CN104634399B - Valve-embedded water proof type ultrasonic water meter and calorimeter and its pipeline section among pipeline section - Google Patents
Valve-embedded water proof type ultrasonic water meter and calorimeter and its pipeline section among pipeline section Download PDFInfo
- Publication number
- CN104634399B CN104634399B CN201510034726.1A CN201510034726A CN104634399B CN 104634399 B CN104634399 B CN 104634399B CN 201510034726 A CN201510034726 A CN 201510034726A CN 104634399 B CN104634399 B CN 104634399B
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- Prior art keywords
- pipeline section
- valve
- gear
- seal box
- diversion pipe
- Prior art date
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- Expired - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 238000007789 sealing Methods 0.000 claims abstract description 28
- 238000003780 insertion Methods 0.000 claims abstract description 7
- 230000037431 insertion Effects 0.000 claims abstract description 7
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 10
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 9
- 229910052760 oxygen Inorganic materials 0.000 claims description 9
- 239000001301 oxygen Substances 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- -1 polytetrafluoroethylene Polymers 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 230000011514 reflex Effects 0.000 claims description 3
- 239000000565 sealant Substances 0.000 claims description 3
- 230000002463 transducing effect Effects 0.000 claims 1
- 230000005611 electricity Effects 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
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Abstract
Valve-embedded water proof type ultrasonic water meter and calorimeter and its pipeline section among pipeline section, it is the pipeline section for having interior straight pipe at one（1）It is interior, sealing ring first is housed by one（31）With diversion pipe soft seal ring（32）Diversion pipe（34）, from pipeline section（1）Side be inserted into pipeline section（1）Interior straight pipe in, later by valve ball（30）Pipeline section is put into from opposite side（1）Interior straight pipe in, and by valve rotating bar（28）Bottom insertion valve ball（30）Fitting groove in, then by another be equipped with sealing ring（31）With diversion pipe soft seal ring（32）Diversion pipe（34）, from pipeline section（1）Opposite side be inserted into pipeline section interior straight pipe in, column will be reflected（35）It is forced into pipeline section simultaneously（35）In the aperture for filling reflection pillar, and make its reflection pillar（35）Reflecting surface center and pipeline section（1）The central shaft of interior straight pipe coincide.
Description
Technical field：
The invention belongs to main water metering instrument and thermal metering instrument, relate in particular to valve built among a kind of pipeline section
The water proof type ultrasonic water meter and calorimeter and its pipeline section of door.
Background technology：
The intelligent control type ultrasonic water meter and calorimeter, valve for being presently used for various places are all disposed within ultrasonic wave
Outside energy converter, the particularly water outlet of ultrasonic measurement pipeline section allows for water meter and calorimeter on ultrasonic wave and is set integrally in this way
Timing is not easy to arrange, while the spacing between the energy converter of ultrasonic wave is restricted and shortens, and result can lead to ultrasonic wave
Sensitivity decrease when measuring；Again since current ultrasonic water meter and calorimeter do not have integrating circuit plate and supplying cell
Good water proof and dust proof design is done, so integrating circuit plate is caused easily to be corroded by humid air, supplying cell is also in tide
It easily leaks electricity in humid air, so as to greatly reduce the service life of supplying cell.
The present invention provide a solution, it can use that water meter and the measuring accuracy of calorimeter that ultrasonic wave is made and
Sensitivity is improved, and its control valve is arranged on the centre of pipeline section, does not influence effective wave-path of ultrasonic wave, disengaging
Mouth uses full symmetric structure, so the ultrasonic water meter and the inlet and outlet of calorimeter thus made can be converted each other, is pacifying
Without judging inlet and outlet direction during dress；Meanwhile the present invention employs waterproofing design to the cavity of integrating circuit plate and supplying cell,
So as to which dress integrating circuit plate in the inner and supplying cell be made to have good protective effect.
