CN105372323A - Novel oxide skin calibration series test block - Google Patents
Novel oxide skin calibration series test block Download PDFInfo
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- CN105372323A CN105372323A CN201510892481.6A CN201510892481A CN105372323A CN 105372323 A CN105372323 A CN 105372323A CN 201510892481 A CN201510892481 A CN 201510892481A CN 105372323 A CN105372323 A CN 105372323A
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- organic glass
- test block
- oxide skin
- outer tube
- inner core
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
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- Chemical Kinetics & Catalysis (AREA)
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Abstract
A novel oxide skin calibration series test block relates to the technical field of detection of deposit volume of stainless steel pipe oxide skin. The test block contains an organic glass outer tube, an organic glass inner core, and a stainless steel pipe oxide skin deposit; the organic glass inner core is arranged in the organic glass outer tube; the organic glass inner core is provided with a cutting groove; and the cutting groove is filled with the stainless steel pipe oxide skin deposit. The test block is designed according to different specifications of a boiler heating surface tubes of and different deposit volumes of oxide skin, can effectively calibrate the content of oxide skin in stainless steel pipes with different wall thicknesses, is convenient for visual observation, shortens the testing time and reduces the cost of test.
Description
Technical field
The present invention relates to stainless-steel tube oxide skin accumulating amount detection technique field, be specifically related to the fixed serial test block of a kind of novel oxidized leather mark.
Background technology
Austenite heating surface tube is the overcritical material commonly used with ultra-supercritical boiler superheater and reheater in fuel-burning power plant, because running temperature is high, interior media is high pressure steam, can produce oxide skin when running one section in after date pipe, oxide skin is stacked into a certain degree, has following harm:
1, the oxide skin accumulation that comes off can cause boiler heating surface overtemperature tube burst;
2, oxide skin causes damage to components of steam turbine;
3, the generation of oxide skin easily makes main inlet throttle-stop valve bite, causes unit outage;
4, oxide skin comes off and easily blocks drain pipe, threatens unit safety operation;
5, oxide skin can affect metal heat-exchange effect;
6, oxide skin peels off meeting serious harm water and steam quality.
Along with power consumption constantly rises, under ever-increasing situation is required to power quality, require also more and more higher to the reliability of generating set, operating maintenance.Thus, shorter and shorter to the maintenance of electric generation equipments time, more and more higher to its maintenance effect requirements.Therefore be necessary to monitor the amount of oxide skin in stainless-steel tube.Before use equipment detects, be generally whether the amount of the oxide skin of not knowing blocking in deferent has exceeded threshold value.Therefore, the content of manufacturing artificial sample to the oxide skin of blocking is needed to demarcate.
Summary of the invention
The object of the invention is to the defect for prior art and deficiency, there is provided a kind of novel oxidized leather mark fixed serial test block, it designs for the different accumulating amounts of heating surface tubes in boilers different size and oxide skin, can effectively demarcate the content of oxide skin in the stainless-steel tube of different wall, be convenient to direct vision, shorten detection time, reduce testing cost.
For achieving the above object, the technical solution used in the present invention is: it comprises organic outer glass tube, organic glass inner core, stainless-steel tube oxide skin deposit; Organic glass inner core is arranged on organic glass outer tube; Described organic glass inner core is provided with grooving, and stainless-steel tube oxide skin deposit is filling inner at grooving.
The present invention adopts organic glass outer tube to simulate the austenite heating surface tube of actual power station use, demarcate the thickness of stainless-steel tube according to different thickness, realized the demarcation of stainless-steel tube oxide skin amount by the oxide skin pouring into different content in the grooving gap in the outer tube of coupling and inner core.
After adopting said structure, beneficial effect of the present invention is:
(1) it can effectively be demarcated the content of oxide skin in the stainless-steel tube of different wall, is convenient to direct vision;
(2) it can cover the dimension series of station boiler austenite heating surface tube comprehensively;
(3) it significantly shortens detection time, utilizes magnetic methods to detect, and do not need polishing, clap X ray sheet etc., detection speed increases substantially, and testing cost reduces greatly.
Accompanying drawing explanation
Fig. 1 is diagrammatic cross-section of the present invention;
Fig. 2 is the test block size table that external diameter 45mm series demarcates test block;
Fig. 3 is the test block size table that external diameter 51mm series demarcates test block;
Fig. 4 is the test block size table that external diameter 60mm series demarcates test block.
Description of reference numerals:
1, organic glass outer tube; 2, organic glass inner core; 3, stainless-steel tube oxide skin deposit.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Referring to as shown in Figure 1, the technical scheme that this embodiment adopts is: it comprises organic outer glass tube 1, organic glass inner core 2, stainless-steel tube oxide skin deposit 3; It is inner that organic glass inner core 2 is arranged on organic glass outer tube 1; Described organic glass inner core 2 is provided with grooving, and stainless-steel tube oxide skin deposit 3 is filling inner at grooving.
The external diameter of described organic glass outer tube 1 is 45,51,60mm;
The wall thickness of described organic glass outer tube 1 is 4,5,7,7.5,8,10,11,12mm etc.;
The ratio that described grooving occupies machine glass inner core 2 cross-sectional area is 20%, 30%, 40%, 50%.
External diameter is that corresponding test block numbering, wall thickness and the oxide skin content of the demarcation test block of 45mm series organic glass outer tube occupies the exhaustive division of the ratio of machine glass inner core referring to Fig. 2.
External diameter is that corresponding test block numbering, wall thickness and the oxide skin content of the demarcation test block of 51mm series organic glass outer tube occupies the exhaustive division of the ratio of machine glass inner core referring to Fig. 3.
External diameter is that corresponding test block numbering, wall thickness and the oxide skin content of the demarcation test block of 60mm series organic glass outer tube occupies the exhaustive division of the ratio of machine glass inner core referring to Fig. 4.
