CN211112233U - Cathode protection detection device - Google Patents
Cathode protection detection device Download PDFInfo
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- CN211112233U CN211112233U CN201921825976.7U CN201921825976U CN211112233U CN 211112233 U CN211112233 U CN 211112233U CN 201921825976 U CN201921825976 U CN 201921825976U CN 211112233 U CN211112233 U CN 211112233U
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Abstract
The utility model discloses a cathodic protection detection device belongs to and detects technical field. For a storage tank, the bottom of which comprises at least one detection location, a cathodic protection detection device comprising: the device comprises at least one reference tube detection channel, a test rod, a reference electrode and a detection assembly, wherein the detection assembly comprises two detection terminals; one end of the at least one reference tube detection channel corresponds to at least one detection position one by one, and the other end of the at least one reference tube detection channel is communicated with the outside; one detection terminal and the test rod of the detection assembly are connected with the reference electrode, the other detection terminal of the detection assembly is connected with the storage tank, and the reference electrode is configured to be in contact with any detection position under the driving of the test rod. The problem of can't change the reference electrode in the tank bottoms basis to lead to the cathodic protection testing result to be out of alignment is solved, the effect that has improved cathodic protection testing result accuracy has been reached.
Description
Technical Field
The utility model relates to a detect technical field, in particular to cathodic protection detection device.
Background
The cathodic protection is a method capable of effectively preventing the electrochemical corrosion of the outer wall of the bottom of the metal storage tank, the cathodic protection system is detected periodically, and the running state of the cathodic protection system and the corrosion condition of the outer wall of the bottom of the current storage tank can be confirmed through detection data so as to avoid the storage tank corrosion caused by the failure of cathodic protection.
In the related art, a cathode protection detection device comprises a reference electrode, a cable and a detection assembly, wherein the reference electrode is embedded in a basic sand cushion layer at the bottom of a storage tank in advance, one end of the cable is connected with the reference electrode, the other end of the cable is connected with the detection assembly, and a cathode protection system is detected by controlling a switch of the detection assembly.
In the process of implementing the present invention, the inventor finds that the related art has at least the following problems: after the device is used for a long time, the reference electrode is easy to lose effectiveness, but the reference electrode in the device is buried at the bottom of the storage tank and cannot be replaced, so that the cathode protection detection result is incorrect.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a cathodic protection detection device can solve among the correlation technique reference electrode and bury in the storage tank bottom, can't change reference electrode to lead to the problem that the cathodic protection testing result is out of alignment. The technical scheme is as follows:
according to the utility model discloses an aspect provides a cathodic protection detection device for the storage tank, the bottom of storage tank includes at least one detection position, cathodic protection detection device includes:
the device comprises at least one reference tube detection channel, a test rod, a reference electrode and a detection assembly, wherein the detection assembly comprises two detection terminals;
one end of the at least one reference tube detection channel corresponds to the at least one detection position one by one, and the other end of the at least one reference tube detection channel is communicated with the outside;
one detection terminal of the detection assembly and the test rod are connected with a reference electrode, the other detection terminal of the detection assembly is connected with the storage tank, and the reference electrode is configured to be in contact with any detection position under the driving of the test rod.
Optionally, the detection assembly comprises a multimeter.
Optionally, the test rod is detachably connected to the reference electrode.
Optionally, the reference electrode and one end of the test rod are bound and detached by a rope.
Optionally, the reference electrode is connected with one end of the test rod in a snap-fit manner.
Optionally, the at least one detection location is evenly distributed in the base sand bed of the bottom of the storage tank.
Optionally, the test rod is a telescopic test rod.
Optionally, the material of the test rod is plastic.
Optionally, the material of the detection channel of the reference tube is high-density polyethylene.
Optionally, the reference electrode is a copper/copper sulfate reference electrode or a high-purity zinc reference electrode.
The embodiment of the utility model provides a beneficial effect that technical scheme brought is:
the cathode protection detection device comprises at least one reference tube detection channel, a test rod, a reference electrode and a detection assembly, wherein the detection assembly comprises two detection terminals, one end of the at least one reference tube detection channel corresponds to at least one detection position one by one, and the other end of the at least one reference tube detection channel is communicated with the outside; one detection terminal and the test rod of the detection assembly are connected with the reference electrode, the other detection terminal of the detection assembly is connected with the storage tank, and the reference electrode is configured to be in contact with any detection position under the driving of the test rod. When the cathodic protection system is detected, the test rod connected with the reference electrode is inserted into the reference tube detection channel and then detected, the reference electrode is taken out when the test rod is taken out after detection is completed, the problem that the cathodic protection detection result is inaccurate because the reference electrode is buried at the bottom of the storage tank and cannot be replaced in the prior art is solved, and the effect of improving the accuracy of the cathodic protection detection result is achieved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a cathodic protection detection device according to an embodiment of the present invention.
With the above figures, certain embodiments of the present invention have been shown and described in more detail below. The drawings and the description are not intended to limit the scope of the inventive concept in any way, but rather to illustrate the inventive concept by those skilled in the art with reference to specific embodiments.
Detailed Description
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 reference electrode is used as an electrode for reference comparison when various electrode potentials are measured, and plays an important role in the detection process of a cathodic protection system. After the reference electrode is used for a long time, a potential drift phenomenon can be generated, the reference electrode is misaligned due to the change of the potential, so that the detection result is inaccurate, and the reference electrode needs to be calibrated or directly replaced at the moment.
However, in the cathode protection detection device in the prior art, the reference electrode is buried in the basic sand cushion before the storage tank is placed, the storage tank has an unequal diameter of several tens of meters and cannot be moved, so that the reference electrode buried in the basic sand cushion at the bottom of the storage tank cannot be dug out, and therefore the reference electrode cannot be calibrated or replaced, and the accuracy of cathode protection detection cannot be confirmed.
The embodiment of the utility model provides a cathodic protection detection device can solve this problem that appears in the correlation technique.
Fig. 1 is a schematic structural diagram of a cathodic protection detection device according to an embodiment of the present invention. The cathodic protection detection device is used in a storage tank 30, wherein the bottom of the storage tank 30 comprises at least one detection location 20. The cathodic protection detection device 10 may include:
at least one reference tube detection channel 11, a test rod 12, a reference electrode 13, and a detection assembly 14, the detection assembly 14 including two detection terminals (141 and 142).
One end 111 of the at least one reference tube detection channel 11 corresponds to the at least one detection position 20 one by one, and the other end 112 of the at least one reference tube detection channel 11 is communicated with the outside.
One detection terminal 142 of the detection assembly 14 and the test rod 12 are connected to the reference electrode 13, the other detection terminal 141 of the detection assembly 14 is connected to the storage tank 30, and the reference electrode 13 is configured to be brought into contact with any one of the detection positions 20 by the test rod 12.
To sum up, the embodiment of the present invention provides a cathode protection detection device including at least one reference tube detection channel, a test rod, a reference electrode and a detection assembly, wherein the detection assembly includes two detection terminals, one end of the at least one reference tube detection channel corresponds to at least one detection position one by one, and the other end of the at least one reference tube detection channel is communicated with the outside; one detection terminal and the test rod of the detection assembly are connected with the reference electrode, the other detection terminal of the detection assembly is connected with the storage tank, and the reference electrode is configured to be in contact with any detection position under the driving of the test rod. When the cathodic protection system is detected, the test rod connected with the reference electrode is inserted into the reference tube detection channel and then detected, the reference electrode is taken out when the test rod is taken out after detection is completed, the problem that the cathodic protection detection result is inaccurate because the reference electrode is buried at the bottom of the storage tank and cannot be replaced in the prior art is solved, and the effect of improving the accuracy of the cathodic protection detection result is achieved.
Please refer to fig. 1, which shows a schematic structural diagram of a cathodic protection detection device according to an embodiment of the present invention, the cathodic protection detection device may include:
optionally, the at least one test site 20 is evenly distributed in the base sand bed 31 at the bottom of the tank 30. A foundation sand cushion 31 with a height of about one meter is arranged between the bottom of the storage tank 30 and the ground. The cathodic protection detection device is used for detecting the running condition of a cathodic protection system at the bottom of the storage tank 30, the storage tank 30 is generally a large storage tank with the diameter of dozens of meters, the area of the bottom of the storage tank 30 is large, and one detection position cannot comprehensively reflect the corrosion condition at the bottom of the storage tank 30, so that a plurality of detection positions 20 can be arranged for detection. The plurality of detection positions 20 may be uniformly distributed in the basic sand cushion 31 at the bottom of the storage tank 30, and may also be adjusted according to actual conditions, and the embodiment of the present invention is not limited herein. Each detection position is provided with a corresponding reference tube detection channel 11, the reference tube detection channel 11 is buried in a foundation sand cushion layer 31 at the bottom of the storage tank 30, an opening at one end of the reference tube detection channel 11 is connected with a detection position 20 on the outer wall at the bottom of the storage tank 30, the foundation sand cushion layer 31 comprises a retaining wall surrounding the sand cushion layer, and the other end 112 of the reference tube detection channel 11 penetrates through the retaining wall to be communicated with the outside.
Optionally, detection assembly 14 includes multimeter 143. The multimeter is a magnetoelectric instrument with a rectifier and capable of measuring a plurality of electrical parameters such as alternating current, direct current, voltage, resistance and the like. The utility model discloses universal meter 143 that uses in the embodiment of the utility model includes two at least detection terminal (141 and 142), and one detection terminal 142 is connected with reference electrode 13 through the cable, and another detection terminal 141 is connected with one of the at least one detection position of storage tank 30 bottom through the cable and detects position 20. Where a cable is provided at each test location at the bottom of the tank 30, which can be used to connect a multimeter 143 at the time of testing.
Optionally, the material of the detection channel 11 of the reference tube is high density polyethylene. The high-density polyethylene is a nonpolar thermoplastic resin with high crystallinity, has good heat resistance and cold resistance, good chemical stability, higher rigidity and toughness and good mechanical strength. Because the storage tank is heavy, the reference tube detection channel 11 needs to be buried in the basic sand cushion layer 31 at the bottom of the storage tank for a long time, and the reference tube detection channel 11 made of high-density polyethylene has good pressure resistance and is not easy to deform. The reference tube detection channel made of other materials besides metal can be used, and the embodiment of the utility model provides a do not limit here.
Optionally, the material of the testing rod 12 is plastic. Because storage tank 30 bottom area is big, and reference tube test passage 11 is longer usually, therefore test bar 12 uses the plastics material, and is comparatively light, and in-process from reference tube test passage 11's one end again with test bar 12 send into the measuring position 20 of the reference tube test passage 11 other end, the operation is changeed to comparatively light test bar 12. Similarly, the test rod made of other materials besides metal can be used, and the embodiment of the present invention is not limited herein. The detection channel of the metal test rod or the reference tube can interfere with the cathodic protection detection, so that the metal material is avoided as much as possible during selection.
Optionally, the testing rod 12 is a telescopic testing rod. The length of reference pipe test passage 11 usually is several tens meters and varies, the length of test bar 12 should set up to be good at least the longest reference pipe test passage 11, but several tens meters's test bar 12 is difficult to remove and stores, consequently, can set up test bar 12 into retractable test bar, when not detecting, deposit test bar 12 shrink, in the testing process, can be according to the length extension telescopic link of reference pipe test passage, retractable test bar can make the detection operation more convenient.
Alternatively, the test rod 12 is detachably connected to the reference electrode 13. After the cathodic protection detection is completed on the bottom of the storage tank 30, when the test rod 12 is drawn out of the reference tube detection channel 11, the reference electrode 13 is simultaneously taken out by the test rod 12, and the detachable connection facilitates the storage, calibration or replacement of the reference electrode 13 after the detection. In addition, the test rod 12 and the reference electrode 13 may be fixedly connected in other forms, and the embodiment of the present invention is not limited herein.
Alternatively, the reference electrode 13 is bound and detached to and from one end of the test rod 12 with a cord. The storage tank 30 is stored in the field, and the reference electrode 13 and the test rod 12 are bound by using a rope on the premise that the reference electrode 13 cannot be fixed by using an article made of a metal material, so that the operation is very convenient.
Alternatively, the reference electrode 13 is snap-fitted to one end of the test rod 12. Can also set up the buckle with the one end of test bar 12, be connected reference electrode 13 and test bar 12 buckle during testing, loosen the buckle after the test is accomplished, take out reference electrode 13. The buckle can be with the test rod 12 with be the plastics material, also can be other materials except that the metal material, the embodiment of the utility model provides a do not do the injecing here. In addition, reference electrode 13 and test bar 12 can also be other releasable connection such as bolted connection, and specific connection mode can select according to the on-the-spot condition, the embodiment of the utility model discloses do not limit here.
Optionally, the reference electrode 13 is a copper/copper sulfate reference electrode or a high purity zinc reference electrode. The reference electrode 13 is used as an important component in cathodic protection detection, and when a manufacturing material is selected, the reversibility of the electrode is good, and the electrode is not easy to polarize; the electrode potential is relatively stable; the temperature coefficient is small, and the temperature coefficient is convenient to prepare, actually use and maintain and durable. In the embodiment of the utility model provides an in, use copper/copper sulfate reference electrode or high-purity zinc reference electrode, can satisfy above-mentioned all demands, also can use the reference electrode of other materials, the embodiment of the utility model provides a do not limit here.
To sum up, the embodiment of the present invention provides a cathode protection detection device including at least one reference tube detection channel, a test rod, a reference electrode and a detection assembly, wherein the detection assembly includes two detection terminals, one end of the at least one reference tube detection channel corresponds to at least one detection position one by one, and the other end of the at least one reference tube detection channel is communicated with the outside; one detection terminal and the test rod of the detection assembly are connected with the reference electrode, the other detection terminal of the detection assembly is connected with the storage tank, and the reference electrode is configured to be in contact with any detection position under the driving of the test rod. When the cathodic protection system is detected, the test rod connected with the reference electrode is inserted into the reference tube detection channel and then detected, the reference electrode is taken out when the test rod is taken out after detection is completed, the problem that the cathodic protection detection result is inaccurate because the reference electrode is buried at the bottom of the storage tank and cannot be replaced in the prior art is solved, and the effect of improving the accuracy of the cathodic protection detection result is achieved.
The above description is only an alternative embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. A cathodic protection detection device for a storage tank, the bottom of the storage tank including at least one detection location, the cathodic protection detection device comprising:
the device comprises at least one reference tube detection channel, a test rod, a reference electrode and a detection assembly, wherein the detection assembly comprises two detection terminals;
one end of the at least one reference tube detection channel corresponds to the at least one detection position one by one, and the other end of the at least one reference tube detection channel is communicated with the outside;
one detection terminal of the detection assembly and the test rod are connected with a reference electrode, the other detection terminal of the detection assembly is connected with the storage tank, and the reference electrode is configured to be in contact with any detection position under the driving of the test rod.
2. The cathodic protection test device of claim 1, wherein the test assembly comprises a multimeter.
3. The cathodic protection test device of claim 1, wherein the test rod is removably attached to the reference electrode.
4. The cathodic protection test device of claim 3, wherein the reference electrode is tethered to and detached from one end of the test rod.
5. The cathodic protection test device of claim 3, wherein the reference electrode is snap-fit to one end of the test rod.
6. The cathodic protection test device of claim 1, wherein the at least one test location is evenly distributed in the base sand bed at the bottom of the storage tank.
7. The cathodic protection detection device of claim 1, wherein the test rod is a telescoping test rod.
8. The cathodic protection detection device of claim 1, wherein the test rod is made of plastic.
9. The cathodic protection test device of claim 1, wherein the reference tube test channel is made of high density polyethylene.
10. The cathodic protection test device of claim 1, wherein the reference electrode is a copper/copper sulfate reference electrode or a high purity zinc reference electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921825976.7U CN211112233U (en) | 2019-10-28 | 2019-10-28 | Cathode protection detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921825976.7U CN211112233U (en) | 2019-10-28 | 2019-10-28 | Cathode protection detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211112233U true CN211112233U (en) | 2020-07-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921825976.7U Active CN211112233U (en) | 2019-10-28 | 2019-10-28 | Cathode protection detection device |
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| Country | Link |
|---|---|
| CN (1) | CN211112233U (en) |
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- 2019-10-28 CN CN201921825976.7U patent/CN211112233U/en active Active
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