CN204182509U - A kind of spray gun special for large-scale radioactive cell decontamination - Google Patents
A kind of spray gun special for large-scale radioactive cell decontamination Download PDFInfo
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- CN204182509U CN204182509U CN201420569439.1U CN201420569439U CN204182509U CN 204182509 U CN204182509 U CN 204182509U CN 201420569439 U CN201420569439 U CN 201420569439U CN 204182509 U CN204182509 U CN 204182509U
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- rake teeth
- spray gun
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Abstract
The utility model relates to spentnuclear fuel post processing decontamination technology field, be specifically related to a kind of spray gun special for large-scale radioactive cell decontamination, object solves spray gun that existing nuclear facilities water under high pressure decontamination uses for inefficient problem during large-scale radioactive cell decontamination.It is characterized in that, it comprises fixed part, fluid transport parts and injecting-unit; Fixed part is arranged on the top of fluid transport parts, and injecting-unit is arranged on fluid transport lower.Use the spray gun special of the utility model design, shear hot cell carried out decontamination to post processing, result shows that shearing the dirty rate of hot cell whole removing reaches more than 90%, and the highest soil removal efficiency can reach 99.9%.
Description
Technical field
The utility model relates to spentnuclear fuel post processing decontamination technology field, is specifically related to a kind of spray gun special for large-scale radioactive cell decontamination.
Background technology
In power reactor spentnuclear fuel post-processing technology field, decontamination technology is a kind of very crucial technology.Decontamination method is mainly divided into two large classes: chemical method and Physical.Wherein water under high pressure decontamination method is a kind of conventional physical technology of removing pollution method.The advantage of water under high pressure decontamination: decontamination liquid amount ratio infusion method is low when tun, hot cell decontamination; Operating personnel's raying dosage is low compared with wipe method; The decontamination time is short; Decontamination expense is low.Spray gun is one of most important equipment of water under high pressure decontamination method, is the key factor affecting final clean effect.At present, the spray gun that the decontamination of nuclear facilities water under high pressure uses needs artificial direct control, and mostly is single rifle head spray gun, although clean effect is better, when for large-scale radioactive cell decontamination, efficiency is lower, if and hot cell dosage field is higher, the Contact of decontamination personnel should not be made.
Because the reprocessing facility of China is in test, debug phase at present, can not introduce impurity waste liquid, can not have a negative impact to after-treatment system to the decontamination of some main equipment rooms, therefore water under high pressure decontamination method is a kind of ideal decontamination method.Due to the particularity of reprocessing facility equipment, and hot, use high-pressure water spraying gun in the market can not meet the decontamination needs in the large-scale hot cell of post processing.
Summary of the invention
The purpose of this utility model solves spray gun that existing nuclear facilities water under high pressure decontamination uses for inefficient problem during large-scale radioactive cell decontamination, provide one and can solve large-scale hot cell high dose field large area decontamination problem, overall soil removal efficiency reaches the spray gun special for large-scale radioactive cell decontamination of more than 90%.
The utility model is achieved in that
For a spray gun special for large-scale radioactive cell decontamination, comprise fixed part, fluid transport parts and injecting-unit; Fixed part is arranged on the top of fluid transport parts, and injecting-unit is arranged on fluid transport lower.
Fixed part as above comprises link and remote-controlled operation clamp holder; Link is cylindrical, is fixedly connected on the upper surface of fluid transport section upper; Remote-controlled operation clamp holder entirety is cuboid, is fixedly connected on the front end face of fluid transport section upper.
Fluid transport parts as above comprise gun shot and isocon; Gun shot entirety is cylindrical, and vertically arrange, inside has through hole along its length, and this through hole is coaxial with the cylinder of gun shot; Upper surface, gun shot top is fixedly connected with link, and gun shot top front end face is fixedly connected with remote-controlled operation clamp holder; Isocon entirety is cylindrical, and arrange in the horizontal direction, inside has through hole along its length, and this through hole is coaxial with the cylinder of isocon; The center of isocon upper surface is fixedly connected with the lower surface of gun shot, and the through hole of isocon is connected with the through hole of gun shot.
