CN105784015A - Gas turbine flowmeter - Google Patents
Gas turbine flowmeter Download PDFInfo
- Publication number
- CN105784015A CN105784015A CN201610145391.5A CN201610145391A CN105784015A CN 105784015 A CN105784015 A CN 105784015A CN 201610145391 A CN201610145391 A CN 201610145391A CN 105784015 A CN105784015 A CN 105784015A
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- CN
- China
- Prior art keywords
- gas turbine
- volume correction
- correction instrument
- meter according
- main shaft
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
Abstract
The invention provides a gas turbine flowmeter.A volume correction instrument is arranged on a shell, a high-pressure oil supply system is arranged in the shell, an electronic switch for recording the number of oiling times and oiling time is arranged at the high-pressure oil supply system, and is electrically connected with the volume correction instrument, and a comparing module and a reminding module are arranged in the volume correction instrument.The electronic switch provided at the high-pressure oil supply system is connected with the volume correction instrument, the volume correction instrument detects the electrical level state of the electronic switch to judge whether the flowmeter is oiled or not, and if no oiling action exists in preset time, outputting is carried out through a corresponding output interface to remind a user of maintaining and oiling.
Description
Technical field
The present invention relates to metering field, particularly relate to a kind of gas turbine meter.
Background technology
Gas turbine meter is speed mode instrument, and it has significantly high accuracy, repeatability, and simple in construction, range ratio width, crushing are little, antidetonation and anti-pulsating flow performance good, it is relatively convenient to keep in repair.Therefore the industries such as oil, chemical industry, metallurgy, electric power, Industrial Boiler, pipeline network of fuel gas in city it are widely used in.Especially measuring at gas, the metering of mesohigh transmission and distribution network and gas pressure regulating station are widely used in measuring；But while using widely, gas turbine meter is not in place because of user's periodic maintenance, often occur fuel feeding not in time, the pressurization problems such as pressure release speed is too fast, cause axle, bearing, impeller abrasion even stuck.
Summary of the invention
In order to overcome effusion meter user to turbine flowmeter periodic maintenance management deficiency, the invention provides a kind of gas turbine meter.
The present invention provides a kind of gas turbine meter, it includes housing, front baffle and rear baffle it is provided with in described housing, described front baffle and rear baffle constitute baffle, front, between rear baffle, turbine is set, described turbine is fixedly installed in housing by main shaft, and the cooperation that can rotate in a circumferential direction, before main shaft two ends are arranged on, on rear baffle, described housing is provided with volume correction instrument, it is provided with high-pressure fuel supply system in described housing, the electrical switch of record refueling times and refueling time it is arranged at described high-pressure fuel supply system place, described electrical switch electrically connects with volume correction instrument, the built-in comparison module of described volume correction instrument and prompting module, comparison module, it is connected with electrical switch, for the flow prestored total amount or time cycle and electrical switch detection refueling time are compared；Prompting module, is connected with comparison module, according to the result that comparison module draws, reminds user to carry out turbine flowmeter safeguarding oiling.
Two high frequency assemblies for gathering turbine rotating signal it are provided with in described housing, being successively set on turbine side, and described high frequency assembly electrically connects with volume correction instrument, described volume correction instrument includes judge module, the phase contrast of described judge module two high frequency assemblies of detection, it is judged that turbine rotating.
Described high frequency assembly is circumferentially provided on turbine side, and two high frequency assemblies arrange with the angle of 360 °/2N, and N is turbo blade number.
Described high-pressure fuel supply system includes high-pressure oil pump, double check valve, built-in oil pipe and movement embedded oil circuit.
The magneto-dependent sensor for detecting turbo blade pulse it is provided with in described housing.
Described volume correction instrument has wireless connections module.
It is provided with reducing gear and mechanical count character wheel in described housing, tongue tube is set at reducing gear place.
On described main shaft, the side between forward and backward baffle is provided with groove, inlays and arrange sender set magnet in described groove.
Described main shaft is arranged with two grooves.
Described main shaft material is the metal material except paramagnetic material.
Invent and provide at high-pressure fuel supply system place a kind of electrical switch to be connected with volume correction instrument, the level state of volume correction instrument detection electrical switch, to judge whether effusion meter refuels, if not oiling behavior within the preset time, then user will be reminded to carry out safeguarding oiling by the output of corresponding output interface.
Accompanying drawing explanation
Fig. 1 is the contour structures schematic diagram of the present invention.
Fig. 2 is the schematic internal view of the present invention.
Fig. 3 is the enlarged diagram at A place in Fig. 2.
