valve position by a preloaded spring. This contributes to being able to open the valve for refilling solely by means of liquid pressure. In addition, emptying by pumping is facilitated since the valve can be opened through a nozzle or mandrel of a suction head by connecting the suction head to the opening provided for this purpose. Following this, it can be sucked off immediately, which makes automated refilling possible, which can be carried out even by an end user, taking into account the increased safety effort then required.
- the valve body is preferably a hollow cylinder that includes lateral openings.
- the valve body can then advantageously be part of the line via which liquid gas is fed into the bottle for refilling or via which liquid gas is sucked off for emptying.
- the valve body is preferably provided with a circumferential, replaceable sealing ring which seals the valve in a liquid-tight and gas-tight manner when it is closed. In the event of a leak, replacing the sealing ring is usually sufficient to restore the functionality of the valve.
- the sealing ring when the valve is in the closed state, the sealing ring is pressed against a cone-shaped transition which connects a tubular section with a tubular section which is widened in relation to it.
- This configuration makes it possible to use the two tubular sections as a supply line, so that it can be produced in a compact manner with little technical effort.
- a closing element in particular in the form of a hollow-cylindrical section, which interrupts a gas-conducting connection between the gas tap and the opening on the underside of the fitting, into which gas from a connected liquid gas bottle can flow, when the valve body is in its open position position is moved.
- a closing element in particular in the form of a hollow-cylindrical section, which interrupts a gas-conducting connection between the gas tap and the opening on the underside of the fitting, into which gas from a connected liquid gas bottle can flow, when the valve body is in its open position position is moved.
- the hollow-cylindrical section is preferably a section of the line that connects the gas tap to an opening on the underside of the fitting, into which gas from a connected liquid gas bottle can flow. This reduces the technical complexity of production and also enables a compact design.
- the opening for refilling a liquid gas bottle is preferably funnel-shaped in order to facilitate connection to a filling head or suction head by centering.
- the fitting is advantageously constructed in such a way that either gas can be removed via the gas tap or it can be refilled or emptied via the opening provided for this purpose. It can then not be refilled at the same time and at the same time gas can be drawn off via the gas tap. This avoids risks during gas sampling or refilling.
- a further gas removal option preferably via a quick coupling.
- a hose for example, can be connected to this further gas extraction option, specifically for permanent, generally non-adjustable gas extraction.
- This additional gas extraction option is intended for balloonists in order to be able to permanently supply a flame with gas.
- This flame serves as an ignition flame, for example.
- This flame basically requires little gas. It will be e.g. B. prevents that too much gas can be consumed by turning the hand wheel for the pilot flame too far. If a quick coupling is provided, the gas extraction can only be made possible by connecting an appropriate coupling piece. This prevents accidental opening.
- a bursting safety device which is destroyed if the internal pressure is excessively high, in order to allow gas to escape in a controlled manner and thus to reduce an excessively high internal pressure.
- the figure 1 shows a fitting 1 for a gas bottle in a sectional view.
- a gas tap 2 with an external thread, which protrudes laterally and horizontally from a standing gas bottle, not shown, when the fitting 1 is connected to a gas bottle as intended.
- the line of a gas consumer for example a gas grill, can be screwed onto the gas tap 2 in order to remove gas.
- the funnel-shaped opening 3 In addition to the laterally protruding socket 2, there is a funnel-shaped opening 3 into the fitting 1 at the top.
- the funnel-shaped opening 3 leading upwards serves as a central filling and suction point.
- the funnel-shaped junction or opening 3 is connected to a filling head or suction head of a gas filling station.
- An upper area of the outer wall of the central filling point that is accessible from the outside has two circumferential grooves 4 in order to enable a form-fitting clasp with complementarily shaped grippers of a filling head or suction head.
- a positive connection between the outer wall with the grooves 4 and a suction head or filling head can thus be created during filling or during the extraction of gas in order to prevent an unplanned release of a head during the filling or emptying of a gas cylinder.
- a hollow-cylindrical valve body 6 has a sealing ring 7 in a lower area, which is held in a corresponding circumferential groove of the valve body 6 .
- the valve body 6 is pretensioned in the direction of the opening 4 by a spring 8 .
- the sealing ring 7 is pressed against a cone-shaped transition 9 for closing the valve.
- Access via the opening 4 into the fitting 1 is then as in FIG figure 1 shown, gas-tight and liquid-tight sealed and more reliable and durable compared to that of the publication DE 43 34 182 A1 well-known ball valve of the central filling point.
- valve body 6 is in the closed state of the valve as in FIG figure 1 shown predominantly in a tubular section 10, the inner diameter of which corresponds to the outer diameter of the valve body 6. The valve body 6 is therefore guided through this tubular section 10 .
- the spring 8 is located in a tubular section 10 which is widened in comparison thereto.
- the tubular section 10 is connected by the cone-shaped transition 9 to a tubular section 11 which is widened in comparison thereto.
- the inner diameter of the widened section 11 is slightly larger than the diameter of the spring 8.
- the widened section 11 is therefore used i.a. the support and guidance of the spring 8 as it is further tensioned to open the valve.
- the hollow-cylindrical valve body 6 is closed with a rod 12 at the lower end.
- the rod 12 extends into a cylinder 13 .
- the inner diameter of the cylinder 13 is larger than the outer diameter of the rod 12, so that a free space 14 remains between the cylinder 13 and the rod 12.
- valve body 6 The end of the hollow-cylindrical valve body 6 opposite the rod 12 is open.
- valve body 6 has lateral openings 15 in the vicinity of the rod 12, which are gas-conductively connected to its interior space or lead into its interior space. If the valve body 6 is pressed downwards by fluid pressure or mechanically until the lateral openings 15 enter the widened section 11, the valve is open.
- the open state of the valve shows the figures 2 and 3 .
- the cylinder 13 is sealed off from a section 21 of the housing wall of the fitting 1 by sealing rings 19 .
