CN207649690U - A kind of novel undergauge electromagnetic flowmeter - Google Patents

A kind of novel undergauge electromagnetic flowmeter Download PDF

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Publication number
CN207649690U
CN207649690U CN201721881734.0U CN201721881734U CN207649690U CN 207649690 U CN207649690 U CN 207649690U CN 201721881734 U CN201721881734 U CN 201721881734U CN 207649690 U CN207649690 U CN 207649690U
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China
Prior art keywords
electrode
measurement pipe
shell
undergauge
novel
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CN201721881734.0U
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Chinese (zh)
Inventor
黄田辉
赵贺
刘玲
张盛海
马鹏飞
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KAIFENG QINGTIANWEIYE FLOWMETER PLANT CO Ltd
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KAIFENG QINGTIANWEIYE FLOWMETER PLANT CO Ltd
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Abstract

The utility model is related to pipeline flow field of measuring technique, more particularly to a kind of novel undergauge electromagnetic flowmeter, including outward flange disk, shell, converter and measurement pipe, the bolts at two ends of the measurement pipe connects inner flange, the miner diameter end of welding reducer pipe in the middle part of the inner flange, the bigger diameter end of the reducer pipe welds outward flange disk, the lateral surface of inner flange is fixedly connected on the madial wall of shell, the end face lower part setting that inner flange is docked with measurement pipe is fluted, measurement pipe medial surface forms medium channel after being laid with lining, the both ends of the surface of the lining protrude from measurement pipe and embedded groove;Access cover corresponding with electrode assembly position is set on the outer wall of the shell, and the access cover is secured by bolts on shell.The utility model can realize while measure pressure and flow and replace the purpose with cleaning electrode on the basis of not dismantling electromagnetism water ga(u)ge, reduce the measurement error generated by electrode, improve the precision of measurement.

