CN203011763U - Structure of installing device of postdose fuel cladding pipe end plugs - Google Patents
Structure of installing device of postdose fuel cladding pipe end plugs Download PDFInfo
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- CN203011763U CN203011763U CN 201320008131 CN201320008131U CN203011763U CN 203011763 U CN203011763 U CN 203011763U CN 201320008131 CN201320008131 CN 201320008131 CN 201320008131 U CN201320008131 U CN 201320008131U CN 203011763 U CN203011763 U CN 203011763U
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- end plug
- box
- push rod
- sample
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Abstract
The utility model discloses a structure of an installing device of postdose fuel cladding pipe end plugs. The structure comprises an air cylinder, a fixing seat and a sample slot, which are connected in sequence, wherein an ejector rod is arranged between the air cylinder and the fixing seat; one end of the ejector rod is fixed on the air cylinder; the top end of the fixing seat is concave to form a fixing slot; an end plug box is arranged in the fixing slot; a spring piece and a plurality of end plugs which are arranged side by side are arranged in the end plug box, an ejector rod channel running through the fixing seat is arranged on the fixing seat; an end plug channel running through the end plug box is arranged in the end plug box; the central line of the ejector rod channel, the central line of the ejector rod, the central line of the end plug at the bottommost end, and the central line of the end plug channel are in the same straight line; and a pressing block is arranged on the sample slot. According to the structure, the condition that a fuel cladding pipe can not be damaged during the preparation of a fuel cladding pipe stretching sample is ensured, and the tightnesses of the prepared stretching sample end plugs are the same by selecting same air pressure during the preparation of the samples; and the structure has the advantages that the method is simple and convenient, the operation in a hot room can be facilitated, the cost is low, and the exposure dose on workers can be reduced.
Description
Technical field
The utility model relates to the structure of fuel tube end plug erecting device after irradiation, belongs to inspection technology field after Irradiated Fuel Rod.
Background technology
Cladding tubes act as a fuel the rod support member and the first barrier of fission product, its operating condition is very complicated and harsh, except high temperature, high pressure, wash away, vibrate, also be subject to strong neutron irradiation, therefore require fuel canning material to have combination property preferably.But neutron irradiation can make cladding tubes generation embrittlement, and the mechanical property of cladding tubes is reduced greatly.Therefore the tensile property after test pack package irradiation, have great importance for estimating the impact of irradiation on its mechanical property.
Generally adopt the whole tube section sample to carry out tension test for the thin walled tube sample, because embrittlement after cladding tubes irradiation is serious, directly carrying out clamped sample can flatly even be broken by folder, is difficult to record its tensile property.According to " method of pipeline section sample tensile test in GB/228-metal material-tensile test at room temperature method ", need to the metal end plug be installed at two bare terminal ends of cladding tubes, the involucrum tube wall is played a supporting role.
The cladding tubes internal diameter is less, if install at the direct clamping end plug of the indoor mechanical arm of heat, operation is inconvenience extremely, and accurately control is more difficult due to mechanical arm, might destroy the cladding tubes sample when end plug is installed.Because inwall after cladding tubes irradiation may adhere to the core body dust, if the staff is free-hand installation closely, must thoroughly clean sample, greatly increased working strength and operating personnel's radioactive dose, and after cleaning, sample still exists than hot, has certain harm for operating personnel's health.
The utility model content
The purpose of this utility model is to overcome the shortcoming and defect of above-mentioned prior art, the structure of fuel tube end plug erecting device after irradiation is provided, the structure of this device is in use easy, effective, by completing the installation of sample two ends end plug when the cladding tubes stretching sample preparation, prepare qualified cladding tubes tensile sample, be beneficial to simultaneously operation in the hot cell.
The purpose of this utility model is achieved through the following technical solutions: the structure of fuel tube end plug erecting device after irradiation, comprise the cylinder, holder and the sample cell that connect successively, be provided with push rod between described cylinder and holder, and push rod one end is fixed on cylinder; The top indent of described holder forms pickup groove, be provided with the end plug box in pickup groove, be provided with spring leaf and several end plugs that are set up in parallel in the end plug box, be provided with the push rod passage that runs through holder on holder, be provided with the end plug passage that runs through the end plug box in described end plug box, the center line of the center line of push rod passage, the center line of push rod, lowermost end end plug and the center line of end plug passage are all on same straight line; Be provided with briquetting on described sample cell.
