TWI629457B - Gas scale - Google Patents

Abstract

本發明提供一種能夠實現小型化及輕量化且計量範圍之擴大之氣量表(1)，前述氣量表(1)對設置於機箱內部之氣體流路中流動之燃料氣體之流量進行計量並累計顯示，並具備：超音波式流速感應器(21a、21b)，向氣體流路內間歇地發送超音波訊號並接收所發送之超音波訊號；以及流量計量部，基於從超音波式流速感應器(21a、21b)發送並被接收之超音波訊號之傳播時間，對在流路內流動之氣體流量進行計量。 The invention provides a gas meter (1) capable of realizing miniaturization and weight reduction and expanding the measurement range. The gas meter (1) measures and cumulatively displays the flow rate of fuel gas flowing in a gas flow path provided inside a cabinet , And equipped with: ultrasonic flow velocity sensors (21a, 21b), intermittently send ultrasonic signals into the gas flow path and receive the transmitted ultrasonic signals; and flow measurement section, based on the ultrasonic flow velocity sensor 21a, 21b) The propagation time of the supersonic signal sent and received, and the flow rate of the gas flowing in the flow path is measured.

Description

氣量表 Gas scale

本發明提供一種氣量表。 The invention provides a gas scale.

以往，提出了設置在燃料氣體之供給方及家庭等需要者側之間，對需要者側所消費之燃料氣體之流量進行計量之氣量表。如此之氣量表中，存在有膜式氣量表，前述膜式氣量表藉由在膜之內外交互地使燃料氣體進行充填及排出而產生往復運動來推動計數器(例如參照專利文獻1)。 In the past, a gas meter installed between a supplier of fuel gas and a consumer, such as a household, to measure the flow rate of the fuel gas consumed by the consumer is proposed. Such a gas meter includes a membrane gas meter, which reciprocates by filling and discharging fuel gas inside and outside the membrane to generate a reciprocating motion to drive a counter (for example, refer to Patent Document 1).

[先前技術文獻] [Prior Technical Literature] [專利文獻] [Patent Literature]

專利文獻1：日本特開11-248506號公報。 Patent Document 1: Japanese Patent Laid-Open No. 11-248506.

然而，膜式氣量表係以膜、齒輪等驅動部為必要之構成，由於驅動部之原因，不但會大型化而且於重量方面都是不利的。更且，膜式氣量表中，由於推動驅動部之關係，產生多餘之壓力損失，導致計量範圍變得狹窄。 However, the membrane gas meter has a necessary structure including a driving unit such as a membrane and a gear. Due to the driving unit, it is not only large-sized but also disadvantageous in terms of weight. Moreover, in the membrane gas meter, due to the relationship between the driving unit, an excessive pressure loss is generated, resulting in a narrow measurement range.

本發明係為了解決這個課題而做出的，其目的係提供一種能夠實現小型化及輕量化並且計量範圍之擴大之氣量表。 The present invention has been made to solve this problem, and its object is to provide a gas meter capable of achieving miniaturization and weight reduction and expanding the measurement range.

本發明之氣量表(10)係對設置於機箱(10)內部之氣體流路(11c)中流動之燃料氣體之流量進行計量並累計顯示，並具備：發送單元(21a、21b)，向前述氣體流路(11c)內間歇地發送超音波訊號；接收單元(21a、21b)，接收藉由前述發送單元(21a、21b)發送之超音波訊號；以及流量計量單元(110)，基於從前述發送單元(21a、21b)發送而藉由前述接收單元(21a、21b)接收之前述超音波訊號之傳播時間，對前述氣體流路(11c)內流動之氣體流量進行計量。 The gas meter (10) of the present invention measures and accumulates the flow rate of the fuel gas flowing in the gas flow path (11c) provided inside the casing (10), and includes: sending units (21a, 21b) Ultrasonic signals are intermittently sent in the gas flow path (11c); receiving units (21a, 21b) receive the ultrasonic signals sent by the sending units (21a, 21b); and the flow measuring unit (110) is based on The transmission unit (21a, 21b) transmits the propagation time of the ultrasonic signal received by the reception unit (21a, 21b) to measure the gas flow rate in the gas flow path (11c).

根據該氣量表不需要膜式氣量表那樣之膜、齒輪等驅動部，防止了因驅動部之原因而導致之大型化、重量化。更且，因不產生藉由推動驅動部而導致之壓力損失，從而能夠實現計量範圍之擴大。因此，能夠提供一種能夠實現小型化及輕量化且計量範圍之擴大之氣量表。 According to this gas meter, a driving part such as a film or a gas meter is not required, and the increase in size and weight due to the driving part is prevented. Moreover, since there is no pressure loss caused by pushing the driving part, the measurement range can be expanded. Therefore, it is possible to provide a gas meter capable of achieving miniaturization and weight reduction and expanding the measurement range.

再者，本發明之氣量表中，較佳為更具備：多層單元(22)，為筒狀體，設置在前述氣體流路(11c)內；前述多層單元(22)具有複數片分流板(22a)，複數片分流沿 著該多層15單元(22)內之燃料氣體之流動方向延伸並將筒內分割為多層；前述發送單元(21a、21b)向前述多層單元(22)內間歇地發送超音波訊號。 Furthermore, the gas meter of the present invention preferably further includes: a multi-layer unit (22), which is a cylindrical body, and is provided in the gas flow path (11c); and the multi-layer unit (22) has a plurality of shunt plates ( 22a), plural pieces of shunt edge The flow direction of the fuel gas in the multi-layer 15 unit (22) extends and divides the barrel into multiple layers; the sending units (21a, 21b) intermittently send ultrasonic signals into the multi-layer unit (22).

根據該氣量表，由於具有將筒內分割為多層之複數片分流板之多層單元，從而多層單元內流動之燃料氣體被整流。再者，由於發送單元係向多層單元內間歇地發送超音波訊號，從而以被整流之燃料氣體為對象進行流量計量。因此，能夠實現流量計量精度之提高。 According to the gas meter, the fuel gas flowing in the multi-layer unit is rectified due to the multi-layer unit having a plurality of splitter plates dividing the inside of the cylinder into multiple layers. Furthermore, since the transmission unit intermittently transmits ultrasonic signals into the multi-layer unit, flow measurement is performed on the rectified fuel gas. Therefore, the accuracy of the flow measurement can be improved.

再者，本發明之氣量表中，較佳為：前述接收單元(21a、21b)設置在隔著前述多層單元(22)而與前述發送單元(21a、21b)對置之一側，直接接收藉由前述發送單元(21a、21b)發送之超音波訊號。 Furthermore, in the gas meter of the present invention, it is preferable that the receiving unit (21a, 21b) is disposed on a side opposite to the transmitting unit (21a, 21b) across the multilayer unit (22) to directly receive Ultrasonic signals sent by the aforementioned sending units (21a, 21b).

根據該氣量表，由於接收單元設置在隔著多層單元而與發送單元對置之一側，且直接接收藉由發送單元發送之超音波訊號，因此，超音波訊號不會被任何物體反射而被接收單元接收。因此，能夠不產生因反射而導致之訊號損失地接收超音波訊號。 According to the gas meter, since the receiving unit is placed on the side opposite to the transmitting unit across the multi-layer unit, and directly receives the ultrasonic signal transmitted by the transmitting unit, the ultrasonic signal is not reflected by any object and is The receiving unit receives. Therefore, it is possible to receive ultrasonic signals without loss of signals caused by reflection.

再者，本發明之氣量表中，較佳為：前述發送單元(21a、21b)及前述接收單元(21a、21b)設置在前述多層單元(22)之同一側，前述接收單元(21a、21b)接收 藉由前述發送單元(21a、21b)發送並在前述多層單元(22)內反射之超音波訊號。 Furthermore, in the gas meter of the present invention, it is preferable that the sending unit (21a, 21b) and the receiving unit (21a, 21b) are provided on the same side of the multilayer unit (22), and the receiving unit (21a, 21b) )receive The ultrasonic signal transmitted by the transmission unit (21a, 21b) and reflected in the multilayer unit (22).

根據該氣量表，發送單元及接收單元設置在多層單元之同一側，接收單元接收藉由發送單元發送並在前述多層單元內反射之超音波訊號。如此，能夠相對於多層單元將發送單元及接收單元設置在同一側並集中配置構成構件，從而實現空間性之提升。 According to the gas meter, the transmitting unit and the receiving unit are provided on the same side of the multi-layer unit, and the receiving unit receives the ultrasonic signal transmitted by the transmitting unit and reflected in the multi-layer unit. In this way, the transmitting unit and the receiving unit can be arranged on the same side with respect to the multi-layer unit, and the constituent members can be centrally arranged, thereby achieving an improvement in spatiality.

根據本發明，能夠提供一種能夠實現小型化及輕量化且計量範圍之擴大之氣量表。 According to the present invention, it is possible to provide a gas meter capable of achieving miniaturization and weight reduction and expanding the measurement range.

1‧‧‧氣量表 1‧‧‧Gauge

1a、2a‧‧‧無線收發機 1a, 2a‧‧‧ wireless transceiver

2‧‧‧中繼器 2‧‧‧Repeater

3‧‧‧氣體管理中心 3‧‧‧ Gas Management Center

10‧‧‧主體單元(機箱) 10‧‧‧Main unit (chassis)

11‧‧‧表身 11‧‧‧watch body

11a‧‧‧氣體流入口 11a‧‧‧Gas inlet

11b‧‧‧氣體流出口 11b‧‧‧Gas outlet

11c‧‧‧氣體流路 11c‧‧‧Gas flow path

11d‧‧‧整流板 11d‧‧‧rectifier board

12‧‧‧下蓋 12‧‧‧ Lower cover

12a‧‧‧凹部 12a‧‧‧recess

12b‧‧‧壁部 12b‧‧‧ Wall

12c‧‧‧第1凹部 12c‧‧‧The first recess

12d‧‧‧第2凹部 12d‧‧‧Second recess

13‧‧‧密封構件 13‧‧‧Seal member

20‧‧‧計量流路單元 20‧‧‧Metering flow unit

21‧‧‧底板部 21‧‧‧Bottom board

21a‧‧‧上游側感應器(超音波式流速感應器、發送單元、接收單元) 21a‧‧‧Upstream sensor (ultrasonic flow sensor, sending unit, receiving unit)

21b‧‧‧下游側感應器(超音波式流速感應器、發送單元、接收單元) 21b‧‧‧ downstream sensor (ultrasonic flow sensor, sending unit, receiving unit)

22‧‧‧多層單元 22‧‧‧Multi-layer unit

22a‧‧‧分流板 22a‧‧‧Shunt

22b‧‧‧網狀板 22b‧‧‧mesh board

23‧‧‧隔板 23‧‧‧Partition

23a‧‧‧板部 23a‧‧‧ Board Department

23b‧‧‧加厚部 23b‧‧‧Thickening

24‧‧‧保護殼 24‧‧‧Protection shell

25、25a、25b‧‧‧濾網 25, 25a, 25b ‧‧‧ filter

25c‧‧‧上表面壁 25c‧‧‧Upper surface wall

26‧‧‧副控制基板 26‧‧‧ Sub-control board

30‧‧‧前蓋 30‧‧‧Front cover

31‧‧‧前玻璃 31‧‧‧Front glass

32‧‧‧復原按鈕 32‧‧‧Reset button

33‧‧‧前表面下部蓋 33‧‧‧Front surface lower cover

40‧‧‧控制基板 40‧‧‧Control board

41‧‧‧顯示部 41‧‧‧ Display

42‧‧‧基板保持板 42‧‧‧Substrate holding plate

50‧‧‧電池 50‧‧‧ battery

60‧‧‧斷流閥 60‧‧‧Breakdown valve

70‧‧‧中繼連接器 70‧‧‧Relay connector

71‧‧‧第1連接器 71‧‧‧ First connector

72‧‧‧第2連接器 72‧‧‧ 2nd connector

73‧‧‧密封隔斷壁 73‧‧‧Seal partition wall

74‧‧‧密封端子 74‧‧‧sealed terminal

80‧‧‧壓力感應器 80‧‧‧pressure sensor

100‧‧‧微型電腦 100‧‧‧Microcomputer

110‧‧‧流量計量部(流量計量單元) 110‧‧‧Flow measurement unit (flow measurement unit)

120‧‧‧單獨功能部 120‧‧‧Separate Function Department

120A‧‧‧關閉異常警告部 120A‧‧‧Close abnormal warning

120B‧‧‧逆流警告部 120B‧‧‧Backflow Warning Department

120C‧‧‧測試關閉部 120C‧‧‧Test Close Department

120D‧‧‧自我診斷功能部 120D‧‧‧Self-diagnosis function department

121‧‧‧邏輯關閉功能部 121‧‧‧Logic Close Function Department

122‧‧‧復原安全確認部 122‧‧‧Recovery Safety Confirmation Department

123‧‧‧感震器作動關閉部 123‧‧‧Shock sensor operation closing section

124‧‧‧流量式微少洩漏判定部 124‧‧‧Flow type minimal leakage judgment

125‧‧‧壓力監視功能部 125‧‧‧pressure monitoring function

126‧‧‧引火登記部 126‧‧‧ Ignition Registration Department

127‧‧‧自損防止部 127‧‧‧Damage Prevention Department

128‧‧‧電池電壓降低判定部 128‧‧‧Battery voltage decrease judgment section

129‧‧‧檢驗有效期間判定部 129‧‧‧Detection Department of Inspection Effective Period

130‧‧‧外部機器連動功能部 130‧‧‧ External Machine Linkage Function Department

131‧‧‧警報器連動關閉部 131‧‧‧ Alarm interlocking and closing section

132‧‧‧連動關閉部 132‧‧‧Interlocking closing department

133‧‧‧連動通報部 133‧‧‧ Linked Notification Department

134‧‧‧脈波輸出部 134‧‧‧Pulse output section

140‧‧‧集中監視功能部 140‧‧‧Central Monitoring Function Department

141‧‧‧個別累計功能部 141‧‧‧Individual cumulative function department

142‧‧‧儀表顯示功能部 142‧‧‧ instrument display function

143‧‧‧預付剩餘量管理部 143‧‧‧Prepaid Surplus Management Department

144‧‧‧自動查表部 144‧‧‧Automatic table reading department

145‧‧‧剩餘量管理部 145‧‧‧Remaining Department

146‧‧‧關閉詳細資料儲存部 146‧‧‧Close detailed data storage

147‧‧‧通訊安全映射儲存部 147‧‧‧Communication Security Map Storage Department

148‧‧‧中心關閉功能部 148‧‧‧ Center Closed Function Department

149‧‧‧緊急關閉功能部 149‧‧‧Emergency shutdown function

140A‧‧‧中心閥開啟功能部 140A‧‧‧Center valve opening function

140B‧‧‧中心加載部 140B‧‧‧ Center Loading Department

140C‧‧‧微少洩漏計時部 140C‧‧‧Minimal Leak Timing Department

140D‧‧‧測試呼叫部 140D‧‧‧Test Call Department

140E‧‧‧使用時間關閉預告部 140E‧‧‧Use time to close the notice department

140F‧‧‧不在確認通報部 140F‧‧‧Not in the notification department

140G‧‧‧大型燃燒器設置通報部 140G‧‧‧Large Burner Installation Notification Department

140H‧‧‧使用量增加減少通報部 140H‧‧‧Notification of increase and decrease in usage

150‧‧‧自動設定功能部 150‧‧‧Automatic setting function

151‧‧‧初期學習部 151‧‧‧Early Learning Department

152‧‧‧增加再學習部 152‧‧‧Add re-learning department

153‧‧‧減少再學習部 153‧‧‧Re-learning Department

GS‧‧‧氣量表系統 GS‧‧‧Gas meter system

圖1係顯示包含本發明之實施形態1之氣量表之氣量表系統概略之構成圖。 FIG. 1 is a block diagram showing the outline of a gas meter system including a gas meter in Embodiment 1 of the present invention.

