CN2438100Y - Intelligent monitoring gas meter - Google Patents
Intelligent monitoring gas meter Download PDFInfo
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- CN2438100Y CN2438100Y CN 00235799 CN00235799U CN2438100Y CN 2438100 Y CN2438100 Y CN 2438100Y CN 00235799 CN00235799 CN 00235799 CN 00235799 U CN00235799 U CN 00235799U CN 2438100 Y CN2438100 Y CN 2438100Y
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Abstract
The utility model discloses an intelligent monitoring gas meter which is suitable for the user gas consumption of high voltage and large consumption quantity. The utility model can be used in a mode that a user buys a gas-buying voucher, or the utility model can be used in the double monitoring modes of the gas-buying voucher and a dispatching center, or the utility model is directly controlled by the dispatching center. The utility model is composed of a turbine flowmeter, a flow guide sleeve, an intelligent control part and an electrically operated valve. The utility model has the advantages of simple structure, accurate metering and high reliability.
Description
The utility model relates to the gas meter, flow meter that is used for the gas consumption metering, in particular, relates to the intelligent monitoring gas meter, flow meter of big flow gas consumption metering.
Gas meter, flow meter is to be used for the measurement instrument that metering user uses combustion gas (for example, coal gas, natural gas) consumption.Common being seen gas meter, flow meter is the gas meter, flow meter of low pressure air feed that is applicable to the low discharge of family, and its ways of connecting is analogous to watt-hour meter, the connected mode of tap water meter.One end of gas meter, flow meter, promptly input end is connected to gas pipeline, the other end, promptly output terminal is connected on the kitchen range through connecting tube, and when the user used combustion gas, combustion gas entered kitchen range from gas pipeline through gas meter, flow meter, connecting tube; Meanwhile, combustion gas promotes the blade rotation in the table through gas meter, flow meter the time, a gear is arranged on the sharf, and this gear connects a mechanical counter.In case the user stops using combustion gas, the combustion gas input also stops immediately, and blade and mechanical counter stop operating.At this moment, can determine the gas consumption of this moon of user and charge in view of the above from the reading on the gas meter, flow meter.But this gas meter, flow meter is not suitable for using the big flow combustion gas user of high-pressure air feed, for example, bears several ten thousand even the heat supply center of millions of square metres of groups of building heat supplies.On the other hand, also have such fact, such user relatively disperses, and it is also inconvenient to table look-up.
Therefore, the purpose of this utility model is to provide a kind of intelligent monitoring gas meter, flow meter that is applicable to big flow combustion gas user's gas metering.
According to an aspect of intelligent monitoring gas meter, flow meter of the present utility model, it is by turbo flow meter, the water conservancy diversion cover, Based Intelligent Control partly and the electrically operated valve composition, wherein:
Turbo flow meter is by turbine, and rotor and housing are formed, and an end of housing connects the high-pressure gas supply line through electrically operated valve, and the other end is connected with gas combustion apparatus, described gas combustion apparatus, for example gas fired-boiler.
Water conservancy diversion is sleeved in the housing, between electrically operated valve and turbine.The effect of water conservancy diversion cover is to play air-flow arrangement effect after combustion gas enters turbo flow meter, make combustion gas can promote turbine rotation equably.
Based Intelligent Control partly comprises:
---an epitrochanterian magnetosensitive speed probe that is contained in turbo flow meter, the rotating speed of this sensor senses turbine, and this signal is sent to CPU, so that calculate user's preliminary gas consumption;
---a temperature compensation means, this compensation system by the fuel gas temperature that places rotor in the turbo flow meter and the temperature sensor between gas combustion apparatus and record with put fixed reference temperature (for example 20 ℃) and compare, determine the variation of the combustion gas density that causes owing to temperature variation, and then determine user's preliminary gas consumption is revised, and these are linear relationship.Described temperature compensation is to provide with the penalty coefficient form;
---a pressure compensator, this compensation system by the gaseous-pressure that places rotor in the turbo flow meter and the pressure transducer between gas combustion apparatus and record with put fixed reference pressure (for example atmospheric pressure) and compare, determine to change the variation of the combustion gas density that causes owing to pressure, and then determine user's preliminary gas consumption is revised, and these are linear relationship.Described pressure compensation is to provide with the penalty coefficient form;
---purchase gas voucher input media for one, comprise IC-card according to the gas voucher of purchasing described in the utility model, magnetic card, the code exchange is inserted coins etc.When the user uses combustion gas, will purchase the gas voucher and insert input media, CPU reads in and the control system operation;
---a CPU;
---a display device; With
An electrically operated valve, this electrically operated valve comprise one by the extraneous signal drive electric motor.
