CN219179289U

CN219179289U - Electric field matrix thickness measurement applied electrode device suitable for high-temperature metal pipeline

Info

Publication number: CN219179289U
Application number: CN202223311232.8U
Authority: CN
Inventors: 王新凯; 杨阳; 杨天野; 唐志文; 胡甜甜
Original assignee: SHENYANG ZKWELL CORROSION CONTROL TECHNOLOGY CO LTD
Current assignee: SHENYANG ZKWELL CORROSION CONTROL TECHNOLOGY CO LTD
Priority date: 2022-12-09
Filing date: 2022-12-09
Publication date: 2023-06-13
Anticipated expiration: 2032-12-09

Abstract

The utility model relates to the field of metal corrosion monitoring, and discloses an electric field matrix thickness measuring and electrode applying device suitable for a high-temperature metal pipeline. According to the utility model, the wiring terminal can be stably fixed on the electrode applying mounting column, a good measuring effect is achieved, and the surface of each connecting part of the electrode device can not be oxidized at high temperature by nickel plating or adopting nickel-chromium alloy materials outside the wiring terminal, so that the electrode applying device can be ensured to maintain good conductive performance, and meanwhile, the structure is simple, and the processing and the manufacturing are convenient.

Description

Electric field matrix thickness measurement applied electrode device suitable for high-temperature metal pipeline

Technical Field

The utility model relates to the field of metal corrosion monitoring, in particular to an electric field matrix thickness measuring and applying electrode device suitable for a high-temperature metal pipeline.

Background

There are various methods for online monitoring the corrosion thinning rate in the metal pipeline in real time, such as: the method is characterized in that a corrosion probe is inserted into a pipeline, the corrosion rate of a probe sensitive element in a corrosion medium in the pipeline is measured to replace the corrosion rate of the corrosion medium in the pipeline, or an ultrasonic thickness measuring method is adopted to directly measure the residual wall thickness of the pipeline on the outer wall of a metal pipeline, and the like.

In the electric field matrix thickness measuring technology, the conductive effect at the joint of the application electrode and the application cable directly affects the measuring effect, which is a key factor for measuring accuracy or not, in general, for a low-temperature metal pipeline, after the application electrode is welded or crimped with the metal pipeline, the tail end of the application electrode is reliably connected with the application cable, so that the application effect of exciting current can be ensured, but for a high-temperature metal pipeline, after the high-temperature metal pipeline is conducted to the application electrode, the surface of the application electrode and the surface of a wiring terminal of the application cable are oxidized, so that the conductivity at the joint of the tail end of the application electrode and the application cable is reduced, thereby affecting the measuring effect.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides an electric field matrix thickness measuring and applying electrode device suitable for a high-temperature metal pipeline.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides an electrode assembly is applyed in electric field matrix thickness measurement suitable for high temperature metal pipeline, includes high temperature metal pipeline and binding post, the welding of the axial central line department of high temperature metal pipeline has the electrode fixed block, the internal thread has been seted up on the top of electrode fixed block, the inside of internal thread is provided with and applys the electrode erection column, the outside of applys the electrode erection column is provided with the external screw thread, the outside from the top down threaded connection has first hexagon nut, second hexagon nut, third hexagon nut in proper order, binding post's wiring end cup joints in the outside of applying the electrode erection column, binding post's cold pressing end is connected with high temperature resistant cable's one end.

As a further description of the above technical solution:

the electrode mounting column is a round bar made of nichrome, one end of the electrode mounting column is a flat end face and is provided with a four-face milling wrench opening, the other end of the electrode mounting column is a smooth plane with a tip, and the smooth plane with the tip of the electrode mounting column is contacted with the outer wall of the high-temperature metal pipeline.

As a further description of the above technical solution:

the first hexagonal nut, the second hexagonal nut and the third hexagonal nut are all standard components plated with nickel, and the models are M12 series.

As a further description of the above technical solution:

the electrode fixing block and the high-temperature metal pipeline form a fillet weld when being welded, the welding material of the fillet weld is the same as the high-temperature metal pipeline, the electrode fixing block is a plate material which is the same as the high-temperature metal pipeline, and the electrode fixing block is processed into C-shaped blocks.

As a further description of the above technical solution:

the outer wall of the external thread is in threaded connection with the outer wall of the internal thread.

As a further description of the above technical solution:

the upper surface of binding post's wiring end closely laminates with the lower surface of first hexagon nut, binding post's lower surface of wiring end closely laminates with the upper surface of second hexagon nut.

As a further description of the above technical solution:

and the surface of the wiring terminal is plated with nickel, and the high-temperature-resistant cable is a cloud bus with a nickel plated copper core.

