阅读说明：本技术 高辐射区远程维护用的二极磁铁设备 (Dipolar magnet equipment for remote maintenance of high radiation area ) 是由 贺华艳 刘磊 于永积 宁常军 吴锡 于 2020-07-02 设计创作，主要内容包括：本发明公开一种高辐射区远程维护用的二极磁铁设备,包括线圈装配体、铁芯装配体和导向机构,线圈装配体呈可拆卸式安装于铁芯装配体中部,铁芯装配体与线圈装配体的相接之处设有导向机构,导向机构沿竖直方向引导线圈装配体进行拆卸或安装。本高辐射区远程维护用的二极磁铁设备通过设置相对独立的线圈装配体和铁芯装配体,避免了采用传统磁铁设备中线圈和铁芯为一体式固定结构的形式,可便于二极磁铁设备的维护或局部更换,实现远程操作,适用于高辐射区域内设备的定位安装,避免操作人员长时间暴露于高辐射环境中,提高操作的安全性。(The invention discloses dipolar magnet equipment for remote maintenance of a high radiation area, which comprises a coil assembly body, an iron core assembly body and a guide mechanism, wherein the coil assembly body is detachably arranged in the middle of the iron core assembly body, the guide mechanism is arranged at the joint of the iron core assembly body and the coil assembly body, and the guide mechanism guides the coil assembly body to be detached or installed along the vertical direction. This dipolar magnet equipment of high radiation district remote maintenance usefulness has avoided adopting traditional magnet equipment well coil and the form of iron core formula fixed knot structure as an organic whole through setting up the relatively independent coil assembly body and iron core assembly body, and maintenance or local change of dipolar magnet equipment of can being convenient for realizes remote operation, is applicable to the location installation of high radiation district intra-area equipment, avoids operating personnel to expose for a long time in the high radiation environment, improves the security of operation.)

1. Dipolar magnet equipment of high radiation area remote maintenance usefulness, its characterized in that includes the coil assembly body, the iron core assembly body and guiding mechanism, and the coil assembly body is detachable and installs in iron core assembly body middle part, and the iron core assembly body is equipped with guiding mechanism with the department of meeting of the coil assembly body, and guiding mechanism follows vertical direction guide coil assembly body and dismantles or install.

2. The dipole magnet device for remote maintenance of high radiation area according to claim 1, wherein said coil assembly comprises a coil and a vacuum box, the vacuum box is H-shaped as a whole and has an upper installation space and a lower installation space, and the coil is disposed in the upper installation space and the lower installation space, respectively.

3. The dipole magnet apparatus for remote maintenance of high radiation area according to claim 2, wherein said coil comprises a coil conductor and epoxy resin poured outside the coil conductor, and a cooling water path connected to the coil conductor is extended outward at the pouring outlet of the epoxy resin.

4. The dipolar magnet device for remote maintenance of high radiation region of claim 3, characterized in that the cooling water path is extended to the outside of the ordinary tunnel shield in labyrinth shape, and the end of the cooling water path is further provided with a water inlet and outlet distributor.

5. The dipole magnet device for remote maintenance of high radiation area according to claim 2, wherein the vacuum box has a beam passage in the middle, the upper and lower installation spaces are symmetrically distributed on the upper and lower sides of the beam passage, the coil is installed in the upper or lower installation space, and a fixed guide plate is further installed inside the coil, and the upper and lower ends of the fixed guide plate are respectively connected to the vacuum box.

6. The dipole magnet apparatus for remote maintenance of high radiation area according to claim 2, wherein the vacuum box is further provided with a first hanging ring at the top thereof.

7. The dipole magnet device for remote maintenance of high radiation area according to claim 1, wherein said iron core assembly comprises an upper iron core, a lower iron core, a first side iron core, a second side iron core and an iron core bottom plate, the upper iron core and the lower iron core are symmetrically arranged, the first side iron core and the second side iron core are respectively arranged at two sides of the upper iron core and the lower iron core, and the bottom of the lower iron core is mounted on the ground support platform through the iron core bottom plate.

8. The dipole magnet device for remote maintenance of high radiation area according to claim 7, wherein said upper core and said lower core are respectively T-shaped and comprise a transverse portion and a longitudinal portion connected to each other, and after said coil assembly is assembled, said transverse portion is located at the top or bottom of said coil assembly, and said longitudinal portion is embedded in said coil assembly.

9. The dipole magnet apparatus for remote maintenance of high radiation area according to claim 8, wherein said upper core is further provided with a second hanging ring at a top surface of a lateral portion thereof.

10. The dipole magnet device for remote maintenance of high radiation area according to claim 7, wherein said guiding mechanism comprises a first longitudinal guide plate, a second longitudinal guide plate, a third longitudinal guide plate, a first transverse guide plate and a second transverse guide plate, the first longitudinal guide plate and the second longitudinal guide plate are respectively disposed at two sides of the first side core and extend to the outside of the lower core, the third longitudinal guide plate is disposed at one side of the second side core and extend to the outside of the lower core; a first transverse guide plate is arranged on one side of the lower part of the first longitudinal guide plate, and an L-shaped structure positioned on one side of the iron core assembly body is formed between the first longitudinal guide plate and the first transverse guide plate; a second transverse guide plate is arranged between the lower parts of the second longitudinal guide plate and the third longitudinal guide plate, and a concave structure positioned on the other side of the iron core assembly body is formed among the second longitudinal guide plate, the second transverse guide plate and the third longitudinal guide plate; and guide rails are respectively arranged at the joints of the first longitudinal guide plate, the second longitudinal guide plate and the third longitudinal guide plate and the coil assembly body.

Technical Field

The invention relates to the technical field of equipment installation in a high-radiation area, in particular to dipolar magnet equipment for remote maintenance in the high-radiation area.

Background

Magnets are one of the important parts in accelerators. The charged particles need to be constantly subjected to an acceleration force to obtain high energy on one hand, and are limited to a given central orbital motion by a certain control force on the other hand. The force for achieving the above condition is actually a force of an electromagnetic field to the charged particles, i.e., an electric field force and a magnetic field force. High energy accelerators generally require the use of different types of magnets and magnetic fields established within the working air gap of the magnets, depending on the different requirements for controlling particle motion. The dipolar magnet is a kind of bending magnet, and establishes a uniformly distributed magnetic field in a certain space range. The motion orbit of the particles in the uniform magnetic field is an arc line, namely the particles are bent along the beam orbit at a certain angle.

In order to prolong the service life of the magnet equipment as much as possible, the common mode is to use radiation-resistant materials as much as possible for all parts forming the magnet equipment, such as a magnet yoke made of DT4 iron, a fixed structural member made of carbon steel or G10 glass fiber resin, and a lead made of TU1 oxygen-free copper, wherein a coil wound by oxygen-free copper TU1 is generally cast and cured by using glass fiber and epoxy resin to realize electrical insulation, and the highest radiation-resistant service life of the conventional epoxy resin formula at home and abroad is 2 × 10⁶Gy, which is far lower than that of TU1 oxygen-free copper and other materials. Therefore, magnetism for high radiation regionThe coil of the iron equipment is still the weakest and vulnerable part, and the maintenance and replacement frequency is the highest.

Generally, the maintenance of the magnet device installed and operated by the accelerator is mainly completed by manual operation, and the radiation dose of operators far exceeds the safety limit for the working environment in a high radiation area (such as a neutron atmospheric spectrometer tunnel and the like). Therefore, the magnet equipment in the high-radiation area is remotely installed and disassembled for maintenance, the time of exposing the operating personnel in the high-radiation environment is shortened, and the improvement of the working environment of manual operation has important significance.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a dipolar magnet device for remote maintenance of a high-radiation area, which can be quickly disassembled and assembled, is convenient to maintain or replace in the high-radiation area and can improve the operation safety.

The technical scheme of the invention is as follows: the utility model provides a dipolar magnet equipment that high radiation area remote maintenance used, includes the coil assembly body, the iron core assembly body and guiding mechanism, the coil assembly body is detachable and installs in iron core assembly body middle part, and the department of meeting of the iron core assembly body and the coil assembly body is equipped with guiding mechanism, and guiding mechanism is followed vertical direction guide coil assembly body and is dismantled or install. Wherein, the bottom of iron core assembly body is installed on ground support mesa, the installation benchmark when as remote maintenance.

The coil assembly body includes coil and vacuum box, and the vacuum box is whole to be the H type, is equipped with upper portion installation space and lower part installation space, sets up the coil respectively in upper portion installation space and the lower part installation space.

