CN203629904U - Equipment fixing device for representative verification test of chimney gas sample - Google Patents
Equipment fixing device for representative verification test of chimney gas sample Download PDFInfo
- Publication number
- CN203629904U CN203629904U CN201320878839.6U CN201320878839U CN203629904U CN 203629904 U CN203629904 U CN 203629904U CN 201320878839 U CN201320878839 U CN 201320878839U CN 203629904 U CN203629904 U CN 203629904U
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- CN
- China
- Prior art keywords
- pitot tube
- fixing device
- sample representation
- demonstration test
- tube sleeve
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 238000012360 testing method Methods 0.000 title claims abstract description 37
- 238000012795 verification Methods 0.000 title abstract description 4
- 238000005259 measurement Methods 0.000 claims abstract description 9
- 239000007789 gas Substances 0.000 claims description 28
- 238000003466 welding Methods 0.000 claims description 5
- 238000010079 rubber tapping Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000005070 sampling Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to an equipment fixing device for a representative verification test of a chimney gas sample. The structure comprises a pitot tube sleeve which vertically passes through a chimney wall; a pitot tube is arranged in the pitot tube sleeve in a sleeving manner; a connecting tube is arranged outside the pitot tube sleeve and connected with a flange plate via a fixed bracket; the flange plate is fixedly connected to the chimney wall via a flange nozzle. The equipment fixing device is easy to implement, hardly has any influence on the original safety performance of a chimney body and has the advantages of accuracy in measurement and simplicity and convenience in operation.
Description
Technical field
The utility model relates to the design of nuclear facilities on-site verification test unit, is specifically related to a kind of fixing device of funnel gases sample representation demonstration test.
Background technology
For accurately judging nuclear facilities operating condition, the impact of the effluent that definite kernel facility discharges on environment, obtaining representative nuclear facilities Airborne Effluent sample is one of key element.The standard of in succession upgrading the quantitative demand of sample representation at 1999 and 2010 along with American National Standards Institute and ISO (International Standards Organization), " sampling of airborne radioactivity substance release and monitoring in nuclear facilities chimney and pipeline " (ANSI/HPSN13.1-1999) and " radiomaterial sampling " in chimney and the ventilating duct of nuclear facilities (ISO2889-2010), the sample representation that supervision department of nuclear power plant of China has started to pay attention to and start to explore gradually and require nuclear facilities to carry out Airborne Effluent is tested.
Sample representation is tested on the chimney of nuclear facilities or pipeline and is carried out, and due to the complex structure of chimney or pipeline, and needs the contents such as measurement gas flow velocity homogeneity, cyclone angle simultaneously, technical sophistication, and only American-European a few countries has been grasped a complete set of technology at present.Domestic exploitation and the deposit that rarely has similar technology.
While implementing the experiment of nuclear facilities on-site verification, which kind of mode being arranged on the mensuration of carrying out parameters on nuclear facilities pipeline or chimney by solid and reliable dependence test instrument by, is an important technological problems.
Pitot tube is the key equipment of sample representation demonstration test, when measurement, need to insert flue inside, and different measurement environment should be selected the pitot tube of different size, and its length can reach several meters.For Obtaining Accurate measurement data, must guarantee that pitot tube accurately locates, can keep stable at pipe interior, reduce wind and disturb, and can flexible rotating.Pitot tube has compared with strong elasticity, if use traditional single fulcrum to fix, pitot tube exists certain amount of deflection, the sagging skew that may have measuring position and position, preset of pipe arm, thus cause measuring misalignment, make pitot tube plug have larger resistance simultaneously.
Summary of the invention
The purpose of this utility model is the defect for prior art, a kind of fixing device of funnel gases sample representation demonstration test is provided, reduce the adverse effect that single fulcrum fixed form causes test, thereby make angle in nuclear facilities funnel gases sample representation test various features parametric measurement read more convenient.
The technical solution of the utility model is as follows: a kind of fixing device of funnel gases sample representation demonstration test, comprise the vertical pitot tube sleeve through chimney wall, pitot tube is sleeved in pitot tube sleeve, described pitot tube sleeve is provided with connecting pipe outward, described connecting pipe is connected with ring flange by fixed support, and ring flange is fixed on chimney wall by flange mouth.
Further, the fixing device of funnel gases sample representation demonstration test as above, wherein, described ring flange is provided with the angle index for carrying out gas cyclone angular measurement trial position; Described pitot tube sleeve is provided with the length scale for pitot tube location.
Further, the fixing device of funnel gases sample representation demonstration test as above, wherein, described fixed support is annular, is installed on the outer wall of connecting pipe, fixed support is connected with ring flange by bolt.