Injecting-unit as above comprises rake teeth and lance head; Rake teeth entirety is cylindrical, and inside has through hole along its length, and this through hole is coaxial with the cylinder of rake teeth; Rake teeth upper surface is fixedly connected with the lower surface of isocon, and the through hole of rake teeth is connected with the through hole of isocon; Rake teeth has even number, and the axisymmetrical along gun shot distributes; Lance head comprises lance head connecting portion, changeover portion and ejection end; Lance head connecting portion entirety is cylindrical, and upper surface is fixedly connected with the lower surface of rake teeth; Changeover portion entirety is cylindrical, and upper surface is fixedly connected with the lower surface of lance head connecting portion; The diameter of changeover portion is less than the diameter of lance head connecting portion; Ejection end top is cylindrical, and bottom is inversed-cone shape; The upper surface on ejection end top is fixedly connected with the lower surface of changeover portion; Lance head connecting portion, changeover portion and ejection end are coaxial; Lance head inside has inversed-cone shape cavity, and the upper end rounded face of cavity is concordant with the upper surface of lance head connecting portion, and the diameter of rounded face is less than the diameter of lance head connecting portion upper surface, and the lower end of cavity extends to the top of ejection end; The cavity of lance head is connected with the through hole of rake teeth; The bottom of ejection end has liquid jet hole in the axial direction, and liquid jet hole runs through the bottom of ejection end and is connected with cavity.
Rake teeth as above has four.
Link as above, remote-controlled operation clamp holder, gun shot, isocon, rake teeth and lance head all adopt stainless steel material to realize.
The beneficial effects of the utility model are:
The utility model comprises fixed part, fluid transport parts and injecting-unit.Use the spray gun special of the utility model design, shear hot cell carried out decontamination to post processing, result shows that shearing the dirty rate of hot cell whole removing reaches more than 90%, and the highest soil removal efficiency can reach 99.9%.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of spray gun special for large-scale radioactive cell decontamination of the present utility model;
Fig. 2 is the sectional view of the lance head of a kind of spray gun special for large-scale radioactive cell decontamination of the present utility model.
Wherein: 1. link, 2. remote-controlled operation clamp holder, 3. gun shot, 4. isocon, 5. rake teeth, 6. lance head, 7. lance head connecting portion, 8. changeover portion, 9. ejection end, 10. cavity, 11. liquid jet holes.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described further.
For a spray gun special for large-scale radioactive cell decontamination, comprise fixed part, fluid transport parts and injecting-unit.Fixed part is arranged on the top of fluid transport parts, and injecting-unit is arranged on fluid transport lower.Fixed part is used for playing fixation to spray gun, and fluid transport parts are used at spray gun delivered inside highly pressurised liquid, and injecting-unit is used for highly pressurised liquid to spray.
As shown in Figure 1, fixed part comprises link 1 and remote-controlled operation clamp holder 2.Link 1 is cylindrical, is fixedly connected on the upper surface of fluid transport section upper.Link 1 makes high-tension apparatus for being fixed on by spray gun.Remote-controlled operation clamp holder 2 entirety is cuboid, is fixedly connected on the front end face of fluid transport section upper.Remote-controlled operation clamp holder 2 for spray gun is fixed on remote handling device, to realize the operated from a distance of operating personnel to spray gun.
Fluid transport parts comprise gun shot 3 and isocon 4.Gun shot 3 entirety is cylindrical, and vertically arrange, inside has through hole along its length, and this through hole is coaxial with the cylinder of gun shot 3.Upper surface, gun shot 3 top is fixedly connected with link 1, and gun shot 3 top front end face is fixedly connected with remote-controlled operation clamp holder 2.Lance tube 3 is for flowing to isocon 4 by highly pressurised liquid.Isocon 4 entirety is cylindrical, and arrange in the horizontal direction, inside has through hole along its length, and this through hole is coaxial with the cylinder of isocon 4.The center of isocon 4 upper surface is fixedly connected with the lower surface of gun shot 3, and the through hole of isocon 4 is connected with the through hole of gun shot 3.Isocon 4 is for flowing to injecting-unit by highly pressurised liquid.