Fig. 4 is the rough schematic in housing.
Fig. 5 is the structural representation of main shaft.
Fig. 6 is the scheme of installation of two high frequency assemblies.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the present invention is further illustrated:
Such as Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4 and Fig. 5, the present invention provides a kind of gas turbine meter, it includes gas flowmeter body and volume correction instrument 1, described gas flowmeter body includes housing 2, front baffle 4 and rear baffle 5 it is provided with in housing 2, both merge composition baffle, turbine 6 is set between front baffle and rear baffle, turbine 6 is set in outside main shaft, and the cooperation that can rotate in a circumferential direction, described main shaft 7 is linked with reducing gear and mechanical count character wheel 12, and precision bearing 10 is set in the junction of main shaft 7 with turbine 6, in the position being connected with precision bearing 10, high-pressure fuel supply system 11 is set, described high-pressure fuel supply system 11 includes high-pressure oil pump, double check valve, built-in oil pipe and movement embedded oil circuit.nullHousing arranges volume correction instrument，As secondary meter，The electrical switch of record refueling times and refueling time it is arranged at described high-pressure fuel supply system place，Described electrical switch electrically connects with volume correction instrument，Described electrical switch is arranged on high-pressure oil pump place，Described electrical switch can send level signal when refueling every time，As refueling times record，And by detecting the interval between two adjacent level signals，Can as the record of refueling time，By the setting of electrical switch，To realize the detection to refueling times and refueling time，Then by the data of refueling time are sent to volume correction instrument，The built-in comparison module of described volume correction instrument and prompting module，Utilize its comparison module，It is connected with electrical switch，For the flow prestored total amount or time cycle and electrical switch detection refueling time are compared，When reaching cycle regular hour or flow total amount，Then pass through prompting module，User is reminded to carry out turbine flowmeter safeguarding oiling，Realize from maintenance function.
Gas turbine meter in use, there is also reverse air inlet phenomenon, and it exists many hidden danger: one forward and reverse measuring accuracy difference is very big；Its two reverse installation can make machinery display one count fall back.Market there will be often and because installing reverse, Trade Measures dispute occurs so that trade settlement both sides sustain a loss.And whether existing turbine flowmeter reverses for turbine, whether intact all without self diagnostic capability.If reversely install, adopting the band patent No. is that CN201420094419.3 " two-way count up effusion meter " function turbine flowmeter also can only evade counting setback, will not inform the anti-loaded situation of gas company's effusion meter and adopt remedial measures in time.
nullIn order to solve turbine rotating detection，Described gas flowmeter is originally internal is provided with two high frequency assemblies 3 for gathering turbine rotating signal，It is successively set on turbine side，Described high frequency assembly is circumferentially provided on turbine side，Two high frequency assemblies arrange with the angle of 360 °/2N，N is turbo blade number，As shown in Figure 6，With horizontal level for benchmark，Because second high frequency assembly is not at the centre of two panels impeller blade in structural design，The pulse of two high frequency assembly collections is carried out logical judgment，Judge the rotating of turbine，And described high frequency assembly electrically connects with volume correction instrument，Described volume correction instrument 1 possesses reception、Process and two high frequency assemblies 3 of calculating and magneto-dependent sensor 9 export the ability of signal，Described volume correction instrument 1 includes judge module，The phase contrast of described judge module two high frequency assemblies of detection，Judge turbine rotating.In Fig. 6, β: impeller lead angle, θ: rotating error angle, C: sensor instrument distance.
Described two high frequency assemblies 3 gather turbine rotating signal simultaneously, and the signal of two high frequency assembly 3 dislocation collections makes it there is phase contrast, the differentiation of phase contrast is carried out by judge module, and judge turbine rotating with this, and described volume correction instrument has wireless connections module, can also be cable network link block, it is possible to directly communicate to connect with gas company's service end, therefore the data that volume correction instrument obtains far can be gone to gas company's service end.
Owing to the pipeline gas cleanliness factor of turbine flowmeter scene application is poor, there is larger particles, or during first installation effusion meter, pipeline is not cleaned up in time, and the phenomenon causing turbine flowmeter turbo blade often to be broken, cause effusion meter to be chronically at abnormal operating state, this not only have impact on the service life of effusion meter, also result in Trade Measures inaccurate, the problem causing trade dispute.
