CN109696213A - A kind of domestic gas meter - Google Patents
A kind of domestic gas meter Download PDFInfo
- Publication number
- CN109696213A CN109696213A CN201811428006.3A CN201811428006A CN109696213A CN 109696213 A CN109696213 A CN 109696213A CN 201811428006 A CN201811428006 A CN 201811428006A CN 109696213 A CN109696213 A CN 109696213A
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- Prior art keywords
- gas meter
- voltage signal
- data acquisition
- buret
- differential pressure
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- 239000007789 gas Substances 0.000 claims abstract description 93
- 238000000034 method Methods 0.000 claims abstract description 35
- 239000000567 combustion gas Substances 0.000 claims abstract description 10
- 230000003321 amplification Effects 0.000 claims description 14
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 12
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 8
- 239000003345 natural gas Substances 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims 2
- 238000011109 contamination Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000012530 fluid Substances 0.000 description 6
- 238000005259 measurement Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
- G01F1/36—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
- G01F1/363—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction with electrical or electro-mechanical indication
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
- G01F1/36—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
- G01F1/40—Details of construction of the flow constriction devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/06—Indicating or recording devices
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The present invention provides a kind of domestic gas meter, which includes: V coning tower tray buret, MEMS differential pressure pickup, data acquisition process plate and integrated display screen, wherein combustion gas is transmitted to user terminal by V coning tower tray buret；MEMS differential pressure pickup is fixed on V coning tower tray buret, for detecting the differential pressure signal at V coning tower tray buret both ends, and differential pressure signal is converted to voltage signal and is sent to data acquisition process plate；Data acquisition process plate receives voltage signal, and voltage signal is converted to flow information is sent to integrated display screen and show.By implementing domestic gas meter of the invention, have the characteristics that simple structure, install convenient, production cost are low, and improve the contamination resistance of gas meter, flow meter.
Description
Technical field
The present invention relates to gas meter, flow meter fields, and in particular to a kind of domestic gas meter.
Background technique
With the continuous propulsion of China's heating modes and ladder gas price, traditional gas meter, flow meter, which is increasingly unable to satisfy, works as
The demand of lower people's heat metering, current domestic gas meter generally use traditional diaphragm gas meter or new-type MEMS hot type
The gas meter, flow meter of mass flow sensor, wherein the measuring accuracy of diaphragm gas meter is larger by pressure and temperature effect, metering reading
Using traditional mechanical turning wheel, it is big there are measurement error the disadvantages of；And the combustion gas of new-type MEMS thermal type mass flow sensor
Table overcomes the big defect of measurement error of diaphragm gas meter to a certain extent, but its contamination resistance is poor, core
The processing request and processing cost of part flow tube mould group are higher, assembling when there are it is easy to damage the disadvantages of.
Summary of the invention
The technical problem to be solved in the present invention is that overcoming domestic gas meter in the prior art, structure is complicated, it is at high cost,
The defects of contamination resistance is poor, assembling is easy to damage, to propose a kind of domestic gas meter.
The embodiment of the invention provides a kind of domestic gas meters, comprising: V coning tower tray buret, MEMS differential pressure pickup, data are adopted
Collect processing board and integrated display screen, wherein combustion gas is transmitted to user terminal by the V coning tower tray buret；The MEMS pressure difference sensing
Device is fixed on the V coning tower tray buret, for detecting the differential pressure signal at the V coning tower tray buret both ends, and by the pressure difference
Signal is converted to voltage signal and is sent to the data acquisition process plate；The data acquisition process plate receives the voltage letter
Number, and the voltage signal is converted into flow information is sent to the integrated display screen and show.
Optionally, the MEMS differential pressure pickup includes: the first air inlet and the second air inlet, wherein described first into
Stomata is fixedly connected with the front end air entraining pipe on the V coning tower tray buret, detects the first pressure of gas in the front end air entraining pipe
Signal；Second air inlet is fixedly connected with the rear end air entraining pipe on the V coning tower tray buret, is detected in the rear end air entraining pipe
The second pressure signal of gas；The MEMS differential pressure pickup is obtained according to the first pressure signal and the second pressure signal
To the differential pressure signal.
Optionally, first air inlet and second air inlet by loose joint nut respectively with the front end air entraining pipe
It is fixedly connected with the rear end air entraining pipe.
