CN103758353B - Drum type filter screen side seal board mounting method - Google Patents
Drum type filter screen side seal board mounting method Download PDFInfo
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- CN103758353B CN103758353B CN201410012314.3A CN201410012314A CN103758353B CN 103758353 B CN103758353 B CN 103758353B CN 201410012314 A CN201410012314 A CN 201410012314A CN 103758353 B CN103758353 B CN 103758353B
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Abstract
The difficulty of construction that the drum type filter screen side seal board mounting method provided for solving use producer brings is large, manpower and materials are wasted, inefficiency and the high problem of security risk, the present invention proposes a kind of drum type filter screen side seal board mounting method, comprise: drum type filter screen is arranged on both walls and is provided with in the pond of embedded board, measure the axial end jitter values of its frame; The first head and the tail welding of some side seal boards is spliced into side seal board group and is connected on frame, and side seal board is provided with fixed bolt; Rotating drum-shaped filter screen, rotates side seal board group to installation site, is welded on corresponding embedded board by the tail end of fixed bolt, and adjustment makes side seal board position; All the other side seal board groups are installed successively, by integral for adjacent two side seal board bond pads; Grouting is fixing.Use drum type filter screen side seal board mounting method provided by the present invention to install the side seal board of drum type filter screen, difficulty of construction is low, and quality examination is convenient, and working space is large, can save duration and manpower and materials, reduces risk.
Description
Technical field
The present invention relates to the mounting method of equipment in nuclear power station, particularly relate to a kind of mounting method of drum type filter screen side seal board.
Background technology
PX factory building seawater circulation water CRF system and safe station-service water SEC system respectively have 4 drum type filter screens, drum type filter screen is the nucleus equipment of nuclear power station circulating water filtering system, its function mainly removes in seawater the suspension pollutant being greater than mesh diameter, is one of indispensable vitals of nuclear power station.As depicted in figs. 1 and 2, on the wall 13 of both sides, pond 14 installing every platform drum type filter screen 1, the side seal board 3 of shape is as shown in Figure 2 provided with.
Arranging side seal board 3 is in order to avoid the sealed rubber plate cement wall 13 that is direct and pond of drum type filter screen 1 two sides rubs, thus extends the application life of sealed rubber plate.Therefore, the Installation features of side seal board is smooth impulse-free robustness on vertical direction, guarantees with the spacing of drum type filter screen 1 minimum, and to ensure that sealed rubber plate and side seal board are Elastic Contact, and in drum type filter screen rotary course, side seal board can not scratch sealing rubber tile.
According to manufacturers instructions mounting method, during installation, fixed bolt opsition dependent size point is welded on the embedded board in pool wall 13 (now can not weld), every block embedded board welds 2 fixed bolts.Pond side walls 13 sets a suitable fixed point respectively, measures this distance to main beam 15 two ends of drum type filter screen (each 40 points in every side) respectively and record, from numerical value, choose the point the shortest with wall 13 spacing, at this installation side shrouding.Then with this block side seal board for benchmark, by adjustment leveling nut, remaining side seal board is installed, each side seal board is made to be in same plane, treat all side seal board installation in position, after each fixed bolt position adjustment passed examination, fixed bolt is all welded on embedded board, by on the wall of all side seal boards of installation in position in pond successively head and the tail splicing be welded into a ring-type entirety, and it is smooth to polish flat, burr, overlap should be cleaned out, in order to avoid scratch sealed rubber plate, then grouting is carried out to mounted side seal board and fix.After side seal board installation check is qualified, again drum type filter screen is installed.
Because drum type filter screen pond depth reaches 20m, the fitting operation of side seal board needs to complete in narrow space, and need the side seal board number of installation more, require after installation that side seal board is in same plane, and the spacing between side seal board and the frame of drum type filter screen has dimensional requirement, connection between side seal board set bolt and the fixing and side seal board of embedded board is the restriction of the series of factors such as welding procedure, therefore, if installation side shrouding according to the method described above, side seal board can be caused to occur when mounted, and difficulty of construction is large, the problem of quality examination difficulty, and the scaffold building in construction is fixed, measure, install, adjustment, to be welded and fixed and quality examination can the manpower and materials of at substantial, inefficiency, and security risk is high.
