CN206330634U - The sensor construction of plug-in type ultrasonic flowmeter - Google Patents

The sensor construction of plug-in type ultrasonic flowmeter Download PDF

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Publication number
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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China
Prior art keywords
circlip
probe socket
spring
wire
hole
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CN201621410102.1U
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Chinese (zh)
Inventor
王红艳
李强
孟丹丹
郑晓林
杨彬
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Zhonghuan TIG Co Ltd
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Zhonghuan TIG Co Ltd
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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

The sensor construction of plug-in type ultrasonic flowmeter
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.
CN201621410102.1U 2016-12-21 2016-12-21 The sensor construction of plug-in type ultrasonic flowmeter Active CN206330634U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621410102.1U CN206330634U (en) 2016-12-21 2016-12-21 The sensor construction of plug-in type ultrasonic flowmeter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621410102.1U CN206330634U (en) 2016-12-21 2016-12-21 The sensor construction of plug-in type ultrasonic flowmeter

Publications (1)

Publication Number Publication Date
CN206330634U true CN206330634U (en) 2017-07-14

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Cited By (2)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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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