JP2000205497A - Gas container pressure regulator - Google Patents

Abstract

(57) [Problem] To provide an integrally provided opening / closing means for opening / closing gas supply, a pressure adjusting unit for adjusting pressure of supplied gas, and the like in a base member connected to a gas container. As a result, the number of parts can be reduced to reduce the cost of parts and assembly, and the number of connection points of the gas supply path can be reduced to provide a gas container pressure regulator that can easily and completely prevent gas leakage. It is intended to be. SOLUTION: An inlet 3, a filling port 4, and a passage 5 communicating the inlet 3 and the filling port 4 to a base member 2 connected to a container 1.
a, 5b, a check valve 6, a pressure regulator 7, a passage 9 communicating the passage 5b with the pressure regulator 7, and an opening / closing lever 10 for opening and closing the gas flow between the passage 5b and the passage 9 are integrally provided. It is characterized by the following.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressure adjusting device for a gas container.

[0002]

2. Description of the Related Art As a conventional pressure adjusting device for a gas container, an opening / closing valve for opening / closing gas supply from the container is provided in a container containing gas, and further supplied from the container downstream of the opening / closing valve. In general, pressure adjusting devices for adjusting the gas pressure are separately connected in series.

[0003]

However, in the above-mentioned prior art, since the opening / closing valve and the pressure regulator are formed separately, there is a problem that the number of parts increases, and the cost of parts and assembly increases. In addition, since the number of connection points in the gas supply path is increased, it is necessary to take sufficient measures against gas leakage, so that there is a problem that it takes time to assemble parts and the like.

[0004] The present invention is to solve the above problems,
The purpose is to reduce the number of parts by integrally providing an opening / closing means for opening and closing gas supply and a pressure adjusting unit for adjusting pressure of supplied gas in a base member connected to the gas container. Therefore, it is possible to reduce the cost of parts and assembly and reduce the number of connection points of the gas supply path to provide a gas container pressure regulator which can easily and completely prevent gas leakage.

[0005]

According to a first aspect of the present invention, there is provided a pressure adjusting device for a gas container, wherein a gas contained in the gas container flows into a base member connected to the gas container. An inlet, a filling port communicating with the inflow port and filling the gas container with gas, a first passage connecting the inflow port with the filling port, and communicating the inflow port with the filling port. A check valve for preventing a back flow of gas between the first passages, a pressure regulator communicating with the inlet and adjusting a supply pressure of gas contained in the gas container, the inlet and the pressure A second passage connecting the adjusting portion; and an opening / closing means for opening and closing the flow of the gas flowing through the second passage between the second passage connecting the inflow port and the pressure adjusting portion. It is characterized by having.

According to the present invention, the base member connected to the gas container is integrally provided with an opening / closing means for opening / closing the supply of gas, a pressure adjusting unit for adjusting the pressure of the supplied gas, and the like. As a result, the number of parts can be reduced to reduce the cost of parts and assembly, and the number of connection points of the gas supply path can be reduced to provide a gas container pressure regulator that can easily and completely prevent gas leakage.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a gas container pressure adjusting device according to an embodiment of the present invention. FIG. 1 is a cross-sectional explanatory view showing a configuration of a pressure adjusting device for a gas container according to the present invention, FIG. 2 is a side view as viewed from the right direction in FIG. 1, and FIG. 3 shows a configuration of a safety valve indicated by a part A in FIG. It is a partial enlarged view.

In FIGS. 1 and 2, reference numeral 1 denotes a gas container which is filled with, for example, a fire extinguisher nitrogen (N ₂ ) gas or the like. Reference numeral 2 denotes a base member connected to the container 1. The base member 2 has an inflow port 3 through which gas contained in the container 1 flows, and a filling port that communicates with the inflow port 3 and fills the container 1 with gas. A port 4 and a passage 5a and a passage 5b connecting the filling port 4 and the inflow port 3 are provided.
A check valve 6 for preventing a back flow of gas is provided between b and the filling port 4.

The base member 2 has a pressure adjusting section 7 communicating with the inlet 3 and adjusting the supply pressure of the gas contained in the container 1, and a gas adjusted by the pressure adjusting section 7. There is provided a supply port 8 to be supplied to the outside, and a passage 9 communicating with the passage 5 b connecting the pressure adjusting section 7 and the inflow port 3. Further, the passage 9 is provided between the passage 5 b and the passage 9. 5
An opening / closing lever 10 is provided as opening / closing means for opening and closing gas flowing from b to the passage 9.

Accordingly, the base member 2 includes an opening / closing lever 10 having an opening / closing function for opening / closing gas supply from the container 1,
It is a pressure adjusting device that is configured as an integral part with a pressure adjusting unit 7 that exerts a pressure adjusting function for adjusting the pressure of the supplied gas, and is airtightly connected to the container 1.

As shown in FIG. 3, a rupture disk type safety valve 11 is provided in the passage 5b, and a large pressure is applied due to an increase in the temperature of the gas in the container 1 due to an increase in the surrounding environmental temperature. In this case, the gas in the container 1 is released from the safety valve 11 to ensure the safety of the container 1, the base member 2, and the like.

The safety valve 11 is provided in the base member 2 and is provided in the passage 5.
packing for the rupture disc on the nut part 2a communicating from the outside
A stop plug 14 is screwed and fixed via the rupture plate 13 and 12. When the temperature of the gas in the container 1 rises and a large pressure is applied, the rupturable plate 13 ruptures and the passage 5b
Then, the gas in the container 1 is released through a hole 14a penetrating through the inside of the stopper plug 14.

