CN203772782U - Double-sheet type measurement test block structure inductance probe for measuring metal corrosion rate - Google Patents

Double-sheet type measurement test block structure inductance probe for measuring metal corrosion rate Download PDF

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Publication number
CN203772782U
CN203772782U CN201420076910.3U CN201420076910U CN203772782U CN 203772782 U CN203772782 U CN 203772782U CN 201420076910 U CN201420076910 U CN 201420076910U CN 203772782 U CN203772782 U CN 203772782U
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probe
test piece
core glass
glass sintering
terminal
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CN201420076910.3U
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Chinese (zh)
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郑丽群
李欣波
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Shenyang Zkwell Corrosion Control Technology Co Ltd
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Shenyang Zkwell Corrosion Control Technology Co Ltd
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Abstract

The utility model discloses a double-sheet type measurement test block structure inductance probe for measuring the metal corrosion rate. The double-sheet type measurement test block structure inductance probe comprises a probe end cover, an eight-core glass sintered isolation terminal, temperature compensation test blocks, a probe body, a twelve-core glass sintered lead terminal and material measurement test blocks, wherein the eight-core glass sintered isolation terminal consists of a stainless steel terminal body and eight alloy wires through glass sintering; eight pins of two measurement test blocks are respectively welded with the eight alloy wires of a terminal on one side of the eight-core glass sintered isolation terminal; the two temperature compensation test blocks are respectively welded with a corresponding terminal on the other side of the eight-core glass sintered isolation terminal; the corresponding terminals among leads at the other side end, the corresponding pins of the temperature compensation test blocks and leads of the twelve-core glass sintered lead terminal are welded through metal leads so as to integrally form a double-test-block measurement loop. By the adoption of a unique structure in which the measurement test blocks are isolated from the compensation test blocks, the service life of the probe is greatly prolonged, and the safety coefficient, the operability and the adaptability of the probe are greatly improved.

Description

A kind of biplate shape of measuring rate of metal corrosion is measured test block structure inductance probe
Technical field
The utility model relates to measures metal erosion technical field, particularly relates to a kind of biplate shape of measuring rate of metal corrosion and measures test block structure inductance probe.
Background technology
Metal erosion all can cause great loss to national economy every year, the particularly corrosion of Petrochemical Enterprises equipment Pipe-Line, except causing direct loss because of corrosion, also can cause great indirect loss because the shut-down (breakdown) mainteance that causes of corrosion etc. affects refinery output, the major safety risks and the security incident that due to corrosion of piping, cause in addition also can not be ignored.It is important means of Petrochemical Enterprises solving device etching problem that thereby the corrosion rate of monitoring pipeline and equipment is suddenly early taked the precautionary measures according to measurement result, inductance probe measuring technique is to measure at present a kind of effective ways of metal erosion, with the measurement test piece with the identical material of pipeline and pipeline, be together placed in identical corrosion environment, by instrument monitoring, measure the corrosion of test piece with the corrosion rate of this approximate replacement pipeline.
Domestic and international existing product is single test piece, straight-through sealing adhesive process measured at present, as shown in Figure 3, probe interior selects fluid sealant 13 to fill, except measuring test piece 11 outer faces contacts with measured medium and be corroded, compensate test piece 12, all components and parts entire bodies of probe interior such as 14 that go between all fill with fluid sealant.In a large amount of application, find that this product has certain limitation, specific as follows:
1. because one is measured test piece and can only use a kind of metal material, so single test piece probe of measuring can only be measured the corrosion rate of a kind of material in corrosion environment, and for the needs of technique and selection, the corrosion rate of using two measurement test piece inductance probe simultaneously to measure two kinds of materials at a measurement point has a lot of demands, one of them measures test piece for monitoring the corrosion of pipeline, and another is measured test piece and is used for adjusting production technology or selection.As shown in Figure 4, on the contrary, by prior art, achieve the above object and need on pipeline 16, drive two probes 15, one of two holes installations, cost waste, the 2nd, in high temperature conduit with pressure, many perforates itself can cause secondary potential safety hazard again.
2. there is certain technical matters and potential safety hazard in the through type sealing adhesive process shown in Fig. 3.1. measure test piece, compensation test piece, wlding, wire and be in a kind of fluid sealant environment together, because being washed away by medium the concussion being caused, coefficient of thermal expansion difference and probe affect, make medium be easy to enter in probe body along sealing boundary penetration, cause the corrosion of wire and compensation test piece, compensation test piece is only for temperature compensation, once compensation test piece will cause probe to lose efficacy because corrosion causes the variation of its resistance, particularly medium, in the measurement environment of high flow rate, also can cause probe to lose efficacy in a large number even if having the probe of mature technology for many years abroad at short notice.Once 2. medium osmosis enters in probe body, the sealing wire head of probe afterbody is unique one safety curtain, the high pressure in the face of the high temperature of several Baidu, hundreds of kilogram and high containing situations such as poisonous mediums under, safety coefficient is abundant not, moreover current newly-built oil refining enterprise, nearly 4 years its time between overhauls(TBO), and probe is can not dismounting with pressure in the situation that, must wait auto levelizer to stop work and just can change probe, so more should strengthen the safety coefficient of probe.3. probe is the longest reaches 1 meter, and through type sealing is difficult to guarantee entire body sealing even compact in technique.
3. the existing application of double tubular inductance probe measuring technique now, can reach the object of simultaneously measuring two kinds of material corrosion at a tapping point, but the tubulose of two kinds of unlike materials is measured test piece and is welded together, have in the situation of measuring electrolyte medium, two kinds of different because of metal electrode potentials are different, can produce bimetallic corrosion, probe was lost efficacy very soon, so be generally only limited to the in the situation that of high temperature nonelectrolyte, use.There is not bimetallic corrosion in biplate shape inductance probe.
Utility model content
The technical problems to be solved in the utility model is, provide a kind of biplate shape of measuring rate of metal corrosion to measure test block structure inductance probe, can with a probe, can measure the corrosion rate of two metal testing plates a measured medium monitoring point simultaneously, and the measurement test piece of two kinds of materials is isolated completely, avoid producing bimetallic corrosion under low-temperature electrolytes environment, reduce the secondary potential safety hazard causing because of many installation probes, adopt simultaneously and measure test piece and the unique texture that compensates test piece isolation, make the serviceable life of probe, safety coefficient, operability and applicability all greatly strengthen, cost-saving.
The technical scheme adopting is:
Measure the biplate shape of rate of metal corrosion and measure a test block structure inductance probe, comprise probe end cap, eight core glass sintering isolation terminals, temperature compensation test piece, metal lead wire, heat conducting tank sealing, probe body, twelve-core glass sintering lead terminal, the test piece of the first Materials Measurement, fluid sealant, the test piece of the second Materials Measurement.Eight described core glass sintering isolation terminals fixedly consist of glass sintering technology tainless terminal body and eight B alloy wires, and B alloy wire and metal material terminal body seal by glass sintering, and high temperature resistant, high pressure resistant, corrosion-resistant.Two eight pins measuring test pieces that are comprised of the test piece of the first Materials Measurement and the test piece of the second Materials Measurement weld with eight B alloy wires of a side terminal of eight core glass sintering isolation terminals respectively, two the temperature compensation test pieces corresponding with two measurement test pieces respectively with the opposite side corresponding terminal welding of eight core glass sintering isolation terminals.Another side lead-in wire of described eight core glass sintering isolation terminals, the respective pin of temperature compensation test piece, the corresponding terminal between the lead-in wire of twelve-core glass sintering lead terminal weld by metal lead wire, the whole pair test piece measuring circuits that form.Described probe end cap, eight core glass sintering isolation terminals, probe body, twelve-core glass sintering lead terminal are by being welded together.
Above-mentioned probe end cap and eight core glass sintering isolation terminals weld together, and together form measurement test piece cavity, filling with sealant in described measurement test piece cavity with two measurement test pieces that the test piece of the first Materials Measurement and the test piece of the second Materials Measurement form.
After eight above-mentioned core glass sintering isolation terminals, probe body, the welding of twelve-core glass sintering lead terminal, form the closed cavity of an insulation blocking temperature compensation test piece, in the closed cavity of described insulation blocking temperature compensation test piece, fill heat conducting tank sealing.
The utlity model has following beneficial effect:
1. a perforate mounting points on tested pipeline is used two measurement test piece inductance probe can measure the corrosion rate of two kinds of metal materials simultaneously, raises the efficiency, cost-saving, reduces the secondary potential safety hazard causing because of many installation probes;
2. the measurement test piece of two kinds of materials is in complete isolation, and can be applied to low temperature has electrolytical applied environment, avoids producing bimetallic corrosion.
3. measure test piece and compensation test piece isolation, make to compensate test piece in absolute stability state, at measured medium, penetrate into behind the inner space of measuring test piece place, can not make probe lose efficacy.
4. the cavity of measuring test piece place is little, adopts high temperature resistant, high pressure resistant, corrosion resistant high quality seal glue, and glue consumption is few, and good sealing effect is workable.And the large cavity at compensation test piece place is used the potting glue of heat conduction and maneuverable run-of-the-mill.
5. separate cavities structure makes serviceable life and the safety coefficient multiplication of probe.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the left side view of Fig. 1.
Fig. 3 is existing single test piece general pellet inductor probe schematic diagram of measuring.
Fig. 4 is common sheet inductance probe and biplate shape inductance probe contrast application schematic diagram.
Embodiment
A kind of biplate shape of measuring rate of metal corrosion is measured test block structure inductance probe, shown in Fig. 1 and Fig. 2, comprise probe end cap 1, eight core glass sintering isolation terminals 2, temperature compensation test piece 3, metal lead wire 4, heat conducting tank sealing 5, probe body 6, twelve-core glass sintering lead terminal 7, the first Materials Measurement test piece 8, fluid sealant 9, the second Materials Measurement test piece 10.Eight described core glass sintering isolation terminals 2 fixedly consist of glass sintering technology tainless terminal body and eight B alloy wires, and B alloy wire and metal material terminal body seal by glass sintering, and high temperature resistant, high pressure resistant, corrosion-resistant.Two eight pins measuring test pieces that are comprised of the first Materials Measurement test piece 8 and the second Materials Measurement test piece 10 weld with eight B alloy wires of a side terminal of eight core glass sintering isolation terminals 2 respectively, two the temperature compensation test pieces corresponding with two measurement test pieces respectively with the opposite side corresponding terminal welding of eight core glass sintering isolation terminals 2.Another side lead-in wire of described eight core glass sintering isolation terminals 2, the respective pin of temperature compensation test piece 3, the corresponding terminal between the lead-in wire of twelve-core glass sintering lead terminal 7 weld by metal lead wire 4, the whole pair test piece measuring circuits that form.Make instrument in twelve-core glass sintering lead terminal outer end, can measure two corrosion thinning signals of measuring test piece.Described probe end cap 1, eight core glass sintering isolation terminals 2, probe body 6, twelve-core glass sintering lead terminal 7 main bodys are corrosion-resistant metal materials, by argon arc welding, weld together.Described probe end cap 1 and eight core glass sintering isolation terminals 2 weld together, and together form measurement test piece cavity with two measurement test pieces that the first Materials Measurement test piece 8 and the second Materials Measurement test piece 10 form, in described measurement test piece cavity, fill high temperature resistant, high pressure resistant, corrosion resistant high quality seal glue 9(and see Fig. 2).After described eight core glass sintering isolation terminals 2, probe body 6,7 welding of twelve-core glass sintering lead terminal, form the closed cavity of an insulation blocking temperature compensation test piece, in the closed cavity of described insulation blocking temperature compensation test piece, fill heat conducting tank sealing 5.

