CN115045434A - Modular construction device and method for high-temperature gas cooled reactor ceramic reactor internals - Google Patents
Modular construction device and method for high-temperature gas cooled reactor ceramic reactor internals Download PDFInfo
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- E—FIXED CONSTRUCTIONS
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Abstract
The invention provides a modular construction device and a method for a high-temperature gas cooled reactor ceramic reactor internals, wherein the modular construction device comprises a first module, a second module and a third module; the first module comprises a first supporting framework, graphite bricks and carbon bricks, and the graphite bricks and the carbon bricks are stacked and piled inside the first supporting framework according to a first preset rule; the second module comprises a second supporting framework, graphite bricks and carbon bricks, and the graphite bricks and the carbon bricks are stacked in the second supporting framework according to a second preset rule; the third module includes third support chassis, graphite brick and carbon brick, the graphite brick with the carbon brick is according to the third rule range upon range of the piling of predetermineeing the rule and is in the inside of third support chassis. The invention has the technical effects of reasonable design, optimization of the construction process of the ceramic reactor internals and effective saving of the construction time, thereby better shortening the construction period of the main line of the high-temperature reactor nuclear island.
Description
Technical Field
The invention belongs to the technical field of nuclear power, and particularly relates to a modular construction device and method for a high-temperature gas cooled reactor ceramic reactor internals.
Background
The high temperature gas cooled reactor ceramic reactor internal component is positioned in a reactor core shell of the metal reactor internal component and is a cylinder with a reactor core cavity formed by stacking graphite bricks and carbon bricks. The overall height of the ceramic internals 1 is 16.8m, the outer diameter is 5m, the diameter of the core cavity 2 is 3m, and the equivalent height is 11m, as shown in FIG. 1. The outer layer of the ceramic pile internal member is composed of carbon bricks, thus playing a role of heat insulation; the inner side is composed of graphite bricks which play a role of reflecting neutrons, and a bottom hot air chamber 62, a top cold air chamber 61 and pore channels with various functions are formed by special-shaped graphite bricks.
The main body of the ceramic pile internal member is composed of 3100 graphite bricks and carbon bricks, and comprises 53 layers, and in addition, tens of thousands of small pieces such as graphite tenons, keys, sleeves and the like, and the installation and position adjustment of the graphite bricks and the carbon bricks are needed on site one by one. In order to ensure the structural stability, corresponding metal limiting devices are arranged around the ceramic reactor internals. Wherein, 6 circles of limiting I-shaped steel are arranged at the corresponding heights of the bottom hot air chamber and the top cold air chamber, 5 circles of anti-rotation keys and 30 circles of tightening belts are arranged at the corresponding height of the middle core stacking cavity. When the ceramic reactor internal member is installed from bottom to top, the metal limiting device with the corresponding height is installed synchronously, and if the gap between the ceramic reactor internal member and the metal limiting device does not meet the requirement, the limiting I-shaped steel and the anti-rotation key need to be polished and the curvature radian of the hooping belt needs to be corrected. The complicated installation process of the ceramic internals greatly prolongs the construction period of the main line of the high-temperature reactor nuclear island.
Disclosure of Invention
The invention aims to at least solve one of the technical problems in the prior art and provides a novel technical scheme of a high-temperature gas cooled reactor ceramic reactor internal component modular construction device and method.
According to a first aspect of the invention, a modular construction device for a high temperature gas cooled reactor ceramic reactor internals is provided, comprising:
the first module comprises a first supporting framework, graphite bricks and carbon bricks, wherein the graphite bricks and the carbon bricks are stacked in the first supporting framework according to a first preset rule and form the bottom of the ceramic internal stacking component; the lower surface of the first support framework is flush with the lower surfaces of the graphite brick and the carbon brick at the lowest layer;
the second module comprises a second supporting framework, graphite bricks and carbon bricks, the graphite bricks and the carbon bricks are stacked and piled inside the second supporting framework according to a second preset rule, and the plurality of second modules are sequentially stacked to form the middle part of the ceramic pile internal component; the lower surface of the second support framework is flush with the lower surfaces of the graphite brick and the carbon brick at the lowest layer;
the third module comprises a third supporting framework, graphite bricks and carbon bricks, and the graphite bricks and the carbon bricks are stacked in the third supporting framework according to a third preset rule and form the top of the ceramic internal stacking component; the lower surface of the third support framework is flush with the lower surfaces of the graphite brick and the carbon brick at the lowest layer;
the first module, the plurality of second modules and the third module are hoisted in sequence to form the ceramic reactor component.
