CN202939137U - Heat-exchanging tube seal welding radiographic tool - Google Patents
Heat-exchanging tube seal welding radiographic tool Download PDFInfo
- Publication number
- CN202939137U CN202939137U CN 201220611242 CN201220611242U CN202939137U CN 202939137 U CN202939137 U CN 202939137U CN 201220611242 CN201220611242 CN 201220611242 CN 201220611242 U CN201220611242 U CN 201220611242U CN 202939137 U CN202939137 U CN 202939137U
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- CN
- China
- Prior art keywords
- heat
- pilot hole
- filter
- exchange tube
- exchanging tube
- Prior art date
- 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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- Analysing Materials By The Use Of Radiation (AREA)
- Length-Measuring Devices Using Wave Or Particle Radiation (AREA)
Abstract
The utility model discloses a heat-exchanging tube seal welding radiographic tool. The heat-exchanging tube seal welding radiographic tool comprises a filter plate and a baffle plate installed on the filter plate, wherein a ray film is installed between the filter plate and the baffle plate; a row of positioning holes are equidistantly distributed on the filter plate; the positioning holes penetrate through the baffle plate and are inserted into a heat-exchanging tube; and radioactive sources are arranged inside the positioning holes. Through arrangement of the filter plate, the baffle plate, and the ray film installed between the filter plate and the baffle plate, during welding inspection, the heat-exchanging tube seal welding radiographic tool can be quickly installed on a workpiece to be inspected through the positioning holes and batch inspection can be facilitated; and radiation of the radioactive sources is baffled by the baffle plate, so that influence of the radiation on the ray film can be prevented and the imaging quality of the ray film is improved. Therefore, the heat-exchanging tube seal welding radiographic tool is applicable to the weld inspection on seal welding of the heat-exchanging tube.
Description
Technical field
The utility model relates to a kind of heat-exchange tube sealing weldering radiography frock.
Background technology
The method of general weld seam radioscopy is, a side at weld seam is laid radioactive source, opposite side at weld seam is laid radiographic film, after starting radioactive source, the weld seam that radiation exposure is detected, the ray that sees through makes radiographic film sensitization, cleans film, the internal soundness of weld seam that can be detected according to the sensitization situation judgement of radiographic film.And because the welded structure between heat-exchange tube and tube sheet is welding between the mouth of pipe and pipe fitting, can not adopt the method for general weld seam radioscopy to detect.When the weld seam radioscopy that the sealing to heat-exchange tube is welded, after needing radioactive source is arranged on compensation block, during check, radioactive source is sent in heat-exchange tube, ray is after the weld seam of managing interior ejaculation and the irradiation mouth of pipe, directly make and be placed on the outer radiographic film sensitization of the mouth of pipe, after cleaning film, the internal soundness of the weld seam detected according to the sensitization situation judgement of radiographic film.There is following shortcoming in this special weld seam ray detection method: 1) radiographic film is without relevant stationary installation, and it is not easy to testing staff's operation; 2) there is the amplification situation in defective, affects the evaluation of defective full-size(d); 3) the tube wall imaging is subjected to limit erosion effects.
The utility model content
The purpose of this utility model is to provide a kind of heat-exchange tube sealing weldering radiography frock, and its energy Fast Installation is conducive to the mass check.
The solution that the utility model solves its technical matters is: a kind of heat-exchange tube sealing weldering radiography frock, it comprises filter and is arranged on shutter on filter, between described filter and shutter, radiographic film is installed, be furnished with the pilot hole that row's spacing equates on filter, described pilot hole inserts in heat-exchange tube after passing shutter, all is placed with radioactive source in pilot hole.
As further improvement in the technical proposal, also be provided with on described filter quantity and pilot hole coupling and with the circular groove of the concentricity axle of pilot hole.
As further improvement in the technical proposal, the diameter of described circular groove is 34 millimeters.
As further improvement in the technical proposal, the quantity of described pilot hole is 5, and the spacing of the central shaft of adjacent pilot hole is 20 ~ 30 millimeters.
As further improvement in the technical proposal, described pilot hole is threaded connection and is fixed on filter.
As further improvement in the technical proposal, also be provided with 4 swell fixture holes on described shutter.
The beneficial effects of the utility model are: the utility model by filter, shutter are set and be arranged on filter and shutter between radiographic film, so when weld seam detection, can the utility model be quick installed on workpiece to be detected by pilot hole, be conducive to the mass check, and block the radiation of radioactive source by shutter, prevent that it from affecting radiographic film, by filter is set, improve the quality of imaging on radiographic film.The utility model is applicable to the weld seam detection of heat-exchange tube sealing weldering.
Description of drawings
Below in conjunction with accompanying drawing and example, the utility model is further described.
