CN206848761U - The flow measuring and controlling instrument and its operating circuit that movement is removably demarcated - Google Patents
The flow measuring and controlling instrument and its operating circuit that movement is removably demarcated Download PDFInfo
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- CN206848761U CN206848761U CN201720698193.1U CN201720698193U CN206848761U CN 206848761 U CN206848761 U CN 206848761U CN 201720698193 U CN201720698193 U CN 201720698193U CN 206848761 U CN206848761 U CN 206848761U
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- flow
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Abstract
It the utility model is related to flow measuring and controlling instrument and its operating circuit that a kind of movement is removably demarcated, it is characterised in that：Including flow-metering mechanism, regulating valve, actuator and housing, flow-metering mechanism includes electronic installation and flow sensor, electronic installation is connected with flow sensor, electronic installation is connected with electrode and flowtube, flowtube is connected with actuator, and electrode is connected with regulating valve, and regulating valve is set in the housing, and regulating valve is connected with flow-metering mechanism, regulating valve is connected with actuator；Regulating valve includes valve element, and valve element includes plug, valve rod and valve block, and valve rod is plugged on the center of plug, and valve block is arranged on the bottom of plug, and valve rod is connected with actuator；Flow sensor includes cylinder, cage and guide shell, and cage is arranged on the upper outside of cylinder.
Description
Technical field
It the utility model is related to flow measuring and controlling instrument and its operating circuit that a kind of movement is removably demarcated.
Background technology
Existing flow measuring and controlling instrument is divided into straight flow measuring and controlling instrument and angie type flow measuring and controlling instrument, no matter any flow measuring and controlling instrument
Its watch core is with the structure that housing is integral type, although integral structure precision is higher, maintenance is quite not easy, while interior
Portion easily produces the problems such as dust stratification, has a strong impact on service life, produces quite huge maintenance and selling cost.
Utility model content
The purpose of this utility model is to overcome above shortcomings in the prior art, and provides a kind of structure design and close
Reason, can dismantle, be capable of flow measuring and controlling instrument and its operating circuit that the movement of multi-range measurement is removably demarcated.
The technical scheme in the invention for solving the above technical problem is：The flow measuring and controlling that a kind of movement is removably demarcated
Instrument, it is characterised in that：Including flow-metering mechanism, regulating valve, actuator and housing, flow-metering mechanism include electronic installation and
Flow sensor, electronic installation are connected with flow sensor, and electronic installation is connected with electrode and flowtube, flowtube and actuator
Be connected, electrode is connected with regulating valve, and regulating valve is set in the housing, and regulating valve is connected with flow-metering mechanism, regulating valve and
Actuator is connected；Regulating valve includes valve element, and valve element includes plug, valve rod and valve block, and valve rod is plugged on the center of plug, valve block peace
Mounted in the bottom of plug, valve rod is connected with actuator；Flow sensor includes cylinder, cage and guide shell, and cage is arranged on cylinder
The junction of the upper outside of body, cage and cylinder is provided with O-ring, and guide shell is arranged in the bottom of cylinder, cylinder it is upper
Portion is connected with electronic installation, and electrode is arranged in the top of cylinder, and electrode is connected with guide shell, and the bottom of cylinder is plugged on shell
In vivo, the bottom of cylinder and the junction of housing are provided with the flat pad of sealing, and the top of cylinder is provided with magnetic steel component, magnetic steel component
It is connected with guide shell；Pressure relief opening is provided with housing, pressure release screw socket is provided with pressure relief opening.Flow-metering mechanism is also " watch core
Son ", " watch core " is designed and manufactured into a relatively independent global facility, can easily be torn open from the housing upper face of measurement and control instrument
Unload out or install, " plug-in type " structure type of this innovation can be maintained easily greatly to be examined with the error of indication cycle
It is fixed.When user periodically carries out error of indication periodic calibration to measurement and control instrument, only need " watch core " taking apart censorship can,
Whole measurement and control instrument need not be disassembled from pipeline (because it is very hard work to dismantle whole measurement and control instrument from pipeline, and
Measurement and control instrument resets the poorly sealed and seepage easily caused with pipeline connection on pipeline).If user has standby " table
Fuse ", standby watch core is changed, does not influence water filling when doing periodic calibration also and continues to measure.In measurement and control instrument
On housing, " watch core " of multiple different measurement ranges can be changed, so as to significantly widen the measurement range of measurement and control instrument,
The benefit of this " a table multicore " is：Oil field different blocks can be met, the water injection well of different times matches somebody with somebody fluence difference or adjustment
Needs.Such as the measurement and control instrument of DN25 bores, the measurement range point of its " watch core " has：0.1-2m3/h、0.2-4m3/h、0.3-
6m3/h、0.5-10m3Tetra- kinds of specifications of/h, and watch core of all size is under unified central planning general in 0-42MPa pressure limit.