圖2係顯示圖1所示之氣量表之細節之立體圖。 FIG. 2 is a perspective view showing details of the gas meter shown in FIG. 1.

圖3係圖2所示之氣量表之分解立體圖。 FIG. 3 is an exploded perspective view of the gas meter shown in FIG. 2.

圖4係顯示圖2所示之氣量表之內部構成之剖視圖。 4 is a cross-sectional view showing the internal structure of the gas meter shown in FIG. 2.

圖5係顯示在實施形態1之氣量表中起作用之功能部之功能方塊圖。 FIG. 5 is a functional block diagram showing the functional parts that function in the gas meter of Embodiment 1. FIG.

圖6係圖5所示之單獨功能部之詳細方塊圖。 FIG. 6 is a detailed block diagram of the individual functional parts shown in FIG. 5.

圖7係圖5所示之外部機器連動功能部之詳細方塊圖。 7 is a detailed block diagram of the external device linkage function unit shown in FIG. 5.

圖8係圖5所示之集中監視功能部之詳細方塊圖。 FIG. 8 is a detailed block diagram of the centralized monitoring function shown in FIG. 5.

圖9係圖5所示之自動設定功能部之詳細方塊圖。 9 is a detailed block diagram of the automatic setting function section shown in FIG. 5.

圖10係顯示第2實施形態之氣量表之分解剖視圖。 Fig. 10 is a sectional anatomical view showing a gas meter of the second embodiment.

圖11係顯示圖10所示之氣量表之內部構成之剖面圖。 11 is a cross-sectional view showing the internal structure of the gas meter shown in FIG.

圖12係圖10及圖11所示之中繼連接器之放大側視圖。 12 is an enlarged side view of the relay connector shown in FIGS. 10 and 11. FIG.

以下，按照最佳之實施形態對本發明進行說明。另外，本發明並非局限於以下所示之實施形態，在不脫離本發明之宗旨之範圍，能夠適當變更。再者，在以下所示之實施形態中，存在省略了一部分構成之圖式、說明之地方，關於被省略之技術之細節，在與以下所說明之內容不發生矛盾之範圍內，不言而喻，適用了適當之公知常識或者衆所周知之技術。 Hereinafter, the present invention will be described according to the best embodiment. In addition, the present invention is not limited to the embodiments shown below, and can be appropriately changed without departing from the scope of the present invention. In addition, in the embodiments shown below, there are some drawings and descriptions where a part of the configuration is omitted. Details of the omitted technology are within the scope that does not conflict with the contents described below. As a metaphor, appropriate common knowledge or well-known techniques are applied.

圖1係顯示包含本發明之實施形態1之氣量表之氣量表系統概略之構成圖。圖1所示之氣量表系統GS之構成具備複數個氣量表1、複數個中繼器2、以及氣體管理中心3，在複數個氣量表1及氣體管理中心3之間進行資訊之發送、接收並且進行氣量表1之控制。 FIG. 1 is a block diagram showing the outline of a gas meter system including a gas meter in Embodiment 1 of the present invention. The configuration of the gas meter system GS shown in FIG. 1 includes a plurality of gas meters 1, a plurality of repeaters 2, and a gas management center 3, which transmits and receives information between the plurality of gas meters 1 and the gas management center 3. And the control of the gas meter 1 is performed.

例如，氣量表1及中繼器2分別具有無線收發機 1a、2a，氣量表1之資訊(例如有關查表值、後述之斷流閥60之關閉事態之資訊)係被發送到中繼器2。再者，中繼器2例如以有線方式連接到氣體管理中心3。因此，由中繼器2接收到之氣量表1之資訊被發送到氣體管理中心3。再者，來自氣體管理中心3之資訊(例如控制訊號)，被經由中繼器2發送到各氣量表1。由此，氣體管理中心3能夠遠程控制氣量表1。 For example, the gas meter 1 and the repeater 2 each have a wireless transceiver 1a, 2a, the information of the gas meter 1 (for example, information about the look-up table value, the closing state of the shut-off valve 60 described later) is sent to the repeater 2. Furthermore, the repeater 2 is connected to the gas management center 3 in a wired manner, for example. Therefore, the information of the gas meter 1 received by the repeater 2 is sent to the gas management center 3. Furthermore, the information (such as control signals) from the gas management center 3 is sent to each gas meter 1 via the repeater 2. Thus, the gas management center 3 can remotely control the gas meter 1.

另外，上述中，中繼器2與氣體管理中心3雖然被有線連接，但不局限於此，亦可以無線連接。再者，關於氣量表1及中繼器2亦不局限於無線連接，亦可以有線連接。除此之外，如果可能的話，氣量表1與氣體管理中心3亦可以不經由中繼器2而連接。 In addition, in the above, although the repeater 2 and the gas management center 3 are wiredly connected, it is not limited to this, and may be wirelessly connected. Furthermore, the gas meter 1 and the repeater 2 are not limited to wireless connection, and may be wired connection. In addition, if possible, the gas meter 1 and the gas management center 3 may not be connected via the repeater 2.

圖2係顯示圖1所示之氣量表1之細節之立體圖，圖3係圖2所示之氣量表1之分解立體圖。再者，圖4係顯示圖2所示之氣量表1之內部構成之剖視圖。另外，以下，對針對接受來自氣體罐之氣體供給之LP氣體(Liquefied Petroleum Gas；液化石油氣)之氣量表1進行說明，但對於針對城市氣體之氣量表亦同樣。 FIG. 2 is a perspective view showing details of the gas meter 1 shown in FIG. 1, and FIG. 3 is an exploded perspective view of the gas meter 1 shown in FIG. 2. Furthermore, FIG. 4 is a cross-sectional view showing the internal structure of the gas volume meter 1 shown in FIG. 2. In addition, the following describes the gas meter 1 for LP gas (Liquefied Petroleum Gas; liquefied petroleum gas) that is supplied with gas from a gas tank, but the same applies to the gas meter for city gas.

圖2至圖4所示之氣量表1藉由超音波，對設置於機箱內部之氣體流路(參照後述之元件符號11c)中流動之燃料氣體之流量進行計量並累計顯示。該氣量表1以 主體單元(機箱)10、計量流路單元20、前蓋30、控制基板40、電池50及斷流閥60構成主體。 The gas meter 1 shown in FIGS. 2 to 4 uses ultrasonic waves to measure and accumulate the flow rate of the fuel gas flowing in the gas flow path (refer to element symbol 11c described later) provided inside the cabinet. The gas scale 1 The main body unit (chassis) 10, the metering flow path unit 20, the front cover 30, the control board 40, the battery 50, and the shutoff valve 60 constitute a main body.

主體單元10係由表身11、將表身11之下側開口封閉之下蓋12構成之機箱。表身11由於安裝有下蓋12，被劃定出從氣體流入口11a至氣體流出口11b之彎曲為大致U字形狀之一串之氣體流路11c。下蓋12係大致平板形狀之金屬構件，藉由螺絲緊固從下側固定於表身11。這些表身11及下蓋12雖然由鋁或鋁合金等金屬材料形成，但可能的話亦可以由樹脂形成。另外，在表身11及下蓋12之間介在有橡膠墊等密封構件13來確保氣密性。 The main body unit 10 is a case composed of a watch body 11 and a lower cover 12 which closes the opening on the lower side of the watch body 11. Since the lower body 12 is attached to the watch body 11, the gas flow paths 11 c that are bent into a substantially U-shape from the gas inlet 11 a to the gas outlet 11 b are defined. The lower cover 12 is a metal member having a substantially flat plate shape, and is fixed to the watch body 11 from below by screwing. Although the watch body 11 and the lower cover 12 are formed of metal materials such as aluminum or aluminum alloy, they may be formed of resin if possible. In addition, a sealing member 13 such as a rubber pad is interposed between the watch body 11 and the lower cover 12 to ensure airtightness.

更且，如圖4所示，在表身11安裝有整流板11d。整流板11d係金屬板或樹脂板並安裝在彎曲為大致U字形狀之氣體流路11c中的後述之多層單元22之稍稍上游側。藉由該整流板11d能夠防止亂流對向多層單元22側流動之氣體進行整流。 Furthermore, as shown in FIG. 4, a rectifying plate 11 d is attached to the watch body 11. The rectifying plate 11d is a metal plate or a resin plate and is mounted on the slightly upstream side of the multilayer unit 22 described later in the gas flow path 11c bent into a substantially U-shape. The rectifying plate 11d can prevent turbulent flow from rectifying the gas flowing toward the multilayer unit 22 side.

再次參照圖2。計量流路單元20係由下述構件所構成：底板部21，被載放在下蓋12上，並藉由螺絲緊固等固定在表身11上；及多層單元22，被收容在形成於底板部21之凹部12a內。 Refer to Figure 2 again. The metering channel unit 20 is composed of the following members: the bottom plate portion 21 is placed on the lower cover 12 and is fixed to the watch body 11 by screwing or the like; and the multi-layer unit 22 is housed in the bottom plate In the concave portion 12a of the portion 21.

底板部21在氣量表1之正面側及背面側分別安裝 有超音波式流速感應器(發送單元、接收單元)21a、21b。這些超音波式流速感應器21a、21b相對於氣體之流動方向被稍稍傾斜地安裝，一方成為上游側感應器21a，另一方成為下游側感應器21b。上游側感應器21a與下游側感應器21b對向地配置。再者，前述超音波式流速感應器21a、21b藉由未圖示之配線連接到控制基板40，藉由控制基板40進行超音波訊號之發送等。 The bottom plate portion 21 is installed on the front side and the back side of the gas meter 1, respectively There are ultrasonic flow velocity sensors (transmitting unit, receiving unit) 21a, 21b. These ultrasonic wave velocity sensors 21a and 21b are installed with a slight inclination with respect to the flow direction of the gas, one of them becomes the upstream sensor 21a, and the other becomes the downstream sensor 21b. The upstream sensor 21a is arranged to face the downstream sensor 21b. In addition, the aforementioned ultrasonic flow velocity sensors 21a and 21b are connected to the control board 40 by wiring (not shown), and the control board 40 transmits ultrasonic signals and the like.

多層單元22係在其內部形成有計量流路之截面大致四方形狀之筒狀體，該多層單元22在筒狀體之內部一體地具有將計量流路在上下方向分割之複數個分流板22a。藉由這些分流板22a，對在多層單元22內部流動之氣體進行整流。再者，在多層單元22上，在來自超音波式流速感應器21a、21b之超音波訊號之通過位置(亦即氣量表1之正面側及背面側)形成有開口部，在該開口部設置有網狀之2個網狀板22b。網狀板22b係為了防止在開口部之附近產生漩渦而設置之。另外，多層單元22中，例如，分流板22a及網狀板22b由金屬形成，其他之部分由樹脂等形成。 The multi-layer unit 22 is formed therein with a cylindrical body having a substantially rectangular cross-section of the metering channel. The multilayer unit 22 integrally includes a plurality of flow dividers 22a that divide the metering channel in the vertical direction. The flow plates 22a rectify the gas flowing inside the multilayer unit 22. Furthermore, in the multilayer unit 22, an opening is formed at the passing position of the ultrasonic signals from the ultrasonic flow velocity sensors 21a, 21b (that is, the front side and the back side of the gas meter 1), and is provided in the opening There are two mesh plates 22b in mesh shape. The mesh plate 22b is provided to prevent the generation of vortices near the opening. In addition, in the multilayer unit 22, for example, the splitter plate 22a and the mesh plate 22b are formed of metal, and other parts are formed of resin or the like.

前蓋30係將表身11之外側前表面覆蓋之蓋。在前蓋30與表身11之外表面之間收容有控制基板40、電池50、斷流閥60等。前蓋30與表身11同樣能夠由鋁或鋁合金等金屬材料形成，但亦能夠由與表身11不同之樹脂等 材料形成。 The front cover 30 is a cover that covers the outer front surface of the watch body 11. A control board 40, a battery 50, a shut-off valve 60, etc. are housed between the front cover 30 and the outer surface of the watch body 11. The front cover 30 can be formed of a metal material such as aluminum or aluminum alloy like the watch body 11, but can also be formed of a resin different from the watch body 11 Material formation.

在如此之前蓋30上安裝有前玻璃31，該前玻璃31用於使得能夠對設置於控制基板40之LCD(Liquid Crystal Display；液晶顯示器)、LED(Light Emitting Diode；發光二極體)等顯示部41之顯示內容進行視覺確認。再者，在前蓋30上設置有復原按鈕32，該復原按鈕32係用於將使氣體流路11c為閉塞狀態之斷流閥60設為開放狀態之操作25部。而且，前蓋30在下部具有前表面下部蓋33，藉由摘下該前表面下部蓋33而露出端子臺(未圖示)。在該端子臺上能夠連接圖1所示之無線收發機1a等。 Before this, a front glass 31 is installed on the cover 30, and this front glass 31 is used to enable display of LCD (Liquid Crystal Display), LED (Light Emitting Diode), etc. provided on the control substrate 40. The display content of the section 41 is visually confirmed. In addition, the front cover 30 is provided with a reset button 32 which is an operation portion 25 for opening the shutoff valve 60 for closing the gas flow path 11c to the open state. Furthermore, the front cover 30 has a front lower cover 33 at the lower part, and the terminal block (not shown) is exposed by removing the front lower cover 33. The wireless transceiver 1a shown in FIG. 1 and the like can be connected to the terminal block.

控制基板40具有控制氣量表1之整體之功能，經由基板保持板42安裝在前蓋30之背面側，配置在表身11與前蓋30之間。 The control board 40 has a function of controlling the entire gas meter 1, and is installed on the back side of the front cover 30 via the board holding plate 42, and is arranged between the watch body 11 and the front cover 30.