Invention content：
The invention is realized in this way：It is the pipeline section that an interior straight pipe is made with metal or nonmetallic materials, at it
Done on side wall there are two the circular groove of dress energy converter, and done on the symmetrical side wall of two grooves corresponding installation and
The aperture of fixation reflex column is done in the centre of the circular trough side of installation energy converter there are one female side opening, the side opening
With interior straight pipe unicom, multiple small screw holes have been done beside the screw thread side opening；By valve rotating bar insertion valve rotating nut
It is interior, and the rotating bar soft seal ring of 3 or more is housed on valve rod, before valve rotating bar insertion valve rotating nut,
In the lubrication shaft pads that the flange of valve rotating bar is made equipped with one or more with polytetrafluoroethylene (PTFE)；In valve rotating nut
Bottom put on rotating nut soft seal ring after, valve rotating nut is screwed in the internal thread side opening among pipeline section, and is made
Rotating nut soft seal ring is compacted, deforms and by the orifice sealing；It is made with the smaller and on-deformable material of temperature change
Diversion pipe, the in-out end of diversion pipe make horn mouth, and have done in flared end tangent with reflection column and energy converter pilot hole
Half-round cross hole, done inside recess in the other end of the diversion pipe, done on the lateral wall of diversion pipe there are two annular groove；
The pit end of two diversion pipes is packed into a sealing ring made with polytetrafluoroethylene (PTFE), and makes the pit of its bottom and diversion pipe
Sealing, all assembles diversion pipe soft seal ring in the groove of the lateral wall of diversion pipe.Sealing ring and diversion pipe first are housed by one
The horn mouth of the diversion pipe of soft seal ring is inserted into from the side of pipeline section in the interior straight pipe of pipeline section towards outside pipeline section；Later by valve
Ball is put into from opposite side in the interior straight pipe of pipeline section, and makes the fitting groove of valve ball and the bottom alignment of valve rotating bar, and will
In the fitting groove of the bottom insertion valve ball of valve rotating bar；Then by another equipped with sealing ring and diversion pipe soft seal ring
The horn mouth of diversion pipe is inserted into from the opposite side of pipeline section in the interior straight pipe of pipeline section towards outside pipeline section, will be anti-after pre-adjustment
Column is penetrated to be forced into simultaneously in the aperture of pipeline section dress reflection pillar, and make the reflecting surface of its reflection pillar center and pipeline section it is interior straight
The central shaft of siphunculus coincides.
Energy converter is packed on pipeline section in the circular groove of dress energy converter, then by supplying cell and integrating circuit plate and
The electrical seal box of the accessories such as reduction gearing and decelerating motor is fixed on using fixing screws on pipeline section, the spademan of electrical seal box
Two energy converters are compressed respectively；It is isolated at valve rotating bar with isolating seal circle, so as to make extraneous air can not be from valve
Enter in electrical seal box at rotating bar；The bottom of fixing screws puts on small sealing ring in advance, then on pipeline section is screwed in
Fixing threaded hole in and compress, so electrical seal box will not be entered at the fixing screw hole of these holding electrical seal boxes
It is interior；It is located at the top in electrical seal box in rotating valve bar and fixes an output gear, two is packed into electrical seal box
Rotary gear axis is sequentially loaded into gear 5, gear 4, gear 3, gear 3 on two rotary gear shafts later, by a small electricity of direct current
The output shaft end of machine is packed into an electric machine support made with plastics, and is tightly fixed on the output shaft of direct-flow small motor
Electric machine support equipped with direct-flow small motor is fixed on Screw the corresponding position in electrical seal box, in motor branch by gear 1
Gear 2 is packed on the fixed rotating shaft of frame, and it is made to be meshed with gear 1 and gear 3, finally with a toothed wheel box cover plate by gear
The top of rotation axis is fixed.Integrating circuit plate is fixed in the outer top of toothed wheel box cover plate, supplying cell is also placed in electrical sealing
In box, the signal wire of the transducer signal line of ultrasonic wave and temperature sensor is penetrated electrically from the side aperture of electrical seal box
In seal box, and the signal wire glue in its electrical seal box is sealed with fluid sealant and makes its sealing, then ride flute profile sealing ring
In the open top end of electrical seal box, finally flute profile sealing ring is oppressed with a head cover with inside and outside wedge-shaped stile and is deformed,
Until electrical seal box open top all seal, so far, loaded in electrical seal box direct-flow small motor, each gear,
Rotary gear axis, integrating circuit plate, supplying cell etc. are all completely isolated with outside air, and extraneous humid air just can not
Corrosion removal integrating circuit plate and make supplying cell because leaking electricity during humid air in into electrical seal box.
