CN206330634U - The sensor construction of plug-in type ultrasonic flowmeter - Google Patents
The sensor construction of plug-in type ultrasonic flowmeter Download PDFInfo
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- CN206330634U CN206330634U CN201621410102.1U CN201621410102U CN206330634U CN 206330634 U CN206330634 U CN 206330634U CN 201621410102 U CN201621410102 U CN 201621410102U CN 206330634 U CN206330634 U CN 206330634U
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- circlip
- probe socket
- spring
- wire
- hole
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- 238000010276 construction Methods 0.000 title claims abstract description 15
- 239000000523 sample Substances 0.000 claims abstract description 51
- 238000009413 insulation Methods 0.000 claims abstract description 27
- 239000000919 ceramic Substances 0.000 claims abstract description 25
- 238000007789 sealing Methods 0.000 claims abstract description 13
- 238000009434 installation Methods 0.000 abstract description 7
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract 1
- 238000004080 punching Methods 0.000 abstract 1
- 238000005538 encapsulation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 241000700159 Rattus Species 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The utility model discloses a kind of sensor construction of plug-in type ultrasonic flowmeter.The design includes buck plate, sensor jacket, probe socket, piezoelectric ceramic wafer, insulation column, spring, spring joint, circlip for hole, circlip for shaft, compacting ring, wire outlet seat etc..Wherein buck plate is welded on pipeline, sensor jacket is welded on buck plate, by piezoelectric ceramic wafer, spring joint, insulation column, spring etc. are put into probe socket up and down, circlip is stuck in compression spring in the circlip groove of probe socket, ensure that the bottom surface of piezoelectric ceramic wafer is fully contacted with probe socket bottom surface by the pretightning force of spring, it is ensured that the accuracy of reception and the transmission of signal.The pickup electrode and earthing pole of probe socket are all drawn by wire, are separated using insulation column with probe socket.The design is simple in construction, convenient disassembly, changes probe easily, good sealing effect, can directly punching installation, site environment strong adaptability on existing pipeline.
Description
Technical field
The utility model is related to industrial instrument and meter for automation, more particularly to a kind of sensor of plug-in type ultrasonic flowmeter
Structure.
Background technology
Plug-in type ultrasonic flowmeter is a kind of important industrial instrument, and it is laying pipeline, it has not been convenient to or
Pipeline can not be cut off and welded flange and the occasion of pipeline section type flowmeter is installed has critically important application again, this kind of field is solved
The need for collaborating measurement.Most of existing plug-in type ultrasonic flowmeter sensor all using encapsulation probe, utilizes sealing
Glue sticking, by fluid sealant and rubber ring waterproof.Sensors with auxiliary electrode sealing is poor, and O-ring seal is easily produced when especially measuring hot water
Change shape, is easily caused leak;And its structure needs to encapsulate probe, and technology difficulty is big.Therefore, a sealing property is designed
Good, the sensor of dismounting and plug-in type ultrasonic flowmeter easy to maintenance is very necessary.
The content of the invention
In view of the problem of prior art is present, the purpose of this utility model is to provide a kind of without encapsulation probe, sealing
It is good, accurate positioning, the sensor construction and installation method of installation, dismounting and plug-in type ultrasonic flowmeter easy to maintenance.
The technical scheme that the utility model is used to achieve the above object is:A kind of biography of plug-in type ultrasonic flowmeter
Sensor structure, it is characterised in that:Sensor construction includes buck plate, sensor jacket, probe socket, piezoelectric ceramic wafer, insulation
Pillar, lower spring joint, spring, lower circlip for shaft, upper spring joint, circlip for hole, right ground wire, left ground connection
Line, signal wire, outlet flap and wire outlet seat;Wherein piezoelectric ceramic wafer, insulation column, lower spring joint, spring, axle are elastic
Back-up ring, upper spring joint are sequentially placed into probe socket, and circlip for hole is put into the circlip groove of probe socket, then be will be equipped with
Piezoelectric ceramic wafer, insulation column, lower spring joint, spring, circlip for shaft, upper spring joint and circlip for hole
Probe socket is put into sensor jacket hole;Piezoelectric ceramic wafer is contacted with probe socket bottom, left ground wire and signal wire difference
The top spiral shell of the wire hole of wire outlet seat, wire outlet seat and sensor jacket is led to the earthing pole and pickup electrode of piezoelectric ceramic wafer
Line is connected, and wire outlet seat cover screw is fixed on wire outlet seat, and sensor jacket is welded on pipeline by buck plate.