The utility model has the following beneficial effects:

according to the utility model, through the mutual matching of the structures such as the external threads, the electrode fixing block, the first hexagonal nut, the second hexagonal nut and the third hexagonal nut, the wiring terminal can be stably fixed on the electrode applying mounting column, a good measuring effect is achieved, and the surfaces of the connecting parts of the electrode device are not oxidized at high temperature through nickel plating or nickel-chromium alloy materials outside the wiring terminal, so that the electrode applying device can be ensured to maintain good conductivity, and meanwhile, the structure is simple, and the processing and the manufacturing are convenient.

Drawings

FIG. 1 is a front view of an electric field matrix thickness measuring and applying electrode device for high temperature metal pipes according to the present utility model;

fig. 2 is a left side view of an electric field matrix thickness measuring and applying electrode device suitable for a high-temperature metal pipeline according to the present utility model.

Legend description:

1. applying an electrode mounting post; 2. a first hex nut; 3. a second hex nut; 4. a third hex nut; 5. an electrode fixing block; 6. a connection terminal; 7. a high temperature resistant cable 8, fillet weld; 9. a high temperature metal pipe; 10. an internal thread; 11. and (5) external threads.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-2, one embodiment provided by the present utility model is: the utility model provides an electric field matrix thickness measurement is applyed electrode device suitable for high temperature metal pipeline, including high temperature metal pipeline 9 and binding post 6, the welding of the axial central line department of high temperature metal pipeline 9 has electrode fixed block 5, internal thread 10 has been seted up on the top of electrode fixed block 5, conveniently will apply the external screw thread 11 precess internal thread 10 that electrode erection column 1 outside set up, will apply electrode erection column 1 and fix in electrode fixed block 5, the inside of internal thread 10 is provided with and is applyed electrode erection column 1, play the effect of connecting binding post 6, the outside of applys electrode erection column 1 is provided with external screw thread 11, the outside from the top down of external screw thread 11 threaded connection has first hexagonal nut 2 in proper order, second hexagonal nut 3, third hexagonal nut 4, the cooperation of first hexagonal nut 2 and second hexagonal nut 3 is used, can fix the wiring terminal 6, the electric conductivity of convenient junction, the wiring terminal 6's wiring end cup joints the outside of applying electrode erection column 1, the terminal 6 is connected with the one end of high temperature resistant cable 7, with the terminal 6's end and high temperature resistant cable 7 can not reliably separate when measuring the high temperature resistant cable 7, if this can not be with the high temperature resistant cable 7, stability is guaranteed.

The electrode mounting column 1 is made of a round bar made of nichrome, the nichrome has excellent conductivity, oxidation is not easy to occur, meanwhile, the manufacturing cost is relatively low, the cost is saved, one end of the electrode mounting column 1 is a flat end face and is provided with a four-face milling wrench opening, a user can conveniently screw one end of the electrode mounting column 1 into the electrode fixing block 5 through a wrench and other tools, the other end of the electrode mounting column 1 is a smooth plane with a tip, the smooth plane with the tip of the electrode mounting column 1 is contacted with the outer wall of the high-temperature metal pipeline 9, the first hexagonal nut 2, the second hexagonal nut 3 and the third hexagonal nut 4 are all made of standard nickel-plated components, the model is M12 series, the conductivity is enhanced, the oxidation is not easy to occur, the mechanical principle design is met, and the electrode mounting column is firmer when the wiring terminal 6 is fixed, the electrode fixing block 5 and the high temperature metal pipeline 9 are welded to form a fillet weld 8, the welding material of the fillet weld 8 is the same material as the high temperature metal pipeline 9, the effect of error in measurement is avoided, the electrode fixing block 5 is made of a plate material which is the same material as the high temperature metal pipeline 9, and is processed into a C-shaped square, the outer wall of the external thread 11 is in threaded connection with the outer wall of the internal thread 10, the upper surface of the wiring terminal 6 is tightly attached to the lower surface of the first hexagonal nut 2, the lower surface of the wiring terminal 6 is tightly attached to the upper surface of the second hexagonal nut 3, the wiring terminal 6 is fixed, the surface of the wiring terminal 6 is plated with nickel, the surface of the wiring terminal 6 is not oxidized during measurement, the conductivity of the joint of the tail end of the wiring terminal 6 and the high temperature resistant cable 7 is greatly improved, and the measurement effect is improved, the high-temperature-resistant cable 7 is made of copper core nickel-plated mica wires, and has good conductivity and high temperature resistance.