Injecting-unit comprises rake teeth 5 and lance head 6.Rake teeth 5 entirety is cylindrical, and inside has through hole along its length, and this through hole is coaxial with the cylinder of rake teeth 5.Rake teeth 5 upper surface is fixedly connected with the lower surface of isocon 4, and the through hole of rake teeth 5 is connected with the through hole of isocon 4.Rake teeth 5 has even number, and the axisymmetrical along gun shot 3 distributes.In the present embodiment, rake teeth 5 has four.Rake teeth 5 is for sending highly pressurised liquid to lance head 6.
As shown in Figure 2, lance head 6 comprises lance head connecting portion 7, changeover portion 8 and ejection end 9.Lance head connecting portion 7 entirety is cylindrical, and upper surface is fixedly connected with the lower surface of rake teeth 5.Changeover portion 8 entirety is cylindrical, and upper surface is fixedly connected with the lower surface of lance head connecting portion 7.The diameter of changeover portion 8 is less than the diameter of lance head connecting portion 7.Ejection end 9 top is cylindrical, and bottom is inversed-cone shape.The upper surface on ejection end 9 top is fixedly connected with the lower surface of changeover portion 8.Lance head connecting portion 7, changeover portion 8 and ejection end 9 are coaxial.Lance head 6 inside has inversed-cone shape cavity 10, and the upper end rounded face of cavity 10 is concordant with the upper surface of lance head connecting portion 7, and the diameter of rounded face is less than the diameter of lance head connecting portion 7 upper surface, and the lower end of cavity 10 extends to the top of ejection end 9.The cavity 10 of lance head 6 is connected with the through hole of rake teeth 5.The bottom of ejection end 9 has liquid jet hole 11 in the axial direction, and liquid jet hole 11 runs through the bottom of ejection end 9 and is connected with cavity 10.Lance head 6 passes through the acting in conjunction of cavity 10 and liquid jet hole 11, controls spray penetration and the scattering area of highly pressurised liquid.
In the present embodiment, link 1, remote-controlled operation clamp holder 2, gun shot 3, isocon 4, rake teeth 5 and lance head 6 all adopt stainless steel material to realize.
During work, first being fixed on by link 1 makes on the drain pipe of high-tension apparatus, spray gun is sent into hot cell through hot cell manhole, remote-controlled operation clamp holder 2 is fixed on remote handling device, the Distance geometry angle of device adjustment spray gun and decontamination object by remote manipulation, high-tension apparatus is made in unlatching, highly pressurised liquid flows into each rake teeth 5 by lance tube 3 and isocon 4, highly pressurised liquid is flowed to lance head 6 by rake teeth 5, sprayed by the cavity 10 of lance head 6 and liquid jet hole 11, decontamination object is cleaned.
The utility model comprises fixed part, fluid transport parts and injecting-unit.Use the spray gun special of the utility model design, shear hot cell carried out decontamination to post processing, result shows that shearing the dirty rate of hot cell whole removing reaches more than 90%, and the highest soil removal efficiency can reach 99.9%.
Claims (6)
1. for a spray gun special for large-scale radioactive cell decontamination, it is characterized in that: it comprises fixed part, fluid transport parts and injecting-unit; Fixed part is arranged on the top of fluid transport parts, and injecting-unit is arranged on fluid transport lower.
2. the spray gun special for large-scale radioactive cell decontamination according to claim 1, is characterized in that: described fixed part comprises link (1) and remote-controlled operation clamp holder (2); Link (1) is cylindrical, is fixedly connected on the upper surface of fluid transport section upper; Remote-controlled operation clamp holder (2) entirety is cuboid, is fixedly connected on the front end face of fluid transport section upper.
