CN205642485U - Gasometer - Google Patents

Abstract

The utility model provides a can realize miniaturized and lightweight, and measure the gasometer of range extension, gasometer (1) measures the flow that sets up the fuel gas moved in the gas flow path midstream of quick -witted incasement portion and accumulative total shows, include: ultrasonic wave formula velocity of flow sensor (21a, 21b), it sends ultrasonic signal in to the gas flow path intermittent type and receives the ultrasonic signal who sends, and flow measurement portion, it is based on sending from ultrasonic wave formula velocity of flow sensor (21a, 21b), and by the ultrasonic signal's that is received propagation time, measuring the gas flow that moves at gas flow path internal flow.

Description

Gas meter

Technical field

This utility model relates to gas meter.

Background technology

In the past, it is proposed that between the person of the needs side such as supplying party and family of being arranged on fuel gas, The gas meter that the flow of the fuel gas that the person of needs side is disappeared is measured.Such tolerance In table, there are following membrane type gas meter, this membrane type gas meter by inside and outside film alternatively Make fuel gas carry out filling and discharge and produce reciprocating motion to promote enumerator (referring for example to Patent documentation 1).

Prior art literature

Patent documentation

Patent documentation 1: Japanese Laid-Open flat 11-248506 publication

Utility model content

The problem that utility model is to be solved

But, in membrane type gas meter, the drive division such as film, gear is necessary composition, owing to driving The reason in dynamic portion, maximizes and weight aspect is all disadvantageous.And, in membrane type gas meter, Owing to promoting the relation of drive division, producing the unnecessary pressure loss, measures range becomes narrow.

This utility model is made to solve this problem, its objective is to provide a kind of gas Scale, it is possible to realize miniaturization and lightweight and measures range expands.

For solving the means of problem

The combustion gas stream (11c) that gas meter of the present utility model is internal to being arranged at cabinet (10) The flow of the fuel gas of middle flowing carries out measuring and add up display, it is characterised in that including: Transmitting element (21a, 21b), it is sent intermittently by ultrasonic in above-mentioned combustion gas stream (11c) Ripple signal；Receiving unit (21a, 21b), it receives by above-mentioned transmitting element (21a, 21b) The ultrasonic signal sent；And flow measurement cell (110), it is based on from above-mentioned transmission list The ultrasonic signal that unit (21a, 21b) sends and received by above-mentioned reception unit (21a, 21b) Propagation time, the gas flow of flowing in above-mentioned combustion gas stream (11c) is measured.

According to this gas meter, it is not necessary to the drive division such as film, gear as membrane type gas meter, anti- Stop the maximization because drive division former thus results in, re-quantization.And, it is possible to do not produce because of Promote drive division and the pressure loss that causes, it is achieved the expansion of measures range.Therefore, it is possible to carry For being capable of miniaturization and lightweight and the gas meter of measures range expansion.

It addition, gas meter of the present utility model is preferred: also include multilevel-cell (22), above-mentioned Multilevel-cell (22) is provided in the cylindrical body in above-mentioned combustion gas stream (11c), above-mentioned multilamellar Unit (22) has multiple flow distribution plates (22a), and these multiple flow distribution plates (22a) are along this multilamellar The flow direction of the fuel gas in unit (22) extends, and is divided into multilamellar by cylinder, on State transmitting element (21a, 21b) in above-mentioned multilevel-cell (22), be sent intermittently by ultrasound wave letter Number.

According to this gas meter, owing to including having multiple flow distribution plates by being divided into multilamellar in cylinder Multilevel-cell, thus in multilevel-cell, the fuel gas of flowing is rectified.Further, since send Unit is sent intermittently by ultrasonic signal in multilevel-cell, thus with the fuel gas being rectified Flow measurement is carried out for object.Therefore, it is possible to realize the raising of flow measurement precision.

It addition, gas meter of the present utility model is preferred: above-mentioned reception unit (21a, 21b) sets Put across above-mentioned multilevel-cell (22) opposed with above-mentioned transmitting element (21a, 21b) one Side, directly receives the ultrasonic signal sent by above-mentioned transmitting element (21a, 21b).

According to this gas meter, it is arranged on across multilevel-cell and transmitting element owing to receiving unit Opposed side, and directly receive the ultrasonic signal sent by transmitting element, therefore, ultrasonic Ripple signal will not be reflected by any object and be received by receiving unit.Therefore, it is possible to do not produce because of The loss of signal ground received ultrasonic signal reflected and cause.

It addition, gas meter of the present utility model is preferred: above-mentioned transmitting element (21a, 21b) and Above-mentioned reception unit (21a, 21b) is arranged on the same side of above-mentioned multilevel-cell (22), above-mentioned Receive unit (21a, 21b) to receive by above-mentioned transmitting element (21a, 21b) transmission and upper State the ultrasonic signal of multilevel-cell (22) internal reflection.

The same side of multilevel-cell it is arranged on according to this gas meter, transmitting element and reception unit, Receive unit receive by transmitting element send and above-mentioned multilevel-cell internal reflection ultrasound wave believe Number.So, it is possible, relative to multilevel-cell, transmitting element and reception unit are arranged on the same side, And centralized configuration component parts, thus realize spatial lifting.

Utility model effect

According to this utility model, using the teaching of the invention it is possible to provide be capable of miniaturization and lightweight and metering model Enclose the gas meter of expansion.

Accompanying drawing explanation

Fig. 1 is the gas meter system illustrating the gas meter comprising the 1st embodiment of the present utility model The pie graph of system outline.

Fig. 2 is the axonometric chart of the details illustrating the gas meter shown in Fig. 1.

Fig. 3 is the exploded perspective view of the gas meter shown in Fig. 2.

Fig. 4 is the sectional view of the Inner Constitution illustrating the gas meter shown in Fig. 2.

Fig. 5 is the functional block being shown in the gas meter of the 1st embodiment the function part worked Figure.

Fig. 6 is the detailed diagram of the independent function part shown in Fig. 5.

Fig. 7 is the detailed diagram in the external mechanical linkage function portion shown in Fig. 5.

Fig. 8 is the detailed diagram of the centralized watch function part shown in Fig. 5.

Fig. 9 is the detailed diagram in the pre-setting function automatically portion shown in Fig. 5.

Figure 10 is the view sub-anatomy of the gas meter illustrating the 2nd embodiment.

Figure 11 is the profile of the Inner Constitution illustrating the gas meter shown in Figure 10.

Figure 12 is the enlarged side view of the Relay linker shown in Figure 10 and Figure 11.

Description of reference numerals

1: gas meter

1a: transceiver

2: repeater

2a: transceiver

3: civil gas management center

10: main unit (cabinet)

11: table body

11a: combustion gas inflow entrance

11b: gas flow outlet

11c: combustion gas stream

11d: cowling panel

12: lower cover

12a: recess

12b: wall portion

12c: the 1 recess

12d: second recesses

13: seal member

20: metering channel unit

21: base plate

21a, 21b: ultrasonic type flow sensor (transmitting element, reception unit)

21a: upstream side sensor

21b: downstream sensor

22: multilevel-cell

22a: flow distribution plate

22b: reticular lamina

23: dividing plate

23a: plate portion

23b: thickening part

24: containment vessel

25: filter screen

25c: upper surface wall

26: sub-control substrate

30: protecgulum

31: front glass

32: carriage return button

33: front surface lower cover

40: control substrate

41: display part

42: substrate holding plate

50: battery

60: cut-off valve

70: Relay linker

73: seal partition walls

74: hermetic terminal

80: pressure transducer

100: microcomputer

110: flow measurement portion (flow measurement cell)

120: individually function part

121: logic closing function portion

122: restore safety verification portion

123: sense shake device work close portion

124: flow-type minor leakage detection unit

125: pressure monitoring function part

126: register of igniting

127: certainly damage preventing portion

128: cell voltage reduces detection unit

129: inspection valid period detection unit

120A: close abnormality warnings portion

120B: regurgitation alert portion

120C: test close portion

120D: self-diagnosing function portion

130: external mechanical linkage function portion

131: siren linkage close portion

132: linkage close portion

133: linkage communicating department

134: pulse output unit

140: centralized watch function part

141: unit accumulating function portion

142: instrument display function portion

143: prepayment surplus management department

144: automatic look-up table portion

145: surplus management department

146: close detailed data storage part

147: communication security maps storage part

148: closed center function part

149: emergency closing function portion

140A: centre valve open function portion

140B: center loaded portion

140C: minor leakage timing unit

140D: test call portion

140E: use the time to close advance notice portion

140F: do not confirming communicating department

140G: large-scale combustors arranges communicating department

140H: usage amount increases and reduces communicating department

150: pre-setting function automatically portion

151: initial stage study portion

152: increase and learn portion again

153: reduce and learn portion again

GS: gas meter system

Detailed description of the invention

Hereinafter, according to optimal embodiment, this utility model is illustrated.Additionally, this reality It is not limited to embodiment shown below, without departing from objective of the present utility model with novel Scope, it is possible to suitably change.It addition, in embodiment shown below, there is omission The diagram of a part of composition, the place of explanation, about the details of the technology being omitted, with In the range of content described below does not conflict, it goes without saying that be suitable for suitable public affairs Know general knowledge or widely-known technique.