再者，在控制基板40搭載有：基於來自超音波式流速感應器21a、21b之感應器訊號對氣體流速進行計量之微型電腦100(後述圖5之元件符號100)、未圖示之發送電路、接收電路、及I/F電路等。微型電腦100分別與發送電路及接收電路連接，發送電路及接收電路經由I/F電路分別連接到超音波式流速感應器21a、21b。 Furthermore, the control board 40 is equipped with a microcomputer 100 (element symbol 100 of FIG. 5 described later) for measuring the gas flow rate based on the sensor signals from the ultrasonic flow velocity sensors 21a and 21b, and a transmission circuit not shown , Receiving circuit, and I / F circuit, etc. The microcomputer 100 is connected to a transmission circuit and a reception circuit, respectively, and the transmission circuit and the reception circuit are respectively connected to the ultrasonic flow velocity sensors 21a, 21b via an I / F circuit.

發送電路在微型電腦100之控制下，間歇地發送使超音波訊號產生之訊號驅動2個超音波式流速感應器21a、21b。因此，2個超音波式流速感應器21a、21b係相對於氣體之流動方向，從上游側及下游側之雙方間歇地發送並接收超音波訊號。 Under the control of the microcomputer 100, the transmission circuit intermittently transmits the signal generated by the ultrasonic signal to drive the two ultrasonic wave velocity sensors 21a and 21b. Therefore, the two ultrasonic flow velocity sensors 21a and 21b intermittently transmit and receive ultrasonic signals from both the upstream side and the downstream side with respect to the flow direction of the gas.

接收電路輸入來自接收了超音波訊號之超音波式流速感應器21a、21b之感應器訊號。接收電路內建有將感應器訊號放大到預定之强度之放大器，該放大器之放大率能夠藉由微型電腦100進行調整。藉由放大器放大之感應器訊號被輸入到微型電腦100。 The receiving circuit inputs the sensor signals from the ultrasonic flow velocity sensors 21a and 21b that have received the ultrasonic signals. The receiving circuit has an amplifier that amplifies the sensor signal to a predetermined intensity. The amplification rate of the amplifier can be adjusted by the microcomputer 100. The sensor signal amplified by the amplifier is input to the microcomputer 100.

微型電腦100在每個採樣時間(例如2秒)讀入感應器訊號後，基於由2個超音波式流速感應器21a、21b發送接收之超音波訊號之傳播時間對氣體流速進行計量。更且，微型電腦100在計量之氣體流速上乘以氣體流路之截面積來計量瞬時流量，或算出被計量之瞬時流量之累計值亦即累計流量值。 The microcomputer 100 reads the sensor signal every sampling time (for example, 2 seconds), and measures the gas flow rate based on the propagation time of the ultrasonic signal transmitted and received by the two ultrasonic flow rate sensors 21a, 21b. Furthermore, the microcomputer 100 multiplies the measured gas flow rate by the cross-sectional area of the gas flow path to measure the instantaneous flow rate, or calculates the accumulated value of the measured instantaneous flow rate, that is, the accumulated flow rate value.

電池50對氣量表1之動作供給所需之電力。如此之電池50安裝在表身11之中央附近。斷流閥60關閉氣體流路11c之氣體流入口11a側而使其成為閉塞狀態，係用於停止向設置於家庭等之燃燒器供給氣體之閥門。該斷流閥60與控制基板40連接，微型電腦100基於來自氣 體洩漏警報器之表示氣體洩漏通知之訊號或在氣量表1內部之關閉事態之檢測，來閉塞斷流閥60。 The battery 50 supplies the power required for the operation of the gas meter 1. Such a battery 50 is installed near the center of the watch body 11. The shut-off valve 60 closes the gas inlet 11a side of the gas flow path 11c to be in a closed state, and is a valve for stopping the supply of gas to a burner installed in a home or the like. The shut-off valve 60 is connected to the control board 40, and the microcomputer 100 is based on The body leakage alarm signal indicating the gas leakage notification or the detection of the closing situation inside the gas meter 1 blocks the shut-off valve 60.

圖5係顯示在實施形態1之氣量表1中起作用之功能部之功能方塊圖。另外，在以下之說明中，關於面向LP氣體之功能，亦可以應用能夠應用於針對城市氣體之功能。 FIG. 5 is a functional block diagram showing functional parts that function in the gas meter 1 of the first embodiment. In addition, in the following description, the function for LP gas can also be applied to the function for city gas.

如圖5所示之微型電腦100藉由執行所儲存之程序，從而發揮流量計量部(流量計量單元)110、單獨功能部120、外部機器連動功能部130、集中監視功能部140、以及自動設定功能部150之作用。如上述，流量計量部110具有藉由超音波訊號之發送、接收來計量氣體流量之功能。 The microcomputer 100 shown in FIG. 5 executes the stored program to play the flow measurement unit (flow measurement unit) 110, the individual function unit 120, the external device linkage function unit 130, the centralized monitoring function unit 140, and the automatic setting The function of the function part 150. As described above, the flow measurement unit 110 has a function of measuring the gas flow rate by sending and receiving ultrasonic signals.

單獨功能部120主要係進行沒有與外部機器之連動就能夠執行之控制之功能部。外部機器連動功能部130主要係進行藉由氣量表1與外部機器之連動而能夠執行之控制之功能部，集中監視功能部140主要係進行伴隨著與圖1所示之氣體管理中心3之資訊之發送、接收之控制等之功能部。自動設定功能部150學習設置場所之氣體消耗模式並自動設定各種臨界值、關閉值。 The individual function unit 120 is mainly a function unit that performs control that can be executed without linkage with an external device. The external device linkage function unit 130 is mainly a function unit capable of performing control by linkage between the gas meter 1 and an external device, and the centralized monitoring function unit 140 mainly performs information accompanying the gas management center 3 shown in FIG. 1 The functional part of the control of sending and receiving. The automatic setting function part 150 learns the gas consumption pattern of the installation place and automatically sets various threshold values and shut-off values.

圖6係圖5所示之單獨功能部120之詳細方塊圖。單獨功能部120具備：邏輯關閉功能部121、復原安全確認部122、感震器作動關閉部123、流量式微少洩漏判定部 124、壓力監視功能部125、以及引火登記部126。更且，單獨功能部120具備：自損防止部127、電池電壓降低判定部128、檢驗有效期間判定部129、關閉異常警告部120A、逆流警告部120B、測試關閉部120C、以及自我診斷功能部120D。在這些功能部121至120D動作時，LED、LCD等顯示部41成為表示適當動作之顯示狀態。 FIG. 6 is a detailed block diagram of the individual function unit 120 shown in FIG. 5. The individual function unit 120 includes: a logic shut-off function unit 121, a recovery safety confirmation unit 122, a vibration sensor operation shut-off unit 123, and a flow-type minimal leakage determination unit 124. Pressure monitoring function unit 125 and ignition registration unit 126. Furthermore, the individual function unit 120 includes a self-destruction prevention unit 127, a battery voltage drop determination unit 128, a test validity period determination unit 129, a shutdown abnormality warning unit 120A, a reverse current warning unit 120B, a test shutdown unit 120C, and a self-diagnostic function unit 120D. When these functional units 121 to 120D operate, the display unit 41 such as LED, LCD, etc. becomes a display state indicating proper operation.

邏輯關閉功能部121係在能夠判定為氣體流量之計量資料在邏輯上為異常之情況關閉斷流閥60之功能部，具有合計流量關閉功能、增加流量關閉功能、以及使用時間關閉功能。 The logical shut-off function section 121 is a functional section that closes the shut-off valve 60 when the measurement data that can be determined as the gas flow rate is logically abnormal, and has a total flow shut-off function, an increased flow shut-off function, and a usage time shut-off function.

合計流量關閉功能係如下功能：學習設置場所之氣體之消耗模式，在預定之上限值及下限值之範圍內設定能夠判定為設置場所之氣體之異常大量使用之臨界值並在檢測到該臨界值以上之流量之情況關閉斷流閥60。藉由該功能，例如在氣體總開關誤打開、橡膠管脫出等時能夠關閉斷流閥60。另外，臨界值能夠設定為無階段。 The total flow shut-off function is the following function: learning the gas consumption mode of the installation site, setting a critical value that can be judged as the abnormal large-scale use of the gas in the installation site within the range of the predetermined upper limit value and the lower limit value, and detecting this Close the shut-off valve 60 when the flow is above the critical value. With this function, for example, the shut-off valve 60 can be closed when the gas main switch is opened erroneously or the rubber tube comes out. In addition, the threshold value can be set to no step.

增加流量關閉功能係如下功能：學習設置場所之家庭等之氣體之消耗模式，在預定之上限值及下限值之範圍內設定能夠判定為設置場所之氣體之異常增加之臨界值並在檢測到該臨界值以上之流量增加之情況，關閉斷流閥60。利用該功能，能夠在存在超過設置場所的氣體器具中之需 要最大流量之氣體器具之流量這樣流量增加之情況下，能夠判定為氣體總開關誤打開、橡膠管脫出而關閉斷流閥60。另外，臨界值能夠無階段地設定。 The increase flow shut-off function is the following function: learning the gas consumption pattern of the home of the installation site, setting a critical value that can be determined as an abnormal increase in the gas of the installation site within the predetermined upper limit and lower limit range and detecting When the flow rate above the critical value increases, the shut-off valve 60 is closed. With this function, it can be used in gas appliances that exceed the installation location. When the flow rate of the gas appliance requiring the maximum flow rate is increased in this way, it can be determined that the gas main switch is opened erroneously, the rubber tube is pulled out, and the shut-off valve 60 is closed. In addition, the threshold value can be set in steps.

另外，藉由操作氣量表1之復原按鈕32，藉由將設定器連接到氣量表1並進行設定，或者藉由從氣體管理中心3之訊號發送，能夠抬高合計流量關閉功能及增加流量關閉功能之下限值。 In addition, by operating the reset button 32 of the gas meter 1, by connecting the setter to the gas meter 1 and making settings, or by sending a signal from the gas management center 3, it is possible to raise the total flow shut-off function and increase the flow shut-off Lower limit of function.

使用時間關閉功能係如下功能：在氣體之使用時間如成為關閉值以上之異常地長時間使用氣體之情況下，判斷為忘記關閉氣體器具或因氣體器具之開關之不完全閉合而導致之氣體洩漏，從而關閉斷流閥60。在該使用時間關閉功能中，設定複數個流量區分，對每個流量區分判定氣體之使用時間是否異常地長。複數個流量區分例如由流量區分「1」至「13」構成，表示區分之數值為小之一方成為低流量。更且，使用時間關閉功能具有12個詳細功能。 The usage time shut-off function is the function of: when the gas usage time becomes abnormally long-term use of the gas above the shut-off value, it is determined that the gas appliance has been forgotten to be closed or the gas leak due to the incomplete closing of the gas appliance switch To close the shut-off valve 60. In the use time closing function, a plurality of flow rate divisions are set, and for each flow rate division, it is determined whether the gas usage time is abnormally long. The plurality of flow divisions are constituted by, for example, flow divisions "1" to "13", indicating that the smaller the division value, the lower the flow rate. Moreover, the use time close function has 12 detailed functions.

第1詳細功能係無階段自動設定功能。無階段自動設定功能係如下功能：學習設置場所之氣體之消耗模式，在預定之上限值及下限值之範圍內，無階段地設定能夠判定為氣體之異常之長時間使用之關閉值。 The first detailed function is a stepless automatic setting function. The stepless automatic setting function is the following function: learning the gas consumption mode of the installation site, and setting the shutdown value that can be judged as an abnormal gas for a long period of time within the range of the predetermined upper and lower limits.

第2詳細功能係料理對應功能。料理對應功能係如下 功能：為了防止在微火料理時因使用時間關閉功能而導致斷流閥60被關閉，將流量區分「2」進一步3分割，在被分割之各個各別區分中設定關閉值。具體而言，流量區分「2-1」對應於微火之流量。再者，流量區分「2-2」對應於小爐子、暖爐之使用時之流量，流量區分「2-3」對應於高熱量噴燒器之使用時之流量。 The second detailed function is the cooking function. The corresponding functions of the cuisine are as follows Function: In order to prevent the shut-off valve 60 from being closed due to the use of the time-off function during the micro-fire cooking, the flow rate division "2" is further divided into three, and the closing value is set in each divided division. Specifically, the flow rate division "2-1" corresponds to the flow rate of the micro-fire. Furthermore, the flow rate "2-2" corresponds to the flow rate when using a small furnace or a heater, and the flow rate "2-3" corresponds to the flow rate when using a high-calorie burner.

第3詳細功能係特定燒水器長時間對策功能。特定燒水器時對策功能係如下功能：對應於沒有不完全燃燒防止功能之特定之燒水器(4、5號開放型燒水器)，將流量區分「5」「6」之關閉值固定為預定時間(例如20分鐘)。 The third detailed function is the long-term countermeasure function of the specific boiler. The countermeasure function for the specific water boiler is the following function: corresponding to the specific water boiler without the incomplete combustion prevention function (open type 4 and 5 boiler), the flow rate is divided into "5" and "6" and the closing value is fixed It is a predetermined time (for example, 20 minutes).

第4詳細功能係擴展功能。擴展功能係如下功能：在氣量表1之端子臺上連接了氣體洩漏警報器之前提下，無限延長至關閉之時間。藉由設定器或來自氣體管理中心3之訊號發送來使該擴展功能有效化。再者，在擴展功能被有效化之情況，當氣體警報器被取下時，並在預定時間(例如10分鐘)後擴展功能被無效化。氣體警報器之電源插頭被拔下之情況亦同樣。 The fourth detailed function is an extended function. The extended function is the following function: it is lifted before the gas leakage alarm is connected to the terminal block of the gas meter 1, and the time to close is infinitely extended. The extended function is validated by the setting device or the signal transmission from the gas management center 3. Furthermore, in the case where the extended function is validated, when the gas alarm is removed, and after a predetermined time (for example, 10 minutes), the extended function is invalidated. The same is true when the power plug of the gas alarm is unplugged.

第5詳細功能係警報器未連接檢測功能。警報器未連接檢測功能係如下功能：檢測氣量表1之端子臺是否連接有氣體洩漏警報器。再者，當藉由該功能檢測到氣體洩漏警報器之連接時，微型電腦100在預定之流量區分(例 如流量區分「3」至「13」)中抬高預定之上限值。另外，當氣體洩漏警報器在被連接後成為未連接狀態時，微型電腦100將抬高之上限值恢復到原來之值。 The fifth detailed function is that the alarm is not connected to the detection function. The alarm disconnection detection function is the following function: detecting whether a gas leakage alarm is connected to the terminal block of the gas meter 1. Furthermore, when the connection of the gas leak alarm is detected by this function, the microcomputer 100 distinguishes at a predetermined flow rate (for example If the flow rate is "3" to "13") raise the predetermined upper limit. In addition, when the gas leak alarm becomes unconnected after being connected, the microcomputer 100 restores the upper limit value to the original value.

第6詳細功能係警報器未連接檢測停止功能。警報器未連接檢測停止功能係如下功能：例如屋內沒有氣體器具等在氣體洩漏警報器之設置對象外之消費者住宅設置了儀表之情況，使警報器未連接檢測功能停止。 The sixth detailed function is that the alarm is not connected to the detection stop function. The alarm disconnection detection stop function is the following function: For example, if there is no gas appliance in the house and the meter is installed in the consumer residence outside the gas leakage alarm installation target, the alarm disconnection detection function is stopped.