The upper end of insulation column in probe socket described in the utility model is penetrated in the hole of lower spring joint end face, insulation branch
The top of post is provided with neck, lower circlip for shaft is caught in the neck at the top of insulation column, then by left ground wire and letter
Number line passes through insulation column and spring, and one end of spring is screwed in lower spring joint helicla flute, and left ground wire and signal wire are worn again
Spring joint is crossed, the other end of spring is screwed in the helicla flute of upper spring joint;The top of upper spring joint is provided with ground hole,
Ground wire is drawn out of ground hole.
Sensor construction described in the utility model also includes lower O-ring seal, compacting ring, upper circlip for shaft, sealing
Pad and upper O-ring seal, the probe socket circumferential outer surface, which is reserved with seal groove, groove, is put into lower O-ring seal, is put into sensing
The top of probe socket in device sheath is screwed into compacting ring, and the probe socket positioned at compacting ring top is provided with seal groove, upper axle elasticity
Back-up ring loads in seal groove, and the sealing gasket with wire guide is in the probe socket on the top of the circlip for hole, by upper O
Type sealing ring loads in the groove of wire outlet seat endoporus.
The lower end of sensor jacket described in the utility model is set to the cylinder bevel being engaged with buck plate center inclined hole
Face.
The utility model design principle:The design is positioned using sensor jacket and mandrel, by two pieces in same sound channel
Buck plate is welded on pipeline, then sensor jacket is welded on buck plate, it is ensured that pair of two probes in same sound channel
Positivity.The pickup electrode and earthing pole of piezoelectric ceramic wafer are drawn using wire, piezoelectric ceramic wafer is will be equipped with, insulation column, under
Spring joint 1, spring, upper spring joint, the probe socket of circlip for hole are inserted into sensor jacket, and probe socket bottom surface is
316L stainless steel materials, it is ensured that sealing.Ensure the bottom surface and probe socket bottom of piezoelectric ceramic wafer by the pretightning force of spring
Face is fully contacted, so as to ensure that the accuracy that signal is received and sent.In addition, the pickup electrode of piezoelectric ceramic wafer utilizes insulation
Pillar is separated with probe socket, is turned on by wire and circuit board;The earthing pole of piezoelectric ceramic wafer is by wire and entirely
Sensor outer housing and pipeline conducting.
The characteristics of the utility model:Compared with common plug-in type ultrasonic flow sensor, when the sensor is installed,
Drill straight hole just can be so that without rat holing, the required precision of the size and location of device to hole is relatively low on pipeline;It is fixed using mandrel during installation
Position, centering is good, and signal intensity is high;Probe socket bottom uses 316L stainless steels, is popped one's head in without encapsulation, and piezoelectric ceramic wafer is direct
It is installed in probe socket, is not contacted directly with fluid to be measured, good airproof performance;Welding manner is used between sensor jacket and pipeline
Connection, is connected firmly, solid durable;Probe socket is detachable, changes simple, repairs and easy to maintenance.Can be straight on existing pipeline
Take hole installation, site environment strong adaptability.
Brief description of the drawings
Fig. 1 is the front view being arranged on plug-in type ultrasonic flow sensor structure on pipeline;
Fig. 2 is the left view being arranged on plug-in type ultrasonic flow sensor structure on pipeline;
Fig. 3 is the top view being arranged on plug-in type ultrasonic flow sensor structure on pipeline;
Fig. 4 is plug-in type ultrasonic flow sensor internal structure sectional view.
Embodiment
The utility model is described further below in conjunction with accompanying drawing:
Referring to figs. 1 to Fig. 4, the sensor construction of plug-in type ultrasonic flowmeter includes buck plate 2, sensor jacket 3, visited
Headstock 4, piezoelectric ceramic wafer 5, insulation column 6, lower spring joint 7, spring 8, lower circlip for shaft 9, upper spring joint 10,
Circlip for hole 14, right ground wire 17, left ground wire 18, signal wire 19, outlet flap 20 and wire outlet seat 21;Wherein piezoelectricity is made pottery
Porcelain chip 5, insulation column 6, lower spring joint 7, spring 8, circlip for shaft 9, upper spring joint 10 are sequentially placed into probe socket 4
It is interior, in the circlip groove that circlip for hole 14 is put into probe socket 4, then will be equipped with piezoelectric ceramic wafer 5, insulation column 6, under
Spring joint 7, spring 8, circlip for shaft 9, the probe socket 4 of upper spring joint 10 and circlip for hole 14 are put into sensing
In the hole of device sheath 3;Piezoelectric ceramic wafer 5 is contacted with the bottom of probe socket 4, left ground wire 18 and signal wire 19 respectively with piezoelectric ceramics
The earthing pole and pickup electrode of chip 5 lead to the wire hole of wire outlet seat 21, and wire outlet seat 21 and the top screw thread of sensor jacket 3 connect
Connect, outlet flap 20 is screwed on wire outlet seat 21, sensor jacket 3 is welded on pipeline 1 by buck plate 2.