Valve block described in the utility model includes moving valve plate and quiet valve block, and moving valve plate is arranged on the lower section of valve rod, moving valve plate
Turn hole is provided centrally with, turn hole is connected with valve rod, and quiet valve block is cylinder, and moving valve plate includes upper plane and lower plane, upper plane
Parallel with the bottom surface of quiet valve block with lower plane, moving valve plate is bonded with quiet valve block, and moving valve plate is connected to quiet by valve rod rotary type
On valve block.
Quiet valve block described in the utility model includes quiet valve block lower left quarter, quiet valve block upper left quarter, quiet valve block upper right quarter and quiet valve
Piece right lower quadrant, quiet valve block lower left quarter, quiet valve block upper left quarter, quiet valve block upper right quarter and the mutual shape phase of quiet valve block right lower quadrant
Together, valve opening, valve opening insertion are provided with quiet valve block lower left quarter, quiet valve block upper left quarter, quiet valve block upper right quarter or quiet valve block right lower quadrant
Quiet valve block；Turn hole is located at the center of quiet valve block, and the border of moving valve plate coats the border of valve opening completely.
Moving valve plate described in the utility model includes moving valve plate top and moving valve plate bottom, moving valve plate top and moving valve plate bottom
For integral type structure, moving valve plate top is arranged on the top of turn hole, and moving valve plate bottom is arranged on the lower section of turn hole；Moving valve plate top
Border coat the border of valve opening, the border of quiet valve block lower left quarter, the border of quiet valve block upper left quarter, quiet valve block upper right quarter completely
Border or the border of quiet valve block right lower quadrant coat the border on moving valve plate top completely；Wrap completely on the border of moving valve plate bottom
Cover the border of valve opening, the border of quiet valve block lower left quarter, the border of quiet valve block upper left quarter, the border of quiet valve block upper right quarter or quiet valve block
The border of right lower quadrant coats the border of moving valve plate bottom completely.
Valve element described in the utility model also include valve rod rubber seal, plug rubber seal, wear-resistant pad, cushion and
Straight pin, valve rod rubber seal are arranged between valve rod and plug, and plug rubber seal is arranged between plug and housing,
Wear-resistant pad is arranged on the bottom of valve rod, and wear-resistant pad is arranged between valve rod and plug, and cushion is arranged on valve rod and moving valve plate
Between, moving valve plate is connected by straight pin with valve rod.
A kind of operating circuit for the flow measuring and controlling instrument that movement is removably demarcated, it is characterised in that：Become including single-chip microcomputer, flow
Parallel operation, regulating valve, mechanical variable speed device, master control borad, relay, motor, limiter, change electrical equipment and power supply, flow converter
It is connected with single-chip microcomputer, flow converter is connected with regulating valve, and mechanical variable speed device is connected with regulating valve, motor and mechanical speed change
Mechanism is connected, and relay is connected with motor, and master control borad is connected with relay, and single-chip microcomputer is connected with master control borad, limiter and electricity
Motivation is connected, and power supply is connected with relay, and power supply is connected with becoming electrical equipment, becomes electrical equipment and is connected with master control borad.
The operating circuit for the flow measuring and controlling instrument that movement described in the utility model is removably demarcated also includes shaping circuit and put
Big circuit, flow converter are connected with shaping circuit, and shaping circuit is connected with amplifying circuit, and amplifying circuit is connected with single-chip microcomputer.
Single-chip microcomputer described in the utility model is connected with LCD display.
Mechanical variable speed device described in the utility model is connected with hand crank.
Single-chip microcomputer described in the utility model is connected with daily flow button.