第7詳細功能係警報器電源插頭拔下警告功能。警報器電源插頭拔下警告功能係如下功能：檢測經由端子臺而連接之氣體洩漏警報器之電源插頭是否拔下。再者，當藉由該功能檢測到氣體洩漏警報器之電源插頭拔下時，微型電腦100將藉由因基於警報器未連接檢測功能之氣體洩漏警報器之連接，將被抬高之上限值恢復到原來之值。 The seventh detailed function is the warning function when the power plug of the alarm is unplugged. The warning function of unplugging the power plug of the alarm is the function of detecting whether the power plug of the gas leakage alarm connected through the terminal block is unplugged. Furthermore, when the power plug of the gas leak alarm detected by this function is unplugged, the upper limit of the microcomputer 100 will be raised by the connection of the gas leak alarm based on the alarm disconnection detection function The value is restored to the original value.

第8詳細功能係第1特定區分使用時間制限功能。第1特定區分使用時間制限功能係如下功能：對於特定之流量區分(例如流量區分「1-2」)設定使用制限時間。在該功能中，能夠將使用制限時間(亦即關閉值)設定為例如30分鐘、60分鐘、120分鐘、180分鐘、300分鐘、及720分鐘之中之任意一個。另外，該功能藉由於與後述之引火登記部126所發揮之功能相比優先度低，因此，藉由引火登記部126所發揮之功能之情況被無效化。 The eighth detailed function is the first specific use time limit function. The first specific division usage time limitation function is the following function: for a specific flow division (for example, flow division "1-2"), the use limitation time is set. In this function, the usage limit time (that is, the off value) can be set to any one of 30 minutes, 60 minutes, 120 minutes, 180 minutes, 300 minutes, and 720 minutes, for example. In addition, since this function has a lower priority than the function performed by the ignition registration unit 126 described below, the function performed by the ignition registration unit 126 is invalidated.

第9詳細功能係第2特定區分使用時間制限功能。第2特定區分使用時間制限功能係如下功能：對於特定之流量區分(例如流量區分「2」)設定使用制限時間。在該功能中，能夠將使用制限時間(亦即關閉值)縮短到例如160分鐘以下，例如能夠設定為30分鐘、60分鐘、120分鐘、及160分鐘中之任意一個。由此，能夠將低流量之使用時間縮短而防止空燒等。 The ninth detailed function is the second specific use time limit function. The second specific division usage time limitation function is the function of setting the usage limitation time for a specific flow division (for example, flow division "2"). In this function, the usage limit time (that is, the off value) can be shortened to, for example, 160 minutes or less, and can be set to any one of 30 minutes, 60 minutes, 120 minutes, and 160 minutes, for example. Thus, the use time of the low flow rate can be shortened to prevent empty burning and the like.

第10詳細功能係使用時間關閉預告功能。使用時間關閉預告功能係如下功能：在氣體之使用時間到達關閉值之預定時間前(例如8分鐘前)，向氣體管理中心3預告。再者，在關閉值為30分鐘以下之情況，例如預定時間被縮短到5分鐘。另外，該功能由於向氣體管理中心3通報預告，因此，亦可以為做為集中監視功能部140之1個來發揮功能。 The tenth detailed function is to use time to turn off the pre-announcement function. The usage time shut-off forecast function is the function of: notifying the gas management center 3 before the gas usage time reaches the predetermined time of the shut-off value (for example, 8 minutes ago). Furthermore, in the case where the shutdown value is 30 minutes or less, for example, the predetermined time is shortened to 5 minutes. In addition, since this function notifies the gas management center 3 of the advance notice, it can also function as one of the centralized monitoring function units 140.

第11詳細功能係第3特定區分使用時間制限功能。第3特定區分使用時間制限功能係如下功能：對於特定之流量區分(例如流量區分「3」至「13」)設定使用制限時間。在該功能中，能夠將使用制限時間(亦即關閉值)設定為例如15分鐘、30分鐘、60分鐘、90分鐘、120分鐘、及160分鐘中之任意一個。另外，在設定之時間低於下限值之情況，以下限值來設定。 The eleventh detailed function is the third specific use time limit function. The third specific division use time limitation function is the following function: for a specific flow division (for example, the flow division "3" to "13"), the use limitation time is set. In this function, the usage limit time (that is, the off value) can be set to any one of 15 minutes, 30 minutes, 60 minutes, 90 minutes, 120 minutes, and 160 minutes, for example. In addition, when the set time is lower than the lower limit, the lower limit is set.

第12詳細功能係上限固定功能。上限固定功能係如下功能：在氣量表1之端子臺上連接有氣體洩漏警報器之前提，將至關閉之時間固定為上限值。藉由設定器或來自氣體管理中心3之訊號發送來使該功能有效化。再者，在該功能被有效化之情況，當氣體警報器被取下時，並在預定時間(例如10分鐘)後上限固定功能被無效化。在氣體警報器之電源插頭拔下之情況亦同樣。 The 12th detailed function is the upper limit fixed function. The upper limit fixing function is the following function: it is mentioned before the gas leakage alarm is connected to the terminal block of the gas meter 1, and the time until closing is fixed to the upper limit value. This function is enabled by the setting device or the signal transmission from the gas management center 3. Furthermore, in the case where the function is activated, when the gas alarm is removed, and after a predetermined time (for example, 10 minutes), the upper limit fixed function is invalidated. The same is true when the power plug of the gas alarm is unplugged.

復原安全確認部122係有如下作用之功能部：因關閉事態之發生而關閉斷流閥60後，在打開斷流閥60之情況(復原按鈕32之操作時、來自氣體管理中心3之閥門打開控制時等)，為確認即使打開斷流閥60是否安全。該復原安全確認部122只在復原指示後之預定時間(例如大約17秒期間)監視壓力及流量，從而判定閥門打開是否安全。另外，在進行了特定之流量區分(例如流量區分「1-2」)之使用時間關閉之情況，不係進行預定時間之安全確認，而係進行更長時間之第2預定時間(例如大約70秒)之安全確認。再者，在安全確認之結果係因氣體器具之忘記關閉等理由而被判定為不安全之情況，將一旦打開之斷流閥60被再次關閉。 The restoration safety confirmation section 122 is a functional section having the following functions: after closing the shut-off valve 60 due to the closing situation, when the shut-off valve 60 is opened (when the reset button 32 is operated, the valve from the gas management center 3 is opened During control, etc.), to confirm whether it is safe to open the shut-off valve 60 or not. The restoration safety confirmation unit 122 monitors the pressure and flow rate only at a predetermined time (for example, about 17 seconds) after the restoration instruction to determine whether it is safe to open the valve. In addition, when the usage time of a specific flow classification (for example, flow classification "1-2") is closed, it is not a safety confirmation for a predetermined time, but a second predetermined time for a longer time (for example, about 70 Seconds) for safety confirmation. Furthermore, when the result of the safety confirmation is judged to be unsafe due to reasons such as forgetting to close the gas appliance, the shut-off valve 60 which is opened once is closed again.

感震器作動關閉部123係如下功能部：在內建之感震器(未圖示)感知到預定震度(例如震度5)以上之地 震之情況，將斷流閥60關閉。該感震器作動關閉部123在施加有大型車輛之行駛所產生之震動時、人接近氣量表1時、異物撞擊到氣量表1時等，不判定為地震，如此對有規則之震動不判定為地震，而對不規則之震動判定為地震。更且，感震器作動關閉部123只在由感震器感知到預定震度以上之地震之時間點前後，存在氣體之使用之情況將斷流閥60關閉。具體而言，感震器作動關閉部123在感知時間點前之預定時間(例如16秒)以內及感知時間點後第2預定時間(例如2分鐘)以內存在氣體之使用時將斷流閥60關閉。而且，感震器作動關閉部123在藉由復原安全確認部122進行之復原安全確認中感知到預定震度以上之地震之情況亦將斷流閥60關閉。 The vibration sensor actuation closing part 123 is a functional part: a built-in vibration sensor (not shown) senses a place with a predetermined vibration (e.g. vibration 5) or more In the event of an earthquake, the shut-off valve 60 is closed. The vibration sensor actuation closing part 123 is not judged to be an earthquake when vibration caused by the running of a large vehicle is applied, when a person approaches the gas meter 1, or when a foreign object hits the gas meter 1, etc., and therefore, it does not determine the regular vibration It is an earthquake, and the irregular vibration is judged as an earthquake. Furthermore, the vibration sensor actuation closing portion 123 closes the shut-off valve 60 only when there is use of gas before and after the time when the vibration sensor senses an earthquake above a predetermined magnitude. Specifically, the vibration sensor actuation shut-off unit 123 shuts off the shut-off valve 60 when gas is used within a predetermined time (e.g., 16 seconds) before the sensing time and a second predetermined time (e.g., 2 minutes) after the sensing time. shut down. In addition, the vibration sensor operation closing unit 123 also closes the shut-off valve 60 when it senses an earthquake of a predetermined magnitude or more during the restoration safety confirmation by the restoration safety confirmation unit 122.

流量式微少洩漏判定部124之功能係：藉由流量來檢測從氣量表1之氣體流出口11b至氣體器具之監視範圍之微少之洩漏。該流量式微少洩漏判定部124在例如預定天數(例如係30天，能夠設定1至30天)連續檢測到微少之流量之情況，進行警告顯示並將斷流閥60關閉。警告顯示持續至進行了重置(reset)操作。在警告顯示中因其他之關閉事態而進行了關閉之情況，一旦成為該關閉事態所導致之關閉顯示狀態，並在復原安全確認後，成為藉由流量式微少洩漏判定部124所決定之警告顯示狀態。再者，流量式微少洩漏判定部124在由引火登記部126進行了引火登記之情況，以不將相當於引火之流量為 做為對象地檢測洩漏之方式發揮作用。而且，氣量表1在警告顯示時間點及從警告顯示經過了第2預定天數(例如60天)之時間點，藉由無線收發機1a向氣體管理中心3通報該情況。 The function of the flow rate minute leakage determination unit 124 is to detect the minute leakage from the gas outlet 11b of the gas meter 1 to the monitoring range of the gas appliance by the flow rate. The flow rate minute leakage determination unit 124 detects a small flow rate continuously for a predetermined number of days (for example, 30 days, which can be set from 1 to 30 days), performs a warning display, and closes the shut-off valve 60. The warning display continues until a reset operation is performed. When the warning display is closed due to other closing events, once it becomes the closed display state caused by the closing event, and after the safety confirmation is restored, it becomes the warning display determined by the flow rate minimal leakage determination unit 124 status. Furthermore, when the flow-type minimal leakage determination unit 124 performs ignition registration by the ignition registration unit 126, the flow equivalent to ignition is not taken as As a way to detect leaks as a target. Then, the gas meter 1 notifies the gas management center 3 of the situation by the wireless transceiver 1a at the time of the warning display and the second predetermined number of days (for example, 60 days) elapsed from the warning display.

壓力監視功能部125係如下功能部：藉由內建之壓力感應器(未圖示)來監視氣體壓力，檢測從設置在氣量表1之上游之壓力調整器至氣體器具之區間之氣體洩漏等。該壓力監視功能部125具備壓力式微少洩漏判定部、調整壓力異常判定部、閉塞壓力異常判定部、壓力降低關閉部、洩漏檢查部、調整壓力資料儲存部、以及閉塞壓力資料儲存部。 The pressure monitoring function unit 125 is a function unit that monitors gas pressure by a built-in pressure sensor (not shown), detects gas leakage from the pressure regulator provided upstream of the gas meter 1 to the gas appliance, etc. . The pressure monitoring function unit 125 includes a pressure-type minimal leakage determination unit, an adjustment pressure abnormality determination unit, an occlusion pressure abnormality determination unit, a pressure reduction shutoff unit, a leak inspection unit, an adjustment pressure data storage unit, and an occlusion pressure data storage unit.

壓力式微少洩漏判定部係基於氣體使用剛停止後之壓力(基本壓力)及之後預定時間(例如15分鐘)間隔計量之壓力以判定微少之氣體之洩漏。具體而言，在以預訂時間間隔進行壓力計量之結果係與基本壓力之值相比，預定值(例如2kPa)以上之壓力上升在預定天數(例如30天)期間一次都沒有之情況，壓力式微少洩漏判定部判定為有微少之洩漏並進行警告顯示。然而，在從前次壓力值到今次壓力值之上升為預定值以上之情況(亦即在預定時間存在預定值以上之壓力上升之情況)，壓力式微少洩漏判定部判定為藉由氣體使用狀況所導致之影響，更新基本壓力之值。 The pressure type minute leak determination unit determines the minute gas leakage based on the pressure (basic pressure) immediately after the gas use is stopped and the pressure measured at a predetermined time interval (for example, 15 minutes) thereafter. Specifically, when the result of pressure measurement at a predetermined time interval is compared with the value of the basic pressure, a pressure rise above a predetermined value (for example, 2kPa) does not occur once during a predetermined number of days (for example, 30 days). The minute leakage judgment unit judges that there is a minute leakage and displays a warning. However, in the case where the increase from the previous pressure value to the current pressure value is more than a predetermined value (that is, when there is a pressure increase of more than a predetermined value at a predetermined time), the pressure-type minimal leakage determination unit determines that the gas usage status The resulting impact updates the value of the basic pressure.

調整壓力異常判定部係基於在使用了氣體器具情況下之調整壓力對壓力調整器之異常進行判定。該調整壓力異常判定部檢測以從氣體流量變化，且預定時間(5分鐘)後之壓力做為調整壓力，對得到了預定範圍(例如2.3至3.3kPa)外之調整壓力之次數進行計數。另外，亦即使1天中得到2次以上預定範圍外之調整壓力，亦計數為1次。調整壓力異常判定部為於計數之數之預定天數(例如30天)達到預定值(例如15)以上之情況，判定壓力調整器係異常並進行警告顯示。警告顯15示持續至進行重置操作。 The adjustment pressure abnormality determination unit determines the abnormality of the pressure regulator based on the adjustment pressure when the gas appliance is used. The adjusted pressure abnormality determination unit detects that the pressure has changed from the gas flow rate for a predetermined time (5 minutes) as the adjusted pressure, and counts the number of times the adjusted pressure outside the predetermined range (eg, 2.3 to 3.3 kPa) is obtained. In addition, even if the adjusted pressure outside the predetermined range is obtained two or more times a day, it is counted as one. The adjustment pressure abnormality determination unit determines that the pressure regulator is abnormal and performs a warning display when the counted number of days (for example, 30 days) reaches a predetermined value (for example, 15) or more. The warning display 15 continues until the reset operation is performed.