A check valve 6 is provided in the base member 2 and is constantly urged by a spring 16 into a plug 15 communicating with the filling port 4 from the passage 5b to the O-ring 22 on the tapered wall surface 15a of the plug 15. A check valve 17 is disposed, which is in contact with the gas through the valve 1.
Check valve 17 is plugged via O-ring 22 by the urging force of
The gas flow between the filling port 4 and the passage 5b is cut off by contacting the wall surface 15a.

When filling the container 1 with gas, the gas is filled from the filling port 4 at a pressure higher than the pressure of the gas in the container 1 plus the urging force of the spring 16.
The pressure of the gas filled from the hole 15b passing through the inside of the plug 15 exceeds the pressure of the gas in the container 1 plus the urging force of the spring 16, and the check valve 17 moves rightward in FIG. The gas filled from the filling port 4 flows through the passage formed between the wall surface 15a of the plug 15 and the O-ring 22,
The container 1 is filled through b and 5a.

The opening / closing lever 10 is provided integrally with the base member 2 and constitutes an opening / closing means for opening and closing the gas flow between the passage 5b and the passage 9. A shaft serving as a rotation center of the opening / closing lever 10 is provided. When a connection passage provided at a part of the leading end of the sheet 19 connected to the passage 18 communicates with the passage 5b and the passage 9 according to the rotation angle of the opening / closing lever 10, gas flows, and the connection passage is When the angle is set so as not to communicate with the passage 5b and the passage 9, the gas flow is shut off.

The pressure adjusting section 7 is provided integrally with the base member 2 and is constituted by, for example, a pressure adjusting means or the like constituted by using a diaphragm which is constantly urged by the urging means. The gas stored in the container 1 is supplied to the supply port 8 at a predetermined pressure by pressing the diaphragm through a biasing means with a pressure adjusting bolt or the like to balance the pressure with the pressure in the secondary pressure chamber.
Adjust to supply from.

In the drawing, reference numeral 20 denotes a primary pressure gauge for displaying the pressure on the primary side of the pressure adjusting unit 7, and reference numeral 21 denotes a secondary pressure gauge for displaying the pressure of the secondary pressure chamber.

According to the above configuration, the opening / closing lever 10 serving as opening / closing means for opening / closing gas supply to the base member 2 connected to the gas container 1 and the pressure adjusting section 7 for adjusting the pressure of supplied gas are integrated. The present invention provides a pressure regulating device for a gas container which can reduce the number of parts by reducing the number of parts, reduce the cost of parts and assembling, reduce the number of connection points of a gas supply path, and easily and completely prevent gas leakage. Can be done.

In the above-described embodiment, the case where the opening / closing lever 10 is used as the opening / closing means has been described. However, the same effect as described above can be obtained by using the opening / closing means such as a valve. is there.

The base member 2 connected to the container 1 described above may be any one that is substantially configured as a base member connected to the container 1. For example, the base member 2 having the above-described configuration may be used.
Even if a separate connecting member or the like is interposed between the container 1 and the container 1, it is widely included as long as it has a function as a base member that is substantially connected to the container 1.

[0021]

Since the present invention has the above-described structure and operation, the opening / closing means for opening / closing the gas supply to the base member connected to the gas container and the pressure adjusting unit for adjusting the pressure of the supplied gas are provided. The pressure control device of the gas container which can reduce the number of parts, reduce the cost of parts and assembly by reducing Can be provided.

[Brief description of the drawings]

FIG. 1 is an explanatory sectional view showing a configuration of a pressure adjusting device for a gas container according to the present invention.

FIG. 2 is a side view as viewed from the right in FIG.

FIG. 3 is a partially enlarged view showing a configuration of a safety valve indicated by a part A in FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Container 2 ... Cap member 2a ... Nut part 3 ... Inflow port 4 ... Filling port 5a, 5b ... Passage 6 ... Backflow prevention valve 7 ... Pressure adjustment part 8 ... Supply port 9 ... Passage 10 ... Opening / closing lever 11 ... Safety valve 12 ... Gasket for bursting plate 13 ... Burst plate 14 ... Stopcock 14a ... Hole 15 ... Plug 15a ... Wall surface 15b ... Hole 16 ... Spring 17 ... Check valve 18 ... Shaft 19 ... Seat 20 ... Primary pressure gauge 21 ... Secondary side Pressure gauge 22… O-ring

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Kenji Tetsura 222-1, Naganuma-cho, Isesaki-shi, Gunma Co., Ltd. Inside Gunma Koike Co., Ltd. (72) Inventor Etsuo Nakano 222-1, Naganuma-cho, Isesaki-shi, Gunma Co., Ltd. (72) Inventor Satoshi Ino 222-1, Naganuma-cho, Isesaki-shi, Gunma F-term in Gunma Koike Co., Ltd. (Reference) 3E072 AA10 GA30

Claims (1)

[Claims] 1. A base member connected to a gas container, an inlet through which gas contained in the gas container flows, a filling port communicating with the inlet and filling the gas container with gas, A first passage connecting the inflow port to the filling port, a check valve preventing backflow of gas between the first passage communicating the inflow port and the filling port, and communicating with the inflow port A pressure adjusting unit for adjusting the supply pressure of the gas stored in the gas container, a second passage connecting the inlet and the pressure adjusting unit, and communicating the inlet and the pressure adjusting unit. An opening / closing means for opening and closing the flow of the gas flowing through the second passage between the second passages.