CN212208928U - Manipulator penetration piece mounting structure for metal hot chamber - Google Patents
Manipulator penetration piece mounting structure for metal hot chamber Download PDFInfo
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- CN212208928U CN212208928U CN202021035144.8U CN202021035144U CN212208928U CN 212208928 U CN212208928 U CN 212208928U CN 202021035144 U CN202021035144 U CN 202021035144U CN 212208928 U CN212208928 U CN 212208928U
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Abstract
The utility model discloses a metal is manipulator through parts mounting structure for hot chamber, its characterized in that: the method comprises the following steps that a hot area steel plate, a gamma shield, a neutron shield and a cold area steel plate are sequentially and vertically arranged on a floor of a hot chamber from inside to outside, a certain distance is reserved between the hot area steel plate and the gamma shield, the neutron shield and the cold area steel plate are adjacent to each other, a cavity is arranged in the neutron shield, and a manipulator penetrating piece which is transversely arranged sequentially penetrates through the cold area steel plate, the neutron shield cavity, the gamma shield and the hot area steel plate from outside to inside. The utility model discloses a manipulator penetration piece mounting structure for metal hot chamber adopts hot side flange, hot chamber flange and strengthens the flange in order to increase the area of stress, reduces local stress concentration, protection hot chamber integrality and leakproofness.
Description
Technical Field
The utility model relates to a manipulator through-member installation field for the hot room of nuclear industry, specific manipulator through-member mounting structure for metal hot room in specific theory relate to this field.
Background
The hot chamber is a shielded small chamber for carrying out high radioactivity tests and operations, is isolated from the surrounding environment, is provided with a stainless steel covering surface on the inner wall for convenient washing and decontamination, and is provided with a heavy concrete structure on the outer wall for protecting gamma radioactivity. The general requirements for a hot cell are therefore:
1. has the shielding function: according to the thermal chamber radiation source, the thermal chamber is generally required to be capable of shielding a certain dose of gamma ray or neutron radiation;
2. has sealing effect, and can prevent radioactive gas, alpha-ray;
3. the hot cell is capable of withstanding a certain load.
The front wall of the hot chamber is provided with a sight glass of lead glass or high-density liquid and a manipulator for remote operation. The manipulator for the hot chamber generally comprises a power manipulator, a master-slave manipulator and a joint manipulator, wherein the power manipulator is generally arranged at the top of the hot chamber, the master-slave manipulator and the joint manipulator are generally arranged in a cold area (operation area) of the front wall of the hot chamber, but any manipulator needs to use a penetrating piece to connect mechanical parts inside the hot chamber and mechanical parts outside the hot chamber in a mechanical or electric connection mode, so that an operator can operate and control the manipulator in the cold area (operation area) outside the hot chamber.
The inner wall of a common heavy concrete hot chamber is usually coated with stainless steel, so that the hot chamber is convenient to wash and decontaminate. But the investment of the concrete hot room at the early stage is large, the retirement workload of the hot room at the later stage is large, and the amount of polluted waste is large.
Taking a master-slave manipulator as an example, the mounting and penetrating piece (wall pipe) connecting mode of the heavy concrete hot chamber manipulator is shown in fig. 1, along with the rapid development of the nuclear industry in China, the nation puts higher safety and retirement requirements on the construction of a hot chamber, and requires that a newly-built hot chamber is easy to retire and radioactive waste generated by retirement of the hot chamber is minimized.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a manipulator penetration piece mounting structure for metal hot chamber is provided.
In order to solve the technical problem, the utility model discloses a following technical scheme:
the utility model provides a manipulator penetration piece mounting structure for metal hot chamber which improves and lies in: a hot-zone steel plate, a gamma shield, a neutron shield and a cold-zone steel plate are vertically arranged on the floor of the hot chamber from inside to outside in turn, wherein a certain distance is left between the hot-zone steel plate and the gamma shield, the neutron shield and the cold-zone steel plate are adjacent to each other, a cavity is arranged in the neutron shield, a manipulator penetration piece which is transversely arranged penetrates through the cold zone steel plate, the neutron shield cavity, the gamma shield and the hot zone steel plate from outside to inside in sequence, a hot side flange is fixedly arranged at the end part of the hot chamber side of the manipulator penetrating piece, a hot chamber flange is fixedly arranged on the hot zone steel plate opposite to the hot side flange, the hot side flange is fixedly connected with the hot chamber flange through a connecting bolt, and a reinforcing flange adjacent to the gamma shield is fixedly arranged at the position of the neutron shield cavity on the manipulator penetrating piece, and the reinforcing flange is fixedly connected with the gamma shield through a connecting bolt.
Further, the hot-zone steel plate is stainless steel, the gamma shield is carbon steel, the neutron shield is boron-containing polyethylene, and the cold-zone steel plate is carbon steel; the flange at the hot side is made of stainless steel, the flange of the hot chamber is made of stainless steel, the reinforcing flange is made of carbon steel, the manipulator penetrating piece is made of carbon steel, and the connecting bolt is made of stainless steel.