Fig. 1 is the gas meter system illustrating the gas meter comprising the 1st embodiment of the present utility model The pie graph of system outline.The composition of gas meter system GS shown in Fig. 1 includes: multiple gas meters 1, multiple repeaters 2 and civil gas management center 3, at multiple gas meters 1 and civil gas management Carry out the transmission of information, reception between center 3, and carry out the control of gas meter 1.

Such as, gas meter 1 and repeater 2 are respectively provided with transceiver 1a, 2a, gas meter Information (such as about value of tabling look-up, the information of the closedown state of affairs of the cut-off valve described later 60) quilt of 1 It is sent to repeater 2.It addition, repeater 2 is connected to civil gas management center the most in a wired fashion 3.Therefore, repeater 2 information of the gas meter 1 received is sent to civil gas management center 3.It addition, from the information (such as control signal) at civil gas management center 3, by via relaying Device 2 is sent to each gas meter 1.Thus, civil gas management center 3 can remotely control gas meter 1.

Additionally, in above-mentioned, repeater 2 is wired with civil gas management center 3, but not office It is limited to this, it is also possible to wireless connections.It addition, do not limit to about gas meter 1 and repeater 2 In wireless connections, it is also possible to wired connection.In addition, if it would be possible, gas meter 1 Can also be connected not via repeater 2 with civil gas management center 3.

Fig. 2 is the axonometric chart of the details illustrating the gas meter 1 shown in Fig. 1, and Fig. 3 is Fig. 2 institute The exploded perspective view of the gas meter 1 shown.It addition, Fig. 4 is to illustrate the gas meter 1 shown in Fig. 2 The sectional view of Inner Constitution.Additionally, it is following to towards accepting the fuel gas supply from fuel cartridge The gas meter 1 of LP combustion gas illustrate, but for towards the gas meter of gas be also with Sample.

Gas meter 1 shown in Fig. 2～Fig. 4 utilizes ultrasound wave, to the combustion gas being arranged at cabinet inside In stream (with reference to reference 11c described later), the flow of the fuel gas of flowing carries out measuring also Accumulative display.This gas meter 1 is with main unit (cabinet) 10, metering channel unit 20, front Lid 30, control substrate 40, battery 50 and cut-off valve 60 constitute main body.

Main unit 10 is by table body 11, by the lower cover 12 of the open lower side closing of table body 11 The cabinet constituted.Table body 11, owing to being provided with lower cover 12, is gone out from combustion gas inflow entrance 11a by delimitation The a string combustion gas stream 11c being bent into substantially U-shaped to gas flow outlet 11b.Lower cover 12 is the metal parts of substantially writing board shape, is fixed by screw and is fixed on table body 11 from downside. These table bodies 11 and lower cover 12 are formed by metal materials such as aluminum or aluminum alloy, the most also may be used With by resin formation.Rubber blanket etc. is being had to seal additionally, be situated between table body 11 and lower cover 12 Parts 13 guarantee air-tightness.

And, as shown in Figure 4, table body 11 is provided with cowling panel 11d.Cowling panel 11d Being metallic plate or resin plate, it is arranged in the combustion gas stream 11c being bent into substantially U-shaped , the upstream side slightly of multilevel-cell 22 described later.By this cowling panel 11d, it is possible to prevent Sinuous flow, carries out rectification to the combustion gas dynamic to multilevel-cell 22 effluent.

Referring again to Fig. 2.Metering channel unit 20 include: base plate 21, its by placing under On lid 12, and it is fixed by screw etc. and to be fixed on table body 11；With multilevel-cell 22, its quilt It is housed in the recess being formed at base plate 21.

Base plate 21 is separately installed with ultrasonic type flow velocity in face side and the rear side of gas meter 1 Sensor (transmitting element receives unit) 21a, 21b.These ultrasonic type flow sensors 21a, 21b are slightly angled installed relative to the flow direction of combustion gas, and a side is that upstream side passes Sensor 21a, the opposing party is downstream sensor 21b.Upstream side sensor 21a passes with downstream Sensor 21b is opposed to configuration.It addition, described ultrasonic type flow sensor 21a, 21b pass through Not shown distribution is connected to control substrate 40, carries out ultrasound wave under the control controlling substrate 40 The transmission etc. of signal.

Multilevel-cell 22 is the cylinder of the cross section substantially square shape being formed with metering stream therein Shape body, this multilevel-cell 22 is provided integrally with metering stream at upper and lower in the inside of cylindrical body Multiple flow distribution plate 22a to segmentation.By these flow distribution plates 22a, to inside multilevel-cell 22 The combustion gas of flowing carries out rectification.It addition, on multilevel-cell 22, from ultrasonic type flow velocity The ultrasonic signal of sensor 21a, 21b by position (the i.e. face side of gas meter 1 and the back of the body Side, face) it is formed with peristome, this peristome is provided with netted 2 reticular lamina 22b.Netted Plate 22b is to prevent from arranging in being closely close to generation whirlpool of peristome.Additionally, multilamellar list Unit 22 in, such as, flow distribution plate 22a and reticular lamina 22b is formed by metal, other part by Resins etc. are formed.

Protecgulum 30 is the lid outer front surface of table body 11 covered.At protecgulum 30 and table body 11 Outer surface between contain control substrate 40, battery 50, cut-off valve 60 etc..Protecgulum 30 with Table body 11 can be formed by metal materials such as aluminum or aluminum alloy equally, but also be able to by with table body 11 The materials such as different resins are formed.

Being provided with front glass 31 on such protecgulum 30, this front glass 31 is used for making it possible to To be arranged at control substrate 40 LCD (Liquid Crystal Display: liquid crystal display), The display content of the display parts 41 such as LED (Light Emitting Diode: light emitting diode) is entered Row visual confirmation.It addition, be provided with carriage return button 32 on protecgulum 30, this carriage return button 32 It it is the operation for the cut-off valve 60 making combustion gas stream 11c be blocked state being set to open state Portion.And, protecgulum 30 has front surface lower cover 33 in bottom, by taking under this front surface Portion's lid 33 and expose terminal board (not shown).This terminal board can connect shown in Fig. 1 Transceiver 1a etc..

Control substrate 40 and there is the overall function controlling gas meter 1, via substrate holding plate 42 It is arranged on the rear side of protecgulum 30, is arranged between table body 11 and protecgulum 30.

It addition, be equipped with on control substrate 40: based on from ultrasonic type flow sensor Microcomputer (aftermentioned Fig. 5 that gas flow rate is measured by the sensor signal of 21a, 21b 100), not shown transmission loop, receive loop and I/F loop etc..Miniature calculating Machine 100 is connected with transmission loop and reception loop respectively, sends loop and receives loop via I/ F loop is connected respectively to ultrasonic type flow sensor 21a, 21b.

Transmission loop, under the control of microcomputer 100, is sent intermittently by making ultrasonic signal The signal produced, drives 2 ultrasonic types flow sensor 21a, 21b.Therefore, 2 ultrasonic Waves flow sensor 21a, 21b are at the flow direction of combustion gas, from upstream side and this pair of downstream Side is sent intermittently by and received ultrasonic signal.

