CN109854312B - Tool for aligning threads of bedplate of steam turbine generator unit in place and construction method - Google Patents
Tool for aligning threads of bedplate of steam turbine generator unit in place and construction method Download PDFInfo
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- CN109854312B CN109854312B CN201910082270.4A CN201910082270A CN109854312B CN 109854312 B CN109854312 B CN 109854312B CN 201910082270 A CN201910082270 A CN 201910082270A CN 109854312 B CN109854312 B CN 109854312B
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Abstract
The invention relates to the field of equipment installation, in particular to a tool for aligning and positioning a thread of a bedplate of a turbo generator unit and a construction method. The purpose is to ensure that the elevation accuracy and the in-place construction efficiency of the bedplate of the steam turbine generator set are improved in the one-time alignment and in-place process. The method has the advantages of simple construction and high operation safety factor, reduces the cost of manual leveling and alignment in the prior art, and improves the alignment and positioning precision and positioning efficiency of the bedplate. According to the invention, in the alignment and positioning process of the bedplate, the pedestal support and the equipment body of each mechanical equipment, the alignment and positioning can be performed at one time, so that the construction process is simplified.
Description
Technical Field
The invention relates to the field of equipment installation, in particular to a tool for aligning threads of a bedplate of a steam turbine generator unit in place and a construction method.
Background
The platform plate of the steam turbine generator unit is aligned and positioned by adopting a construction method of a traditional manual roughening equipment foundation and adjusting an inclined sizing block, the manual roughening construction efficiency is low, the labor cost is high, and the accuracy is not easy to control; and the alignment elevation of the wedge is adjusted manually, so that the alignment in-place is affected by uncontrollable factors, the construction efficiency is low, and the alignment in-place accuracy of the upper equipment is affected.
Disclosure of Invention
The invention aims to solve the problems and provides a tool and a construction method for aligning and positioning the threads of a bedplate of a steam turbine generator unit.
The purpose of the invention is realized by the following technical scheme:
a thread alignment and positioning tool for a platen of a steam turbine generator unit comprises a measuring and positioning screw sleeve, a measuring and positioning screw, a straight thread steel claw flat sizing block sleeve, a straight thread steel claw flat sizing block, a fine adjustment steel bolt nut and an inclined sizing block;
the measuring and positioning screw sleeve is embedded around the equipment foundation of the turbo generator set; the measuring and positioning screw is in threaded connection with the measuring and positioning screw sleeve and protrudes out of the equipment foundation of the steam turbine generator unit for elevation fixing;
a straight thread steel claw flat sizing block sleeve is embedded at a corresponding position below each bedplate of the steam turbine generator unit; the straight thread steel claw flat shim iron is in threaded connection with the straight thread steel claw flat shim iron sleeve and protrudes out of the equipment foundation of the steam turbine generator unit;
the upper surface of the straight-thread steel claw flat sizing block is provided with a plurality of fine-tuning steel bolts, the heads of the fine-tuning steel bolts are placed on the upper surface of the straight-thread steel claw flat sizing block, and fine-tuning steel bolt nuts are in threaded connection with screw rods of the fine-tuning steel bolts;
the upper surface of the straight thread steel claw flat sizing block is provided with a plurality of groups of inclined sizing blocks, and the inclined sizing blocks are used for supporting the bedplate.
The head of the fine-tuning steel bolt is a plane.
The upper surface of the fine-tuning steel bolt nut is a plane.
The central shafts of the measuring and positioning screw sleeve, the measuring and positioning screw, the straight thread steel claw flat sizing block sleeve, the straight thread steel claw flat sizing block, the fine adjustment steel bolt and the fine adjustment steel bolt nut are all in a vertical state.
And the straight thread steel claw flat sizing block is provided with a group of inclined sizing blocks at the corresponding position of each edge of the bedplate.