This embodiment adopts organic glass outer tube to simulate the austenite heating surface tube of actual power station use, demarcate the thickness of stainless-steel tube according to different thickness, realized the demarcation of stainless-steel tube oxide skin amount by the oxide skin pouring into different content in the grooving gap in the outer tube of coupling and inner core.
After adopting said structure, the beneficial effect of this embodiment is:
(1) it can effectively be demarcated the content of oxide skin in the stainless-steel tube of different wall, is convenient to direct vision;
(2) it can cover the dimension series of station boiler austenite heating surface tube comprehensively;
(3) it significantly shortens detection time, utilizes magnetic methods to detect, and do not need polishing, clap X ray sheet etc., detection speed increases substantially, and testing cost reduces greatly.
The above, only unrestricted for illustration of technical scheme of the present invention, other amendment that those of ordinary skill in the art make technical scheme of the present invention or equivalently to replace, only otherwise depart from the spirit and scope of technical solution of the present invention, all should be encompassed in the middle of right of the present invention.
Claims (10)
1. the fixed serial test block of novel oxidized leather mark, is characterized in that: it comprises organic outer glass tube (1), organic glass inner core (2), stainless-steel tube oxide skin deposit (3); Organic glass inner core (2) is arranged on organic glass outer tube (1); Described organic glass inner core (2) is provided with grooving, and stainless-steel tube oxide skin deposit (3) is filling inner at grooving.
2. the fixed serial test block of novel oxidized leather mark according to claim 1, is characterized in that the external diameter of described organic glass outer tube (1) is 45mm.
3. the fixed serial test block of novel oxidized leather mark according to claim 1, is characterized in that the external diameter of described organic glass outer tube (1) is 60mm.
4. the fixed serial test block of novel oxidized leather mark according to claim 1, is characterized in that the wall thickness of described organic glass outer tube (1) is 4mm.
5. the fixed serial test block of novel oxidized leather mark according to claim 1, is characterized in that the wall thickness of described organic glass outer tube (1) is 5mm.
6. the fixed serial test block of novel oxidized leather mark according to claim 1, is characterized in that the wall thickness of described organic glass outer tube (1) is 7.5mm.
7. the fixed serial test block of novel oxidized leather mark according to claim 1, is characterized in that the wall thickness of described organic glass outer tube (1) is 10mm.
8. the fixed serial test block of novel oxidized leather mark according to claim 1, is characterized in that the wall thickness of described organic glass outer tube (1) is 12mm.
9. the fixed serial test block of novel oxidized leather mark according to claim 1, is characterized in that the ratio that described grooving occupies machine glass inner core (2) cross-sectional area is 20%.
10. the fixed serial test block of novel oxidized leather mark according to claim 1, is characterized in that the ratio that described grooving occupies machine glass inner core (2) cross-sectional area is 30%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510892481.6A CN105372323A (en) | 2015-12-08 | 2015-12-08 | Novel oxide skin calibration series test block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510892481.6A CN105372323A (en) | 2015-12-08 | 2015-12-08 | Novel oxide skin calibration series test block |
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| CN105372323A true CN105372323A (en) | 2016-03-02 |
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| CN201510892481.6A Pending CN105372323A (en) | 2015-12-08 | 2015-12-08 | Novel oxide skin calibration series test block |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106918642A (en) * | 2017-02-28 | 2017-07-04 | 中国大唐集团科学技术研究院有限公司西北分公司 | The measurement precision bearing calibration of boiler tube internal oxidition skin deposition measuring apparatus |
| CN109444269A (en) * | 2018-12-26 | 2019-03-08 | 天津诚信达金属检测技术有限公司 | Reference block for detecting bolt by ultrasonic phased array and use method |
| CN109900781A (en) * | 2019-03-07 | 2019-06-18 | 中国科学院金属研究所 | Ferromagnetism tamper multi-channel quantitative electromechanical detection method in Austenitic stainless steel pipe |
| CN112305062A (en) * | 2020-10-26 | 2021-02-02 | 西安热工研究院有限公司 | Calibration pipe and magnetic detection method for oxide deposits in austenitic stainless steel pipe |
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2015
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106918642A (en) * | 2017-02-28 | 2017-07-04 | 中国大唐集团科学技术研究院有限公司西北分公司 | The measurement precision bearing calibration of boiler tube internal oxidition skin deposition measuring apparatus |
| CN106918642B (en) * | 2017-02-28 | 2020-07-28 | 中国大唐集团科学技术研究院有限公司西北分公司 | Measurement accuracy correction method of measurement equipment for oxide skin deposition in boiler tube |
| CN109444269A (en) * | 2018-12-26 | 2019-03-08 | 天津诚信达金属检测技术有限公司 | Reference block for detecting bolt by ultrasonic phased array and use method |
| CN109444269B (en) * | 2018-12-26 | 2024-01-23 | 天津诚信达金属检测技术有限公司 | Contrast test block for ultrasonic phased array detection bolt and use method |
| CN109900781A (en) * | 2019-03-07 | 2019-06-18 | 中国科学院金属研究所 | Ferromagnetism tamper multi-channel quantitative electromechanical detection method in Austenitic stainless steel pipe |
| CN109900781B (en) * | 2019-03-07 | 2023-11-21 | 中国科学院金属研究所 | Multichannel quantitative electromagnetic detection method for ferromagnetic plugs in austenitic stainless steel pipe |
| CN112305062A (en) * | 2020-10-26 | 2021-02-02 | 西安热工研究院有限公司 | Calibration pipe and magnetic detection method for oxide deposits in austenitic stainless steel pipe |
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Application publication date: 20160302 |
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| RJ01 | Rejection of invention patent application after publication |