CN209055152U - A kind of electromagnetic flowmeter - Google Patents
A kind of electromagnetic flowmeter Download PDFInfo
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- CN209055152U CN209055152U CN201822060668.1U CN201822060668U CN209055152U CN 209055152 U CN209055152 U CN 209055152U CN 201822060668 U CN201822060668 U CN 201822060668U CN 209055152 U CN209055152 U CN 209055152U
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- fixed
- diversion pipe
- ring flat
- shielding case
- magnet exciting
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Abstract
The utility model relates to a kind of electromagnetic flowmeters, it includes diversion pipe, two measuring electrodes and two magnet exciting coils, the measuring electrode and magnet exciting coil are alternately fixed on water conservancy diversion tube wall along the circumferential axial symmetry of diversion pipe, lining is provided in the diversion pipe, the both ends of the diversion pipe length direction are respectively arranged with side flange；The water conservancy diversion pipe outer wall is equipped with two fixed ring flat-plates on the inside of two side flanges, the measuring electrode and magnet exciting coil are arranged between two fixed ring flat-plates, shell is provided on the outside of the diversion pipe, the both ends in the outer cover length direction are fixed at the top of the fixation ring flat-plate of two sides respectively；Magnetic shield is additionally provided between two fixed ring flat-plates, the magnetic shield, which is arranged inside the shell and surround, to be wrapped in outside measuring electrode and magnet exciting coil.The utility model has the effect of that extraneous clutter interference magnetic field can be shielded.
Description
Technical field
The utility model relates to the technical fields of measuring instrument, more particularly, to a kind of electromagnetic flowmeter.
Background technique
The wall thickness of the stainless steel pipe of common electromagnetic flowmeter is thicker, and mechanical strength is higher, and side flange and sealed sides are protected
Plate is closer.Side flange, sealing side guard plate and shell are made of to use the good material of magnetic property, and stainless steel is led
Pipe is almost non-magnetic, therefore the magnetic screen of the flange that only keeps to the side, sealing side guard plate and shell is inadequate.Extraneous clutter interference
Magnetic field can influence faint flow signal, this is to amount by entering inside electromagnetic flowmeter between sealing side guard plate and side flange
Journey is more more obvious than wider electromagnetic flowmeter flow low side, therefore the signal quality of flow low side will receive very big influence, and
Although and the generouser stainless steel pipe of use can increase the mechanical strength of instrument, will increase higher cost.
Utility model content
The purpose of the utility model is to provide a kind of electromagnetic flowmeters that can be shielded to extraneous clutter interference magnetic field.
The above-mentioned purpose of utility model of the utility model has the technical scheme that
A kind of electromagnetic flowmeter, including diversion pipe, two measuring electrodes and two magnet exciting coils, the measuring electrode and are encouraged
Magnetic coil is alternately fixed on water conservancy diversion tube wall along the circumferential axial symmetry of diversion pipe, and lining is provided in the diversion pipe, described
The both ends of diversion pipe length direction are respectively arranged with side flange；
The water conservancy diversion pipe outer wall is equipped with two fixed ring flat-plates on the inside of two side flanges, the measuring electrode and encourages
Magnetic coil is arranged between two fixed ring flat-plates, is provided with shell on the outside of the diversion pipe, and the two of the outer cover length direction
End is fixed at the top of the fixation ring flat-plate of two sides respectively；
Magnetic shield is additionally provided between two fixed ring flat-plates, the magnetic shield setting is inside the shell and around packet
It is rolled in outside measuring electrode and magnet exciting coil.
By using above-mentioned technical proposal, the setting of magnetic shield is right for shielding to extraneous clutter interference magnetic field
The quality for promoting flow low-side signal is significant.
The utility model is further arranged to: the magnet exciting coil is fixed on water conservancy diversion pipe outer wall, the line by coil holder
The fixed cylinder for magnet exciting coil socket is provided in the middle part of ring support, the fixed cylinder is connected with compression far from the threaded one end of coil holder
Nut, the clamp nut coaxially offer via hole.
By using above-mentioned technical proposal, the installation of magnet exciting coil is facilitated.
The utility model is further arranged to: the magnetic shield includes the upper shielding case being detachably connected and lower shielding
It covers, offers the through-hole that power pole cable and magnet exciting coil cable pass through respectively on the upper shielding case and lower shielding case.
By using above-mentioned technical proposal, splice fixed upper shielding case and lower shielding case, has structure simple, installation side
Just the advantages of.
