CN204583808U - A kind of spent fuel storage sleeve pipe inner wall washing instrument - Google Patents
A kind of spent fuel storage sleeve pipe inner wall washing instrument Download PDFInfo
- Publication number
- CN204583808U CN204583808U CN201420858021.2U CN201420858021U CN204583808U CN 204583808 U CN204583808 U CN 204583808U CN 201420858021 U CN201420858021 U CN 201420858021U CN 204583808 U CN204583808 U CN 204583808U
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- CN
- China
- Prior art keywords
- brush holder
- spent fuel
- brush
- collecting pipe
- wall
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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.)
- Withdrawn - After Issue
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Abstract
The utility model relates to a kind of spent fuel storage sleeve pipe inner wall washing instrument, comprises maintenance-bridge above Spent Fuel Pool and stretches into stock in Spent Fuel Pool, is fixed on the impurity pumping components of this stock lower end, is fixed on the cleaning assembly of impurity pumping components lower end; Impurity pumping components comprises immersible pump and collecting pipe; Impeller in immersible pump can carry out rotating and many grades of changed speed operations, inside and outside the collection mouth of pipe, form two-way water pressure difference; Impeller rotates forward, and is formed and collects the physical state of overpressure lower than collecting pipe external pressure, by target alien material through sucking in collecting pipe; Collecting pipe inside is provided with filter structure; Cleaning assembly comprises brush holder and is arranged on the brush on brush holder, and brush holder upper end is connected with collecting pipe lower end; Collecting pipe upper end is connected with immersible pump lower end, and immersible pump upper end is connected with stock lower end.The utility model is convenient to clean storage sleeve pipe inwall, for the water outlet of spent fuel storage screen work, keeps in, processes or disposes and create safe condition.
Description
Technical field
The present invention relates to nuclear engineering technical field, be specifically related to a kind of spent fuel storage sleeve pipe inner wall washing instrument.
Background technology
Nuclear power station is through running for many years, and part underwater units enters retirement phase, and spent fuel storage screen work is one of these retired devices.In spent fuel storage screen work storage sleeve pipe wall or attached to a lot of rust deposites, bottom may deposit spentnuclear fuel clad failure fragment, particle or dust.If the metallics in these rust deposites, fragment, particle and dust is activated, dosage will be very high, to the water outlet of spent fuel storage screen work, keeps in, processes or dispose and bring greatly inconvenience and risk.For reducing the irradiation risk of the personnel performing these operations, developing a kind of novel storage sleeve pipe inner wall washing instrument for removing these foreign matters, seeming particularly important.Current nuclear power station does not have rust deposite, fragment, particle and dust in comparatively feasible equipment removal storage sleeve pipe.
Summary of the invention
The object of this invention is to provide the foreign matter such as dust, floccule in a kind of fifth wheel such as rust deposite, fragment in order to remove spent fuel storage sleeve pipe inwall and water, reduce high radioactivity material, reduce the dose of radiation of spent fuel storage screen work, for the water outlet of spent fuel storage screen work, temporary, process or dispose the spent fuel storage sleeve pipe inner wall washing instrument created conditions.
The present invention realizes like this, a kind of spent fuel storage sleeve pipe inner wall washing instrument, comprises maintenance-bridge above Spent Fuel Pool and stretches into stock in Spent Fuel Pool, is fixed on the impurity pumping components of this stock lower end, is fixed on the cleaning assembly of described impurity pumping components lower end;
Described impurity pumping components comprises immersible pump and collecting pipe; Impeller in described immersible pump can carry out rotating and many grades of changed speed operations, inside and outside the collection mouth of pipe, form two-way water pressure difference; Impeller rotates forward, and is formed and collects the physical state of overpressure lower than collecting pipe external pressure, by target alien material through sucking in collecting pipe; Described collecting pipe inside is provided with filter structure, filters non-impurity substances for the impurity in water in collecting pipe;
Described cleaning assembly comprises brush holder and is arranged on the brush on brush holder, and described brush holder upper end is connected with described collecting pipe lower end; Described collecting pipe upper end is connected with immersible pump lower end, and described immersible pump upper end is connected with stock lower end.