Optionally, the first supporting framework comprises a first horizontal supporting assembly, a plurality of first vertical supporting members and a first limiting ring plate, the first vertical supporting members are arranged along the circumferential direction of the first horizontal supporting assembly at intervals, the first vertical supporting members are all perpendicular to the first horizontal supporting assembly, and the first limiting ring plate is sleeved on the outer side of the first vertical supporting members.
Optionally, the second support frame includes second horizontal support assembly, second vertical support piece and annular spacing, and is a plurality of second vertical support piece follows the circumference interval setting of second horizontal support assembly, and is a plurality of second vertical support piece all is perpendicular to second horizontal support assembly, it is a plurality of annular spacing all overlaps and locates a plurality of the outside of second vertical support piece, and is a plurality of annular spacing follows second vertical support piece's direction of height interval sets up, every annular spacing all is located the middle part that corresponds the carbon brick.
Optionally, the third supporting framework comprises a third horizontal supporting assembly, a third vertical supporting member and a second limiting ring plate, the third vertical supporting member is arranged along the circumferential direction of the third horizontal supporting assembly at intervals, the third vertical supporting member is perpendicular to the third horizontal supporting assembly, and the second limiting ring plate is sleeved on the outer side of the third vertical supporting member.
Optionally, the high temperature gas cooled reactor ceramic reactor internals modular construction device further comprises a guide post;
the top of each first vertical supporting piece is provided with the guide column, and the bottom of each second vertical supporting piece of the second module positioned at the bottommost layer is provided with the guide groove; the guide post is embedded in the guide groove so as to limit the hoisting position of the second module at the top of the first module;
between two adjacent second modules, the top of each second vertical supporting piece of the second module positioned on the lower layer is provided with the guide column, and the bottom of each second vertical supporting piece of the second module positioned on the upper layer is provided with the guide groove; the guide post is embedded in the guide groove to limit the hoisting position of the second module on the upper layer at the top of the second module on the lower layer;
every that is located the second module of top layer the top of second vertical support piece all is provided with the guide post, every third vertical support piece's bottom all is provided with the guide way, the guide post inlays to be located in the guide way, in order to right the third module carries on spacingly at the hoist and mount position that is located the second module top of top layer.
Optionally, each guide post all is provided with the hole for hoist, every third vertical support piece's top all is provided with the hole for hoist.
Optionally, the top end of the first vertical support of the first module is 7-10cm lower than the upper surface of the uppermost carbon brick;
the top end of the second vertical supporting piece of the second module is 7-10cm lower than the upper surface of the carbon brick at the uppermost layer.
Optionally, the outer sides of the carbon bricks corresponding to the first vertical supports are provided with first grooves, and the first vertical supports are partially embedded in the first grooves;
second grooves are formed in the outer sides of the carbon bricks corresponding to the second vertical supporting pieces, and the second vertical supporting pieces are partially embedded in the second grooves;
and the outer sides of the carbon bricks corresponding to the third vertical supporting pieces are provided with third grooves, and the third vertical supporting pieces are partially embedded in the third grooves.
Optionally, a depth of the first groove is less than a thickness of the first vertical support;
the depth of the second groove is less than the thickness of the second vertical support;
the depth of the third groove is less than the thickness of the third vertical support.
Optionally, the clearance between the inner surface of the first limit ring plate of the first module and the outer surface of the carbon brick is not more than 2 mm;
the clearance between the inner surface of the annular limiting strip of the second module and the outer surface of the carbon brick is not more than 2 mm;
and the clearance between the inner surface of the second limit ring plate of the third module and the outer surface of the carbon brick is not more than 2 mm.
According to a second aspect of the present invention, there is provided a modular construction method for a high temperature gas cooled reactor ceramic reactor internals, which is applied to the above modular construction device for a high temperature gas cooled reactor ceramic reactor internals, and comprises the following steps:
101, manufacturing a first supporting framework, a second supporting framework and a third supporting framework;
and 301, sequentially hoisting the first module, the plurality of second modules and the third module to form the ceramic reactor component.