The utility model is further arranged to: the upper shielding case and lower shielding case length direction both ends are interlaced and open
Equipped with locking hole, the upper shielding case and lower shielding case are fixed on fixed cylinder roof by clamp nut abutting, described
Clamp nut passes through locking hole and is threadedly coupled with fixed cylinder.
By using above-mentioned technical proposal, the fast-assembling of shielding case and lower shielding case, and staggered screen up and down are realized
Covering cover can adapt to the diversion pipe of various outer diameter.
The utility model is further arranged to: two fixed ring flat-plate inner walls are provided with for upper shielding case, lower shielding case
Overlapped at both ends stop collar.
By using above-mentioned technical proposal, the location and installation of shielding case and lower shielding case is facilitated.
The utility model is further arranged to: the outer casing end is provided with Sawtooth connection portion, the fixed ring flat-plate top
The fixed part for engaging and being welded and fixed with interconnecting piece is provided on the inside of wall.
By using above-mentioned technical proposal, the setting of interconnecting piece and fixed part improves shell and seals connecing between side plate
Contacting surface product, and then improve the leakproofness of shell.
The utility model is further arranged to: the junction of the fixed part and interconnecting piece is provided with reinforcing ring, described to add
Strong ring both ends are welded and fixed with fixed ring flat-plate and outer shell outer wall respectively.
By using above-mentioned technical proposal, the setting of reinforcing ring realizes shell and fixes with the secondary seal for sealing side plate.
The utility model is further arranged to: the reinforcing ring is embedded in the junction of shell and fixed ring flat-plate.
By using above-mentioned technical proposal, integrally-built cleaning is improved.
In conclusion the advantageous effects of the utility model are as follows:
1. using magnetic shield, it can play and extraneous clutter interference magnetic field is shielded, promote flow low-side signal
Quality effect；
2. using interconnecting piece, fixed part and reinforcing ring, the effect for improving shell fixed installation and leakproofness can be played.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model.
Fig. 2 is in the utility model for embodying the perspective view of the explosion of magnetic screen modular construction.
Fig. 3 is in Fig. 2 for embodying the portion the A enlarged diagram for hiding AND DEWATERING FOR ORIFICE STRUCTURE.
Fig. 4 is the schematic diagram that the utility model is used to embody shell, magnetic shield positional relationship.
In figure, 1, diversion pipe；11, lining；12, Bian Falan；13, positioning ring groove；2, measuring electrode；21, electrode tip holder；3, it encourages
Magnetic coil；31, coil holder；311, fixed cylinder；32, screw rod；321, locking nut；33, clamp nut；331, via hole；4, shell；
41, interconnecting piece；5, fixed ring flat-plate；51, fixed part；52, stop collar；6, electrode shield；61, notch；611, the second hangnail；62,
Hide orifice plate；621, the first hangnail；7, reinforcing ring；8, magnetic shield；81, upper shielding case；82, lower shielding case；83, through-hole.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
It referring to Figures 1 and 2, is a kind of electromagnetic flowmeter disclosed by the utility model, including diversion pipe 1,1 inner wall of diversion pipe
It is provided with lining 11,1 both ends of diversion pipe are fixed with side flange 12, fixed ring flat-plate 5 there are two fixations in the middle part of 1 outer wall of diversion pipe, and two
Two electrode tip holders 21 and two coil holders 31 for being fixed on 1 outer wall of diversion pipe, two electrode tip holders are provided between a fixed ring flat-plate 5
21 and two coil holders 31 be alternately fixed on 1 tube wall of diversion pipe along the circumferential axial symmetry of diversion pipe 1.It is provided in electrode tip holder 21
Measuring electrode 2, measuring electrode 2 flush after passing through diversion pipe 1 and lining 11 with 11 inner wall of lining；1 outer wall of diversion pipe is fixed with two
A screw rod 32 for fixing line ring support 31, coil holder 31 are set on screw rod 32 and are gripped by locking nut 321, line
Middle part is provided with fixed cylinder 311 on ring support 31, magnet exciting coil 3 is arranged in fixed cylinder 311, magnet exciting coil 3 is set in fixed cylinder
It is fixed on 311 and by the pressing of clamp nut 33, coaxially offers the via hole passed through for 3 cable of magnet exciting coil on clamp nut 33
331。
Referring to Figures 1 and 2, be provided with shell 4 outside measuring electrode 2 and magnet exciting coil 3, the end of shell 4 respectively with fixation
Ring flat-plate 5 is welded and fixed.Be covered with electrode shield 6 outside measuring electrode 2, electrode shield 6 be arranged in shell 4 and with outside diversion pipe 1
Wall is tightly connected.