According to an embodiment of the present utility model, the Based Intelligent Control of gas meter, flow meter comprises also that partly reception is from the air feed of gas company dispatching center or the signal and open or close electrically operated valve by CPU and supply with combustion gas or stop the receiving trap of air feed and send the actual gas consumption of user so that the data of dispatching center when purchasing the gas voucher according to the user make whether continuing to open the electrically operated valve air feed to the gas company dispatching center of stopping the supple of gas or steam.
According to another aspect of Based Intelligent Control gas meter, flow meter of the present utility model, it is by turbo flow meter, the water conservancy diversion cover, Based Intelligent Control partly and the electrically operated valve composition, wherein:
Turbo flow meter is by turbine, and rotor and housing are formed, and an end of housing connects the high-pressure gas supply line by electrically operated valve, and the other end is connected with gas combustion apparatus, described gas combustion apparatus, for example gas fired-boiler.
Water conservancy diversion is sleeved in the housing, between electrically operated valve and turbine.The effect of water conservancy diversion cover is to play air-flow arrangement effect after combustion gas enters turbo flow meter, make combustion gas can promote turbine rotation equably.
Based Intelligent Control partly comprises:
---an epitrochanterian magnetosensitive speed probe that is contained in turbo flow meter, the rotating speed of this sensor senses turbine, and this signal is sent to CPU, so that calculate user's preliminary gas consumption;
---a temperature compensation means, compensation system by the fuel gas temperature that places rotor in the turbo flow meter and the temperature sensor between gas combustion apparatus and record with put fixed reference temperature (for example 20 ℃) and compare, the variation of definite combustion gas density that causes by temperature variation, and then determine user's preliminary gas consumption is revised, and these are linear relationship.Described temperature compensation is to provide with penalty coefficient;
---a pressure compensator, the gaseous-pressure that this compensation system records by rotor in turbo flow meter and the pressure transducer between gas combustion apparatus with put fixed reference pressure (for example atmospheric pressure) and compare, determine owing to pressure changes the combustion gas variable density that causes, and then determine user's preliminary gas consumption is revised, and these are linear relationship.Described pressure compensation is to provide with the penalty coefficient form;
---reception is from the air feed of gas company dispatching center or the signal and open or close the receiving trap that electrically operated valve is supplied with combustion gas or stopped air feed by CPU of stopping the supple of gas or steam, with send the actual gas consumption of user to the gas company dispatching center whether continue the electrically operated valve air feed of opening an account so that make the dispatching center;
---a CPU;
---a display device; With
An electrically operated valve, this electrically operated valve comprise one by the extraneous signal drive electric motor.
Above-mentioned purpose of the present utility model and other purpose and advantage thereof will be more readily apparent from by the detailed description below in conjunction with the accompanying drawing illustrated embodiment, and accompanying drawing has:
Fig. 1 is the cut-open view according to first embodiment of intelligent monitoring gas meter, flow meter of the present utility model;
Fig. 2 is the cut-open view of the turbo flow meter of amplification;
Fig. 3 is a Based Intelligent Control physical construction synoptic diagram partly;
Fig. 4 is a Based Intelligent Control shown in Figure 3 process flow diagram partly;
Fig. 5 is Based Intelligent Control circuit theory diagrams partly;
Fig. 6 is an embodiment of circuit theory diagrams shown in Figure 5;
Fig. 7 is the cut-open view according to second embodiment of intelligent monitoring gas meter, flow meter of the present utility model;
Fig. 8 is a Based Intelligent Control physical construction synoptic diagram partly;
Fig. 9 is a Based Intelligent Control shown in Figure 8 process flow diagram partly;
Figure 10 is Based Intelligent Control circuit theory diagrams partly.
At first with reference to first embodiment of Fig. 1-6 explanation, as shown in the figure, intelligent monitoring gas meter, flow meter of the present utility model comprises turbo flow meter 1, water conservancy diversion cover 2, Based Intelligent Control part 3 and electrically operated valve 4.Flowmeter has the housing 11 that two ends communicate, and the one end communicates with the gas inlet pipe road through electrically operated valve 4, and the other end connects gas combustion apparatus, for example gas fired-boiler.The inwall of housing 11 has the lining 12 of a rest water conservancy diversion cover 2 and the lining 13 of a rest flowmeter pulley base 14 respectively, the rotating shaft 15 of flowmeter is supported in the turbine seat 14 by bearing 16A and 16B, one end of rotating shaft 15 is equipped with turbine 17, the other end is equipped with rotor 18, and the magnetosensitive speed probe 19 of detection rotor rotating speed is housed on the rotor.Water conservancy diversion cover 2 has axisymmetric streamlined contour, after combustion gas is by the input of gas inlet pipe road, described water conservancy diversion cover 2 combustion gas with input are organized into and can promote turbine 17 to distribute uniformly, combustion gas by turbine 17 enters user's gas combustion apparatus through turbine seat 14, for example the gas fired-boiler (not shown).When turbine 17 is passed through in combustion gas, turbine rotation, drive rotating shaft 15 and 18 rotations of the rotor on it simultaneously, the rotating speed of rotor 18 rotations is detected by magnetosensitive speed probe 19, and the revolution signal that sensor arrives passes through to fail the preliminary gas consumption that CPU calculates the user behind impulse meter 37 (Fig. 3) counting.