Further, the fixing device of funnel gases sample representation demonstration test as above, wherein, and one end of described flange mouth and the welding of the tapping of chimney wall, the other end is connected with described ring flange by bolt.
Further, the fixing device of funnel gases sample representation demonstration test as above, wherein, be provided with screw thread at described connecting pipe end, there is fastening nut at pitot tube bush outer sleeve, after point of arrival position, pitot tube measuring position requires, the screw thread of fastening nut and connecting pipe end is tightened.
Further, the fixing device of funnel gases sample representation demonstration test as above, wherein, described pitot tube is provided with fastening plug outward, and the inwall of fastening plug and pitot tube sleeve is welded and fixed.
Further, the fixing device of funnel gases sample representation demonstration test as above wherein, is also provided with passive bearing between described pitot tube and the inwall of pitot tube sleeve.
The beneficial effects of the utility model are as follows: device provided by the utility model is fixing for nuclear facilities (as nuclear power station etc.) funnel gases sample representation demonstration test testing equipment, this design is by the mode joint test fixing device of perforate on nuclear facilities chimney and welding flange, to chimney, larger change is not made in original design, after completing, experiment only need to weld shutoff or blind flange is installed the performance index that get final product reduced chimney, easy to implement, and the original security performance of chimney body is not almost affected.This device has measures the advantages such as accurate, easy and simple to handle.
Brief description of the drawings
Fig. 1 is the structural representation of the fixing device of funnel gases sample representation demonstration test.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in detail.
As shown in Figure 1, the fixing device of the funnel gases sample representation demonstration test that the utility model provides is made up of pitot tube sleeve 1, fastening nut 3, fastening plug 4, connecting pipe 5, fixed support 6, bearing 7, ring flange 8, flange mouth 9, S shape pitot tube 2 is sleeved in pitot tube sleeve 1, two ends are fixed, and whole stationary installation is fixed on chimney wall 10 by flange mouth 9.
Perforate welding flange mouth 9 on chimney wall 10, flange mouth 9 is identical with chimney wall material, is welded on the tapping of chimney breast after the connection straight tube of flange mouth and flange machine, welding requirements flange connect straight tube and air channel be 90 ° vertical.Flange mouth 9 is connected by 12 groups of bolts with ring flange 8, on ring flange 8, is carved with angle index, measures the location of test to carry out gas cyclone angle θ.
On 8 two concentric circless of ring flange, be welded with bolt, ring flange 8 is the flange mouth of chimney and the link of pitot tube fixed support 6.When test, pitot tube sleeve 1 and fixed support 6 are directly sleeved in flange group; Tested the rear blind flange of directly installing on flange.
Fastening plug 4 is set pitot tube 2 is outer, by fastening plug 4, pitot tube is welded in cylindrical stainless steel sheet| trustship sleeve 1, to strengthen the intensity of pitot tube, between pitot tube 2 and the inwall of pitot tube sleeve 1, be also provided with passive bearing 7.Outside pitot tube sleeve 1, be provided with stainless steel connecting pipe 5, strengthen pitot tube fixation by extending the clamping length of connecting pipe 5, with the left and right that prevents from may occurring in process of the test or upper and lower deflection with tremble.Described fixed support 6 is annular, is installed on the outer wall of connecting pipe 5, and fixed support 6 is connected with ring flange 8 by bolt.Tip designs at connecting pipe 5 has screw thread, fastening nut 3 is installed on pitot tube sleeve 1, pitot tube sleeve 1 is inserted to connecting pipe 5, pitot tube sleeve 1 is provided with the length scale for pitot tube location, can screw fastening nut 3 pitot tube is fixed after adjustment pitot tube measuring position arrives requirement point position.
Nuclear facilities carries out in the demonstration tests such as funnel gases sampling air-flow uniformity coefficient, and the using method of fixing device is as follows:
On cylindrical pitot tube sleeve, be provided with scale, with the accurate location of testing.Location can be realized in the following manner:
(1) plug-in type--the total length of establishing stationary installation and ring flange is L1, flange mouth length is L2, and chimney wall thickness is L3, and certain tested point distance of positions is L4 from the horizontal range of inner wall of stack, when pitot tube is inserted to chimney, the corresponding scale value in stationary installation edge is L, L=L1+L2+L3+L4.
(2) pull-out--establish and pitot tube is inserted to chimney until opposite side is arrived on top, the sleeve scale value that now stationary installation edge is corresponding is L1, certain tested point distance of positions is L2 from the horizontal range of inner wall of stack, and when pitot tube is inserted to chimney, the corresponding scale value in stationary installation edge is L=L1+L2.
