JPH11295129A - Hybrid gas meter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a miniaturized gas meter by communicating the low- pressure adjustment section of a pressure regulator with a medium-pressure gas inlet section, a low-pressure auxiliary adjustment section and a measurement chamber, and communicating the low-pressure auxiliary adjustment section with the low-pressure adjustment section, the measurement chamber and a low-pressure gas outlet section. SOLUTION: Medium-pressure gas is guided to a low-pressure adjustment section 34 through an inlet piping and a medium-pressure gas inlet section 40 and decompressed into low-pressure gas. The low-pressure gas is guided to a measurement chamber 70 through a communication path 34a and measured and sent to a low-pressure auxiliary adjustment section 36. The low-pressure auxiliary adjustment section 36 finally adjusts the outlet pressure of a low- pressure gas outlet section 50 to the inlet pressure of a gas consuming apparatus. This hybrid gas meter can be directly connected to a medium-pressure line, decompresses the medium-pressure gas to the inlet pressure of the gas consuming apparatus, and can measure the gas fed to the gas consuming apparatus. The whole gas meter can be miniaturized, and it can be easily installed even when the installation space has a limitation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hybrid gas meter in which a gas meter main body and related devices are integrally formed.

[0002]

2. Description of the Related Art Conventionally, in a facility where a distance between a supply facility and a gas consuming apparatus is large, in order to secure an inlet pressure of the gas consuming apparatus, a direct pressure of a container is controlled by a primary regulator as shown in FIG. The pressure is reduced to a medium pressure and supplied to the vicinity of the gas consuming device. The pressure is reduced to a low level by a secondary regulator arranged near the gas consuming device, and then supplied to the gas consuming device via the gas meter. The separation of the regulator into the primary and secondary regulators also increases the number of gas piping connections.

[0003] In order to reduce the number of connection parts where there is a fear of gas leakage and to simplify the gas pipe connection work, Japanese Utility Model Application Publication No.
There is one disclosed in Japanese Patent No. 21524. The publication discloses a hybrid gas meter in which a gas meter main body and a pressure adjusting unit are integrated, but has a structure in which the pressure adjusting unit uses the direct pressure (high pressure) of the container as the inlet pressure.

[0004]

However, in the gas meter disclosed in the above publication, the pressure regulator has a structure in which the container direct pressure (high pressure) is used as the inlet pressure, and the pressure is reduced and output at a low pressure. There is a problem that the technology of the publication cannot be applied as it is to equipment for supplying medium pressure in which the adjusting unit uses medium pressure as the inlet pressure.

The present invention has been made in view of such a conventional problem. In equipment for supplying medium pressure using medium pressure as an inlet pressure, a gas pipe between a low pressure adjusting section and a measuring chamber is provided. Abolished, a hybrid gas meter that can prevent gas leakage and reduce the number of gas piping connection steps, and a pressure meter installed in the side recess of the gas meter body to reduce the size of the entire gas meter It is an object of the present invention to provide a hybrid gas meter capable of performing such operations.

[0006]

Means for Solving the Problems According to the first aspect of the present invention, which has been made to solve the above-mentioned problems, a gas meter main body 1 is provided.
In a hybrid gas meter integrally including the pressure regulator and the related equipment 20, the related equipment 20 has a pressure regulator 30, an intermediate pressure gas inlet 40, and a low pressure gas outlet 50, and the pressure regulator 30 Has a low-pressure adjusting unit 34 and a low-pressure auxiliary adjusting unit 36, and the low-pressure adjusting unit 34
Communicates with the medium-pressure gas inlet 40, the measuring chamber 70 provided in the upper part of the gas meter main body 10, and the low-pressure auxiliary adjusting unit 36,
Is a hybrid gas meter, which communicates with the low-pressure adjusting section 34, the measuring chamber 70, and the low-pressure gas outlet 50.

According to the first aspect of the present invention, the medium pressure line capable of supplying the medium pressure gas is connected to the medium pressure gas inlet 40, and the medium pressure gas passes through the medium pressure gas inlet 40. The operation enters the low pressure adjusting section 34. The low-pressure adjusting unit 34 reduces the pressure of the medium-pressure gas to a low-pressure gas. The low-pressure gas passes through the measuring chamber 70 and is sent to the low-pressure auxiliary adjusting unit 36 after being measured. The low-pressure auxiliary adjusting unit 36 performs final adjustment of the outlet pressure of the low-pressure gas outlet unit 50.

