CN102679932A - Diagonal line measuring tool of power boiler cold bend pipe - Google Patents
Diagonal line measuring tool of power boiler cold bend pipe Download PDFInfo
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- CN102679932A CN102679932A CN201210172972XA CN201210172972A CN102679932A CN 102679932 A CN102679932 A CN 102679932A CN 201210172972X A CN201210172972X A CN 201210172972XA CN 201210172972 A CN201210172972 A CN 201210172972A CN 102679932 A CN102679932 A CN 102679932A
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- pipe
- bend pipe
- clod wash
- end cap
- diagonal line
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Abstract
The invention discloses a diagonal line measuring tool of a power boiler cold bend pipe. The diagonal line measuring tool comprises an end cover, wherein one side of the end cover is provided with a bayonet, and the bayonet is matched with a pipe port of the cold bend pipe to be detected; the centre of the end cover is vertically connected with adjustment rods, and the adjustment rods deviating from one side of the bayonet stretch out; two pipe ports of the cold bend pipe to be detected respectively correspond to one diagonal line measuring tool of the power boiler cold bend pipe provided by the invention, and each pipe port of the cold bend pipe to be detected is respectively inserted into a groove of the end cover; and working personnel can use measuring tools such as rulers to measure the distance of rod tops of the two adjustment rods, the measured value is compared with the theory corrected value, and the conclusion that whether the quality of the cold bend pipe is qualified to be obtained. The diagonal line measuring tool of the power boiler cold bend pipe provided by the invention does not needs to carry out complicated operation such as working site staking out, and the detection efficiency is improved; and the labour intensity is reduced in detection, thereby accelerating production flow, reducing the production cost, avoiding casual inspection (staking out measurement), causing unacceptable product leave factory phenomenon, and improving ex factory pass rate.
Description
Technical field
The present invention relates to a kind of station boiler clod wash pipe quality detection device.
Background technology
The anglec of rotation that station boiler clod wash pipe caliber is little, bend pipe quantity many and major part is all had living space.At present; Judge the method that bending quality is whether qualified; Be through sampling observation (setting out survey), the curvature of bend pipe and the distance of two mouths of pipe (what obtain during setting-out is the distance that bend pipe is overlooked two mouths of pipe under the state) compared with its theoretical value, thereby judge whether bending quality is qualified on ground.The defective of this method is comparatively complicated, and unwrapping wire, measurement be trouble comparatively, and work efficiency is very low, is generally sampling observation in proportion, the phenomenon that causes substandard product to dispatch from the factory easily.When bend pipe quantity more for a long time, detecting bending quality will become the neck portion in the production procedure.
Research through the inventor; Discovery is being confirmed under the correct prerequisite of clod wash pipe quantity, bend pipe angle and direction; Whether judgement bending quality that can be very fast through measurement clod wash pipe diagonal line (diagonal line is the air line distance between the center, clod wash pipe two mouth of pipe end) method is qualified; The clod wash pipe is up-to-standard when being clod wash pipe diagonal line identical with its theoretical value (or error in allowed limits), otherwise then defective.But this method is not found in the present technique field at present, is not used for measuring the cornerwise device of clod wash pipe certainly yet.
Summary of the invention
The object of the present invention is to provide a kind of station boiler clod wash pipe diagonal line to measure frock.
For realizing above-mentioned purpose, station boiler clod wash pipe diagonal line of the present invention is measured frock and is comprised end cap, and end cap one side is provided with bayonet socket, and the mouth of pipe of said bayonet socket and clod wash pipe to be checked is suitable; The end cap central vertical is connected with the adjustment rod, and the adjustment rod stretches out to a side that deviates from said bayonet socket; The adjustment rod is consistent with the center line of end cap, and end cap is consistent with the clod wash tube hub line at the mouth of pipe place during use.
Said bayonet socket is a groove structure, and the mouth of pipe of said groove and clod wash pipe to be checked is suitable.
The free end of said adjustment rod is a tapered end, and the tip of tapered end is the rod point of said adjustment rod, and this rod point is positioned on the center line of adjustment rod.
Said adjustment rod is screwed onto on the said end cap, and the adjustment rod is gone up and is bolted with gland nut in the both sides of end cap, and gland nut will be adjusted rod and be pressed on the said end cap.
