JPS6064120A - Lpg common use type gas apparatus - Google Patents

Abstract

PURPOSE:To offer the gas apparatus which is usable in common in a room having no piping installation by a method wherein a gas intake pipe and an LPG gas pipe are provided in parallel, that is, the gas intake pipe is removably connected to the already constructed supply piping of a gas supplying source, the LPG gas pipe is directly connected to a gas cylinder. Each pipe is installed to be arranged and connected with a main gas pipe for a gas burner via a change-over valve. CONSTITUTION:At the using by connecting to the already constructed gas supply piping 1, a gas intake pipe 3 is pulled out from a main body 10, connected to a main cock 2 of the piping 1 with a joint fitment 20, a change-over valve 7 is operated according to the operation procedure. When the main cock 2 and an open/close cock 13 are opened, a gas is supplied to a gas burner 8 via a main gas pipe 9 from the already constructed gas supply piping 1. When the change- over valve 17 is changed-over to the cylinder side, the gas from a gas cylinder 5 is communicated to the main gas pipe through a gas pipe 6, accordingly, the gas inside of the gas cylinder 5 can be supplied to the gas burner 8.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Use The present invention is used for home or business use as a gas heater, gas stove, or other gas appliance.

TECHNICAL BACKGROUND OF THE INVENTION Gas appliances that use gas as fuel, particularly gas heaters, for example, can only be used in specific locations with gas supply piping, and cannot be used in rooms without piping equipment. Therefore, if you need a gas heater in a room without gas plumbing.

There was no other way than to connect a temporary LPG cylinder outside with a rubber hose, but if the area was far away, it would have to pass through multiple rooms, so it was necessary to close the door at the entrance. This has the disadvantage that thermal efficiency decreases due to the intrusion of drafts, making it impossible to obtain comfortable heating. In addition, even if gas supply piping facilities are available, if the main valve is far away, there is a risk of the rubber hose being stepped on or coming off from the connection port when passing the rubber hose through a passage, which is not only dangerous but also problematic from a safety perspective. there were.

Purpose of the Invention The present invention addresses these conventional drawbacks and is intended to be used not only in rooms with gas supply piping facilities, but also in rooms with gas supply piping facilities.
Our goal is to provide gas appliances, especially gas heaters, that can be used commonly even in rooms without plumbing facilities.
Another purpose is to provide a gas appliance of this type that can be connected directly to a gas main valve without using a rubber hose and is highly safe and thermally efficient.

Structure Therefore, in this invention, a gas intake pipe that can be detachably connected to an existing supply pipe of a gas supply source and an LPG gas pipe that is directly connected to a gas cylinder are provided in parallel, and The gas intake pipe is connected to the main gas pipe to the gas burner and integrated into the main body of the gas appliance, and the gas intake pipe that can be connected to the existing pipe is provided with a flexible tube. be.

Examples Examples will now be described with reference to the drawings. The example diagram shows a gas heater.

In the figure, 1 is an outdoor gas supply pipe that has already been installed as a residential facility, and 2 is a main valve installed on the indoor side.

3 is a gas intake pipe that can be detachably connected to the supply pipe 1, and 65 is a gas cylinder provided with a flexible tube 4 in the middle, and the gas intake pipe 3 and this gas cylinder 5 are
A gas pipe 6 for LPlj, which is directly connected to the main gas pipe 6, is provided in parallel and connected to a main gas pipe 9 to a gas burner 8 via a switching valve 7. 10
is the main body of the gas appliance, into which the above-mentioned series of components are integrated.

11 and 12 are check valves, 13 is a cock for opening and closing the gas burner 8, 14 is a regulator that automatically controls the supply gas pressure to a constant value and maintains a constant flow rate at a constant pressure, 15 is a gas constant 14 orifice, 16 17 is a pilot burner for pilot fire safety, 17 is a thermocouple for Enki 4 power source, and 18 is a piezo type igniter.

The gas cylinder 5 is housed in a removable cassette device 19 equipped with a mechanism that allows it to be installed and removed safely and easily.

Function: When used by connecting to the existing gas supply piping 1, pull out the gas intake pipe 3 from the main body 10, connect it to the piping 10 main stopper 2 using a screw type Indian fitting, and then connect the switching valve 7 according to the handling procedure.
When the main valve 2 and the υa switch cock 13 are opened, gas is supplied from the existing gas supply pipe 1 to the gas burner 8 via the main gas pipe 9.

When the knob 7a is rotated at the same time as the switching operation of the switching valve 7, the igniter 18 is activated by thermoelectromotive force, the pilot burner 16 is ignited, and the gas burner 8 is ignited.

When switching the switching valve 17 to the cylinder side,
The gas in the gas cylinder 5 can be supplied to the gas burner 8 by communicating with the main gas pipe 9 through the pipe 6.

Effects of the Invention As described above, the present invention connects a gas intake pipe that can be connected to existing piping and an LPG gas pipe for a gas cylinder in parallel to the main gas pipe to the gas burner via a switching valve, and connects these to the main gas pipe to the gas burner. Since it is integrated into the main body of the gas appliance, if there is existing piping equipment for supplying gas, you can use it as is, or if there is no piping equipment, you can switch to the built-in gas cylinder side to replace the gas cylinder. The gas can be selectively shared by allowing the gas to flow through the main gas piping, and the gas intake pipe can be freely pulled out due to the flexibility of the flexible tube and connected directly to the gas supply piping, which eliminates the need for a long rubber hose like in the past. There is no need to route or connect cables, and it is safe, thermally efficient, and can quickly provide comfortable gas heating.

Moreover, the structure is simple and can be implemented at low cost.

[Brief explanation of drawings]

The drawing is a piping diagram showing a gas heater as an embodiment of the invention. 1... Gas supply piping 2... Main valve 3... Gas intake pipe 4... Flexible tube 5
...Gas cylinder 6...Gas pipe 7...Switching pin 8...Gas 7 pipe 9...Main gas pipe 1O...Gas appliance body u, 12...Check valve

Claims (1)

[Claims] (1) A gas intake pipe that can be detachably connected to the existing supply piping of the gas supply source, and an LPG gas intake pipe that is directly connected to the gas cylinder.
8 in parallel, connected to the main gas pipe trap pipe to the gas burner via a switching valve, and integrated into the main body of the gas appliance. Patent G common type gas appliance, characterized in that a flexible tube is interposed in the gas intake pipe that can be connected to the existing piping.