- cylinder 13 is sealed by sealing rings 20 in relation to a cylindrical lower section 22 of turning handle 16 .
- the sealing rings 19 and 20 prevent gas from escaping from the fitting.
- the rotary handle 16 is rotatably held by a ball bearing 23 .
- a cap 24 is screwed onto the body portion 21 so as to rotatably connect the rotary handle 16 to the body portion 21 .
- the fitting 1 has two openings 25 and 26 on the underside (see in particular the three-dimensional representation of the figure 5 ).
- This underside is located in the gas bottle or in the bottle neck when the fitting is connected to a gas bottle as intended.
- the opening 25 is located at the lower end of a tubular line 27 at the bottom of a correspondingly connected gas cylinder. Via this opening 25, the gas bottle is filled with gas or liquid gas is sucked off after the valve with the valve body 6 has been opened. Gas is removed from the bottle via the other opening 26 for consumption by a consumer connected to the gas tap 2, namely after the gas tap has been opened by turning the rotary handle 16 accordingly.
- the opening 26 is connected to an inner opening 28 in a gas-conducting manner.
- the lower end of the rod 12 is connected to a hollow-cylindrical section 29 which is provided with an opening 30 in the transition area between the rod 12 and section 29 . If the valve body 6 is pressed downwards, the hollow-cylindrical section 29 is pressed against a sealing ring 31 which is located at the lower end of a guide 32 .
- the figure 1 shows the case that the valve 1 is closed. Aspiration or filling is not possible because the valve is closed. Gas extraction via the gas tap 2 is not possible because this is prevented by pressing the sealing ring 17 against the bevel 18, ie the gas tap is closed.
- the figure 2 illustrates the filling via the fitting 1.
- the lateral socket 2 is closed and the funnel-shaped opening 4 is connected to a filling head, not shown, which is pressed against the sealing ring 5 in the funnel-shaped opening 3 in a liquid-tight manner.
- the in the figure 1 Opening 28 shown closed.
- a gas-conducting connection between the gas tap and the opening 26 located on the underside is thus interrupted.
- It is now LPG in accordance with of the arrow 33 is pumped into the funnel-shaped opening 3 .
- the valve body 6 is pressed downwards until the hollow-cylindrical section 29 is pressed against the sealing ring 31 .
- the lateral openings 15 of the valve body 6 are now in the widened tubular section 11.
- the liquid gas pumped in along the arrow 33 can now exit from the openings 15 of the valve body 6 and specifically into the widened tubular section 11.
- the liquid gas can flow around the lower section of the valve body 6, as the arrows 34 indicate.
- the liquid gas flows from the widened tubular section 11 into the space 14 between the rod 12 and the housing section 21 and thus enters the tubular or hose-shaped line 27 as shown by the arrows 35 and 36 .
- the liquid gas then exits the fitting 1 according to the arrow 37 and thus reaches the bottom of a gas bottle, not shown, to which the fitting 1 is attached.
- the figure 2 illustrates that the hollow-cylindrical section 29 has a smaller outer diameter 38 in an upper region, so that in the case of figure 2 to create such a distance to the adjacent housing inner wall such that a gas flow according to the arrow 36 is possible.
- valve body 6 For suction or emptying, the valve body 6 is pressed down mechanically by a mandrel or nozzle of a suction head placed on the funnel 3 . Subsequently, liquid gas can be sucked off according to the arrows 39 to 43, as in FIG figure 3 shown. Since suction is carried out from the bottom due to the hose or tube 27, it is thus ensured that liquefied gas is removed and no gaseous atmosphere above the liquid level in the gas cylinder. A liquid gas bottle can therefore be pumped out particularly quickly and with little effort.
- the figure 4 shows the fitting 1 in the open state of the gas tap 2 and in the closed state of the valve.
- the gas cock 2 is open because the valve body 6 is in its closed position and the cylinder 13 is moved upwards by turning the unit 16 and the sealing ring 17 has therefore been removed from the bevel 18 .
- the gas which is above the liquid level in the liquid gas bottle, can now enter the opening 26 according to the arrow 44 and flow to the opening 28 on the inside. From the opening 28 the gas arrives according to the arrow 45 into the interior of the hollow-cylindrical section 29.
- the gas then exits via the opening 30 at the upper end of the hollow-cylindrical section 29 and enters the intermediate space 14 according to the arrow 46. Since there is now a distance between the sealing ring 17 and the bevel 18, the gas can flow further into the nozzle of the gas tap 2 according to the arrow 47 and from here be forwarded to the consumer according to the arrow 48.
- such a fitting is particularly advantageous in that either gas can be removed via the gas tap or refilling or emptying can take place via the central opening 3 . It cannot then be refilled and gas can be removed via the gas tap at the same time.
- the procedure for refilling also provides for emptying in the event that a gas leak is detected. Emptying can take place particularly quickly, since liquid is pumped out and not gas.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Lift Valve (AREA)
Description
Die Erfindung betrifft eine Armatur für Flüssiggasflaschen sowie ein Verfahren für ein Wiederbefüllen mit Flüssiggas.The invention relates to a fitting for liquid gas cylinders and a method for refilling with liquid gas.
Eine Gasflasche ist ein in der Regel aus Metall, regelmäßig aus Stahl, bestehender Druckbehälter für den Transport und die Lagerung von unter Druck stehenden Gasen. Eine solche Flasche kann ein Volumen von mehr als 100 Litern aufweisen. Der Nenndruck kann mehrere Hundert bar betragen.A gas cylinder is a pressure vessel, usually made of metal, usually steel, for the transport and storage of pressurized gases. Such a bottle can have a volume of more than 100 liters. The nominal pressure can be several hundred bar.