A turbo generator set bedplate thread alignment construction method in place is carried out by using the tool and comprises the following steps:
s1: before the construction of the equipment foundation of the steam turbine generator unit, burying a plurality of measuring and positioning screw sleeves around the equipment foundation of the steam turbine generator unit; installing a measuring and positioning screw into a measuring and positioning screw sleeve and screwing the measuring and positioning screw into a designed elevation;
s2: in the process of installing a basic template of the turbo generator unit equipment, pre-embedding a straight-thread steel claw flat sizing block sleeve in place according to a designed position by taking a measuring positioning screw as a reference; screwing the straight thread steel claw flat sizing block to ensure that the straight thread steel claw flat sizing block meets the requirement of the accuracy of alignment and in-place of the bedplate of the steam turbine generator unit, and pouring concrete to form a steam turbine generator unit equipment foundation;
s3: when the foundation of the turbo generator unit equipment reaches the design strength, placing a fine-tuning steel bolt on a straight-thread steel claw flat sizing block, positioning a fine-tuning steel bolt nut at the upper end part of a fine-tuning steel bolt screw, then placing a bedplate on the fine-tuning steel bolt nut, taking an embedded measuring and positioning screw as a reference, performing deviation measurement on the bedplate and aligning by adjusting the fine-tuning steel bolt nut until the bedplate is aligned and positioned; and then, inserting an inclined sizing block between the bedplate and the straight thread steel claw flat sizing block, screwing a fine tuning steel bolt nut on the fine tuning steel bolt after the gap between the measuring bedplate and the inclined sizing block reaches a preset requirement, so that the bedplate is located on the inclined sizing block, and then taking out the screwed fine tuning steel bolt and the fine tuning steel bolt nut.
In S3, a clearance between the platen and the wedge is measured by a feeler gauge.
Compared with the prior art, the invention has the following beneficial effects:
the measuring and positioning screw sleeve of the tool for aligning the threads of the bedplate of the steam turbine generator unit in place is embedded around the equipment foundation of the steam turbine generator unit; the measuring and positioning screw is in threaded connection with the measuring and positioning screw sleeve and protrudes out of the equipment foundation of the steam turbine generator unit for elevation determination, and before the equipment foundation of the steam turbine generator unit is constructed, the measuring and positioning screw is installed in the measuring and positioning screw sleeve and is screwed to a designed elevation; a straight thread steel claw flat sizing block sleeve is embedded at a corresponding position below each bedplate of the steam turbine generator unit; the straight-thread steel claw flat sizing block is in threaded connection with a straight-thread steel claw flat sizing block sleeve and protrudes out of a turbo generator unit equipment foundation, and in the installation process of a turbo generator unit equipment foundation template, the straight-thread steel claw flat sizing block sleeve is pre-embedded in place according to a designed position by taking a measuring and positioning screw as a reference; screwing the straight thread steel claw flat sizing block to ensure that the straight thread steel claw flat sizing block meets the requirement of the accuracy of alignment and in-place of the bedplate of the steam turbine generator unit, and pouring concrete to form a steam turbine generator unit equipment foundation; the method comprises the following steps that a plurality of fine-tuning steel bolts are arranged on the upper surface of a straight-thread steel claw flat sizing block, the heads of the fine-tuning steel bolts are placed on the upper surface of the straight-thread steel claw flat sizing block, fine-tuning steel bolt nuts are in threaded connection with screw rods of the fine-tuning steel bolts, when the foundation of the steam turbine generator unit reaches design strength, the fine-tuning steel bolt nuts are rotated to the upper end portions of the fine-tuning steel bolt screw rods, a bedplate is placed on the fine-tuning steel bolt nuts, and deviation measurement and alignment are carried out on the bedplate by adjusting the fine-tuning steel bolt nuts with pre-embedded measuring and positioning screws as references until the bedplate is aligned and; the upper surface of the straight-thread steel claw flat sizing block is provided with a plurality of groups of inclined sizing blocks, the inclined sizing blocks are used for supporting the bedplate, after the bedplate is aligned and in place, the inclined sizing blocks are stuffed between the bedplate and the straight-thread steel claw flat sizing block, after the gap between the bedplate and the inclined sizing blocks is measured to reach the preset requirement, fine-tuning steel bolt nuts on fine-tuning steel bolts are screwed, the bedplate is located on the inclined sizing blocks, and then the screwed fine-tuning steel bolts and the fine-tuning steel bolt nuts are taken out; in conclusion, by adopting the alignment in-place tool disclosed by the invention, the measurement positioning screws are used for positioning in advance, so that the aim of uniformly aligning the in-place accuracy is fulfilled; the straight thread steel claw flat shim iron is pre-embedded to the surface of the equipment foundation in advance, so that the accuracy error and the construction time of the traditional manual scabbling and leveling are reduced; the bedplate is quickly positioned through fine adjustment of the steel bolts, and the requirement of 0.1mm elevation alignment deviation is met.