One technical effect of the invention is that:
in the embodiment of the application, the first module, the second module and the third module can be constructed independently, and then the first module, the plurality of second modules and the third module are hoisted in sequence to form the ceramic in-pile member, so that the construction process of the ceramic in-pile member is greatly optimized, the construction time is effectively saved, the construction period of a main line of a high-temperature reactor nuclear island is well shortened, and the cost is saved.
Drawings
Fig. 1 is a schematic overall structural view of a high temperature gas cooled reactor ceramic reactor internals modular construction apparatus according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a first supporting framework of a modular construction apparatus for a high temperature gas cooled reactor ceramic reactor internals according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a second supporting framework of the modular construction apparatus for the ceramic reactor internals of the high temperature gas cooled reactor according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a third supporting framework of the modular construction apparatus for the ceramic reactor internals of the high temperature gas cooled reactor according to an embodiment of the present invention;
fig. 5 is a partial structural view illustrating a stacked structure of two second modules of a high temperature gas cooled reactor ceramic reactor internals modular construction apparatus according to an embodiment of the present invention.
In the figure: 1. a ceramic internals; 2. a core stacking cavity; 3. graphite bricks; 4. carbon bricks; 100. a first support frame; 101. a first horizontal support assembly; 102. a first vertical support; 103. a first limit ring plate; 200. a second support armature; 201. a second horizontal support assembly; 202. a second vertical support; 203. an annular limiting strip; 300. a third support frame; 301. a third horizontal support assembly; 302. a third vertical support; 303. a second limit ring plate; 400. a guide post; 401. hoisting holes; 500. a guide strip; 501. a guide groove; 61. a cold air chamber; 62. a hot air chamber.
Detailed Description
Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise.
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.
The features of the terms first and second in the description and in the claims of the present application may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more unless otherwise specified. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
In the description of the present application, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in this application will be understood to be a specific case for those of ordinary skill in the art.
As shown in fig. 1 to 5, according to a first aspect of the present invention, a modular construction apparatus for a high temperature gas cooled reactor ceramic reactor internals is provided, which is used for quickly implementing the construction of the high temperature gas cooled reactor ceramic reactor internals, and can effectively save the construction time, so as to better shorten the construction period of a main line of a high temperature reactor nuclear island.
Specifically, the high-temperature gas cooled reactor ceramic reactor internals modularization construction device comprises a first module, a second module and a third module, wherein the first module, the plurality of second modules and the third module are hoisted in sequence to form the ceramic reactor internals 1. Because the high-temperature gas cooled reactor ceramic reactor internal component adopts a modular construction mode, the first module, the second module and the third module can be separately constructed and then hoisted on a construction site, and the construction time is effectively saved.
More specifically, the first module comprises a first support framework 100, graphite bricks 3 and carbon bricks 4, wherein the graphite bricks 3 and the carbon bricks 4 are stacked in a first preset rule in a stacking manner inside the first support framework 100 and form the bottom of the ceramic stacking inner member 1. Graphite brick 3 and carbon brick 4 pile up the construction requirement of 1 bottom of inner member according to the pottery and pile up the rule range upon range of the inside of piling up at first support skeleton 100, the construction of being convenient for, moreover, first support bone can support graphite brick 3 and carbon brick 4 betterly, also can carry on spacingly to graphite brick 3 and carbon brick 4 simultaneously. Wherein, the lower surface of first support skeleton 100 and the lower surface of lower floor graphite brick 3 and carbon brick 4 flush, and this helps piling up first module flat on the installation support plane of ceramic heap internals 1, and stability is better, helps guaranteeing the overall structure's of hoist and mount completion stability.
The second modules comprise a second supporting framework 200, graphite bricks 3 and carbon bricks 4, the graphite bricks 3 and the carbon bricks 4 are stacked and piled inside the second supporting framework 200 according to a second preset rule, and a plurality of second modules are sequentially stacked to form the middle part of the ceramic internal stacking component 1; graphite brick 3 and carbon brick 4 pile up the construction requirement and pile up the rule range upon range of the inside of piling up at second supporting framework 200 at the internal member 1 middle part according to the pottery, the construction of being convenient for, moreover, the second supports the bone and can support graphite brick 3 and carbon brick 4 betterly, also can carry on spacingly to graphite brick 3 and carbon brick 4 simultaneously. Wherein, the lower surface of the second supporting framework 200 is flush with the lower surfaces of the graphite brick 3 and the carbon brick 4 at the lowest layer. This helps to stack the modules from module to module and helps to ensure stability of the overall structure once hoisted.