In Flüssiggasflaschen befinden sich Gase wie zum Beispiel LPG in verflüssigter Form. Übliche Gase sind Ethan, Propan, Butan sowie Gemische davon. Diese Gase können bei Raumtemperatur durch vergleichsweise geringen Druck verflüssigt werden. Der Flüssiggasinhalt von solchen Flaschen liegt in der Regel zwischen 3 und 33 kg. Die Höhe von solchen Flüssiggasflaschen liegt meist zwischen 420 mm und 1290 mm. Der Flaschendurchmesser liegt typischerweise zwischen 200 mm und 318 mm.LPG cylinders contain gases such as LPG in liquefied form. Common gases are ethane, propane, butane and mixtures thereof. These gases can be liquefied at room temperature by comparatively low pressure. The liquid gas content of such bottles is usually between 3 and 33 kg. The height of such liquid gas cylinders is usually between 420 mm and 1290 mm. The bottle diameter is typically between 200 mm and 318 mm.
Flüssiggasflaschen werden mit einer Armatur verschlossen, an der sich, meist in Verbindung mit einem Druckminderer, eine passende Schlauchleitung zur kontrollierten Entnahme ihres Inhaltes anschrauben lässt. Des Weiteren befindet sich bei Flüssiggasflaschen in der Entnahmearmatur ein Sicherheitsventil, welches den zulässigen Überdruck in der Flasche auf zum Beispiel ca. 30 bar begrenzt, um ein Bersten zu verhindern.LPG cylinders are sealed with a fitting to which a suitable hose line can be screwed, usually in conjunction with a pressure reducer, for controlled removal of their contents. In addition, there is a safety valve in the extraction fitting for liquid gas cylinders, which limits the permissible overpressure in the cylinder to around 30 bar, for example, in order to prevent it from bursting.
Typischerweise weist eine Armatur einer solchen Flüssiggasflasche einen seitlichen Anschlussstutzen als Gashahn auf, der einerseits zum Auffüllen und andererseits zur Entnahme verwendet wird. An diesen Gashahn werden Leitungen sowohl im Fall der Entnahme als auch im Fall einer Wiederbefüllung manuell aufgeschraubt. Der seitliche Anschlussstutzen ist bei geöffnetem Gashahn mit einer Öffnung an der Unterseite der Armatur gasleitend verbunden. Diese Unterseite mit der Öffnung befindet sich oberhalb des Flüssigkeitsspiegels im aufgestellten Zustand einer Flüssiggasflasche. Bei einer Entnahme von Gas wird daher das Gas entnommen, welches sich oberhalb des Flüssigkeitsspiegels im gasförmigen Zustand befindet.Typically, a fitting of such a liquid gas bottle has a lateral connection piece as a gas tap, which is used on the one hand for filling and on the other hand for removal. Lines are manually screwed onto this gas tap both in the case of removal and in the case of refilling. When the gas tap is open, the side connection piece is connected to an opening on the underside of the fitting for gas conduction. This underside with the opening is above the liquid level when a liquid gas cylinder is in the upright position. When gas is removed, the gas that is in the gaseous state above the liquid level is therefore removed.
Flüssiggasflaschen werden für den Betrieb von Gasherden, Gaskochern, Gasgrills, Gasheizöfen oder Gasheizstrahlern eingesetzt. Ist der Inhalt einer Flüssiggasflasche verbraucht, so werden Flüssiggasflaschen vom Verbraucher an die Verkaufsstelle von Flüssiggasflaschen zwecks erneuter Auffüllung zurückgegeben. Nach einer solchen Rückgabe einer Flüssiggasflasche wird diese von der Verkaufsstelle zu einer zentralen Abfüllanlage bzw. Abfüllstation transportiert.LPG cylinders are used to operate gas stoves, gas cookers, gas grills, gas heaters or gas radiant heaters. Is the content of a liquid gas bottle used up, LPG cylinders are returned by the consumer to the point of sale of LPG cylinders for refilling. After such a return of a liquid gas bottle, it is transported from the point of sale to a central filling system or filling station.
Um eine Wiederbefüllung zu erleichtern, ist aus der Druckschrift
Es ist Aufgabe der Erfindung, den technischen Aufwand für ein Wiederbefüllen von Gasflaschen zu verringern.It is the object of the invention to reduce the technical outlay for refilling gas cylinders.
Die Aufgabe der Erfindung wird durch eine Armatur mit den Merkmalen des Hauptanspruchs gelöst. Vorteilhafte Ausgestaltungen ergeben sich aus den abhängigen Ansprüchen. Ein vorteilhaftes Verfahren für ein Wiederbefüllen umfasst die Merkmale des Nebenanspruchs.The object of the invention is achieved by a fitting with the features of the main claim. Advantageous configurations emerge from the dependent claims. An advantageous method for refilling includes the features of the independent claim.
Eine anspruchsgemäße Armatur umfasst zur Lösung der Aufgabe einen Gashahn für eine Gasentnahme und einer Öffnung für ein Wiederbefüllen einer Flüssiggasflasche. Die Öffnung für ein Wiederbefüllen einer Flüssiggasflasche kann insbesondere durch Öffnen eines Ventils mit einer schlauchförmigen oder rohrförmigen Leitung der Armatur gasleitend verbunden werden, die wenigstens 300 mm, vorzugsweise wenigstens 400 mm, in eine Flüssiggasflasche hineinreichen kann, wenn die Armatur mit einer solchen Gasflasche verbunden ist. Hierdurch wird erreicht, dass die Leitung in den verflüssigten Teil des Gases hineinreichen kann, was vor allem ein sehr schnelles Entleeren durch Abpumpen ermöglicht. Ein Entleeren ist geboten, wenn sich eine wiederbefüllte Gasflasche als undicht erweist. Es ergibt sich so ein Geschwindigkeitsvorteil.To solve the problem, a fitting according to the claims comprises a gas tap for removing gas and an opening for refilling a liquid gas bottle. The opening for refilling a liquid gas bottle can be connected in a gas-conducting manner, in particular by opening a valve, to a hose-shaped or tubular line of the fitting, which can extend at least 300 mm, preferably at least 400 mm, into a liquid gas bottle when the fitting is connected to such a gas bottle . This ensures that the line can reach into the liquefied part of the gas, which above all enables very rapid emptying by pumping. Emptying is required if a refilled gas cylinder is found to be leaking. This results in a speed advantage.