Further, be provided with fastening handle on described end plug box, and fastening handle is decussate texture.Fastening handle also can be designed to other shape, satisfies being used in conjunction with of dissimilar mechanical arm.
Further, described spring leaf is arranged on the top of end plug, and end plug is vertically and is set up in parallel, and spring leaf one end contacts with nearest end plug, and the other end contacts with the top of end plug box.
Further, there is the gap between the inwall of described end plug box and pickup groove.The gap is that fine setting is done in the contact of self when stretching into for push rod, guarantees the outlet of its ejecting rod of cylinder and end plug point-blank.
Further, the equal indent of end that is in contact with one another of described briquetting and sample cell forms the V-structure of same size.The V-structure of up and down clamps cladding tubes up and down and realizes fixed support, prevents its play when end plug is squeezed into.
Further, the center line of the center line of the V-structure between described briquetting and sample cell and push rod passage is on same straight line.
Further, described briquetting adopts timber to make.
In sum, the beneficial effects of the utility model are:
(1), the utility model can guarantee that cladding tubes is not damaged when preparation cladding tubes stretching sample, and select identical air pressure can make the stretching sample end plug tightness of preparation as far as possible consistent during the preparation sample;
(2), the utility model method is easy, is beneficial to the hot cell operation, and is and with low cost;
(3), the utility model can reduce staff's radioactive dose greatly.
Description of drawings
Fig. 1 is working state schematic representation of the present utility model.
Mark and corresponding parts title in accompanying drawing: 1-cylinder; 2-push rod; 3-holder; 4-spring leaf; 5-end plug box; 6-fastening handle; 7-end plug; 8-briquetting; 9-sample cell; 10-sample.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but embodiment of the present utility model is not limited only to this.
Embodiment:
As shown in Figure 1, the structure of fuel tube end plug erecting device after irradiation comprises the cylinder 1, holder 3 and the sample cell 9 that connect successively, be provided with push rod 2 between described cylinder 1 and holder 3, and push rod 2 one ends is fixed on cylinder 1; The top indent of described holder 3 forms pickup groove, be provided with end plug box 5 in pickup groove, be provided with spring leaf 4 and several end plugs that are set up in parallel 7 in end plug box 5, be provided with the push rod passage that runs through holder 3 on holder 3, be provided with the end plug passage that runs through end plug box 5 in described end plug box 5, the center line of the center line of the center line of push rod passage, push rod 2, the center line of lowermost end end plug 7 and end plug passage is all on same straight line; Be provided with briquetting 8 on described sample cell 9.End plug box 5 adopts the cartridge-types design, disposablely places a plurality of end plugs 7, and the quantity of end plug 7 is selected according to actual needs, avoids placing radio exposure and the pollution that 7 numbers increases of end plug cause.
Be provided with fastening handle 6 on described end plug box 5, and fastening handle 6 is decussate texture.Fastening handle 6 can make end plug box 5 fixing, and the fastening handle 6 of end plug box 5 is designed to cruciform, is convenient to Robot actions.
Described spring leaf 4 is arranged on the top of end plug 7, and end plug 7 is vertically and is set up in parallel, and spring leaf 4 one ends contact with nearest end plug 7, and the other end contacts with the top of end plug box 5.After first end plug 7 ejected in end plug box 5 when ejecting rod of cylinder 2, spring leaf 4 just promoted the distance of an end plug 7 downwards with end plug 7, and second end plug 7 alignd with the end plug passage.
There is the gap between the inwall of described end plug box 5 and pickup groove.5 activities of end plug box cause ejecting rod of cylinder 2 and push rod passage not point-blank when preventing that ejecting rod of cylinder 2 from promoting end plug 5, between end plug box 5 and pickup groove, the gap are set especially, convenient fine setting.
The equal indent of end that described briquetting 8 and sample cell 9 are in contact with one another forms the V-structure of same size.
The center line of the V-structure between described briquetting 8 and sample cell 9 and the center line of push rod passage are on same straight line; Described briquetting 8 adopts timber to make.When entering cladding tubes in order to ensure ejecting rod of cylinder 2 promotion end plugs 7, cladding tubes does not jump, and sample cell 9 adopts the V-types design, and places a sample briquetting 8 above sample cell 9, and briquetting 8 indents are corresponding employing V-type design also, and sample cell 9 is identical with the indent width of briquetting 8.