閉塞壓力異常判定部基於氣體器具之使用被停止之情況之壓力調整器之閉塞壓力，以判定壓力調整器之異常。在將預定流量以下之氣體器具使用了預定時間(例如5分鐘)以上後，該調整壓力異常判定部檢測停止氣體之使用時之閉塞壓力，對得到之預定壓力(例如3.5kPa)以上之閉塞壓力之連續次數進行計數。閉塞壓力異常判定部係於計數之數達到預定值(例如15)以上之情況，判定為壓力調整器為異常，進行警告顯示。警告顯示持續至進行重置操作。另外，閉塞壓力異常判定部係在預定流量之初始值為500L/h、規定流量(例如210L/h)以下之氣體流量被檢測出之情況，將預定流量更新為規定流量之值。更且，調整壓力異常判定部係在將預定流量更新為規定流量之值 後，在30天以上沒有檢測出規定流量以下之流量之情況，將預定流量恢復到初始值。 The occlusion pressure abnormality determination unit determines the abnormality of the pressure regulator based on the occlusion pressure of the pressure regulator when the use of the gas appliance is stopped. After using a gas appliance below a predetermined flow rate for more than a predetermined time (for example, 5 minutes) or more, the adjusted pressure abnormality determination unit detects the occlusion pressure at the time of stopping the use of gas, and checks the occlusion pressure for the obtained predetermined pressure (for example, 3.5 kPa) Count the number of consecutive times. The occlusion pressure abnormality determination unit determines that the pressure regulator is abnormal when the counted number reaches a predetermined value (for example, 15) or more, and displays a warning. The warning display continues until the reset operation is performed. In addition, the occlusion pressure abnormality determination unit updates the predetermined flow rate to the value of the predetermined flow rate when the gas flow rate of the initial value of the predetermined flow rate is 500 L / h and the predetermined flow rate (for example, 210 L / h) or less is detected. Furthermore, the adjustment pressure abnormality determination unit updates the predetermined flow rate to the value of the predetermined flow rate After that, the flow rate below the prescribed flow rate was not detected for more than 30 days, and the predetermined flow rate was restored to the initial value.

壓力降低關閉部係在壓力降低至預定壓力(例如0.6±0.4kPa之範圍內之任意一個壓力)以下之情況，關閉斷流閥60。該壓力降低關閉部係在從降低到預定壓力以下之時間點至預定時間(例如16秒)前之期間，存在氣體之使用之情況而關閉斷流閥60。更且，壓力降低關閉部係藉由復原安全確認部122於復原安全確認中壓力降低至預定壓力以下之情況，亦關閉斷流閥60。 The pressure reduction closing section closes the shut-off valve 60 when the pressure drops below a predetermined pressure (for example, any pressure within a range of 0.6 ± 0.4 kPa). The pressure reduction closing portion closes the shut-off valve 60 from the time when it falls below the predetermined pressure to before the predetermined time (for example, 16 seconds), when the gas is used. Furthermore, the pressure reduction closing part also closes the shut-off valve 60 by the recovery safety confirmation part 122 when the pressure falls below the predetermined pressure during the recovery safety confirmation.

洩漏檢查部係檢查配管之洩漏之功能部。在存在藉由壓力式微少洩漏判定部之警告顯示之情況，能夠藉由洩漏檢查部進行洩漏之檢查。該洩漏檢查部所進行之檢查步驟如下。首先關閉氣體容器之閥門，將高圧管從閥門取下並放出氣體。接下來將設定器連接到端子臺並發送洩漏檢查要求指令。由此，檢查開始並判定是否有洩漏。接下來，藉由在後述之測試關閉後操作復原按鈕32，將氣量表1恢復到通常之狀態。另外，洩漏檢查部能夠進行將斷流閥60關閉之狀態及打開之狀態之2種檢查。 The leak inspection section is a functional section that inspects pipes for leaks. In the case where there is a warning display by the pressure type minimal leak determination unit, the leak inspection unit can perform leak inspection. The inspection procedure performed by the leak inspection department is as follows. First close the valve of the gas container, remove the high pressure pipe from the valve and release the gas. Next, connect the setter to the terminal block and send a leak check request command. Thus, the inspection starts and determines whether there is a leak. Next, by operating the reset button 32 after the test described later is closed, the gas meter 1 is restored to the normal state. In addition, the leak inspection unit can perform two types of inspections, the state in which the shutoff valve 60 is closed and the state in which it is open.

調整壓力資料儲存部對在藉由調整壓力異常判定部判定有異常之後至被重置操作之期間之調整壓力之最大值及最小值進行儲存。再者，調整壓力資料儲存部在調整壓力 異常判定部沒有檢測出異常而經過了預定天數(例如30天)後將儲存之最大值及最小值之資訊清除。 The adjustment pressure data storage unit stores the maximum value and the minimum value of the adjustment pressure after the abnormality is determined by the adjustment pressure abnormality determination unit until the reset operation. Furthermore, the pressure adjustment data storage unit is adjusting the pressure The abnormality determination unit does not detect an abnormality and clears the stored maximum and minimum information after a predetermined number of days (for example, 30 days).

閉塞壓力資料儲存部對在藉由閉塞壓力異常判定部判定有異常之後至被重置操作之期間之閉塞壓力進行儲存。再者，閉塞壓力資料儲存部在藉由閉塞壓力異常判定部得不到預定壓力以上之閉塞壓力且連續計數被清零後，將儲存之閉塞壓力之資訊清除。 The occlusion pressure data storage unit stores the occlusion pressure after the abnormality is determined by the occlusion pressure abnormality determination unit until the reset operation is performed. Furthermore, the occlusion pressure data storage unit clears the stored occlusion pressure information after the occlusion pressure abnormality determination unit cannot obtain the occlusion pressure above the predetermined pressure and the continuous count is cleared.

引火登記部126係在長時間使用相當於氣體器具之引火之流量之設置場所被利用之功能部，輸入來自設定器之命令指令後，在預定天數(例如14天)期間得到了相當於引火之流量之情況，進行引火登記。在藉由該引火登記部126進行引火登記後，流量式微少洩漏判定部124以不將相當於引火之流量為做為對象地檢測洩漏之方式發揮作用。再者，一旦進行引火登記，便停止對於壓力監視功能部125中之壓力式微少洩漏判定部之功能。另外，相當於引火之流量係指登記流量±α(α為例如10%)。 The ignition registration part 126 is a functional part that is used in a setting place where the flow rate equivalent to the ignition of the gas appliance is used for a long time. After inputting the command from the setter, the ignition equivalent is obtained during a predetermined number of days (for example, 14 days) In case of flow, register for ignition. After ignition registration is performed by the ignition registration unit 126, the flow rate minimal leakage determination unit 124 functions to detect leakage without targeting the flow equivalent to ignition. Furthermore, once the ignition registration is performed, the function of the pressure-type minimal leakage determination unit in the pressure monitoring function unit 125 is stopped. In addition, the flow rate equivalent to ignition is the registered flow rate ± α (α is, for example, 10%).

自損防止部127係防止持續按壓復原按鈕32如此之自損行為之功能部，例如在復原按鈕32之間隙中存在異物而將要使斷流閥60持續打開之情況，當檢測到氣體流量時關閉斷流閥60。由此，間接地向用戶通知：持續打開斷流閥60之行為不能進行，從而防止自損行為。 The self-damage preventing part 127 is a functional part that prevents the self-destructive behavior of continuously pressing the reset button 32, for example, when there is a foreign object in the gap of the reset button 32 and the shut-off valve 60 is to be continuously opened, it is closed when gas flow is detected断流 阀 60。 Shut off valve 60. Thereby, the user is indirectly notified that the continuous opening of the shut-off valve 60 cannot be performed, thereby preventing self-destructive behavior.

電池電壓降低判定部128係如下功能部：對氣量表1之電池50之電壓降到設定值以下之情況進行判定並進行警告顯示。警告顯示持續至進行重置操作。再者，電池電壓降低判定部128在警告顯示後，經過預定天數(例如40天)後關閉斷流閥60。另外，電池電壓降低判定部128在經過預定天數之時間點正在使用氣體之情況，在氣體之使用停止之時間點或經過預定時間(例如24小時)之時間點關閉斷流閥60。再者，氣量表1係在藉由電池電壓降低判定部128之警告顯示中因其他之關閉事態而進行了關閉之情況，進行基於該關閉事態之顯示。另外，在藉由電池電壓降低判定部128關閉了斷流閥60之情況，斷流閥60不能打開。而且，在電池電壓降低判定部128所進行之警告顯示中，測試關閉不能進行，並且能夠在顯示部41確認距進行關閉之剩餘天數。 The battery voltage drop determination unit 128 is a functional unit that determines and displays a warning when the voltage of the battery 50 of the gas meter 1 falls below the set value. The warning display continues until the reset operation is performed. In addition, the battery voltage decrease determination unit 128 closes the shut-off valve 60 after a predetermined number of days (for example, 40 days) after the warning is displayed. In addition, when the battery voltage drop determination unit 128 is using the gas at a time when a predetermined number of days have passed, the shut-off valve 60 is closed at the time when the use of the gas stops or when a predetermined time (for example, 24 hours) elapses. In addition, when the gas volume meter 1 is shut down due to another shut-down state in the warning display by the battery voltage drop determination unit 128, display based on the shut-down state is performed. In addition, when the shutoff valve 60 is closed by the battery voltage drop determination unit 128, the shutoff valve 60 cannot be opened. In addition, in the warning display by the battery voltage drop determination unit 128, the test shutdown cannot be performed, and the number of days remaining until shutdown can be confirmed on the display unit 41.

檢驗有效期間判定部129係如下功能部：在自氣量表1之製造起經過了預定期間(例如10年零6個月)時進行警告顯示，更且預定天數(40天)後進行關閉。 The inspection validity period determination unit 129 is a function unit that performs a warning display when a predetermined period (for example, 10 years and 6 months) has passed since the manufacture of the gas meter 1, and shuts down after a predetermined number of days (40 days).

關閉異常警告部120A係如下功能部：在斷流閥60關閉之狀態下檢測出氣體流量時，判定為斷流閥60之動作不良或不完全閉閥並進行警告顯示。 The abnormal shut-off warning unit 120A is a functional unit that determines that the operation of the shut-off valve 60 is defective or that the valve is not completely closed and performs a warning display when the gas flow rate is detected while the shut-off valve 60 is closed.

逆流警告部120B係如下功能部：在氣量表1之氣體流入口11a與氣體流出口11b被顛倒地配管連接，負之流量被檢測出時，檢測出逆流而進行警告顯示。另外，該警告顯示後，氣體流入口11a與氣體流出口11b沒有正確地配管連接，警告顯示亦不消失。因此，在想要消除該警告顯示之情況，需要進行重置操作。 The reverse flow warning unit 120B is a functional unit that connects the gas flow inlet 11a and the gas flow outlet 11b of the gas meter 1 with pipes reversed, and when a negative flow rate is detected, a reverse flow is detected and a warning display is performed. In addition, after this warning display, the gas inflow port 11a and the gas outflow port 11b are not correctly connected to the pipe, and the warning display does not disappear. Therefore, when you want to eliminate the warning display, you need to perform a reset operation.

測試關閉部120C係如下功能部：藉由使磁鐵接近氣量表1之預定部位，從而進行使斷流閥60關閉動作之測試關閉。在此，氣量表1至被設置到設置場所，處於所謂發貨模式之電力消耗被抑制之休眠狀態。關於該發貨模式，在藉由測試關閉部120C之測試關閉後，藉由操作復原按鈕32使斷流閥60打開來解除。再者，氣量表1在發貨模式被解除後之通常模式下，連續2次進行測試關閉後再次進入發貨模式。 The test closing part 120C is a functional part that closes the shutoff valve 60 by closing the shut-off valve 60 by bringing the magnet close to a predetermined part of the gas meter 1. Here, the gas meter 1 is installed in the installation place, and is in a sleep state in which power consumption in the so-called shipping mode is suppressed. With regard to this shipping mode, after the test by the test closing unit 120C is closed, the shut-off valve 60 is opened by operating the recovery button 32 to be released. In addition, in the normal mode after the shipping mode is released, the gas meter 1 enters the shipping mode again after being tested and closed twice.

自我診斷功能部120D具有儀表異常顯示功能部、及脈動警告顯示部。儀表異常顯示功能部係如下功能部：在流量計量部110或斷流閥60產生某種異常之情況進行顯示。在此，流量計量部110產生異常之情況係指：例如異物之混入、雨水之浸入、氣體與空氣之混氣體狀態、設備故障、急劇之電池電壓之降低等。關於異物之混入、雨水之浸入、及氣體與空氣之混氣體狀態，能夠基於傳播時間、增幅度之異常進行判定。脈動警告顯示部係如下功能部： 在產生了流量之脈動而有可能對氣量表1之功能產生妨礙時，顯示該情況。 The self-diagnosis function unit 120D includes an instrument abnormality display function unit and a pulsation warning display unit. The instrument abnormality display functional unit is a functional unit that displays when a certain abnormality occurs in the flow measurement unit 110 or the shut-off valve 60. Here, the abnormality of the flow measurement unit 110 refers to, for example, the mixing of foreign matter, the infiltration of rain water, the mixed gas state of gas and air, equipment failure, and abrupt battery voltage drop. Regarding the mixing of foreign matter, the infiltration of rainwater, and the mixed gas state of gas and air, it can be determined based on the abnormality of the propagation time and increase range. The pulsation warning display part is the following function part: This situation is displayed when pulsation of the flow rate is likely to interfere with the function of the gas meter 1.

圖7係圖5所示之外部機器連動功能部130之詳細方塊圖。如圖7所示，外部機器連動功能部130具備：警報器連動關閉部131、連動關閉部132、連動通報部133、以及脈波輸出部134。另外，在這些功能部131至134動作時，LED、LCD等顯示部41成為表示適當動作之顯示狀態。 FIG. 7 is a detailed block diagram of the external device linkage function unit 130 shown in FIG. 5. As shown in FIG. 7, the external device interlocking function unit 130 includes an alarm interlocking closing unit 131, an interlocking closing unit 132, an interlocking notification unit 133, and a pulse wave output unit 134. In addition, when these functional units 131 to 134 operate, the display unit 41 such as an LED or LCD becomes a display state indicating proper operation.

警報器連動關閉部131係如下功能部：在經由端子臺連接有氣體洩漏警報器之情況，在氣體洩漏警報器檢測出氣體洩漏時關閉斷流閥60。警報器連動關閉部131在復原安全確認中，氣體洩漏警報器檢測出氣體洩漏之情況，立即關閉斷流閥60。再者，警報器連動關閉部131係藉由對氣體洩漏警報器進行訊號發送，亦能夠從氣體洩漏警報器之音聲輸出部告知氣量表1之狀態(關閉預告、關閉中、復原安全確認中、氣體使用允許等)。 The alarm interlocking closing unit 131 is a functional unit that closes the shut-off valve 60 when the gas leakage alarm detects gas leakage when the gas leakage alarm is connected via the terminal block. The alarm interlocking closing unit 131 detects the gas leakage when the gas leak alarm detects the recovery safety, and immediately closes the shut-off valve 60. In addition, the alarm-linked shut-off unit 131 sends the signal to the gas leak alarm, and can also inform the status of the gas meter 1 from the sound output unit of the gas leak alarm (pre-shutdown, closing, restoration safety confirmation) , Gas use permission, etc.).