The tool for aligning and positioning the threads of the bedplate of the steam turbine generator unit has the advantages that the construction method based on the tool for aligning and positioning the threads of the bedplate of the steam turbine generator unit can ensure the uniform aligning and positioning accuracy of all the bedplate, is high in speed and few in working procedures, and can reduce the accuracy error and the construction time of manual roughening and leveling in the past, reduce the cost and improve the benefit.
Drawings
FIG. 1 is a schematic view of the assembly of a measuring and positioning screw and a sleeve of the measuring and positioning screw of the tool for aligning the threads of the bedplate of the steam turbine generator unit in place;
FIG. 2 is a schematic assembly diagram of a straight-thread steel claw shim and a straight-thread steel claw shim sleeve of the turbo generator unit platen thread alignment in-place tooling of the present invention;
FIG. 3 is an assembly schematic diagram of a fine adjustment steel bolt and a fine adjustment steel bolt nut of the turbo generator unit platen thread alignment in-place tool of the present invention;
FIG. 4 is a schematic view of the process of aligning and positioning the bedplate by using the thread aligning and positioning tool for the bedplate of the steam turbine generator unit;
FIG. 5 is a schematic diagram of a turbine generator unit table plate screw thread aligning and positioning tool of the present invention for qualified alignment and positioning of the table plate;
FIG. 6 is a schematic view of a tool for aligning and positioning a bedplate after the bedplate is aligned and positioned by using the thread aligning and positioning tool for a bedplate of a turbo generator unit of the invention;
FIG. 7 is a schematic view of the distribution of the components of the thread aligning and positioning tool for the bedplate of the steam turbine generator unit in the invention when the bedplate is aligned and positioned.
In the figure, 1-measuring and positioning screw, 2-measuring and positioning screw sleeve, 3-straight thread steel claw flat sizing block, 4-straight thread steel claw flat sizing block sleeve, 5-fine adjustment steel bolt and nut, 6-fine adjustment steel bolt, 7-platen and 8-oblique sizing block.
Detailed Description
The invention is further described below with reference to the figures and examples.
Referring to fig. 1-7, the thread alignment and positioning tool for the bedplate of the steam turbine generator unit comprises a measurement positioning screw sleeve 2, a measurement positioning screw 1, a straight thread steel claw flat sizing block sleeve 4, a straight thread steel claw flat sizing block 3, a fine adjustment steel bolt 6, a fine adjustment steel bolt nut 5 and an inclined sizing block 8; the measuring and positioning screw sleeve 2 is embedded around the equipment foundation of the turbo generator set; the measuring and positioning screw 1 is in threaded connection with the measuring and positioning screw sleeve 2 and protrudes out of the equipment foundation of the steam turbine generator unit for elevation fixing; a straight thread steel claw flat sizing block sleeve 4 is embedded at a corresponding position below each bedplate 7 of the turbo generator set; the straight thread steel claw flat sizing block 3 is in threaded connection with a straight thread steel claw flat sizing block sleeve 4 and protrudes out of the equipment foundation of the steam turbine generator unit; a plurality of fine-tuning steel bolts 6 are arranged on the upper surface of the straight-thread steel claw flat sizing block 3, the heads of the fine-tuning steel bolts 6 are placed on the upper surface of the straight-thread steel claw flat sizing block 3, and fine-tuning steel bolt nuts 5 are in threaded connection with screws of the fine-tuning steel bolts 6; the upper surface of the straight thread steel claw flat sizing block 3 is provided with a plurality of groups of inclined sizing blocks 8, and the inclined sizing blocks 8 are used for supporting the bedplate 7.