Summary of the invention
The difficulty of construction that the drum type filter screen side seal board mounting method provided for solving use producer brings is large, manpower and materials are wasted, inefficiency and the high problem of security risk, the present invention proposes a kind of drum type filter screen side seal board mounting method, and the method comprises the following steps:
The first step, is arranged on drum type filter screen in side walls and is provided with in the pond of embedded board, measures the axial end jitter values of drum type filter screen frame;
Second step, the first head and the tail welding of some side seal boards is spliced to form side seal board group, the drum type filter screen axial end jitter values maximum measured, each block side seal board in one group of side seal board group is all removably connected on the frame of described drum type filter screen, every block side seal board is provided with at least two fixed bolt holes, and in this fixed bolt hole, fixed bolt is installed, and described fixed bolt is provided with adjusting nut;
3rd step, rotating drum-shaped filter screen, the described side seal board group be fixed on described frame is rotated to installation site, then the tail end of the fixed bolt on every block side seal board is welded on corresponding embedded board, again described side seal board and described frame are split and come, adjust described adjusting nut, make the spacing between the frame end of described side seal board group and this drum type filter screen axial runout value maximum reach designing requirement;
4th step, according to such scheme, all the other are installed successively and weld the side seal board group of having spliced, carry out again checking and adjusting after the whole installation in position of described side seal board group, the distance of described side seal board and described drum type filter screen frame end is made to meet designing requirement, and each side seal board is in same plane, then by integral for adjacent two side seal board bond pads;
5th step, carries out the inspection of size and planeness to the side seal board of welding forming, after passed examination, carry out grouting fix side seal board.
Axial end is beated the smooth degree of two rounded face (square with the axis plane) of the end face that refers to cylinder class component and cylinder.Measuring method is that cylinder class component is fixed on after in rotating shaft by datum, rotates this cylinder class component, by the value measured after its end face of table contact.The frame end of the axial end jitter values maximum of drum type filter screen is the place nearest with side seal board, and distance meets design requirement herein, and the end of other frames of drum type filter screen and the distance of side seal board all can meet designing requirement.
Use drum type filter screen side seal board mounting method provided by the present invention to install the side seal board of drum type filter screen, first drum type filter screen has been installed, because drum type filter screen is made up of multiple spoke combination, this drum type filter screen is fixed, after making it not rotate, the large I of drum type filter screen inner space meets staff and freely climbs in this drum type filter screen, decreases this step of scaffold building when side seal board is installed, decrease construction sequence, improve efficiency of construction.The mode of side seal board group is formed owing to have employed first welding splicing side seal board outside pond, each side seal board assembly welding only need be connected into an entirety by staff in the narrow installation space in pond, without the need to each side seal board being welded in small space, therefore the welding job amount of staff in narrow installation space greatly reduces, significantly reduce the difficulty of construction of staff, quality examination more for convenience, a large amount of duration and manpower and materials can not only be saved, also reduce security risk simultaneously.
Preferably, described side seal board is also provided with link bolt hole, described side seal board is coupled together by described link bolt hole and described frame bolt.Further, in described step 2, when described side seal board connects described frame by described link bolt hole, employ L-type angle steel.Two vertical planes of described L-type angle steel are provided with the bolt hole identical with described connecting bolt hole size, and a vertical plane of described L-type angle steel is connected with described side seal board by bolt, and another vertical plane is connected with described side seal board by bolt.Further, described side seal board is when being fixed on described frame by described L-type angle steel, the vertical distance in the outside of the straight flange that described frame end is connected to described L-type angle steel with described side seal board is just the requirement size of described side seal board and described frame spacing.Use described L-type angle steel to determine the distance between described side seal board and described frame, save and use described adjusting nut to adjust the step of described side seal board position, improve operating efficiency.
Preferably, in described step 2, described side seal board is connected by the fixed bolt hole of on side seal board with described L-type angle steel, in remaining fixed bolt hole, install fixed bolt, in described step 3, rotating described drum type filter screen makes the described side seal board group be fixed on described frame rotate to installation site, the tail end of mounted fixed bolt on every block side seal board is welded on corresponding embedded board, again described side seal board and described L-type angle steel are split and come, in fixed bolt hole vacant after fractionation, fixed bolt is installed, and the tail end of these fixed bolts is welded on corresponding embedded board, then described adjusting nut is adjusted, the spacing between the frame end of described side seal board group and this drum type filter screen axial runout value maximum is made to reach designing requirement.Drilling operation to described side seal board when above-mentioned setting can reduce construction, decreases operation, has saved the working time, thus improve operating efficiency, reduce the application life that can also extend described side seal board to the operations number of described side seal board.