Based Intelligent Control partly 3 rests is electrically connected by lead 31 on turbo flow meter 1 therebetween.Based Intelligent Control part 3 has a shell 32 (Fig. 3), an installing plate 36 is housed in it, be equipped with on the installing plate 36 and insert the input media 33 of purchasing the gas voucher, the display device 34 of actual gas consumption and mainboard (CPU) 35, CPU35 connects the effect of the connection bus that exchanges except that having as signal, mainly be to detect control, will describe in detail in the back this by software.Based Intelligent Control part 3 also comprises a temperature compensation means 38, temperature compensation means 38 comprises that further one is inserted the rotor of turbo flow meter and the temperature sensor 51 between the electrically operated valve 4, fuel gas temperature that this sensor records and temperature compensation means 38 are put fixed reference temperature value and are compared and send into CPU, to determine since variation of temperature cause to combustion gas density, and then the compensation that gas consumption is changed.How CPU35 compensates and will describe in detail below this.Based Intelligent Control part 3 also comprises a pressure compensator 39, this device comprises the rotor 18 of an insertion flowmeter and the pressure transducer 52 between the electrically operated valve 4, pressure that sensor 52 records and pressure compensator 39 are put fixed reference pressure value and are compared and send into CPU, to determine since the variation of pressure cause to combustion gas density, and then the compensation that customer volume is changed.How CPU35 compensates and will describe in detail below this.
With reference now to Fig. 4, partly 3 flow process control of Based Intelligent Control is described.As shown in the figure, program step 100 start voluntarily by the user enter step 101 after, Based Intelligent Control is power supply partly, and all demonstrations are made zero, and comprises preliminary gas consumption, temperature, pressure, actual gas consumption etc.Treat to enter after each video data makes zero step 102 pair intelligence control system and carry out self check.The purpose of self check is to confirm whether each composition partly is in normal condition.There is fault in part if the self check step is found control, and for example, data presented is not inconsistent with test input data, and program is returned step 101, and pending fault reenters step 102 after getting rid of.After the self check step was passed through, the user can enter and use gaseity.
According to an embodiment of the present utility model, after program is passed through step 102, the scheduling signals from the dispatching center at first checking, step 103 is not arranged.Scheduling signals receives and sends into CPU by the receiving trap 41 of intelligence part 3.If do not receive scheduling signals, illustrate that the user uses gas, promptly open electrically operated valve 4, combustion gas from steam line through electrically operated valve 4, turbo flow meter, entering gas combustion apparatus is not to be controlled by the dispatching center.Program enters step 104 and checks whether the user uses gas consumption to purchase the gas voucher, if using, the user purchases the gas voucher, program enters the voucher detection and reads in subroutine, when the user will purchase gas voucher input media, pair purchase the gas voucher in step 211 and discern authentication, the content of reading in step 212 then, for example IC-card or magnetic card are read the quantity of purchasing tolerance.These contents deposit EEPROM in step 213.It should be noted that, under the situation of the scheduling signals that does not have the dispatching center, when finishing, step 213 step sends a signal (step 105) of opening electrically operated valve 4 through CPU, combustion gas enters gas combustion apparatus, at this moment impulse meter 37 beginning is with the gas consumption (step 106) of the form metering user of umber of pulse, and then converts umber of pulse to preliminary gas consumption Vo in step 107 by CPU.Meanwhile, fuel gas temperature and gaseous-pressure and the demonstration in step 110 in step 108 and 109 is passed through temperature sensor 51 and pressure sensing 52 detection turbo flow meters 1 respectively.Then test result is sent into temperature compensation means 38 and pressure compensator 39 and reference temperature and reference pressure respectively and sent into CPU after relatively.Accounting temperature penalty coefficient K1 and pressure compensation COEFFICIENT K 2 (step 111) are then calculated actual gas consumption V standard in step 112 respectively.The actual gas consumption V standard that obtains is in step 214 and the content on the gas voucher purchased that is stored among the EEPROM, the tolerance of for example putting down in writing on the IC-card of purchasing compares, if purchase content on the gas voucher greater than actual gas consumption, show that electrically operated valve 4 should be shown in an open position, and continues air feed to the user.In this case, after step 216 inspection is errorless, turn back to step 105.If the content of EEROM storage is less than actual gas consumption, show that the gas consumption that the user buys uses up, in this case, step 217 make the decision of closing electrically operated valve 4 and through step 218 check errorless after, program finishes in step 219, returns step 102 and awaits orders.