Description

A kind of novel undergauge electromagnetic flowmeter
Technical field
The utility model is related to pipeline flow field of measuring technique, and in particular to a kind of novel undergauge electromagnetic flowmeter.
Background technology
Electromagnetic flowmeter is a kind of for measuring the instrument of rate-of flow in pipeline, by itself and tested pipeline flange when use Connection, you can measure the rate-of flow in tested pipeline.Electromagnetic flowmeter is commonly used in closed full packages flow measurement, shell weldering Guard electrode and magnet exciting coil are connect, keeps electrode clean inconvenient.Although the electromagnetic flowmeter in traditional handicraft has pressure detecting Function, but can not be on signal piping pressure condition, cannot determine whether occur the problems such as rupture, nothing on pipeline at the first time Method ensures the safety problem of pipeline;And in the case where caliber is certain, medium in tested pipeline not full packages when, in measurement pipe Medium be also not full packages, to measurement result be caused error occur;The directly weldering of two flanges is set in measurement pipe, and two A flange can be in direct contact measured medium, so one layer of insulated liner is again covered on flange sealing surface, the insulation on flange face Liner is easy to be damaged because of negative pressure and thermal shock during measuring medium, and vortex flow loss, shadow are generated so as to cause flange portion Ring the reliability to measurement result.
Invention content
The purpose of this utility model is to provide be related to a kind of novel undergauge electromagnetic flowmeter, it can be achieved that measuring pressure simultaneously The purpose with cleaning electrode is replaced with flow and on the basis of not dismantling electromagnetism water ga(u)ge, reduces the measurement generated by electrode Error improves the precision of measurement.
To achieve the above object, the utility model uses following technical scheme:
The utility model provides a kind of novel undergauge electromagnetic flowmeter, including outward flange disk, shell, converter and measurement Pipe, the shell is prismatic for hollow eight, and the bolts at two ends of the measurement pipe connects inner flanges, the inner flange middle part The miner diameter end of reducer pipe is welded, the bigger diameter end of the reducer pipe welds outward flange disk, and the lateral surface of inner flange is fixedly connected on On the madial wall of shell, the end face lower part setting that inner flange is docked with measurement pipe is fluted, and measurement pipe medial surface is laid with lining After form medium channel, the both ends of the surface of the lining protrude from measurement pipe and embedded groove;The left and right sides outer wall of measurement pipe Middle part be oppositely arranged electrode tip holder, electrode assembly is connected on the electrode tip holder, the electrode assembly includes that one end passes through Electrode tip holder is inserted into the electrode, the electrode insulation set being sleeved on electrode outer wall, the butterfly being looped around on electrode insulation set outer wall of lining The electrode sleeve of spring and the fixed electrode other end, electrode front end are provided with electrode seal groove, are arranged in the electrode seal groove There is O-ring;It is relatively set with rectangular pole shoe in the middle part of the outer wall of both sides up and down of measurement pipe, excitation wire is cased on the pole shoe Circle, the upper side of the magnet exciting coil, which is provided with, presses plate, and magnet exciting coil and pole shoe pass through across the trip bolt pressed on plate It is fixed on the outer wall of measurement pipe;Counter electrode module position is provided with access cover on the outer wall of shell, and the access cover passes through Bolt is fixed on shell.
Further, the annular recess that cross section is arc is provided on the contact surface of the measurement pipe and inner flange, O-ring is placed in the annular recess.
Further, the top and bottom of the magnet exciting coil are equipped with teflon gasket.
Further, described to be flexibly connected as the spiral shell to match is arranged in the medial surface and electrode sleeve lateral surface of electrode tip holder Line, electrode sleeve are threadedly coupled with electrode tip holder.
Further, the access cover is rounded or rectangular, and the area of access cover is more than the area of electrode sleeve cross section.
Further, it is additionally provided with pressure sensor on the outer wall of the measurement pipe.
Further, the converter by flanged joint on the shell.
Compared with prior art, the beneficial effects of the utility model are:
1. pressure sensor, magnet exciting coil and the electrode assembly of the utility model setting, by outward flange disk and quilt when measurement Test tube road connects, you can and the rate-of flow in tested pipeline is measured, the pressure of tested pipeline is can measure by pressure sensor, it is real Now measure pressure and the purpose of flow simultaneously.
2. the utility model is less than the diameter of tested pipeline, works as quilt by the way that reducer pipe, the diameter of reducer pipe miner diameter end is arranged Test tube track media not full packages when, medium channel can be still full of by so that medium is entered after measurement pipe by reducer pipe miner diameter end, be reduced Due to measurement error caused by medium not full packages, the precision of measurement is improved.
3. reducer pipe is welded in the miner diameter end of welding reducer pipe in the middle part of inner flange, outward flange disk middle part by the utility model The bolts at two ends of bigger diameter end, measurement pipe connects inner flange, and the both ends of the surface of lining are protruded from measurement pipe and embedded inner flange In the lower part of disk and the groove of measurement pipe, to be omitted in the insulation between flange in the prior art and flange direct contact surface Lining, also avoid certainly insulated liner in measurement process deformation it is impaired caused by measurement error, improve the accuracy of measurement; And integral structure is formed after outward flange disk, reducer pipe and inner flange welding, measurement pipe is bolted with inner flange, surveys The contact surface of buret and inner flange is sealed with O-ring, can be to avoid dielectric leakage when measuring.
4. electrode tip holder is flexibly connected by the utility model with electrode assembly, the bolt of access cover is unscrewed, access cover is opened, takes Go out electrode assembly, facilitate the dismounting of electrode assembly, electrode is made to obtain periodic cleaning, realizes and do not dismantling electromagnetism water ga(u)ge On the basis of replace and the purpose of cleaning electrode, reduce the measurement error generated by electrode.
Description of the drawings
Fig. 1 is a kind of overall structure diagram of novel undergauge electromagnetic flowmeter of the utility model.