Compared with prior art, the flow-metering mechanism on the utility model measurement and control instrument, regulating valve, actuator and housing all may be used
Easily disassembled with overall, this, which usually overhauls to user, safeguards, changes the work such as consumable accessory brings direct convenience.It is special
It is not the sealing pair on Flow-rate adjustment valve core, Replacement and Repair can be obtained in time after long-time is using abrasion, extends production
The service life of product.
Brief description of the drawings
Fig. 1 is the main structure diagram of the utility model embodiment.
Fig. 2 is Fig. 1 configuration schematic diagram.
Fig. 3 is the utility model embodiment valve element main view cross-sectional view.
Fig. 4 is the flow sensor main structure diagram of the utility model embodiment.
Fig. 5 is the operating circuit structural representation of the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawings and the utility model is described in further detail by embodiment, and following examples are pair
It is of the present utility model explanation and the utility model is not limited to following examples.
Embodiment.
Referring to Fig. 1 to Fig. 3.
The present embodiment is a kind of flow measuring and controlling instrument removably demarcated of movement, including flow-metering mechanism, regulating valve 22, is held
Row device 12 and housing 7.
Flow-metering mechanism includes electronic installation 1 and flow sensor 4, and electronic installation 1 is connected with flow sensor 4, electricity
Sub-device 1 is connected with electrode and flowtube 13, and flowtube 13 is connected with actuator 12, and electrode is connected with regulating valve 22, regulating valve
22 are arranged in housing 7, and regulating valve 22 is connected with flow-metering mechanism, and regulating valve 22 is connected with actuator 12.
Regulating valve 22 includes valve element 3, and valve element 3 includes plug 10, valve rod 9 and valve block, and valve rod 9 is plugged in plug 10
The heart, valve block are arranged on the bottom of plug 10, and valve rod 9 is connected with actuator 12.
Flow sensor 4 includes cylinder 36, cage 37 and guide shell 39, and cage 37 is arranged on the upper outside of cylinder 36,
The junction of cage 37 and cylinder 36 is provided with O-ring 38, and guide shell 39 is arranged in the bottom of cylinder 36, the top of cylinder 36
It is connected with electronic installation 1, electrode is arranged in the top of cylinder 36, and electrode is connected with guide shell 39, and the bottom of cylinder 36 is inserted
It is connected in housing 7, the bottom of cylinder 36 is provided with the flat pad of sealing with the junction of housing 7, and the top of cylinder 36 is provided with magnet steel
Component 40, magnetic steel component 40 are connected with guide shell 39.The junction of cylinder 36 and housing 7 sets nut 5 to be fixed.
Pressure relief opening is provided with housing 7, pressure release screw socket 6 is provided with pressure relief opening.The lower section of housing 7 is provided with base 8.Stream
Measure measuring mechanism and be also " watch core ", " watch core " is designed and manufactured into a relatively independent global facility, can be from observing and controlling
The housing 7 of instrument easily takes apart or installed above, and " plug-in type " structure type of this innovation can be greatly local
Just safeguard and error of indication periodic calibration.When user periodically carries out error of indication periodic calibration to measurement and control instrument, only need " watch core
Son " takes apart censorship can, without disassembling whole measurement and control instrument from pipeline (because dismantling whole survey from pipeline
Control instrument is very hard work, and measurement and control instrument reset on pipeline easily cause with the poorly sealed of pipeline connection and ooze
Leakage).If user has standby " watch core ", standby watch core is changed, does not influence water filling also when doing periodic calibration
Continue to measure.On the housing 7 of a measurement and control instrument, " watch core " of multiple different measurement ranges can be changed, so as to significantly
The measurement range of measurement and control instrument has been widened on ground, and the benefit of this " a table multicore " is：Oil field different blocks, different times can be met
Needs of the water injection well with fluence difference or adjustment.Such as the measurement and control instrument of DN25 bores, the measurement range point of its " watch core " has：
0.1-2m3/h、0.2-4m3/h、0.3-6m3/h、0.5-10m3Tetra- kinds of specifications of/h, and it is various in 0-42MPa pressure limit
Watch core of specification is under unified central planning general.