Described brush holder comprises nipple, vertical angle seam brush holder, wall brush holder, suction channel box, base angle seam brush holder;
Nipple is that upper end is provided with externally threaded tubular structure; Suction channel box is flat square structure; Nipple lower end and described suction channel box are fixed; Suction water channel outer box wall and nipple UNICOM;
Base angle seam brush holder is channel steel shape structure first brush groove, and some base angles seam brush holder is welded on suction channel box lower surface in parallel; The notch of this first brush groove is downward;
Wall brush holder is welded on the upper surface of suction channel box, and it comprises the second brush groove of some channel steel shapes, each other the first connection; The notch of described second brush groove is towards outside;
Vertical angle seam brush holder is welded on above wall brush holder, and also comprise the 3rd brush groove of some channel steel shapes, the 3rd brush groove downside is welded with wall brush holder upper side; Described 3rd brush groove notch towards corner, and with and the second brush groove of its wall brush holder welded between have angle.
Suction channel box is solid construction, have from its periphery to extend to center and with several water channels of nipple UNICOM.
Suction channel box be hollow-core construction, its periphery has several holes, several pipes from described hole to nipple extend and with its UNICOM.
Described brush article is plugged in described first brush groove, the second brush groove and the 3rd brush groove.
Described brush holder upper end for being provided with externally threaded circular tube structure, its overall tapered structure, its center is the tubular structure with upper end circular tube structure UNICOM;
Described brush holder lower surface is provided with bristle fixation hole configurations, and described bristle fixation hole configurations is circumferential some circles, often encloses the structure in some holes, each hole internal fixtion bristle, and the bristle in outer some collar aperture is longer than the bristle in the some collar aperture of internal layer.
Described collecting pipe comprises chimney filter; Described chimney filter comprises end construction, coarse filter screen structure, fie screen structure; Described end construction entirety is tubular structure; Its end is multidiameter structure, comprises little external diameter and large external diameter two parts; Coarse strainer is bundled into barreled structure, and is enclosed within outside little external diameter, by welding and chimney filter end winding support, forms coarse filter screen structure; Wrap up two-layer fie screen outside coarse strainer, circumferentially tightly wrapped by steel wire rope, and tighten sealing two ends, form fie screen structure.
Described coarse strainer specification is 5 ~ 160 orders; Described fie screen specification is 500 ~ 5000 orders.
Described collecting pipe also comprises body, outer tube, hydraulic quick coupler, the mouth of pipe; Body is enclosed within outside chimney filter, and the mouth of pipe is connected with body one end; Hydraulic quick coupler is connected with the body other end; The end construction of chimney filter and mouth of pipe homonymy; Described hydraulic quick coupler is connected with immersible pump lower end.
The invention has the beneficial effects as follows, the purification storing screen work storage sleeve pipe inwall for spent nuclear fuel in nuclear power plant provides a kind of safer effective underwater cleaning instrument, be convenient to clean storage sleeve pipe inwall, for the water outlet of spent fuel storage screen work, keep in, process or dispose and create safe condition.
