JP2002061796A - Vaporizer for liquefied gas filling tank - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vaporizing container capable of being connected to a tank 1 filled with liquefied gas and using the tank safely even when the tank 1 is brought into a stale falling-down sideways. SOLUTION: The vaporizer is situated between the tank 1 filled with liquefied gas and a regulator 2 and has the inside filled with fine metallic chips 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vaporizer connected to a tank filled with a liquefied gas to vaporize the liquefied gas in the tank.

[0002]

2. Description of the Related Art In general, nails, staples, pins and the like are often driven by a pneumatic tool. The pneumatic tool takes compressed air from a tank filled with air compressed by a compressor and uses the compressed air as a driving source.

However, since a compressor cannot operate without a power supply, a pneumatic tool cannot be used to drive nails or pins in a place where power supply cannot be introduced. In such a case, a tool using explosives or internal combustion is used as a power source. Also, nitrogen, compressed air,
It is also considered to use a cylinder filled with carbon dioxide gas or the like.

[0004]

However, since the structure of explosive or internal combustion tools is different from that of pneumatic tools, it is necessary to purchase new machines and equipment, and a new investment is required for each application. is there.

In the case of a gas cylinder, a pneumatic tool can be used, but the amount of gas charged is determined by the size of the cylinder. To perform a large amount of nailing requires a large amount of gas, and the cylinder must be large. Therefore, it is more efficient to liquefy the gas and fill the tank, since a large amount of gas can be supplied even if the tank itself is small. In particular, it is desirable to use carbon dioxide gas which can be filled with liquid at room temperature.

[0006] However, in the case of filling with a liquid, if the tank is turned sideways, the liquid flows out as it is,
The pressure cannot be adjusted by the regulator. Therefore, it must be used in a standing state at all times, which is inconvenient and has a problem in safety when the tank falls.

It is an object of the present invention to solve the above-mentioned problems and to provide a liquefied gas filled tank vaporization container which can be connected to a tank filled with liquefied gas and can be used safely even if the tank is turned over. Make it an issue.

[0008]

In order to solve the above-mentioned problems, a vaporizer for a liquefied gas filling tank according to the present invention comprises a vaporizing container in which a liquefied gas is vaporized between a tank filled with a liquefied gas and a regulator. It is characterized by having been provided.

It is preferable that the inside of the vaporization container is filled with fine metal chips.

[0010] Further, the vaporizing apparatus has a vaporizing container provided between a tank filled with a liquefied gas and a regulator, and has a double structure comprising an inner container and an outer container. One of the outer containers may be provided with an inlet for the liquefied gas from the tank, and the other container may be provided with an outlet for the vaporized liquefied gas.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1, reference numeral 1 denotes a tank. This tank 1 is filled with a liquefied gas. 2
Is a regulator for adjusting the gas discharged from the tank 1 to a constant pressure. 3 is a valve.

A vaporization container 4 is provided between the tank 1 and the regulator 2. The inside of the vaporization container 4 is filled with fine metal chips 5. The metal scrap 5 is obtained by rolling a thin metal wire having high thermal conductivity, such as copper, stainless steel, and aluminum.

In the above configuration, when the valve 3 is opened with the tank 1 lying down, the liquefied gas enters the vaporization container 4 from the mouth of the tank 1. Since the vaporization container 4 is located at a higher position than the tank 1 and the air in the vaporization container 4 cannot escape to the atmosphere by the regulator 2, the lower part in the vaporization container 4 is filled with the liquefied gas (10 is the liquid level). However, the liquefied gas is vaporized in the upper space 11 and sent to the regulator 2 where the pressure is adjusted and discharged. By the way, since the temperature drops rapidly when the liquefied gas is vaporized, metal dust 5 is focused on the inside of the vaporization container in order to suppress the temperature drop of the vaporized gas. The vaporized gas comes into contact with the metal chips 5 and absorbs the heat of the metal chips 5 to suppress the temperature drop. Therefore, the vaporized gas is discharged at a relatively high temperature.

The reason why the gas is discharged at a high temperature is that when the discharged gas is used as a driving source for the nailing machine 9 or the like, the pressure drops when the temperature of the gas is low. However, since the vaporization container 4 is a means for securing a volume for vaporizing the liquid discharged from the mouth of the tank 1, the metal waste 5 may not be provided in the vaporization container 4. The temperature may be raised by an appropriate heating means after the gas has passed through the regulator 2.

Next, the vaporizing container 4 is not limited to the above configuration. For example, as shown in FIGS. 2 and 3, the vaporization container 4 may have a double structure of an inner container 4a and an outer container 4b. A liquefied gas intake port 6 from the tank 1 is formed in the center of the inner container 4a, and the outer container 4b
A communication port 7 that communicates with the communication port is formed. A discharge port 8 for vaporized liquefied gas is formed in the upper part of the outer container 4b.

According to the above configuration, when the valve 1 is opened with the tank 1 lying down, the liquefied gas flows into the inner container 4a from the mouth of the tank 1 and further flows into the outer container 4b from the communication port 7. Since the air in the vaporizing container 4 cannot escape to the atmosphere by the regulator 2, the liquid level 10 becomes as shown in FIG.
Never meet. For this reason, a space 11 for vaporization is formed on the liquid surface 10, and the liquefied gas is vaporized in this space and discharged from the regulator 2.

Note that when the tank 1 rotates, FIG.
And as shown in FIG. 5, the inner container 4a, the outer container 4
Although the positions of the communication port 7 and the discharge port 8 of b are shifted, the vaporization space 11 is secured, and the discharge port 8 is not filled with the liquid level.

Also, contrary to the above embodiment, the outer container 4b
May be provided with a liquefied gas intake 6, and the inner container 4a may be provided with a vaporized liquefied gas outlet 8.

According to the above-described vaporizing apparatus, since the vaporizing container 4 is provided between the tank 1 and the regulator 2, even in the case where the vaporizing container 4 is filled with the metal chips 5, the vaporizing container 4 can be connected to the inside and outside of the container. Even in the case of a structure, a volume for vaporizing the liquefied gas before entering the regulator 2 can be ensured, so that it can be used safely even when it is lying down. Therefore, the tank 1 can be used in the upright state or the sideways state, and the usability is improved.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing a connection relationship between a liquefied gas filling tank, a vaporization container, and a regulator according to the present invention.

FIG. 2 is an explanatory view showing a connection relationship of another example of a liquefied gas filling tank, a vaporization container, and a regulator.

FIG. 3 is a sectional view taken along line XX of FIG. 2;

FIG. 4 is a sectional view when the liquefied gas filling tank rotates.

FIG. 5 is a sectional view when the liquefied gas filling tank rotates.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tank 2 Regulator 4 Vaporization container 4a Inner container 4b Outer container

Claims (3)

[Claims] 1. A vaporizer for a liquefied gas filling tank, comprising a vaporizing container for vaporizing a liquefied gas between a tank filled with the liquefied gas and a regulator. 2. A vaporizer for a liquefied gas filling tank according to claim 1, wherein said vaporization container is filled with fine metal chips. 3. A vaporizing container is provided between a tank filled with a liquefied gas and a regulator, and the vaporizing container has a double structure including an inner container and an outer container, and one of the inner container and the outer container. A liquefied gas inlet from the above-mentioned tank is provided in the container, and an outlet for the vaporized liquefied gas is provided in the other container.