Grundsätzlich gibt es eine Öffnung an der Unterseite der Armatur benachbart zur schlauchförmigen oder rohrförmigen Leitung. Die Unterseite ist die Seite, die an die Flüssiggasflasche angrenzt bzw. sich vollständig in der Flasche oder im Flaschenhals befindet, wenn die Armatur mit einer Flüssiggasflasche verbunden ist. Diese Öffnung an der Unterseite kann mit dem Gashahn gasleitend verbunden werden, und zwar in der Regel durch Drehen eines entsprechenden Drehgriffs. Die schlauchförmige oder rohrförmige Leitung steht gegenüber dieser Öffnung vor und zwar vorzugsweise wenigstens um 200 mm, besonders bevorzugt wenigstens um 300 mm.Basically, there is an opening at the bottom of the fitting adjacent to the hose or pipe. The bottom is the side that is adjacent to the LPG cylinder or is fully within the cylinder or in the neck of the cylinder when the fitting is connected to an LPG cylinder. This opening on the underside can be connected to the gas tap to conduct gas, usually by turning a corresponding rotary handle. The hose-shaped or tubular line protrudes from this opening, preferably by at least 200 mm, particularly preferably by at least 300 mm.
Hierdurch wird erreicht, dass Gas oberhalb des Flüssigkeitsspiegels über den Gashahn entnommen werden kann und damit sofort in der Form vorliegt, in der das Gas im Falle eines Verbrauchs benötigt wird.This ensures that gas above the liquid level can be removed via the gas tap and is therefore immediately available in the form in which the gas is required in the event of consumption.
Die schlauchförmige bzw. rohrförmige Leitung ist daher vorzugsweise so lang, dass diese bis zum Grund einer mit der Armatur verbundenen Gasflasche reicht. In der Regel ist daher diese Leitung nicht länger als 1290 mm.The hose-shaped or tubular line is therefore preferably so long that it extends to the bottom of a gas bottle connected to the fitting. As a rule, this line is therefore no longer than 1290 mm.
Die Öffnung für ein Wiederbefüllen der Flüssiggasflasche ist vorteilhaft an der Oberseite der Armatur angeordnet. Dies erleichtert ein Wiederbefüllen, da eine Flüssiggasflasche nicht für ein Wiederbefüllen ausgerichtet werden muss. Insbesondere ist so mit geringem technischen Aufwand ein automatisches Wiederbefüllen in einer automatisierten Abfüllstation möglich.The opening for refilling the liquid gas bottle is advantageously located on the top of the fitting. This makes refilling easier as a LPG cylinder does not have to be oriented for refilling. In particular, automatic refilling in an automated filling station is possible with little technical effort.
Der Gashahn, über den das Gas zwecks Verbrauch entnommen wird, steht vorzugsweise seitlich von der Armatur ab. Durch einen Drehgriff bzw. Handrad kann der Gashahn vorzugsweise geöffnet und geschlossen werden. Das Handrad ist vorteilhaft um die Zuführung für ein Wiederbefüllen herum angeordnet. Über das Handrad wird zum Beispiel eine Mutter mit Spindel betätigt und zwar derart, dass ein dafür vorgesehener Körper hoch und runter bewegt werden kann. Hierdurch wird der Gashahn geöffnet oder geschlossen.The gas tap, via which the gas is removed for consumption, preferably protrudes laterally from the fitting. The gas tap can preferably be opened and closed by means of a rotary handle or handwheel. The handwheel is advantageously placed around the feeder for refilling. A nut with a spindle, for example, is actuated via the handwheel in such a way that a body provided for this purpose can be moved up and down. This opens or closes the gas valve.
Die Öffnung für ein Wiederbefüllen einer Flüssiggasflasche kann in einer Ausgestaltung durch ein Ventil geöffnet und geschlossen werden. Dies erleichtert und beschleunigt ein Wiederbefüllen, da ein Flüssigkeitsdruck genügen kann, um das Ventil für ein Wiederbefüllen zu öffnen.In one embodiment, the opening for refilling a liquid gas bottle can be opened and closed by a valve. This facilitates and speeds up refilling since liquid pressure can be enough to open the valve for refilling.
Das Ventil umfasst vorzugsweise einen Ventilkörper, der durch eine vorgespannte Feder in seine geschlossene Ventilstellung gedrückt wird. Dies trägt dazu bei, allein durch einen Flüssigkeitsdruck das Ventil für ein Wiederbefüllen öffnen zu können. Außerdem wird eine Entleerung durch Abpumpen erleichtert, da das Ventil durch einen Stutzen oder einen Dorn eines Absaugkopfes dadurch geöffnet werden kann, in dem der Absaugkopf mit der dafür vorgesehenen Öffnung verbunden wird. Im Anschluss daran kann sofort abgesaugt werden, was eine automatisierte Wiederbefüllung möglich macht, die selbst durch einen Endverbraucher unter Berücksichtigung eines dann erforderlichen erhöhten Sicherheitsaufwands vorgenommen werden kann.The valve preferably comprises a valve body which is urged into its closed valve position by a preloaded spring. This contributes to being able to open the valve for refilling solely by means of liquid pressure. In addition, emptying by pumping is facilitated since the valve can be opened through a nozzle or mandrel of a suction head by connecting the suction head to the opening provided for this purpose. Following this, it can be sucked off immediately, which makes automated refilling possible, which can be carried out even by an end user, taking into account the increased safety effort then required.