Optionally, the data acquisition process plate includes: front end zeroing circuit, gain control circuit, filter circuit and stream
Measure conversion circuit, wherein the front end zeroing circuit receives the voltage signal, carries out zeroing processing to the voltage signal,
And will zeroing treated that voltage signal is sent to gain control circuit；After the gain control circuit receives the zeroing processing
Voltage signal, zeroing treated the voltage signal is subjected to gain amplification, generates amplification voltage signal, and put described
Big voltage signal is sent to the filter circuit；The filter circuit receives the amplification voltage signal, to the amplification voltage
Signal is filtered, and generates standard voltage signal, and the standard voltage signal is sent to the flow conversion circuit；
The flow conversion circuit receives the standard voltage signal, and the standard voltage signal is converted to the flow information and is sent
It is shown to the integrated display screen.
Optionally, the domestic gas meter further include: gas meter, flow meter cabinet, the gas meter, flow meter cabinet are fixed on the V coning tower tray
On buret；The MEMS differential pressure pickup, data acquisition process plate and integrated display screen are set to the interior of the gas meter, flow meter cabinet
Portion.
Optionally, the lower surface of the data acquisition process plate is fixed on the fixation in the gas meter, flow meter cabinet by screw
On stud, the integrated display screen is fixed on the fixed bolt of data acquisition process plate upper surface setting by screw.
Optionally, the domestic gas meter further include: gas meter, flow meter case lid, the gas meter, flow meter case lid are covered on the gas meter, flow meter
The upper surface of cabinet；The gas meter box, which covers, is provided with display shield aperture, and the display shield aperture is corresponding with the integrated display screen
Setting.
Optionally, the gas meter box, which covers, is provided with multiple push-button units, and the push-button unit is for receiving the use
The key information at family, and the key information is sent to the data acquisition process plate；The data acquisition process plate according to
The key information handles the voltage signal, generates processing information, and the processing information is sent to the integrative display
Screen is shown.
Optionally, the domestic gas meter further include: power storehouse, the power storehouse are set to the interior of the gas meter, flow meter cabinet
Portion is powered for the MEMS differential pressure pickup, data acquisition process plate and integrated display screen.
Optionally, the both ends of the V coning tower tray buret are connect with the air inlet pipe by loose joint nut.
Technical solution of the present invention has the advantages that
The embodiment of the invention provides a kind of domestic gas meters, comprising: V coning tower tray buret, MEMS differential pressure pickup, data are adopted
Collect processing board and integrated display screen, MEMS differential pressure pickup detects the gaseous-pressure difference signal by flowing through V coning tower tray buret, and will
The signal is converted to voltage signal, and voltage signal is converted to corresponding flow information and is firing data acquisition process plate based on the received
It is shown on the integrated display screen of gas meter, the domestic gas table structure is simple, install convenient, production cost are low, and combines
MEMS differential pressure pickup and V coning tower tray buret improve the contamination resistance of gas meter, flow meter.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of domestic gas meter in the embodiment of the present invention；
Fig. 2 is another structural schematic diagram of domestic gas meter in the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of data acquisition process plate in the embodiment of the present invention.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also indirectly connected through an intermediary, it can be with
It is the connection inside two elements, can be wireless connection, be also possible to wired connection.For those of ordinary skill in the art
For, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
As long as in addition, the non-structure each other of technical characteristic involved in invention described below different embodiments
It can be combined with each other at conflict.
The embodiment of the invention provides a kind of domestic gas meters, as shown in Figure 1, above-mentioned domestic gas meter includes: V coning tower tray
Buret 1, MEMS differential pressure pickup 2, data acquisition process plate 3 and integrated display screen 4, wherein combustion gas is passed by V coning tower tray buret 1
Transport to user terminal；MEMS differential pressure pickup 2 is fixed on V coning tower tray buret 1, and the pressure difference for detecting 1 both ends of V coning tower tray buret is believed
Number, and differential pressure signal is converted into voltage signal and is sent to data acquisition process plate 3；Data acquisition process plate 3 receives voltage
Signal, and voltage signal is converted into flow information is sent to integrated display screen 4 and show.In above-mentioned V coning tower tray buret 1
Combustion gas flow direction as illustrated by the arrows in fig. 1.In practical applications, combustion gas enters 1 the inside of V coning tower tray buret, V cone by pipe
Structure can make the gas flowed through generate certain pressure difference in its front and back end.
By the cooperative cooperating of above-mentioned each component part, domestic gas meter provided in an embodiment of the present invention, there is structure
Simply, the low feature of install convenient, production cost, and improve the contamination resistance of gas meter, flow meter.
Domestic gas meter provided in an embodiment of the present invention is described in detail below with reference to concrete application example.