Wherein, the head of the fine tuning steel bolt 6 is a plane. The upper surface of the fine-tuning steel bolt and nut 5 is a plane. The central shafts of the measuring and positioning screw sleeve 2, the measuring and positioning screw 1, the straight thread steel claw flat sizing block sleeve 4, the straight thread steel claw flat sizing block 3, the fine adjustment steel bolt 6 and the fine adjustment steel bolt nut 5 are all in a vertical state. The straight thread steel claw flat sizing block 3 is provided with a group of inclined sizing blocks 8 at the corresponding positions of each edge of the bedplate 7.
The invention relates to a construction method for aligning threads of a bedplate of a steam turbine generator unit in place, which is carried out by using the alignment in-place tool and comprises the following steps:
1. before the construction of the equipment foundation of the steam turbine generator unit, after 8 measuring and positioning screw sleeves 2 are embedded and laid in symmetrical pre-positions around the equipment foundation of the steam turbine generator unit, referring to fig. 1, the measuring and positioning screws 1 are arranged in the measuring and positioning screw sleeves 2 and are screwed to a designed elevation; the straight thread steel claw flat sizing block 3 and the bedplate 7 are aligned in advance in place, so that the purpose of accurate and uniform alignment in place of 8 measuring and positioning screws is achieved by utilizing the screwing adjustment of the threads on the measuring and positioning screws 1, and the reference is also made for the subsequent alignment and positioning work.
2. In the installation process of the basic template of the steam turbine generator unit equipment, the straight-thread steel claw flat sizing block 3 is pre-embedded in place according to the design position by taking the measuring and positioning screw 1 as a reference, the straight thread on the straight-thread steel claw flat sizing block 3 is used for screwing the straight-thread steel claw flat sizing block 3 in a similar way, and referring to fig. 2, when the straight-thread steel claw flat sizing block 3 meets the requirement of the alignment and in-place accuracy, concrete is poured.
3. When the foundation of the turbo generator set equipment reaches the design strength, placing fine-tuning steel bolts 6 on straight-thread steel claw flat sizing blocks 3 pre-embedded in place in advance, attaching the plane of the heads of the fine-tuning steel bolts 6 to the upper surfaces of the straight-thread steel claw flat sizing blocks 3, positioning fine-tuning steel bolt nuts 5 at the upper ends of screws of the fine-tuning steel bolts 6, keeping a certain adjusting distance between the upper ends of the screws of the fine-tuning steel bolts 6 and the upper end surfaces of the fine-tuning steel bolt nuts 5 to ensure that the fine-tuning steel bolt nuts 5 can adjust the height of a bedplate 7, adjusting the upper end surfaces of all the fine-tuning steel bolt nuts 5 to the same horizontal plane by taking the measuring positioning screws 1 as a reference, then, as shown in figure 4, positioning four corners of the bedplate 7 of the turbo generator set on the fine-tuning steel bolt nuts 5, taking the pre-embedded measuring positioning screws 1 as a reference, utilizing a total, if deviation exists, the fine adjustment steel bolt nut 5 on the fine adjustment steel bolt 6 under the bedplate is screwed by a spanner to perform adjustment. After the bedplate 7 is aligned and positioned, as shown in fig. 5, an inclined sizing block 8 is plugged between the bedplate 7 and the straight-thread steel claw flat sizing block 3 according to design and standard requirements, each edge of the bedplate 7 is correspondingly provided with the inclined sizing block 8, then whether a gap between the inclined sizing block 8 and the edge of the bedplate 7 is qualified or not is checked by using a 0.05mm filler gauge, if not, the position of the inclined sizing block 8 is adjusted until the gap is qualified, after the gap is qualified, as shown in fig. 6, the fine-adjustment steel bolt nut 5 on the steel bolt 6 is finely adjusted and screwed, so that the bedplate 7 is located on the inclined sizing block 8, and then the finely-adjusted steel bolt 6 and the fine-adjustment steel bolt nut 5 are screwed and taken out for the next use. According to the invention, the fine-tuning steel bolt nut 5 on the fine-tuning steel bolt 6 is screwed, so that the requirement of aligning deviation of the in-place 0.1mm elevation of the bedplate 7 can be quickly met, and the aims of simple installation, adjustment and disassembly, easiness in operation and recycling can be achieved.