According to an embodiment of the present utility model, under the situation that does not have scheduling signals, and do not detect the user in step 104 yet and use and to purchase the gas voucher.In this case, the user uses combustion gas then to open electrically operated valve 4 air feed by pressing button voluntarily.Should be noted that it is to be in self-locking state that this button uses under the situation of purchasing the gas voucher the user.Obviously, this duty similar to the prior art, difference is that final user's actual gas consumption is through the temperature and pressure correction.
According to another embodiment of the utility model, if the scheduling signals that exists the dispatching center to send, and the user also uses and purchases the gas voucher, in this case, and user's air feed and stop air feed and control by the dispatching center.In other words, when program after step 102 is finished self check, detect scheduling signals in step 103, the air feed that the user is described will be controlled by the dispatching center, and also detect the user in step 104 and use and to purchase the gas voucher, at this moment, electrically operated valve 4 be by Based Intelligent Control partly 3 receiving trap 41 receive scheduling signals after CPU opens, purchase gas voucher identification, read with storage subroutine in open electrically operated valve 4 instruction then be in off-state, in other words, this subroutine can not be sent the instruction of opening electrically operated valve 4.After obtaining actual gas consumption in step 112, except that go out with data such as preceding enter step 214 and EEPROM storage purchase gas certificate properties relatively, simultaneously with these data by Based Intelligent Control partly 3 dispensing device 41 be sent to the dispatching center.Step 214 with EEPROM storage purchase gas certificate properties and actual gas consumption relatively after, if the former is greater than the latter, step 215 is made and is continued to open the decision of electrically operated valve 4 and return step 105 after step 216 inspection, the user can continue to use gas.If the former is less than the latter, step 217 is made the decision of closing electrically operated valve 4 and is confirmed through step 218 inspection, and program enters step 219 and finishes, and returns step 102 then and awaits orders.According to an embodiment of the present utility model, the dispatching center is recorded in the comparative result of the data at this center and user's actual gas consumption in the time of can purchasing the gas voucher according to the user, in case find that the former is less than the latter, scheduling can directly be sent the signal that stops air feed and be confirmed through step 218 inspection, and program finishes and returns step 102 and await orders in step 219.According to another embodiment of the present utility model, in case the dispatching center finds when the user provides gas pipeline to break down or during maintenance, the dispatching center can directly stop to the user air feed.
For the scheduling signals that has the dispatching center and the user does not use and purchases this situation of gas voucher and will be explained below.
Below with reference to Based Intelligent Control partly the circuit theory diagrams of Fig. 5 explanation according to intelligent monitoring gas meter, flow meter shown in Figure 1.As shown in the figure, be to supply with CPU after power supply inserts by power supervisor.The effect of power supervisor is except the power supply that guarantees CPU and each device, it is regular based on gas meter, flow meter also, for example one month, detect the characteristics of a user's gas consumption, therefore, power supervisor to delay the aging of CPU and other electron device, increases the serviceable life of gas meter, flow meter guaranteeing to make under the condition of electricity consumption CPU to be under no-voltage or the lower voltage status.
CPU also bears the function of connecting bus except realizing computing and logic determines.
Use according to intelligent monitoring gas meter, flow meter user of the present utility model and to purchase gas voucher or gas company dispatching center and add the user and use and purchase the gas voucher and jointly control under the state status, be respectively described below with reference to Fig. 5:
Use the user and to purchase under the gas voucher situation, CPU accepts that the user uses the information purchased on the gas voucher and in order to the operation of control gas meter, flow meter.Specifically, after the user will purchase gas voucher insertion input media 33, CPU at first discerned purchasing the gas voucher, reads the content on the voucher after the affirmation, for example purchases tolerance etc., and deposits EEPROM in.After depositing in, CPU sends the signal of opening valve to electrically operated valve 4, and combustion gas is from electrically operated valve, and turbo flow meter 1 enters gas combustion apparatus.Promote turbine 17 and rotate when flowmeter is passed through in combustion gas, be contained in the rotating speed of magnetosensitive speed probe 19 detection rotors 18 on the rotor 18, this signal drives the impulse meter 37 of Based Intelligent Control part 3 and counts.The data of step-by-step counting are tried to achieve the preliminary gas consumption V of unmodified after CPU handles
o, simultaneously data are shown on display 34.
CPU also accepts temperature signal and the pressure signal from temperature compensation means 38 and pressure compensator 39.The temperature sensor 51 of temperature compensation means 38 and the pressure transducer 52 of pressure compensator 39 detect the temperature and pressure in the turbo flow meter 1 respectively and are presented on the display 34, above-mentioned testing result respectively with the temperature and pressure reference value comparison of presetting after A/D conversion input CPU, CPU draws temperature and pressure penalty coefficient K with this result after as calculated
1And K
2, and then calculate actual gas consumption V
StandardAnd on display 34, show.
