CN1034365C

CN1034365C - Gas cylinder

Info

Publication number: CN1034365C
Application number: CN 92109243
Authority: CN
Inventors: 水野勉
Original assignee: Iwatani Sangyo KK
Current assignee: Iwatani Corp
Priority date: 1992-08-08
Filing date: 1992-08-08
Publication date: 1997-03-26
Anticipated expiration: 2007-08-08
Also published as: CN1082161A

Abstract

Non-woven fabric (31), the horizontal cross section of which is annular, is arranged on the inner side of a pressure resisting wall (11) of a gas tank (2) which is suitable for storing liquefied petroleum gas (19). The outer surface (34) of the non-woven fabric (31) is kept contacting the upper part of the inner surface (20) of the pressure resisting wall (11). The lower part (33) of the non-woven fabric (31) upward sucks the liquefied petroleum gas (19) in a liquid phase part (25) by the capillarity, so the liquefied petroleum gas which is sucked up can be kept contacting the upper part of the inner surface (20) of the pressure resisting wall (11).

Description

Gas tank

The present invention relates to be suitable for the gas tank of storage liquid liquefied oil gas, specifically, relate to the portable steam stove of occasion uses such as camping, the propellant bottle of portable burner such as portable gas lamp.

Generally speaking, the structure of this portable burner can be taken out the petroleum gas of liquefied petroleum gas (LPG) volatilization and make its burning in the propellant bottle pressure wall.In order to safeguard its long-time smooth combustion, must be continuously provide certain heat as the latent heat of vaporization, so that quicken the gasification of liquid gas to the liquid phase part of liquefied petroleum gas (LPG).

The conventional fuel tube is suitable for accepting heat by pressure wall and is used as the latent heat of vaporization.

In this case, the consumption of petroleum gas reduces the liquefied petroleum tolerance of staying in the propellant bottle, thereby the area of contact of liquid phase part and pressure wall is also reducing, so, for common propellant bottle, along with liquefied petroleum tolerance minimizing wherein, the speed of gasification is more and more lower.Therefore the problem of conventional fuel tube existence is, the burning meeting that the fuel device of conventional fuel tube is housed becomes unstable owing to lacking the gas supply.Because the propellant bottle size is more little, the liquefied petroleum gas (LPG) reserves are corresponding more little with the ratio of its consumption rate, thereby problem gets over seriously.

A kind of container of splendid attire LFG body is disclosed among the patent documentation FR-A-860467, this container has respectively the pressure wall that contacts with liquid phase part with the gas phase part of liquid gas, tablet as last suction device is attached on the pressure wall internal surface of container, the bottom of tablet extends the low district of the lower surface of pressure wall, enters in the liquid phase.But the liquid phase of the last imbibition gasification of this container makes the effect of its gasification await further to improve.

The object of the present invention is to provide a kind of liquid phase that can go up the imbibition liquefied oil gas better, make the gas tank of its storage liquid liquefied oil gas that gasifies more by capillarity.

To achieve these goals, have pressure wall according to a kind of gas tank of the present invention, it comprises and keeping and the contacted lower inner surface of liquid phase part of liquefied petroleum gas (LPG) and the contacted upper inside surface of gas phase part of maintenance and liquefied petroleum gas (LPG); And going up of upwards inhaling of the liquefied petroleum gas (LPG) in the described liquid phase part inhaled device by capillarity, and described going up inhaled device and had outer surface and bottom, and does slabbing, and described outer surface is placed in the face of the upper inside surface of described pressure wall; Wherein, a described part of go up inhaling the bottom of device extends the low district of the lower inner surface of described pressure wall downwards, it is characterized in that: the very little gap of inhaling imbibition liquefied oil gas on being shaped on by capillarity between the internal surface of the outer surface of device and described pressure wall on described.

Said structure has following effect.

When consuming petroleum gas, because the liquid gas that is deposited in the gas tank is reducing, because the liquid gas of capillarity liquid phase part upwards is drawn to its top from the bottom of last suction device, outer surface from the top of last suction device makes liquid gas contact with the upper inside surface of pressure wall then, so that gasify by the heat by its upper inside surface supply.

Therefore, though the liquefied petroleum gas (LPG) that is deposited in the gas tank reduces, still can quicken the gasification of liquid phase part, thereby can provide petroleum gas continuously, sufficiently to burner, like this, burner just can continue long-time smooth combustion.

In addition, because last suction device is done slabbing, this has just prevented to reduce because of the existence of last suction device the reserves of gas tank, thereby can store the gas of requirement in gas tank.

Particularly in the present invention, inhale the very little gap of imbibition liquefied oil gas on being shaped on by capillarity between the internal surface of the outer surface of device and described pressure wall on described, therefore, can go up the liquid phase of imbibition liquefied oil gas better, it is gasified more.

Contrast following accompanying drawing, read following detailed description, can understand the present invention more clear, exactly preferred embodiment of the present invention.

Fig. 1 is the stereogram according to the gas tank of one embodiment of the invention, and partly cut-away is with the expression internal structure;

Fig. 2 is the partial enlarged drawing of Fig. 1.

As illustrated in fig. 1 and 2, propellant bottle 2 has following structure.

Pressure wall 11 has upper wall 12, barrel 13 and diapire 14, and upper wall 12 and barrel 13 are integrally formed.Outlet nozzle 4 is fixed on the middle body of upper wall 12, and the bottom surface of gas burner (not shown) is directly facing to upper wall 12.When the entry nozzle of gas burner was spun on the connecting thread (not shown) of outlet nozzle 4 by screw thread, the valve 17 that is positioned at the connecting thread part was opened, and petroleum gas can be taken out from combustion barrel 2.