Receive loop input from have received ultrasonic signal ultrasonic type flow sensor 21a, The sensor signal of 21b.It is received back to path built-in have sensor signal is amplified to predetermined intensity Amplifier, the amplification of this amplifier can be adjusted by microcomputer 100.By amplifying The sensor signal that device amplifies is imported into microcomputer 100.

Microcomputer 100 read in after sensor signal in each sampling time (such as 2 seconds), Based on the biography being sent the ultrasonic signal received by 2 ultrasonic types flow sensor 21a, 21b Between sowing time, gas flow rate is measured.And, microcomputer 100 is at the combustion gas stream of metering It is multiplied by the sectional area of combustion gas stream in speed to measure instantaneous delivery, or calculates measured instantaneous stream The aggregate-value i.e. integrated flow value of amount.

Battery 50 action of gas meter 1 is supplied needed for electric power.Such battery 50 is installed Near the central authorities of table body 11.Cut-off valve 60 closes the combustion gas inflow entrance 11a of combustion gas stream 11c Side and become blocked state, be for stop to being arranged at family etc. burner supply combustion The valve of gas.This cut-off valve 60 is connected with controlling substrate 40, and microcomputer 100 is based on coming From the signal representing gas leakage notice of gas leakage siren or in the pass within gas meter 1 Close the detection of the state of affairs, carry out inaccessible cut-off valve 60.

Fig. 5 is the function being shown in the gas meter 1 of the 1st embodiment the function part worked Block diagram.Additionally, in the following description, about the function towards LP combustion gas, it is also possible to application The function towards gas can be applied to.

Microcomputer 100 as shown in Figure 5 is by the program stored by execution, thus plays Flow measurement portion (flow measurement cell) 110, independent function part 120, external mechanical linkage merit Energy portion 130, centralized watch function part 140 and the effect in pre-setting function automatically portion 150.As Upper described, flow measurement portion 110 has by the transmission of ultrasonic signal, receives and measure combustion The function of throughput.

Individually function part 120 mainly carries out what not linkage with external mechanical was just able to carry out The function part controlled.External mechanical linkage function portion 130 mainly carry out by gas meter 1 with The linkage of external mechanical and the function part of control that is able to carry out, centralized watch function part 140 is main Be by along with the transmission of information at the civil gas management center 3 shown in Fig. 1, reception The function part of control etc..Pre-setting function automatically portion 150 learns the gas consumption pattern of setting place And automatically set various threshold value, close value.

Fig. 6 is the detailed diagram of the independent function part 120 shown in Fig. 5.Individually function part 120 Including logic closing function portion 121, restore safety verification portion 122, sense shake device work close portion 123, Flow-type minor leakage detection unit 124, pressure monitoring function part 125 and register 126 of igniting. And, independent function part 120 includes certainly damaging preventing portion 127, cell voltage reduces detection unit 128, Inspection valid period detection unit 129, close abnormality warnings portion 120A, regurgitation alert portion 120B, Test close portion 120C and self-diagnosing function portion 120D.At these function parts 121～ During 120D action, the display part 41 such as LED, LCD becomes the display state representing suitable action.

Logic closing function portion 121 is to can determine that the continuous data for gas flow is in logic The upper function part for closing cut-off valve 60 in the case of abnormal, have total flow closing function, Increase flow closing function and use time closing function.

Adding up to flow closing function is following function: the consumption patterns of the combustion gas of study setting place, Set in the range of the higher limit predetermined and lower limit and can determine that the combustion into setting place The threshold value that the exception of gas uses in a large number, and close in the case of the flow more than this threshold value being detected Close cut-off valve 60.Utilize this function, such as, open in combustion gas main switch, rubber tube abjection etc. by mistake Time can close cut-off valve 60.Additionally, threshold value can be set as off grade.

Increasing flow closing function is following function: the combustion gas of the family etc. of study setting place Consumption patterns, sets in the range of the higher limit predetermined and lower limit and can determine that as setting The threshold value that the exception of the combustion gas putting place increases, and increase at the flow more than this threshold value being detected In the case of close cut-off valve 60.Utilize this function, it is possible to exceeded in setting place having had Gas appliance among the Gas appliance needing maximum flow flow as flow increase In the case of, it is possible to it is judged to that combustion gas main switch is opened by mistake, rubber tube is deviate from, and closes cut-off valve 60.Additionally, threshold value can be set as off grade.

Additionally, by the carriage return button 32 operating gas meter 1, by setting apparatus is connected to gas Scale 1 is also set, or, by carrying out signal transmission from civil gas management center 3, from And can raise and add up to flow closing function and increase the lower limit of flow closing function.

Use time closing function is following function: the use time of combustion gas become close value with In the case of as on, long-time combustion gas uses singularly, it is judged that for Gas appliance forget close The gas leakage closing, causing because of the not completely closed of the switch of Gas appliance, and close cutout Valve 60.In this use time closing function, it is set with multiple traffic differentiation, to each flow Distinguish and judge that the use time of combustion gas is the longest.Multiple traffic differentiation are such as by flow district Divide " 1 "～" 13 " to constitute, represent that the side that the numerical value distinguished is little is low discharge.And, make With time closing function, there are 12 detailed functions.

1st detailed functions is off grade pre-setting function automatically.Off grade pre-setting function automatically be as Lower function: the consumption patterns of combustion gas of study setting place, the higher limit predetermined and under In the range of limit value, off grade ground sets and can determine that the abnormal long-time use into combustion gas Close value.

2nd detailed functions is cooking corresponding function.Cooking corresponding function is following function: in order to Prevent from making cut-off valve 60 be closed, by flow when low baking temperature is arranged because using time closing function Distinguish " 2 " further 3 segmentations, in divided each is distinctly distinguished, set close value.Tool For body, traffic differentiation " 2-1 " is corresponding to the flow of low baking temperature.It addition, traffic differentiation " 2- 2 " corresponding to the flow during use of bogey, radiator, traffic differentiation " 2-3 " is corresponding to height The flow during use of heat pulverizing jet.

3rd detailed functions is the long-time counter-measure functions of specific water boiling device.Specific water boiling device is long-time Counter-measure functions is following function: corresponding to not having imperfect combustion to prevent specifically heating up water of function Device (4 No. 5 opening water boiling devices), is fixed as the close value of traffic differentiation " 5 " " 6 " The scheduled time (such as 20 minutes).

4th detailed functions is expanded function.Expanded function is following function: at gas meter 1 On the premise of being connected to gas leakage alarming device on terminal board, indefinite extension until close time. Setting apparatus or the signal from civil gas management center 3 is utilized to send and make this expanded function validation. It addition, in the case of expanded function become valid, when combustion gas siren is removed, in advance (such as 10 minutes) expanded function afterwards of fixing time is invalidated.The attaching plug of combustion gas siren Also it is same in the case of being unplugged.

5th detailed functions is that siren is not connected with detection function.Siren is not connected with detection function It is following function: whether the terminal board of detection gas meter 1 connects gas leakage alarming device.Separately Outward, when utilizing this Function detection to the connection of gas leakage alarming device, microcomputer 100 Predetermined traffic differentiation (such as traffic differentiation " 3 "～" 13 ") raises and predetermines Higher limit.Additionally, when gas leakage alarming device becomes not-connected status after connected, micro- The higher limit raised is returned to original value by type computer 100.

6th detailed functions is that siren is not connected with detection stopping function.Siren is not connected with detection Stopping function is following function: do not have Gas appliance etc. the most within doors, at gas leakage alarming device The consumer residence arranged outside object be provided with instrument in the case of, make siren be not connected with inspection Brake stops.

7th detailed functions is warning function under siren attaching plug.Siren attaching plug Lower warning function is following function: the gas leakage alarming device that detection connects via terminal board Attaching plug whether under.It addition, when utilizing this Function detection to gas leakage alarming device Time under attaching plug, microcomputer 100 is by because being not connected with detection function based on siren The connection of gas leakage alarming device and be elevated pieces of higher limit and return to original value.

8th detailed functions is the 1st specific differentiation use time system limit function.1st specific differentiation Use time system limit function is following function: for specific traffic differentiation (such as traffic differentiation " 1-2 ") set and use system in limited time between.In this function, it is possible between use system is prescribed a time limit (i.e. Close value) it is set as such as 30 minutes, 60 minutes, 120 minutes, 180 minutes, 300 points Clock and any one among 720 minutes.Additionally, this function is owing to stepping on described later igniting It is low that the function that note portion 126 is played compares relative importance value, and therefore, igniting, register 126 plays It is invalidated in the case of function.