In addition, before the head cover assembling with inside and outside wedge-shaped stile, direct-flow small motor is not influenced in electrical seal box
A certain amount of drier and oxygen eliminating agent are packed into the place of gear rotation and the installation of integrating circuit plate, is treated vertical with inside and outside wedge shape
After the head cover assembling on side, portion of water in air is absorbed by electrical seal box loaded on the drier in electrical seal box,
Oxygen in it will be consumed a part by oxygen eliminating agent, so as to make air in electrical seal box relatively dry less with oxygen content,
Its result just makes integrating circuit plate and supplying cell preferably be protected.
Description of the drawings：
Fig. 1 is the main view sectional view of the present invention
Fig. 2 is the main view sectional view of pipeline section
Fig. 3 is the vertical view of Fig. 2
Fig. 4 is the front view of flute profile sealing ring
Fig. 5 is 4 top plan views
Fig. 6 is the front view of the head cover with inside and outside wedge-shaped stile
Fig. 7 is 6 top plan views
Fig. 8 is the front view of electrical seal box
Fig. 9 is 8 top plan views
Figure 10 is the main view sectional view of diversion pipe
Figure 11 is the vertical view of Figure 10
In figure：1st, pipeline section；2nd, transducer seal circle；3rd, energy converter；4th, fixing screws；5th, electric machine support；6th, the small electricity of direct current
Machine；7th, gear 1；8th, gear 2；9th, toothed wheel box cover plate；10th, gear 3；11st, gear 4；12nd, output gear fixing screws；13rd, small spiral shell
Nail；14th, rotary gear axis；15th, gear 5；16th, output gear；17th, battery anti-dismantle screw；18th, integrating circuit plate；19th, flute profile is close
Seal；20th, the head cover with inside and outside wedge-shaped stile；21st, upper watch glasses；22nd, electrical seal box；23rd, supplying cell；24th, small sealing
Circle；25th, isolating seal circle；26th, nut soft seal ring；27th, rotating bar soft seal ring；28th, valve rotating bar；29th, shaft is lubricated
Pad；30th, valve ball；31st, sealing ring；32nd, diversion pipe soft seal ring；33 valve rod rotating nuts,；34th, diversion pipe；35th, reflection is vertical
Column；36th, lower watch glasses.