[0008] By integrating the low-pressure adjusting section 34 with the medium pressure as the inlet pressure and the measuring chamber 70, the medium-pressure line is directly connected to the hybrid gas meter, and the low-pressure adjusting section 3 is connected.
4 and the measuring chamber 70 can be connected without using a gas pipe, and the gas pipe can be eliminated. Thereby,
Gas leakage can be prevented, and the number of steps for connecting gas pipes can be reduced.

According to a second aspect of the present invention, there is provided a hybrid gas meter in which a gas meter main body and an associated device are integrally formed. The related equipment 20 has a pressure regulator 30, a medium-pressure gas inlet 40, and a low-pressure gas outlet 50, and the pressure regulator 30
Has a low-pressure adjusting unit 34 and a low-pressure auxiliary adjusting unit 36,
The low-pressure adjusting section 34 communicates with the medium-pressure gas inlet section 40, the low-pressure auxiliary adjusting section 36, and a measuring chamber 70 provided above the gas meter body 10, and the low-pressure adjusting section 34 The low-pressure auxiliary adjustment unit 36 is accommodated in one of the side recesses 12 on both side surfaces 11 of the gas meter body 10, and communicates with the low-pressure adjustment unit 34, the measuring chamber 70, and the low-pressure gas outlet 50. The low-pressure auxiliary adjusting section 36 is provided on both sides 1 of the gas meter main body 10.
1 is a hybrid gas meter that is housed in the other side recess 12.

According to the second aspect of the present invention, the first aspect is provided.
As described in the invention described in (1), leakage of gas can be prevented, and the number of steps for connecting gas pipes can be reduced. In addition, related equipment 20
The low-pressure adjusting section 34 and the low-pressure auxiliary adjusting section 36 of the pressure regulator 30 are mounted in a state where the low-pressure adjusting section 34 and the low-pressure auxiliary adjusting section 36 are accommodated in both side recesses 12 of the gas meter main body 10, so that both sides of the entire gas meter are not bulky. And the pressure regulator 30 does not need to be provided above or below the gas meter main body 10, and the gas meter can be easily installed even in an installation space limited in the vertical direction. Can be.

Further, since the front of the gas meter body 10 is not used at the place where the related equipment 20 is installed, the gas meter body 1 is not used.
0, a mounting space is secured in front of the gas meter body 1
0 can be used effectively. Furthermore, since the measuring chamber 70 is disposed above the low-pressure adjusting unit 34, it is possible to prevent the reliquefied gas from entering the measuring chamber 70 and the like.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 to 4 show an embodiment of the present invention. FIG. 1 shows an internal configuration of a hybrid gas meter according to one embodiment of the present invention. As shown in FIG. 1, a recessed groove having a substantially trapezoidal cross section is provided on the outer peripheral surface of the gas meter main body 10 in the circumferential direction, whereby side recesses 12 are formed on both side surfaces 11 of the gas meter main body 10. Have been. Case body 6 is provided on the front of gas meter body 10.
0 is mounted on the upper surface of the gas meter main body 10.
0 is attached.

FIG. 2 is a front view of the hybrid gas meter, FIG. 3 is a left side view of the hybrid gas meter, and FIG. 4 is a right side view of the hybrid gas meter.
As shown in FIGS. 2 to 4, the case body 60 includes a control unit 6.
1. A terminal transmission device 62 and a terminal connection unit 63 are provided. On the front of the case body 60, a measured volume display section 64 and a cutoff display section 65 are provided. The measuring volume display section 64 and the cutoff display section 65 have a function of displaying externally by an LED (light emitting diode) or an LCD (liquid crystal).

The hybrid gas meter according to the present embodiment comprises a gas meter main body 10 and related devices 20 integrally formed. Related devices 20 include a pressure regulator 30, a low-pressure regulator 34, a low-pressure auxiliary regulator 36, and a medium-pressure gas inlet 4
0, a low-pressure gas outlet section 50, display sections 64 and 65, and the like. The medium pressure gas inlet 40 is connected to a medium pressure line inlet pipe. The low pressure gas outlet 50 is connected to an outlet pipe leading to a gas consuming device.