Preferably, the present embodiment middle valve plate includes moving valve plate 11 and quiet valve block 41, moving valve plate 11 is arranged under valve rod 9
Side, moving valve plate 11 are provided centrally with turn hole, and turn hole is connected with valve rod 9, and quiet valve block 41 is cylinder, and moving valve plate 11 includes upper flat
Face and lower plane, upper plane and lower plane are parallel with the bottom surface of quiet valve block 41, and moving valve plate 11 is bonded with quiet valve block 41, moving valve plate
11 are connected on quiet valve block 41 by the rotary type of valve rod 9.
Preferably, quiet valve block 41 includes quiet valve block lower left quarter, quiet valve block upper left quarter, quiet valve block upper right quarter and the quiet valve block right side
Bottom, quiet valve block lower left quarter, quiet valve block upper left quarter, quiet valve block upper right quarter are identical with the quiet mutual shape of valve block right lower quadrant, quiet
Valve opening is provided with valve block lower left quarter, quiet valve block upper left quarter, quiet valve block upper right quarter or quiet valve block right lower quadrant, valve opening penetrates quiet valve block
41；Turn hole is located at the center of quiet valve block 41, and the border of moving valve plate 11 coats the border of valve opening completely.Rotated by quiet valve block 12,
Valve opening is controlled to be used for the area of circulating liquid, so as to control flow.
Moving valve plate 11 includes moving valve plate top and moving valve plate bottom, and moving valve plate top and moving valve plate bottom are integral type knot
Structure, moving valve plate top are arranged on the top of turn hole, and moving valve plate bottom is arranged on the lower section of turn hole；The border on moving valve plate top is complete
The border of full cladding valve opening, the border of quiet valve block lower left quarter, the border of quiet valve block upper left quarter, the border or quiet of quiet valve block upper right quarter
The border of valve block right lower quadrant coats the border on moving valve plate top completely；The border of moving valve plate bottom coats the side of valve opening completely
Boundary, the border of quiet valve block lower left quarter, the border of quiet valve block upper left quarter, the side of the border of quiet valve block upper right quarter or quiet valve block right lower quadrant
Boundary coats the border of moving valve plate bottom completely.
Preferably, valve element 3 also includes valve rod rubber seal 14, plug rubber seal 15, wear-resistant pad 16, cushion
17 and straight pin 18, valve rod rubber seal 14 be arranged between valve rod 9 and plug 10, plug rubber seal 15 is arranged on stifled
Between first 10 and housing 7, wear-resistant pad 16 is arranged on the bottom of valve rod 9, and wear-resistant pad 16 is arranged between valve rod 9 and plug 10,
Cushion 17 is arranged between valve rod 9 and moving valve plate 11, and moving valve plate 11 is connected by straight pin 18 with valve rod 9.
The present embodiment also includes the operating circuit for the flow measuring and controlling instrument that movement is removably demarcated, including single-chip microcomputer 23, flow
Converter 19, regulating valve 22, mechanical variable speed device 24, master control borad 25, relay 26, motor 27, limiter 28, change electrical equipment 29
With power supply 30.
Flow converter 19 is connected with single-chip microcomputer 23.Preferably, flow converter 19 is connected with shaping circuit 20, shaping
Circuit 20 is connected with amplifying circuit 21, and amplifying circuit 21 is connected with single-chip microcomputer 23.
Flow converter 19 is connected with regulating valve 22, and mechanical variable speed device 24 is connected with regulating valve 22, motor 27 and machine
Tool gear 24 is connected, and relay 26 is connected with motor 27, and master control borad 25 is connected with relay 26, single-chip microcomputer 23 and master control
Plate 25 is connected, and limiter 28 is connected with motor 27, and power supply 30 is connected with relay 26, and power supply 30 is connected with becoming electrical equipment 29, becomes
Electrical equipment 29 is connected with master control borad 25.
Preferably, the present embodiment single-chip microcomputer 23 is connected with LCD display 2.
Preferably, the present embodiment mechanical variable speed device 24 is connected with hand crank 31.
Preferably, the present embodiment single-chip microcomputer 23 is connected with daily flow button 32.
Preferably, the present embodiment motor 27 is provided with overheat overload protecting circuit 33.
Preferably, the present embodiment relay 26 is provided with switch valve member 34.
Preferably, the present embodiment single-chip microcomputer 23 and master control borad 25 are connected to a common flow set button 35.