連動關閉部132係如下功能部：在從經由端子臺連接之外部機器(例如CO警報器)接收到警報訊號之情況，關閉斷流閥60。再者，連動關閉部132在復原安全確認中從外部機器檢測出警報訊號之情況，立即關閉斷流閥60。 The interlocking closing part 132 is a functional part that closes the shut-off valve 60 when receiving an alarm signal from an external device (for example, a CO alarm) connected via a terminal block. Furthermore, the interlocking closing unit 132 immediately detects the alarm signal from the external device during the restoration safety confirmation, and immediately closes the shut-off valve 60.

連動通報部133係如下功能部：基於來自經由端子臺連接之外部機器(例如帶有發信機之自動切換調整器)之訊號以進行向氣體管理中心3之通報。更且，連動通報部133在氣量表1具有氣體罐之剩餘量管理計數器之情況，基於來自外部機器之訊號，將剩餘量管理計數器重置，或向氣體管理中心3發送氣體罐之更換資訊。 The linked notification section 133 is a functional section for reporting to the gas management center 3 based on a signal from an external device (for example, an automatic switching regulator with a transmitter) connected via a terminal block. Furthermore, when the gas volume meter 1 has a remaining quantity management counter of the gas tank, the linked notification unit 133 resets the remaining quantity management counter based on a signal from an external device, or sends gas tank replacement information to the gas management center 3.

脈波輸出部134係如下功能部：對經由端子臺連接之脈波對應機器發送流量脈波。每發生預定流量(例如1L/脈波、10L/脈波或100L/脈波)就發送流量脈波。 The pulse wave output unit 134 is a functional unit that sends a flow pulse wave to a device corresponding to the pulse wave connected through the terminal block. The flow rate pulse wave is transmitted every time a predetermined flow rate occurs (for example, 1 L / pulse wave, 10 L / pulse wave, or 100 L / pulse wave).

圖8係圖5所示之集中監視功能部140之詳細方塊圖。如圖8所示，集中監視功能部140具備：個別累計功能部141、儀表顯示功能部142、預付剩餘量管理部143、自動查表部144、剩餘量管理部145、以及關閉詳細資料儲存部146。更且，集中監視功能部140具備：通訊安全映射(Map)儲存部147、中心關閉功能部148、緊急關閉功能部149、中心閥開啟功能部140A、中心加載部140B、以及微少洩漏計時部140C。更且，集中監視功能部140包括：測試呼叫部140D、使用時間關閉預告部140E、不在確認通報部140F、大型燃燒器設置通報部140G、以及使用量增加減減少通報部140H。另外，在這些功能部141至140H動作時，LED、LCD等顯示部41成為表示適當動 作之顯示狀態。 FIG. 8 is a detailed block diagram of the centralized monitoring function unit 140 shown in FIG. 5. As shown in FIG. 8, the centralized monitoring function unit 140 includes an individual accumulation function unit 141, a meter display function unit 142, a prepaid remaining amount management unit 143, an automatic meter lookup unit 144, a remaining amount management unit 145, and a closed detailed data storage unit 146. Furthermore, the centralized monitoring function unit 140 includes a communication safety map (Map) storage unit 147, a center closing function unit 148, an emergency closing function unit 149, a center valve opening function unit 140A, a center loading unit 140B, and a minute leak timer unit 140C . Furthermore, the centralized monitoring function unit 140 includes a test call unit 140D, a usage time shutdown notice unit 140E, an absence confirmation notification unit 140F, a large burner installation notification unit 140G, and a usage increase and decrease notification unit 140H. In addition, when these functional parts 141 to 140H are operated, the display parts 41 such as LED and LCD become The status is displayed.

個別累計功能部141係將氣體流量以複數個流量區分之每一個進行累計之功能部。由此，在特定之流量區分之氣體使用時，能夠進行氣體費用之折扣。更詳細而言，個別累計功能部141在將氣體流量以複數個流量區分之每一個進行累計之按流量區分累計功能之外，還包括：繼續使用累計功能、指定時間帶累計功能、合計累計功能、及個別優先設定功能。 The individual accumulation function unit 141 is a function unit that integrates the gas flow rate by dividing each of the plurality of flow rates. As a result, when gas with a specific flow rate is used, the gas fee can be discounted. In more detail, the individual accumulation function unit 141 includes the continuous accumulation function, the specified time band accumulation function, and the total accumulation function in addition to the accumulation function according to the flow rate that accumulates the gas flow by each of the plurality of flow rates. , And individual priority setting function.

繼續使用累計功能係在指定之流量區分中指定量以上之氣體被連續使用之情況，將流量累計之功能。由此，例如能夠區別屬同一流量區分之小爐子及暖爐(熱風機)，進行按氣體器具區別之累計，能夠在特定之氣體器具之使用時進行氣體費用之折扣。 Continuing to use the accumulative function is the function of accumulating the flow rate when the gas above the specified amount is continuously used in the specified flow rate division. Thereby, for example, it is possible to distinguish small stoves and heaters (hot air blowers) belonging to the same flow rate, and accumulate according to the difference of gas appliances, so that gas charges can be discounted when a specific gas appliance is used.

指定時間帶累計功能係對在設定之指定時間帶(星期幾．時間)使用之全部之流量區分之氣體流量進行累計之功能部。由此，能夠在特定之星期幾、時間之氣體使用時進行氣體費用之折扣。 The specified time zone accumulation function is a function unit that accumulates all gas flow rates used in the set specified time zone (day of the week. Time). Thereby, the gas fee can be discounted when the gas is used for a specific day and time.

合計累計功能係如下功能：對在個別累計功能工作時亦即按流量區分累計功能、繼續使用累計功能、及指定時間帶累計功能之任意一個工作時之氣體流量進行累計。由 此，能夠顯示成為在個別累計功能中之折扣對象之流量之累計值。 The total accumulation function is the function of accumulating the gas flow when any individual accumulation function works, that is, according to the flow rate, the accumulation function is continued, the accumulation function continues to be used, and the specified time band accumulation function is used. by In this way, it is possible to display the accumulated value of the flow rate which is the discount target in the individual accumulation function.

個別優先設定功能係如下功能：在按流量區分累計功能、繼續使用累計功能、及指定時間帶累計功能這3個功能之中之2個以上之功能工作之情況，能夠設定其優先順序。藉由該優先順序之設定，在例如按流量區分累計功能及指定時間帶累計功能同時工作之情況，能夠僅使按流量區分累計功能有效化，使指定時間帶累計功能無效化。 The individual priority setting functions are the following functions: When two or more functions among the three functions of accumulating function according to flow rate, continuation of accumulating function, and accumulating function of specified time band are working, the priority order can be set. With the setting of the priority order, for example, when the accumulation function according to the flow rate and the accumulation function in the specified time band work simultaneously, only the accumulation function according to the flow rate can be validated, and the accumulation function in the specified time band can be invalidated.

儀表顯示功能部142係進行個別累計顯示、壓力資訊顯示、及儀表資訊顯示之功能部。 The instrument display function part 142 is a function part that performs individual cumulative display, pressure information display, and instrument information display.

個別累計顯示所顯示之內容係：由按流量區分累計功能、繼續使用累計功能、及指定時間帶累計功能累計之個別之流量累計值。更且，在個別累計顯示中，能夠顯示由預付剩餘量管理部143管理之預付剩餘量。 The contents displayed in the individual cumulative display are: the cumulative value of the individual flow accumulated by the cumulative function divided by the flow rate, the continued use of the cumulative function, and the cumulative function of the specified time band. Furthermore, in the individual cumulative display, the prepaid remaining amount managed by the prepaid remaining amount management unit 143 can be displayed.

由壓力資訊顯示之顯示內容係：當前之壓力值、儲存於調整壓力資料儲存部之調整壓力之最大值及最小值、以及儲存於閉塞壓力資料儲存部之閉塞壓力。 The display contents displayed by the pressure information are: the current pressure value, the maximum and minimum values of the adjustment pressure stored in the adjustment pressure data storage section, and the occlusion pressure stored in the occlusion pressure data storage section.

儀表資訊顯示所顯示之內容係：在藉由電池電壓降低判定部128判定為電池電壓之降低之後至關閉之剩餘天 數、由流量式微少洩漏判定部124或壓力式微少洩漏判定部檢測到微少洩漏之後之經過天數、以及有關斷流閥60之關閉事態之資訊。有關關閉事態之資訊係由哪個功能進行了關閉之資訊、關閉時之日期時間之資訊而構成。 The content displayed by the instrument information display is: the remaining days after the battery voltage decrease determination unit 128 determines that the battery voltage has decreased to the time of shutdown The number, the number of days after the minute leakage is detected by the flow type minute leakage determination unit 124 or the pressure type minute leakage determination unit, and information about the closing state of the shutoff valve 60. The information about the shutdown situation is made up of the information about which function was closed and the date and time when it was closed.

預付剩餘量管理部143係有關預付方式之氣體使用之功能部，前述預付剩餘量管理部143係使預付計數器根據氣體之使用量來計數並在剩餘量達到警告級別時發出預付警告之功能部。再者，預付剩餘量管理部143在剩餘量變成零時關閉斷流閥60。 The prepaid remaining amount management section 143 is a functional section related to the use of gas in a prepaid manner. The aforementioned prepaid remaining amount management section 143 is a functional section that causes a prepaid counter to count according to the amount of gas used and issues a prepaid warning when the remaining amount reaches the warning level. Furthermore, the prepaid remaining amount management unit 143 closes the shutoff valve 60 when the remaining amount becomes zero.

自動查表部144係藉由將氣量表1之累計值向氣體管理中心3發送來進行自動查表之功能部。 The automatic table lookup unit 144 is a functional unit that performs automatic table lookup by sending the accumulated value of the gas volume table 1 to the gas management center 3.

剩餘量管理部145係如下功能部：監視氣體罐之氣體剩餘量，當剩餘量達到警告級別時向氣體管理中心3通報剩餘量警告。剩餘量之警告級別能夠以3等級設定，在氣體罐更換時剩餘量計數器被重置。再者，為了防止忘記重置，亦通報重置要求。 The remaining quantity management unit 145 is a functional unit that monitors the remaining quantity of gas in the gas tank, and notifies the remaining quantity warning to the gas management center 3 when the remaining quantity reaches the warning level. The warning level of the remaining amount can be set in 3 levels, and the remaining amount counter is reset when the gas tank is replaced. Furthermore, in order to prevent forgetting to reset, a reset request is also notified.

關閉詳細資料儲存部146對在儀表顯示功能部142顯示之有關關閉事態之資訊進行儲存。在該關閉詳細資料儲存部146儲存之有關關閉事態之資訊能夠藉由氣體管理中心3、設定器進行讀取。 The shutdown detailed data storage section 146 stores the information about the shutdown situation displayed on the meter display function section 142. The information about the shutdown situation stored in the shutdown detailed data storage unit 146 can be read by the gas management center 3 and the setting device.

通訊安全映射儲存部147係對在將關閉、警告之安全資料向氣體管理中心3發送時使用之映射資料進行儲存。例如在將預定之警告內容向氣體管理中心3發送之情況，將對應於映射資料之位資料向氣體管理中心3發送。氣體管理中心3具有同一映射，將接收到之位資料與映像對照從而掌握預定之警告內容。 The communication safety map storage unit 147 stores the map data used when the safety data of shutdown and warning is sent to the gas management center 3. For example, when the predetermined warning content is sent to the gas management center 3, the bit data corresponding to the mapping data is sent to the gas management center 3. The gas management center 3 has the same map, and compares the received bit data with the map to grasp the predetermined warning content.

中心關閉功能部148係在接收到來自氣體管理中心3之中心關閉要求時關閉斷流閥60之功能部。在由中心關閉功能部148將斷流閥60關閉之情況，只要沒有輸入來自氣體管理中心3或設定器之復原許可要求之信號，斷流閥60不能打開。 The center closing function unit 148 is a function unit that closes the shutoff valve 60 when receiving a center closing request from the gas management center 3. When the shut-off valve 60 is closed by the center shut-off function unit 148, the shut-off valve 60 cannot be opened as long as the signal from the gas management center 3 or the reset permission request is not input.

緊急關閉功能部149係在接收到來自氣體管理中心3之緊急關閉要求時關閉斷流閥60之功能部。在藉由緊急關閉功能部149將斷流閥60關閉之情況，藉由操作復原按鈕32能夠打開斷流閥60。 The emergency shutdown functional unit 149 is a functional unit that closes the shut-off valve 60 when receiving an emergency shutdown request from the gas management center 3. When the shut-off valve 60 is closed by the emergency shut-off function unit 149, the shut-off valve 60 can be opened by operating the recovery button 32.

中心閥開啟功能部140A係如下功能部：在氣體管理中心3根據來自設置場所之用戶之請求而發送了斷流閥60之打開訊號之情況，將前述斷流閥60之打開信號接收並打開斷流閥60。 The central valve opening function unit 140A is a functional unit that receives the opening signal of the shut-off valve 60 and opens it when the gas management center 3 sends the opening signal of the shut-off valve 60 according to the request from the user of the installation site流 阀 60。 Flow valve 60.

中心加載部140B係接收來自氣體管理中心3之訊號來使特定之功能施展或停止之功能部。另外，對於各種功能，亦能夠根據來自設定器之指令或者亦藉由復原按鈕32之操作而施展或停止。 The center loading unit 140B is a functional unit that receives a signal from the gas management center 3 to perform or stop a specific function. In addition, various functions can also be performed or stopped according to commands from the setter or also by the operation of the reset button 32.

微少洩漏計時部140C係將由流量式微少洩漏判定部124及壓力式微少洩漏判定部檢測到微少洩漏之後之經過天數向氣體管理中心3、設定器進行確認之功能部。 The minute leakage timing unit 140C is a functional unit that checks the number of days after the minute leakage is detected by the flow type minute leakage judgment unit 124 and the pressure type minute leakage judgment unit to the gas management center 3 and the setter.

測試呼叫部140D係具有如下作用之功能部：藉由連接於端子臺之無線收發機1a與氣體管理中心3進行測試通訊，以確認連接狀態是否正常。 The test call part 140D is a functional part having the following functions: the wireless transceiver 1a connected to the terminal block performs test communication with the gas management center 3 to confirm whether the connection status is normal.

使用時間關閉預告部140E係如下功能部：在由使用時間關閉預告功能進行預告通報之預定時間(例如2分鐘)前，從氣量表1對聲音型警報器進行輸出，並從聲音型警報器輸出預告警報。 The usage time off-announcement part 140E is a function part that outputs a sound-type alarm from the gas meter 1 and outputs it from the sound-type annul before a predetermined time (for example, 2 minutes) for the advance notification by the use-time off-announcement function Pre-alarm report.