Furthermore, the hot area steel plate and the gamma shield are permanently and fixedly connected with the floor of the hot chamber in a non-detachable way; the neutron shield and the cold area steel plate are detachably connected with the floor of the hot chamber.
Furthermore, the hot side flange and the reinforcing flange are both welded on the manipulator penetration piece and are both provided with bolt holes for connecting bolts to pass through,
furthermore, one side of the hot-zone steel plate is a hot-side flange, and the other side of the hot-zone steel plate is a hot-chamber flange.
Further, a hot chamber flange is welded to the hot zone steel plate.
Further, the thickness of the reinforcing flange is equal to the thickness of the gamma shield.
Furthermore, the reinforcing flange is formed by combining two halves of split structures, and carbon steel adjusting bolts are arranged on the two halves of split structures.
The utility model has the advantages that:
the utility model discloses a manipulator penetration piece mounting structure for metal hot chamber adopts hot side flange, hot chamber flange and strengthens the flange in order to increase the area of stress, reduces local stress concentration, protection hot chamber integrality and leakproofness. Adjusting bolts are arranged on the two half split structures of the reinforcing flange, the mounting positions can be automatically adjusted through the adjusting bolts, the requirements on the machining flatness and the mounting position precision of the hot-zone steel plate and the gamma shield are not high, the self-adaption is strong, and the method has strong practical instructive and reference significance on the construction of the existing metal hot chamber engineering.
Drawings
FIG. 1 is a schematic view of a prior art heavy concrete hot chamber robot installation and connection of penetrations (wall tubes);
fig. 2 is a schematic view of the mounting structure disclosed in embodiment 1 of the present invention;
fig. 3 is a partially enlarged view of a portion B in fig. 2;
fig. 4 is a schematic view of the mounting structure disclosed in embodiment 2 of the present invention;
fig. 5 is a partially enlarged view of a portion C in fig. 4.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
According to the construction requirements of a certain hot chamber, a power manipulator, a master-slave manipulator and a joint manipulator are required to perform precise operations such as operation, start-stop, overhaul and maintenance, part replacement and the like on hot chamber process equipment. The manipulator through-wall assembly is directly sleeved inside the manipulator through-wall assembly, the manipulator through-wall assembly is convenient to fix and support, the manipulator through-wall assembly is protected, and the manipulator through-wall assembly can have a certain degree of freedom.
The hot cell is required to have excellent sealability, prevent leakage of the radiation source, protect operators, and prevent environmental pollution. Wherein the radiation dose rates of the thermal chamber are given in the following table:
| radiation resistant dose rates (μ Gy/h) | Dose of radiation in Hot Room (Gy) | |
| Neutron of neutron | Not less than 1.2E +04 | Not less than 5E +03 |
| γ | Not less than 1.5E +07 | Not less than 1E +06 |
Consequently, in order to shield the radiation, protect cold district operating personnel's safety to the minimum principle of waste amount when responding the hot room and decommissioning, through the radiation protection calculation, the utility model designs a following manipulator penetration piece mounting structure for metal hot room.
Because the standard weight of a general manipulator is 450kg, local stress concentration can occur only by supporting of a gamma shield, on one hand, the damage of a structural member of the hot chamber is accelerated, the service life is shortened, on the other hand, the sealing performance of the hot chamber is damaged, and the radioactive source is leaked. Therefore, it is necessary to install a reinforcing flange on the robot penetration member and fixedly connect the reinforcing flange to the γ shield by means of a connecting bolt, so as to increase the stress area, reduce the local stress concentration, and protect the integrity and the sealing performance of the thermal chamber. Because the hot area steel plate is only a stainless steel plate, if the hot area steel plate is directly connected with the hot side flange through bolts, stress concentration is easy to occur, the deformation of the inner shell of the hot chamber is large, and the structure and the sealing performance of the hot chamber are damaged, so that the hot chamber flange is fixedly arranged on the hot area steel plate opposite to the hot side flange. The connecting bolts support the two ends of the manipulator penetration piece on the hot chamber by a reinforcing flange and a hot side flange respectively.
In this embodiment, the hot-zone steel plate is stainless steel, has acid corrosion resistance and strong radiation resistance, and is convenient for cleaning and decontamination of the hot chamber, the gamma shield is carbon steel, the neutron shield is boron-containing polyethylene plastic, and the cold-zone steel plate is carbon steel; the hot side flange, the hot chamber flange and the hot zone steel plate are made of stainless steel and are made of the same material; the reinforcing flange and the manipulator penetration piece are not directly contacted with a radiation source, so the material is carbon steel; the connecting bolt is made of stainless steel.
Furthermore, the hot area steel plate and the gamma shield are permanently and fixedly connected with the floor of the hot chamber in a non-detachable way; the neutron shield and the cold area steel plate are detachably connected with the floor of the hot chamber, so that the neutron shield can be replaced periodically.
