JP2018189568A - Adjuster integrated gas meter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an adjuster-integrated gas meter not required to provide a dedicated hole for inspection and capable of performing inspection of a pressure adjuster and a gas meter stored in the same housing.SOLUTION: An adjuster-integrated gas meter 1 includes: a first flow channel 30 for storing, in the same housing, a pressure adjuster 10 for applying vacuum to a fuel gas from the upstream side and a gas meter 20 for introducing the fuel gas reduced in pressure by the pressure adjuster 10 and accumulating and displaying a used amount of the fuel gas reduced in pressure and sending the fuel gas reduced in pressure downwardly by the pressure adjustor 10; a reservoir part 40 for introducing the fuel gas from the first flow channel 30; and a second flow channel 50 for sending the fuel gas introduced into the reservoir part 40 into an upper gas meter 20. The reservoir part 40 constitutes a drain pot D capable of releasing a lid member 10d from the lower side. When the lid member 10d is released, an output end side of the first flow channel 30 and an input end side of the second flow channel 50 are exposed.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a regulator-integrated gas meter.

  Conventionally, for example, a regulator-integrated gas meter has been proposed in which a straight pipe-type gas meter is connected to an upper portion of a pressure regulator (see Patent Document 1). In such a regulator-integrated gas meter, the pressure regulator and the gas meter are provided close to each other, so that the compactness can be achieved.

JP 2007-127509 A

  The regulator-integrated gas meter described in Patent Document 1 has a connection structure in which a pressure regulator and a straight pipe type gas meter are separately manufactured and connected to each other. Here, in the regulator-integrated gas meter, if the pressure regulator and the gas meter can be accommodated in the same housing without the connecting portion, further compactization can be achieved.

  However, when these are stored in the same housing, the following problems occur. First, the pressure regulator and the gas meter must be inspected separately. For example, in a pressure regulator, a pipe or the like is connected to the outlet side of the pressure regulator to check whether the gas adjustment pressure from the pressure regulator is appropriate, or air is blown to ensure the airtight pressure is appropriate. Or check. Furthermore, in a gas meter, air is blown from the inlet side of the gas meter to check whether the airtight pressure is appropriate. However, when the pressure regulator and the gas meter are housed in the same housing, the outlet of the pressure regulator and the inlet of the gas meter are also housed in the housing. It is necessary to provide it.

  The present invention has been made in order to solve such a conventional problem, and an object of the present invention is to provide a dedicated inspection hole when the pressure regulator and the gas meter are housed in the same housing. It is an object of the present invention to provide a regulator-integrated gas meter that can perform both inspections without necessity.

  The regulator-integrated gas meter according to the present invention includes a pressure regulator that depressurizes the fuel gas from the upstream side, and a fuel gas that is provided above the pressure regulator and decompressed by the pressure regulator. A gas meter that integrates and displays a usage amount is a regulator-integrated gas meter housed in the same housing, and includes a first flow path for sending downward fuel gas decompressed by the pressure regulator, A retention part for introducing fuel gas from one flow path, and a second flow path for sending the fuel gas introduced into the retention part toward the gas meter above, wherein the retention part is a lid member from the lower side Constitutes a removable drain pot, and when the lid member is removed, the outlet side end of the first flow path and the inlet side end of the second flow path are exposed. And

  According to the regulator-integrated gas meter according to the present invention, the fuel gas decompressed by the pressure regulator passes from the first flow path for sending the fuel gas downward through the staying portion and through the second flow path for sending the fuel gas upward. It leads to a gas meter. For this reason, the first flow path, the retention portion, and the second flow path form a U-shaped flow path as a whole. The U-shaped bottom portion is a drain pot from which the lid member can be removed from the lower side, and when the lid member is removed, the outlet side end of the first flow path and the inlet side of the second flow path Since the end portion is exposed, the outlet side of the pressure regulator and the inlet side of the gas meter are exposed using a drain pot, and both inspections can be performed without the need for providing a dedicated inspection hole. A regulator-integrated gas meter can be provided.

  According to the present invention, when the pressure regulator and the gas meter are housed in the same housing, it is possible to provide a regulator-integrated gas meter that can perform both inspections without the need for providing a dedicated inspection hole. it can.