The pressure regulator 30 comprises a low-pressure adjusting section 34 and a low-pressure auxiliary adjusting section 36. Each of the adjusting units 34 and 36
The pressure is adjusted by opening and closing the valve by moving the diaphragms 35 and 37 up and down. The diaphragms 35 and 37 move up and down in conjunction with each other by an interlocking rod 38 that does not lock. The interlocking rod 38 transmits the pressure loss to the diaphragm 35 of the low-pressure adjusting unit 34, and adjusts the closing degree of the nozzle by moving the diaphragm 35 up and down.
The differential pressure (pressure loss) is corrected.

At one end of the lower surface 13 of the gas meter body 10 (the left end as viewed from the front), a medium-pressure gas inlet 4 is provided.
0 has been established. An inlet pipe is connected to the medium pressure gas inlet 40. On the other hand, the lower surface 1 of the gas meter body 10
A low-pressure gas outlet 50 is provided at the other end (the right end as viewed from the front) of 3. An outlet pipe is connected to the low-pressure gas outlet 50. The low-pressure adjusting section 34 is screwed in a state housed in the side recess 12 (the recess on the left side as viewed from the front) of the gas meter main body 10. on the other hand,
The low-pressure auxiliary adjusting section 36 is screwed in a state housed in the side recess 12 (the recess on the right side as viewed from the front) of the gas meter main body 10.

The low-pressure adjusting unit 34 includes a medium-pressure gas inlet 40,
The low-pressure adjusting unit 34 communicates with the low-pressure auxiliary adjusting unit 36, and the low-pressure adjusting unit 34 communicates with the measuring chamber 70 via the communication passage 34a. The low-pressure auxiliary adjusting unit 36 is provided in the measuring chamber 7 without passing through piping or the like.
0 and communicates with the low-pressure gas outlet 50,
It communicates with the low pressure adjusting unit 34.

Next, the operation of the present invention will be described. This hybrid gas meter is connected to a medium pressure line (medium pressure equipment). The medium pressure gas enters the medium pressure gas inlet 40 through the inlet pipe. The medium-pressure gas that has entered the medium-pressure gas inlet 40 enters the low-pressure regulator 34. The low-pressure adjusting unit 34 reduces the pressure of the medium-pressure gas to a low-pressure gas. The low-pressure gas enters the measuring chamber 70 through the communication passage 34a, and is sent to the low-pressure auxiliary adjusting unit 36 after being measured in the measuring chamber 70.

The low-pressure auxiliary adjusting unit 36 is provided with a low-pressure gas outlet 5
The outlet pressure of 0 is finally adjusted and the adjusted outlet pressure of the low pressure gas outlet 50 becomes the inlet pressure of the gas consuming device.
That is, the adjusted low-pressure gas is sent to the gas inlet (not shown) of the gas consuming device through the low-pressure gas outlet to the outlet pipe. That is, the present hybrid gas meter can be directly connected to the medium pressure line, can reduce the medium pressure gas to the inlet pressure of the gas consuming device, and can measure the gas supplied to the gas consuming device. .

The low-pressure adjusting unit 34, which is one of the related devices 20,
Is accommodated in the side recess 12 (recess on the left) of the gas meter body 10 and the low-pressure auxiliary adjustment section 36, which is also one of the related devices 20, is accommodated in the side recess 12 (recess on the right) of the gas meter body 10. In comparison with the case where the related device 20 is simply attached to the upper surface or the lower surface 13 of the gas meter main body 10, even if the installation space is not restricted in the vertical direction as a whole and is restricted in the vertical direction,
A gas meter can be easily installed. In addition, since the related devices 20 are housed in the concave portions 12 on both sides of the gas meter main body 10, the size can be reduced without being bulky in both sides of the gas meter main body 10.

Further, since the low-pressure auxiliary adjusting section 36 is disposed near the low-pressure gas outlet section 50, the pressure loss in almost the entire communication passage of the hybrid gas meter from the outlet of the low-pressure adjusting section 34 to the inlet of the low-pressure auxiliary adjuster. Can be substantially eliminated.

Further, since the front surface of the gas meter main body 10 is not used at the place where the related equipment 20 is installed, a mounting space is secured on the front surface of the gas meter main body 10. For example, the case body 60 is provided on the front surface of the gas meter main body 10. 6
0, a control unit 61, a terminal transmission unit 62, and a terminal connection unit 63 are provided therein, and a metering volume display unit 64 and a cutoff display unit 65 can be provided on the front of the case body 60.