Fig. 2 is a kind of positive structure diagram of novel undergauge electromagnetic flowmeter of the utility model.
Fig. 3 is a kind of side structure schematic view of novel undergauge electromagnetic flowmeter of the utility model.
Fig. 4 is the schematic cross-sectional view of A-A in a kind of novel undergauge electromagnetic flowmeter Fig. 2 of the utility model.
Fig. 5 is the enlarged diagram of A in a kind of novel undergauge electromagnetic flowmeter Fig. 2 of the utility model.
Fig. 6 is the schematic cross-sectional view of B-B in a kind of novel undergauge electromagnetic flowmeter Fig. 2 of the utility model.
Fig. 7 is the schematic cross-sectional view of C-C in a kind of novel undergauge electromagnetic flowmeter Fig. 3 of the utility model.
It is marked in attached drawing:1 is outward flange disk, and 2 be shell, and 3 be converter, and 4 be access cover, and 5 be reducer pipe, and 6 be interior method Blue disk, 7 be measurement pipe, and 8 be lining, and 9 be medium channel, and 10 be electrode, and 11 be electrode insulation set, and 12 be butterfly spring, and 13 are Electrode sleeve, 14 be electrode tip holder, and 15 be pressure sensor, and 16 be magnet exciting coil, and 17 be pole shoe.
Specific implementation mode
The following examples illustrate the utility model, but is not used to limit the scope of protection of the utility model.
As shown in Fig. 1 ~ Fig. 7, a kind of novel undergauge electromagnetic flowmeter, including outward flange disk 1, shell 2, converter 3 and survey Buret 7, the shell 2 is prismatic for hollow eight, and the bolts at two ends of the measurement pipe 7 connects inner flanges 6, the inner flange The miner diameter end of 6 middle part welding reducer pipe 5 of disk, the bigger diameter end welding outward flange disk 1 of the reducer pipe 5, the lateral surface of inner flange 6 It is fixedly connected on the madial wall of shell 2, fluted, measurement pipe 7 is arranged in the end face lower part that inner flange 6 is docked with measurement pipe 7 Medial surface forms medium channel 9 after being laid with lining 8, and the both ends of the surface of the lining 8 protrude from measurement pipe 7 and embedded groove;It surveys It is oppositely arranged electrode tip holder 14 in the middle part of the left and right sides outer wall of buret 7, electrode assembly, institute are connected on the electrode tip holder 14 It includes that one end passes through electrode tip holder 14 to be inserted into the electrode 10 of lining 8, the electrode insulation set being sleeved on 10 outer wall of electrode to state electrode assembly 11, the electrode sleeve 13 for 10 other end of butterfly spring 12 and fixed electrode that electrode insulation covers on 11 outer walls, electrode 10 are looped around Front end is provided with electrode seal groove, and O-ring is provided in the electrode seal groove;The middle part of the outer wall of both sides up and down of measurement pipe 7 It is relatively set with rectangular pole shoe 17, magnet exciting coil 16, the upper side setting of the magnet exciting coil 16 are cased on the pole shoe 17 Have and press plate, magnet exciting coil 16 and pole shoe 17 across the trip bolt pressed on plate by being fixed on the outer wall of measurement pipe 7;Outside Counter electrode module position is provided with access cover 4 on the outer wall of shell 2, and the access cover 4 is secured by bolts on shell 2.
The annular recess that cross section is arc, the ring-type are provided on the contact surface of the measurement pipe 7 and inner flange 6 O-ring is placed in groove.Measurement pipe 7 is bolted with inner flange 7, and O-ring is extruded when connection, measurement pipe 7 with it is interior The annular recess of ring flange 7 is by seal with O ring.
The top and bottom of the magnet exciting coil 16 are equipped with teflon gasket, can reduce magnet exciting coil 16 and measurement pipe 7 Between friction.
The flexible connection is electric for the screw thread to match is arranged in the medial surface and 13 lateral surface of electrode sleeve of electrode tip holder 14 Pole sleeve 13 is threadedly coupled with electrode tip holder 14.
The access cover 4 is rounded or rectangular, and the area of access cover 4 is more than the area of 13 cross section of electrode sleeve.
Pressure sensor 15 is additionally provided on the outer wall of the measurement pipe 7.
By flanged joint on shell 2, converter 3 connects and the signal wire on electrode 10 converter 3.
In use, outward flange disk 1 is connect with tested pipeline, you can measure the rate-of flow in tested pipeline, pass through pressure Force snesor 15 also can measure the pressure of tested pipeline, realizes while measuring pressure and the purpose of flow.
The utility model is less than the diameter of tested pipeline, works as quilt by the way that reducer pipe 5, the diameter of 5 miner diameter end of reducer pipe is arranged Test tube track media not full packages when, medium channel 9 can be still full of by so that medium is entered after measurement pipe 7 by 5 miner diameter end of reducer pipe, be subtracted Lack due to measurement error caused by medium not full packages, has improved the precision of measurement.
Inner flange 6 is welded the miner diameter end of reducer pipe 5 by the utility model, and the big of reducer pipe 5 is welded at 1 middle part of outward flange disk The bolts at two ends at diameter end, measurement pipe 7 connects inner flange 6, and the both ends of the surface of lining 8 are protruded from measurement pipe 7 and embedded interior method In the lower part of blue disk 6 and the annular groove of measurement pipe 7, to be omitted between flange in the prior art and flange direct contact surface Insulated liner, also avoid certainly insulated liner in measurement process deformation it is impaired caused by measurement error, improve measurement Accuracy;And outward flange disk 1, reducer pipe 5 form integral structure, measurement pipe 7 and inner flange 6 after being welded with inner flange 6 It is bolted, measurement pipe 7 and the contact surface of inner flange 6 are sealed with O-ring, can be let out to avoid medium when measuring Leakage.
Electrode tip holder 14 is flexibly connected by the utility model with electrode assembly, unscrews the bolt of access cover 4, opens access cover 4, Electrode assembly is taken out, the dismounting of electrode assembly is facilitated, electrode 10 is made to obtain periodic cleaning, realize and do not dismantling electromagnetism flow The purpose with cleaning electrode 10 is replaced on the basis of gauge, reduces the measurement error generated by electrode 10.
The embodiment of the above, the only preferred embodiment of the utility model are only used to explain that this practicality is new Type, not limiting the utility model practical range to those of ordinary skill in the art certainly can be according to this specification Disclosed in technology contents, make other embodiments easily by way of replacing or changing, therefore all new in this practicality The changes and improvements etc. that the principle of type is done, should all be included in present utility model application the scope of the claims.