Der Ventilkörper ist vorzugsweise ein Hohlzylinder ist, der seitliche Öffnungen umfasst. Der Ventilkörper kann dann vorteilhaft ein Teil der Leitung sein, über die Flüssigkeitsgas in die Flasche für ein Wiederbefüllen hineingeleitet wird oder über die Flüssigkeitsgas für ein Entleeren abgesaugt wird.The valve body is preferably a hollow cylinder that includes lateral openings. The valve body can then advantageously be part of the line via which liquid gas is fed into the bottle for refilling or via which liquid gas is sucked off for emptying.
Der Ventilkörper ist vorzugsweise mit einem umlaufenden, austauschbaren Dichtring versehen, der das Ventil im geschlossenen Zustand flüssigkeits- und gasdicht verschließt. Im Fall einer Undichtigkeit genügt in der Regel der Austausch des Dichtrings, um die Funktionstüchtigkeit der Armatur wieder herzustellen.The valve body is preferably provided with a circumferential, replaceable sealing ring which seals the valve in a liquid-tight and gas-tight manner when it is closed. In the event of a leak, replacing the sealing ring is usually sufficient to restore the functionality of the valve.
Der Dichtring ist in einer vorteilhaften Ausgestaltung im geschlossenen Zustand des Ventils gegen einen konusförmigen Übergang gepresst, der einen rohrförmigen Abschnitt mit einem dem gegenüber verbreiterten rohrförmigen Abschnitt verbindet. Diese Ausgestaltung ermöglicht es, die beiden rohrförmigen Abschnitte als Zuleitung zu verwenden, um so kompakt mit geringem technischen Aufwand herstellen zu können.In an advantageous embodiment, when the valve is in the closed state, the sealing ring is pressed against a cone-shaped transition which connects a tubular section with a tubular section which is widened in relation to it. This configuration makes it possible to use the two tubular sections as a supply line, so that it can be produced in a compact manner with little technical effort.
In einer Ausgestaltung ist ein Schließelement, insbesondere in der Form eines hohlzylinderförmigen Abschnitts, vorhanden, welches eine gasleitende Verbindung zwischen dem Gashahn und der Öffnung an der Unterseite der Armatur, in die Gas einer angeschlossenen Flüssiggasflasche hineinströmen kann, unterbricht, wenn der Ventilkörper in seine geöffnete Stellung bewegt wird. Hierdurch wird im Fall einer Entleerung durch Abpumpen erreicht, dass Flüssigkeit abgepumpt wird und nicht etwa Gas, was die Entleerung verzögern würde.In one embodiment, there is a closing element, in particular in the form of a hollow-cylindrical section, which interrupts a gas-conducting connection between the gas tap and the opening on the underside of the fitting, into which gas from a connected liquid gas bottle can flow, when the valve body is in its open position position is moved. In this way, in the case of emptying by pumping, liquid is pumped out and not gas, which would delay emptying.
Der hohlzylinderförmige Abschnitt ist vorzugsweise ein Abschnitt der Leitung, die den Gashahn mit einer Öffnung an der Unterseite der Armatur verbindet, in die Gas einer angeschlossenen Flüssiggasflasche hineinströmen kann. Dies verringert den technischen Aufwand einer Herstellung und ermöglicht ebenfalls eine kompakte Bauweise.The hollow-cylindrical section is preferably a section of the line that connects the gas tap to an opening on the underside of the fitting, into which gas from a connected liquid gas bottle can flow. This reduces the technical complexity of production and also enables a compact design.
Die Öffnung für ein Wiederbefüllen einer Flüssiggasflasche ist vorzugsweise trichterförmig, um ein Verbinden mit einem Befüllungskopf oder Absaugkopf durch Zentrierung zu erleichtern.The opening for refilling a liquid gas bottle is preferably funnel-shaped in order to facilitate connection to a filling head or suction head by centering.
Vorteilhaft ist die Armatur so konstruiert, dass entweder Gas über den Gashahn entnommen werden kann oder aber eine Wiederbefüllung oder Entleerung über die dafür vorgesehene Öffnung erfolgen kann. Es kann dann nicht gleichzeitig wiederbefüllt werden und zugleich über den Gashahn Gas entnommen werden. Dies vermeidet Risiken während einer Gasentnahme oder während eines Wiederbefüllens.The fitting is advantageously constructed in such a way that either gas can be removed via the gas tap or it can be refilled or emptied via the opening provided for this purpose. It can then not be refilled at the same time and at the same time gas can be drawn off via the gas tap. This avoids risks during gas sampling or refilling.
In einer Ausgestaltung der Erfindung gibt es eine weitere Gasentnahmemöglichkeit vorzugsweise über eine Schnellkopplung. An diese weitere Gasentnahmemöglichkeit kann zum Beispiel ein Schlauch angeschlossen werden und zwar zur dauerhaften, grundsätzlich nicht regulierbaren Gasentnahme. Diese zusätzliche Gasentnahmemöglichkeit ist für Ballonfahrer vorgesehen, um eine Flamme dauerhaft mit Gas versorgen zu können. Diese Flamme dient beispielsweise als Zündflamme. Diese Flamme benötigt grundsätzlich nur wenig Gas. Es wird so z. B. verhindert, dass übermäßig viel Gas durch ein zu weit aufgedrehtes Handrad für die Zündflamme verbraucht werden kann. Ist eine Schnellkopplung vorgesehen, so kann die Gasentnahme nur durch Anschließen eines entsprechenden Kupplungsstücks ermöglicht werden. Ein versehentliches Öffnen wird so verhindert.In one embodiment of the invention, there is a further gas removal option, preferably via a quick coupling. A hose, for example, can be connected to this further gas extraction option, specifically for permanent, generally non-adjustable gas extraction. This additional gas extraction option is intended for balloonists in order to be able to permanently supply a flame with gas. This flame serves as an ignition flame, for example. This flame basically requires little gas. It will be e.g. B. prevents that too much gas can be consumed by turning the hand wheel for the pilot flame too far. If a quick coupling is provided, the gas extraction can only be made possible by connecting an appropriate coupling piece. This prevents accidental opening.