Nuclear facilities carries out in the demonstration test of funnel gases sampling cyclone angle, and the using method of fixing device is as follows:
By measurement mechanism assembling, by connecting pipe rotating disk, stationary installation cover is suspended on the bolt of ring flange, nut is screwed to and can makes the relatively fixing position that again can flexible rotating of connecting pipe, now the relative connecting pipe of pitot tube sleeve is free to rotate.The plumb position of first adjusting pitot tube overlaps with the vertical groove accommodating on device, then vertically the scale on groove extended line companion flange dish is as 0 ° of reference point, and in test, directly to accommodate ring flange that device groove is corresponding, angle is as measured value clockwise, counterclockwise.
Obviously, those skilled in the art can carry out various changes and modification and not depart from spirit and scope of the present utility model the utility model.Like this, if to these amendments of the present utility model with within modification belongs to the scope of the utility model claim and equivalent technology thereof, the utility model is also intended to comprise these changes and modification interior.
Claims (8)
1. the fixing device of a funnel gases sample representation demonstration test, it is characterized in that: comprise the vertical pitot tube sleeve (1) through chimney wall (10), pitot tube (2) is sleeved in pitot tube sleeve (1), the outer connecting pipe (5) that is provided with of described pitot tube sleeve (1), described connecting pipe (5) is connected with ring flange (8) by fixed support (6), and ring flange (8) is fixed on chimney wall (10) by flange mouth (9).
2. the fixing device of funnel gases sample representation demonstration test as claimed in claim 1, is characterized in that: described ring flange (8) is provided with the angle index for carrying out gas cyclone angular measurement trial position.
3. the fixing device of funnel gases sample representation demonstration test as claimed in claim 1, is characterized in that: described pitot tube sleeve (1) is provided with the length scale for pitot tube location.
4. the fixing device of funnel gases sample representation demonstration test as claimed in claim 1, it is characterized in that: described fixed support (6) is annular, be installed on the outer wall of connecting pipe (5), fixed support (6) is connected with ring flange (8) by bolt.
5. the fixing device of the funnel gases sample representation demonstration test as described in claim 1 or 4, it is characterized in that: one end of described flange mouth (9) and the welding of the tapping of chimney wall (10), the other end is connected with described ring flange (8) by bolt.
6. the fixing device of funnel gases sample representation demonstration test as claimed in claim 1 or 2, it is characterized in that: be provided with screw thread at described connecting pipe (5) end, there is fastening nut (3) at pitot tube sleeve (1) overcoat, after point of arrival position, pitot tube measuring position requires, fastening nut (3) is tightened with the screw thread of connecting pipe (5) end.
7. the fixing device of funnel gases sample representation demonstration test as claimed in claim 1, is characterized in that: the outer fastening plug (4) that is provided with of described pitot tube (2), fastening plug (4) is welded and fixed with the inwall of pitot tube sleeve (1).
8. the fixing device of the funnel gases sample representation demonstration test as described in claim 1 or 7, is characterized in that: between described pitot tube (2) and the inwall of pitot tube sleeve (1), be also provided with passive bearing (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320878839.6U CN203629904U (en) | 2013-12-27 | 2013-12-27 | Equipment fixing device for representative verification test of chimney gas sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320878839.6U CN203629904U (en) | 2013-12-27 | 2013-12-27 | Equipment fixing device for representative verification test of chimney gas sample |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203629904U true CN203629904U (en) | 2014-06-04 |
Family
ID=50816370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320878839.6U Expired - Lifetime CN203629904U (en) | 2013-12-27 | 2013-12-27 | Equipment fixing device for representative verification test of chimney gas sample |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203629904U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103698163A (en) * | 2013-12-27 | 2014-04-02 | 中国原子能科学研究院 | Equipment fixing device for chimney gas sampling representativeness verification test |
| CN110082168A (en) * | 2019-06-04 | 2019-08-02 | 佛山华谱测智能科技有限公司 | A kind of multi-channel gas sampling probe and the sampler including the probe |
| US10884021B1 (en) * | 2018-02-13 | 2021-01-05 | Air Hygiene International, Inc. | S-type pitot tube field verification gauge and method of its use |
-
2013
- 2013-12-27 CN CN201320878839.6U patent/CN203629904U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103698163A (en) * | 2013-12-27 | 2014-04-02 | 中国原子能科学研究院 | Equipment fixing device for chimney gas sampling representativeness verification test |
| US10884021B1 (en) * | 2018-02-13 | 2021-01-05 | Air Hygiene International, Inc. | S-type pitot tube field verification gauge and method of its use |
| CN110082168A (en) * | 2019-06-04 | 2019-08-02 | 佛山华谱测智能科技有限公司 | A kind of multi-channel gas sampling probe and the sampler including the probe |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140604 |
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| CX01 | Expiry of patent term |