Consisting of of the liquefied petroleum gas (LPG) 19 that in pressure wall 11, stores: the normal butane of the propane of about 30% weight and about 70% weight.The internal surface 20 of pressure wall 11 comprises lower inner surface 21 and upper inside surface 27.Lower surface 21 comprises that the liquid phase part 25 of liquefied petroleum gas (LPG) 19 contacts with lower inner surface 21 under the internal surface 23 of the internal surface 22 of diapire 14 and barrel 13.Upper inside surface 27 comprises that the gas phase part 29 of liquefied petroleum gas (LPG) 19 contacts with upper inside surface 27 on the internal surface (not shown) and barrel 13 internal surfaces 23 of upper wall 12.

Sheet nonwovens 31 is placed on the inboard of pressure wall 11.The unit weight of nonwovens 31 is about 80g/m ², the hemisphere shelly is made on its top 32, and its underpart 33 is a tubular.In addition, the lower end 33 of nonwovens 31 stretches to downwards and is close in diapire 14.

As shown in Figure 1, because the liquefied petroleum gas (LPG) that the area of contact that the liquid phase part 25 of liquefied petroleum gas (LPG) 19 and pressure wall are 11 is retained in propellant bottle 2 is big for a long time, thereby have more heat to reach liquid phase part 25 from pressure wall 11, therefore quickened the gasification of liquid phase part 25.

The liquefied petroleum gas (LPG) of retaining in propellant bottle 2 is used more after a little while more, and the liquefied petroleum gas (LPG) in the liquid phase part 25 is because capillarity upwards is drawn to the position of the liquid level L that is higher than liquid phase part 25 from the bottom 33 of nonwovens 31.In addition, nonwovens 31 can be fixed on the internal surface (not shown) of upper wall 12 easily by binder.

Carry one in passing because just enough as long as liquid phase part 25 is immersed in the lower end of the bottom 33 of nonwovens 31, even thereby between the internal surface 23 of barrel 13 and nonwovens 31 bottoms 33, big gap is arranged, do not have obstruction yet.

On vertical between the outer surface 34 of the barrel 13 of pressure wall 11 and nonwovens 31, be provided with very little gap 41.As long as gap 41 can be just enough by the capillarity imbibition liquefied oil gas that makes progress, in planimetric map, gap 41 can be ringwise, or upwards be divided into many sections week.

Because the liquid phase part 25 of liquefied petroleum gas (LPG) 10 is suitable for upwards being drawn to the position higher than the liquid level L of liquid phase part 25 by both capillarities of nonwovens 31 and very little gap 41, therefore, the liquefied petroleum gas (LPG) that drinks up can keep in touch with the wideer zone of pressure wall 11 internal surfaces 20.

Remove that nonwovens is outer to make progress by capillarity that to inhale device 31 can be textile cloth also to going up of imbibition liquefied oil gas, have the porous member such as plastics of the foam that is interconnected in a large number or the composition of hollow fiber and fibre object.

As long as it is just enough that liquid phase part 25 is immersed in the lower region of stretching into the lower inner surface 21 of pressure wall 11 downwards owing to the part that will go up the bottom 33 of inhaling device 31.Therefore slivering, band shape can be done in bottom 33.

In addition, inhaling the top 32 of device 31 on can perhaps only place in the face of a part of top of barrel 13 internal surfaces 23 only in the face of a part of internal surface 28 placements of upper wall 12.

The proportions of ingredients of propane and normal butane also can be different from mentioned abovely in the liquefied petroleum gas (LPG) 19, and liquefied petroleum gas (LPG) 19 can be used pure propane or pure butane, also can use the liquefied petroleum gas (LPG) of other kind.

Propellant bottle 2 can not resemble mentioned above to use the vertical position, also can transverse presentation use.

Many different embodiments of the present invention understand for those skilled in the art, some of them are described hereinbefore or are mentioned, but these specific embodiments be used to describe and be not to define to of the present invention, obviously can make many variations and improvement and not exceed described scope of the present invention of claims and essence it.

Claims

1. a gas tank has:

Pressure wall (11), it comprises and keeping and the contacted lower inner surface of liquid phase part (25) (21) of liquefied petroleum gas (LPG) (19) and gas phase part (29) contacted upper inside surface (27) of maintenance and liquefied petroleum gas (LPG) (19); And

By capillarity going up of upwards inhaling of the liquefied petroleum gas (LPG) in the described liquid phase part (25) inhaled device (31), the described suction device (31) of going up has outer surface (34) and bottom (33), and do slabbing, described outer surface (34) is placed in the face of the upper inside surface (27) of described pressure wall (11);

Wherein, the part of the bottom (33) of described above-mentioned suction device (31) extends the low district of the lower inner surface (21) of described pressure wall (11) downwards, it is characterized in that:

Inhale the very little gap (41) of imbibition liquefied oil gas on being shaped on by capillarity between the internal surface (20) of the outer surface (34) of device (31) and described pressure wall (11) on described.

2. according to the described gas tank of claim 1, it is characterized in that:

Described shape of go up inhaling device (31) in the level cross-sectionn ringwise, and

Described bottom (33) of going up suction device (31) extends the low district of described lower inner surface (21) basically downwards along its whole periphery.