Specific embodiment：
The invention is realized in this way：It is the pipeline section that an interior straight pipe is made with metal or nonmetallic materials（1）,
It is done on its side wall there are two the circular groove of dress energy converter, and corresponding installation has been done on the symmetrical side wall of two grooves
With the aperture of fixation reflex column, done in the centre of the circular trough side of installation energy converter there are one female side opening, the side
Hole and interior straight pipe unicom, have done multiple small screw holes beside the screw thread side opening；By valve rotating bar（28）Insertion valve turns
Dynamic nut（32）It is interior, and in valve rotating bar（28）The upper rotating bar soft seal ring for being equipped with 3 or more（27）, rotated in valve
Bar（28）Insertion valve rotating nut（33）Before, in valve rotating bar（28）Flange be equipped with one or more polytetrafluoro
The lubrication shaft pad that ethylene is made（29）；In valve rotating nut（33）Bottom put on rotating nut soft seal ring（26）It
Afterwards, by valve rotating nut（33）Screw in pipeline section（1）In intermediate internal thread side opening, and make rotating nut soft seal ring（26）Quilt
Compress, deformation and by the orifice sealing；Diversion pipe is made with the smaller and on-deformable material of temperature change（34）, diversion pipe
（34）In-out end make horn mouth, and do the semicircle tangent with reflection column and energy converter pilot hole in flared end and lead to
Hole, in the diversion pipe（34）The other end done inside recess, in diversion pipe（34）Lateral wall on do there are two annular groove；
Two diversion pipes（34）Pit end be packed into a sealing ring made with polytetrafluoroethylene (PTFE)（31）, and make its bottom and water conservancy diversion
Pipe（34）Pit sealing, in diversion pipe（34）Lateral wall groove in all assemble diversion pipe soft seal ring（32）.First by one
Root is equipped with sealing ring（31）With diversion pipe soft seal ring（32）Diversion pipe（34）Horn mouth towards outside pipeline section, from pipeline section（1）'s
Pipeline section is inserted into side（1）Interior straight pipe in；Later by valve ball（30）Pipeline section is put into from opposite side（1）Interior straight pipe in,
And make valve ball（30）Fitting groove and valve rotating bar（28）Bottom alignment, and by valve rotating bar（28）Bottom be inserted into
Valve ball（30）Fitting groove in；Then sealing ring is housed by another（31）With diversion pipe soft seal ring（32）Diversion pipe
（34）Horn mouth towards outside pipeline section, from pipeline section（1）Opposite side be inserted into pipeline section interior straight pipe in, after pre-adjustment, will
Reflect column（35）It is forced into pipeline section simultaneously（35）In the aperture for filling reflection pillar, and make its reflection pillar（35）Reflecting surface in
The heart and pipeline section（1）The central shaft of interior straight pipe coincide.
By energy converter（3）It is packed into pipeline section（1）In the circular groove of upper dress energy converter, then by supplying cell（23）And integration
Circuit board（18）And the electrical seal box of the accessories such as reduction gearing and decelerating motor is adopted（22）Use fixing screws（4）It is fixed on pipeline section
（1）On, electrical seal box（22）Spademan respectively by two energy converters（3）It compresses；Valve rotating bar（28）Place's isolation is close
Seal（25）Isolation, so as to make extraneous air can not be from valve rotating bar（28）Place enters in electrical seal box（22）；It is fixed
Screw（4）Bottom put on small sealing ring in advance（24）, then screwed in pipeline section（1）On fixing threaded hole in and compress,
So these holding electrical seal boxes（22）Fixing screw hole at will not enter electrical seal box（22）It is interior；In rotating valve
Bar（28）Positioned at electrical seal box（22）An output gear is fixed on interior top（16）, in electrical seal box（22）It is interior to be packed into two
Rooted tooth wheel shaft（14）, later in two rotary gear shafts（14）On be sequentially loaded into gear 5（15）, gear 4（11）, gear 3
（10）, gear 3（10）, by a direct-flow small motor（6）Output shaft end be packed into an electric machine support made with plastics（5）,
And in direct-flow small motor（5）Output shaft on tightly fix gear 1（7）, direct-flow small motor will be housed（5）Electric machine support
（6）Use Screw（13）It is fixed on electrical seal box（22）Interior corresponding position, in electric machine support（5）Fixed rotating shaft on be packed into
Gear 2（8）, and make itself and gear 1（7）With gear 3（10）It is meshed, finally with a toothed wheel box cover plate（9）Gear is rotated
Axis（14）Top fix.In toothed wheel box cover plate（9）Outer top fix integrating circuit plate（18）, by supplying cell（23）Also it puts
Enter electrical seal box（22）It is interior, by the signal wire of the transducer signal line of ultrasonic wave and temperature sensor from electrical seal box（22）
Side aperture penetrate electrical seal box（22）It is interior, and with fluid sealant by its electrical seal box（22）Interior signal wire glue is sealed and is made
It is sealed, then by flute profile sealing ring（19）Ride over electrical seal box（22）Open top end, finally with one carry inside and outside wedge
The head cover of shape stile（20）By flute profile sealing ring（20）Compressing deformation, until electrical seal box（22）Open top it is all close
Envelope, so far, loaded on electrical seal box（22）Interior direct-flow small motor（6）, each gear, rotary gear axis（14）, integrating circuit
Plate（18）, supplying cell（23）Deng humid air all completely isolated with outside air, extraneous cannot propagate into it is electrical close
Jacket（22）Interior corrosion removal integrating circuit plate（18）With make supplying cell（23）It leaks electricity due to humid air.