Referring to Fig. 3, electrode shield 6 is in tubular structure open at one end, and 1 outer wall of diversion pipe is provided with power pole shield 6
Be open the positioning ring groove 13 being embedded, and the opening of electrode shield 6 is embedded in positioning ring groove 13 and consolidates with 1 outer wall gluing of diversion pipe
It is fixed.The opening of electrode shield 6 is provided with the notch 61 that power pole cable is pierced by, and unidirectionally slides in notch 61 and is connected with screening orifice plate
62, it hides orifice plate 62 and is made of elastic material, hide orifice plate 62 and slid to close to 1 outer wall direction of diversion pipe.Hide orifice plate 62 it is opposite two
Side is provided with the first hangnail 621 of rubber material, and 61 outer of notch is provided with the rubber material being cooperatively connected with the first hangnail 621
The second hangnail 611, hide orifice plate 62 can be slid towards 1 direction of diversion pipe.Hide orifice plate 62 setting so that notch 61 size
It is adapted to the electrode outlet cable of different thicknesses, improves the leakproofness of electrode shield 6；Made simultaneously by hiding the pressing of orifice plate 62
With the position of realization electrode outlet cable is fixed, and the possibility that outlet cable is detached from test electrode is reduced.
Referring to Fig. 2,4 both ends of shell are connected on the fixed ring flat-plate 5 in two sides and are formed Sawtooth connection portion 41, fixed ring flat-plate 5
It is provided with the zigzag fixed part 51 engaged with interconnecting piece 41 on the inside of roof, interconnecting piece 41 is welded and fixed with fixed part 51.Sawtooth
The interconnecting piece 41 and fixed part 51 of shape are used to increase the contact area of shell 4 and fixed ring flat-plate 5, increase shell 4 and fixed ring flat-plate 5
Pad, realize the preliminary welded seal of shell 4 and fixed ring flat-plate 5.Connect to further increase shell 4 and fixed ring flat-plate 5
The leakproofness for meeting place is embedded with reinforcing ring 7 in its junction, and reinforcing ring 7 encircles the seam top in interconnecting piece 41 and fixed part 51
Portion and covering joints, reinforcing ring 7 are embedded in fixed 5 outside of ring flat-plate, 7 both ends of reinforcing ring respectively with 4 lateral wall of shell and fixation
5 lateral wall of ring flat-plate is welded and fixed, and realizes shell 4 and the secondary seal of fixed ring flat-plate 5 is fixed.
Referring to Fig. 2 and Fig. 4, magnetic shield 8 is provided between two fixed ring flat-plates 5, magnetic shield 8 is arranged in shell 4,
Magnetic shield 8 is coated on outside magnet exciting coil 3 and measuring electrode 2, and the setting of magnetic shield 8 is for extraneous clutter interference magnetic field
It is shielded, it is significant to the quality for promoting flow low-side signal.Magnetic shield 8 includes upper shielding case 81 and lower shielding case
82, the through-hole 83 that 2 cable of power pole and 3 cable of magnet exciting coil pass through is offered respectively on upper shielding case 81 and lower shielding case 82；
The junction of upper shielding case 81 and lower shielding case 82 is fixed on the one end of magnet exciting coil 3 far from diversion pipe 1 by clamp nut 33.
For convenience of the location and installation of magnetic shield 8, restraining position ring block plate 52, upper shielding case 81 and lower shielding case are set on the inside of fixed ring flat-plate 5
The both ends of 82 length directions are overlapped on limit ring flat-plate 52, for realizing the position limit to upper shielding case 81 and lower shielding case 82
It is fixed, and can be improved the stable connection of the two.
The implementation principle of the present embodiment are as follows: the setting of electrode shield 6 plays the role of primary protection to measuring electrode 2, reduces
The phenomenon that measuring electrode 2 is exposed or water inlet is breaking；Fixed ring flat-plate 5 is fixed on 1 outer wall of diversion pipe in advance, in measuring electrode 2 and encourages
After the installation is completed, shell 4 is welded between two fixed ring flat-plates 5 for magnetic coil 3, is realized to magnet exciting coil 3 and measuring electrode 2
Sealing protection.
