JPH0435695Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a burner fuel cylinder filled with liquefied gas and used for various purposes.

(Prior art and its problems) Conventionally, this type of burner fuel cylinder has
The following are widely known:

(1) As shown in Fig. 4, a dip tube 8 is vertically installed in the housing 5 of the mounting cup 1 at the top of the cylinder body, and the vaporized gas intake port 13 of the dip tube 8 is always kept above the liquid level of the filled liquefied gas. what was positioned.

(2) As shown in Fig. 5, without attaching a date tube to the housing 5, there is a gas retaining material 11 inside the cylinder body, such as urethane foam (including foamed material inside the cylinder body) or fibrous material such as pulp material. It is known that a device is filled with a substance and impregnated with liquefied gas. Furthermore, attempts have been made to use ultrafine powder such as silicon dioxide as the gas retaining material 11, or to fill the cylinder body with liquefied gas gelled and solidified using an oil gelling agent or metal soap. ing.

However, conventional burner fuel cylinders are
It has the following drawbacks.

In (1), the vaporized gas intake port 13 of the dip tube 8 is restricted by the position above the liquid level of the filled liquefied gas, so the gas filling amount is restricted to about half the volume of the cylinder body.

In (2), the gas retention material 11 is filled into the cylinder body and impregnated with liquefied gas, but the gas retention rate is poor, and in order to prevent liquefied gas from blowing out from the valve part of the cylinder, the gas filling amount must be adjusted. subject to restrictions. Furthermore, if ultrafine powder such as silicon dioxide is used as a gas retaining material, the ultrafine powder will be carried along with vaporized gas, etc., clogging the valve part or burner (not shown), and the ultrafine powder such as silicon dioxide If the powder is released into the atmosphere, it will create a pollution problem.

On the other hand, when liquefied gas is gelled and solidified and then filled into a cylinder, the gas retention rate is high and the amount of gas filled can be increased, but on the other hand, the release performance of the vaporized gas becomes poor and burners etc. It has the disadvantage that the required flow rate is insufficient.

(Purpose of the invention) This invention was proposed in view of the above points, and its purpose is to fill various volumes with the same amount of gas retaining material so that it can be used both in upright and inverted positions. It is an object of the present invention to provide a fuel cylinder for a burner, which can stably supply only vaporized gas to a burner, etc., and can ensure a maximum gas filling amount.

That is, the burner fuel cylinder according to the present invention includes a cylindrical housing with a bottom, which is held by the threaded part of the central boss part of the mounting cup, and which is held at least in part with a space between the threaded part and the threaded part; A fuel cylinder for a burner comprising an annular stem rubber held between the upper part of the housing and the upper surface of the boss part of the mounting cup, and a date petite tube that is vertically connected to the inside at the center of the bottom of the housing, wherein the date petite tube A larger diameter and longer cylindrical outer tube is covered to create a double structure, a ventilation hole is drilled in the outer tube located near the tip of this date petite tube, and a propylene cover is placed around the outer circumference of the outer tube. The cylinder space is filled with a gas retaining material to achieve the above object.

(Disclosure of invention) The present invention will be explained below with reference to the drawings.

1 and 2 are longitudinal sectional views showing an embodiment of the present invention, in which 1 is a mounting cup, 2 is a boss portion, 3 is a threaded portion, and 4 is an annular stem made of an elastic material. Rubber, 5 is housing, 6 is stem, 7 is spring, 8 is date petite tube,
9 is an outer tube, and 10 is a cover, which is made of, for example, a gas retaining material that has a low affinity for liquefied gas. 11 is a gas retaining material.

This gas retaining material 11 is a fluidity suppressant and is generally made of a material such as pulp material, urethane foam, or urethane powder, which has poor gas retaining properties but good gas release properties. It has a double structure with a date small tube 8 and an outer tube 9, and the length of the date small tube 8 is determined by the cylinder volume and gas filling amount, just like the inner tube, which is determined by the cylinder volume and gas filling amount, and is in an upright state. By combining the outer tube 9 with a vent hole 12 for preferentially taking in gas when used in an upright or inverted position, vaporized gas can be taken out when used in both the upright and inverted positions. In addition, when using powder as a gas retaining material, the cover 1 attached to the outer tube 9
0 serves as a filter, and this cover 10
The material has a different system from the gas retaining material 11 and has a smaller gas affinity than the gas retaining material. With this configuration, vaporized gas can be supplied to the burner whether the cylinder is upright or upside down, and all the gas filled in the cylinder can be used for a long time. Gas flow rate can be kept stable.