Accompanying drawing explanation
Fig. 1 is the use schematic diagram of spent fuel storage sleeve pipe inner wall washing instrument of the present invention;
Fig. 2 is the wall angle brush schematic perspective view of spent fuel storage sleeve pipe inner wall washing instrument of the present invention;
Fig. 3 is the wall angle brush schematic diagram of spent fuel storage sleeve pipe inner wall washing instrument of the present invention;
Fig. 4 is the fillet brush schematic diagram of spent fuel storage sleeve pipe inner wall washing instrument of the present invention;
Fig. 5 is the wall angle brush compound brush holder schematic diagram of spent fuel storage sleeve pipe inner wall washing instrument of the present invention;
In figure: 1-wall angle is brushed; 101-first hydraulic quick coupler; 102-compound brush holder; 103-founds angle seam brush; 104-wall brush bar; 105-base angle seam brush; 2-fillet brush; 201-second hydraulic quick coupler; 202-round bottom brush holder; 203-bristle; 3-immersible pump; 4-storage sleeve pipe; 5-spent fuel storage screen work; 6-Spent Fuel Pool; 7-maintenance-bridge; 8-collecting pipe; 9-stock.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in detail:
As shown in Figure 1, deposited spent fuel storage rack 5 in Spent Fuel Pool 6, spent fuel storage rack 5 is made up of several storage sleeve pipes 4;
Spent fuel storage sleeve pipe inner wall washing instrument of the present invention, for cleaning storage sleeve pipe 4 inwall, it comprises maintenance-bridge 7 above Spent Fuel Pool 6 and stretches into stock in Spent Fuel Pool, is fixed on the impurity pumping components of this stock lower end, is fixed on the cleaning assembly of described impurity pumping components lower end;
Described impurity pumping components comprises immersible pump and collecting pipe; Described cleaning assembly comprises wall angle brush 1 and fillet brush 2;
Described wall angle brush 1 comprise the first hydraulic quick coupler 101, compound brush holder 102,4 vertical angle seam brushes, 103,4 wall brush bars, 104,1 base angle seam brush 105;
Compound brush holder 4 comprises nipple 106, vertical angle seam brush holder 107, wall brush holder 108, suction channel box 109, base angle seam brush holder 110;
The tubular structure that nipple 106 is externally threaded for upper end is provided with;
Suction channel box 109 is flat square structure; Nipple 106 lower end and described suction channel box 109 are fixed;
Suction channel box 109 can be solid construction, have from its periphery to extend to center and with several water channels of nipple 106 UNICOM;
Suction channel box 109 also can be hollow-core construction, its periphery has several holes, several pipes from described hole to nipple 106 extend and with its UNICOM;
Base angle seam brush holder 110 is channel steel shape structure first brush groove, and some base angles seam brush holder 110 is welded on suction channel box 109 lower surface in parallel; The notch of this first brush groove is downward;
Wall brush holder 108 is welded on the upper surface of suction channel box 109; It comprises the second brush groove of some channel steel shapes, each other the first connection; The notch of described second brush groove is towards outside;
Vertical angle seam brush holder 107 is welded on above wall brush holder 108, and also comprise the 3rd brush groove of some channel steel shapes, the 3rd brush groove downside is welded with wall brush holder 108 upper side; Described 3rd brush groove notch towards corner, and is 45 ° with the second brush groove angle with its wall brush holder 108 welded;
4 vertical angle seam brushes, 103,4 wall brushes bar 104,1 base angle seam brushes 105 are plugged in the first corresponding brush groove, the second brush groove and the 3rd brush groove respectively;
Nipple 11 is connected by the external screw thread on top and first piece of changing-over 101, and first piece of changing-over 101 is connected with collecting pipe 2 lower end; Collecting pipe 2 upper end is connected with immersible pump 3 lower end; Immersible pump 3 upper end is connected with stock 9 lower end;
Described collecting pipe 2 comprises body, outer tube, hydraulic quick coupler, chimney filter, the mouth of pipe;
Chimney filter comprises end construction, coarse filter screen structure, fie screen structure; Described end construction entirety is tubular structure; Its end is multidiameter structure, comprises little external diameter and large external diameter two parts; Coarse strainer is bundled into barreled structure, and is enclosed within outside little external diameter, by welding and chimney filter end winding support, forms coarse filter screen structure;
Wrap up two-layer fie screen outside coarse strainer, circumferentially tightly wrapped by steel wire rope, and tighten sealing two ends, form fie screen structure;
Described coarse strainer specification is 5 ~ 160 orders;
Described fie screen specification is 500 ~ 5000 orders;
Screen specification and the filtering accuracy table of comparisons
| Screen specification | Filtering accuracy μm |
| 5 orders | 4 |
| 160 orders | 0.1 |
| 500 orders | 25 |
| 5000 orders | 2.7 |
Body is enclosed within outside chimney filter, and the mouth of pipe is connected with body one end by screw thread; Hydraulic quick coupler is connected with the body other end by screw thread; The end construction of chimney filter and mouth of pipe homonymy;
Impeller in described immersible pump can carry out rotating and many grades of changed speed operations, inside and outside the collection mouth of pipe, form two-way water pressure difference; Impeller rotates forward, and is formed and collects the physical state of overpressure lower than collecting pipe external pressure, by target alien material through sucking in collecting pipe.