Further, a stable gas is supplied to the low-pressure adjusting section 34. However, even if the liquid is re-liquefied for some reason and the re-liquefied gas enters the low-pressure adjusting section 34, the measuring chamber 70
Is located above the low pressure adjusting section 34, the reliquefied gas does not enter the measuring chamber 70. Further, since the measuring chamber 70 is located above the low-pressure adjusting section 34, it is possible to prevent the intrusion of the drain and the adhesion of the drain into the measuring chamber 70 located above the low-pressure adjusting section 34.
The cause of the pressure abnormality can be eliminated.

Further, since the low-pressure adjusting section 34 communicates with the measuring chamber 70 via the communication path 34a without passing through a pipe or the like, the number of pipe connections can be greatly reduced, and leakage from the connection can be prevented. And the number of man-hours for piping can be reduced.

[0025]

According to the first aspect of the present invention, since the pressure regulator for setting the intermediate pressure to the inlet pressure and the measuring chamber are integrated,
The medium pressure line can be directly connected to the hybrid gas meter to connect the low pressure adjustment unit and the measuring chamber without passing through the gas pipe, eliminating the gas pipe and preventing gas leakage. In addition, the number of steps for connecting the gas pipes can be reduced.

According to the second aspect of the present invention, since the low-pressure adjusting section and the low-pressure auxiliary adjusting section are respectively mounted in such a manner as to be accommodated in both side recesses of the gas meter main body, the pressure regulator is connected to the gas meter main body. There is no need to install the gas meter on the upper or lower part of the gas meter, so that both sides of the entire gas meter do not have to be bulky and can be made small, and the gas meter can be easily installed even in installation spaces that are restricted in the vertical direction. Can be.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a hybrid gas meter according to an embodiment of the present invention, which is a cross-sectional view taken along line II of FIG.

FIG. 2 is a front view of a hybrid gas meter according to one embodiment of the present invention.

FIG. 3 is a left side view of the hybrid gas meter according to the embodiment of the present invention.

FIG. 4 is a right side view of the hybrid gas meter according to the embodiment of the present invention.

FIG. 5 is a conceptual diagram showing a conventional gas supply facility.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Gas meter main body 11 ... Side surface 12 ... Side recessed part 13 ... Lower surface 20 ... Related equipment 30 ... Pressure regulator 34 ... Low pressure adjustment part 36 ... Low pressure auxiliary adjustment part 40 ... Medium pressure gas inlet part 50 ... Low pressure gas outlet part 60 ... Case Body 61 ... Control unit 62 ... Terminal transmission device 63 ... Terminal connection unit 64 ... Measurement volume display unit 65 ... Interruption display unit 70 ... Weighing room

Claims (2)

[Claims] 1. A hybrid gas meter in which a gas meter main body and related devices are integrally configured, wherein the related devices are a pressure regulator, a medium pressure gas inlet, and
It has a low-pressure gas outlet, the pressure regulator has a low-pressure regulator and a low-pressure auxiliary regulator, and the low-pressure regulator is a medium-pressure gas inlet, the low-pressure auxiliary regulator, and the gas meter main body. The low-pressure auxiliary adjustment unit communicates with the measurement chamber and the low-pressure auxiliary adjustment unit provided at the top, and the low-pressure auxiliary adjustment unit communicates with the low-pressure adjustment unit, the measurement chamber, and the low-pressure gas outlet unit. Hybrid gas meter. 2. A hybrid gas meter in which a gas meter main body and related equipment are integrally formed, wherein the gas meter main body has side recesses formed by recessing both side surfaces thereof, and the related equipment is configured to adjust pressure. Vessel, medium pressure gas inlet and
It has a low-pressure gas outlet, the pressure regulator has a low-pressure regulator and a low-pressure auxiliary regulator, and the low-pressure regulator is a medium-pressure gas inlet, the low-pressure auxiliary regulator, and the gas meter main body. The low-pressure adjusting section is communicated with a measuring chamber provided at an upper portion, and the low-pressure adjusting section is housed in one side recess on both side faces of the gas meter main body. The low-pressure auxiliary adjusting section includes the low-pressure adjusting section and the measuring section. A hybrid gas meter, which communicates with a chamber and the low-pressure gas outlet, wherein the low-pressure auxiliary adjustment unit is housed in the other side recess on both sides of the gas meter body.