Claims (7)
1. A thread alignment and in-place tool for a platen of a steam turbine generator unit is characterized by comprising a measurement positioning screw sleeve (2), a measurement positioning screw (1), a straight thread steel claw flat sizing block sleeve (4), a straight thread steel claw flat sizing block (3), a fine adjustment steel bolt (6), a fine adjustment steel bolt nut (5) and an inclined sizing block (8);
the measuring and positioning screw sleeve (2) is embedded around the equipment foundation of the turbo generator set; the measuring and positioning screw (1) is in threaded connection with the measuring and positioning screw sleeve (2) and protrudes out of the equipment foundation of the turbo generator set for elevation fixing;
a straight thread steel claw flat sizing block sleeve (4) is embedded at a corresponding position below each bedplate (7) of the steam turbine generator unit; the straight thread steel claw flat sizing block (3) is in threaded connection with the straight thread steel claw flat sizing block sleeve (4) and protrudes out of the equipment foundation of the steam turbine generator unit;
the upper surface of the straight-thread steel claw flat sizing block (3) is provided with a plurality of fine-tuning steel bolts (6), the heads of the fine-tuning steel bolts (6) are placed on the upper surface of the straight-thread steel claw flat sizing block (3), and fine-tuning steel bolt nuts (5) are in threaded connection with screws of the fine-tuning steel bolts (6);
the upper surface of the straight thread steel claw flat sizing block (3) is provided with a plurality of groups of inclined sizing blocks (8), and the inclined sizing blocks (8) are used for supporting the bedplate (7).
2. The tool for aligning threads of the bedplate of the steam turbine generator unit according to claim 1, wherein the head of the fine-adjustment steel bolt (6) is a plane.
3. The tool for aligning the threads of the bedplate of the steam turbine generator unit according to claim 1, wherein the upper surface of the fine-adjustment steel bolt nut (5) is a plane.
4. The tool for aligning the threads of the bedplate of the steam turbine generator unit in position according to claim 1, wherein central shafts of a measuring positioning screw sleeve (2), a measuring positioning screw (1), a straight thread steel claw flat sizing block sleeve (4), a straight thread steel claw flat sizing block (3), a fine adjustment steel bolt (6) and a fine adjustment steel bolt nut (5) are all in a vertical state.
5. The tool for aligning the threads of the bedplate of the steam turbine generator unit according to claim 1, wherein a group of inclined sizing blocks (8) are arranged on the straight thread steel claw flat sizing block (3) at positions corresponding to each side of the bedplate (7).