Working principle: in the field implementation, the surface of the electrode applying position on the high-temperature metal pipeline 9 is firstly polished, at the electrode applying position, the vertical edges of the two sides of the electrode fixing block 5 are contacted with the surface of the high-temperature metal pipeline 9 along the axial center line of the high-temperature metal pipeline 9 and then are centered and positioned, then the outer sides of the vertical edges of the two sides of the electrode fixing block 5 are welded with the outer surface of the high-temperature metal pipeline 9, the tip end of the electrode applying installation column 1 is screwed into the internal thread 10 of the electrode fixing block 5, the tip end plane of the electrode applying installation column 1 is tightly propped against the polished outer surface on the high-temperature metal pipeline 9 by being screwed with force, at the moment, the third hexagon nut 4 is screwed from the flat end of the electrode applying installation column 1 by being screwed with force, the lower end face of the third hexagon nut 4 is propped against the upper end face of the electrode fixing block 5, the electrode applying installation column 1 is fixed, the second hexagon nut 3 is screwed in from the flat end of the electrode mounting column 1, the lower end face of the second hexagon nut 3 is screwed to be close to but not in contact with the upper end face of the third hexagon nut 4, the cold-pressed end of the wiring terminal 6 is reliably pressed against the high-temperature-resistant cable 7, the wiring terminal of the wiring terminal 6 is sleeved in from the flat end of the electrode mounting column 1, the lower end face of the wiring terminal 6 is sleeved in contact with the upper end face of the second hexagon nut 3, the first hexagon nut 2 is screwed in from the flat end of the electrode mounting column 1, the lower end face of the first hexagon nut 2 is screwed in contact with the upper end face of the wiring terminal 6, the first hexagon nut 2 and the second hexagon nut 3 are screwed tightly, the wiring terminal 6 is locked by screwing, the wiring terminal 6 can be conveniently fixed on the electrode mounting column 1, the measurement of the internal corrosion thinning rate of the high-temperature metal pipeline 9 is facilitated, the measurement effect is improved, meanwhile, as the materials among the parts are nickel plated or nickel-chromium alloy materials, the surfaces of the joints of the electrode device cannot be oxidized at high temperature, so that the applied electrode device can be ensured to maintain good conductivity, and meanwhile, the electrode device is simple in structure and convenient to process and manufacture.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The utility model provides an electrode assembly is applyed in electric field matrix thickness measurement suitable for high temperature metal pipeline, includes high temperature metal pipeline (9) and binding post (6), its characterized in that: the welding of the axial central line department of high temperature metal pipeline (9) has electrode fixed block (5), internal thread (10) have been seted up on the top of electrode fixed block (5), the inside of internal thread (10) is provided with and applys electrode erection column (1), the outside of applys electrode erection column (1) is provided with external screw thread (11), the outside from the top down of external screw thread (11) threaded connection has first hexagon nut (2), second hexagon nut (3), third hexagon nut (4) in proper order, the wiring end of binding post (6) cup joints in the outside of applys electrode erection column (1), the cold pressing end of binding post (6) is connected with the one end of high temperature resistant cable (7).

2. An electric field matrix thickness measuring and applying electrode device for high temperature metal pipe according to claim 1, wherein: the electrode mounting column (1) is a round bar made of nichrome, one end of the electrode mounting column (1) is a flat end face and is provided with a four-face milling wrench opening, the other end of the electrode mounting column (1) is a smooth plane with a pointed end, and the smooth plane with the pointed end of the electrode mounting column (1) is contacted with the outer wall of the high-temperature metal pipeline (9).

3. An electric field matrix thickness measuring and applying electrode device for high temperature metal pipe according to claim 1, wherein: the first hexagonal nut (2), the second hexagonal nut (3) and the third hexagonal nut (4) are all standard nickel-plated parts, and the models are M12 series.

4. An electric field matrix thickness measuring and applying electrode device for high temperature metal pipe according to claim 1, wherein: the electrode fixing block (5) and the high-temperature metal pipeline (9) form a fillet weld (8) during welding, the welding material of the fillet weld (8) is the same as the high-temperature metal pipeline (9), and the electrode fixing block (5) is a plate material which is the same as the high-temperature metal pipeline (9) and is processed into C-shaped blocks.

5. An electric field matrix thickness measuring and applying electrode device for high temperature metal pipe according to claim 1, wherein: the outer wall of the external thread (11) is in threaded connection with the outer wall of the internal thread (10).

6. An electric field matrix thickness measuring and applying electrode device for high temperature metal pipe according to claim 1, wherein: the upper surface of the wiring terminal (6) is closely attached to the lower surface of the first hexagonal nut (2), and the lower surface of the wiring terminal (6) is closely attached to the upper surface of the second hexagonal nut (3).

7. An electric field matrix thickness measuring and applying electrode device for high temperature metal pipe according to claim 1, wherein: the surface of the wiring terminal (6) is plated with nickel, and the high-temperature-resistant cable (7) is a copper core nickel-plated cloud bus.