Furthermore, the hot side flange and the reinforcing flange are both welded on the manipulator penetration piece and are both provided with bolt holes for connecting bolts to pass through,
furthermore, one side of the hot-zone steel plate is a hot-side flange, and the other side of the hot-zone steel plate is a hot-chamber flange.
Furthermore, the hot chamber flange is welded on a hot zone steel plate, so that the bearing capacity and the reliability are improved.
Further, the thickness of the reinforcing flange is equal to the thickness of the gamma shield.
Example 2, as shown in fig. 4 to 5, this example is different from example 1 in that: the reinforcing flange is formed by combining two halves of split structures, and carbon steel adjusting bolts 11 are arranged on the two halves of split structures.
In order to solve the problem, after the hot-side flange and the hot chamber flange are fixedly connected together, the length of a screw of the adjusting bolt can be adjusted so as to enable the head of the adjusting bolt to abut against the gamma shield, and therefore the reinforcing flange is fixed to the gamma shield.
Claims (8)
1. The utility model provides a manipulator penetration piece mounting structure for metal hot chamber which characterized in that: a hot-zone steel plate, a gamma shield, a neutron shield and a cold-zone steel plate are vertically arranged on the floor of the hot chamber from inside to outside in turn, wherein a certain distance is left between the hot-zone steel plate and the gamma shield, the neutron shield and the cold-zone steel plate are adjacent to each other, a cavity is arranged in the neutron shield, a manipulator penetration piece which is transversely arranged penetrates through the cold zone steel plate, the neutron shield cavity, the gamma shield and the hot zone steel plate from outside to inside in sequence, a hot side flange is fixedly arranged at the end part of the hot chamber side of the manipulator penetrating piece, a hot chamber flange is fixedly arranged on the hot zone steel plate opposite to the hot side flange, the hot side flange is fixedly connected with the hot chamber flange through a connecting bolt, and a reinforcing flange adjacent to the gamma shield is fixedly arranged at the position of the neutron shield cavity on the manipulator penetrating piece, and the reinforcing flange is fixedly connected with the gamma shield through a connecting bolt.
2. The robot penetration mounting structure for a metal hot chamber according to claim 1, wherein: the hot-zone steel plate is stainless steel, the gamma shield is carbon steel, the neutron shield is boron-containing polyethylene, and the cold-zone steel plate is carbon steel; the flange at the hot side is made of stainless steel, the flange of the hot chamber is made of stainless steel, the reinforcing flange is made of carbon steel, the manipulator penetrating piece is made of carbon steel, and the connecting bolt is made of stainless steel.
3. The robot penetration mounting structure for a metal hot chamber according to claim 1, wherein: the hot area steel plate and the gamma shield are permanently and fixedly connected with the floor of the hot chamber in a non-detachable way; the neutron shield and the cold area steel plate are detachably connected with the floor of the hot chamber.
4. The robot penetration mounting structure for a metal hot chamber according to claim 1, wherein: the hot side flange and the reinforcing flange are both welded on the manipulator penetration piece and are provided with bolt holes for connecting bolts to penetrate through.
5. The robot penetration mounting structure for a metal hot chamber according to claim 1, wherein: one side of the hot zone steel plate is a hot side flange, and the other side of the hot zone steel plate is a hot chamber flange.
6. The robot penetration mounting structure for a metal hot chamber according to claim 1, wherein: the hot chamber flange is welded to the hot zone steel plate.
7. The robot penetration mounting structure for a metal hot chamber according to claim 1, wherein: the thickness of the reinforcing flange is equal to the thickness of the gamma shield.
8. The robot penetration mounting structure for a metal hot chamber according to claim 1, wherein: the reinforcing flange is formed by combining two halves of split structures, and carbon steel adjusting bolts are arranged on the two halves of split structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021035144.8U CN212208928U (en) | 2020-06-08 | 2020-06-08 | Manipulator penetration piece mounting structure for metal hot chamber |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021035144.8U CN212208928U (en) | 2020-06-08 | 2020-06-08 | Manipulator penetration piece mounting structure for metal hot chamber |
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| Publication Number | Publication Date |
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| CN212208928U true CN212208928U (en) | 2020-12-22 |
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| CN202021035144.8U Active CN212208928U (en) | 2020-06-08 | 2020-06-08 | Manipulator penetration piece mounting structure for metal hot chamber |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114770551A (en) * | 2022-05-20 | 2022-07-22 | 中国原子能科学研究院 | Retired robot |
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2020
- 2020-06-08 CN CN202021035144.8U patent/CN212208928U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114770551A (en) * | 2022-05-20 | 2022-07-22 | 中国原子能科学研究院 | Retired robot |
| CN114770551B (en) * | 2022-05-20 | 2024-02-20 | 中国原子能科学研究院 | Retired robot |
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