CN201107037Y - Sensor for measuring fretting corrosion or cavitation corrosion depth - Google Patents
Sensor for measuring fretting corrosion or cavitation corrosion depth Download PDFInfo
- Publication number
- CN201107037Y CN201107037Y CNU2007200650861U CN200720065086U CN201107037Y CN 201107037 Y CN201107037 Y CN 201107037Y CN U2007200650861 U CNU2007200650861 U CN U2007200650861U CN 200720065086 U CN200720065086 U CN 200720065086U CN 201107037 Y CN201107037 Y CN 201107037Y
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- lead
- cavitation
- sensor
- wire
- corrosion
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Abstract
The utility model relates to a sensor used for measuring the depth of abrasive corrosion and cavitation corrosion and consists of a body made of an insulating material, one basic lead and a plurality of lead wires respectively connected with the basic lead. Different spacings are formed between the lead wires and the head face of the sensor body. The sensor used for measuring the depth of abrasive corrosion and cavitation corrosion has simple structure yet can achieve an effective measurement of the degree of abrasive corrosion and cavitation corrosion on the surface of an object.
Description
Technical field
The utility model relates to a kind of sensor, specifically is a kind of sensor that is used for measuring abrasion (cavitation corrosion) degree of depth.
Background technology
The cavitation erosion that abrasion destruction that the silt carrying flow effect produces down or high-velocity flow effect produce down, this phenomenon happens occasionally at the concrete surface of outlet structure escape works.The abrasion of shallow-layer (cavitation corrosion) destroys and may not can structure be brought fatal harm, but along with the further aggravation of denuding (cavitation corrosion) degree of depth, may cause the boundary separation of current, forms abominable flow-shape; Perhaps cause the sealing of structural joint to destroy, reinforcing bar exposes etc. variously is unfavorable for constitutionally stable phenomenon.
But also do not have the checkout equipment of appearance at this field at present, correspondingly, China does not still have the classification criterion to outlet structure escape works concrete surface abrasion (cavitation corrosion) destructiveness yet.
In order in time to grasp the proterties of outlet structure escape works concrete surface, need a kind of instrument and can measure the abrasion of concrete surface (cavitation corrosion) destructiveness, especially at the difficult concrete position that directly observes such as hole formula outlet structure escape works, stiling basin, to reach real-time monitoring purposes.
The utility model content:
Problem at above-mentioned existence, the utility model aims to provide a kind of sensor that is used for measuring abrasion (cavitation corrosion) degree of depth, can measure the abrasion destructiveness that the concrete surface of outlet structure escape works produces under the silt carrying flow effect, or the cavitation erosion degree that under the high-velocity flow effect, produces.
For achieving the above object, the utility model provides a kind of sensor that is used for measuring abrasion (cavitation corrosion) degree of depth, comprise body that an insulating material makes, the accurate lead of an intrinsic foundation, and many lead-in wires that are connected with the benchmark lead respectively, there are different spacing successively in described each root lead-in wire and sensor body end face.
Further improve is that respectively go between a section of proximity transducer body end face is parallel to end face.
Further, number of leads is four; Accordingly, the spacing of every lead-in wire and sensor body end face is followed successively by 0mm, 20mm, 50mm, 100mm.
According to technique scheme, detailed operation principle of the present utility model is:
The sensor body is vertically mounted in the measured material, in concrete.Sensor body end face and measured material flush.During original state, all be in connected state between benchmark lead and each lead-in wire: when the measured material surface is denuded or during cavitation erosion, sensor body begins to be denuded or cavitation erosion from the end, along with the deep development that destroys, off-state appears in the lead-in wire of respective depth and benchmark lead, thus can areal survey abrasion or cavitation deepness.That is:
---when first lead-in wire and other lead-in wires and benchmark lead when all being in connected state, abrasion or cavitation corrosion do not take place in the measured material surface;
---when first lead-in wire and the disconnection of benchmark lead, can judge the measured material surface and begin to have taken place abrasion or cavitation corrosion; When first lead-in wire and benchmark lead be in off-state, when second lead-in wire and other lead-in wires all are in connected state with the benchmark lead simultaneously, sensor body abrasion or cavitation corrosion total length D are: 0＜D＜d
1
---when second lead-in wire and benchmark lead be in off-state, when the 3rd lead-in wire and other lead-in wires are in connected state with the benchmark lead simultaneously, sensor body abrasion or cavitation corrosion total length D are: d
1≤ D＜d
1+ d
2
---when i root lead-in wire and benchmark lead be in off-state, when i+1 root lead-in wire is in connected state with the benchmark lead simultaneously, sensor body abrasion or cavitation corrosion total length D are: d
1+ ...+d
I-1≤ D＜d
1+ ...+d
I-1+ d
i
Wherein: d
1The distance (i.e. second distance of first lead-in wire that goes between) of representing second sensor body end face that goes between, d
2The distance of representing the 3rd second lead-in wire that go between, d
iRepresent the go between distance of i root lead-in wire of i+1 root, D represents sensor body abrasion or cavitation corrosion total length.
The rest may be inferred, the described sensor that the utility model provides can be communicated with or off-state with the benchmark lead according to lead-in wire, judge that sensor body is denuded or the length of cavitation corrosion, measure measured material surface abrasion (cavitation corrosion) degree of depth thus, draw the destroyed degree of measured material.
The sensor that is used to measure abrasion or cavitation deepness provided by the utility model is not limited to the field that embodiment provides, applicable to other field, and it is unrestricted to measure abrasion or cavitation deepness, number of leads is unrestricted, the sensor body insulating material is unrestricted, and sensor face shaping and body length are unrestricted.
The utility model is simple in structure, but can realize the measurement to body surface abrasion or cavitation level effectively.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
In Fig. 1:
A---sensor body;
E---benchmark lead;
0,1,2....i+1---expression lead-in wire 0, lead-in wire 1, lead-in wire 2, lead-in wire i+1 respectively;
d
1, d
2... .d
I+1---expression lead-in wire 0 is to lead-in wire 1 respectively, and lead-in wire 1 is to lead-in wire 2, and lead-in wire i is to the distance of lead-in wire i+1.
Embodiment
Be used to measure the sensor of abrasion or cavitation deepness, comprise the body A that an insulating material is made, and the anti scuffing of body A or cavitation corrosion performance near but be not higher than the anti scuffing or the cavitation corrosion performance of measured material, also comprise a benchmark lead E vertical with sensor body A end face, and four lead-in wires 0～3 that are connected with benchmark lead E respectively, and the every proximity transducer body A end face that goes between is parallel to end face for one section, and having different spacing successively with sensor body A end face, its spacing can be determined as requested.As table 1 standard and Fig. 1, d
1=20mm, d
2=30mm, d
3=50mm makes four lead-in wire 0～3 to sensor body A end face distances be followed successively by 0mm, 20mm, 50mm, 100mm.So it is differential that the distance between four lead-in wires and the sensor body A end face forms, realize measured material abrasion or cavitation deepness areal survey.
Wherein, drafted concrete surface abrasion (cavitation corrosion) the destructiveness criteria for classifying (seeing Table 1) in conjunction with a large amount of engineering soundings and data analysis.
Table 1 concrete surface abrasion (cavitation corrosion) destructiveness criteria for classifying
| The destructiveness criteria for classifying | Slightly (I level) | Moderate (II level) | Severe (III level) | Destroy |
| Abrasion (cavitation corrosion) depth d (mm) | 0＜d＜20 | 20≤d＜50 | 50≤d＜100 | D 〉=100 |
| The concrete surface proterties | Coarse or the screed in the shallow top layer of concrete surface is peeled off. | Coarse aggregate exposes, and wear print is arranged.Protective seam is peeled off, and idol has the reinforcing bar exposure. | The a large amount of exposures of reinforcing bar, and wear print is arranged, the reinforcing bar idol is cut off or tensile phenomenon. | The damage of concrete large tracts of land, reinforcing bar is cut off or is broken, and the structural joint sealing destroys. |
According to being communicated with or off-state of each root lead-in wire and benchmark lead E, judge that sensor body A is denuded or the length of cavitation corrosion, measure concrete surface thus and denude or cavitation deepness.And then, judge concrete surface abrasion or cavitation level, and infer surface texture according to above-mentioned standard.
As measure: the 3rd lead-in wire (lead-in wire 2) disconnects with benchmark lead E, and the 4th lead-in wire (lead-in wire 3) is communicated with benchmark lead E simultaneously, and then abrasion or cavitation deepness D are: d
1+ d
2≤ D＜d
1+ d
2+ d
3, promptly denude or cavitation deepness: 50mm≤D＜100mm.According to above table, drawing abrasion or cavitation level is severe (III level), shows a large amount of exposures of reinforcing bar, and wear print is arranged, and the reinforcing bar idol is cut off or tensile phenomenon.
Claims (3)
1, a kind of sensor that is used to measure abrasion or cavitation deepness, it is characterized in that, comprise body that an insulating material makes, the accurate lead of an intrinsic foundation, and many lead-in wires that are connected with the benchmark lead respectively, there are different spacing successively in described each root lead-in wire and sensor body end face.
According to the described sensor that is used to measure abrasion or cavitation deepness of claim 1, it is characterized in that 2, one section of each proximity transducer body end face that goes between is parallel to end face.
3, according to the described sensor that is used to measure abrasion or cavitation deepness of claim 2, it is characterized in that number of leads is four; Accordingly, every lead-in wire one section distance with end face being parallel to the sensor body end face is followed successively by 0mm, 20mm, 50mm, 100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200650861U CN201107037Y (en) | 2007-11-16 | 2007-11-16 | Sensor for measuring fretting corrosion or cavitation corrosion depth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200650861U CN201107037Y (en) | 2007-11-16 | 2007-11-16 | Sensor for measuring fretting corrosion or cavitation corrosion depth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201107037Y true CN201107037Y (en) | 2008-08-27 |
Family
ID=39958844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200650861U Expired - Lifetime CN201107037Y (en) | 2007-11-16 | 2007-11-16 | Sensor for measuring fretting corrosion or cavitation corrosion depth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201107037Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101158578B (en) * | 2007-11-16 | 2012-09-05 | 中国水电顾问集团中南勘测设计研究院 | Sensor used for measuring abrasion wear or cavitation deepness and measurement method |
-
2007
- 2007-11-16 CN CNU2007200650861U patent/CN201107037Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101158578B (en) * | 2007-11-16 | 2012-09-05 | 中国水电顾问集团中南勘测设计研究院 | Sensor used for measuring abrasion wear or cavitation deepness and measurement method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA HYDROPOWER ADVISORY GROUP CENTRAL-SOUTHERN E Free format text: FORMER OWNER: CHANGSHA HUAKE NEW TECHNOLOGY CO., LTD. Effective date: 20091218 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20091218 Address after: No. 9, camphor Road, Yuhua District, Hunan, Changsha Province: 410014 Patentee after: Zhongnan Prospecting Design Inst. China Hydrauelectric Consultant Group Address before: No. 17, camphor Road, Yuhua District, Hunan, Changsha Province: 410014 Patentee before: Changsha Huake New Technology Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20080827 Effective date of abandoning: 20071116 |