Fillet brush 2 comprises the second hydraulic quick coupler 201, round bottom brush holder 202, bristle 203;
Round bottom brush holder 202 upper end for being provided with externally threaded circular tube structure, its overall tapered structure, its center is the tubular structure with upper end circular tube structure UNICOM;
Round bottom brush holder 202 lower surface is provided with bristle fixation hole configurations, and described bristle fixation hole configurations is circumferential some circles, often encloses the structure in some holes, each hole internal fixtion bristle 203, and the bristle 203 in outer some collar aperture is long, and the bristle 203 in the some collar aperture of internal layer is short; This is to mate with geometry bottom spentnuclear fuel screen work storage sleeve pipe.
Described second hydraulic quick coupler 201 is connected with collecting pipe 2 lower end; Collecting pipe 2 upper end is connected with immersible pump 3 lower end; Immersible pump 3 upper end is connected with stock 9 lower end.
Work process:
Wall angle brush 1 extends+7.5m place under water by stock and sees accompanying drawing 1.Compound brush holder 102 is provided with 4 the vertical angle seam brush holders 107 can installing vertical angle seam brush 103,4 wall brush holders 108 that wall brush bar 104 can be installed and 2 base angles seam brush holders 110 that brush 105 is stitched at base angle can be installed.Above-mentioned three kinds of brush bars can insert in corresponding brush holder easily, and fix with split pin.The suction channel box 109 that compound brush holder 102 is arranged is convenient to be pumped to water body by the fifth wheel under brush in the collecting pipe in cleaning equipment.The nipple 106 that compound brush holder 102 is arranged is connected with hydraulic quick coupler 101, is convenient to be connected fast with collecting pipe interface.
Change wall angle brush 1 into round bottom brush 2, and extend+7.5m place under water by extension bar and see accompanying drawing 1.The size of round bottom brush holder 202 is arranged so that round bottom brush holder 202 can rotate in storage sleeve pipe, is beneficial to the attachment in bristle 203 brushing bottom interior wall.The stepped setting of bristle 203, makes bristle can better touch the bottom interior wall of storage sleeve pipe.
Claims (8)
1. a spent fuel storage sleeve pipe inner wall washing instrument, is characterized in that: comprise maintenance-bridge above Spent Fuel Pool and stretch into stock in Spent Fuel Pool, be fixed on the impurity pumping components of this stock lower end, be fixed on the cleaning assembly of described impurity pumping components lower end;
Described impurity pumping components comprises immersible pump and collecting pipe; Impeller in described immersible pump can carry out rotating and many grades of changed speed operations, inside and outside the collection mouth of pipe, form two-way water pressure difference; Impeller rotates forward, and is formed and collects the physical state of overpressure lower than collecting pipe external pressure, by target alien material through sucking in collecting pipe; Described collecting pipe inside is provided with filter structure, filters non-impurity substances for the impurity in water in collecting pipe;
Described cleaning assembly comprises brush holder and is arranged on the brush on brush holder, and described brush holder upper end is connected with described collecting pipe lower end; Described collecting pipe upper end is connected with immersible pump lower end, and described immersible pump upper end is connected with stock lower end.
2. according to spent fuel storage sleeve pipe inner wall washing instrument according to claim 1, it is characterized in that: described brush holder comprises nipple, vertical angle seam brush holder, wall brush holder, suction channel box, base angle seam brush holder;
Nipple is that upper end is provided with externally threaded tubular structure; Suction channel box is flat square structure; Nipple lower end and described suction channel box are fixed; Suction water channel outer box wall and nipple UNICOM;
Base angle seam brush holder is channel steel shape structure first brush groove, and some base angles seam brush holder is welded on suction channel box lower surface in parallel; The notch of this first brush groove is downward;
Wall brush holder is welded on the upper surface of suction channel box, and it comprises the second brush groove of some channel steel shapes, each other the first connection; The notch of described second brush groove is towards outside;
Vertical angle seam brush holder is welded on above wall brush holder, and also comprise the 3rd brush groove of some channel steel shapes, the 3rd brush groove downside is welded with wall brush holder upper side; Described 3rd brush groove notch towards corner, and with and the second brush groove of its wall brush holder welded between have angle.