Next, the usage condition of the burner fuel cylinder will be explained.

When the burner gas supply port (not shown) is attached to the threaded part 3 of the burner fuel cylinder, the burner press nozzle 13 presses the stem 6 downward and descends against the spring 7, and the burner fuel cylinder is connected to the burner fuel cylinder. The liquefied gas filled in the gas retaining material 11 is vaporized, passes through the cover 10 of the outer tube 9, enters the outer tube 9 from the vent hole 12 of the outer tube 9, passes through the dip tube 8, and connects with the stem 6. Vaporized gas is supplied to the burner from the gap with the stem rubber 4.

FIG. 3 is a graph showing the relationship between container capacity (ml) and retained gas amount (ml) in burner fuel cylinders of the present invention and conventional burner fuel cylinders. The cylinder is the conventional example.
1. It is found that the increase is more than 28-40% compared to No. 2.

To fill such a burner fuel cylinder with liquefied gas, press the filling adapter (not shown) against the boss 2, and simultaneously push down the stem 6 with the rod-shaped protrusion (not shown) at the tip of the filling adapter. It is filled with liquefied gas.

As mentioned above, although the present invention has been explained with reference to burner fuel cylinders, it is not limited thereto, and it goes without saying that it can be applied to various types of cylinders that store other liquefied gases.

(Effects of the invention) As described above, according to the burner fuel cylinder according to the present invention, the fuel cylinder for a burner is held by the threaded part of the central boss part of the mounting cup, and at least a portion is held by providing a space between the threaded part and the threaded part. a cylindrical housing with a bottom, an annular stem rubber held between the upper part of the housing and the upper surface of the boss part of the mounting cup, and a dip tube that communicates with the inside at the center of the bottom of the housing. In this burner fuel cylinder, a cylindrical outer tube with a larger diameter and longer than the date petite tube is covered to form a double structure, a vent hole is bored in the outer tube located near the tip of the date petite tube, and a vent hole is provided in the outer tube located near the tip of the date petite tube. A propylene cover is placed around the outer circumference of the tube, and this cylinder space is filled with gas retention material, so that the same amount of gas retention material can be filled into each type of container, and only the vaporized gas can be stabilized when used both upright and inverted. The gas can be supplied to a burner, etc., and the maximum gas filling amount can be ensured.

[Brief explanation of the drawing]

Fig. 1 is a vertical sectional view showing an embodiment of the present invention;
The figure is an enlarged cross-sectional view of the valve part of the burner fuel cylinder according to the present invention, Figure 3 is a characteristic diagram of the retained gas amount of the cylinder of the present invention and the conventional example, and Figures 4 and 5 are for the conventional burner fuel cylinder. This is for explanation showing a fuel cylinder. 1...Mounting cup, 2...Boss part,
3...Threaded part, 4...Stem rubber, 5...Housing, 6...Stem, 7...Spring, 8...
...Date petite tube, 9...Outer tube,
10...Cover, 11...Gas retaining material.

Claims (1)

[Scope of utility model registration request] a bottomed cylindrical housing held by a threaded portion of a central boss portion of a mounting cup, and at least a portion of which is held with a space between the threaded portion and the boss portion of the mounting cup; In a burner fuel cylinder comprising an annular stem rubber held between the upper surface of the housing and a dip tube that communicates with the inside at the center of the bottom of the housing, a cylindrical outer tube having a larger diameter and longer than the dip tube is provided. A vent hole was drilled in the outer tube located near the tip of this date petite tube, a propylene cover was placed around the outer circumference of the outer tube, and this cylinder space was filled with a gas retaining material. Characteristic burner fuel cylinder.