Claims (7)

1. a kind of novel undergauge electromagnetic flowmeter, including outward flange disk(1), shell(2), converter(3)And measurement pipe(7), It is characterized in that, the shell(2)It is prismatic for hollow eight, the measurement pipe(7)Bolts at two ends connect inner flange(6), The inner flange(6)Weld reducer pipe in middle part(5)Miner diameter end, the reducer pipe(5)Bigger diameter end weld outward flange disk (1), inner flange(6)Lateral surface be fixedly connected on shell(2)Madial wall on, inner flange(6)With measurement pipe(7)Docking End face lower part be arranged fluted, measurement pipe(7)Medial surface is laid with lining(8)After form medium channel(9), the lining(8) Both ends of the surface protrude from measurement pipe(7)And in embedded groove;Measurement pipe(7)Left and right sides outer wall in the middle part of be oppositely arranged electrode Seat(14), the electrode tip holder(14)On be connected with electrode assembly, the electrode assembly includes that one end passes through electrode tip holder(14) It is inserted into lining(8)Electrode(10), be sleeved on electrode(10)Electrode insulation set on outer wall(11), be looped around electrode insulation set(11) Butterfly spring on outer wall(12)With fixed electrode(10)The electrode sleeve of the other end(13), electrode(10)Front end is provided with electrode Seal groove is provided with O-ring in the electrode seal groove;Measurement pipe(7)The outer wall of both sides up and down in the middle part of the side of being relatively set with The pole shoe of shape(17), the pole shoe(17)On be cased with magnet exciting coil(16), the magnet exciting coil(16)Upper side be provided with tightly Pressing plate, magnet exciting coil(16)And pole shoe(17)By being fixed on measurement pipe across the trip bolt pressed on plate(7)Outer wall on; Shell(2)Outer wall on counter electrode module position be provided with access cover(4), the access cover(4)It is secured by bolts in outer Shell(2)On.
2. a kind of novel undergauge electromagnetic flowmeter according to claim 1, which is characterized in that the measurement pipe(7)With it is interior Ring flange(6)Contact surface on be provided with the annular recess that cross section is arc, O-ring is placed in the annular recess.
3. a kind of novel undergauge electromagnetic flowmeter according to claim 1, which is characterized in that the magnet exciting coil(16)'s Top and bottom are equipped with teflon gasket.
4. a kind of novel undergauge electromagnetic flowmeter according to claim 1, which is characterized in that the flexible connection is in electricity Electrode seat(14)Medial surface and electrode sleeve(13)The screw thread to match, electrode sleeve is arranged in lateral surface(13)With electrode tip holder(14) It is threadedly coupled.
5. a kind of novel undergauge electromagnetic flowmeter according to claim 1, which is characterized in that the access cover(4)In circle Shape is rectangular, access cover(4)Area be more than electrode sleeve(13)The area of cross section.
6. a kind of novel undergauge electromagnetic flowmeter according to claim 1, which is characterized in that the measurement pipe(7)It is outer Pressure sensor is additionally provided on wall(15).
7. a kind of novel undergauge electromagnetic flowmeter according to claim 1, which is characterized in that the converter(3)Pass through Flanged joint is in shell(2)On.
CN201721881734.0U 2017-12-28 2017-12-28 A kind of novel undergauge electromagnetic flowmeter Active CN207649690U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721881734.0U CN207649690U (en) 2017-12-28 2017-12-28 A kind of novel undergauge electromagnetic flowmeter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721881734.0U CN207649690U (en) 2017-12-28 2017-12-28 A kind of novel undergauge electromagnetic flowmeter

Publications (1)

Publication Number Publication Date
CN207649690U true CN207649690U (en) 2018-07-24

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CN201721881734.0U Active CN207649690U (en) 2017-12-28 2017-12-28 A kind of novel undergauge electromagnetic flowmeter

Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110542017A (en) * 2019-07-30 2019-12-06 杭州蓝捷氢能科技有限公司 Pressure detection device for hydrogenation station
CN111504403A (en) * 2020-03-21 2020-08-07 江苏中仪仪表集团有限公司 Electromagnetic flow meter for plant protection machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110542017A (en) * 2019-07-30 2019-12-06 杭州蓝捷氢能科技有限公司 Pressure detection device for hydrogenation station
CN111504403A (en) * 2020-03-21 2020-08-07 江苏中仪仪表集团有限公司 Electromagnetic flow meter for plant protection machine

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