Therefore it is provided with magneto-dependent sensor at housing near major axes orientation, the corresponding sender set 8 of this magneto-dependent sensor 9 is then embedded on main shaft, for sending the data of magneto-dependent sensor detection, owing to high frequency assembly relation proportional to the output of pulse signal of magneto-dependent sensor is constant constant, this constant constant is relevant to the magnetic pole logarithm of turbo blade number Yu sender set, therefore volume correction instrument can either directly through real-time reception and the pulse signal processing magneto-dependent sensor output, and the change of the pulse signal according to magneto-dependent sensor output, whether the constant constant judged between the signal of high frequency assembly output exists saltus step, by detecting whether there is saltus step, carry out judging that whether the blade of turbine is intact.
Main shaft 7 two ends are arranged on forward and backward baffle, and on described main shaft, the side between forward and backward baffle is provided with groove 15, inlays and arrange sender set magnet 8 in described groove 15.Directly the mode inlayed is adopted to be fixed in the groove of main shaft sender set magnet, compared with sender set being fixed on main shaft end in the past, it will not produce bigger centrifugal force under high speed rotating, and decrease centrifugal force, then will not make main shaft generation slight deformation, so that resistance suffered by bearing increases the measuring accuracy affecting turbine flowmeter.And adopt main shaft and sender set magnet integrative-structure, then ensure that main shaft bulk flow line style, greatly reduce the impulsive force suffered by main shaft.
Described main shaft is arranged with two grooves 15, namely one or more sender set magnet 8 can be set according to demand.
Described main shaft material is the metal material except paramagnetic material.The definition of described paramagnetic material: have the molecule of unpaired electron, must arrange along magnetic direction in externally-applied magnetic field, and this character of molecule is paramagnetism, and the material with this character claims paramagnet.
Described gas flowmeter is originally internal is provided with reducing gear and mechanical count character wheel, at reducing gear place, tongue tube 14 is set, described tongue tube 14 is connected with low frequency sender set 13, described tongue tube is for whether the gear ratio and the instrument coefficient preset judging middle several groups of gear trains exists gear ratio multiple proportion, namely whether the gear ratio of reducing gear mates with the constant constant of described high frequency assembly or described magneto-dependent sensor, also is able to carry out data calculating by gauge outfit and show instantaneous volume flow rate simultaneously.
Embodiment is not construed as limitation of the present invention, but any spiritual improvements introduced based on the present invention, all should within protection scope of the present invention.
Claims (10)
1. a gas turbine meter, it includes housing, front baffle and rear baffle it is provided with in described housing, described front baffle and rear baffle constitute baffle, front, between rear baffle, turbine is set, described turbine is fixedly installed in housing by main shaft, and the cooperation that can rotate in a circumferential direction, before main shaft two ends are arranged on, on rear baffle, it is characterized in that: described housing is provided with volume correction instrument, it is provided with high-pressure fuel supply system in described housing, the electrical switch of record refueling times and refueling time it is arranged at described high-pressure fuel supply system place, described electrical switch electrically connects with volume correction instrument, the built-in comparison module of described volume correction instrument and prompting module, comparison module, it is connected with electrical switch, for the flow prestored total amount or time cycle and electrical switch detection refueling time are compared；Prompting module, is connected with comparison module, according to the result that comparison module draws, reminds user to carry out turbine flowmeter safeguarding oiling.
2. a kind of gas turbine meter according to claim 1, it is characterized in that: in described housing, be provided with two high frequency assemblies for gathering turbine rotating signal, it is successively set on turbine side, and described high frequency assembly electrically connects with volume correction instrument, described volume correction instrument includes judge module, the phase contrast of described judge module two high frequency assemblies of detection, it is judged that turbine rotating.
3. a kind of gas turbine meter according to claim 2, it is characterised in that: described high frequency assembly is circumferentially provided on turbine side, and two high frequency assemblies arrange with the angle of 360 °/2N, and N is turbo blade number.
4. a kind of gas turbine meter according to claim 1 and 2, it is characterised in that: described high-pressure fuel supply system includes high-pressure oil pump, double check valve, built-in oil pipe and movement embedded oil circuit.
5. a kind of gas turbine meter according to claim 1, it is characterised in that: it is provided with the magneto-dependent sensor for detecting turbo blade pulse in described housing.
6. a kind of gas turbine meter according to claim 1, it is characterised in that: described volume correction instrument has wireless connections module.
7. a kind of gas turbine meter according to claim 1, it is characterised in that: it is provided with reducing gear and mechanical count character wheel in described housing, tongue tube is set at reducing gear place.
8. a kind of gas turbine meter according to claim 1, it is characterised in that: on described main shaft, the side between forward and backward baffle is provided with groove, inlays and arrange sender set magnet in described groove.