The third module includes third support chassis 300, graphite brick 3 and carbon brick 4, graphite brick 3 with carbon brick 4 is according to the third rule range upon range of the piling of predetermineeing in the inside of third support chassis 300 and constitute the top of ceramic heap internals 1. Graphite brick 3 and carbon brick 4 pile up the construction requirement at 1 top of inner member according to the pottery and pile up the rule range upon range of the inside of piling up at third supporting framework 300, the construction of being convenient for, moreover, the third supports the bone and can support graphite brick 3 and carbon brick 4 betterly, also can carry on spacingly to graphite brick 3 and carbon brick 4 simultaneously. Wherein, the lower surface of third support chassis 300 and the lower surface of lower floor graphite brick 3 and carbon brick 4 flush, and this helps piling up the third module flat at the top of second module to the top of ceramic internals 1, stability is better, thereby helps guaranteeing the stability of the overall structure that hoist and mount were accomplished.
In the embodiment of the application, the first module, the second module and the third module can be constructed independently, and then the first module, the plurality of second modules and the third module are hoisted in sequence to form the ceramic reactor component 1, so that the construction process of the ceramic reactor component 1 is greatly optimized, the construction time is effectively saved, the construction period of a main line of a high-temperature reactor nuclear island is well shortened, and the cost is saved.
Optionally, referring to fig. 2, the first supporting framework 100 includes a first horizontal supporting assembly 101, a first vertical supporting member 102, and a first limiting ring plate 103, the first vertical supporting members 102 are arranged at intervals along the circumferential direction of the first horizontal supporting assembly 101, the first vertical supporting members 102 are perpendicular to the first horizontal supporting assembly 101, and the first limiting ring plate 103 is sleeved outside the first vertical supporting members 102.
In the above embodiment, the first horizontal supporting component 101, the first vertical supporting component 102 and the first limit ring plate 103 are fixed together by welding to form the first supporting framework 100, which not only simplifies the processing manner of the first supporting framework 100, but also helps to improve the structural stability and the overall rigidity of the first supporting framework 100. Simultaneously, help stacking up graphite brick 3 and carbon brick 4 accurately according to the construction requirement in the inside of first support skeleton 100 to make the overall stability of first module better.
For example, the first horizontal supporting assembly 101 includes annular plates and radial connecting plates, three annular plates with different diameters are sequentially embedded at intervals from inside to outside, two adjacent annular plates are connected by a plurality of radial connecting plates, and the plurality of radial connecting plates are uniformly distributed along the circumference of the annular plates.
In a particular embodiment, six radial webs are connected between the first and second annular plates, six radial webs are connected between the second and third annular plates, and the two webs in the radial direction of the annular plates lie on the same line.
Correspondingly, the carbon bricks 4 at the bottommost layer in the first module are also arranged in three circles, and meanwhile, grooves need to be machined at corresponding positions on the lower surfaces of the carbon bricks 4, and the width of each groove is 1-2 mm larger than that of the annular plate and the radial connecting plate; the depth of the groove is 1mm-2mm greater than the thickness of the annular plate and the radial connecting plate. A plurality of first vertical support 102 along the circumference evenly distributed of outermost annular plate, the recess is also processed to the corresponding position of outermost carbon brick 4, and the width of recess is 1mm more than first vertical support 102's width, and the degree of depth of recess is greater than first vertical support 102's thickness to help realizing piling up carbon brick 4 and graphite brick 3 in the inside of first support skeleton 100 fast, firmly.
In addition, the first stopper ring plate 103 corresponds in height to the position of the hot gas chamber (i.e., layers 3-5) at the bottom of the ceramic stack internal member 1, and the opening portion of the first stopper ring plate 103 corresponds to the position of the hot gas introduction pipe. Therefore, after the construction of the first module is completed, the first horizontal supporting assembly 101 is completely located in the corresponding groove of the carbon brick 4, part of the thickness of the first vertical supporting member 102 is also located in the corresponding groove of the carbon brick 4, and the gap between the inner surface of the first limit ring plate 103 and the outer surface of the carbon brick 4 is not more than 2 mm.
