CN102785849A

CN102785849A - Storage tank of radioactive iodine 131

Info

Publication number: CN102785849A
Application number: CN201210328964XA
Authority: CN
Inventors: 赵立友; 黄川�
Original assignee: Gamma Ray Protection Equipment Technology (shanghai) Co Ltd
Current assignee: Gamma Ray Protection Equipment Technology (shanghai) Co Ltd
Priority date: 2012-09-07
Filing date: 2012-09-07
Publication date: 2012-11-21

Abstract

The invention discloses a storage tank of radioactive iodine 131, which comprises a tank body and an upper cover, wherein the tank body is of a circular table shape, an inner cavity of the tank body is of a rectangle, inner threads are arranged on the tank body, the upper cover is of the circular table shape, and outer threads are arranged on the upper cover; the outer threads on the upper cover and the inner threads on the tank body are meshed; and the tank body and the upper cover are formed from tungsten-based powder metallurgy through pressing injection. The tungsten-based powder metal is used as a material for making the tank, a powder metal pressing injection formation technique is adopted, and the inner cavity of the tank body is made into the rectangle, so that the bump and the vibration of a square utensil containing the iodine 131 in a transportation process are slowed down, accident volatilization and leakage accidents caused by vibration are effectively prevented, and the storage tank contributes to protecting the natural environment and the personal safety of workers.

Description

The storage tank of radioactivation iodine 131

Technical field

The present invention relates to the radiation proof utensil in radiation protection technology field, especially a kind of storage tank of radioactivation iodine 131.

Background technology

The application of radioactivation iodine 131 in medical treatment more and more widely owing to iodine 131 is volatile, and brings gross pollution to environment, so the radiological health work of iodine 131 in storage, transportation, branch process of assembling just seems particularly important; In the prior art, iodine 131 is to be stored in the pig, and tube cavity is circular; In storage, transportation, the problem of existence is, with the circular dishware that fills iodine 131; Be placed in the pig of round cavity, cause circular dishware in pig, can't fix, along with jolting of transportation; Circular dishware has aggravated the probability of the motion and the unexpected volatilization of iodine 131 in pig internal vibration and even rolling, is prone to cause leakage; In addition; Because there is poor rigidity, yielding in blue lead self; Be prone to the defective of oxidation, not environmental protection, for conservation of nature environment and staff's personal safety, if be desirable selection material with the holding vessel of tungsten making iodine 131; And the problem that exists is, tungsten machine up and manufacturing be difficulty very.　

Summary of the invention

The storage tank of a kind of radioactivation iodine 131 that the objective of the invention is to be directed against the deficiency of prior art and provide.The present invention selects the material of tungsten base powder metallurgy as the system jar for use; Adopt partial metallurgy injection-compression molding technology; The inner chamber body of tank body is made into rectangle, is used, slowed down square vessel jolting and vibrate in transportation with the square vessel that fill iodine 131; The accident volatilization and the leakage accident that have effectively prevented to be caused by vibration have been made contribution to conservation of nature environment and staff's personal safety.

The concrete technical scheme that realizes the object of the invention is:

A kind of storage tank of radioactivation iodine 131, its characteristics comprise tank body and loam cake, said tank body is the heavy wall open containers; Its profile is that round table-like, inner chamber body is a rectangle, and opening part is provided with stepped hole, and stepped hole is provided with negative thread; Loam cake is a truncated cone-shaped; Its end face is provided with dome, and dome is provided with outside thread, and the center of dome is provided with recessed circle; Said loam cake covers the opening part at tank body, and the engagement of the negative thread on outside thread on the loam cake dome and the tank body stepped hole; Described tank body and loam cake are by tungsten base powder metallurgy injection-compression molding.

The present invention selects the material of tungsten base powder metallurgy as the system jar for use; Adopt partial metallurgy injection-compression molding technology; The inner chamber body of tank body is made into rectangle; Slowed down square vessel the jolting and vibrate in transportation that fills iodine 131, effectively prevented the accident volatilization and the leakage accident that cause by vibration, contribution has been made in conservation of nature environment and staff's personal safety.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a running condition scheme drawing of the present invention.

The specific embodiment

Consult Fig. 1, the present invention includes tank body 1 and loam cake 2, said tank body 1 is the heavy wall open containers; Its profile is that round table-like, inner chamber body 11 is rectangle, and opening part is provided with stepped hole, and stepped hole is provided with negative thread 12; Loam cake 2 is a truncated cone-shaped; Its end face is provided with dome, and dome is provided with outside thread 21, and the center of dome is provided with recessed circle 22; Said loam cake 2 covers the opening part at tank body 1, and 12 engagements of the negative thread on outside thread on loam cake 2 domes 21 and tank body 1 stepped hole; Described tank body 1 and loam cake 2 are by tungsten base powder metallurgy injection-compression molding.

The present invention uses like this:

Consult Fig. 1, Fig. 2; Transportation: the square vessel 3 that will fill iodine 131; Be placed in the rectangular inner cavity body 11 of tank body 1, cover loam cake 2, make outside

thread

21 and 12 engagements of the negative thread on tank body 1 stepped hole on loam cake 2 domes; Be fixed on the special-purpose support tank body 1 and vanning at last, can entrucking transport; Owing to fill the square vessel 3 of iodine 131; Be placed on accurately in the rectangular inner cavity body 11 of tank body 1; Square vessel 3 relative fixed in tank body 1; Tank body 1 and special stand is fixing in addition, has slowed down square vessel the jolting and vibrate in transportation that fills iodine 131, has effectively prevented because the accident of the iodine 131 that the vibration of transportation causes is volatilized and leakage accident.

The selecting for use and making of new material of the present invention: tank body 1 of the present invention and loam cake 2 are by tungsten base powder metallurgy injection-compression molding.Experiment shows that tungsten is superior to blue lead to the radiation resistance of iodine 131, and for conservation of nature environment and staff's safety, the holding vessel of making iodine 131 with tungsten is even more ideal; The employing of tungsten base powder metallurgy injection-compression molding technology makes 1 injection-compression moldings of tank body, solved the difficult problem that rectangular inner cavity body 11 is difficult to machine up and tungsten cutting ability difference.

The placement of square vessel and taking-up: the rectangular inner cavity body 11 of tank body 1 of the present invention; Its height is less than the height overall of square vessel 3; When negative thread 12 engagements on the outside thread on loam cake 2 domes 21 and tank body 1 stepped hole, place the top of the square vessel 3 in the cavity 11 just in time to be positioned at the recessed circle 22 of loam cake 2, open loam cake 2; Promptly expose at the top of square vessel 3, is convenient to the placement and the taking-up of square vessel 3.

Claims

1. the storage tank of a radioactivation iodine 131 is characterized in that it comprises tank body (1) and loam cake (2), and said tank body (1) is the heavy wall open containers; Its profile is that round table-like, inner chamber body (11) is rectangle, and opening part is provided with stepped hole, and stepped hole is provided with negative thread (12); Loam cake (2) is a truncated cone-shaped; Its end face is provided with dome, and dome is provided with outside thread (21), and the center of dome is provided with recessed circle (22); Said loam cake (2) covers the opening part in tank body (1), and the engagement of the negative thread (12) on outside thread (21) on loam cake (2) dome and tank body (1) stepped hole.

2. the storage tank of radioactivation iodine 131 according to claim 1 is characterized in that tank body (1) and loam cake (2) are by tungsten base powder metallurgy injection-compression molding.