In einer Ausgestaltung gibt es eine Berstsicherung, die bei übermäßig hohem Innendruck zerstört wird, um so Gas kontrolliert austreten zu lassen und so einen zu hohen Innendruck zu reduzieren.In one embodiment, there is a bursting safety device which is destroyed if the internal pressure is excessively high, in order to allow gas to escape in a controlled manner and thus to reduce an excessively high internal pressure.
Nachfolgend wird die Erfindung anhand von Figuren näher erläutert.The invention is explained in more detail below with reference to figures.
Es zeigen:
- Figur 1:
- Armatur mit geschlossenem Gashahn und geschlossenem Ventil;
- Figur 2:
- Armatur mit geschlossenem Gashahn und geöffnetem Ventil;
- Figur 3:
- Armatur mit geschlossenem Gashahn und geöffnetem Ventil;
- Figur 4:
- Armatur mit geöffnetem Gashahn und geschlossenem Ventil;
- Figur 5:
- Armatur in einer dreidimensionalen Darstellung.
- Figure 1:
- Fitting with closed gas tap and closed valve;
- Figure 2:
- Fitting with closed gas tap and open valve;
- Figure 3:
- Fitting with closed gas tap and open valve;
- Figure 4:
- fitting with open gas tap and closed valve;
- Figure 5:
- Fitting in a three-dimensional representation.
Die
Zusätzlich zu dem seitlich abstehenden Stutzen 2 gibt es an der Oberseite eine trichterförmige Öffnung 3 in die Armatur 1 hinein. Die nach oben führende trichterförmige Öffnung 3 dient als zentrische Befüllungs- und Absaugstelle. Für ein Befüllen oder Absaugen wird die trichterförmige Einmündung bzw. Öffnung 3 mit einem Befüllungskopf oder Absaugkopf einer Gasabfüllstation verbunden.In addition to the laterally protruding
Ein von außen zugänglicher oberer Bereich der Außenwand der zentrischen Befüllungsstelle weist zwei umlaufende Rillen 4 auf, um ein formschlüssiges Umklammern mit komplementär geformten Greifern eines Befüllungskopfes oder Absaugkopfes zu ermöglichen. Es kann so während des Befüllens oder während des Absaugens von Gas eine formschlüssige Verbindung zwischen der Außenwand mit den Rillen 4 und einem Absaugkopf oder Befüllungskopf geschaffen werden, um ein unplanmäßiges Lösen eines Kopfes während des Füllens oder Entleerens einer Gasflasche zu verhindern.An upper area of the outer wall of the central filling point that is accessible from the outside has two
Um eine dichte Verbindung während des Füllens oder Entleerens zu gewährleisten, wird ein Dichtring 5 durch eine entsprechende umlaufende Rille in der trichterförmige Öffnung 3 gehalten. Ein Befüllungskopf bzw. Absaugkopf wird während des Füllens oder Entleerens gegen diesen Dichtring 5 gepresst.In order to ensure a tight connection during filling or emptying, a sealing
Ein hohlzylinderförmiger Ventilkörper 6 weist in einem unteren Bereich einen Dichtring 7 auf, der in einer entsprechenden umlaufenden Nut des Ventilkörpers 6 gehalten wird. Durch eine Feder 8 wird der Ventilkörper 6 in Richtung der Öffnung 4 vorgespannt. Hierdurch wird der Dichtring 7 gegen einen konusförmigen Übergang 9 für ein Verschließen des Ventils gepresst. Der Zugang über die Öffnung 4 in die Armatur 1 hinein ist dann, wie in der
Der Ventilkörper 6 befindet sich im geschlossenen Zustand des Ventils wie in der
Die Feder 8 befindet sich in einem demgegenüber verbreiterten rohrförmigen Abschnitt 10. Der rohrförmige Abschnitt 10 wird durch den konusförmigen Übergang 9 mit einem im Vergleich dazu verbreiterten rohrförmigen Abschnitt 11 verbunden. Der Innendurchmesser des verbreiterten Abschnitts 11 ist geringfügig größer als der Durchmesser der Feder 8. Der verbreiterte Abschnitt 11 dient daher u. a. dem Halt und der Führung der Feder 8, wenn diese für ein Öffnen des Ventils weiter gespannt wird.The
Der hohlzylinderförmige Ventilkörper 6 ist am unteren Ende mit einem Stab 12 verschlossen. Der Stab 12 erstreckt sich in einen Zylinder 13 hinein. Der Innendurchmesser des Zylinders 13 ist größer als der Außendurchmesser des Stabs 12, so dass ein Freiraum 14 zwischen dem Zylinder 13 und dem Stab 12 verbleibt.The hollow-
Das dem Stab 12 gegenüberliegende Ende des hohlzylinderförmigen Ventilkörpers 6 ist offen. Darüber hinaus weist der Ventilkörper 6 in der Nähe des Stabs 12 seitliche Öffnungen 15 auf, die mit seinem Innenraum gasleitend verbunden sind bzw. in seinen Innenraum hineinführen. Wird der Ventilkörper 6 durch einen Flüssigkeitsdruck oder aber mechanisch nach unten gedrückt, bis die seitliche Öffnungen 15 in den verbreiterten Abschnitt 11 hinein gelangen, so ist das Ventil geöffnet. Den geöffneten Zustand des Ventils zeigen die
Um den seitlichen Stutzen 2 zu öffnen und zu verschließen, gibt es einen Drehgriff 16, auch Handrad genannt. Durch entsprechendes Drehen des Drehgriffs bzw. Handrads 16 kann der Zylinder 13 zwischen einer Schließstellung und einer Offenstellung hin und zurück bewegt werden. Die
Der Zylinder 13 ist durch Dichtringe 19 gegenüber einem Abschnitt 21 der Gehäusewand der Armatur 1 abgedichtet. Darüber hinaus ist Zylinder 13 durch Dichtringe 20 gegenüber einem zylinderförmigen unteren Abschnitt 22 des Drehgriffs 16 abgedichtet. Die Dichtringe 19 und 20 verhindern einen Gasaustritt aus der Armatur heraus.The
Der Drehgriff 16 ist durch eine Kugellagerung 23 drehbar gehalten. Eine Kappe 24 ist auf dem Gehäuseabschnitt 21 aufgeschraubt, um so den Drehgriff 16 mit dem Gehäuseabschnitt 21 drehbar zu verbinden.The rotary handle 16 is rotatably held by a