CPU after obtaining actual gas consumption, from EEPROM, read purchase in the gas voucher purchase tolerance and with actual gas consumption relatively.If purchase tolerance greater than use amount, the user can continue to use combustion gas.If it is identical with gas consumption or show a small surplus to purchase tolerance, and is below tolerance limit, at this moment send the signal of valve-off to electrically operated valve 4, after affirmation, combustion gas no longer enters gas meter, flow meter, is ready.Up to the user new combustion gas voucher is imported.
CPU also carries out frequency division with regard to the input pulse of impulse meter, to change range, is fit to different user demands.
Purchase the gas voucher in user's use, have again under the situation of dispatching center's scheduling signals, the user at first will purchase the gas voucher and insert input media 33, and CPU discerns purchasing the gas voucher, reads the content on the voucher after the affirmation, for example purchases tolerance etc., and deposits EEPROM in.In case gas meter, flow meter Based Intelligent Control receiving trap 41 partly receives the air feed signal from the dispatching center, this signal sends the signal of opening valve through CPU to electrically operated valve 4, and combustion gas enters gas combustion apparatus from electrically operated valve 4 through turbo flow meter 1.Promote turbine 17 and rotate by flowmeter 1 time, be contained in the rotating speed of magnetosensitive revolution speed sensing 19 detection rotors 18 on the rotor 18, this signal drives partly 3 impulse meter 37 countings of Based Intelligent Control.The data of step-by-step counting are tried to achieve the preliminary gas consumption V of unmodified after CPU handles
o, simultaneously data are shown on display 34.
CPU also receives temperature signal and the pressure signal from temperature compensation means 38 and pressure compensator 39.The temperature sensor 51 of temperature compensation means 38 and pressure transducer 52 detect the fuel gas temperature and the gaseous-pressure of turbo flow meter 1 respectively and are presented on the display 34, the result of above-mentioned detection respectively with the temperature and pressure reference value comparison of presetting after A/D conversion input CPU, CPU draws temperature compensation coefficient K with this result after as calculated
1With the pressure compensation COEFFICIENT K
2, and then calculate actual gas consumption V
StandardAnd on display 34, show.
CPU after obtaining actual gas consumption, from EEPROM, read on the one hand purchase in the gas voucher purchase tolerance and with actual gas consumption relatively.If purchase tolerance less than use amount, the user can continue to use combustion gas.If it is identical with gas consumption or show a small surplus to purchase tolerance, and is below tolerance limit, at this moment send the signal of valve-off to electrically operated valve 4, after affirmation, combustion gas no longer enters gas meter, flow meter, is ready.Purchase the input of gas voucher up to the user with new.On the other hand, the actual gas consumption that CPU is obtained sends to the dispatching center through Based Intelligent Control dispensing device partly, what the dispatching center understood the user in view of the above uses the gas situation, simultaneously can also access the user and purchase the data of purchasing tolerance comprising on the gas voucher, these data and the actual gas consumption of user are compared, in case when finding that the user purchases gas and is equal to or less than the actual gas consumption of user, the dispatching center can send the signal that stops air feed equally, receive after CPU sends shutdown signal to electrically operated valve 4 through receiving trap 41, after affirmation, combustion gas no longer enters gas meter, flow meter, is ready.
CPU also carries out frequency division with regard to the input pulse of impulse meter, to change range, adapts to different user demands.
Owing to have information carrying means between dispatching center and user's the gas meter, flow meter, therefore, user's gas pipeline breaks down or when accident such as keeping in repair, the dispatching center can directly close the gas supply to the user in case dispatching center's discovery is transported to.
An embodiment of block diagram shown in Figure 5 is described below with reference to Fig. 6.Based Intelligent Control according to intelligent monitoring gas meter, flow meter of the present utility model partly is in off-position at ordinary times.When inserting, the user purchases that the gas voucher starts or when starting voluntarily or starting by the transfer center by the user, that is at input media interface J
41,2 pin or at sampling interface J
2Have+5 volts signal is by the capacitor C to power supervisor
6Or C
7Charging is through resistance R
11, diode D
3Or resistance R
8, diode D
4To transistor T
4Base stage produce a forward voltage, transistor T
4Conducting, transistor T
5Base potential reduces, transistor T
5Conducting, V
1Output pin 3 give single-chip microcomputer IC
1Power on, when voltage rises to 3.3 volts, V
1Make IC
1Reset, and when rising to 5.5 volts, by quartz (controlled) oscillator XC
1, capacitor C
1, C
2The crystal oscillating circuit vibration of forming, IC
1Work, IC
1Pin 27 pass through resistance R
2To diode T
4Base stage provides keeps T
4The operating voltage of conducting certain hour.In this section period, single-chip microcomputer IC
1Carry out following a series of work.