Preferably, described side seal board installs rear use distance measurement block to carry out checking and adjusting, and makes the distance of described side seal board and described frame end meet designing requirement; Described distance measurement block is block structure, and one end is provided with link bolt hole, and for distance measurement block being connected to axial runout value maximum on described frame, the other end is the smooth free end of end face; Described frame end, to the vertical distance of described distance measurement block free end, is just the designing requirement distance of described side seal board and described frame spacing; When checking, be rotatably installed with the drum type filter screen of described distance measurement block, if there is the situation even occurring that described drum type filter screen cannot rotate that rubs in the free end of described distance measurement block and the somewhere of described side seal board, adjustment side seal board, reaches designing requirement distance to make the distance herein between side seal board and described frame end.
Preferably, for the center line of link bolt hole that is connected with the described frame vertical distance to described another vertical plane of L-type angle steel on described L-type angle steel, with the equal and opposite in direction for the center line to the vertical distance of the free end end face of described distance measurement block that are fixed to the link bolt hole on described frame on described distance measurement block, and for fixing described L-type angle steel be the bolt of same model for the bolt of fixing described distance measurement block.Now, described frame is then same bolt hole for the bolt hole of fixing described L-type angle steel and the bolt hole for fixing described distance measurement block, when making staff use distance measurement block to check after installing described side seal board, without the need to again punching to described frame, decrease the workload of staff, reduce construction frequency, decrease the operations number to described frame simultaneously, extend the application life of described frame.
When using drum type filter screen side seal board mounting method of the present invention to install side seal board, owing to first installing drum type filter screen, the inner combination by multiple spoke of drum type filter screen is formed, after this drum type filter screen is fixing, the enough staff of its inner space size are in inside climbing or carry out welding, the activity such as dismounting, and without the need to setting up scaffold, material resources cost when reducing installation and time cost; Be welded into side seal board group because side seal board is spliced in a pre-installation, the workload of side seal board in installation process reduced, and without the need to carrying out multiple welding work in narrow and small installing space, reduces difficulty of construction; And the distance more easily controlled between the side seal board after installing and the frame of drum type filter screen, reduce the difficulty of quality examination, ensure that construction quality.
Accompanying drawing explanation
Fig. 1 is the structural representation (part-structure is not shown) of drum type filter screen, and wherein, side frame is not installed, and opposite side frame is broken away signal;
Fig. 2 is the schematic diagram that side seal board is arranged on the position in pool wall;
To be that in drum type filter screen side seal board mounting method of the present invention, side seal board is soldered be spliced into tetrameric schematic diagram to Fig. 3;
Fig. 4 is partial schematic sectional view when using L-type Bolted angle connection side seal board in drum type filter screen side seal board mounting method of the present invention, and wherein connecting bolt and fixed bolt are not installed;
Partial schematic sectional view when Fig. 5 is installing space survey mass in drum type filter screen side seal board mounting method of the present invention, wherein connecting bolt is not installed.
Detailed description of the invention
As shown in Figure 1, Figure 2, shown in Fig. 3 and Fig. 4, a kind of drum type filter screen side seal board mounting method, the method comprises the following steps:
The first step, is arranged on drum type filter screen 1 and both walls is provided with in the pond 14 of embedded board 2, measures the axial end jitter values of the frame 11 of drum type filter screen 1 to drum type filter screen 1 by after installation requirement adjustment.
Second step, some pieces of side seal boards 3 are first welded splicing from beginning to end, form four side seal board groups 3 ' as shown in Figure 3, and the commissure of these four side seal board groups 3 ' is polished flat, in the place that the axial end jitter values of the drum type filter screen 1 measured is maximum, as shown in Figure 4, every block side seal board 3 in one group of side seal board group 3 ' of above-mentioned welding having been spliced all is connected on the frame 11 of drum type filter screen by L-type angle steel 12, every block side seal board 3 is provided with fixed bolt hole 31 and link bolt hole 32, fixed bolt hole 31 is for installing fixed bolt 311, the afterbody of fixed bolt 311 is to be welded on embedded board 2, and fixed bolt 311 is provided with adjusting nut 312.Side seal board group 3 ' is removably coupled together by the vertical plane connecting bolt 321 of link bolt hole 32 with L-type angle steel 12, and another vertical plane of L-type angle steel 12 is coupled together by bolt 121 and frame 11.