9th detailed functions is the 2nd specific differentiation use time system limit function.2nd specific differentiation Use time system limit function is following function: for specific traffic differentiation (such as traffic differentiation " 2 ") set and use system in limited time between.In this function, it is possible to (i.e. close between use system is prescribed a time limit Close value) shorten to such as less than 160 minutes, such as can be set as 30 minutes, 60 minutes, Any one in 120 minutes and 160 minutes.Thereby, it is possible to by the use time of low discharge Shorten and prevent sky burning etc..

10th detailed functions is the use time to close advance notice function.The use time closes advance notice function Following function: combustion gas use the time arrive close value the scheduled time before (such as 8 points Before clock), predict to civil gas management center 3.It addition, in the feelings that close value is less than 30 minutes Under condition, the such as scheduled time is shortened to 5 minutes.Additionally, this function is due to civil gas management Center 3 circular advance notice, accordingly it is also possible to 1 as centralized watch function part 140 is sent out Wave function.

11st detailed functions is the 3rd specific differentiation use time system limit function.3rd specific differentiation Use time system limit function is following function: for specific traffic differentiation (such as traffic differentiation " 3 "～" 13 ") set and use system in limited time between.In this function, it is possible to by use system in limited time Between (i.e. close value) be set as such as 15 minutes, 30 minutes, 60 minutes, 90 minutes, 120 Minute and any one in 160 minutes.Additionally, in the time set less than lower limit In the case of, set with lower limit.

12nd detailed functions is that the upper limit fixes function.The upper limit is fixed function and is following function: at gas On the terminal board of scale 1 connect have gas leakage alarming device on the premise of, by until close time Between be fixed as higher limit.Setting apparatus or the signal from civil gas management center 3 is utilized to send and make This function validation.It addition, in the case of this function become valid, when combustion gas siren quilt When taking off, fix function in the scheduled time (the such as 10 minutes) upper limit afterwards and be invalidated.In combustion Also it is same in the case of under the attaching plug of gas siren.

Restoring safety verification portion 122 is the function part having following effect: because closing the generation of the state of affairs And after closing cut-off valve 60, (the operation of carriage return button 32 in the case of opening cut-off valve 60 Time, when opening control from the valve at civil gas management center 3 etc.), confirm that cut-off valve 60 is opened Whether safety.This recovery safety verification portion 122 scheduled time after restoring instruction is (the biggest During about 17 seconds), monitor pressure and flow, it is determined that valve opens whether safety.Additionally, The time that uses having carried out specific traffic differentiation (such as traffic differentiation " 1-2 ") closes In the case of, it is not by the safety verification of the scheduled time, and it is pre-to be by the 2nd for more time Fix time the safety verification of (the most about 70 seconds).It addition, the result of safety verification be because of Gas appliance forget that the reasons such as closedown are judged as under unsafe condition, once open Cut-off valve 60 is closed again.

Sense shake device work close portion 123 is following function part: in built-in sense shake device (not shown) In the case of perceiving the earthquake of more than predetermined earthquake degree (such as earthquake degree 5), cut-off valve 60 is closed Close.This sense shake device work close portion 123 is being applied with vibrations produced by the traveling of oversize vehicle Time, people close to gas meter 1 time, foreign body strike gas meter 1 time etc., be not judged to earthquake, So well-regulated vibrations are not judged to earthquake, and irregular vibrations are judged to earthquake. And, sense shake device work close portion 123 is only on the ground being perceived more than predetermined earthquake degree by sense shake device In the case of there is the use of combustion gas before and after the time point of shake, cut-off valve 60 is closed.Specifically, Within the sense shake device work close portion 123 scheduled time (such as 16 seconds) before detecting period point And when there is the use of combustion gas after detecting period point within the 2nd scheduled time (such as 2 minutes) Cut-off valve 60 is closed.And, sense shake device work close portion 123 is by restoring safety verification portion Also will in the case of the recovery safety verification that 122 are carried out perceives the earthquake of more than predetermined earthquake degree Cut-off valve 60 is closed.

The function of flow-type minor leakage detection unit 124 is: detect from gas meter 1 according to flow Gas flow outlet 11b to the leakage of the pettiness of the supervision scope of Gas appliance.This flow declines Few leak judgement portion 124 is in such as predetermined number of days (e.g. 30 days, it is possible to set 1～30 day) In the case of being consecutively detected the flow of pettiness, carry out warning display and cut-off valve 60 is closed. Warning display lasts up to carry out the operation that resets.Because of other the closedown state of affairs in warning display And in the case of having carried out closing, once become the closedown display state that this closedown state of affairs is caused, Restoring after safety verification, becoming the warning that flow-type minor leakage detection unit 124 determined and show Show state.It addition, flow-type minor leakage detection unit 124 is being carried out by register 126 of igniting Ignite in the case of registration, detect leakage using the flow that not will be equivalent to ignite as object Mode play a role.And, gas meter 1 is at warning display time point and from warning display warp Cross the time point of the 2nd predetermined number of days (such as 60 days), by transceiver 1a to combustion gas Administrative center 3 circulates a notice of this situation.

Pressure monitoring function part 125 is following function part: utilize built-in pressure transducer (not Diagram) monitor gaseous-pressure, the detection pressure regulator from the upstream being arranged on gas meter 1 Interval gas leakage etc. to Gas appliance.This pressure monitoring function part 125 includes pressure type Minor leakage detection unit, adjustment pressure anomaly detection unit, occlusion pressure abnormality determination unit, pressure Reduce close portion, leak test portion, adjust pressure data storage part and occlusion pressure data Storage part.

Pressure type minor leakage detection unit, uses the pressure after just stopping (substantially pressing based on combustion gas Power) and the pressure of the scheduled time (such as 15 minutes) interval metering afterwards, it is determined that the combustion of pettiness The leakage of gas.Specifically, in the result carrying out pressure measurement with predetermined time interval it is, with The value of basic pressure is compared, and pressure more than predetermined value (such as 2kPa) rose in predetermined number of days In the case of (such as 30 days) period does not the most all have, pressure type minor leakage detection unit judges For there being the leakage of pettiness, carry out warning display.But, from previous force value to pressure this time Value rise to more than predetermined value in the case of (i.e. there is the pressure of more than predetermined value in the scheduled time In the case of power rises), pressure type minor leakage detection unit is judged to it is combustion gas behaviour in service institute The impact caused, updates the value of basic pressure.

Adjust pressure anomaly detection unit, based on the adjustment pressure in the case of employing Gas appliance The exception of pressure regulator is judged.This adjustment pressure anomaly detection unit detection gas flow After change, pressure conduct after the scheduled time (5 minutes) adjust pressure, to being made a reservation for Scope (such as 2.3～the 3.3kPa) number of times adjusting pressure outward counts.Even if additionally, Obtain the adjustment pressure outside more than 2 times preset ranges in 1 day, be also counted as 1 time.Adjust pressure Abnormality determination unit reaches predetermined value (such as 15) at the number of counting in predetermined number of days (such as 30 days) In the case of above, it is determined that be abnormal for pressure regulator, carry out warning display.Warning is aobvious Show and last up to carry out the operation that resets.

The occlusion pressure abnormality determination unit pressure used in the case of stopping based on Gas appliance is adjusted The occlusion pressure of whole device, judges the exception of pressure regulator.By predetermined amount of flow with Under Gas appliance employ the scheduled time (such as 5 minutes) more than after, this adjustment pressure is different Often detection unit detection stops the occlusion pressure during use of combustion gas, to having obtained predetermined pressure (example Such as 3.5kPa) more than the read-around ratio of occlusion pressure count.Occlusion pressure unusual determination Portion is in the case of the number of counting reaches more than predetermined value (such as 15), it is determined that adjust for pressure Device is abnormal, carries out warning display.Warning display lasts up to carry out the operation that resets.Additionally, Occlusion pressure abnormality determination unit the initial value of predetermined amount of flow be 500L/h, regulation flow (such as In the case of 210L/h) gas flow below is detected, predetermined amount of flow is updated to regulation The value of flow.And, adjust pressure anomaly detection unit and predetermined amount of flow is being updated to regulation flow Value after, in the case of not detecting the flow of below regulation flow more than 30 days, will be pre- Constant flow returns to initial value.