3. the spray gun special for large-scale radioactive cell decontamination according to claim 1, is characterized in that: described fluid transport parts comprise gun shot (3) and isocon (4); Gun shot (3) entirety is cylindrical, and vertically arrange, inside has through hole along its length, and this through hole is coaxial with the cylinder of gun shot (3); Gun shot (3) upper surface, top is fixedly connected with link (1), and gun shot (3) top front end face is fixedly connected with remote-controlled operation clamp holder (2); Isocon (4) entirety is cylindrical, and arrange in the horizontal direction, inside has through hole along its length, and this through hole is coaxial with the cylinder of isocon (4); The center of isocon (4) upper surface is fixedly connected with the lower surface of gun shot (3), and the through hole of isocon (4) is connected with the through hole of gun shot (3).
4. the spray gun special for large-scale radioactive cell decontamination according to claim 1, is characterized in that: described injecting-unit comprises rake teeth (5) and lance head (6); Rake teeth (5) entirety is cylindrical, and inside has through hole along its length, and this through hole is coaxial with the cylinder of rake teeth (5); Rake teeth (5) upper surface is fixedly connected with the lower surface of isocon (4), and the through hole of rake teeth (5) is connected with the through hole of isocon (4); Rake teeth (5) has even number, and the axisymmetrical along gun shot (3) distributes; Lance head (6) comprises lance head connecting portion (7), changeover portion (8) and ejection end (9); Lance head connecting portion (7) entirety is cylindrical, and upper surface is fixedly connected with the lower surface of rake teeth (5); Changeover portion (8) entirety is cylindrical, and upper surface is fixedly connected with the lower surface of lance head connecting portion (7); The diameter of changeover portion (8) is less than the diameter of lance head connecting portion (7); Ejection end (9) top is cylindrical, and bottom is inversed-cone shape; The upper surface on ejection end (9) top is fixedly connected with the lower surface of changeover portion (8); Lance head connecting portion (7), changeover portion (8) and ejection end (9) are coaxial; Lance head (6) inside has inversed-cone shape cavity (10), the upper end rounded face of cavity (10) is concordant with the upper surface of lance head connecting portion (7), the diameter of rounded face is less than the diameter of lance head connecting portion (7) upper surface, and the lower end of cavity (10) extends to the top of ejection end (9); The cavity (10) of lance head (6) is connected with the through hole of rake teeth (5); The bottom of ejection end (9) has liquid jet hole (11) in the axial direction, and liquid jet hole (11) runs through the bottom of ejection end (9) and is connected with cavity (10).
5. the spray gun special for large-scale radioactive cell decontamination according to claim 4, is characterized in that: described rake teeth (5) has four.
6., according to the spray gun special for large-scale radioactive cell decontamination of claim 1-5 described in any one, it is characterized in that: described link (1), remote-controlled operation clamp holder (2), gun shot (3), isocon (4), rake teeth (5) and lance head (6) all adopt stainless steel material to realize.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420569439.1U CN204182509U (en) | 2014-09-29 | 2014-09-29 | A kind of spray gun special for large-scale radioactive cell decontamination |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420569439.1U CN204182509U (en) | 2014-09-29 | 2014-09-29 | A kind of spray gun special for large-scale radioactive cell decontamination |
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| CN204182509U true CN204182509U (en) | 2015-03-04 |
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| CN201420569439.1U Active CN204182509U (en) | 2014-09-29 | 2014-09-29 | A kind of spray gun special for large-scale radioactive cell decontamination |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109147973A (en) * | 2018-08-01 | 2019-01-04 | 深圳聚纵科技有限公司 | The method of radioactive substance is recycled after a kind of nuclear power plant's nuclear fuel rod use |
-
2014
- 2014-09-29 CN CN201420569439.1U patent/CN204182509U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109147973A (en) * | 2018-08-01 | 2019-01-04 | 深圳聚纵科技有限公司 | The method of radioactive substance is recycled after a kind of nuclear power plant's nuclear fuel rod use |
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