3. according to spent fuel storage sleeve pipe inner wall washing instrument according to claim 2, it is characterized in that: suction channel box is solid construction, have from its periphery to extend to center and with several water channels of nipple UNICOM.
4., according to spent fuel storage sleeve pipe inner wall washing instrument according to claim 2, it is characterized in that: suction channel box be hollow-core construction, its periphery has several holes, several pipes from described hole to nipple extend and with its UNICOM.
5., according to spent fuel storage sleeve pipe inner wall washing instrument according to claim 1, it is characterized in that: described brush holder upper end for being provided with externally threaded circular tube structure, its overall tapered structure, its center is the tubular structure with upper end circular tube structure UNICOM;
Described brush holder lower surface is provided with bristle fixation hole configurations, and described bristle fixation hole configurations is circumferential some circles, often encloses the structure in some holes, each hole internal fixtion bristle, and the bristle in outer some collar aperture is longer than the bristle in the some collar aperture of internal layer.
6., according to spent fuel storage sleeve pipe inner wall washing instrument according to claim 1, it is characterized in that: described collecting pipe comprises chimney filter; Described chimney filter comprises end construction, coarse filter screen structure, fie screen structure; Described end construction entirety is tubular structure; Its end is multidiameter structure, comprises little external diameter and large external diameter two parts; Coarse strainer is bundled into barreled structure, and is enclosed within outside little external diameter, by welding and chimney filter end winding support, forms coarse filter screen structure; Wrap up two-layer fie screen outside coarse strainer, circumferentially tightly wrapped by steel wire rope, and tighten sealing two ends, form fie screen structure.
7. according to spent fuel storage sleeve pipe inner wall washing instrument according to claim 6, it is characterized in that: described coarse strainer specification is 5 ~ 160 orders; Described fie screen specification is 500 ~ 5000 orders.
8., according to spent fuel storage sleeve pipe inner wall washing instrument according to claim 1, it is characterized in that: described collecting pipe also comprises body, outer tube, hydraulic quick coupler, the mouth of pipe; Body is enclosed within outside chimney filter, and the mouth of pipe is connected with body one end; Hydraulic quick coupler is connected with the body other end; The end construction of chimney filter and mouth of pipe homonymy; Described hydraulic quick coupler is connected with immersible pump lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420858021.2U CN204583808U (en) | 2014-12-30 | 2014-12-30 | A kind of spent fuel storage sleeve pipe inner wall washing instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420858021.2U CN204583808U (en) | 2014-12-30 | 2014-12-30 | A kind of spent fuel storage sleeve pipe inner wall washing instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204583808U true CN204583808U (en) | 2015-08-26 |
Family
ID=53920009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420858021.2U Withdrawn - After Issue CN204583808U (en) | 2014-12-30 | 2014-12-30 | A kind of spent fuel storage sleeve pipe inner wall washing instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204583808U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105798026A (en) * | 2014-12-30 | 2016-07-27 | 中核武汉核电运行技术股份有限公司 | Inner wall cleaning tool for spent fuel storage sleeve |
-
2014
- 2014-12-30 CN CN201420858021.2U patent/CN204583808U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105798026A (en) * | 2014-12-30 | 2016-07-27 | 中核武汉核电运行技术股份有限公司 | Inner wall cleaning tool for spent fuel storage sleeve |
| CN105798026B (en) * | 2014-12-30 | 2018-05-18 | 中核武汉核电运行技术股份有限公司 | A kind of spent fuel storage sleeve pipe inner wall washing instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150826 Effective date of abandoning: 20180518 |