CN103967537B - Half Speed formula turbine low pressure cylinder load distribution method - Google Patents
Half Speed formula turbine low pressure cylinder load distribution method Download PDFInfo
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- CN103967537B CN103967537B CN201410195314.1A CN201410195314A CN103967537B CN 103967537 B CN103967537 B CN 103967537B CN 201410195314 A CN201410195314 A CN 201410195314A CN 103967537 B CN103967537 B CN 103967537B
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Abstract
The invention discloses a kind of Half Speed formula turbine low pressure cylinder load distribution method, comprise the following steps: (1) judges single ram's horn slope trend; (2) according to single ram's horn slope trend by even for single ram's horn load; (3) whole cylinder load distribution: arrange dial gauge from arbitrary ram's horn both sides, intermediate arrangement jack bottom ram's horn, the arbitrary ram's horn of jack-up, must the oil pressure value of this ram's horn, jack pressure release; The oil pressure value after residue ram's horn jack-up is measured respectively by same method; To adjust the oil pressure value of two ram's horns of valve side to be one group, the oil pressure value of two ram's horns of motor side is another group, respectively two oil pressure values in more same group; Adjust the thickness of same group of ram's horn pad according to the difference of oil pressure value, until the oil pressure value of same group of two ram's horns is equal, then load distribution completes.The present invention compared with traditional load distribution method, simple to operate, distribute reasonable, safe and reliable.
Description
Technical field
The present invention relates to machine utilization distribution technique field, particularly relate to a kind of 1,000,000 nuclear power Siemens technique Half Speed formula turbine low pressure cylinder load distribution methods.
Background technique
The conventional method of turbine low pressure cylinder load distribution is directly divided into two groups to carry out to steam turbine four ram's horns, its concrete grammar places hydraulic jack below each low pressure (LP) cylinder ram's horn, single jack-up ram's horn, dial gauge is used to monitor the casing lug amount of raising, read jack oil pressure meter reading, the data that the data that the left side of casing lug homonymy is recorded and the right are recorded compare.When taking out pad in the shim pack under the ram's horn from the larger side of load and being encased inside opposite side, it is less that the side that former load is larger becomes load, just can think that ram's horn load is balanced.Because this machine set type low pressure (LP) cylinder weight is comparatively large, and two shim pack below each ram's horn at four angles, are had to support, if conventionally carry out load distribution, not only consuming time longer but also be difficult to realize accuracy registration.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of Half Speed formula turbine low pressure cylinder load distribution method that effectively can improve load distribution efficiency and precision.
For solving the problems of the technologies described above, technological scheme of the present invention is:
Half Speed formula turbine low pressure cylinder load distribution method, comprises the following steps:
(1) judge steam turbine single ram's horn slope trend: arrange dial gauge and zero setting in single ram's horn both side ends, intermediate arrangement hydraulic jack bottom ram's horn, jack-up ram's horn, judge ram's horn slope trend by two dial gauge readings;
(2) according to steam turbine single ram's horn slope trend by even for single ram's horn load: by the hydraulic jack pressure release of centre, dial gauge is zero setting again; Hydraulic jack is moved to side edge bottom ram's horn, jack-up ram's horn, must this side oil pressure value, hydraulic jack is moved to opposite side symmetry place bottom ram's horn, jack-up ram's horn, obtains opposite side oil pressure value;
The relatively oil pressure reading of twice, judge that adjustment ram's horn both sides need the thickness of mobile pad according to the difference of two oil pressure values, hydraulic jack is moved to center position bottom ram's horn, jack-up amount is slowed down after jack-up ram's horn to two dial gauge all has reading, twitch shim pack simultaneously, when shim pack can be twitched, stopping pushes, extract shim pack out completely, adjustment ram's horn both sides pad, reset shim pack afterwards, after reset shim pack, until single ram's horn both sides oil pressure is equal or after mobile one-sided pad to opposite side, single ram's horn both sides oil pressure value size cases is exchanged, then single ram's horn load distribution completes, realize the object of the single ram's horn load distribution of adjustment, the load distribution of all the other ram's horns is carried out according to same method,
(3) whole cylinder load distribution: arrange dial gauge and zero setting from arbitrary ram's horn both sides, intermediate arrangement jack bottom ram's horn, arbitrary ram's horn 0.2 ~ 0.5mm described in jack-up, must the oil pressure value of this ram's horn, hydraulic jack pressure release, and dial gauge is zero setting again; The oil pressure value after residue ram's horn jack-up 0.2 ~ 0.5mm is measured respectively by same method; To adjust the oil pressure value of two ram's horns of valve side to be one group, the oil pressure value of two ram's horns of motor side is another group, respectively two oil pressure values in more same group; Adjust the thickness of same group of ram's horn pad according to the difference of oil pressure value, until the oil pressure value of same group of two ram's horns is equal or after side 0.04 ~ 0.06mm pad is transferred to opposite side, both sides oil pressure value size cases is exchanged, then load distribution completes.
