JPH0634653Y2 - Collective piping hybrid gas meter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a collective pipe type hybrid gas meter capable of connecting a plurality of propane gas cylinders.

[Conventional technology]

Conventionally, in a factory, a cafeteria or the like where the amount of propane gas consumed is large, a collective pipe type gas supply device as shown in FIG. 3 is used.

That is, the gas supply device includes a pair of collecting pipes 27a, 27 connected to the high pressure hoses 26 of a plurality of gas cylinders 25 placed in parallel.
b, an automatic switching regulator 28 that connects the pair of collecting pipes 27a, 27b from the left and right, and a gas meter 30 that connects to an outlet side pipe 29 of the automatic switching regulator 28.

The automatic switching regulator 28 has a function of automatically switching the connection ports of the collecting pipes 27a, 27b according to the strength of the inflow pressure and adjusting (depressurizing) the pressure of the high-pressure gas. Is sent to the gas meter through the pipe 31. The gas meter 30 is normally arranged above the automatic switching regulator 28 so that the drain (gas reliquefied, dust, etc.) generated in the automatic switching regulator 28 does not enter.
In the figure, 32 is a drain extraction plug, 33 is a shutoff valve, and 34
Indicates the root valve.

However, in the above-mentioned conventional gas supply device, the pipe 31 to the gas meter 30 is provided with the automatic switching regulator for the above reason.
It is necessary to temporarily extend it from 28 and connect it to the gas meter 30 by piping it in a substantially inverted U shape, and further connect the pipe 35 downward from the gas meter 30 and supply it to the consumer side, which is a troublesome piping work. Had to do. In addition, because of that, the number of connections with energy and cheese increases,
There was a concern that the pipe strength would decrease and that the connection would leak. In particular, when a large amount of gas is used by the collecting pipe, these problems may lead to a serious accident, and a countermeasure is demanded.

[Problems to be solved by the device]

In view of the above points, the present invention is a gas supply device using a collective pipe, the number of connecting points of the pipe is small, the piping work is easy, and the pipe strength can be increased to improve the airtight reliability of the connecting portion. An object is to provide a supply device.

[Means for Solving the Problems]

In order to achieve the above object, the present invention provides an automatic switching system having a pair of collecting pipes connected to a plurality of high pressure gas hoses respectively connected to a plurality of gas cylinders and left and right high pressure gas inlets connecting the pair of collecting pipes. A collective pipe type hybrid gas meter including a regulator, a gas meter integrally disposed on the upper side of the automatic switching regulator, and an outlet pipe extending downward from the gas meter is adopted.

[Action]

Since the gas meter is integrally provided in the gas inlet automatic switching regulator, the piping between the gas inlet automatic switching regulator and the gas meter becomes unnecessary, and the number of pipe connection points is reduced. Therefore, the piping work is easy and the pipe strength is improved,
Airtight reliability is also improved. Further, since the gas meter is located above the automatic switching regulator, the drain generated in the automatic switching regulator does not enter the gas meter, and even if it does, it will be discharged from the downward outlet pipe.

〔Example〕

FIG. 1 shows an embodiment of a collective pipe type hybrid gas meter according to the present invention.

That is, in the collective pipe type hybrid gas meter 1, a gas meter 3 is integrally provided on the upper side of the automatic switching regulator 2, and a pair of collective pipes 4a and 4b are connected to the left and right of the automatic switching regulator 2. It consists of That is, the automatic switching regulator 2 is provided with high pressure gas inlets 5a, 5b on the left and right sides thereof, and the high pressure gas inlets 5a, 5b are urged in the closing direction by compression springs 6a, 6b, respectively. The valve bodies 7a and 7b are provided. The valve bodies 7a, 7b are driven by valve rods 8a, 8b interlocking with a diaphragm (not shown) in the automatic switching regulator 2, and when a gas cylinder (not shown) on one collecting pipe 4a (4b) side becomes empty. The high pressure gas inlets 5a and 5b are switched.