Pressure reduces close portion in the pressure drop as little as predetermined pressure (scope of such as 0.6 ± 0.4kPa In any one pressure) below in the case of, close cut-off valve 60.This pressure reduces closes Portion is from being reduced to the time point of below predetermined pressure to front phase scheduled time (such as 16 seconds) Between, in the case of there is the use of combustion gas, close cut-off valve 60.And, pressure reduces closes Portion's pressure in restoring the recovery safety verification that safety verification portion 122 is carried out decreases up to make a reservation for In the case of below pressure, it is also switched off cut-off valve 60.

Leak test portion is the function part of the leakage checking pipe arrangement.There is pressure type minor leakage In the case of the warning that detection unit is carried out shows, it is possible to carried out the inspection leaked by leak test portion Look into.The inspection step that this leak test portion is carried out is as follows.It is first shut off the valve of gas container, Senior executive is taken off from valve and releases combustion gas.Next setting apparatus is connected to terminal board concurrent Leak test requirement is sent to instruct.Thus, inspection starts, it is determined whether have leakage.It follows that By operating carriage return button 32 after test described later is closed, thus gas meter 1 returns to generally State.Additionally, leak test portion can carry out the state closed by cut-off valve 60 and open 2 kinds of inspections of state.

Adjust pressure data storage part to after being determined with extremely by adjustment pressure anomaly detection unit Until being reset, the maximum adjusting pressure and the minima of the period of operation store.It addition, Adjust pressure data storage part and do not detect that exception have passed through at adjustment pressure anomaly detection unit By maximum and the erasing of information of minima of storage after predetermined number of days (such as 30 days).

Occlusion pressure data store is to after being determined with by occlusion pressure abnormality determination unit extremely Until being reset, the occlusion pressure of the period of operation stores.It addition, occlusion pressure data are deposited Storage portion is in occlusion pressure and the company utilizing occlusion pressure abnormality determination unit to can not get more than predetermined pressure After continuous counting is cleared, by the erasing of information of the occlusion pressure of storage.

Register of igniting 126 is to be equivalent to the flow ignited of Gas appliance in long-time use The function part that setting place is utilized, inputs after the command instruction of setting apparatus, in predetermined sky In the case of number (such as 14 days) period has obtained the flow being equivalent to ignite, carrying out ignites steps on Note.After register 126 of being ignited by this carries out igniting and registers, flow-type minor leakage detection unit 124 using not will be equivalent to the flow ignited as object detect leakage in the way of play a role.Separately Outward, carrying out igniting after registration, the pressure type minor leakage among pressure monitoring function part 125 is sentenced Determine the function stop in portion.Additionally, the described flow being equivalent to ignite is registration flow ± α (α is such as 10%).

It is to prevent the such merit from the behavior of damage of Continued depression carriage return button 32 from damaging preventing portion 127 , such as, in the gap of carriage return button 32, there is foreign body and cut-off valve 60 will be made to continue in energy portion In the case of opening, close cut-off valve 60 when gas flow being detected.Thus, indirectly to User notifies: the behavior persistently opening cut-off valve 60 can not be carried out, thus prevents from damage behavior.

It is following function part that cell voltage reduces detection unit 128: the battery 50 to gas meter 1 Voltage drops to the situation of below setting value and judges, and carries out warning display.Warning display is held Continuous until carrying out the operation that resets.It addition, cell voltage reduction detection unit 128 is after warning display, Cut-off valve 60 is closed after predetermined number of days (such as 40 days).Sentence additionally, cell voltage reduces Determine portion 128 in the case of the time point through predetermined number of days is currently in use combustion gas, in combustion gas The time point stopped or the time point through the scheduled time (such as 24 hours) is used to close cutout Valve 60.It addition, the warning that gas meter 1 is carried out at cell voltage reduction detection unit 128 shows Middle carried out because of other the closedown state of affairs close in the case of, carry out based on this closedown state of affairs Display.Additionally, in the case of being closed cut-off valve 60 by cell voltage reduction detection unit 128, Cut-off valve 60 can not be opened.And, reduce, at cell voltage, the warning that detection unit 128 is carried out In display, test closedown can not be carried out, and can confirm away from carrying out closing at display part 41 Residue natural law.

Inspection valid period detection unit 129 is following function part: from the manufacture of gas meter 1 Carry out warning when have passed through scheduled period (such as 10 years 06 months) to show, and predetermined sky Close after number (40 days).

Closing abnormality warnings portion 120A is following function part: when cut-off valve 60 is closed When detecting gas flow, it is determined that the bad or incomplete valve closing of the action for cut-off valve 60, carry out Warning display.

Regurgitation alert portion 120B is following function part: at the combustion gas inflow entrance 11a of gas meter 1 It is reversed ground pipe arrangement to be connected with gas flow outlet 11b, when negative flow is detected, detects Countercurrently carry out warning display.Additionally, after this warning shows, combustion gas inflow entrance 11a and combustion gas stream Outlet 11b the most correctly pipe arrangement connects, and warning display does not disappears.Therefore, disappear wanting In the case of showing except this warning, need to carry out the operation that resets.

Test close portion 120C is following function part: by making Magnet making a reservation for close to gas meter 1 Position, thus carry out making the test of cut-off valve 60 closing motion to close.Here, gas meter 1 is straight To being set to setting place, it is in the power consumption repressed dormancy shape of so-called Dispatching mode State.About this Dispatching mode, after the test closedown that test close portion 120C is carried out, pass through Operation carriage return button 32 makes cut-off valve 60 open to release.It addition, gas meter 1 is at delivery mould Formula be released from after normal mode under, carry out for continuous 2 times test close after be again introduced into deliver mould Formula.

Self-diagnosing function portion 120D has instrument abnormal show function part and pulsation warning display Portion.Instrument abnormal show function part is following function part: at flow measurement portion 110 or cut-off valve Show in the case of certain exception of 60 generations.Here, is produced from described flow measurement portion 110 Raw abnormal situation refers to: being mixed into of such as foreign body, the immersion of rainwater, combustion gas are mixed with air Combustion gas state, equipment fault, the reduction etc. of cell voltage drastically.About being mixed into of foreign body, The mixed combustion gas state of the immersion of rainwater and combustion gas and air, it is possible to based on propagation time, amplification The exception of degree judges.Pulsation warning display part is following function part: creating flow When pulsation and likely producing the function of gas meter 1 hinders, show this situation.

Fig. 7 is the detailed diagram in the external mechanical linkage function portion 130 shown in Fig. 5.Such as Fig. 7 Shown in, external mechanical linkage function portion 130 includes: siren linkage close portion 131, linkage are closed Closing part 132, linkage communicating department 133 and pulse output unit 134.Additionally, in these functions When portion 131～134 action, the display part 41 such as LED, LCD becomes and represents the aobvious of suitable action Show state.

Siren linkage close portion 131 is following function part: have combustion gas connecting via terminal board In the case of leakage alarms device, close cutout when gas leakage alarming device detects gas leakage Valve 60.Siren linkage close portion 131 gas leakage alarming device detection in restoring safety verification In the case of going out gas leakage, close cut-off valve 60 immediately.It addition, siren linkage close portion 131 by carrying out signal transmission to gas leakage alarming device, it is possible to from the sound of gas leakage alarming device Sound output unit inform gas meter 1 state (in closing advance notice, closing, restore in safety verification, Combustion gas uses permission etc.).

Linkage close portion 132 is following function part: from the external mechanical connected via terminal board In the case of (such as CO siren) receives alarm signal, close cut-off valve 60.It addition, Linkage close portion 132 detects the situation of alarm signal in restoring safety verification from external mechanical Under, close cut-off valve 60 immediately.

Linkage communicating department 133 is following function part: based on from the outside connected via terminal board The signal of machine (such as with the automatic switchover adjustor of sender), is carried out to civil gas management The circular at center 3.And, linkage communicating department 133 has the residue of fuel cartridge at gas meter 1 In the case of buret reason enumerator, based on the signal from external mechanical, by surplus management meter Number device resets, or sends the replacing information of fuel cartridge to civil gas management center 3.