不在確認通報部140F係如下功能部：被活用於不在確認、獨居之高齡者之安全與否確認，氣體使用量為零之日子連續地持續了預定天數(例如能設定為1天至15天)時，進行通報。 The absence confirmation report section 140F is a functional department that is used for the confirmation of the safety of elderly persons living alone or not, and the gas consumption is zero for a continuous number of days (for example, it can be set from 1 to 15 days) ), Notify.

大型燃燒器設置通報部140G係在確認了流量區分 「12」(相當於16號熱水器)以上之氣體器具時向氣體管理中心3進行通報之功能部。 The 140G system of the large burner installation notification section has confirmed the flow rate classification A functional unit that notifies the gas management center 3 when a gas appliance above "12" (equivalent to No. 16 water heater).

使用量增加減少通報部140H係在後述之使用時間關閉之增加再學習及減少再學習成立時向氣體管理中心3進行通報之功能部。 The usage increase and decrease notification unit 140H is a functional unit that notifies the gas management center 3 when the increase re-learning and the decrease re-learning after the use time is described later are established.

圖9係圖5所示之自動設定功能部150之詳細方塊圖。如圖8所示，自動設定功能部150具備：初期學習部151、增加再學習部152、以及減少再學習部153。 FIG. 9 is a detailed block diagram of the automatic setting function unit 150 shown in FIG. 5. As shown in FIG. 8, the automatic setting function unit 150 includes an initial learning unit 151, an increased re-learning unit 152, and a reduced re-learning unit 153.

初期學習部151係進行初期學習之功能部，其中，初期學習係在設置了氣量表1之後預定期間(例如前期3天及後期11天共計14天)，設定合計流量關閉功能之臨界值(關閉值)、增加流量關閉功能之臨界值(關閉值)、及使用時間關閉功能之臨界值(關閉值)。在解除了發貨模式後，在檢測出預定流量(例如21L/h)以上之流量之情況開始初期學習。關於使用時間關閉功能之臨界值，對每一個流量區分進行設定。在特定之流量區分中，在整個預定期間沒有得到該區分內之流量之情況，對於該流量區分，採用下限值為做為臨界值。再者，亦即使在初期學習中，當檢測出特定值以上之流量、使用時間時關閉斷流閥60，中止初期學習。在被中止之情況，再次進行再次預定期間之初期學習。 The initial learning unit 151 is a functional unit that performs initial learning. The initial learning unit sets the critical value of the total flow shut-off function for a predetermined period after the gas meter 1 is installed (for example, a total of 14 days in the first 3 days and a later 11 days). Value), increase the critical value (shutdown value) of the flow shut-off function, and the critical value (shutdown value) of the shut-off function with time. After the shipping mode is released, initial learning is started when a flow rate above a predetermined flow rate (for example, 21 L / h) is detected. Regarding the critical value of the use time shut-off function, set for each flow rate division. In a specific flow classification, if the flow within the classification is not obtained during the entire predetermined period, the lower limit value is used as the critical value for the flow classification. Furthermore, even in the initial learning, when the flow rate or the usage time exceeding a certain value is detected, the shut-off valve 60 is closed, and the initial learning is suspended. In case of suspension, the initial study of the scheduled period will be conducted again.

增加再學習部152係如下功能部：在藉由初期學習設定了臨界值後，在設置場所之氣體之消耗模式發生變化從而氣體消耗量增加之情況，根據該變化來設定新之臨界值。增加再學習部152進行預定期間(例如7天)之再學習，當在預定期間之中之2天以上檢測到監視級別以上之流量值、使用時間時，判定為增加再學習已成立並更新臨界值。 The additional re-learning unit 152 is a functional unit that sets a new threshold value based on the change after the initial value is set by initial learning and the gas consumption pattern at the installation site changes and the gas consumption increases. The increased re-learning unit 152 performs re-learning for a predetermined period (for example, 7 days), and when a flow value or usage time above the monitoring level is detected for more than 2 days during the predetermined period, it is determined that increased re-learning has been established and the threshold is updated value.

減少再學習部153係如下功能部：在藉由初期學習設定了臨界值後，在設置場所之氣體之消耗模式發生變化從而氣體消耗量減少之情況，根據該變化來設定新之臨界值。減少再學習部153將檢測監視級別以上之流量值、使用時間之計時器重置，當沒有檢測到監視級別以上之流量值、使用時間而計時器達到預定天數(例如28天)時，判定為減少再學習已成立並更新臨界值。 The reduction re-learning unit 153 is a functional unit that sets a new threshold value based on the change after the threshold value is set by initial learning, and when the gas consumption pattern at the installation site changes and the gas consumption decreases. The reduction re-learning unit 153 resets the timer that detects the flow value and usage time above the monitoring level, and when the flow value and usage time above the monitoring level are not detected and the timer reaches a predetermined number of days (for example, 28 days), it is determined as Reduced relearning has been established and updated thresholds.

另外，自動設定功能部150在前述之外，即使在藉由合計流量關閉功能、增加流量關閉功能、及使用時間關閉功能進行了關閉之情況，亦進行再學習。更且，自動設定功能部150即使在合計流量關閉功能及增加流量關閉功能之下限值被抬高之情況、在由特定燒水器長時間對策功能將關閉值固定之情況、由擴展功能將至關閉之時間無制限地延長了情況、以及藉由警報器未連接檢測功能檢測 到氣體洩漏警報器之連接從而抬高了預定之上限值之情況，亦進行再學習。相關該4個情況之再學習稱為强制再學習。 In addition to the above, the automatic setting function unit 150 performs re-learning even when it is closed by the total flow closing function, the increased flow closing function, and the usage time closing function. In addition, the automatic setting function unit 150 even when the lower limit of the total flow shut-off function and the increased flow shut-off function is raised, when the shut-off value is fixed by the long-term countermeasure function of a specific boiler, the extended function will The time to turn off unconditionally prolongs the situation and detects by the alarm disconnection detection function If the connection to the gas leak alarm raises the predetermined upper limit, re-learning is also performed. Re-learning related to these four situations is called compulsory re-learning.

另外，在前述中對進行重置操作進行了說明，但對於重置操作，操作可以根據各個重置對象而不同，亦可以相同。 In addition, the reset operation has been described in the foregoing, but for the reset operation, the operation may be different according to each reset object, or may be the same.

接下來，對實施形態1之氣量表1之組裝方法及發貨方法進行說明。首先，操作者對底板部21之主體安裝上游側感應器21a及下游側感應器21b。再者，準備收容有複數個分流板22a且安裝有網狀板22b之多層單元22，並收容到底板部21內之凹部12a。由此，製造計量流路單元20。 Next, the assembly method and delivery method of the gas meter 1 of Embodiment 1 will be described. First, the operator attaches the upstream sensor 21 a and the downstream sensor 21 b to the main body of the bottom plate portion 21. In addition, a multilayer unit 22 in which a plurality of manifold plates 22a are installed and a mesh plate 22b is mounted is prepared, and is accommodated in the concave portion 12a in the bottom plate portion 21. Thus, the metering channel unit 20 is manufactured.

接下來，操作者將整流板11d螺絲緊固到表身11，之後，將計量流路單元20螺絲緊固到表身11。接下來，操作者以介在有密封構件13之狀態將下蓋12螺絲緊固到表身11。 Next, the operator tightens the screw of the rectifying plate 11d to the watch body 11, and thereafter, screws the metering flow path unit 20 to the watch body 11. Next, the operator tightens the lower cover 12 to the watch body 11 with the sealing member 13 interposed.

之後，操作者將壓力感應器及斷流閥60以能夠確保高氣密性之方式安裝在表身11之前面開口部(與氣體流路11c相連之開口部)。接下來，將搭載有顯示部41及微型電腦100等之控制基板40安裝在基板保持板42之 前面側，將電池50安裝在基板保持板42之背面側。再者，使控制基板40與各種構件之連接器嵌合。然後，安裝接地金屬件(未圖示)。 After that, the operator attaches the pressure sensor and the shut-off valve 60 to the front opening of the watch body 11 (the opening connected to the gas flow path 11c) so as to ensure high airtightness. Next, the control board 40 mounted with the display unit 41 and the microcomputer 100 is mounted on the board holding plate 42 On the front side, the battery 50 is mounted on the back side of the substrate holding plate 42. Furthermore, the control board 40 is fitted with connectors of various members. Then, install a grounding metal (not shown).

接下來，將防蟲濾網(未圖示)、及前玻璃31安裝到前蓋30，並且貼上用於確保防水性之密封墊。接下來，相對於前蓋30安裝復原按鈕32。之後，檢查前玻璃31是否被高氣密性地安裝於前蓋30，經由該檢查，將前蓋30安裝到表身11。 Next, an insect-repellent filter (not shown) and the front glass 31 are attached to the front cover 30, and a gasket for ensuring waterproofness is attached. Next, the reset button 32 is attached to the front cover 30. Thereafter, it is checked whether the front glass 31 is attached to the front cover 30 with high airtightness, and through this inspection, the front cover 30 is attached to the watch body 11.

接下來，操作者進行儀表設定及發貨前檢查。在設定及檢查中，進行零點修正、流量修正、檢定及加封印。之後，操作者係相對於氣體流入口11a及氣體流出口11b安裝金屬蓋(未圖示)，貼上標準合格證、特定機構(在日本係日本氣體機器檢查協會)之認證標簽。 Next, the operator performs instrument settings and pre-shipment inspection. In setting and checking, perform zero point correction, flow correction, verification and sealing. After that, the operator attaches a metal cover (not shown) to the gas inlet 11a and the gas outlet 11b, and affixes a standard certificate and a certification label of a specific organization (in Japan, Japan Gas Equipment Inspection Association).

接下來，操作者在使用端子臺進行了發貨前設定後，進行最終檢查，安裝前表面下部蓋33來遮蔽端子臺。最後，操作者將使用說明書等與氣量表1一起進行包裝。然後，操作者將包裝物發貨。 Next, after performing pre-shipment settings using the terminal block, the operator performs a final inspection and installs the front surface lower cover 33 to cover the terminal block. Finally, the operator packs the instruction manual and the like with the gas meter 1. Then, the operator ships the package.

如上所述，根據實施形態1之氣量表1，不需要膜式氣量表那樣之膜、齒輪等驅動部，防止了因驅動部之原因而導致之大型化、重量化。更且，不發生因推動驅動部而 產生之壓力損失，能夠實現計量範圍之擴大。因此，能夠提供一種能夠實現小型化及輕量化且計量範圍之擴大之氣量表1。 As described above, according to the gas meter 1 of the first embodiment, there is no need for a driving section such as a membrane type gas meter such as a film or a gear, which prevents the driving section from increasing in size and weight. Moreover, it does not happen that the drive unit is pushed The resulting pressure loss can expand the measurement range. Therefore, it is possible to provide a gas meter 1 capable of achieving miniaturization and weight reduction and expanding the measurement range.

接下來，說明本發明之實施形態2。實施形態2之氣量表1與實施形態1之氣量表同樣，但一部分構成等不同。以下，說明與實施形態1之差異點。 Next, Embodiment 2 of the present invention will be described. The air volume meter 1 of the second embodiment is the same as the air volume meter of the first embodiment, but part of the configuration is different. The differences from the first embodiment will be described below.

圖10係顯示實施形態2之氣量表1之分解剖視圖，圖11係顯示圖10所示之氣量表1之內部構成之剖面圖。另外，關於實施形態2之氣量表1之外觀，由於與圖2所示之外觀相同，因此將說明省略。再者，關於以下之實施形態2，亦與實施形態1相同，對針對接受來自氣體罐之氣體供給之LP氣體之氣量表1進行說明，但對於針對城市氣體之氣量表亦同樣。 FIG. 10 is a sectional anatomical view of the gas meter 1 of Embodiment 2, and FIG. 11 is a cross-sectional view showing the internal structure of the gas meter 1 shown in FIG. The appearance of the gas volume meter 1 according to the second embodiment is the same as the appearance shown in FIG. 2, so the description will be omitted. In addition, the second embodiment below is the same as the first embodiment, and the gas quantity table 1 for the LP gas receiving the gas supply from the gas tank will be described, but the same is true for the gas quantity table for city gas.

如圖10及圖11所示，第2實施形態之氣量表1與實施形態1之氣量表相比較，下蓋12及計量流路單元20之構成不同，並且具有新之中繼連接器70。另外，在圖10及圖11中省略了電池50之圖式。再者，圖10中顯示了在實施形態1中省略了圖式之壓力感應器80。 As shown in FIGS. 10 and 11, the gas meter 1 of the second embodiment is different from the gas meter of the first embodiment in that the configuration of the lower cover 12 and the metering channel unit 20 is different, and the new relay connector 70 is provided. In addition, the drawings of the battery 50 are omitted in FIGS. 10 and 11. In addition, FIG. 10 shows the pressure sensor 80 whose illustration is omitted in the first embodiment.

在圖10所示之例中，下蓋12形成有沿著氣體之流動方向長條之凹部12a。更且，下蓋12在凹部12a之長 邊方向中央部具有壁部12b。壁部12b將凹部12a隔成入口側之第1凹部12c及出口側之第2凹部12d，其高度小於凹部12a之深度。另外，凹部12a為做為在水流入到氣體流路11c內之情況之盛水部而發揮功能。 In the example shown in FIG. 10, the lower cover 12 is formed with a long concave portion 12a along the gas flow direction. Furthermore, the length of the lower cover 12 at the recess 12a The central portion in the lateral direction has a wall portion 12b. The wall portion 12b divides the concave portion 12a into a first concave portion 12c on the entrance side and a second concave portion 12d on the exit side, and its height is smaller than the depth of the concave portion 12a. In addition, the concave portion 12a functions as a water holding portion when water flows into the gas flow path 11c.

再者，計量流路單元20更具備介在於下蓋12與多層單元22之間之隔板23(密封構件)。隔板23被載置在下蓋12之壁部12b上。在該隔板23上具有：水平配置在壁部12b上之平板狀之板部23a；及設置在氣量表1之前後方向端部之2個加厚部23b。多層單元22被配置在2個加厚部23b之間，且位於板部23a上。另外，雖然省略了圖式，但在實施形態2中，在多層單元22中亦內建有複數個分流板，在前後方向將計量流路分割。 Furthermore, the metering channel unit 20 further includes a partition 23 (sealing member) interposed between the lower cover 12 and the multilayer unit 22. The partition plate 23 is placed on the wall portion 12b of the lower cover 12. The partition plate 23 has a flat plate portion 23a arranged horizontally on the wall portion 12b, and two thickened portions 23b provided at the front and rear end portions of the gas meter 1. The multilayer unit 22 is arranged between the two thickened portions 23b, and is located on the plate portion 23a. In addition, although the illustration is omitted, in the second embodiment, a plurality of flow dividing plates are also built in the multilayer unit 22, and the metering flow path is divided in the front-rear direction.