By single-chip microcomputer IC
111,12 pin measure respectively from resistance R
15, R
16The high level that comes is in the state that opens or closes with the electrically operated valve 4 of discerning gas meter, flow meter; Read memory IC by single- chip microcomputer 14,15,16 pin
2Whether (ATM24CO1A) content purchases gas (purchase the gas voucher the user and insert the back) to understand this user; By single-chip microcomputer IC
1Pin 1,2, through resistance R
20, R
21To transistor T
1, T
2, with oxide-semiconductor control transistors T
1Or T
2Conducting whether come pilot relay JD
1, JD
2Thereby, reach the function of the electrically operated valve of switch gas meter, flow meter; Single-chip microcomputer IC
1Pin 4 pass through resistance R
14, R
13, R
12Be transistor T
6, T
7Base stage bias voltage is provided.When plug-in card or sampled signal are come, be transistor T
6Or T
7Collector transistor T is provided+5 volts voltage
6Or T
7Conducting, transistor T
6Emission single-chip microcomputer IC very
1Pin 26 provide a positive voltage, single-chip microcomputer IC
1Be identified as to insert and purchase the gas voucher.Single-chip microcomputer IC
122,23,24 pairs of insertions of pin in (J
5) the gas voucher of purchasing check the table number password and purchase tolerance etc., this moment single-chip microcomputer IC
1Pin 6 through resistance R
22To transistor T
3Base stage one voltage is provided, make transistor T
3Conducting causes input media J
5Pin 7 become low-voltage; While single-chip microcomputer IC
1By pin 6,7 at liquid crystal mouth J
8On the liquid crystal display table number, purchase tolerance etc.Single-chip microcomputer IC
1Measure temperature by pin 13 external pressure transducer 52 gaging pressures with by pin 21 external temperature sensors 51.
Whole procedure executes, single-chip microcomputer IC
1Pin 27 stop for high level transistor T
4End single-chip microcomputer IC
1Outage is waited for and is come sampling pulse or plug-in card to power on for the second time.
In addition, single-chip microcomputer IC
1Pin 25 meet V
2, resistance R
23Be single-chip microcomputer IC
1The power down protection circuit.Resistance R
5, R
10Be respectively memory IC
2Pin 56 on draw resistance, RJ
104Be single-chip microcomputer IC
1The biasing exclusion of liquid crystal mouth and deck circuit.
Below with reference to second embodiment of Fig. 7 to Figure 10 explanation according to intelligent monitoring gas meter, flow meter of the present utility model.The difference of second embodiment and first embodiment is the air feed of second embodiment and stops air feed all by the control of gas company dispatching center that its advantage is that the supply allotment of combustion gas concentrates on the dispatching center, helps realizing network management.Also simplify the structure of gas meter, flow meter on the other hand, cancelled combustion gas voucher input media and storer.Second embodiment part identical in the accompanying drawings with first embodiment will mark with identical label, and they are no longer explained.
Fig. 7 and Fig. 8 show gas meter, flow meter and Based Intelligent Control cut-open view partly respectively, and they only are to have removed the input media 33 of purchasing the gas voucher with the difference of Fig. 1 and Fig. 2, and all the other are identical, again and again repetition.
The Based Intelligent Control process flow diagram partly of second embodiment is described below with reference to Fig. 9.
Program is started voluntarily by the user from step 300 and begins to enter step 301, and Based Intelligent Control partly inserts power supply, and all demonstrations are made zero.Treat to enter after each demonstration is made zero step 302 pair Based Intelligent Control and partly carry out self check.As find fault in self check, program is returned step 301, reenters step 302 etc. fault after getting rid of.After the self check step was passed through, the user can enter and use gaseity.
When Based Intelligent Control partly 3 receiving trap 41 receive the air feed signal (step 303) that the gas company dispatching center sends, open electrically operated valve 4 (step 304) through CPU, combustion gas flows into from turbo flow meter 1 and enters gas combustion apparatus through electrically operated valve.Combustion gas will promote turbine 17 rotations after entering turbine flow 1, be contained in the rotating speed of magnetosensitive speed probe 19 detection rotors 18 on the rotor 18, these rotary speed data driving pulse counter 37 step-by-step countings (step 305), the data of impulse meter 37 are sent into CPU, calculate the preliminary gas consumption V of user's unmodified in step 306
o, and preliminary gas consumption shown (step 309) on display 34.Measure the gaseous-pressure in the turbo flow meter 1 respectively and on display 34, show (step 309) by the temperature sensor 51 and the pressure transducer 52 of temperature compensation means 38 and pressure compensator 39 respectively in step 307 and 308 simultaneously.The temperature and pressure that records with the temperature reference value that presets and pressure reference value relatively back A/D conversion send CPU accounting temperature and pressure correction factor K to user's gas consumption
1And K
2(step 310).Then, calculate user's actual gas consumption V by CPU in step 311
Standard, and demonstration (step 309) on display 34.