The present invention has following advantage:
1. the present invention is simple in structure, and is easy to use.Need calculate the cornerwise theoretical modified value of clod wash pipe earlier before using, this theory modified value is about to cornerwise length value of drawing behind the mouth of pipe center axially-extending (extending length with adjust the distance that excellent point stretches out the mouth of pipe identical) of standard clod wash pipe.During use, the corresponding respectively station boiler clod wash pipe diagonal line of the present invention of two mouths of pipe of clod wash pipe to be checked is measured frock, and each mouth of pipe of clod wash pipe to be checked inserts respectively in the end cap groove (bayonet socket).Because the adjustment rod is vertically connected on the end cap; Therefore the center line of adjustment rod is identical with the center line of clod wash pipe opening part to be checked; This moment, the staff measured the distance between the excellent end of the two adjustment center with survey instruments such as rulers; Be Diagonal Dimension, measured value is compared with theoretical modified value, can draw the whether up-to-standard conclusion of clod wash pipe.Use station boiler clod wash pipe diagonal line of the present invention to measure frock; Need not on-the-spot unwrapping wire etc. complex operations; Improved detection efficiency, reduced the labour intensity when detecting, thereby the speed production flow process, reduced production costs; The phenomenon of avoiding sampling observation (setting out survey) to cause substandard product to dispatch from the factory has improved ex factory pass rate.
2. the setting of tapered end makes the staff when measuring, and need not seek the center of adjustment rod again, and the distance of directly measuring between the two rod points gets final product, further facilitate measuring operation, improved efficiency of measurement, thus further speed production flow process.
3. said adjustment rod is screwed onto on the said end cap, is convenient to install to make, and also is convenient in measuring process as required (when like the diagonal line of measuring the clod wash pipe obstacle being arranged) and regulates the length that the adjustment rod stretches out end cap.The adjustment rod is gone up and is bolted with gland nut in the both sides of end cap, can will adjust rod through gland nut and be pressed on the said end cap, guarantees the length dimension of rod point to mouth of pipe end.
4. different based on measured clod wash external diameter of pipe, the end cap of design and making different size is realized the cornerwise measurement of different size clod wash pipe.
5. the frock materials used is common, and processing is simple, and cost of manufacture is low; Easy to operate, realize easily.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
As shown in Figure 1, station boiler clod wash pipe diagonal line of the present invention is measured frock and is comprised end cap 1, and end cap 1 one sides are provided with bayonet socket, and bayonet socket preferably is arranged to groove 2, and said groove 2 is suitable with the mouth of pipe of clod wash pipe to be checked; End cap 1 central vertical is connected with adjustment rod 3, and the center line of adjustment rod 3 is consistent with the center line of clod wash pipe opening part to be checked during work, adjusts excellent 3 and stretches out to a side that deviates from said groove 2.The adjustment rod is consistent with the center line of end cap, and end cap is consistent with the clod wash tube hub line at the mouth of pipe place during use.
The free end of said adjustment rod 3 is a tapered end 4, and the tip of tapered end 4 is the rod point 5 of said adjustment rod 3, and this rod point 5 is positioned on the center line of adjustment rod 3.
Said adjustment rod 3 is screwed onto on the said end cap 1, is bolted with gland nut 6 in the both sides of end cap 1 on the adjustment rod 3, and gland nut 6 will be adjusted rod 3 and be pressed on the said end cap 1.
During manufacturing, confirm the diameter of said end cap groove 2, make end cap groove 2 suitable with the mouth of pipe of clod wash pipe to be checked according to the concrete size of clod wash pipe to be checked.Preferably make external diameter+1.5 millimeter of the internal diameter=clod wash pipe to be checked of groove 2.
During use, at first be that the staff passes through range estimation, confirm that quantity, the bend pipe angle and direction of bend pipe all is correct.Because station boiler itself is not a precision optical machinery, artificial visually examine's error within the range of permission.
The staff covers a station boiler clod wash pipe diagonal line measurement frock of the present invention respectively at two mouths of pipe of clod wash pipe to be checked then, and the mouth of pipe that is about to clod wash pipe to be checked stretches in the said end cap groove 2.Because adjustment rod 3 is vertically connected on the end cap 1, therefore the center line of adjustment rod 3 is identical with the center line of clod wash pipe opening part to be checked.
Be (to adjust on excellent 3 center lines at last because rod point 5 is positioned at the distance that survey instruments such as ruler are measured between the excellent point 5 of two adjustment rods; And adjustment rod 3 and the concentricity line of clod wash pipe opening part to be checked; Therefore two rods point 5 all is on the center line of clod wash pipe to be checked); Compare with the cornerwise theoretical value of revised clod wash pipe that calculated in advance is good, draw the whether up-to-standard conclusion of clod wash pipe.The cornerwise theoretical value of said revised clod wash pipe is the cornerwise length value that draws behind the mouth of pipe center axially-extending (extending length is identical with the distance that adjustment rod rod point 5 stretches out the mouth of pipe) with standard clod wash pipe.