The coil comprises a coil conductor and epoxy resin poured outside the coil conductor, and a cooling water path connected with the coil conductor extends outwards at a pouring outlet of the epoxy resin. The coil conductor is formed by winding an oxygen-free copper TU1 conductor, and then the exterior of the coil conductor is poured and cured by adopting an epoxy resin material, so that the integral structure of the coil is formed. The insulation reliability of the coil as the excitation loop of the iron core determines the reliability of the magnet operation, but at present, the cured insulation material of the coil is epoxy resin, which has short radiation life and is easy to damage, so that the coil assembly body is often required to be maintained or replaced.

The coil conductor is a hollow conductor, the interior of the hollow conductor is communicated with a cooling water path, and deionized water is circularly introduced from the cooling water path to cool the coil so as to limit the temperature rise amplitude of the coil within a rated range.

The cooling water path extends to the outside of the shielding body of the ordinary instrument tunnel in a labyrinth shape, so that a worker can conveniently perform leakage detection and maintenance on the coil outside the shielding body, and the labyrinth-shaped cooling water path can effectively prevent radiation inside the shielding body from directly reaching the outside of the tunnel; the tail end of the cooling water path is also provided with a water inlet distributor and a water outlet distributor, the water inlet distributor and the water outlet distributor are both positioned outside the shielding body, deionized water for cold water enters the cooling water path from the water inlet distributor, and is sent out from the water outlet distributor after cooling the coil, so that a loop is formed.

The middle part of the vacuum box is provided with a beam current channel, the upper installation space and the lower installation space are symmetrically distributed on the upper side and the lower side of the beam current channel, the coil is installed in the upper installation space or the lower installation space, the inner side of the coil is further provided with a fixed guide plate, and the upper end and the lower end of the fixed guide plate are respectively connected with the vacuum box. The vacuum box is formed by welding 316L stainless steel materials.

The top of the vacuum box is also provided with a first hanging ring. After coil and vacuum box fixed mounting, the coil assembly body carries out long-range installation or dismantlement as a whole, and when dipolar magnet equipment need carry out remote maintenance or change, the first rings of accessible hoist and mount the coil assembly body, carry out remote operation.

The iron core assembly body includes iron core, lower iron core, first side iron core, second side iron core and iron core bottom plate, goes up the iron core and sets up with lower iron core symmetry, and goes up the both sides of iron core and lower iron core and set up first side iron core and second side iron core respectively, and iron core bottom passes through the iron core bottom plate and installs on the supporting bench of ground.

Go up the iron core and be the T type respectively with lower iron core, including horizontal portion and the vertical portion that is connected, after the coil assembly body installation, horizontal position is in the top or the bottom of coil assembly body, and vertical portion imbeds in the coil assembly body.

The upper iron core, the lower iron core, the first side iron core and the second side iron core are respectively processed and manufactured by adopting a DT4 iron material, and two side faces of the longitudinal part of the upper iron core and the lower iron core are respectively provided with a guide rail matched with a fixed guide plate on the inner side of a coil in the vacuum box. During installation, the lower iron core is fixedly installed on the ground supporting platform through the iron core bottom plate and serves as an installation reference of the coil assembly body and the upper iron core during remote maintenance, and after the coil assembly body is installed in place, the upper iron core is installed and embedded into the coil through the guide effect of the guide rail and the fixed guide plate.

The top surface of the transverse part of the upper iron core is also provided with a second hanging ring, so that the upper iron core is hoisted when the dipolar magnet equipment is maintained remotely.

The guide mechanism comprises a first longitudinal guide plate, a second longitudinal guide plate, a third longitudinal guide plate, a first transverse guide plate and a second transverse guide plate, the first longitudinal guide plate and the second longitudinal guide plate are respectively arranged on two sides of the first side iron core and extend to the outer side of the lower iron core, and the third longitudinal guide plate is arranged on one side of the second side iron core and extend to the outer side of the lower iron core; a first transverse guide plate is arranged on one side of the lower part of the first longitudinal guide plate, and an L-shaped structure positioned on one side of the iron core assembly body is formed between the first longitudinal guide plate and the first transverse guide plate; a second transverse guide plate is arranged between the lower parts of the second longitudinal guide plate and the third longitudinal guide plate, and a concave structure positioned on the other side of the iron core assembly body is formed among the second longitudinal guide plate, the second transverse guide plate and the third longitudinal guide plate; and guide rails are respectively arranged at the joints of the first longitudinal guide plate, the second longitudinal guide plate and the third longitudinal guide plate and the coil assembly body. All guide plates forming the guide mechanism are made of Q235 carbon steel materials, and when the guide mechanism is used, the guide mechanism guides the installation positions of the coil assembly body and the upper iron core which are hoisted remotely, so that the coil assembly body and the upper iron core can be repeatedly installed to a target position with high precision.