Specifically, in one embodiment, the both ends of above-mentioned V coning tower tray buret 1 and house lead in natural gas tube pass through loose joint nut
Connection.In practical applications, the caliber of used V coning tower tray buret 1 are as follows: DN20, it is consistent with house lead in natural gas pipe diameter,
Both ends are furnished with loose joint nut, can be connected directly between on house lead in natural gas external pipe thread, when there is combustion gas to flow through from V coning tower tray buret 1
When, due to the effect of V cone, just generate certain pressure difference.
In a preferred embodiment, as shown in Fig. 2, above-mentioned MEMS differential pressure pickup 2 includes: the first air inlet 21 and
Two air inlets 22, wherein the first air inlet 21 is fixedly connected with the front end air entraining pipe 11 on V coning tower tray buret 1, detects front end bleed
The first pressure signal of gas in pipe 11；Second air inlet 22 is fixedly connected with the rear end air entraining pipe 12 on V coning tower tray buret 1, inspection
Survey the second pressure signal of gas in rear end air entraining pipe 12；MEMS differential pressure pickup 2 is according to first pressure signal and second pressure
Signal obtains differential pressure signal.In practical applications, the first air inlet 21 and the second air inlet 22 by loose joint nut respectively with
Front end air entraining pipe 11 is fixedly connected with rear end air entraining pipe 12.The MEMS differential pressure pickup 2 is according to domestic gas flow and pressure difference
Characteristic, the MEMS differential pressure pickup 2 of customization, range meet: 0~2KPa, output voltage, and: 0~5V` has measurement accuracy high, surveys
The advantages that amount is stablized, and structural volume is small.
In a preferred embodiment, as shown in figure 3, above-mentioned data acquisition process plate 3 include: front end zeroing circuit 31,
Gain control circuit 32, filter circuit 33 and flow conversion circuit 34, wherein
Front end zeroing circuit 31 receives voltage signal, carries out zeroing processing to voltage signal, and will zeroing treated electricity
Pressure signal is sent to gain control circuit 32.In practical applications, which realizes to MEMS differential pressure pickup 2
The zeroing of the voltage signal of input.
Gain control circuit 32 receives zeroing treated voltage signal, will zeroing treated that voltage signal carries out gain
Amplification generates amplification voltage signal, and amplification voltage signal is sent to filter circuit 33.In practical applications, the gain control
Circuit 32 processed makes the amplitude of voltage signal in the range of analog-to-digital conversion input.
Filter circuit 33 receives amplification voltage signal, is filtered to amplification voltage signal, generates normal voltage letter
Number, and standard voltage signal is sent to flow conversion circuit 34.In practical applications, the filter circuit 33 is for filtering out voltage
Noise included in signal.
Flow conversion circuit 34 receive standard voltage signal, by standard voltage signal be converted to flow information be sent to it is integrated
Display screen 4 is shown.In practical applications, it is integrated in the flow conversion circuit 34 and voltage signal is converted into flow letter
Number preset algorithm, such as temperature compensation algorithm, pressure calibration scheduling algorithm etc., voltage signal is converted into the combustion that user uses
Throughput number is shown on integrated display screen 4, is checked for user, in addition, above-mentioned integrated display screen 4 is also used to show
The work state information of domestic gas meter, such as: the information such as normal work, malfunction, electricity are low.
In a preferred embodiment, as shown in Fig. 2, above-mentioned domestic gas meter further include: gas meter, flow meter cabinet 5, gas meter, flow meter
Cabinet 5 is fixed on V coning tower tray buret 1；MEMS differential pressure pickup 2, data acquisition process plate 3 and integrated display screen 4 are set to combustion
The inside of gas meter cabinet 5.The gas meter, flow meter cabinet 5 can support the effect for fixing other components, also function to other component into
The effect of row protection.
In a preferred embodiment, as shown in Fig. 2, combustion gas is fixed on by screw in the lower surface of data acquisition process plate 3
On fixed bolt 101 in electricity box body 5, integrated display screen 4 is fixed on the setting of 3 upper surface of data acquisition process plate by screw
On fixed bolt 101.
In a preferred embodiment, as shown in Fig. 2, above-mentioned domestic gas meter further include: gas meter, flow meter case lid 6, gas meter, flow meter
Case lid 6 is covered on the upper surface of gas meter, flow meter cabinet 5；It is provided with display shield aperture on gas meter, flow meter case lid 6, shows shield aperture and integrative display
Screen 4 is correspondingly arranged.In practical applications, above-mentioned gas meter, flow meter lid can be connected solid by screw and above-mentioned gas meter, flow meter cabinet 5
Fixed, user can see above-mentioned integrated display screen 4 by above-mentioned display shield aperture, to play the work of protection to integrated display screen 4
With.