Die Armatur 1 weist an der Unterseite zwei Öffnungen 25 und 26 auf (siehe insbesondere auch die dreidimensionale Darstellung der
Die Öffnung 25 befindet sich am unteren Ende einer schlauchförmigen bzw. rohrförmigen Leitung 27 am Grund einer entsprechend angeschlossenen Gasflasche. Über diese Öffnung 25 wird die Gasflasche im Anschluss an ein Öffnen des Ventils mit dem Ventilkörper 6 mit Gas befüllt oder Flüssiggas abgesaugt. Über die andere Öffnung 26 erfolgt die Entnahme von Gas aus der Flasche für einen Verbrauch durch einen an den Gashahn 2 angeschlossenen Verbraucher und zwar im Anschluss an ein Öffnen des Gashahns durch entsprechendes Drehen des Drehgriffs 16.The
Die Öffnung 26 ist gasleitend mit einer inneren Öffnung 28 verbunden.The
An das untere Ende des Stabes 12 schließt sich ein damit verbundener hohlzylinderförmiger Abschnitt 29 an, der im Übergangsbereich zwischen Stab 12 und Abschnitt 29 mit einer Öffnung 30 versehen ist. Wird der Ventilkörper 6 nach unten gedrückt, so wird der hohlzylinderförmige Abschnitt 29 gegen einen Dichtring 31 gepresst, der sich am unteren Ende einer Führung 32 befindet.The lower end of the
Die
Die
Die
Für ein Absaugen oder Entleeren wird der Ventilkörper 6 mechanisch durch einen Dorn oder Stutzen eines auf den Trichter 3 aufgesetzten Absaugkopfes nach unten gedrückt. Im Anschluss daran kann Flüssiggas abgesaugt werden und zwar gemäß den Pfeilen 39 bis 43, wie in der
Die
Durch eine solche Armatur wird in einer entsprechenden Ausgestaltung insbesondere vorteilhaft erreicht, dass entweder Gas über den Gashahn entnommen werden kann oder aber eine Wiederbefüllung oder Entleerung über die zentrische Öffnung 3 erfolgen kann. Es kann dann nicht gleichzeitig wieder befüllt werden und über den Gashahn Gas entnommen werden.In a corresponding embodiment, such a fitting is particularly advantageous in that either gas can be removed via the gas tap or refilling or emptying can take place via the
Das Verfahren für ein Wiederbefüllen sieht auch ein Entleeren vor für den Fall, dass eine Gasundichtigkeit festgestellt wird. Gerade das Entleeren kann besonders schnell erfolgen, da Flüssigkeit abgepumpt wird und nicht Gas.The procedure for refilling also provides for emptying in the event that a gas leak is detected. Emptying can take place particularly quickly, since liquid is pumped out and not gas.
Claims (13)
- Method for a refilling of a liquid gas bottle with a fitting in a filling station, wherein the fitting is provided with a gas tap (2) for a gas withdrawal and an opening (3) for a refilling of a liquid gas bottle, wherein the opening (3) for a refilling of the liquid gas bottle can be connected to a hose-shaped or tube-shaped line (27) of the fitting, which can extend at least 300 mm, preferably at least 400 mm into the liquid gas bottle, comprising the steps of• a filling head of the filling station is connected to the opening (3) for a refilling,• thereafter the filling station fills the gas bottle with liquid gas,• following the filling, the filling station checks for gas escaping from the gas bottle,• if the check shows that no gas escapes from the gas bottle, the refilled gas bottle is removed from the filling station,• if the check shows that gas is escaping from the bottle, the filling station empties the gas bottle by pumping out through the opening which is provided for refilling.
- Method according to claim 1, characterized in that the opening (3) for a refilling is located on the upper side of the fitting.
- Method according to one of the preceding claims, characterized in that the gas tap (2) protrudes laterally from the fitting (1).
- Method according to the preceding claim, characterized in that the gas tap (2) can be opened and closed by a handwheel (16).
- Method according to the preceding claim, characterized in that the fitting is provided with a feed for a refilling and the handwheel (16) is arranged around said feed for a refilling.
- Method according to one of the preceding claims, characterized in that the opening (3) for a refilling of the liquid gas bottle can be opened and closed by a valve.
- Fitting for a liquid gas bottle with a gas tap (2) for a gas withdrawal and an opening (3) for a refilling of a liquid gas bottle, wherein the opening (3) for a refilling of a liquid gas bottle can be connected in a gas-conducting manner to a hose-shaped or tube-shaped line (27) of the fitting, which can extend at least 300 mm, preferably at least 400 mm, into a liquid gas bottle, wherein the opening (3) for a refilling of a liquid gas bottle can be opened and closed by a valve, characterized in that the gas tap can be opened and closed by a rotary handle (16) and in that the valve comprises a valve body (6) which is pressed into its closed valve position by a prestressed spring (8) in such a way that the valve can be opened by a spigot or a mandrel of a suction head.
- Fitting according to the preceding claim, characterized by an opening (26) on the underside of the fitting adjacent to the hose-shaped or tube-shaped line which can be connected to the gas tap (2) in a gas-conducting manner, wherein the hose-shaped or tube-shaped line (27) projects with respect to the opening, preferably by at least 200 mm, more preferably by at least 300 mm.
- Fitting according to the preceding claim, characterized in that the opening (3) for a refilling of the liquid gas bottle is arranged on the upper side of the fitting (1).