Pulse output unit 134 is following function part: to the pulse correspondence machine connected via terminal board Device transmitted traffic pulse.Often there is predetermined amount of flow (such as 1L/ pulse, 10L/ pulse or 100L / pulse) with regard to transmitted traffic pulse.

Fig. 8 is the detailed diagram of the centralized watch function part 140 shown in Fig. 5.As shown in Figure 8, Centralized watch function part 140 includes: unit accumulating function portion 141, instrument display function portion 142, Prepayment surplus management department 143, automatic look-up table portion 144, surplus management department 145, Yi Jiguan Close detailed data storage part 146.And, centralized watch function part 140 includes: communication security is reflected Penetrate storage part 147, closed center function part 148, emergency closing function portion 149, centre valve are opened Open function part 140A, center loaded portion 140B and minor leakage timing unit 140C.And, Centralized watch function part 140 includes: test call portion 140D, use time close advance notice portion 140E, do not confirming that communicating department 140F, large-scale combustors arrange communicating department 140G and use Amount increases and reduces communicating department 140H.Additionally, when these function part 141～140H actions, LED, The display parts such as LCD 41 become the display state representing suitable action.

Unit accumulating function portion 141 is gas flow to be carried out with each of multiple traffic differentiation Accumulative function part.Thus, when the combustion gas of specific traffic differentiation uses, it is possible to fire The discount of gas expense.More specifically, unit accumulating function portion 141 by gas flow with many Each of individual traffic differentiation carry out adding up by traffic differentiation accumulating function outside, also include: It is continuing with accumulating function, specifies time-bands accumulating function, add up to accumulating function and the most excellent First set-up function.

Being continuing with accumulating function is that more than specified amount combustion gas is connected in the traffic differentiation specified By the function of flux cumulating in the case of continuous use.Thus, such as can distinguish and belong to same flow The bogey of amount differentiation and radiator (hot-air blower), carry out adding up by Gas appliance difference, energy Enough discounts carrying out combustion gas expense when the use of specific Gas appliance.

Specifying time-bands accumulating function is in the appointment time-bands (what day time) set The gas flow of the whole traffic differentiation used carries out the function part added up.Thereby, it is possible to Specific what day, the combustion gas of time carry out the discount of combustion gas expense when using.

Add up to accumulating function be following function: to when unit accumulating function works by flow district Point accumulating function, it is continuing with accumulating function and specifies any one of time-bands accumulating function Gas flow during work adds up.Thereby, it is possible to illustrate and become in unit accumulating function The aggregate-value of flow of discount object.

Indivedual preferential set-up functions are following functions: by traffic differentiation accumulating function, continue to make With accumulating function and specify the merit of among these 3 functions of time-bands accumulating function more than 2 In the case of workable, it is possible to set its priority.By the setting of this priority, Such as in the case of working by traffic differentiation accumulating function and appointment time-bands accumulating function simultaneously, Can only make by traffic differentiation accumulating function validation, make appointment time-bands accumulating function ineffective treatment.

Instrument display function portion 142 is by indivedual accumulative display, pressure information shows and instrument The function part that table information shows.

Unit adds up to show that shown content is: by by traffic differentiation accumulating function, continue to make By the accumulative respective flux cumulating value of accumulating function and appointment time-bands accumulating function.And, In the accumulative display of unit, it is possible to show that the prepayment managed by prepayment surplus management department 143 remains Surplus.

By pressure information display display content it is: current force value, be stored in adjustment number pressure Adjusting maximum and the minima of pressure and being stored in occlusion pressure data and deposit according to storage part The occlusion pressure in storage portion.

Meter information show shown by content be: by cell voltage reduce detection unit 128 sentencing After being set to the reduction of cell voltage until close residue natural law, sentenced by flow-type minor leakage Determine portion 124 or pressure type minor leakage detection unit detect after minor leakage through natural law, And the information of the closedown state of affairs about cut-off valve 60.Include about closing the information of the state of affairs: by Information which function is closed, the information of date-time when closing.

Prepayment surplus management department 143 is the function part that the combustion gas about prepaid manner uses, and is When making prepaid count device count according to the usage amount of combustion gas and reach warning level in surplus Send the function part of prepayment warning.It addition, prepayment surplus management department 143 becomes in surplus Cut-off valve 60 is closed when zero.

Automatic look-up table portion 144 be by by the aggregate-value of gas meter 1 to 3, civil gas management center Send carry out the function part of automatic look-up table here.

Surplus management department 145 is following function part: monitor the combustion gas surplus of fuel cartridge, when When surplus reaches warning level, circulate a notice of surplus warning to civil gas management center 3.Surplus Warning level can with 3 grades set, when fuel cartridge is changed, surplus enumerator is reset. It addition, in order to prevent from forgetting to reset, also circular reset requirement.

Close the detailed data storage part 146 relevant pass to showing in instrument display function portion 142 The information closing the state of affairs stores.Relevant pass in the storage of this closedown detailed data storage part 146 The information closing the state of affairs can be read out by civil gas management center 3, setting apparatus.

Communication security map storage part 147 to will close, warning secure data to Gas Pipe The mapping data used when reason center 3 sends store.Such as by predetermined warning content In the case of civil gas management center 3 sends, would correspond to map the bit data of data to combustion gas Administrative center 3 sends.Civil gas management center 3 has same mapping, the bit data that will receive Compare with reflection thus grasp predetermined warning content.

Closed center function part 148 is to receive the closed center from civil gas management center 3 The function part of cut-off valve 60 is closed during requirement.By closed center function part 148 by cut-off valve 60 In the case of closedown, permitted from the recovery of civil gas management center 3 or setting apparatus without input Claimable signal, cut-off valve 60 can not be opened.

Emergency closing function portion 149 is to receive the emergency cut-off from civil gas management center 3 The function part of cut-off valve 60 is closed during requirement.By emergency closing function portion 149 by cut-off valve 60 In the case of closedown, by operation carriage return button 32, it is possible to open cut-off valve 60.

Centre valve open function portion 140A is following function part: at civil gas management center 3 according to coming In the case of have sent the opening signal of cut-off valve 60 from the request of the user of setting place, will It receives and opens cut-off valve 60.

Center loaded portion 140B is that the reception signal from civil gas management center 3 is to make specific merit The function part can put to good use or stop.Additionally, for various functions, it is also possible to according to from setting Instruction or the operation of carriage return button 32 of device and put to good use or stop.

Minor leakage timing unit 140C is by by flow-type minor leakage detection unit 124 and pressure type Minor leakage detection unit minor leakage detected after through natural law to civil gas management center 3, set Determine the function part that device carries out confirming.

Test call portion 140D is the function part with following effect: by being connected to terminal board Transceiver 1a carries out test and communicates with civil gas management center 3, thus confirms that connection status is No normally.

It is following function part that the use time closes advance notice portion 140E: closed advance notice by the time of use The scheduled time (such as 2 minutes) that function carries out advance notice circular is front, from gas meter 1 to sound Type siren exports, and from the output advance notice alarm of sound type siren.

Not confirm communicating department 140F be following function part: applied flexibly in not confirm, solitary The whether safe of People confirms, combustion gas usage amount be zero date continue for predetermined sky continuously During number (such as can be set as 1 day～15 days), circulate a notice of.

It is (to be equivalent to confirming traffic differentiation " 12 " that large-scale combustors arranges communicating department 140G No. 16 water heaters) more than Gas appliance time carry out the function part circulated a notice of to civil gas management center 3.

Usage amount increase reduce communicating department 140H be the use time described later close increase again Study and minimizing study again carries out the function part circulated a notice of to civil gas management center 3 when setting up.

Fig. 9 is the detailed diagram in the pre-setting function automatically portion 150 shown in Fig. 5.As it is shown in figure 9, Pre-setting function automatically portion 150 includes: initial stage study portion 151, increase learn again portion 152 and Reduce and learn portion 153 again.