The upper end of insulation column 6 in probe socket 4 is penetrated in the hole of the end face of lower spring joint 7, and the top of insulation column 6 is set
There is neck, in the neck that lower circlip for shaft 9 is caught in the top of insulation column 6, then by left ground wire 18 and signal wire 19
Through insulation column 6 and spring 8, one end of spring 8 is screwed in the helicla flute of lower spring joint 7, left ground wire 18 and signal wire 19
Spring joint 10 is then passed through, the other end of spring 8 is screwed in the helicla flute of upper spring joint 10;Now, both ends of the spring is distinguished
In the helicla flute for being screwed into spring joint 7 and spring joint 10, it is ensured that be connected firmly, guidance quality is good.The pickup electrode of probe leads to
Cross wire to turn on circuit board, disconnected using insulation column and probe socket.The top of upper spring joint 10 is provided with ground hole, from connecing
Ground wire 17 is drawn in ground hole.
This sensor construction also includes lower O-ring seal 11, compacting ring 12, upper circlip for shaft 13, the and of sealing gasket 15
Upper O-ring seal 16, the circumferential outer surface of probe socket 4, which is reserved with seal groove, groove, is put into lower O-ring seal 11, is put into sensor
The top of probe socket 4 in sheath 3 is screwed into compacting ring 12, and the probe socket 4 positioned at the top of compacting ring 12 is provided with seal groove, and upper axle is used
Circlip 13 loads in seal groove, and the sealing gasket 15 with wire guide is mounted in the probe socket 4 on the top of circlip for hole 14,
Upper O-ring seal 16 is loaded in the groove of the endoporus of wire outlet seat 21.
The lower end of the sensor jacket 3 of this sensor construction is set to the cylinder bevel being engaged with the center inclined hole of buck plate 2
Face.
The installation method of the sensor construction of plug-in type ultrasonic flowmeter is operated according to the following steps:
(1), measurement pipe laying 1 girth and wall thickness, the radial direction between two sound channels is determined according to pipeline girth and wall thickness
Distance and with the axial distance between sound channel, so that it is determined that installation site of the sensor on pipeline 1.
(2), installed position gas flame cuttiug instrument drill straight hole on pipeline 1.
(3), sensor jacket 3 and the angle mount of pipeline 1(Angle mount angle is determined according to pipe diameter), will first be opened in same sound channel
The two packaged matching boards 2 for having inclined hole are aligned(Buck plate has direction requirement)It is individually placed to two tappings of pipeline 1.
(4), again two sensor jackets 3 are respectively put into same sound channel in the inclined hole of two buck plates 2.
(5), by mandrel one end therefrom the top patchhole of a sensor jacket 3, extracted from bottom, then from another
In the bottom patchhole of individual sensor jacket 3, until mandrel one end is exposed from top.
(6), now, using the positioning of sensor jacket and mandrel, the position of two buck plates 2 is completely solid in same sound channel
It is fixed, two packaged matching boards 2 are welded on pipeline 1.
(7), again two sensor jackets 3 are welded on two buck plates 2.
(8), the probe socket 4 assembled is put into the hole of sensor jacket 3(There is one end of piezoelectric ceramic wafer 5 down),
It is screwed into compacting ring 12(It is screwed to bottom).
(9), with pliers circlip for hole 13 is pressed into the circlip groove that probe socket 4 has been reserved, prevent that compacting ring from relaxing
Come off;Now spring 8 compresses, and ensures that the bottom surface and the bottom surface of probe socket 4 of piezoelectric ceramic wafer 5 are abundant by the pretightning force of spring 8
Contact, so as to ensure that the reception and transmission of signal.
(10), O-ring seal 16 loaded in the seal groove of the endoporus of wire outlet seat 21, then wire outlet seat 21 is connected by screw thread
Connect installed in the top of sensor jacket 3.
(11), finally outlet flap 20 is screwed on wire outlet seat 21;So far, two biographies in same sound channel
Sensor is installed, then installs two sensors in another sound channel with same method.