3rd step, rotating drum-shaped filter screen, the side seal board group 3 ' be fixed on frame 11 is rotated to installation site, the fixed bolt 311 be arranged in fixed bolt hole 31 is welded on embedded board 2, disassemble being used for the L-type angle steel 12 of connection side shrouding group 3 ' with frame 11 again, then adjusting nut 312 is adjusted, the spacing between frame 11 end of side seal board group 3 ' and this drum type filter screen axial runout value maximum is made to reach designing requirement, again leveling is carried out to side seal board group 3 ', then adjusting nut 312 is screwed, side seal board group 3 ' is fixed up, distance between side seal board group 3 ' and frame 11 is remained on and requires size, avoid side seal board group 3 ' to be subject to external force factor to affect and offset.
4th step, according to such scheme, all the other are installed successively and weld the side seal board group 3 ' of having spliced, carry out again checking and adjusting after side seal board 3 all installation in position, side seal board 3 is all ensured in claimed range apart from the size of drum type filter screen frame, and each side seal board is in same plane, then by integrally welded for adjacent two side seal board groups 3 '.
5th step, checks whether the size of the side seal board 3 of welding forming and planeness meet the requirements, and after passed examination, carries out grouting fix side seal board 3.
Preferably, side seal board 3 is when being fixed on frame 11 by L-type angle steel 12, and the vertical distance in the outside of the vertical plane that the end of frame 11 is connected with side seal board 3 to L-type angle steel 12 be just the requirement size of the spacing of side seal board 3 and frame 11.
As shown in Figure 5, after side seal board 3 all installation in position, re-use distance measurement block 4 carry out checking and adjusting, distance measurement block 4 is rectangular block shape structure, one end is provided with link bolt hole 41, for distance measurement block being connected to the axial runout value maximum on frame 11, the other end is the smooth free end of end face.。The end of frame 11, to the vertical distance of the free end of distance measurement block 4, be just the requirement size of the spacing of side seal board 3 and frame 11.When checking, only need survey mass 4 be fixed on frame 11, then rotating drum-shaped filter screen 1, if there is strong friction in the somewhere of the free end of distance measurement block 4 and side seal board 3 even occurs the situation that drum type filter screen 1 cannot rotate, then side seal board is herein adjusted, thus make the distance herein between side seal board and frame 11 reach requirement size.After drum type filter screen 1 rotates a circle, distance measurement block 4 is changed on other positions and again check, and adjust the place that goes wrong, make side seal board 3 apart from the Assurance of Size of frame 11 in claimed range, and each side seal board 3 is in same plane.
Preferably, in described step 2, side seal board 3 is connected by the fixed bolt hole of on side seal board 3 31 with L-type angle steel 12, in remaining fixed bolt hole 31, install fixed bolt 311, in described step 3, rotating drum-shaped filter screen 1 makes the side seal board group 3 ' be fixed on frame 11 rotate to installation site, the tail end of fixed bolt 311 mounted on every block side seal board 3 is welded on corresponding embedded board 2, again side seal board 3 and L-type angle steel 12 are split and come, in fixed bolt hole 31 vacant after fractionation, fixed bolt 311 is installed, and the tail end of these fixed bolts 311 is welded on corresponding embedded board 2, then adjusting nut 312 is adjusted, the spacing between frame 11 end of side seal board group 3 ' and this drum type filter screen 1 axial runout value maximum is made to reach designing requirement.Drilling operation to side seal board 3 when above-mentioned setting can reduce construction, decreases operation, has saved the working time, thus improve operating efficiency, extend the application life of side seal board 3.
Preferably, the vertical distance of center line outside another vertical plane of L-type angle steel 12 of bolt hole for being connected with frame 11 on L-type angle steel 12, with the center line of the link bolt hole 41 on distance measurement block 4 equal and opposite in direction to the vertical distance of free end, and for fixed L type angle steel 12 be the bolt of same model for the bolt of constant spacing survey mass 4.Now, on frame 11 for the bolt hole of fixed L type angle steel 12 be then same bolt hole for the bolt hole of constant spacing survey mass 4, when making staff use distance measurement block to check after installing and welded all side seal boards 3, without the need to again punching to frame 11, decrease the workload of staff, decrease the operations number to frame 11 simultaneously, extend the application life of frame 11.