Initial stage study portion 151 be by the initial stage study function part, wherein, the initial stage study be Scheduled period (such as early stage 3 days and 11 days later stages amount to 14 days) after being provided with gas meter 1, The threshold value set the threshold value (close value) adding up to flow closing function, increasing flow closing function (close value) and the threshold value (close value) of use time closing function.Relieving delivery After pattern, start in the case of the flow detecting more than predetermined amount of flow (such as 21L/h) Initial stage learns.About the threshold value of use time closing function, each traffic differentiation is set Fixed.In specific traffic differentiation, do not obtain the flow in this differentiation in the whole scheduled period In the case of, for this traffic differentiation, use lower limit as threshold value.Even if it addition, just In phase study, close cut-off valve 60 when detecting the flow of more than particular value, using the time, The termination initial stage learns.In the case of suspended, the initial stage again carrying out again the scheduled period is learned Practise.

Increasing and learning portion 152 again is following function part: after setting threshold value by initial stage study, Consumption patterns in the combustion gas of setting place changes thus the situation of amount of consumed gas increase Under, set new threshold value according to this change.Increase learns portion 152 again and carries out scheduled period (example Such as 7 days) learn again, when 2 days among the scheduled period be detected above monitor rank with On flow value, when using the time, it is determined that learn again to have set up for increasing, and update threshold value.

Reducing and learning portion 153 again is following function part: after setting threshold value by initial stage study, Consumption patterns in the combustion gas of setting place changes thus the situation of amount of consumed gas minimizing Under, set new threshold value according to this change.Reduce and learn portion 153 again by detection supervision rank Above flow value, use the timer reset of time, when being not detected by monitoring more than rank Flow value, use time and timer be when reaching predetermined number of days (such as 28 days), it is determined that for Reduce and learn again set up and updated threshold value.

Additionally, pre-setting function automatically portion 150 is outside above-mentioned, even if adding up to flow to close utilizing Close function, increase flow closing function and the situation using time closing function to be closed Under, it is also carried out learning again.And, even if pre-setting function automatically portion 150 is adding up to flow to close In the case of the lower limit of function and increase flow closing function is elevated pieces of, by specific water boiling device Long-time counter-measure functions by close value in the case of fixing, by expanded function by until close time Between without system limit ground extend in the case of and by siren be not connected with detection Function detection to combustion gas Connecting thus in the case of having raised the higher limit predetermined of leakage alarms device, it is also carried out again Study.The study again of these 4 situations relevant is referred to as forcing to learn again.

Additionally, in above-mentioned, the point carrying out reset operation is illustrated, but for the behaviour that resets Making, operation can be different according to each reset object, it is also possible to identical.

It follows that assemble method and delivery method to the gas meter 1 of the 1st embodiment are carried out Explanation.First, the main body of base plate 21 is installed upstream side senser 21a and downstream by operator Side senser 21b.It addition, prepare contain multiple flow distribution plate 22a and be provided with reticular lamina 22b Multilevel-cell 22, and house the recess in base plate 21.Thus, metering stream list is manufactured Unit 20.

It follows that operator by cowling panel 11d fastened by screw to table body 11, afterwards, will metering Channel unit 20 fastened by screw is to table body 11.It follows that operator is having seal member to be situated between The state of 13 by lower cover 12 fastened by screw to table body 11.

Afterwards, operator by pressure transducer and cut-off valve 60 to be able to ensure that the side of high-air-tightness Formula is arranged on the front openings portion (peristome being connected with combustion gas stream 11c) of table body 11.Connect Get off, the control substrate 40 being equipped with display part 41 and microcomputer 100 etc. is arranged on The front face side of substrate holding plate 42, is arranged on the rear side of substrate holding plate 42 by battery 50. Then, make control substrate 40 chimeric with the adapter of various parts.Afterwards, grounded metal is installed Part (not shown).

It follows that insect protected filter screen (not shown) and front glass 31 are installed to protecgulum 30, and And stick the sealing gasket for guaranteeing water proofing property.It follows that install carriage return button on protecgulum 30 32.Afterwards, check whether front glass 31 is installed on protecgulum 30 by high-air-tightness, through this inspection After looking into, protecgulum 30 is installed to table body 11.

It follows that operator checks before carrying out instrument setting and delivery.In setting and checking, Carry out zero point correction, traffic alignment, examine and determine and add seal.Afterwards, combustion gas is flowed into by operator Mouth 11a and gas flow outlet 11b installs crown cap (not shown), sticks the standard quality certification, spy Determine the authenticating tag of mechanism's (being combustion gas hardware check association of Japan in Japan).

It follows that after operator sets before using terminal board to carry out delivery, finally examine Look into, front surface lower cover 33 is installed and covers terminal board.Finally, operator is by operation instructions Pack Deng together with gas meter 1.Then, packing material is delivered by operator.

As it has been described above, according to the gas meter 1 of the 1st embodiment, it is not necessary to membrane type gas meter is such Film, the drive division such as gear, it is therefore prevented that the maximization that thus results in because of drive division former, weight Change.And, there is not the pressure loss produced because promoting drive division, it is possible to realize metering model The expansion enclosed.It is capable of miniaturization and lightweight and measures range expansion therefore, it is possible to provide Big gas meter 1.

It follows that the 2nd embodiment of the present utility model is described.The tolerance of the 2nd embodiment Table 1 is as the gas meter of the 1st embodiment, but the differences such as a part of composition.Hereinafter, say The bright difference with the 1st embodiment.

Figure 10 is the view sub-anatomy of the gas meter 1 illustrating the 2nd embodiment, and Figure 11 is to show Go out the profile of the Inner Constitution of the gas meter 1 shown in Figure 10.Additionally, about the 2nd embodiment party The outward appearance of the gas meter 1 of formula, due to identical with the outward appearance shown in Fig. 2, therefore omits explanation. It addition, about the 2nd following embodiment, also identical with the 1st embodiment, to towards connecing Illustrated by the gas meter 1 of LP combustion gas of the fuel gas supply from fuel cartridge, but for towards The gas meter of gas is also same.

As shown in Figures 10 and 11, gas meter the 1 and the 1st embodiment of the 2nd embodiment Gas meter compare, the composition of lower cover 12 and metering channel unit 20 is different, and has New Relay linker 70.Additionally, eliminate the diagram of battery 50 in Figure 10 and Figure 11. It addition, Figure 10 shows the pressure transducer 80 eliminating diagram in the 1st embodiment.

In the example shown in Figure 10, lower cover 12 is formed with the flow direction strip along combustion gas Recess 12a.And, lower cover 12 has wall portion 12b at the long side direction central part of recess 12a. Recess 12a is divided into the 1st recess 12c and the second recesses of outlet side of entrance side by wall portion 12b 12d, its height degree of depth less than recess 12a.Additionally, recess 12a is flowed into combustion as at water Water holding department in the case of in the 11c of air-flow road and function.

It addition, metering channel unit 20 also has Jie and is between lower cover 12 and multilevel-cell 22 Dividing plate 23 (seal member).Dividing plate 23 is by the wall portion 12b being positioned in lower cover 12.? Have on this dividing plate 23: the horizontal arrangement flat plate portion 23a on wall portion 12b；With set Put 2 thickening part 23b of end, direction before and after gas meter 1.Multilevel-cell 22 is configured Between 2 thickening part 23b, and it is positioned on plate portion 23a.Although additionally, eliminate diagram, But in the 2nd embodiment, multilevel-cell 22 is also built-in with multiple flow distribution plate, front and back Direction will metering stream segmentation.

And, metering channel unit 20 has containment vessel 24 and 2 filter screens 25.

Containment vessel 24 as shown in figure 11, to internal sub-control substrate 26 and ultrasonic type flow velocity Sensor 21a, 21b protect.It addition, in the 2nd embodiment, ultrasonic type flow velocity Sensor 21a, 21b are arranged to: can be by the ultrasonic signal from a side side transmission in multilamellar The lower surface of unit 22 reflects and receives at the opposing party's side joint.I.e., ultrasonic type flow sensor 21a, 21b configures with being inclined by so that the path of ultrasonic signal is in the shape of the letter V shape.Specifically, on Side senser 21a is along from combustion gas inflow entrance 11a towards the tilted direction of second recesses 12d (just in trip 1st diagonal of substantially gas meter 1 in square shape when face is observed) configure, under Side senser 21b is along from gas flow outlet 11b towards the tilted direction of the 1st recess 12c (just in trip 2nd diagonal of substantially gas meter 1 in square shape when face is observed) configure.By This, the propagation path of ultrasonic signal is in the shape of the letter V shape.And, sub-control substrate 26 is equipped with Following function: calculate gas flow rate from the propagation time of ultrasonic type flow sensor 21a, 21b, And obtain gas flow from the gas flow rate calculated.Therefore, at the control substrate 40 shown in Figure 10 In, not carrying these functions, the control substrate 40 of the 2nd embodiment is based on from sub-control base The information of the flow that plate 26 receives adds up.