In a preferred embodiment, as shown in Fig. 2, being provided with multiple push-button units on gas meter, flow meter case lid 6, push-button unit is used
In the key information of reception user, and key information is sent to data acquisition process plate 3；Data acquisition process plate 3 is according to pressing
Key information handles voltage signal, generates processing information, and processing information is sent to integrated display screen 4 and is shown.In reality
In, above-mentioned push-button unit includes: reset key, display key etc., specifically can need to be configured according to function, the present invention
It is not limited thereto.
In a preferred embodiment, as shown in Fig. 2, above-mentioned domestic gas meter further include: power storehouse 7, power storehouse 7 are arranged
In the inside of gas meter, flow meter cabinet 5, supply power supply is installed in power storehouse 7, is MEMS differential pressure pickup 2, data acquisition process plate 3
And integrated display screen 4 is powered.In practical applications, above-mentioned power storehouse can according to the needs of domestic gas meter product,
It is designed to fill No. 5 batteries of 3 section or lithium battery etc., the present invention is not limited thereto.
In practical applications, the working principle of the domestic gas meter of the embodiment of the present invention is that combustion gas is entered by pipe
Inside gas meter, flow meter flowtube with V wimble structure, since V wimble structure can be such that the gas flowed through generates centainly in its front and back end
Pressure difference (introduces V cone principle of differential pressure) individually below, and the gas pressure for defining V cone front end is expressed as P1, and V bores the pressure representative of rear end
For P2, it there is two air inlets that pressure difference △ a P, P1 and P2 are separately connected MEMS differential pressure pickup 2 between such P1 and P2
Mouthful, the pressure difference △ P of formation is measured by MEMS differential pressure pickup 2, and is converted into corresponding voltage signal and is sent data acquisition to
Processing board 3, data acquisition process plate 3 is by collected voltage signal, by internal algorithm conversion (including temperature-compensating, pressure
Power calibrates scheduling algorithm) at corresponding flow value, finally flow is intuitively shown on integrated display screen 4, while data acquire
The functions such as data storage and wireless communication can be also set as needed in processing board 3, thereby realize MEMS differential pressure pickup
The function of 2V coning tower tray amount domestic gas meter acquisition gas flow.
V cone flow meter is a kind of novel differential pressure flowmeter, it generates throttle effect in flow field using V centrum to survey
Measure flow, can accurately measure the fluid of the various flow conditions in wide reynolds number range, with precision is high, measurement range is wide,
The advantages that antipollution, small crushing.
V cone flow meter principle is carried out according to the Bernoulli equation of the fluid energy conservation continuously flowed in closed conduct
Measurement, for perfect fluid, the flow velocity of medium and the square root of pressure difference are directly proportional.The throttling element of V cone flow meter is a suspension
The bullet entreated in the duct.High pressure P1 is derived from the tube wall that fluid before cone is undisturbed (i.e. not formed throttling, fluid do not accelerate)；
Low pressure P2 is derived from posterior pyramids center, and is led to outside pipe by inner cone support rod, and the square root of pressure difference △ P is directly proportional to flow.
Its flow rate calculation formula are as follows:
In formula: QmMass flow (kg/s)；
QvVolume flow (m3/s)
C- efflux coefficient；
ε-expansibility factor；
D- throttling element opening diameter, m；
β-diameter ratio, β=d/D, d are that V bores maximum cross-section diameter, and D is pipe interior diameter；
ρ1Detected fluid density, kg/m；
Δ p- pressure difference, Pa.
By the cooperative cooperating of above-mentioned each component part, the domestic gas meter of the embodiment of the present invention, have structure it is simple,
The low feature of install convenient, production cost, and improve the contamination resistance of gas meter, flow meter.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (10)
1. a kind of domestic gas meter characterized by comprising V coning tower tray buret (1), MEMS differential pressure pickup (2), data acquisition
Processing board (3) and integrated display screen (4), wherein
Combustion gas is transmitted to user terminal by the V coning tower tray buret (1)；
The MEMS differential pressure pickup (2) is fixed on the V coning tower tray buret (1), for detecting the V coning tower tray buret (1) two
The differential pressure signal at end, and the differential pressure signal is converted into voltage signal and is sent to the data acquisition process plate (3)；
The data acquisition process plate (3) receives the voltage signal, and the voltage signal is converted to flow information and is sent
It is shown to the integrated display screen (4).