The present invention is compared with traditional load distribution method, simple to operate, distribute reasonable, safe and reliable, effectively can improve precision and the working efficiency of Half Speed formula turbine low pressure cylinder load distribution.
Accompanying drawing explanation
The following drawings is only intended to schematically illustrate the present invention and explain, not delimit the scope of the invention.Wherein:
Fig. 1 is the structural representation of the Half Speed formula turbine low pressure cylinder of the embodiment of the present invention;
In figure: 1-Half Speed formula turbine low pressure cylinder; 2-ram's horn; 3-adjusts valve end; 4-motor side.
Embodiment
Below in conjunction with drawings and Examples, set forth the present invention further.In the following detailed description, the mode only by illustrating describes some one exemplary embodiment of the present invention.Undoubtedly, those of ordinary skill in the art can recognize, when without departing from the spirit and scope of the present invention, can revise by various different mode to described embodiment.Therefore, accompanying drawing is illustrative with being described in essence, instead of for limiting the protection domain of claim.
Embodiment: as shown in Figure 1, bottom Half Speed formula turbine low pressure cylinder 1, corner place has four ram's horns 2 respectively, and ram's horn 2 both sides are adjust valve end 3 and motor side 4 respectively.
Half Speed formula turbine low pressure cylinder load distribution method, comprises the following steps:
(1) single ram's horn 2 slope trend is judged: arrange dial gauge and zero setting in single ram's horn 2 both side ends, intermediate arrangement hydraulic jack bottom ram's horn 2, jack-up ram's horn 2, compares two dial gauge readings, judges ram's horn 2 slope trend;
(2) according to single ram's horn 2 slope trend by even for single ram's horn 2 load: by the hydraulic jack pressure release of centre, dial gauge is zero setting again; Hydraulic jack is moved to side (keeping to the side) bottom ram's horn 2, jack-up ram's horn 2 as far as possible, read oil pressure and record; The hydraulic jack of this side is moved to opposite side symmetry place bottom ram's horn 2, jack-up ram's horn 2, reads oil pressure and record; The relatively oil pressure reading of twice, judges according to oil pressure difference the thickness needing mobile pad; Hydraulic jack is moved in the middle of bottom ram's horn 2, after jack-up ram's horn 2 to dial gauge all has reading, slow down jack-up amount, attempt twitching shim pack simultaneously, when shim pack can be twitched, stop pushing; Extract shim pack out completely, after calculating data point reuse pad, reset shim pack, until ram's horn 2 both sides oil pressure is equal or after mobile one-sided pad to opposite side, ram's horn 2 both sides oil pressure value size cases is exchanged, then single ram's horn load distribution completes; The load distribution of all the other ram's horns is carried out according to same method.Both sides oil pressure size cases is exchanged and is judged according to related domain general measure standard.
(3) whole cylinder load distribution: arrange dial gauge and zero setting from arbitrary ram's horn 2 both sides (adjusting valve end 3, motor side 4), intermediate arrangement jack bottom ram's horn 2, the arbitrary ram's horn 0.3mm of jack-up low pressure (LP) cylinder, reads oil pressure and record, hydraulic jack pressure release, dial gauge is zero setting again; The oil pressure value after residue ram's horn jack-up 0.3mm is measured respectively by same method; To adjust two oil pressure readings of valve end 3 side to be one group, two oil pressure readings of motor side 4 side are another group, respectively two oil pressure readings in more same group; Judge the thickness of the pad needing in same group to shift according to difference, until the oil pressure value of same group of two ram's horns is equal or after side 0.05mm pad is transferred to opposite side, both sides oil pressure value size cases is exchanged, then load distribution completes.
The present invention is compared with traditional load distribution method, simple to operate, distribute reasonable, safe and reliable, effectively can improve precision and the working efficiency of 1,000,000 grades of nuclear power Half Speed formula turbine low pressure cylinder load distribution.