When the utility model uses, carry out according to the following steps:
(1) put into end plug 7 in end plug box 5, the quantity of end plug 7 is decided by test situation, fixes spring leaf 4 above end plug;
(2) with in end plug box 5 insertion apparatus grooves, screw the fastening handle 6 of end plug box with mechanical arm, make end plug box 5 fixing;
(3) sample 10 is placed in V-type sample cell 9;
(4) be placed on sample 10 tops with manipulator clamping briquetting 8, avoid sample 10 roll and jump;
(5) by the air compressor that is connected with cylinder 1 outside the hot cell, cylinder 1 is pressurizeed;
(6) open the switch of cylinder 1, utilize air pressure that ejecting rod of cylinder 2 is ejected, ejecting rod of cylinder 2 ejects end plug box 5 with first end plug 7 in end plug box 5, squeezes in sample 10;
(7) regain ejecting rod of cylinder 2, spring leaf 4 promotes the distance of an end plug 7 downwards with second end plug 7 in end plug box 5, and second end plug 7 alignd with the end plug passage;
(8) briquetting 8 is taken off, sample 10 two ends are exchanged, put into V-type sample cell 9;
(9) repeating step 4～6, squeeze into end plug 7 at sample 10 other ends, complete the preparation of sample 10.
Take aforesaid way, just can realize preferably the utility model.
Claims (7)
1. the structure of fuel tube end plug erecting device after irradiation, it is characterized in that: comprise the cylinder (1), holder (3) and the sample cell (9) that connect successively, be provided with push rod (2) between described cylinder (1) and holder (3), and push rod (2) one ends are fixed on cylinder (1); The top indent of described holder (3) forms pickup groove, be provided with end plug box (5) in pickup groove, be provided with spring leaf (4) and several end plugs that is set up in parallel (7) in end plug box (5), be provided with the push rod passage that runs through holder (3) on holder (3), be provided with the end plug passage that runs through end plug box (5) in described end plug box (5), the center line of the center line of the center line of push rod passage, push rod (2), the center line of lowermost end end plug (7) and end plug passage is all on same straight line; Be provided with briquetting (8) on described sample cell (9).
2. the structure of fuel tube end plug erecting device after irradiation according to claim 1, is characterized in that: be provided with fastening handle (6) on described end plug box (5), and fastening handle (6) is decussate texture.
3. the structure of fuel tube end plug erecting device after irradiation according to claim 1, it is characterized in that: described spring leaf (4) is arranged on the top of end plug (7), end plug (7) is vertically and is set up in parallel, and spring leaf (4) one ends contact with nearest end plug (7), and the other end contacts with the top of end plug box (5).
4. the structure of fuel tube end plug erecting device after irradiation according to claim 1, is characterized in that: have the gap between the inwall of described end plug box (5) and pickup groove.
5. the structure of fuel tube end plug erecting device after irradiation according to claim 1, is characterized in that: the V-structure of the equal indent formation of the end same size that described briquetting (8) and sample cell (9) are in contact with one another.
6. the structure of fuel tube end plug erecting device after irradiation according to claim 5, it is characterized in that: the center line of the V-structure between described briquetting (8) and sample cell (9) and the center line of push rod passage are on same straight line.
7. the structure of fuel tube end plug erecting device after the described irradiation of any one according to claim 1 to 6, it is characterized in that: described briquetting (8) adopts timber to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320008131 CN203011763U (en) | 2013-01-08 | 2013-01-08 | Structure of installing device of postdose fuel cladding pipe end plugs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320008131 CN203011763U (en) | 2013-01-08 | 2013-01-08 | Structure of installing device of postdose fuel cladding pipe end plugs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203011763U true CN203011763U (en) | 2013-06-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320008131 Expired - Lifetime CN203011763U (en) | 2013-01-08 | 2013-01-08 | Structure of installing device of postdose fuel cladding pipe end plugs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203011763U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109991091A (en) * | 2017-12-29 | 2019-07-09 | 中国核动力研究设计院 | The experimental rig of metal material creep under a kind of in-pile irradiation environment |
-
2013
- 2013-01-08 CN CN 201320008131 patent/CN203011763U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109991091A (en) * | 2017-12-29 | 2019-07-09 | 中国核动力研究设计院 | The experimental rig of metal material creep under a kind of in-pile irradiation environment |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130619 |