It is a block diagram of the regulator integrated gas meter which concerns on embodiment of this invention, Comprising: The front view is shown. It is a block diagram of the regulator integrated gas meter which concerns on embodiment of this invention, Comprising: The side view is shown. It is a bottom view which shows a state when the cover member 10d shown in FIG.1 and FIG.2 is removed. It is IV-IV sectional drawing of FIG. It is VV sectional drawing of FIG. It is VI-VI sectional drawing of FIG. It is sectional drawing which shows the other example of the drain pot D, (a) shows the 1st example, (b) has shown the 2nd example.

  Hereinafter, the present invention will be described according to preferred embodiments. Note that the present invention is not limited to the embodiments described below, and can be appropriately changed without departing from the spirit of the present invention. Further, in the embodiment described below, there is a part where illustration or description of a part of the configuration is omitted, but details of the omitted technology are within a range in which there is no contradiction with the contents described below. Needless to say, known or well-known techniques are applied as appropriate.

  FIG.1 and FIG.2 is a block diagram of the regulator integrated gas meter which concerns on embodiment of this invention, Comprising: FIG. 1 shows the front view and FIG. 2 has shown the side view. As shown in FIG.1 and FIG.2, the regulator integrated gas meter 1 which concerns on this embodiment is provided with the pressure regulator 10 and the gas meter 20, and the pressure regulator 10 is arrange | positioned below. In addition, the gas meter 20 is arranged on the upper side, and these are housed in the same housing B. Specifically, an upper case B2 that is a front case of the gas meter 20 is attached to the lower case B1 in which the pressure regulator 10 and the flow path portion of the gas meter 20 are integrated, and both are in the same casing B. It has a structure housed in.

  Here, “stored in the same casing B” means that the entire area of the intermediate portion MP serving as a connection portion between the pressure regulator 10 disposed on the lower side and the gas meter 20 disposed on the upper side is covered. In addition, the covering member B3 forms at least a part of the case of the pressure regulator 10 and at least a part of the case of the gas meter 20. Therefore, as long as this condition is satisfied, a case member that covers only the gas meter 20 (only the pressure regulator 10 is also acceptable) may be further provided as in the upper case B2 described in FIGS.

  The pressure regulator 10 sends fuel gas from an LP gas cylinder (not shown) to the downstream gas meter 20 after reducing the pressure. The pressure regulator 10 according to the present embodiment is configured by a two-stage decompression integrated regulator, and includes fuel gas introduction parts 10a and 10b, a primary decompression part 11, and a secondary decompression part 12.

  The fuel gas introduction parts 10a and 10b are introduction parts that are connected to the LP gas cylinder and introduce high-pressure fuel gas. One fuel gas introduction part 10a, 10b is provided on each of the left and right sides of the pressure regulator 10 when viewed from the front, and one or a plurality of LP gas cylinders are connected to each fuel gas introduction part 10a, 10b. . Further, the pressure regulator 10 includes a switching lever 10c on the front surface, and it is possible to select which of the LP gas cylinders connected to the left and right to introduce the fuel gas by operating the switching lever 10c.

  The primary decompression unit 11 performs primary decompression on the high-pressure fuel gas, and the secondary decompression unit 12 performs secondary decompression on the fuel gas primarily decompressed by the primary decompression unit 11. As shown in FIGS. 1 and 2, the primary decompression unit 11 is disposed on the front side (front side) of the secondary decompression unit 12, and the secondary decompression unit 12 is positioned on the back side of the primary decompression unit 11. doing. That is, the pressure regulator 10 according to the present embodiment is a stacked (face-to-face) regulator in which the primary decompression unit 11 and the secondary decompression unit 12 are arranged to overlap in the height direction (see FIG. 2). ing. Here, the height direction is a direction orthogonal to the installation direction of the gas meter 20 with respect to the pressure regulator 10 (that is, the upward direction shown in FIG. 1), and more specifically, the direction in which the fuel gas is introduced from the LP gas cylinder. That is, a direction orthogonal to a plane including (the left-right direction shown in FIG. 1) and the installation direction of the gas meter 20 with respect to the pressure regulator 10 (ie, the upward direction shown in FIG. 1).