The actual gas consumption that CPU calculates also sends to the dispatching center by the dispensing device 40 of intelligence controlling device 3.The dispatching center collects the combustion gas expense to the user in view of the above, and on the other hand, the dispatching center can also be according to different reasons, and for example, the non-payment combustion gas expense of user is led to user's fuel gas supply conduit fault or maintenance, and the requirement of perhaps answering the user stops the user being supplied with combustion gas.After receiving trap 41 is received the signal that the dispatching center stops air feed
CPU closes electrically operated valve 4 (step 312), detects in step 313 then and confirms to have shut valve, and program finishes in step 314, and returns step 302 and await orders.
The circuit theory diagrams of second embodiment are described with reference to Figure 10 at last.As shown in the figure, power supply inserts the back and supplies with CPU by power supervisor.It may be noted that power supervisor among second embodiment and the power management utensil identical functions among first embodiment.
CPU receives from the air feed of dispatching center by receiving trap 41 and dispensing device 40 and stops the air feed signal, and sends user's actual gas consumption to it.Receive the air feed signal of dispatching center when receiving trap 41 and open electrically operated valve 4 through CPU, combustion gas is introduced.Promoting turbine 17 when flowmeter 1 is passed through in combustion gas rotates, be contained in magnetosensitive speed probe 19 on the rotor 18 and detect the rotating speed of rotor 18, the impulse meter 37 that this signal drives Based Intelligent Control part 3 carries out step-by-step counting, and the data of step-by-step counting are tried to achieve the preliminary gas consumption V of unmodified after CPU handles
o, show at display 34 simultaneously.
CPU also receives temperature signal and the pressure signal of repaying device 38 and pressure compensator 39 from the temperature happiness.The temperature sensor 51 of temperature compensation means 38 and the pressure transducer of pressure compensator 39 detect fuel gas temperature and the gaseous-pressure in the turbo flow meter 1 respectively and are presented on the display 34, above-mentioned testing result respectively with the temperature and pressure reference value comparison of presetting after A/D conversion input CPU, CPU draws this result after as calculated the penalty coefficient K of gas consumption
1And K
2, calculate actual gas consumption V again
StandardAnd be presented on the display 34.
CPU is obtaining behind the actual gas consumption these data to be sent to the dispatching center through dispensing device 40, and the dispatching center can charge in view of the above.The dispatching center can also look the different situations decision user is stopped air feed.When dispatching center's decision stops user's air feed, send signal to gas meter, flow meter, receiving trap 41 CPU after receiving above-mentioned signal closes electrically operated valve 4, after the affirmation, combustion gas no longer enters gas meter, flow meter, is ready, and sends new air feed signal until the dispatching center.
The applicant is described in detail with regard to design of the present utility model and embodiment; the professional and technical personnel can make various improvement and conversion on this basis; but these improve and conversion does not all break away from design of the present utility model, all within the protection domain that claims limit.
Claims (12)
1, a kind of intelligent monitoring gas meter, flow meter is characterized in that by turbo flow meter, the water conservancy diversion cover, and Based Intelligent Control part and electrically operated valve are formed, wherein:
Turbo flow meter is by turbine, and rotor and housing are formed, and an end of housing connects the high-pressure gas supply line through electrically operated valve, and the other end links to each other with gas combustion apparatus, also comprises the interface that partly is connected with Based Intelligent Control on the housing;
Water conservancy diversion is sleeved between housing and electrically operated valve junction and the turbine;
Based Intelligent Control partly realizes with it being electrically connected by the interface of turbo flow meter, and further comprises:
---a magnetosensitive speed probe that is contained in the detection secondary speed on the rotor of turbine meter;
---a temperature compensation means, this device comprise by placing the temperature sensor between rotor of turbine meter and electrically operated valve to detect fuel gas temperature;
---a pressure compensator, this device comprise by placing the pressure transducer between rotor of turbine meter and electrically operated valve to detect gaseous-pressure;
---an input media of purchasing the gas voucher;
---a CPU; With
---a display device; And
Electrically operated valve, this valve comprise a motor by extraneous signal control.
2, according to the described Based Intelligent Control gas meter, flow meter of claim 1, the wherein said gas voucher of purchasing comprises IC-card, magnetic card and code exchange.