Optionally, referring to fig. 3, the second supporting framework 200 includes a second horizontal supporting assembly 201, a second vertical supporting member 202, and an annular limiting strip 203, the plurality of second vertical supporting members 202 are arranged along a circumferential direction of the second horizontal supporting assembly 201 at intervals, the plurality of second vertical supporting members 202 are perpendicular to the second horizontal supporting assembly 201, the plurality of annular limiting strips 203 are all sleeved outside the plurality of second vertical supporting members 202, the plurality of annular limiting strips 203 are arranged along a height direction of the second vertical supporting members 202 at intervals, and each annular limiting strip 203 is located in a middle portion of a corresponding carbon brick 4.
In the above embodiment, the second horizontal support assembly 201, the second vertical support 202 and the annular limiting strip 203 are fixed together by welding to form the second support frame 200, which not only simplifies the processing manner of the second support frame 200, but also helps to improve the structural stability and the overall rigidity of the second support frame 200. Simultaneously, help stacking up graphite brick 3 and carbon brick 4 accurately in the inside of second support chassis 200 according to the construction requirement of second module to make the overall stability of second module better.
In a specific embodiment, the number of second modules is three. The second horizontal support assembly 201 of each second module comprises an annular plate and a radial web; two annular plates with different diameters are sequentially embedded at intervals from inside to outside, and the two annular plates are connected by a plurality of radial connecting plates. The outside of a plurality of second vertical support 202 is all located to a plurality of annular spacing 203 covers, and every annular spacing 203 all is located the middle part of every layer of carbon brick 4 in the direction of height moreover, and the clearance of the internal surface of annular spacing 203 and carbon brick surface is not more than 2 mm.
Optionally, referring to fig. 4, the third supporting framework 300 includes a third horizontal supporting assembly 301, a third vertical supporting member 302 and a second limiting ring plate 303, the plurality of third vertical supporting members 302 are arranged at intervals along the circumferential direction of the third horizontal supporting assembly 301, the plurality of third vertical supporting members 302 are perpendicular to the third horizontal supporting assembly 301, and the second limiting ring plate 303 is sleeved outside the plurality of third vertical supporting members 302.
In the above embodiment, the third horizontal supporting assembly 301, the third vertical supporting member 302 and the second limiting ring plate 303 are fixed together by welding to form the third supporting framework 300, which not only simplifies the processing manner of the third supporting framework 300, but also helps to improve the structural stability and the overall rigidity of the third supporting framework 300. Meanwhile, the graphite bricks 3 and the carbon bricks 4 are accurately stacked and piled in the third supporting framework 300 according to the construction requirement of the third module, so that the overall stability of the third module is good.
Third horizontal support assembly 301 includes annular plate and radial connecting plate, and the annular plate of two different diameters is inlayed from inside to outside interval in proper order and is established, is connected by a plurality of radial connecting plates between two annular plates, and a plurality of radial connecting plates are along the circumference evenly distributed of annular plate.
In a particular embodiment, six radial webs are connected between the first annular plate and the second annular plate.
In addition, the second limit ring plate 303 corresponds in height to the position of the top cold air chamber 61 of the ceramic reactor internals 1, and the gap between the inner surface of the second limit ring plate 303 and the outer surface of the carbon brick 3 is not more than 2 mm.
In this application embodiment, the third module corresponds the top cold air chamber of ceramic reactor internals 1, and the top of third vertical support 302 need not set up guide post 400, only need directly set up the guiding hole at the top of third vertical support 302 can, be favorable to realizing the hoist and mount to the third module.