When the dipolar magnet equipment of above-mentioned high radiation area remote maintenance usefulness is installed, lower iron core in the iron core assembly body is located ground brace table through the iron core bottom plate, installation benchmark when regard as remote maintenance, guiding mechanism installs in iron core down, the outside of first side iron core and second side iron core, with ground brace table welded fastening, the coil assembly body passes through guiding mechanism and installs to iron core down, then iron core in the embedding of coil assembly body, the cooling water route on the coil is labyrinth and extends to the external portion of prospectus tunnel shield, carry out at last the hookup and the fixing of intaking water injection mandrel and play water injection mandrel at the both ends in cooling water route, realize magnet cooling water path connection. When the remote maintenance is needed, under the guiding action of the guiding mechanism, the upper iron core and the old coil assembly body are sequentially guided and disassembled, and then the new coil assembly body and the upper iron core are sequentially guided and assembled.

Compared with the prior art, the invention has the following beneficial effects:

this dipolar magnet equipment of high radiation district remote maintenance usefulness has avoided adopting traditional magnet equipment well coil and the form of iron core formula fixed knot structure as an organic whole through setting up the relatively independent coil assembly body and iron core assembly body, and maintenance or local change of dipolar magnet equipment of can being convenient for realizes remote operation, is applicable to the location installation of high radiation district intra-area equipment, avoids operating personnel to expose for a long time in the high radiation environment, improves the security of operation.

This dipolar magnet equipment that high radiation district remote maintenance used simple structure, convenient to use, because the resistant radiation life-span of the iron core assembly body compares the resistant radiation life-span of the coil assembly body and wants the long many, consequently, through setting up relatively independent coil assembly body and iron core assembly body, the maintenance or the local change of dipolar magnet equipment of can being convenient for on the one hand, on the other hand can effectively reduce the cost of equipment maintenance, realizes having pointed spare part to change.

In the dipolar magnet equipment for remote maintenance of the high radiation area, the guide mechanism is arranged between the iron core assembly body and the coil assembly body and is fixedly arranged on the ground support platform, the guide element is also arranged between the upper iron core and the coil assembly body, so that the acting force of the coil assembly body and the upper iron core on the lower iron core, the first side iron core, the second side iron core and other parts during guiding can be effectively reduced, and the position precision of the coil assembly body and the upper iron core installation reference is improved.

In this dipolar magnet equipment of high radiation zone remote maintenance usefulness, guiding mechanism's direction precision can reach 0.5mm, when can effectively guaranteeing to maintain, and the positional deviation when long-range hoist and mount coil assembly body and last iron core is no longer than 1mm, and the levelness is higher than 1mm, avoids appearing the phenomenon that coil assembly body is dead and can't install smoothly by the guiding mechanism card and takes place.

Drawings

Fig. 1 is a schematic view of the overall structure of the present dipolar magnet apparatus.

Fig. 2 is a schematic structural view of the dipolar magnet apparatus after the upper iron core is removed.

Fig. 3 is a schematic structural view of the diode magnet apparatus after the coil assembly is disassembled.

Fig. 4 is a schematic diagram of a single coil in a coil assembly.

Fig. 5 is a schematic view of the structure of the vacuum box in the coil assembly.

Fig. 6 is a schematic view of the vacuum box in the body 5 after the fixed guide plate is removed.

In the above figures, the components indicated by the respective reference numerals are as follows: the device comprises a coil 1, a vacuum box 2, a cooling water path 3, a water inlet and distribution device 4, a water outlet and distribution device 5, a beam current channel 6, a fixed guide plate 7, a first lifting ring 8, an upper iron core 9, a lower iron core 10, a first side iron core 11, a second side iron core 12, an iron core bottom plate 13, a guide rail 14, a first longitudinal guide plate 15, a second longitudinal guide plate 16, a third longitudinal guide plate 17, a first transverse guide plate 18, a second transverse guide plate 19 and a second lifting ring 20.

Detailed Description

The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.