3, according to the described Based Intelligent Control gas meter, flow meter of claim 1, it is characterized in that also comprising:
Reception from the air feed signal of gas company dispatching center and stop the air feed signal receiving trap and
A dispensing device that sends the actual gas consumption of user to the gas company dispatching center.
4, according to the described intelligent monitoring gas meter, flow meter of claim 1, wherein CPU realizes:
Calculate the preliminary gas consumption of user;
The accounting temperature penalty coefficient;
The calculating pressure penalty coefficient;
Calculate the actual gas consumption of user;
Identification, read the content of purchasing the gas voucher and deposit in the storer; Content and the actual gas consumption of purchasing the gas voucher are compared, to determine whether to close electrically operated valve.
5, according to the described Based Intelligent Control gas meter, flow meter of claim 4, wherein said combustion gas voucher comprises IC-card, magnetic card and code exchange.
6, according to the described Based Intelligent Control gas meter, flow meter of claim 1, the extraneous signal that wherein said control electrically operated valve is opened is the signal that sends behind the storer in the content stores of purchasing the gas voucher.
7, according to the described Based Intelligent Control gas meter, flow meter of claim 3, the extraneous signal that the control electrically operated valve of stating is wherein opened is the air feed signal from the gas company dispatching center that is received by receiving trap.
8, according to the described Based Intelligent Control gas meter, flow meter of claim 3, the extraneous signal that wherein said control electrically operated valve is closed is to stop the air feed signal by what receiving trap received from the gas company dispatching center.
9, according to the described Based Intelligent Control gas meter, flow meter of claim 1, wherein said Based Intelligent Control partly also comprises the only power supervisor of power supply when gas meter, flow meter detects.
10, a kind of Based Intelligent Control gas meter, flow meter, base is characterised in that by turbo flow meter, the water conservancy diversion cover, Based Intelligent Control part and electrically operated valve are formed, wherein:
Turbo flow meter is by turbine, and rotor and housing are formed, and an end of housing connects the high-pressure gas pipeline through electrically operated valve, and the other end links to each other with gas combustion apparatus, also comprises the interface that partly is connected with Based Intelligent Control on the housing;
Water conservancy diversion is sleeved between housing and Electrically operated gate junction and the turbine;
Control partly realizes with it being electrically connected by the interface of turbo flow meter, and further comprises:
---a magneto-dependent sensor that is contained in the detection secondary speed on the rotor of turbine meter;
---a temperature compensation means, this device comprise by placing the temperature sensor between rotor of turbine meter and electrically operated valve to detect fuel gas temperature;
---a pressure compensator, this device comprise by placing the pressure transducer between rotor of turbine meter and electrically operated valve to detect gaseous-pressure;
---a CPU;
---reception is from the air feed of gas company dispatching center or stop the receiving trap of air feed signal;
---a dispensing device that sends the actual gas consumption of user to the gas company dispatching center; With
---a display device; And
Electrically operated valve, this electrically operated valve comprise by extraneous signal control motor.
11, according to the described Based Intelligent Control gas meter, flow meter of claim 10, wherein CPU realizes:
Calculate the preliminary gas consumption of user;
The accounting temperature penalty coefficient;
The calculating pressure penalty coefficient;
Calculate the actual gas consumption of user;
12, according to the described Based Intelligent Control gas meter, flow meter of claim 10, the extraneous signal of wherein controlling motor be by receiving trap receive from the air feed of gas company dispatching center or stop the signal of air feed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00235799 CN2438100Y (en) | 2000-06-14 | 2000-06-14 | Intelligent monitoring gas meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00235799 CN2438100Y (en) | 2000-06-14 | 2000-06-14 | Intelligent monitoring gas meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2438100Y true CN2438100Y (en) | 2001-07-04 |
Family
ID=33597480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00235799 Expired - Fee Related CN2438100Y (en) | 2000-06-14 | 2000-06-14 | Intelligent monitoring gas meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2438100Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221774A (en) * | 2015-10-09 | 2016-01-06 | 上海力典电磁阀有限公司 | A kind of gas pipeline control valve based on Internet of Things |
-
2000
- 2000-06-14 CN CN 00235799 patent/CN2438100Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221774A (en) * | 2015-10-09 | 2016-01-06 | 上海力典电磁阀有限公司 | A kind of gas pipeline control valve based on Internet of Things |
| CN105221774B (en) * | 2015-10-09 | 2018-01-19 | 上海力典电磁阀有限公司 | A kind of gas pipeline control valve based on Internet of Things |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SANJIN ELECTRONIC GROUP, BEIJING Free format text: FORMER NAME OR ADDRESS: BEIJING SANJIN INTELLIGENT INSTRUMENT AND METER CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Patentee after: Sanjin Electronic Group, Beijing Patentee before: Beijing Sanjin Intelligent Instrument and Meter Co., Ltd. |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |