CN210736897U - Multifunctional monitoring probe for pipeline cathode protection - Google Patents

Abstract

The utility model discloses a belong to monitor technical field, specifically be a multi-functional monitor of pipeline cathodic protection, include: insulating casing, mount, little infiltration end cap, polarization test block, from corrosion test block and little infiltration end cap, insulating casing's top from left to right in proper order fixed mounting have auxiliary electrode A, reference electrode terminal and auxiliary electrode B, insulating casing's lateral wall top fixed mounting the mount, insulating casing's inner wall top fixed mounting little infiltration end cap, the bottom fixed mounting of little infiltration end cap has the pellicle, the inner wall top fixed mounting of little infiltration end cap has permanent solid reference electrode, permanent solid reference electrode with it has the saturated solution layer to fill between the little infiltration end cap, this utility model discloses a carry out effectual fixing to the probe, prevent that the position from taking place the skew, simultaneously can be fine monitor and diagnostic combined effect.

Description

Multifunctional monitoring probe for pipeline cathode protection

Technical Field

The utility model relates to a monitor probe technical field specifically is a multi-functional monitor probe of pipeline cathodic protection.

Background

With the development of economy, the urban pipe network and the oil and gas long-distance transmission pipeline which are high-efficiency safe energy transmission means are more and more widely applied. Corrosion is an important factor affecting the reliability and service life of pipeline transportation systems, corrosion damage often causes huge economic loss and serious social consequences, and in order to reduce the corrosion risk of buried long-distance pipelines, cathode protection is widely applied as an effective means for controlling corrosion. Various electrical parameters of the cathodic protection operation of the pipeline can reflect the effectiveness of corrosion control, and often provide indirect clues for analyzing the root cause of corrosion. In order to detect the cathodic protection operating state of the pipeline, the potential on the pipeline needs to be measured. The basic method for measuring the pipeline potential mainly comprises the steps of arranging a reference electrode around a pipeline and detecting the potential difference between the pipeline and the reference electrode.

The corrosion damage often causes huge economic loss and serious social consequences due to important factors affecting the reliability and the service life of the pipeline transportation system. At present, aiming at the problem of corrosion monitoring of long-distance pipelines, the corrosion rate of the pipelines is usually monitored by using the existing corrosion rate monitoring device through a monitoring hole method, a hanging piece weight loss method, a resistance probe method, an electrochemical method, an electromagnetic induction method and other corrosion monitoring methods.

Monitoring probe among the prior art is along with long-time influence monitoring probe takes place the displacement easily, leads to the deviation to appear in the result of monitoring, can not reach effectual guard action, and current monitoring probe is mostly simple monitoring, can not realize effectual independent diagnosis that carries on, consequently needs a urgent need to develop a multi-functional monitoring probe of pipeline cathodic protection.

SUMMERY OF THE UTILITY MODEL

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract of the specification and the title of the application to avoid obscuring the purpose of this section, the abstract of the specification and the title of the application, and such simplifications or omissions are not intended to limit the scope of the invention.

The utility model discloses a problem that exists in the multi-functional monitoring probe of above-mentioned and/or current pipeline cathodic protection has been proposed.

Therefore, the utility model aims at providing a multi-functional monitoring probe of pipeline cathodic protection can effectually carry out effectual fixed to the probe, prevents that the skew from taking place for the position, simultaneously can be fine monitor and diagnose.

For solving the technical problem, according to the utility model discloses an aspect, the utility model provides a following technical scheme:

a multi-functional monitoring probe for cathodic protection of a pipeline, comprising: insulating casing, mount, little infiltration end cap, polarization test block, from corrosion test block and little infiltration end cap, insulating casing's top from left to right in proper order fixed mounting have auxiliary electrode A, reference electrode terminal and auxiliary electrode B, insulating casing's lateral wall top fixed mounting the mount, insulating casing's inner wall top fixed mounting the little infiltration end cap, the bottom fixed mounting of little infiltration end cap has the pellicle, the inner wall top fixed mounting of little infiltration end cap has permanent solid reference electrode, permanent solid reference electrode with it has the saturated solution layer to pack between the little infiltration end cap, it has the electrolysis liquid layer to pack between little infiltration end cap and the insulating casing, insulating casing's bottom left side fixed mounting the polarization test block, the bottom right side fixed mounting of insulating casing the self-corrosion test block, the micro-seepage end is fixedly installed at the central position of the bottom of the insulating shell, the auxiliary electrode A is electrically connected with the polarization test piece through a second cable, the auxiliary electrode B is electrically connected with the self-corrosion test piece through a third cable, and the reference electrode binding post is electrically connected with the permanent solid reference electrode through a first cable.

As a preferred scheme of the multi-functional monitoring probe of pipeline cathodic protection, wherein: a plurality of mounting holes are symmetrically formed in the fixing frame, and the hole diameters of the mounting holes are the same.

As a preferred scheme of the multi-functional monitoring probe of pipeline cathodic protection, wherein: the saturated solution layer is a saturated copper sulfate or zinc salt solution layer.

As a preferred scheme of the multi-functional monitoring probe of pipeline cathodic protection, wherein: the micro-seepage end is a microporous ceramic semipermeable membrane.

As a preferred scheme of the multi-functional monitoring probe of pipeline cathodic protection, wherein: the insulating shell is a polytetrafluoroethylene plastic shell.

Compared with the prior art: utilize mounting hole and fastening bolt on the mount to fix, guaranteed that the holistic position of insulating casing is unchangeable, the effectual position that has prevented insulating casing takes place the skew, utilizes polarization test block and applys an impressed current to corroded metal structure surface from the corrosion test block simultaneously, is become the negative pole by the protection architecture to make the electron migration that the metal corrosion takes place obtain inhibiting, avoid or weaken the emergence of corruption, realize monitoring and diagnosis.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and detailed embodiments, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor. Wherein:

fig. 1 is a schematic structural view of the present invention;

fig. 2 is a top view of the structure of the present invention.

In the figure: 100 insulating shell, 110 auxiliary electrode A, 120 reference electrode binding post, 130 auxiliary electrode B, 140 electrolyte layer, 200 fixing frame, 210 mounting hole, 300 micro-permeation end cap, 310 semi-permeable membrane, 320 permanent solid reference electrode, 330 saturated solution layer, 340 first cable, 400 polarization test piece, 410 second cable, 500 self-corrosion test piece, 510 third cable, 600 micro-permeation end cap.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways than those specifically described herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Next, the present invention will be described in detail with reference to the schematic drawings, and in the detailed description of the embodiments of the present invention, for convenience of explanation, the sectional view showing the device structure will not be enlarged partially according to the general scale, and the schematic drawings are only examples, and should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

The utility model provides a multi-functional monitoring probe of pipeline cathodic protection for effectually carrying out effectual fixed to the probe, prevent that the position from taking place the skew, monitoring and diagnosis that simultaneously can be fine please refer to figure 1, include: an insulating housing 100, a fixing frame 200, a micro-permeation end cap 300, a polarization test piece 400, a self-corrosion test piece 500 and a micro-permeation end cap 600,

referring to fig. 1 and 2, the insulating housing 100 has an auxiliary electrode a110, a reference electrode binding post 120 and an auxiliary electrode B130, specifically, the top of the insulating housing 100 is fixedly mounted with the auxiliary electrode a110, the reference electrode binding post 120 and the auxiliary electrode B130 sequentially through bolts from left to right, an electrolyte layer 140 is filled between the micro-permeation end cap 300 and the insulating housing 100, the insulating housing 100 is used for fixedly mounting a fixing frame 200, the micro-permeation end cap 300, a polarization test piece 400, a self-corrosion test piece 500 and a micro-permeation end cap 600, and the insulating housing 100 is a circular polytetrafluoroethylene housing;

referring to fig. 1 and 2 again, the fixing frame 200 has a mounting hole 210, the fixing frame 200 is mounted on the outer side wall of the insulating housing 100, specifically, the fixing frame 200 is integrally formed on the outer side wall of the insulating housing 100, four mounting holes are symmetrically formed on the fixing frame 200, the four mounting holes have the same aperture, and the fixing frame 200 is made of ptfe plastic;

referring to fig. 1 again, the micro-permeation end cap 300 has a semi-permeable membrane 310, a permanent solid reference electrode 320 and a saturated solution layer 330, the micro-permeation end cap 300 is installed on the top of the inner wall of the insulating housing 100, specifically, the micro-permeation end cap 300 is integrally formed on the top of the inner wall of the insulating housing 100, the semi-permeable membrane 310 is installed at the bottom of the micro-permeation end cap 300 in a clamped manner, the permanent solid reference electrode 320 is inserted into the top of the inner wall of the micro-permeation end cap 300, the saturated solution layer 330 is filled between the permanent solid reference electrode 320 and the micro-permeation end cap 300, the saturated solution layer 330 is a saturated copper sulfate or zinc salt solution layer, the reference electrode binding post 120 is electrically connected with the permanent solid reference electrode 320 through a first cable 340, and the;

referring to fig. 1 again, the polarization test piece 400 has a second cable 410, the polarization test piece 400 is installed at the left side of the bottom of the insulating housing 100, specifically, the polarization test piece 400 is installed at the left side of the bottom of the insulating housing 100 in a clamping manner, the auxiliary electrode a110 is electrically connected with the polarization test piece 400 through the second cable 410, and the polarization test piece 400 is circular;

referring to fig. 1 again, the self-corrosion test strip 500 is mounted on the right bottom side of the insulating housing 100, specifically, the self-corrosion test strip 500 is mounted on the right bottom side of the insulating housing 100 in a clamping manner, the auxiliary electrode B130 is electrically connected to the self-corrosion test strip 500 through a third cable 510, and the self-corrosion test strip 500 is circular;

referring to fig. 1 again, the micro-permeation end cap 600 is installed at the bottom center of the insulating housing 100, specifically, the micro-permeation end cap 600 is installed at the bottom center of the insulating housing 100 in a clamping manner, and the micro-permeation end cap 600 is a microporous ceramic semi-permeable membrane.

In specific use, as needs the utility model discloses at first utilize mounting hole 210 and fastening bolt on the mount 200 to fix at the in-process that uses, it is unchangeable to have guaranteed insulating casing 100 holistic position, the skew has taken place for insulating casing 100's effectual position that has prevented, utilize auxiliary electrode A110 to carry out the circular telegram for polarization test block 400 simultaneously, utilize reference electrode terminal 120 to carry out the circular telegram for permanent solid reference electrode 320, utilize auxiliary electrode B130 to carry out the circular telegram for from corrosion test block 500, utilize polarization test block 400, carry out the transmission from corrosion test block 500 and little infiltration end 600 and apply an impressed current to being corroded metal structure thing surface, become the negative pole by the protection structure thing, thereby make the electron migration that the metal corrosion takes place obtain inhibiting, avoid or weaken the emergence of corrosion.

The number of the mounting holes 210 is not limited to the specific number described in the embodiment, and those skilled in the art can increase or decrease the number as required on the premise that the device can perform its fixing function.

While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the various features of the disclosed embodiments of the present invention can be used in any combination with each other, and the non-exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims (5)

1. A multifunctional monitoring probe for cathodic protection of a pipeline is characterized by comprising: insulating casing (100), mount (200), little infiltration end cap (300), polarization test block (400), from corrosion test block (500) and little infiltration end cap (600), the top of insulating casing (100) from left to right in proper order fixed mounting have auxiliary electrode A (110), reference electrode terminal (120) and auxiliary electrode B (130), the lateral wall top fixed mounting of insulating casing (100) mount (200), the inner wall top fixed mounting of insulating casing (100) little infiltration end cap (300), the bottom fixed mounting of little infiltration end cap (300) has semi-permeable membrane (310), the inner wall top fixed mounting of little infiltration end cap (300) has permanent solid reference electrode (320), permanent solid reference electrode (320) with it has saturated solution layer (330) to fill between little infiltration end cap (300), little infiltration end cap (300) with it has electrolyte layer (140) to fill between insulating casing (100), the bottom left side fixed mounting of insulating casing (100) polarize test block (400), the bottom right side fixed mounting of insulating casing (100) from corrosion test block (500), the bottom central point fixed mounting of insulating casing (100) ooze end (600) a little, auxiliary electrode A (110) through second cable (410) with polarize test block (400) looks electrical connection, auxiliary electrode B (130) through third cable (510) with from corrosion test block (500) electrical connection, reference electrode terminal (120) through first cable (340) with permanent solid reference electrode (320) electrical connection.

2. The multifunctional monitoring probe for the cathodic protection of the pipeline as claimed in claim 1, wherein said fixing frame (200) is symmetrically provided with a plurality of mounting holes, and the aperture of said mounting holes is the same.

3. The multifunctional monitoring probe for pipeline cathodic protection as recited in claim 1, wherein said saturated solution layer (330) is a saturated copper sulfate or zinc salt solution layer.

4. The multifunctional monitoring probe for pipeline cathodic protection according to claim 1, characterized in that the micro-permeable end-cap (600) is a microporous ceramic semi-permeable membrane.

5. The multifunctional monitoring probe for cathodic protection of pipelines according to claim 1, characterized in that said insulating casing (100) is a polytetrafluoroethylene casing.

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