Optionally, referring to fig. 2 and 3, the high temperature gas cooled reactor ceramic reactor internals modular construction device further comprises a guide column 400;
the guide column 400 is arranged at the top of each first vertical support 102, and the guide groove 501 is arranged at the bottom of each second vertical support 202 of the second module at the bottommost layer; the guide post 400 is embedded in the guide groove 501 to limit the hoisting position of the second module on the top of the first module;
between two adjacent second modules, the top of each second vertical support 202 of the second module on the lower layer is provided with the guide column 400, and the bottom of each second vertical support 202 of the second module on the upper layer is provided with the guide groove 501; the guide post 400 is embedded in the guide groove 501 to limit the hoisting position of the second module on the upper layer on the top of the second module on the lower layer;
every that is located the second module of topmost the top of second vertical support 202's top all is provided with guide post 400, every the bottom of third vertical support 302 all is provided with guide way 501, guide post 400 inlays to be located in the guide way 501, it is right that the third module carries on spacingly at the hoist and mount position that is located the second module top of topmost.
In the above embodiment, the cooperation of the limiting column and the limiting groove can better position the second module at the top of the first module, the second module on the upper layer at the top of the second module on the lower layer, and the third module at the top of the second module on the top layer, so as to help ensure the accuracy of the lifting position of each module, thereby better ensuring the stability of the integral structure of the high-temperature gas-cooled reactor ceramic reactor.
In a specific embodiment, the guide groove 501 is formed by two guide bars 500 welded at the bottom of each vertical support, which not only can better position the guide post 400, but also simplifies the structure of the guide groove 501 for easy processing.
Optionally, each guide pillar 400 is provided with a lifting hole 401, and the top of each third vertical support 302 is provided with the lifting hole 401. The hoisting holes 401 are beneficial to hoisting of each module, and convenience and stability of hoisting of each module are guaranteed.
In some embodiments, the materials of the first support frame 100, the second support frame 200 and the third support frame 300 are respectively the same as the materials of the metal internals, and are all 12Cr2Mo1R, thereby helping to ensure the stability of the overall structure of the high temperature gas cooled reactor.
Optionally, referring to fig. 5, the top end of the first vertical support 102 of the first module is 7-10cm lower than the upper surface of the uppermost carbon brick 4;
the top end of the second vertical support 202 of the second module is 7-10cm lower than the upper surface of the carbon brick 4 at the uppermost layer.
In the above embodiment, after hoisting of each module is completed, the top end of the first vertical support 102 of the first module is 7-10cm lower than the upper surface of the uppermost carbon brick 4; the top end of the second vertical support 202 of the second module is 7-10cm lower than the upper surface of the uppermost carbon brick 4. Because the expansion coefficient of the metal material 12Cr2Mo1R is larger than that of the ceramic material, when the reactor enters into thermal state operation, the first vertical support 102 of the first module and the second vertical support 202 of the second module need to be ensured not to collide with the upper module when freely expanding along the vertical direction, and the stability of each module when the reactor enters into thermal state operation is ensured.
Optionally, the outer sides of the carbon bricks 4 corresponding to the first vertical supports 102 are provided with first grooves, and the first vertical supports 102 are partially embedded in the first grooves;
second grooves are formed in the outer sides of the carbon bricks 4 corresponding to the second vertical supports 202, and the second vertical supports 202 are partially embedded in the second grooves;
and the outer sides of the carbon bricks 4 corresponding to the third vertical supporting pieces 302 are provided with third grooves, and the third vertical supporting pieces 302 are partially embedded in the third grooves.
In the above embodiment, the first groove can locate the stacking position of the carbon brick 4 in the first module, and also helps to realize stable combination of the carbon brick 4 and the first vertical support 102; the second groove can position the stacking position of the carbon brick 4 in the second module, and is also beneficial to realizing the stable combination of the carbon brick 4 and the second vertical support 202; the third recess can be fixed a position the piling position of carbon brick 4 in the third module, also helps realizing the stable combination of carbon brick 4 and third vertical support 302 simultaneously to help realizing the construction of each module fast, also help guaranteeing the ceramic that the construction finishes and pile the overall stability of inner member 1.
Optionally, the depth of the first groove is less than the thickness of the first vertical support 102;
the depth of the second groove is less than the thickness of the second vertical support 202;
the depth of the third groove is less than the thickness of the third vertical support 302.
For example, the depth of the first groove is one half of the thickness of the first vertical support 102;
the depth of the second groove is one half of the thickness of the second vertical support 202;
the depth of the third groove is one-half the thickness of the third vertical support 302.