The embodiment of present embodiment is the preferred embodiment of the utility model, and not limitation is originally practical new according to this
The protection scope of type, therefore: the equivalence changes that all structures, shape, principle according to the utility model are done should all be covered by practical
Within novel protection scope.
Claims (8)
1. a kind of electromagnetic flowmeter, including diversion pipe (1), two measuring electrodes (2) and two magnet exciting coils (3), the measurement
Electrode (2) and magnet exciting coil (3) are alternately fixed on diversion pipe (1) tube wall along the circumferential axial symmetry of diversion pipe (1), the water conservancy diversion
It is provided with lining (11) in pipe (1), the both ends of diversion pipe (1) length direction are respectively arranged with side flange (12)；
It is characterized by: diversion pipe (1) outer wall is equipped with two fixed ring flat-plates on the inside of two side flanges (12)
(5), the measuring electrode (2) and magnet exciting coil (3) are arranged between two fixed ring flat-plates (5), on the outside of the diversion pipe (1)
It is provided with shell (4), the both ends of shell (4) length direction are fixed at the top of the fixation ring flat-plate (5) of two sides respectively；
It is additionally provided with magnetic shield (8) between two fixed ring flat-plates (5), magnetic shield (8) setting is in shell (4)
And it surround and is wrapped in measuring electrode (2) and magnet exciting coil (3) outside.
2. a kind of electromagnetic flowmeter according to claim 1, it is characterised in that: the magnet exciting coil (3) passes through coil holder
(31) it is fixed on diversion pipe (1) outer wall, the fixed cylinder for magnet exciting coil (3) socket is provided in the middle part of the coil holder (31)
(311), the fixed cylinder (311) is connected with clamp nut (33), the clamp nut far from the threaded one end of coil holder (31)
(33) via hole (331) are coaxially offered.
3. a kind of electromagnetic flowmeter according to claim 2, it is characterised in that: the magnetic shield (8) includes detachable
The upper shielding case (81) and lower shielding case (82) of connection offer confession on the upper shielding case (81) and lower shielding case (82) respectively
The through-hole (83) that electrode cable and magnet exciting coil (3) cable pass through.
4. a kind of electromagnetic flowmeter according to claim 3, it is characterised in that: the upper shielding case (81) and lower shielding case
(82) length direction both ends are interlaced and offer locking hole, and the upper shielding case (81) and lower shielding case (82) are described in
Clamp nut (33) abutting is fixed on fixed cylinder (311) roof, and the clamp nut (33) passes through locking hole and and fixed cylinder
(311) it is threadedly coupled.
5. a kind of electromagnetic flowmeter according to claim 4, it is characterised in that: two fixed ring flat-plate (5) inner walls are set
It is equipped with for upper shielding case (81), overlapped at lower shielding case (82) both ends stop collar (52).
6. a kind of electromagnetic flowmeter according to claim 1, it is characterised in that: shell (4) end is provided with sawtooth
Shape interconnecting piece (41), fixed ring flat-plate (5) the roof inside are provided with the fixed part for engaging and being welded and fixed with interconnecting piece (41)
(51)。
7. a kind of electromagnetic flowmeter according to claim 6, it is characterised in that: the fixed part (51) and interconnecting piece (41)
Junction be provided with reinforcing ring (7), reinforcing ring (7) both ends are consolidated with fixed ring flat-plate (5) and the welding of shell (4) outer wall respectively
It is fixed.
8. a kind of electromagnetic flowmeter according to claim 7, it is characterised in that: the reinforcing ring (7) is embedded in shell (4)
With the junction of fixed ring flat-plate (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822060668.1U CN209055152U (en) | 2018-12-07 | 2018-12-07 | A kind of electromagnetic flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822060668.1U CN209055152U (en) | 2018-12-07 | 2018-12-07 | A kind of electromagnetic flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209055152U true CN209055152U (en) | 2019-07-02 |
Family
ID=67054941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822060668.1U Active CN209055152U (en) | 2018-12-07 | 2018-12-07 | A kind of electromagnetic flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209055152U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110260938A (en) * | 2019-07-05 | 2019-09-20 | 山东齐芯智控科技有限公司 | A kind of electromagnetic flowmeter |
-
2018
- 2018-12-07 CN CN201822060668.1U patent/CN209055152U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110260938A (en) * | 2019-07-05 | 2019-09-20 | 山东齐芯智控科技有限公司 | A kind of electromagnetic flowmeter |
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