After measured medium flow enters measurement and control instrument, first pass through flow control valve 22 again after the measurement of flow sensor 4.Stream
Quantity sensor 4 is that the measuring principle being combined according to magnetoelectric induction (permanent magnet is with electrode) and toll bar vortex manufactures and designs,
I.e. caused vortex frequency is proportional to flow.Fluid media (medium) is converted into by flow sensor 4 by the volume flow of runner
Flow electric signal, and be sent on the circuit of electronic installation 1.Single-chip microcomputer 23 is set on the circuit of electronic installation 1 and be composed of the time,
Date program, the processing such as computing, storage of data can be carried out, various measured values are finally shown by LCD display 2.
Furthermore, it is necessary to illustrate, the specific embodiment described in this specification, the shape of its parts and components, it is named
Title etc. can be different, and the above content described in this specification is only to the utility model structure example explanation.
The equivalence changes or simple change that all construction, feature and the principle described according to the utility model patent design are done, are wrapped
Include in the protection domain of the utility model patent.The utility model person of ordinary skill in the field can be to described
Specific embodiment is made various modifications or supplement or substituted using similar mode, without departing from knot of the present utility model
Structure surmounts scope defined in the claims, all should belong to the scope of protection of the utility model.
Claims (10)
- A kind of 1. flow measuring and controlling instrument that movement is removably demarcated, it is characterised in that：Including flow-metering mechanism, regulating valve, execution Device and housing, flow-metering mechanism include electronic installation and flow sensor, and electronic installation is connected with flow sensor, electronics dress To put and be connected with electrode and flowtube, flowtube is connected with actuator, and electrode is connected with regulating valve, and regulating valve is set in the housing, And regulating valve is connected with flow-metering mechanism, regulating valve is connected with actuator；Regulating valve includes valve element, and valve element includes plug, valve Bar and valve block, valve rod are plugged on the center of plug, and valve block is arranged on the bottom of plug, and valve rod is connected with actuator；Flow sensing Device includes cylinder, cage and guide shell, and cage is arranged on the upper outside of cylinder, and the junction of cage and cylinder is provided with O-shaped Circle, guide shell are arranged in the bottom of cylinder, and the top of cylinder is connected with electronic installation, and electrode is arranged in the top of cylinder, And electrode is connected with guide shell, the bottom of cylinder is plugged in housing, and the bottom of cylinder and the junction of housing are provided with sealing Flat pad, the top of cylinder are provided with magnetic steel component, and magnetic steel component is connected with guide shell；Pressure relief opening, pressure relief opening are provided with housing On be provided with pressure release screw socket.
- 2. the flow measuring and controlling instrument that a kind of movement according to claim 1 is removably demarcated, it is characterised in that：The valve block bag Moving valve plate and quiet valve block are included, moving valve plate is arranged on the lower section of valve rod, and moving valve plate is provided centrally with turn hole, turn hole and valve rod phase Even, quiet valve block is cylinder, and moving valve plate includes upper plane and lower plane, and the bottom surface of upper plane and lower plane with quiet valve block is put down OK, moving valve plate is bonded with quiet valve block, and moving valve plate is connected on quiet valve block by valve rod rotary type.
- 3. the flow measuring and controlling instrument that a kind of movement according to claim 2 is removably demarcated, it is characterised in that：The quiet valve block Including quiet valve block lower left quarter, quiet valve block upper left quarter, quiet valve block upper right quarter and quiet valve block right lower quadrant, quiet valve block lower left quarter, quiet valve block Upper left quarter, quiet valve block upper right quarter are identical with the quiet mutual shape of valve block right lower quadrant, quiet valve block lower left quarter, quiet valve block upper left quarter, Valve opening is provided with quiet valve block upper right quarter or quiet valve block right lower quadrant, valve opening penetrates quiet valve block；Turn hole is located at the center of quiet valve block, moves The border of valve block coats the border of valve opening completely.