2. domestic gas meter according to claim 1, which is characterized in that the MEMS differential pressure pickup (2) includes: first
Air inlet (21) and the second air inlet (22), wherein
First air inlet (21) is fixedly connected with the front end air entraining pipe (11) on the V coning tower tray buret (1), before detection is described
Hold the first pressure signal of gas in air entraining pipe (11)；
Second air inlet (22) is fixedly connected with the rear end air entraining pipe (12) on the V coning tower tray buret (1), after detection is described
Hold the second pressure signal of gas in air entraining pipe (12)；
The MEMS differential pressure pickup (2) obtains the pressure difference according to the first pressure signal and the second pressure signal
Signal.
3. domestic gas meter according to claim 2, which is characterized in that first air inlet (21) and described second into
Stomata (22) is fixedly connected with the front end air entraining pipe (11) and the rear end air entraining pipe (12) respectively by loose joint nut.
4. domestic gas meter according to claim 1, which is characterized in that the data acquisition process plate (3) includes: front end
Zeroing circuit (31), gain control circuit (32), filter circuit (33) and flow conversion circuit (34), wherein
The front end zeroing circuit (31) receives the voltage signal, carries out zeroing processing to the voltage signal, and will zeroing
Treated, and voltage signal is sent to gain control circuit (32)；
The gain control circuit (32) receives the zeroing treated voltage signal, and by the zeroing, treated that voltage is believed
Number gain amplification is carried out, generates amplification voltage signal, and the amplification voltage signal is sent to the filter circuit (33)；
The filter circuit (33) receives the amplification voltage signal, is filtered to the amplification voltage signal, generates
Standard voltage signal, and the standard voltage signal is sent to the flow conversion circuit (34)；
The flow conversion circuit (34) receives the standard voltage signal, and the standard voltage signal is converted to the flow
Information is sent to the integrated display screen (4) and is shown.
5. domestic gas meter according to claim 1, which is characterized in that further include:
Gas meter, flow meter cabinet (5), the gas meter, flow meter cabinet (5) are fixed on the V coning tower tray buret (1)；
The MEMS differential pressure pickup (2), data acquisition process plate (3) and integrated display screen (4) are set to the gas meter box
The inside of body (5).
6. domestic gas meter according to claim 5, which is characterized in that
The lower surface of the data acquisition process plate (3) is fixed on the fixed bolt in the gas meter, flow meter cabinet (5) by screw
(101) on,
The integrated display screen (4) is fixed on the fixed bolt of data acquisition process plate (3) the upper surface setting by screw
(101) on.
7. domestic gas meter according to claim 6, which is characterized in that further include:
Gas meter, flow meter case lid (6), the gas meter, flow meter case lid (6) are covered on the upper surface of the gas meter, flow meter cabinet (5)；
Display shield aperture is provided on the gas meter, flow meter case lid (6), the display shield aperture is corresponding with the integrated display screen (4) to be set
It sets.
8. domestic gas meter according to claim 7, which is characterized in that
Multiple push-button units are provided on the gas meter, flow meter case lid (6), the push-button unit is used to receive the key of the user
Information, and the key information is sent to the data acquisition process plate (3)；
The data acquisition process plate (3) handles the voltage signal according to the key information, generates processing information, and by institute
Processing information is stated to be sent to the integrated display screen (4) and shown.
9. domestic gas meter according to claim 7, which is characterized in that further include:
Power storehouse (7), the power storehouse (7) are set to the inside of the gas meter, flow meter cabinet (5), are the MEMS differential pressure pickup
(2), data acquisition process plate (3) and integrated display screen (4) are powered.
10. domestic gas meter according to claim 1, which is characterized in that the both ends of the V coning tower tray buret (1) and house lead in
Natural gas tube is connected by loose joint nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811428006.3A CN109696213A (en) | 2018-11-27 | 2018-11-27 | A kind of domestic gas meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811428006.3A CN109696213A (en) | 2018-11-27 | 2018-11-27 | A kind of domestic gas meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109696213A true CN109696213A (en) | 2019-04-30 |
Family
ID=66230227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811428006.3A Pending CN109696213A (en) | 2018-11-27 | 2018-11-27 | A kind of domestic gas meter |
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| CN (1) | CN109696213A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111811591A (en) * | 2020-08-11 | 2020-10-23 | 苏州昇萨特传感技术有限公司 | Flow stabilizing and pressure stabilizing signal acquisition structure of nozzle flow meter |
| CN111811590A (en) * | 2020-08-11 | 2020-10-23 | 苏州昇萨特传感技术有限公司 | Nozzle flow meter |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN111811591A (en) * | 2020-08-11 | 2020-10-23 | 苏州昇萨特传感技术有限公司 | Flow stabilizing and pressure stabilizing signal acquisition structure of nozzle flow meter |
| CN111811590A (en) * | 2020-08-11 | 2020-10-23 | 苏州昇萨特传感技术有限公司 | Nozzle flow meter |
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