2 filter screens 25 are to replace the cowling panel 11d shown in Fig. 4 and arrange.1st filter screen 25a Being arranged in the top of the 1st recess 12c, the 2nd filter screen 25b is arranged in the top of second recesses 12d. The composition of each filter screen 25 is: be provided with tool on the cartridge unit of the square shape of above-below direction extension There is the upper surface wall 25c of the opening of fuel gas path.Additionally, cylinder following side is opened.So, Owing to filter screen 25 is tubular, therefore, it is possible to support oneself, and it is provided with tool on this cylinder that can support oneself There is the upper surface wall 25c of the opening of fuel gas path.Rectification shown in upper surface wall 25c Yu Fig. 4 Plate 11d has rectification function equally.Therefore, in the gas meter 1 shown in Figure 10 and Figure 11, Not by labour and the time of the cowling panel 11d fastened by screw shown in Fig. 4 to table body 11, it is possible to Realize assembling the reduction in man-hour.

If here, the inside of gas meter 1 to be split up into combustion gas stream side and atmospheric air chamber side, figure Ultrasonic type flow sensor 21a, 21b of gas meter 1 shown in 2～Fig. 4 are arranged at atmospheric air chamber Side.On the other hand, the ultrasonic type flow sensor of the gas meter 1 shown in Figure 10 and Figure 11 21a, 21b are arranged at combustion gas stream side.And, gas meter 1 base shown in Figure 10 and Figure 11 In the signal from ultrasonic type flow sensor 21a, the 21b being arranged at combustion gas stream side, profit Gas flow is obtained, the combustion that will obtain with the sub-control substrate 26 being similarly provided at combustion gas stream side Throughput is sent to the control substrate 40 of atmospheric air chamber side.Accordingly, it would be desirable to maintaining combustion gas stream side The while of with atmospheric air chamber side bubble-tight, to for from sub-control substrate 26 to controlling substrate 40 The distribution of the information of carrying out transmission etc. connects up.Relay linker 70 is for remaining such Combustion gas stream side and the bubble-tight parts simultaneously distribution connected up of atmospheric air chamber side.

Figure 12 is the enlarged side view of the Relay linker 70 shown in Figure 10 and Figure 11.Such as figure Shown in 12, being configured to of Relay linker 70: include being connected to the 1st of sub-control substrate 26 Adapter 71 and be connected to control the 2nd adapter 72 of substrate 40, and joins between them Line connects.It addition, the pars intermedia at distribution has the seal members such as the o-ring clipping rubber And the sealing partition walls 73 that fastened by screw is on table body 11.Distribution seals partition walls 73 with running through Hermetic terminal 74 connect.Here, hermetic terminal 74 utilizes glass capsulation technology with air-tightness High state runs through sealing partition walls 73.Utilize such Relay linker 70, it is possible to combustion The sub-control substrate 26 of air-flow trackside and the substrate 40 that controls of atmospheric air chamber side are guaranteeing both gas Information transmission is carried out while close property.

Owing to being composition as above, the gas meter 1 of the 2nd embodiment is at sub-control substrate It is equipped with the function part in the flow measurement portion 110 shown in Fig. 5 on 26, control substrate 40 is taken Be loaded with independent function part 120, external mechanical linkage function portion 130, centralized watch function part 140, And pre-setting function automatically portion 150.About each function part 110,120,130,140,150 Details is identical with the 1st embodiment.

It follows that the assemble method of the gas meter 1 of explanation the 2nd embodiment and delivery method. First, operator prepares to be housed and be provided with rectification flat board by multiple flow distribution plates (to be equivalent to the 1st Reticular lamina 22b shown in embodiment) multilevel-cell 22, by ultrasonic type flow sensor 21a, 21b, sub-control substrate 26 and containment vessel 24 are arranged on the top of multilevel-cell 22.Connect Get off, 2 o-rings (not shown) are arranged on the outside of multilevel-cell 22.Thus, system Make metering channel unit 20.

Afterwards, Relay linker 70 is installed to table body 11 by operator, and to sub-control substrate 26 connect the 1st adapter 71.It follows that 2 filter screens 25 are being inserted into table body by operator After in 11, metering channel unit 20 is inserted in table body 11.It follows that operator will pacify Equipped with lower cover 12 fastened by screw of dividing plate 23 to table body 11.Now, multilevel-cell 22 is made to be positioned at On the plate portion 23a of dividing plate 23.

Afterwards, operator by pressure transducer 80 and cut-off valve 60 to be able to ensure that high-air-tightness Mode be arranged on the front openings portion (peristome being connected with combustion gas stream 11c) of table body 11. It follows that install the cutout valve gap for preventing multiple terminals of cut-off valve 60 from contacting with each other (not Diagram).

Afterwards, operator will be equipped with the control substrate of display part 41 and microcomputer 100 etc. 40 front face side being arranged on substrate holding plate 42, make the connection of control substrate 40 and various parts Device (comprising the 2nd adapter 72) is fitted together to.

It follows that insect protected filter screen (not shown), front glass 31, sealing gasket and recovery are pressed Button 32 is installed to protecgulum 30.Afterwards, check whether front glass 31 high-air-tightness is installed on Protecgulum 30, after this inspection, is installed to table body 11 by protecgulum 30.

It follows that operator checks before carrying out instrument setting and delivery, install or stick crown cap (not shown), the standard quality certification, the authenticating tag of particular organization.Afterwards, operator makes After setting before having carried out delivery with terminal board, carry out final inspection, and front surface lower cover is installed 33.Finally, operation instructions etc. are packed together with gas meter 1 by operator.Then, Packing material is delivered by operator.

As it has been described above, according to the gas meter 1 of the 2nd embodiment, in a same manner as in the first embodiment, Can provide and be capable of miniaturization and lightweight and the gas meter 1 of measures range expansion.

Above, illustrate this utility model based on embodiment, but this utility model is not limited to Above-mentioned embodiment, in the scope without departing from objective of the present utility model, can change, Other technology can also be combined as in possible scope.

In the most above-mentioned embodiment, 1 in display part 41 is that LED is arranged on front glass The rear side of 31, but it is not limited to this, it is also possible to it is disposed in other locations, such as, can also set Put the rear side in the light emission lens arranged in connection with carriage return button 32.

Claims (4)

1. a gas meter, its fuel combustion to being arranged in the combustion gas stream of cabinet inside flowing The flow of gas carries out measuring and add up display, it is characterised in that

Including:

Transmitting element, it is sent intermittently by ultrasonic signal in described combustion gas stream；

Receiving unit, it receives the described ultrasonic signal sent by described transmitting element；And

Flow measurement cell, it is connect by described reception unit based on sending from described transmitting element The propagation time of the described ultrasonic signal received, to the gas flow of flowing in described combustion gas stream Measure.

Gas meter the most according to claim 1, it is characterised in that

Also include the tubular that multilevel-cell, described multilevel-cell are provided in described combustion gas stream Body,

Described multilevel-cell has multiple flow distribution plates, and multiple flow distribution plates described are along this multilevel-cell The flow direction of interior described fuel gas extends, and is many by the inside division of described cylindrical body Layer,

Described transmitting element is sent intermittently by described ultrasonic signal in described multilevel-cell.

Gas meter the most according to claim 2, it is characterised in that

Described reception unit be arranged on across described multilevel-cell opposed with described transmitting element one Side, directly receives the ultrasonic signal sent by described transmitting element.

Gas meter the most according to claim 2, it is characterised in that

Described transmitting element and described reception unit are arranged on the same side of described multilevel-cell,

Described reception unit receives and is sent by described transmitting element and anti-in described multilevel-cell The described ultrasonic signal penetrated.