  The gas meter 20 integrates and displays the amount of gas used based on a flow rate measured by a flow sensor (reference numeral 25 described later) provided therein, and includes a liquid crystal display unit 21 on the front. The liquid crystal display unit 21 displays the amount of gas used as well as the flow path shutoff by a shutoff valve (reference numeral 23 described later) and the reason thereof. Further, the gas meter 20 includes a return button 22 in the center of the front. The return button 22 is an operation unit for opening the shutoff valve.

  Here, as shown in FIG.1 and FIG.2, the pressure regulator 10 is equipped with the drain pot D from which the cover member 10d can be removed from the downward side. The drain pot D is a structural part for storing and discharging oil or the like that has entered the pressure regulator 10 from the LP gas cylinder, and the oil or the like can be discharged by removing the lid member 10d.

  3 is a bottom view showing a state where the lid member 10d shown in FIGS. 1 and 2 is removed, FIG. 4 is a sectional view taken along line IV-IV in FIG. 3, and FIG. FIG. 6 is a cross-sectional view taken along line V, and FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. 4-6, the cross section of the state which attached the cover member 10d shall be shown.

  As shown in FIGS. 3 to 6, the regulator-integrated gas meter 1 further includes a first flow path 30, a staying part 40, and a second flow path 50. The first flow path 30 is a flow path for sending the fuel gas decompressed by the secondary decompression unit 12 of the pressure regulator 10 downward. The first flow path 30 is connected to the retention part 40.

  The staying part 40 is a part that becomes an airtight space by attaching the lid member 10d. In addition to the introduction of fuel gas through the first flow path 30, oil or the like that has entered the pressure regulator 10 is also introduced into the staying portion 40. For this reason, the retention part 40 functions as a part for storing and discharging oil or the like, that is, a drain pot D.

  The second flow path 50 is a flow path for guiding the fuel gas introduced into the staying portion 40 to the gas meter 20, and is formed to extend upward from the staying portion 40 toward the upper gas meter 20.

  Due to the flow path configuration as described above, the fuel gas from the pressure regulator 10 flows to the gas meter 20 through the first flow path 30 extending downward, the staying portion 40, and the second flow path 50 extending upward in order. It reaches. That is, the fuel gas from the pressure regulator 10 reaches the gas meter 20 through a substantially U-shaped flow path.

  In particular, as shown in FIG. 3, when the lid member 10d is removed, the outlet side end 31 of the first flow path 30 and the inlet side end 51 of the second flow path 50 are exposed to the outside. In this embodiment, when the lid member 10d is removed and viewed from below, both the end portions 31 and 51 are visible. For this reason, for example, a pipe or the like is connected to the outlet side end portion 31 of the first flow path 30 to check whether the adjustment pressure of the pressure regulator 10 is appropriate, or air is blown to ensure the airtight pressure is appropriate. Can be inspected. Similarly, it is possible to inspect whether the airtight pressure of the gas meter 20 is appropriate by blowing air from the inlet side end 51 of the second flow path 50.

  As shown in FIGS. 4 to 6, the gas meter 20 is a so-called straight pipe type gas meter, and includes a shut-off valve 23, a multilayer unit 24, and a flow sensor 25 inside.

  The shutoff valve 23 shuts off the flow of fuel gas in the gas meter 20. The multilayer unit 24 is provided on the downstream side of the shut-off valve 23 and has a structure in which a plurality of flow dividing plates SP are provided inside the square tube. The flow sensor 25 is a so-called ultrasonic sensor, and is a so-called V-path structure sensor attached to the front side of the multilayer unit 24.

  Next, an inspection method for the regulator-integrated gas meter 1 according to the present embodiment will be described. First, the pressure regulator 10 and the gas meter 20 need to be inspected separately. Therefore, at the time of inspection, the lid member 10d is first removed. As a result, the outlet side end 31 of the first flow path 30 and the inlet side end 51 of the second flow path 50 are exposed to the outside.

  Subsequently, inspection pipes or the like are connected to the end portions 31 and 51 of the respective flow paths 30 and 50. As a result, it is possible to inspect whether the adjustment pressure of the gas from the pressure regulator 10 is appropriate, or to inspect whether the airtight pressure is appropriate by blowing air. It is also possible to inspect whether the airtight pressure of the gas meter 20 is appropriate.

  In particular, in the present embodiment, both the outlet side end 31 of the first flow path 30 and the inlet side end 51 of the second flow path 50 are adjacent to each other and exposed in the same direction downward, so both It is also possible to simultaneously connect inspection pipes to the end portions 31 and 51, thereby making it easier to perform the inspection.