Claims (2)
1. a kind of sensor construction of plug-in type ultrasonic flowmeter, it is characterised in that:Sensor construction includes buck plate(2)、
Sensor jacket(3), probe socket(4), piezoelectric ceramic wafer(5), insulation column(6), lower spring joint(7), spring(8), under
Circlip for shaft(9), upper spring joint(10), circlip for hole(14), right ground wire(17), left ground wire(18), letter
Number line(19), outlet flap(20)And wire outlet seat(21);Wherein piezoelectric ceramic wafer(5), insulation column(6), lower spring joint
(7), spring(8), circlip for shaft(9), upper spring joint(10)It is sequentially placed into probe socket(4)It is interior, by circlip for hole
(14)It is put into probe socket(4)Circlip groove in, then will be equipped with piezoelectric ceramic wafer(5), insulation column(6), lower spring joint
(7), spring(8), circlip for shaft(9), upper spring joint(10)And circlip for hole(14)Probe socket(4)It is put into
Sensor jacket(3)Kong Zhong;Piezoelectric ceramic wafer(5)With probe socket(4)Bottom is contacted, left ground wire(18)And signal wire(19)
Respectively with piezoelectric ceramic wafer(5)Earthing pole and pickup electrode lead to wire outlet seat(21)Wire hole, wire outlet seat(21)With biography
Sensor sheath(3)Top threaded connection, outlet flap(20)It is screwed in wire outlet seat(21)On, sensor jacket(3)
Pass through buck plate(2)It is welded to pipeline(1)On;
The probe socket(4)In insulation column(6)Upper end penetrate lower spring joint(7)In the hole of end face, insulation column(6)
Top be provided with neck, by lower circlip for shaft(9)It is caught in insulation column(6)In the neck at top, then by left ground wire
(18)And signal wire(19)Through insulation column(6)And spring(8), spring(8)One end screw in lower spring joint(7)Helicla flute
In, left ground wire(18)And signal wire(19)It is then passed through spring joint(10), spring(8)The other end screw in upper spring joint
(10)Helicla flute in;Upper spring joint(10)Top be provided with ground hole, ground wire is drawn out of ground hole(17);
The sensor construction also includes lower O-ring seal(11), compacting ring(12), upper circlip for shaft(13), sealing gasket
(15)With upper O-ring seal(16), the probe socket(4)Circumferential outer surface, which is reserved with seal groove, groove, is put into lower O-ring seal
(11), it is put into sensor jacket(3)In probe socket(4)Top be screwed into compacting ring(12), positioned at compacting ring(12)Top
Probe socket(4)Provided with seal groove, upper circlip for shaft(13)Load in seal groove, the sealing gasket with wire guide(15)It is mounted in
The circlip for hole(14)The probe socket on top(4)In, by upper O-ring seal(16)Load wire outlet seat(21)The groove of endoporus
It is interior.
2. a kind of sensor construction of plug-in type ultrasonic flowmeter according to claim 1, it is characterised in that:Described
Sensor jacket(3)Lower end be set to and buck plate(2)The cylinder oblique section that center inclined hole is engaged.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201621410102.1U CN206330634U (en) | 2016-12-21 | 2016-12-21 | The sensor construction of plug-in type ultrasonic flowmeter |
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Application Number | Priority Date | Filing Date | Title |
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CN201621410102.1U CN206330634U (en) | 2016-12-21 | 2016-12-21 | The sensor construction of plug-in type ultrasonic flowmeter |
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CN206330634U true CN206330634U (en) | 2017-07-14 |
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CN201621410102.1U Active CN206330634U (en) | 2016-12-21 | 2016-12-21 | The sensor construction of plug-in type ultrasonic flowmeter |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107990950A (en) * | 2017-11-27 | 2018-05-04 | 潍坊奥博仪表科技发展有限公司 | A kind of intelligent online maintenance ultrasonic water meter probe |
CN110346700A (en) * | 2019-07-31 | 2019-10-18 | 国网上海市电力公司 | Transformer drain the oil valve type partial discharge monitoring with positioning system compound sensor |
-
2016
- 2016-12-21 CN CN201621410102.1U patent/CN206330634U/en active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107990950A (en) * | 2017-11-27 | 2018-05-04 | 潍坊奥博仪表科技发展有限公司 | A kind of intelligent online maintenance ultrasonic water meter probe |
CN110346700A (en) * | 2019-07-31 | 2019-10-18 | 国网上海市电力公司 | Transformer drain the oil valve type partial discharge monitoring with positioning system compound sensor |
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