The gas adjusted to a low pressure by the automatic switching regulator 2 communicates with the upper gas meter 3, and the flow rate is measured by a diaphragm type flow meter (not shown) in the gas meter 3. The gas flow rate is displayed by the integrator 9 on the upper side. The gas that has passed through the diaphragm flow meter is sent from the gas meter 3 through the outlet pipe 10 extending downward to a consumer side pipe (not shown). Since the gas meter 3 is provided above the automatic switching regulator 2 in this consuming side pipe, the drain does not penetrate into the gas meter 3 from the automatic switching regulator 2, so that the conventional automatic switching regulator is used. No need for troublesome piping work such as once extending from 2 to piping, and the number of connecting points such as elbows and cheese can be reduced.

In the figure, 11a to 11f are high pressure gas hoses connected to a gas cylinder (not shown), and 12a to 12f are high pressure gas hoses 11a.
This is a basic valve for introducing high-pressure gas from 11f to the collecting pipes 4a, 4b.

FIGS. 2 (a) and 2 (b) show another means for connecting the polymerization pipes 4a, 4b (FIG. 1) to the high-pressure gas inlets 5a, 5b of the automatic switching regulator 2. That is, the connecting means in FIG.
A male taper screw 13 is formed at the front end of the collecting pipe 4c, and a flange 14 that engages with the taper screw 13 is provided.
O-ring groove 16 is provided on the outer periphery of boss portion 15 of 14
And the flange 14 is connected to the high pressure gas inlet 19 of the automatic switching regulator by means of a machine screw 18. Further, in the connecting means shown in FIG. 2B, a flange 20 is integrally formed at the tip of the collecting pipe 4d, a packing groove 21 is provided on the connecting side of the flange 20 and a packing 22 is fitted, and the flange 20 is bolted. It is connected to the high-pressure gas inlet 24 by 23. According to these connecting means, the O-ring 17 and the packing are
The airtightness can be improved by 22 and, at the time of connection, it is not necessary to rotate and screw the collective pipes 4c and 4d. Therefore, the root valve of the collective pipes 4c and 4d (12a in FIG. 1 is not shown).
~ 12f) does not collide, so you can easily connect even in places with little space.

In this embodiment (Fig. 1), the automatic switching regulator 2
Although the gas meter 3 is provided on the upper side of the above, a structure in which the gas meter 3 is installed below or on the side of the automatic switching regulator 2 is also possible if a drain removing device is used.

[Effect of device]

As described above, according to the present invention, since the gas meter is integrally provided on the upper side of the automatic switching regulator to which the collecting pipe is connected and the outlet pipe is extended downward from the gas meter, the drain generated in the automatic switching regulator is a gas meter. Without getting into
Even if it gets in, it will be discharged from the outlet pipe, eliminating the need for the troublesome piping work required in the past and reducing the number of piping work steps. Furthermore, since the number of connecting parts due to elbows, cheese, etc. is reduced, the pipe strength is increased and the fear of leakage from the connecting parts is eliminated. Therefore, the safety of the gas supply device using the collective pipe is improved.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view showing an embodiment of the present invention, FIGS. 2 (a) and 2 (b) are sectional views showing a connecting means of a collecting pipe, and FIG. 3 is an explanatory view showing a conventional example. . 1 ... Collective piping hybrid gas meter, 2 ... Automatic switching regulator, 3 ... Gas meter, 4a, 4b, 4c, 4d ... Collective piping, 5a, 5b, 19, 24 ... High pressure gas inlet, 12a- 12f ……
The root valve.

Claims (1)

[Scope of utility model registration request] 1. A pair of collecting pipes connected to a plurality of high pressure gas hoses respectively connected to a plurality of gas cylinders, an automatic switching regulator having left and right high pressure gas inlets connecting the pair of collecting pipes, and the automatic A collective pipe type hybrid gas meter, comprising a gas meter integrally arranged on an upper side of a switching regulator and an outlet pipe extending downward from the gas meter.