In addition, in the head cover with inside and outside wedge-shaped stile（20）Before assembling, in electrical seal box（22）It does not influence inside straight
Flow small machine（6）With gear rotation and integrating circuit plate（18）The place of installation is packed into a certain amount of drier and oxygen eliminating agent,
Treat the head cover with inside and outside wedge-shaped stile（20）After assembling, loaded on electrical seal box（22）Interior drier is absorbed by electrical close
Jacket（22）Portion of water in interior air, the oxygen in it will be consumed a part by oxygen eliminating agent, so as to make electrical seal box
（22）Interior air is relatively dry and oxygen content is less, and result just makes integrating circuit plate（18）And supplying cell（23）It obtains more preferable
Protection.
Claims (4)
1. valve-embedded water proof type ultrasonic water meter and calorimeter and its pipeline section among pipeline section, it is characterized in that：It uses metal
Or nonmetallic materials make the pipeline section (1) of an interior straight pipe, valve rotating bar (28) insertion valve rotating nut (33) is interior,
And the rotating bar soft seal ring (27) of 3 or more is housed in valve rotating bar (28), it is inserted into valve in valve rotating bar (28)
Before door rotating nut (33), in the profits that the flange of valve rotating bar (28) is made equipped with one or more with polytetrafluoroethylene (PTFE)
Trackslip axle pad (29), rotating nut soft seal ring (26) is put in the bottom of valve rotating nut (33), by valve rotating nut
(33) it screws in the intermediate internal thread side opening of pipeline section (1), diversion pipe is made with the smaller and on-deformable material of temperature change
(34), a sealing ring (31) made with polytetrafluoroethylene (PTFE) is respectively packed at the pit end of two diversion pipes (34), and makes its bottom
Portion and the pit of diversion pipe (34) seal, and diversion pipe soft seal ring is all assembled in the groove of the lateral wall of diversion pipe (34)
(32)；
It is isolated at valve rotating bar (28) with isolating seal circle (25), the bottom of fixing screws (4) puts on small sealing ring in advance
(24), then the fixing threaded hole on pipeline section (1) is screwed in is interior and compresses, in valve rotating bar (28) positioned at electrical seal box
(22) output gear (16) is fixed on the top in, and two rooted tooth wheel shafts (14) are packed into electrical seal box (22), it
Gear 5 (15), gear 4 (11), gear 3 (10) are sequentially loaded on two rotary gear shafts (14) afterwards, by a direct-flow small motor
(6) output shaft end is packed into an electric machine support (5) made with plastics, and the close-fitting on the output shaft of direct-flow small motor (6)
The fixed gear 1 (7) in ground is closed, the electric machine support (5) equipped with direct-flow small motor (6) is fixed on electrical seal box with Screw (13)
(22) corresponding position in is packed into gear 2 (8) on the fixed rotating shaft of electric machine support (5), and makes itself and gear 1 (7) and gear
3 (10) are meshed, and are finally fixed the top of rotary gear axis (14) with a toothed wheel box cover plate (9)；
Integrating circuit plate (18) is fixed in the outer top of toothed wheel box cover plate (9), supplying cell (23) is also placed in electrical seal box
(22) in, the side aperture of the signal wire of the transducer signal line of ultrasonic wave and temperature sensor from electrical seal box (22) is worn
Enter in electrical seal box (22), and the signal wire glue in its electrical seal box (22) is sealed with fluid sealant and makes its sealing, then
Flute profile sealing ring (19) is ridden over to the open top end of electrical seal box (22), finally with a head cover with inside and outside wedge-shaped stile
(20) flute profile sealing ring (19) is oppressed and deformed, until the open top of electrical seal box (22) all seals.