- Fitting according to either of the two preceding claims, characterized in that the gas tap (2) protrudes laterally from the fitting (1).
- Fitting according to either of the preceding claims 7 to 10, characterized in that the rotary handle is a handwheel (16).
- Fitting according to the preceding claim, characterized in that the handwheel (16) is arranged around a feed for a refilling.
-
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14192891.1A EP3021034B1 (en) | 2014-11-12 | 2014-11-12 | Fitting for liquefied gas bottles and filling method |
PCT/EP2015/074950 WO2016074923A1 (en) | 2014-11-12 | 2015-10-28 | Fitting for liquid gas cylinders and filling method |
EP15797869.3A EP3218642B1 (en) | 2014-11-12 | 2015-10-28 | Fitting for liquefied gas bottles and filling method |
Related Parent Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2015/074950 Previously-Filed-Application WO2016074923A1 (en) | 2014-11-12 | 2015-10-28 | Fitting for liquid gas cylinders and filling method |
EP15797869.3A Division EP3218642B1 (en) | 2014-11-12 | 2015-10-28 | Fitting for liquefied gas bottles and filling method |
Publications (4)
Publication Number | Publication Date |
---|---|
EP3660381A1 EP3660381A1 (en) | 2020-06-03 |
EP3660381C0 EP3660381C0 (en) | 2023-08-30 |
EP3660381B1 true EP3660381B1 (en) | 2023-08-30 |
EP3660381B9 EP3660381B9 (en) | 2023-10-18 |
Family
ID=51897157
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14192891.1A Active EP3021034B1 (en) | 2014-11-12 | 2014-11-12 | Fitting for liquefied gas bottles and filling method |
EP15797869.3A Active EP3218642B1 (en) | 2014-11-12 | 2015-10-28 | Fitting for liquefied gas bottles and filling method |
EP19210220.0A Active EP3660381B9 (en) | 2014-11-12 | 2015-10-28 | Fitting for liquefied gas bottles and filling method |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14192891.1A Active EP3021034B1 (en) | 2014-11-12 | 2014-11-12 | Fitting for liquefied gas bottles and filling method |
EP15797869.3A Active EP3218642B1 (en) | 2014-11-12 | 2015-10-28 | Fitting for liquefied gas bottles and filling method |
Country Status (23)
Country | Link |
---|---|
US (1) | US10738945B2 (en) |
EP (3) | EP3021034B1 (en) |
JP (1) | JP6612341B2 (en) |
KR (1) | KR102440912B1 (en) |
CN (1) | CN107002946B (en) |
AU (1) | AU2015345387B2 (en) |
CA (1) | CA2964439C (en) |
DK (1) | DK3218642T3 (en) |
EA (1) | EA033994B1 (en) |
ES (1) | ES2773443T3 (en) |
HK (1) | HK1224357A1 (en) |
HR (1) | HRP20200242T1 (en) |
HU (1) | HUE047970T2 (en) |
MA (2) | MA40947B1 (en) |
ME (1) | ME03634B (en) |
MX (1) | MX2017006187A (en) |
PL (1) | PL3218642T3 (en) |
PT (1) | PT3218642T (en) |
RS (1) | RS59947B1 (en) |
SI (1) | SI3218642T1 (en) |
TN (1) | TN2017000132A1 (en) |
WO (1) | WO2016074923A1 (en) |
ZA (1) | ZA201702728B (en) |
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CN114517888B (en) * | 2022-03-09 | 2024-06-21 | 浙江工业大学 | Self-enhancement technology of station hydrogen storage cylinder based on self-enhancement theory |
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-
2014
- 2014-11-12 EP EP14192891.1A patent/EP3021034B1/en active Active
-
2015
- 2015-10-28 MA MA40947A patent/MA40947B1/en unknown
- 2015-10-28 PT PT157978693T patent/PT3218642T/en unknown
- 2015-10-28 MX MX2017006187A patent/MX2017006187A/en unknown
- 2015-10-28 TN TN2017000132A patent/TN2017000132A1/en unknown
- 2015-10-28 EA EA201790955A patent/EA033994B1/en unknown
- 2015-10-28 AU AU2015345387A patent/AU2015345387B2/en active Active
- 2015-10-28 HU HUE15797869A patent/HUE047970T2/en unknown
- 2015-10-28 ME MEP-2020-35A patent/ME03634B/en unknown
- 2015-10-28 PL PL15797869T patent/PL3218642T3/en unknown
- 2015-10-28 CA CA2964439A patent/CA2964439C/en active Active
- 2015-10-28 EP EP15797869.3A patent/EP3218642B1/en active Active
- 2015-10-28 KR KR1020177016058A patent/KR102440912B1/en active IP Right Grant
- 2015-10-28 MA MA052406A patent/MA52406A/en unknown
- 2015-10-28 WO PCT/EP2015/074950 patent/WO2016074923A1/en active Application Filing
- 2015-10-28 DK DK15797869.3T patent/DK3218642T3/en active
- 2015-10-28 CN CN201580061232.0A patent/CN107002946B/en active Active
- 2015-10-28 RS RS20200167A patent/RS59947B1/en unknown
- 2015-10-28 US US15/526,569 patent/US10738945B2/en active Active
- 2015-10-28 JP JP2017525523A patent/JP6612341B2/en not_active Expired - Fee Related
- 2015-10-28 SI SI201531083T patent/SI3218642T1/en unknown
- 2015-10-28 EP EP19210220.0A patent/EP3660381B9/en active Active
- 2015-10-28 ES ES15797869T patent/ES2773443T3/en active Active
-
2016
- 2016-11-02 HK HK16112626.9A patent/HK1224357A1/en not_active IP Right Cessation
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2017
- 2017-04-18 ZA ZA2017/02728A patent/ZA201702728B/en unknown
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2020
- 2020-02-13 HR HRP20200242TT patent/HRP20200242T1/en unknown
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