更且，計量流路單元20具備保護殼24及2個濾網25。 Furthermore, the metering channel unit 20 includes a protective case 24 and two filters 25.

保護殼24如圖11所示，對內部之副控制基板26及超音波式流速感應器21a、21b進行保護。再者，在實施形態2中，超音波式流速感應器21a、21b被設置為：能夠將從一方側發送之超音波訊號在多層單元22之下表面反射且在另一方側接收。亦即，超音波式流速感應器21a、21b被傾斜地配置，使得超音波訊號之路徑呈V字形狀。具體而言，上游側感應器21a沿著從氣體流入口11a向著 第2凹部12d之斜方向(正面觀察時大致呈四方形狀之氣量表1之第1對角線方向)來配置，下游側感應器21b沿著從氣體流出口11b向著第1凹部12c之斜方向(正面觀察時大致呈四方形狀之氣量表1之第2對角線方向)來配置。由此，超音波訊號之傳播路徑呈V字形狀。更且，副控制基板26搭載有如下功能：從超音波式流速感應器21a、21b之傳播時間算出氣體流速，並從算出之氣體流速求出氣體流量。因此，在圖10所示之控制基板40中，沒有搭載這些功能，實施形態2之控制基板40基於從副控制基板26接收之流量之資訊來進行累計。 As shown in FIG. 11, the protective case 24 protects the internal sub-control board 26 and the ultrasonic flow velocity sensors 21a and 21b. Furthermore, in the second embodiment, the ultrasonic flow velocity sensors 21a and 21b are provided so that the ultrasonic signal transmitted from one side can be reflected on the lower surface of the multilayer unit 22 and received on the other side. That is, the ultrasonic flow velocity sensors 21a and 21b are arranged obliquely so that the path of the ultrasonic signal has a V-shape. Specifically, the upstream side sensor 21a is directed from the gas inlet 11a toward the The second concave portion 12d is arranged in an oblique direction (the first diagonal direction of the gas meter 1 having a substantially rectangular shape when viewed from the front), and the downstream side sensor 21b is along the oblique direction from the gas outlet 11b toward the first concave portion 12c (In the second diagonal direction of the gas meter 1 having a substantially rectangular shape when viewed from the front). Thus, the propagation path of the ultrasonic signal has a V-shape. Furthermore, the sub-control board 26 is equipped with a function of calculating the gas flow rate from the propagation time of the ultrasonic flow rate sensors 21a and 21b, and obtaining the gas flow rate from the calculated gas flow rate. Therefore, the control board 40 shown in FIG. 10 is not equipped with these functions, and the control board 40 of the second embodiment performs accumulation based on the flow rate information received from the sub-control board 26.

2個濾網25係取代圖4所示之整流板11d而設置之。第1濾網25a配置在第1凹部12c之上部，第2濾網25b配置在第2凹部12d之上部。各濾網25之構成為：相對於在上下方向延伸之四方形狀之筒構件設置具有氣體通路用之開口之上表面壁25c。另外，筒下面側被開放。如此，由於濾網25係筒狀，因此能夠自立，並在該能夠自立之筒上設置有具有氣體通路用之開口之上表面壁25c。上表面壁25c與圖4所示之整流板11d同樣具有整流功能。因此，在圖10及圖11所示之氣量表1中，沒有將圖4所示之整流板11d螺絲緊固到表身11之勞力及時間，能夠實現組裝工時之削減。 Two filter screens 25 are provided instead of the rectifying plate 11d shown in FIG. The first filter 25a is disposed above the first recess 12c, and the second filter 25b is disposed above the second recess 12d. Each filter 25 is configured such that an upper surface wall 25c having an opening for a gas passage is provided with respect to a rectangular tubular member extending in the vertical direction. In addition, the lower side of the cylinder is opened. In this way, since the screen 25 is cylindrical, it can stand on its own, and the upper wall 25c having an opening for the gas passage is provided on the standable tube. The upper surface wall 25c has a rectifying function like the rectifying plate 11d shown in FIG. 4. Therefore, in the air volume meter 1 shown in FIGS. 10 and 11, there is no labor and time for screwing the rectifier plate 11 d shown in FIG. 4 to the watch body 11, and it is possible to reduce assembly man-hours.

在此，如果將氣量表1之內部分分開為氣體流路側及 大氣室側，圖2至圖4所示之氣量表1之超音波式流速感應器21a、21b設置於大氣室側。相對與此，圖10及圖11所示之氣量表1之超音波式流速感應器21a、21b設置於氣體流路側。更且，圖10及圖11所示之氣量表1基於來自設置於氣體流路側之超音波式流速感應器21a、21b之訊號，藉由同樣設置於氣體流路側之副控制基板26求出氣體流量，將求出之氣體流量發送到大氣室側之控制基板40。因此，需要在維持氣體流路側與大氣室側之氣密性之同時，對用於從副控制基板26向控制基板40進行資訊發送等之配線進行布線。中繼連接器70係用於在維持如此之氣體流路側與大氣室側之氣密性之同時對配線進行布線之構件。 Here, if the inner part of the gas meter 1 is divided into the gas flow path side and On the atmospheric chamber side, the ultrasonic flow velocity sensors 21a and 21b of the gas meter 1 shown in FIGS. 2 to 4 are provided on the atmospheric chamber side. On the other hand, the ultrasonic flow velocity sensors 21 a and 21 b of the gas volume meter 1 shown in FIGS. 10 and 11 are provided on the gas flow path side. Furthermore, the gas volume meter 1 shown in FIGS. 10 and 11 obtains gas based on the signals from the ultrasonic flow velocity sensors 21a and 21b provided on the gas flow path side, and the gas is obtained from the sub-control board 26 also provided on the gas flow path side The flow rate is sent to the control substrate 40 on the side of the atmospheric chamber. Therefore, it is necessary to wire the wiring for transmitting information from the sub-control board 26 to the control board 40 while maintaining the airtightness between the gas flow path side and the atmospheric chamber side. The relay connector 70 is a member for wiring the wiring while maintaining such airtightness between the gas flow path side and the atmospheric chamber side.

圖12係圖10及圖11所示之中繼連接器70之放大側視圖。如圖12所示，中繼連接器70之構造為：包括連接於副控制基板26之第1連接器71、及連接於控制基板40之第2連接器72並將它們之間配線連接。再者，在配線之中間部具有夾著橡膠制之O型環等密封構件13而螺絲緊固在表身11上之密封隔斷壁73。配線與貫穿密封隔斷壁73之密封端子74連接。在此，密封端子74藉由玻璃密封技術以氣密性極高之狀態貫穿密封隔斷壁73。藉由如此之中繼連接器70，能夠用氣體流路側之副控制基板26及大氣室側之控制基板40在確保兩者之氣25密性之同時進行資訊傳遞。 FIG. 12 is an enlarged side view of the relay connector 70 shown in FIGS. 10 and 11. As shown in FIG. 12, the relay connector 70 is configured to include a first connector 71 connected to the sub-control board 26 and a second connector 72 connected to the control board 40 and to wire-connect them. In addition, a sealing partition wall 73 is provided in the middle of the wiring with a sealing member 13 such as an O-ring made of rubber and screw-fastened to the watch body 11. The wiring is connected to the sealed terminal 74 that penetrates the sealed partition wall 73. Here, the sealed terminal 74 penetrates the sealed partition wall 73 in a state of extremely high airtightness by glass sealing technology. With such a relay connector 70, the sub-control board 26 on the gas flow path side and the control board 40 on the atmosphere chamber side can transmit information while ensuring the tightness of the gas 25 between the two.

由於係如上前述之構成，實施形態2之氣量表1在副控制基板26上搭載有圖5所示之流量計量部110之功能部，在控制基板40上搭載有單獨功能部120、外部機器連動功能部130、集中監視功能部140、及自動設定功能部150。關於各個功能部110、120、130、140、150之細節，與實施形態1相同。 Due to the aforementioned structure, the gas meter 1 of the second embodiment is equipped with the functional part of the flow rate measuring unit 110 shown in FIG. The function unit 130, the centralized monitoring function unit 140, and the automatic setting function unit 150. The details of the functional units 110, 120, 130, 140, and 150 are the same as in the first embodiment.

接下來，說明實施形態2之氣量表1之組裝方法及發貨方法。首先，操作者準備將複數個分流板收容且安裝有整流平板(相當於實施形態1所示之網狀板22b)之多層單元22，將超音波式流速感應器21a、21b、副控制基板26及保護殼24安裝在多層單元22之上部。接下來，將2個O型環(未圖示)安裝在多層單元22之外部。由此，製造計量流路單元20。 Next, the assembly method and delivery method of the gas meter 1 of Embodiment 2 will be described. First, the operator prepares a multi-layer unit 22 in which a plurality of manifold plates are accommodated and a rectifying plate (equivalent to the mesh plate 22b shown in the first embodiment) is installed, and the ultrasonic flow velocity sensors 21a, 21b and the sub-control board 26 And the protective case 24 is installed above the multilayer unit 22. Next, two O-rings (not shown) are installed outside the multilayer unit 22. Thus, the metering channel unit 20 is manufactured.

之後，操作者將中繼連接器70安裝到表身11，並且連接相對於副控制基板26之第1連接器71。接下來，操作者在將2個濾網25***到表身11內後，將計量流路單元20***到表身11內。接下來，操作者將安裝有隔板23之下蓋12螺絲緊固到表身11。此時，使多層單元22位於隔板23之板部23a上。 After that, the operator attaches the relay connector 70 to the watch body 11 and connects the first connector 71 to the sub-control board 26. Next, after inserting the two filters 25 into the watch body 11, the operator inserts the metering channel unit 20 into the watch body 11. Next, the operator fastens the lower cover 12 with the partition plate 23 screwed to the watch body 11. At this time, the multilayer unit 22 is positioned on the plate portion 23a of the separator 23.

之後，操作者將壓力感應器80及斷流閥60以能夠 確保高氣密性之方式安裝在表身11之前面開口部(與氣體流路11c相連之開口部)。接下來，安裝用於防止斷流閥60之複數個端子彼此接觸之斷流閥蓋(未圖示)。 After that, the operator sets the pressure sensor 80 and the shut-off valve 60 to be able to It is attached to the front opening of the watch body 11 (the opening connected to the gas flow path 11c) in a manner to ensure high airtightness. Next, a shut-off valve cover (not shown) for preventing a plurality of terminals of the shut-off valve 60 from contacting each other is installed.

之後，操作者將搭載有顯示部41及微型電腦100等之控制基板40安裝在基板保持板42之前面側，使控制基板40與各種構件之連接器(包含第2連接器72)嵌合。 After that, the operator mounts the control board 40 mounted with the display unit 41 and the microcomputer 100 on the front side of the board holding plate 42 and fits the control board 40 to the connectors (including the second connector 72) of various members.

接下來，將防蟲濾網(未圖示)、前玻璃31、密封墊、及復原按鈕32安裝到前蓋30。之後，檢查是否將前玻璃31高氣密性地安裝於前蓋30，經過該檢查後，將前蓋30安裝到表身11。 Next, the insect prevention filter (not shown), the front glass 31, the gasket, and the recovery button 32 are attached to the front cover 30. Thereafter, it is checked whether the front glass 31 is attached to the front cover 30 with high airtightness, and after this inspection, the front cover 30 is attached to the watch body 11.

接下來，操作者進行儀表設定及發貨前檢查，安裝或貼上金屬蓋(未圖示)、標準合格證、特定機構之認證標簽。之後，操作者在使用端子臺進行了發貨前設定後，進行最終檢查並安裝前表面下部蓋33。最後，操作者將使用說明書等與氣量表1一起進行包裝。然後，操作者將包裝物發貨。 Next, the operator performs instrument settings and pre-shipment inspections, installs or affixes a metal cover (not shown), standard certificate of conformity, and certification label of a specific institution. After that, the operator performs the final inspection and installs the front surface lower cover 33 after performing the pre-shipment settings using the terminal block. Finally, the operator packs the instruction manual and the like with the gas meter 1. Then, the operator ships the package.

如上前述，根據實施形態之氣量表1，與第1實施形態同樣，能夠提供可實現小型化及輕量化且計量範圍擴大之氣量表1。 As described above, according to the gas meter 1 of the embodiment, similarly to the first embodiment, it is possible to provide the gas meter 1 that can be reduced in size and weight and has an increased measurement range.

以上，基於實施形態說明了本發明，但本發明不局限於前述實施形態，在不脫離本發明之宗旨之範圍，可以進行變更，亦可以在可能之範圍適當地組合其他之技術。 The present invention has been described above based on the embodiments. However, the present invention is not limited to the foregoing embodiments, and can be modified without departing from the gist of the present invention, and other technologies can be combined as appropriate to the extent possible.

例如前述實施形態中，顯示部41中之1個亦即LED設置在前玻璃31之背面側，但不限於此，亦可以設置在其他之位置，例如亦可以設置在鄰接著復原按鈕32而設置之發光透鏡之背面側。 For example, in the foregoing embodiment, one of the display parts 41, that is, the LED is provided on the back side of the front glass 31, but it is not limited to this, and may be provided at other positions, for example, may be provided adjacent to the recovery button 32 The back side of the light-emitting lens.

Claims (2)

一種氣量表，係對設置於機箱內部之氣體流路中流動之燃料氣體之流量進行計量並累計顯示，並具備：發送單元，向前述氣體流路內間歇地發送超音波訊號；接收單元，接收藉由前述發送單元發送之前述超音波訊號；流量計量單元，基於從前述發送單元發送而藉由前述接收單元接收之前述超音波訊號之傳播時間，對前述氣體流路內流動之氣體流量進行計量；以及多層單元，為筒狀體，設置在前述氣體流路內；前述發送單元及前述接收單元設置在前述多層單元之同一側；前述接收單元接收藉由前述發送單元發送並在前述多層單元內反射之前述超音波訊號。A gas meter, which measures and accumulates the flow rate of fuel gas flowing in a gas flow path provided inside a cabinet, and includes: a sending unit that intermittently sends ultrasonic signals into the gas flow path; a receiving unit that receives The ultrasonic signal sent by the sending unit; the flow measuring unit, based on the propagation time of the ultrasonic signal sent from the sending unit and received by the receiving unit, measures the gas flow in the gas flow path ; And a multi-layer unit, which is a cylindrical body, provided in the gas flow path; the sending unit and the receiving unit are provided on the same side of the multi-layer unit; the receiving unit receives the sending unit and sent in the multi-layer unit The reflected ultrasound signal. 如請求項1所記載之氣量表，其中前述多層單元具備：複數片分流板，沿着該多層單元內之前述燃料氣體之流動方向延伸，並將前述筒狀體之內部分割為多層；前述發送單元向前述多層單元內間歇地發送前述超音波訊號。The gas meter according to claim 1, wherein the multi-layer unit includes: a plurality of splitter plates extending along the flow direction of the fuel gas in the multi-layer unit and dividing the inside of the cylindrical body into multiple layers; the sending The unit intermittently transmits the ultrasonic signal to the multi-layer unit.