In the above embodiment, it is helpful to stably combine the carbon bricks 4 in each module with the corresponding vertical supports, so as to better ensure the stability of the overall structure of the ceramic reactor internals 1.
It should be noted that the ceramic internals 1 includes a first module, three second modules, and a third module. The weight of each module is less than 100t, and the general condition can not exceed the rated load of the reactor factory building crane, thereby meeting the requirement of reactor construction. In addition, the total amount of each module needs to be accurately calculated before the ceramic internals 1 are constructed.
In some embodiments, the number of first vertical supports 102, second vertical supports 202, and third vertical supports 302 is six. When each module is hoisted and placed, the angle of the vertical supporting piece is correct, after the six guide posts 400 of the module to be positioned below enter the space between the two corresponding guide strips 500 of the module to be positioned above, the module can be slowly placed, and the accuracy of hoisting is ensured.
Optionally, the gap between the inner surface of the first limiting ring plate of the first module and the outer surface of the carbon brick is not more than 2 mm;
the clearance between the inner surface of the second module annular limiting strip and the outer surface of the carbon brick is not more than 2 mm;
and the clearance between the inner surface of the second limiting ring plate of the third module and the outer surface of the carbon brick is not more than 2 mm.
In the embodiment, the carbon bricks can move outwards along the radial direction of the ceramic reactor internals within a preset range, so that the moving distance of the carbon bricks is effectively limited, and the overall stability of the ceramic reactor internals is ensured.
According to a second aspect of the present invention, a method for modular construction of a high temperature gas cooled reactor ceramic reactor internals is provided, which is applied to the above modular construction device of the high temperature gas cooled reactor ceramic reactor internals, and comprises the following steps:
101, manufacturing a first supporting framework 100, a second supporting framework 200 and a third supporting framework 300;
and 301, sequentially hoisting a first module, a plurality of second modules and a third module to form the ceramic reactor component 1.
In the embodiment, the modular construction method for the high-temperature gas cooled reactor ceramic reactor internals is reasonable in design, the construction process of the ceramic reactor internals 1 is greatly optimized, and the construction time is effectively saved, so that the construction period of a main line of a high-temperature reactor nuclear island is well shortened, and the cost is saved.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (11)
1. A high temperature gas cooled reactor ceramic reactor internal component modularization construction device is characterized by comprising:
the first module comprises a first supporting framework, graphite bricks and carbon bricks, wherein the graphite bricks and the carbon bricks are stacked in the first supporting framework according to a first preset rule and form the bottom of the ceramic internal stacking component; the lower surface of the first support framework is flush with the lower surfaces of the graphite brick and the carbon brick at the lowest layer;
the second module comprises a second supporting framework, graphite bricks and carbon bricks, the graphite bricks and the carbon bricks are stacked and piled inside the second supporting framework according to a second preset rule, and the plurality of second modules are sequentially stacked to form the middle part of the ceramic pile internal component; the lower surface of the second support framework is flush with the lower surfaces of the graphite brick and the carbon brick at the lowest layer;
the third module comprises a third supporting framework, graphite bricks and carbon bricks, and the graphite bricks and the carbon bricks are stacked in the third supporting framework according to a third preset rule and form the top of the ceramic internal stacking component; the lower surface of the third support framework is flush with the lower surfaces of the graphite brick and the carbon brick at the lowest layer;
the first module, the plurality of second modules and the third module are hoisted in sequence to form the ceramic reactor component.
2. The modular construction device for the ceramic reactor internals for high temperature gas cooled reactor according to claim 1,
the first supporting framework comprises a first horizontal supporting assembly, a plurality of first vertical supporting pieces and a first limiting ring plate, the first vertical supporting pieces are arranged along the circumferential direction of the first horizontal supporting assembly at intervals and are a plurality of the first vertical supporting pieces are perpendicular to the first horizontal supporting assembly, and the first limiting ring plate is sleeved on the outer side of the first vertical supporting pieces.
3. The modular construction device for the ceramic reactor internals for high temperature gas cooled reactor according to claim 2,
the second support framework comprises a second horizontal support assembly, a second vertical support piece and an annular limiting strip, the second vertical support piece is arranged at intervals in the circumferential direction of the second horizontal support assembly, the second vertical support piece is perpendicular to the second horizontal support assembly, the annular limiting strip is arranged at the outer side of the second vertical support piece in a sleeved mode, the annular limiting strip is arranged at intervals in the height direction of the second vertical support piece, and the annular limiting strip is located at the middle of the corresponding carbon brick.