Claims (7)
1. a drum type filter screen side seal board mounting method, the method comprises the following steps:
The first step, is arranged on drum type filter screen in side walls and is provided with in the pond of embedded board, measures the axial end jitter values of drum type filter screen frame;
Second step, the first head and the tail welding of some side seal boards is spliced to form side seal board group, the drum type filter screen axial end jitter values maximum measured, each block side seal board in one group of side seal board group is all removably connected on the frame of described drum type filter screen, every block side seal board is provided with at least two fixed bolt holes, and in this fixed bolt hole, fixed bolt is installed, and described fixed bolt is provided with adjusting nut;
3rd step, rotating drum-shaped filter screen, the described side seal board group be fixed on described frame is rotated to installation site, then the tail end of the fixed bolt on every block side seal board is welded on corresponding embedded board, again described side seal board and described frame are split and come, adjust described adjusting nut, make the spacing between the frame end of described side seal board group and this drum type filter screen axial runout value maximum reach designing requirement;
4th step, according to described second step and described 3rd step, all the other are installed successively and weld the side seal board group of having spliced, carry out again checking and adjusting after the whole installation in position of described side seal board group, the distance of described side seal board and described drum type filter screen frame end is made to meet designing requirement, and each side seal board is in same plane, then by integral for adjacent two side seal board bond pads;
5th step, carries out the inspection of size and planeness to the side seal board of welding forming, after passed examination, carry out grouting fix side seal board.
2. drum type filter screen side seal board mounting method according to claim 1, is characterized in that, described side seal board is also provided with link bolt hole, and described side seal board is coupled together by described link bolt hole and described frame bolt.
3. drum type filter screen side seal board mounting method according to claim 1, it is characterized in that, in described step 2, described side seal board is connected by L-type angle steel with described frame, a vertical plane of described L-type angle steel is connected with described side seal board by bolt, and another vertical plane is connected with described frame by bolt.
4. drum type filter screen side seal board mounting method according to claim 3, is characterized in that, in described step 2, described side seal board is connected by the fixed bolt hole of on side seal board with described L-type angle steel, in remaining fixed bolt hole, install fixed bolt, in described step 3, rotating drum-shaped filter screen makes the described side seal board group be fixed on described frame rotate to installation site, the tail end of mounted fixed bolt on every block side seal board is welded on corresponding embedded board, again described side seal board and described L-type angle steel are split and come, in fixed bolt hole vacant after fractionation, fixed bolt is installed, and the tail end of these fixed bolts is welded on corresponding embedded board, then described adjusting nut is adjusted, the spacing between the frame end of described side seal board group and this drum type filter screen axial runout value maximum is made to reach designing requirement.
5. drum type filter screen side seal board mounting method according to claim 3, is characterized in that, described side seal board is when being fixed on described frame by described L-type angle steel, and the spacing of described side seal board and described frame end is designing requirement distance.
6. drum type filter screen side seal board mounting method according to claim 5, is characterized in that, described side seal board installs rear use distance measurement block to carry out checking and adjusting, and makes the distance of described side seal board and described frame end meet designing requirement; Described distance measurement block is block structure, and one end is provided with link bolt hole, and for distance measurement block being connected to axial runout value maximum on described frame, the other end is the smooth free end of end face; Described frame end, to the vertical distance of described distance measurement block free end, is just the designing requirement distance of described side seal board and described frame spacing; When checking, be rotatably installed with the drum type filter screen of described distance measurement block, if there is the situation even occurring that described drum type filter screen cannot rotate that rubs in the free end of described distance measurement block and the somewhere of described side seal board, adjustment side seal board, reaches designing requirement distance to make the distance herein between side seal board and described frame end.
7. drum type filter screen side seal board mounting method according to claim 6, it is characterized in that, for the center line of link bolt hole that is connected with the described frame vertical distance to described another vertical plane of L-type angle steel on described L-type angle steel, with the equal and opposite in direction for the center line to the vertical distance of the free end end face of described distance measurement block that are fixed to the link bolt hole on described frame on described distance measurement block, and for fixing described L-type angle steel be the bolt of same model for the bolt of fixing described distance measurement block, now, described frame is then same bolt hole for the bolt hole of fixing described L-type angle steel and the bolt hole for fixing described distance measurement block.
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2014
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JP2002356863A (en) * | 2001-06-01 | 2002-12-13 | Toda Constr Co Ltd | First floor preconstruction method in reverse construction method |
CN101579589A (en) * | 2009-06-19 | 2009-11-18 | 中冶南方工程技术有限公司 | Corrugated filter screen |
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