  Thus, according to the regulator-integrated gas meter 1 according to the present embodiment, the fuel gas decompressed by the pressure regulator 10 passes through the stagnation section 40 from the first flow path 30 that sends the fuel gas downward. The gas meter 20 is reached through the second flow path 50 that sends the gas upward. For this reason, the 1st flow path 30, the residence part 40, and the 2nd flow path 50 form a U-shaped flow path as a whole. Moreover, the retention part 40 used as a U-shaped bottom part becomes a drain pot from which the cover member 10d can be removed from the lower side. Since the inlet side end 51 of the flow path 50 is exposed, the outlet side of the pressure regulator 10 and the inlet side of the gas meter 20 are exposed using the drain pot D, and it is necessary to provide an inspection hole dedicated to inspection. Therefore, it is possible to provide a regulator-integrated gas meter 1 that can perform both inspections.

  As described above, the present invention has been described based on the embodiments, but the present invention is not limited to the above-described embodiments, and may be modified without departing from the spirit of the present invention, and may be appropriately changed within a possible range. These techniques may be combined.

  For example, the pressure regulator 10 according to the present embodiment is a stacked type two-stage decompression type, but is not limited thereto, and may be a two-stage type arranged in a horizontal direction, or a one-stage type. It may be a thing.

  Further, in the present embodiment, the gas meter 20 is a straight pipe type, but is not limited to this, and may be a gas meter in which the internal flow path is an inverted U-shape as if the existing membrane gas meter is turned upside down. If possible, a gas meter having an L-shaped internal flow path may be used.

  Furthermore, in the present embodiment, the outlet side end 31 of the first flow path 30 and the inlet side end 51 of the second flow path 50 are adjacent to each other. As long as 50 faces the retention part 40, it may be somewhat separated.

  In addition, in the present embodiment, the outlet side end 31 of the first flow path 30 and the inlet side end 51 of the second flow path 50 are exposed in the same direction of the lower side, but this is not limiting, for example, FIG. It may be exposed as shown in FIG. FIG. 7 is a cross-sectional view showing another example of the drain pot D. (a) shows a first example, and (b) shows a second example.

  7A and 7B, the outlet side end 31 of the first flow path 30 and the inlet side end 51 of the second flow path 50 are exposed in different directions. It may be. That is, as shown in FIG. 7A, the outlet-side end portion 31 of the first flow path 30 is exposed facing downward, and the inlet-side end portion 51 of the second flow path 50 is exposed facing sideways. It may be like this. Similarly, as shown in FIG. 7B, the outlet side end 31 of the first flow path 30 and the inlet side end 51 of the second flow path 50 are configured to be exposed in directions facing each other. May be. As described above, the exposure direction of the outlet side end 31 of the first flow path 30 and the inlet side end 51 of the second flow path 50 may be different. As long as they face the outside so that they can be connected, they are not limited to the same direction.

1: regulator integrated gas meter 10: pressure regulators 10a, 10b: fuel gas introduction part 10c: switching lever 10d: lid member 11: primary decompression part 12: secondary decompression part 20: gas meter 21: liquid crystal display part 22: return Button 23: Shut-off valve 24: Multi-layer unit 25: Flow rate sensor 30: First flow path 31: Outlet side end 40: Residence part 50: Second flow path 51: Inlet side end B: Same casing B1: Lower case B2: Upper case B3: Covering member D: Drain pot MP: Intermediate part SP: Dividing plate

Claims (1)

A pressure regulator for depressurizing the fuel gas from the upstream side, and a gas meter provided at an upper portion of the pressure regulator and introducing the fuel gas decompressed by the pressure regulator and integrating and displaying the amount of fuel gas used A regulator-integrated gas meter housed in the same housing,
A first flow path for sending downward the fuel gas decompressed by the pressure regulator;
A retention part for introducing fuel gas from the first flow path;
A second flow path for sending the fuel gas introduced into the staying portion toward the gas meter above,
The staying portion constitutes a drain pot from which the lid member can be removed from the lower side, and when the lid member is removed, the outlet side end of the first flow path and the inlet of the second flow path A regulator-integrated gas meter characterized in that the side end is exposed.

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