2. valve-embedded water proof type ultrasonic water meter and calorimeter and its pipeline section among pipeline section according to claim 1,
It is characterized in that：The pipeline section (1) of an interior straight pipe is made with metal or nonmetallic materials, done on its side wall there are two dress transducing
The circular groove of device, and corresponding installation and the aperture of fixation reflex column are done on the symmetrical side wall of two grooves,
It is done in the centre of the circular trough side of installation energy converter there are one female side opening, the side opening and interior straight pipe unicom, at this
Multiple small screw holes have been done beside screw thread side opening.
3. valve-embedded water proof type ultrasonic water meter and calorimeter and its pipeline section among pipeline section according to claim 1,
It is characterized in that：Diversion pipe (34) is made with the smaller and on-deformable material of temperature change, the in-out end of diversion pipe (34) is made
Horn mouth, and the half-round cross hole tangent with reflection column and energy converter pilot hole is done in flared end, in the diversion pipe (34)
The other end done inside recess, done on the lateral wall of diversion pipe (34) there are two annular groove.
4. valve-embedded water proof type ultrasonic water meter and calorimeter and its pipeline section among pipeline section according to claim 1,
It is characterized in that：Direct-flow small motor (6) and gear rotation and integrating circuit plate (18) peace are not influenced in electrical seal box (22)
The place of dress is packed into a certain amount of drier and oxygen eliminating agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510034726.1A CN104634399B (en) | 2015-01-24 | 2015-01-24 | Valve-embedded water proof type ultrasonic water meter and calorimeter and its pipeline section among pipeline section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510034726.1A CN104634399B (en) | 2015-01-24 | 2015-01-24 | Valve-embedded water proof type ultrasonic water meter and calorimeter and its pipeline section among pipeline section |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104634399A CN104634399A (en) | 2015-05-20 |
| CN104634399B true CN104634399B (en) | 2018-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510034726.1A Expired - Fee Related CN104634399B (en) | 2015-01-24 | 2015-01-24 | Valve-embedded water proof type ultrasonic water meter and calorimeter and its pipeline section among pipeline section |
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| CN (1) | CN104634399B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10295387B2 (en) * | 2017-04-25 | 2019-05-21 | Vittorio BONOMI | Integrated ball valve and ultrasonic flowmeter |
| CN111307242B (en) * | 2020-03-13 | 2021-10-01 | 江苏伸辰智能仪器有限公司 | Non-magnetic water meter collecting device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202903255U (en) * | 2012-09-13 | 2013-04-24 | 江西三川水表股份有限公司 | Ultrasonic meter integrating meter and valve |
| CN202903256U (en) * | 2012-11-23 | 2013-04-24 | 邓鲁坚 | On-line washable gauge and valve integrated ultrasonic flow sensor |
| CN203443623U (en) * | 2013-08-23 | 2014-02-19 | 北京嘉洁能科技有限公司 | Integrated flow meter |
| JP2014098563A (en) * | 2012-11-13 | 2014-05-29 | Panasonic Corp | Flow rate measurement apparatus |
-
2015
- 2015-01-24 CN CN201510034726.1A patent/CN104634399B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202903255U (en) * | 2012-09-13 | 2013-04-24 | 江西三川水表股份有限公司 | Ultrasonic meter integrating meter and valve |
| JP2014098563A (en) * | 2012-11-13 | 2014-05-29 | Panasonic Corp | Flow rate measurement apparatus |
| CN202903256U (en) * | 2012-11-23 | 2013-04-24 | 邓鲁坚 | On-line washable gauge and valve integrated ultrasonic flow sensor |
| CN203443623U (en) * | 2013-08-23 | 2014-02-19 | 北京嘉洁能科技有限公司 | Integrated flow meter |
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| Publication number | Publication date |
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| CN104634399A (en) | 2015-05-20 |
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Granted publication date: 20180608 |