6. A thread alignment and positioning construction method for a bedplate of a steam turbine generator unit is characterized in that the tool of any one of claims 1 to 5 is used for carrying out the thread alignment and positioning construction method for the bedplate of the steam turbine generator unit, and comprises the following steps:
s1: before the construction of the equipment foundation of the steam turbine generator unit, a plurality of measuring and positioning screw sleeves (2) are embedded around the equipment foundation of the steam turbine generator unit; installing the measuring and positioning screw (1) into the measuring and positioning screw sleeve (2) and screwing to a designed elevation;
s2: in the installation process of a basic template of the turbo generator unit equipment, pre-embedding a straight thread steel claw flat sizing block sleeve (4) in place according to a design position by taking a measuring positioning screw (1) as a reference; screwing the straight thread steel claw flat sizing block (3) to ensure that the straight thread steel claw flat sizing block (3) meets the requirement of the accuracy of alignment and in-place of the bedplate of the steam turbine generator unit, and then pouring concrete to form a steam turbine generator unit equipment foundation;
s3: when the foundation of the turbo generator set equipment reaches the design strength, placing a fine-tuning steel bolt (6) on a straight-thread steel claw flat sizing block (3), positioning a fine-tuning steel bolt nut (5) at the upper end part of a screw rod of the fine-tuning steel bolt (6), then placing a bedplate (7) on the fine-tuning steel bolt nut (5), taking a pre-embedded measuring positioning screw (1) as a reference, carrying out deviation measurement on the bedplate (7) and aligning by adjusting the fine-tuning steel bolt nut (5) until the bedplate (7) is aligned and positioned; and then, an inclined sizing block (8) is stuffed between the bedplate (7) and the straight thread steel claw flat sizing block (3), after the gap between the measuring bedplate (7) and the inclined sizing block (8) reaches a preset requirement, a fine tuning steel bolt nut (5) on the fine tuning steel bolt (6) is screwed, the bedplate (7) is made to be located on the inclined sizing block (8), and then the screwed fine tuning steel bolt (6) and the fine tuning steel bolt nut (5) are taken out.
7. The thread aligning and positioning construction method for the bedplate of the steam turbine generator unit according to claim 6, wherein in S3, a clearance between the bedplate (7) and the inclined sizing block (8) is measured by a feeler gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910082270.4A CN109854312B (en) | 2019-01-28 | 2019-01-28 | Tool for aligning threads of bedplate of steam turbine generator unit in place and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910082270.4A CN109854312B (en) | 2019-01-28 | 2019-01-28 | Tool for aligning threads of bedplate of steam turbine generator unit in place and construction method |
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| Publication Number | Publication Date |
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| CN109854312A CN109854312A (en) | 2019-06-07 |
| CN109854312B true CN109854312B (en) | 2021-04-13 |
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| CN201910082270.4A Active CN109854312B (en) | 2019-01-28 | 2019-01-28 | Tool for aligning threads of bedplate of steam turbine generator unit in place and construction method |
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Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002349289A (en) * | 2001-05-21 | 2002-12-04 | Toshiba Corp | Sole plate for turbine and power generation plant apparatus using the sole plate |
| CN202228139U (en) * | 2011-08-15 | 2012-05-23 | 上海电气电站设备有限公司 | Low-pressure outer cylinder support structure for turbine |
| CN103628936B (en) * | 2013-12-11 | 2015-12-30 | 中国化学工程第四建设有限公司 | Small steam turbine drives synchronous generator installation method in bulk |
| CN103939156B (en) * | 2014-05-14 | 2015-05-27 | 山东电力建设第三工程公司 | Method for installing nuclear power half-speed steam turbine |
| CN104019726A (en) * | 2014-06-20 | 2014-09-03 | 山东电力建设第一工程公司 | Elevation centering device of steam turbine generator unit platen |
| CN203906020U (en) * | 2014-06-20 | 2014-10-29 | 山东电力建设第一工程公司 | Coupling alignment device |
| CN105090686B (en) * | 2015-09-25 | 2017-10-13 | 东方电气集团东方汽轮机有限公司 | The overall Turbo-generator Set delivered is high, middle die block installation adjusting method |
| CN106285793B (en) * | 2016-08-22 | 2017-12-29 | 上海二十冶建设有限公司 | The installation method of condensing turbine |
| JP6778089B2 (en) * | 2016-11-22 | 2020-10-28 | 三菱パワー株式会社 | Turbine assembly method |
| CN106836270A (en) * | 2017-01-24 | 2017-06-13 | 中国能源建设集团北京电力建设公司 | A kind of Turbo-generator Set subsidiary engine equipment parallels mounting process |
| CN207824374U (en) * | 2017-12-15 | 2018-09-07 | 山东电建建设集团有限公司 | Adjusting apparatus and Turbo-generator Set alignment device |
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2019
- 2019-01-28 CN CN201910082270.4A patent/CN109854312B/en active Active
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