4. The modular construction device for the ceramic reactor internals for high temperature gas cooled reactor according to claim 3,
the third support framework comprises a third horizontal support assembly, a third vertical support piece and a second limit ring plate, the third vertical support piece is arranged along the circumferential direction of the third horizontal support assembly at intervals, the third vertical support piece is perpendicular to the third horizontal support assembly, and the second limit ring plate is sleeved on the outer side of the third vertical support piece.
5. The modular construction device for the high temperature gas cooled reactor ceramic reactor internals according to claim 4, further comprising guide posts;
the guide column is arranged at the top of each first vertical supporting piece, and the guide groove is arranged at the bottom of each second vertical supporting piece of the second module positioned at the bottommost layer; the guide post is embedded in the guide groove to limit the hoisting position of the second module on the top of the first module;
between two adjacent second modules, the top of each second vertical supporting piece of the second module positioned on the lower layer is provided with the guide column, and the bottom of each second vertical supporting piece of the second module positioned on the upper layer is provided with the guide groove; the guide post is embedded in the guide groove to limit the hoisting position of the second module on the upper layer at the top of the second module on the lower layer;
every that is located the second module of top layer the top of second vertical support piece all is provided with the guide post, every third vertical support piece's bottom all is provided with the guide way, the guide post inlays to be located in the guide way, in order to right the third module carries on spacingly at the hoist and mount position that is located the second module top of top layer.
6. The modular construction device for the ceramic reactor internals for high temperature gas cooled reactor according to claim 5,
every the guide post all is provided with the hole for hoist, every third vertical support piece's top all is provided with the hole for hoist.
7. The modular construction device for the ceramic reactor internals for high temperature gas cooled reactor according to claim 5,
the top end of the first vertical supporting piece of the first module is 7-10cm lower than the upper surface of the carbon brick at the uppermost layer;
the top end of the second vertical supporting piece of the second module is 7-10cm lower than the upper surface of the carbon brick at the uppermost layer.
8. The high temperature gas cooled reactor ceramic reactor internals modularization construction device of claim 5, wherein the outer sides of the carbon bricks corresponding to the first vertical supports are provided with first grooves, and the first vertical supports are partially embedded in the first grooves;
second grooves are formed in the outer sides of the carbon bricks corresponding to the second vertical supporting pieces, and the second vertical supporting pieces are partially embedded in the second grooves;
and the outer sides of the carbon bricks corresponding to the third vertical supporting pieces are provided with third grooves, and the third vertical supporting pieces are partially embedded in the third grooves.
9. The modular construction device for the ceramic reactor internals for high temperature gas cooled reactor according to claim 8,
the depth of the first groove is less than the thickness of the first vertical support;
the depth of the second groove is less than the thickness of the second vertical support;
the depth of the third groove is less than the thickness of the third vertical support.
10. The modular construction device for the ceramic reactor internals for high temperature gas cooled reactor according to claim 8,
the clearance between the inner surface of the first limit ring plate of the first module and the outer surface of the carbon brick is not more than 2 mm;
the clearance between the inner surface of the annular limiting strip of the second module and the outer surface of the carbon brick is not more than 2 mm;
and the clearance between the inner surface of the second limit ring plate of the third module and the outer surface of the carbon brick is not more than 2 mm.
11. A modular construction method for a high temperature gas cooled reactor ceramic reactor internals, which is applied to the modular construction device for the high temperature gas cooled reactor ceramic reactor internals according to any one of claims 1 to 10, comprising the following steps:
101, manufacturing a first supporting framework, a second supporting framework and a third supporting framework;
step 201, stacking graphite bricks and carbon bricks in a first support framework according to a first preset rule to form a first module; the graphite bricks and the carbon bricks are stacked in the second support framework according to a second preset rule to form a second module; the graphite bricks and the carbon bricks are stacked in the third supporting framework according to a third preset rule to form a third module;
and 301, hoisting the first module, the plurality of second modules and the third module in sequence to form the ceramic reactor component.
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