Use station boiler clod wash pipe diagonal line of the present invention to measure frock; Need not on-the-spot unwrapping wire etc. complex operations; Improved detection efficiency, reduced the labour intensity when detecting, thereby the speed production flow process, reduced production costs; The phenomenon of avoiding sampling observation (setting out survey) to cause substandard product to dispatch from the factory has improved ex factory pass rate.
Certainly, the present invention includes but be not limited to present embodiment, the various conventional conversion of on basis of the present invention, being done also can be made into other bayonet socket shapes such as buckle by groove like the structure of bayonet socket; This type of conversion all drops within protection scope of the present invention.
Claims (4)
1. station boiler clod wash pipe diagonal line is measured frock, and it is characterized in that: comprise end cap, end cap one side is provided with bayonet socket, and the mouth of pipe of said bayonet socket and clod wash pipe to be checked is suitable; The end cap central vertical is connected with the adjustment rod, and the adjustment rod stretches out to a side that deviates from said bayonet socket; The adjustment rod is consistent with the center line of end cap, and end cap is consistent with the clod wash tube hub line at the mouth of pipe place during use.
2. station boiler clod wash pipe diagonal line according to claim 1 is measured frock, and it is characterized in that: said bayonet socket is a groove structure, and the mouth of pipe of said groove and clod wash pipe to be checked is suitable.
3. measure frock based on the described station boiler clod wash of claim 2 pipe diagonal, it is characterized in that: the free end of said adjustment rod is a tapered end, and the tip of tapered end is the rod point of said adjustment rod, and this rod point is positioned on the center line of adjustment rod.
4. measure frock according to each described station boiler clod wash pipe diagonal line in the claim 1 to 3; It is characterized in that: said adjustment rod is screwed onto on the said end cap; The adjustment rod is gone up and is bolted with gland nut in the both sides of end cap, and gland nut will be adjusted rod and be pressed on the said end cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210172972.XA CN102679932B (en) | 2012-05-30 | 2012-05-30 | Diagonal line measuring tool of power boiler cold bend pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210172972.XA CN102679932B (en) | 2012-05-30 | 2012-05-30 | Diagonal line measuring tool of power boiler cold bend pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102679932A true CN102679932A (en) | 2012-09-19 |
| CN102679932B CN102679932B (en) | 2014-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210172972.XA Active CN102679932B (en) | 2012-05-30 | 2012-05-30 | Diagonal line measuring tool of power boiler cold bend pipe |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55144340A (en) * | 1979-04-27 | 1980-11-11 | Mitsubishi Heavy Ind Ltd | Bending device of finned pipe |
| CN201387331Y (en) * | 2009-03-31 | 2010-01-20 | 新乡天丰机械制造有限公司 | Cold roll forming device and swing rod detecting device thereof |
| CN201404978Y (en) * | 2009-03-20 | 2010-02-17 | 武汉钢铁(集团)公司 | Cold bending pipe device |
| CN202599386U (en) * | 2012-05-30 | 2012-12-12 | 河南华电金源管道有限公司 | Diagonal measuring tool for cold bends of power station boilers |
-
2012
- 2012-05-30 CN CN201210172972.XA patent/CN102679932B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55144340A (en) * | 1979-04-27 | 1980-11-11 | Mitsubishi Heavy Ind Ltd | Bending device of finned pipe |
| CN201404978Y (en) * | 2009-03-20 | 2010-02-17 | 武汉钢铁(集团)公司 | Cold bending pipe device |
| CN201387331Y (en) * | 2009-03-31 | 2010-01-20 | 新乡天丰机械制造有限公司 | Cold roll forming device and swing rod detecting device thereof |
| CN202599386U (en) * | 2012-05-30 | 2012-12-12 | 河南华电金源管道有限公司 | Diagonal measuring tool for cold bends of power station boilers |
Non-Patent Citations (3)
| Title |
|---|
| JOHN EUSTICE: "Experiments on Stream-Line Motion in Curved Pipes", 《PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON,SERIES A》, 11 April 1911 (1911-04-11), pages 119 - 131 * |
| 崔保香: "电站管道工厂化制造中冷弯管伸长量的测定及应用", 《安装》, no. 12, 31 December 2010 (2010-12-31), pages 24 - 27 * |
| 杨秀芳等: "成型冷弯管的检测技术分析", 《西部大开发（中旬刊）》, no. 1, 31 January 2011 (2011-01-31), pages 71 - 85 * |
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| CN102679932B (en) | 2014-07-30 |
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