Fig. 1 is broken away view of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, describe the application of the utility model in the weld seam that detects heat-exchange tube sealing weldering in detail.
With reference to Fig. 1, a kind of heat-exchange tube sealing weldering radiography frock, it comprises filter 1 and is arranged on shutter 2 on filter 1,2 of described filter 1 and shutters are equipped with radiographic film, be furnished with the pilot hole 3 that row's spacing equates on filter 1, described pilot hole 3 passes in the rear insertion heat-exchange tube of shutter 2, the interior radioactive source that all is placed with of pilot hole 3.In the utility model, radioactive source is preferably the γ source, and filter 1 is preferably aluminium matter member, and the thickness of filter 1 is 2 millimeters, and shutter 2 is preferably aluminium matter framework, and the thickness of shutter 2 is 6 millimeters, and the overall diameter of pilot hole 3 is 13.2 millimeters.After pilot hole 3 passes shutter 2 insertion heat-exchange tubes, according to the distance between welding line structure size setting radioactive source and film.
By filter 1, shutter 2 being set and being arranged on filter 1 and the radiographic film of 2 of shutters, so when weld seam detection, can the utility model be quick installed on workpiece to be detected by pilot hole 3, be conducive to the mass check, and block the radiation of radioactive source by shutter 2, prevent that it from affecting radiographic film, by filter 1 is set, improve the quality of imaging on radiographic film.
Be further used as preferred embodiment, also be provided with on described filter 1 quantity and pilot hole 3 couplings and with the circular groove 4 of pilot hole 3 concentricity axles.By the imaging of circular groove 4 at radiographic film, determine test range of the present utility model.
Be further used as preferred embodiment, the diameter of described circular groove 4 is 34 millimeters.
Be further used as preferred embodiment, the quantity of described pilot hole 3 is 5, and the spacing of the central shaft of adjacent pilot hole 3 is 20 ~ 30 millimeters, can set the spacing of the central shaft of pilot hole 3 according to the needs that reality detects, to satisfy the different measuring condition.By a plurality of pilot holes 3 are set, can once check a plurality of weld seams, improve detection efficiency.
Be further used as preferred embodiment, described pilot hole 3 is threaded connection and is fixed on filter 1.Can be threaded connection the pilot hole 3 of obstructed length, can regulate the interior radioactive source of pilot hole 3 to the distance of radiographic film, make the effect of the imaging on radiographic film reach best.
Be further used as preferred embodiment, also be provided with 4 swell fixture holes 5 on described shutter 2.By swell fixture hole 5, the utility model is fixed on workpiece to be detected.
More than that better embodiment of the present utility model is illustrated, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent modifications or replacement under the prerequisite of the utility model spirit, the modification that these are equal to or replacement all are included in the application's claim limited range.
Claims (6)
1. the radiography frock is welded in a heat-exchange tube sealing, it is characterized in that: it comprises filter (1) and is arranged on shutter (2) on filter (1), between described filter (1) and shutter (2), radiographic film is installed, be furnished with the pilot hole (3) that row's spacing equates on filter (1), described pilot hole (3) inserts in heat-exchange tube after passing shutter (2), and pilot hole all is placed with radioactive source in (3).
2. heat-exchange tube according to claim 1 sealing weldering radiography frock is characterized in that: be provided with also on described filter (1) that quantity and pilot hole (3) mate and with the circular groove (4) of the concentricity axle of pilot hole (3).
3. the radiography frock is welded in heat-exchange tube sealing according to claim 2, and it is characterized in that: the diameter of described circular groove (4) is 34 millimeters.
4. the radiography frock is welded in heat-exchange tube sealing according to claim 1, and it is characterized in that: the quantity of described pilot hole (3) is 5, and the spacing of the central shaft of adjacent pilot hole (3) is 20 ~ 30 millimeters.
5. the radiography frock is welded in heat-exchange tube sealing according to claim 1, and it is characterized in that: described pilot hole (3) is threaded connection and is fixed on filter (1).
6. heat-exchange tube sealing weldering radiography frock according to claim 1, is characterized in that: also be provided with 4 swell fixture holes (5) on described shutter (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220611242 CN202939137U (en) | 2012-11-16 | 2012-11-16 | Heat-exchanging tube seal welding radiographic tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220611242 CN202939137U (en) | 2012-11-16 | 2012-11-16 | Heat-exchanging tube seal welding radiographic tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202939137U true CN202939137U (en) | 2013-05-15 |
Family
ID=48323368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220611242 Expired - Lifetime CN202939137U (en) | 2012-11-16 | 2012-11-16 | Heat-exchanging tube seal welding radiographic tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202939137U (en) |
-
2012
- 2012-11-16 CN CN 201220611242 patent/CN202939137U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130515 |
|
| CX01 | Expiry of patent term |