Claims (3)

1. a biplate shape of measuring rate of metal corrosion is measured test block structure inductance probe, comprise probe end cap (1), eight core glass sintering isolation terminals (2), temperature compensation test piece (3), metal lead wire (4), heat conducting tank sealing (5), probe body (6), twelve-core glass sintering lead terminal (7), the first Materials Measurement test piece (8), fluid sealant (9), the second Materials Measurement test piece (10), it is characterized in that eight described core glass sintering isolation terminals (2) consist of glass sintering corrosion-resistant metal materials terminal body and eight B alloy wires, B alloy wire and metal material are that terminal body is passed through glass sintering seal isolation and insulated, two eight pins measuring test pieces that formed by the first Materials Measurement test piece (8) and the second Materials Measurement test piece (10) respectively with eight B alloy wires welding of a side terminal of eight core glass sintering isolation terminals (2), two the temperature compensation test pieces (3) corresponding with two measurement test pieces are welded with the opposite side corresponding terminal of eight core glass sintering isolation terminals (2) respectively, another side lead-in wire of described eight core glass sintering isolation terminals (2), the respective pin of temperature compensation test piece (3), corresponding terminal between the lead-in wire of twelve-core glass sintering lead terminal (7) is by metal lead wire (4) welding, the whole pair test piece measuring circuits that form, described probe end cap (1), eight core glass sintering isolation terminals (2), probe body (6), twelve-core glass sintering lead terminal (7) is by being welded together.
2. a kind of biplate shape of measuring rate of metal corrosion according to claim 1 is measured test block structure inductance probe, it is characterized in that described probe end cap (1) and eight core glass sintering isolation terminals (2) weld together, and together form measurement test piece cavity, filling with sealant (9) in described measurement test piece cavity with two measurement test pieces that the first Materials Measurement test piece (8) and the second Materials Measurement test piece (10) form.
3. a kind of biplate shape of measuring rate of metal corrosion according to claim 1 is measured test block structure inductance probe; it is characterized in that after eight described core glass sintering isolation terminals (2), probe body (6), twelve-core glass sintering lead terminal (7) welding; form the closed cavity of an insulation blocking temperature compensation test piece, in the closed cavity of described insulation blocking temperature compensation test piece, fill heat conducting tank sealing (5).
CN201420076910.3U 2014-02-24 2014-02-24 Double-sheet type measurement test block structure inductance probe for measuring metal corrosion rate Active CN203772782U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104931413A (en) * 2015-06-15 2015-09-23 沈阳中科韦尔腐蚀控制技术有限公司 Inductance probe with double-tube-shaped structure
CN108918408A (en) * 2018-07-20 2018-11-30 濮阳市普柯特腐蚀科技有限公司 A kind of resistance probe and preparation method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104931413A (en) * 2015-06-15 2015-09-23 沈阳中科韦尔腐蚀控制技术有限公司 Inductance probe with double-tube-shaped structure
CN108918408A (en) * 2018-07-20 2018-11-30 濮阳市普柯特腐蚀科技有限公司 A kind of resistance probe and preparation method thereof

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