9. a kind of gas turbine meter according to claim 8, it is characterised in that: described main shaft is arranged with two grooves.
10. a kind of gas turbine meter according to claim 8, it is characterised in that: described main shaft material is the metal material except paramagnetic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610145391.5A CN105784015A (en) | 2016-03-15 | 2016-03-15 | Gas turbine flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610145391.5A CN105784015A (en) | 2016-03-15 | 2016-03-15 | Gas turbine flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105784015A true CN105784015A (en) | 2016-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610145391.5A Pending CN105784015A (en) | 2016-03-15 | 2016-03-15 | Gas turbine flowmeter |
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| Country | Link |
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| CN (1) | CN105784015A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108844602A (en) * | 2018-06-22 | 2018-11-20 | 天信仪表集团有限公司 | A kind of self diagnosis of the direct-reading mechanical counter of tape pulse input and bearing calibration |
| CN109556670A (en) * | 2018-11-21 | 2019-04-02 | 中国航发西安动力控制科技有限公司 | A kind of high-precision flow metrological service |
| CN111238579A (en) * | 2020-03-27 | 2020-06-05 | 四川泛华航空仪表电器有限公司 | Flow sensor with adjustable K coefficient |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5866824A (en) * | 1997-01-24 | 1999-02-02 | American Meter Company | Gas turbine meter |
| CN200989800Y (en) * | 2006-07-28 | 2007-12-12 | 浙江天信仪表有限公司 | Nonmagnetic detecting gas turbine flowmeter |
| CN101571415A (en) * | 2009-04-23 | 2009-11-04 | 吕德月 | Device for automatically reminding adding oil for lubrication and recording times of adding oil and method |
| CN201408043Y (en) * | 2009-04-23 | 2010-02-17 | 宁波创盛仪表有限公司 | Device for automatically reminding lubrication and recording refueling times |
| CN201531264U (en) * | 2009-11-25 | 2010-07-21 | 西安威盛电子仪器有限公司 | Novel turbine flow transducer |
| CN202660207U (en) * | 2012-06-15 | 2013-01-09 | 深圳普鲁士特空压系统有限公司 | Automatic lubricating device |
| CN103822670A (en) * | 2013-12-02 | 2014-05-28 | 天津斯秘特精密仪表股份有限公司 | Novel gas turbine flow meter |
| CN203745008U (en) * | 2014-03-04 | 2014-07-30 | 天信仪表集团有限公司 | Two-way count increment flowmeter |
-
2016
- 2016-03-15 CN CN201610145391.5A patent/CN105784015A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5866824A (en) * | 1997-01-24 | 1999-02-02 | American Meter Company | Gas turbine meter |
| CN200989800Y (en) * | 2006-07-28 | 2007-12-12 | 浙江天信仪表有限公司 | Nonmagnetic detecting gas turbine flowmeter |
| CN101571415A (en) * | 2009-04-23 | 2009-11-04 | 吕德月 | Device for automatically reminding adding oil for lubrication and recording times of adding oil and method |
| CN201408043Y (en) * | 2009-04-23 | 2010-02-17 | 宁波创盛仪表有限公司 | Device for automatically reminding lubrication and recording refueling times |
| CN201531264U (en) * | 2009-11-25 | 2010-07-21 | 西安威盛电子仪器有限公司 | Novel turbine flow transducer |
| CN202660207U (en) * | 2012-06-15 | 2013-01-09 | 深圳普鲁士特空压系统有限公司 | Automatic lubricating device |
| CN103822670A (en) * | 2013-12-02 | 2014-05-28 | 天津斯秘特精密仪表股份有限公司 | Novel gas turbine flow meter |
| CN203745008U (en) * | 2014-03-04 | 2014-07-30 | 天信仪表集团有限公司 | Two-way count increment flowmeter |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108844602A (en) * | 2018-06-22 | 2018-11-20 | 天信仪表集团有限公司 | A kind of self diagnosis of the direct-reading mechanical counter of tape pulse input and bearing calibration |
| CN108844602B (en) * | 2018-06-22 | 2020-01-10 | 天信仪表集团有限公司 | Self-diagnosis and correction method of direct-reading mechanical counter with pulse input |
| CN109556670A (en) * | 2018-11-21 | 2019-04-02 | 中国航发西安动力控制科技有限公司 | A kind of high-precision flow metrological service |
| CN111238579A (en) * | 2020-03-27 | 2020-06-05 | 四川泛华航空仪表电器有限公司 | Flow sensor with adjustable K coefficient |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160720 |
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| RJ01 | Rejection of invention patent application after publication |