- 4. the flow measuring and controlling instrument that a kind of movement according to claim 3 is removably demarcated, it is characterised in that：The moving valve plate Including moving valve plate top and moving valve plate bottom, moving valve plate top and moving valve plate bottom are integral type structure, and moving valve plate top is installed In the top of turn hole, moving valve plate bottom is arranged on the lower section of turn hole；The border on moving valve plate top coats the border of valve opening completely, quiet The border of valve block lower left quarter, the border of quiet valve block upper left quarter, the border of the border of quiet valve block upper right quarter or quiet valve block right lower quadrant are complete The border on full cladding moving valve plate top；The border of moving valve plate bottom coats the border of valve opening completely, the border of quiet valve block lower left quarter, The border on the border of quiet valve block upper left quarter, the border of quiet valve block upper right quarter or quiet valve block right lower quadrant coats moving valve plate bottom completely Border.
- 5. the flow measuring and controlling instrument that a kind of movement according to Claims 2 or 3 or 4 is removably demarcated, it is characterised in that：It is described Valve element also includes valve rod rubber seal, plug rubber seal, wear-resistant pad, cushion and straight pin, valve rod rubber seal It is arranged between valve rod and plug, plug rubber seal is arranged between plug and housing, and wear-resistant pad is arranged on the bottom of valve rod End, and wear-resistant pad is arranged between valve rod and plug, cushion is arranged between valve rod and moving valve plate, and moving valve plate passes through straight pin It is connected with valve rod.
- 6. a kind of operating circuit for the flow measuring and controlling instrument that movement as described in claim 1-5 any claims is removably demarcated, It is characterized in that：Including single-chip microcomputer, flow converter, mechanical variable speed device, master control borad, relay, motor, limiter, change Electrical equipment and power supply, flow converter are connected with single-chip microcomputer, and flow converter is connected with regulating valve, mechanical variable speed device and regulating valve Be connected, motor is connected with mechanical variable speed device, and relay is connected with motor, and master control borad is connected with relay, single-chip microcomputer and Master control borad is connected, and limiter is connected with motor, and power supply is connected with relay, and power supply is connected with becoming electrical equipment, becomes electrical equipment and master control Plate is connected.
- 7. the operating circuit for the flow measuring and controlling instrument that movement is removably demarcated according to claim 6, it is characterised in that：The machine The operating circuit for the flow measuring and controlling instrument that core is removably demarcated also includes shaping circuit and amplifying circuit, flow converter and shaping electricity Road is connected, and shaping circuit is connected with amplifying circuit, and amplifying circuit is connected with single-chip microcomputer.
- 8. the operating circuit for the flow measuring and controlling instrument that movement is removably demarcated according to claim 7, it is characterised in that：The list Piece machine is connected with LCD display.
- 9. the operating circuit for the flow measuring and controlling instrument removably demarcated according to the movement of claim 7 or 8, it is characterised in that：Institute State mechanical variable speed device and be connected with hand crank.
- 10. the operating circuit for the flow measuring and controlling instrument removably demarcated according to the movement of claim 7 or 8, it is characterised in that：Institute State single-chip microcomputer and be connected with daily flow button.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720698193.1U CN206848761U (en) | 2017-06-15 | 2017-06-15 | The flow measuring and controlling instrument and its operating circuit that movement is removably demarcated |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720698193.1U CN206848761U (en) | 2017-06-15 | 2017-06-15 | The flow measuring and controlling instrument and its operating circuit that movement is removably demarcated |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206848761U true CN206848761U (en) | 2018-01-05 |
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ID=60800156
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720698193.1U Expired - Fee Related CN206848761U (en) | 2017-06-15 | 2017-06-15 | The flow measuring and controlling instrument and its operating circuit that movement is removably demarcated |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206848761U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109916460A (en) * | 2019-04-01 | 2019-06-21 | 温州福鑫仪表有限公司 | A kind of natural gas swirl flowmeter |
| CN109990847A (en) * | 2019-04-03 | 2019-07-09 | 温州福鑫仪表有限公司 | A kind of natural gas intelligent swirl flowmeter |
-
2017
- 2017-06-15 CN CN201720698193.1U patent/CN206848761U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109916460A (en) * | 2019-04-01 | 2019-06-21 | 温州福鑫仪表有限公司 | A kind of natural gas swirl flowmeter |
| CN109990847A (en) * | 2019-04-03 | 2019-07-09 | 温州福鑫仪表有限公司 | A kind of natural gas intelligent swirl flowmeter |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180105 Termination date: 20190615 |
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| CF01 | Termination of patent right due to non-payment of annual fee |