JPH0325138Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a gas meter with an automatic switching adjustment mechanism in which a gas meter and an automatic switching adjustment device are housed in an integrated casing.

[Prior Art] As a piping structure for switching and supplying gas in a pair of LPG containers, the connections shown in FIG. 6 have conventionally been used. In other words, one of the left and right LPG containers 1 and 2 fixed in the installation position and the automatic switching regulator 3
is connected directly via an inlet pipe, and the other is connected via a high pressure hose 4, and the outlet end of the regulator 3 is connected to the inlet of a gas meter 6 via a low pressure hose 5. It was piped from the outlet end of No. 6 to the consumption side.

[Problems to be solved by the invention] This type of piping requires the following conditions: no external force is applied directly to the gas meter 6, the gas meter 6 does not become a drain blockage, and the meter reading is easy to visually confirm. , between the low-pressure hose 5 and the gas meter 6, a stand-up piping section 7 consisting of a combination of a steel pipe, an elbow, a tee, etc. is required.

This type of piping section 7 must be installed on-site by taking into account the relative positions of the switching regulator 3 and the meter 6, and the installation work is troublesome, requires experience, and is time-consuming and costly. .

Furthermore, since the number of connection points increases, there is concern about the airtightness of the connection points.

Furthermore, if the installation space of the gas supply equipment itself is narrow, the ideal arrangement as shown in the diagram may not be achieved, and the positions of the regulator 3 and meter 6 may become complicated, resulting in drainage stagnation as described above, or problems with meter reading. There was a risk that this would cause problems.

The purpose of this invention is to simplify the above piping connection work, reduce the number of installation steps, and make the gas supply equipment itself more compact.

[Means for solving the problem] In order to achieve the above object, the present invention consists of an upper case provided with a counter section on the front, and a lower case integrated at the lower part of the upper case. In addition to providing gas intake ports on both sides, an automatic switching adjustment mechanism is built into the upper case, in which intermediate pressure parts and low pressure parts communicating with each gas intake part are arranged in the front and back. The gas meter is connected to a gas meter built into the case, the flow rate measured by the gas meter is displayed on the counter section, and a gas outlet section is provided on the back of the upper case.

[Example] Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 1 is an external perspective view of a gas meter with an automatic switching adjustment mechanism according to the present invention, FIG. 2 is a plan view of the same gas meter, and FIG. 3 is a sectional view taken along the line -- in FIG. 2.

In the figure, 10 is an upper case, and 12 is a lower case connected to the lower part of the upper case 10 by a flange.

A counter portion 13 is provided on the front surface of the upper case 10, and gas intake portions 1 are provided on both sides.
4 is provided, and a high pressure hose 16 is communicated with the inside of the upper case 10 via a hose union 15.

At the center of the upper case 10 is an intermediate pressure section 1 that communicates with the gas intake section 14 via a switching valve (not shown).
7 and a low pressure section 19 that communicates with the rear part of the intermediate pressure section 17 via a communication path 18.

The intermediate pressure section 17 is provided with an intermediate pressure diaphragm assembly 20, and the switching valve is driven by vertical movement of the diaphragm assembly 20 according to the inflow pressure from each gas intake section 14, and the switching valve is connected to one of the high pressure hoses 16 and 20. We are starting to get along.

The low pressure section 19 also includes a low pressure diaphragm assembly 21 and a valve 23 that is connected to the diaphragm assembly 21 via an operating rod 22 to open and close the communication passage 18. Diaphragm assembly 21 according to
The gas outlet side pressure is adjusted by opening and closing the valve 23 by vertical movement of the valve 23.

The lower side of the upper case 10 is partitioned into a front and rear space by a partition wall 24, and the rear space communicates with the low pressure section 19 and the inside of the lower case 12. A normal diaphragm flowmeter (not shown) is built into the lower case 12, and the values measured by this flowmeter are displayed on the counter section 13 fitted in the front side space. Incidentally, since the above structure is well known, the mechanism thereof is entirely omitted.

The gas outlet side of the flow meter is connected to the upper case 1.
A pair of outlet pipes 25 provided on both sides of the rear of the
is connected to.

FIG. 4 and FIGS. 5a, b, and c show examples of piping connections using the gas meter A constructed as described above.

In the figure, 31 and 32 are a pair of LPG containers installed on an installation stand 30 and fixed to the wall by a chain 33, and a gas meter A is arranged at the upper center of each container 31 and 32, and the high pressure It is connected to a gas meter A via a hose 16.

Gas meter A is fixed on a gas pipe 34 on the consumption side that protrudes from the wall.

The gas pipe 34 and the gas meter A can be connected by connecting the aforementioned outlet pipes 25 through steel pipes, elbows, and tees as shown in Fig. 5a, b, and c. Stable fixation can be achieved without the need for

[Effects of the invention] As explained above using the embodiments, according to this invention, by incorporating the automatic switching regulator into a pair of cases with the gas meter, piping connection work is simplified, installation man-hours are reduced, and gas The supply equipment itself can be made more compact.

[Brief explanation of the drawing]

Fig. 1 is an external perspective view of a gas meter with an automatic switching adjustment mechanism according to this invention, Fig. 2 is a plan view of the same gas meter, Fig. 3 is a cross-sectional view taken along the - line in Fig. 2, and Fig. 4
The figure is an explanatory diagram showing an example of piping connection of gas supply equipment using the gas meter, and Figures 5a, b, and c show the connection structure between the gas meter and the supply side gas pipe.
FIG. 6 is an explanatory diagram showing an example of piping connections of a conventional gas supply facility. 10... Upper case, 12... Lower case, 13...
...Counter part, 14...Gas intake part, 17...
Medium pressure section, 19...Low pressure section, 25...Outlet pipe.

Claims (1)

[Scope of utility model registration request] It consists of an upper case with a counter section on the front, and a lower case integrated at the bottom of the upper case, with gas intake ports provided on both sides of the upper case, and a middle case that communicates with each gas intake port. An automatic switching adjustment mechanism in which a pressure part and a low pressure part are arranged in front and behind is built into the upper case, and the gas outlet of the adjustment mechanism is communicated with a gas meter also built into the lower case, and the flow rate measured by the gas meter is A gas meter with an automatic switching adjustment mechanism, characterized by displaying it on the counter part and further having a gas outlet part on the back of the upper case.