More than show and describe basic principle of the present invention, major character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (1)
1. Half Speed formula turbine low pressure cylinder load distribution method, is characterized in that, comprise the following steps:
(1) judge steam turbine single ram's horn slope trend: arrange dial gauge and zero setting in single ram's horn both side ends, intermediate arrangement hydraulic jack bottom ram's horn, jack-up ram's horn, judge ram's horn slope trend by two dial gauge readings;
(2) according to steam turbine single ram's horn slope trend by even for single ram's horn load: by the hydraulic jack pressure release of centre, dial gauge is zero setting again; Hydraulic jack is moved to side edge bottom ram's horn, jack-up ram's horn, must this side oil pressure value, hydraulic jack is moved to opposite side symmetry place bottom ram's horn, jack-up ram's horn, obtains opposite side oil pressure value;
The relatively oil pressure reading of twice, judge that adjustment ram's horn both sides need the thickness of mobile pad according to the difference of two oil pressure values, hydraulic jack is moved to center position bottom ram's horn, jack-up amount is slowed down after jack-up ram's horn to two dial gauge all has reading, twitch shim pack simultaneously, when shim pack can be twitched, stopping pushes, extract shim pack out completely, adjustment ram's horn both sides pad, reset shim pack afterwards, after reset shim pack, until single ram's horn both sides oil pressure is equal or after mobile one-sided pad to opposite side, single ram's horn both sides oil pressure value size cases is exchanged, then single ram's horn load distribution completes, realize the object of the single ram's horn load distribution of adjustment, the load distribution of all the other ram's horns is carried out according to same method,
(3) whole cylinder load distribution: arrange dial gauge and zero setting from arbitrary ram's horn both sides, intermediate arrangement jack bottom ram's horn, arbitrary ram's horn 0.2 ~ 0.5mm described in jack-up, must the oil pressure value of this ram's horn, hydraulic jack pressure release, and dial gauge is zero setting again; The oil pressure value after residue ram's horn jack-up 0.2 ~ 0.5mm is measured respectively by same method; To adjust the oil pressure value of two ram's horns of valve side to be one group, the oil pressure value of two ram's horns of motor side is another group, respectively two oil pressure values in more same group; Adjust the thickness of same group of ram's horn pad according to the difference of oil pressure value, until the oil pressure value of same group of two ram's horns is equal or after side 0.04 ~ 0.06mm pad is transferred to opposite side, both sides oil pressure value size cases is exchanged, then load distribution completes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410195314.1A CN103967537B (en) | 2014-05-09 | 2014-05-09 | Half Speed formula turbine low pressure cylinder load distribution method |
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| CN201410195314.1A CN103967537B (en) | 2014-05-09 | 2014-05-09 | Half Speed formula turbine low pressure cylinder load distribution method |
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| CN103967537A CN103967537A (en) | 2014-08-06 |
| CN103967537B true CN103967537B (en) | 2015-12-02 |
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| CN115126558B (en) * | 2021-03-29 | 2024-08-09 | 福建福清核电有限公司 | Method for measuring and distributing load of high-pressure cylinder of nuclear turbine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD244784A1 (en) * | 1985-12-24 | 1987-04-15 | Goerlitzer Maschinenbau Veb | DEVICE FOR POSITIONING PENDULUM STATIONS ON STEAM OR GAS TURBINE HOLES |
| CN101608556A (en) * | 2008-06-19 | 2009-12-23 | 上海电气电站设备有限公司 | A kind of large ground low-pressure internal cylinder |
| CN201428480Y (en) * | 2009-05-19 | 2010-03-24 | 山东齐鲁电机制造有限公司 | Supporting device of high pressure cylinder and front bearing box of steam turbine |
| RO127907A2 (en) * | 2011-04-15 | 2012-10-30 | Gheorghe Olaru | Protected one-way turbine |
| CN202894850U (en) * | 2012-11-18 | 2013-04-24 | 无锡明珠增压器制造有限公司 | Cutting machining fixture of turbine rotor shaft groove |
-
2014
- 2014-05-09 CN CN201410195314.1A patent/CN103967537B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD244784A1 (en) * | 1985-12-24 | 1987-04-15 | Goerlitzer Maschinenbau Veb | DEVICE FOR POSITIONING PENDULUM STATIONS ON STEAM OR GAS TURBINE HOLES |
| CN101608556A (en) * | 2008-06-19 | 2009-12-23 | 上海电气电站设备有限公司 | A kind of large ground low-pressure internal cylinder |
| CN201428480Y (en) * | 2009-05-19 | 2010-03-24 | 山东齐鲁电机制造有限公司 | Supporting device of high pressure cylinder and front bearing box of steam turbine |
| RO127907A2 (en) * | 2011-04-15 | 2012-10-30 | Gheorghe Olaru | Protected one-way turbine |
| CN202894850U (en) * | 2012-11-18 | 2013-04-24 | 无锡明珠增压器制造有限公司 | Cutting machining fixture of turbine rotor shaft groove |
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| CN103967537A (en) | 2014-08-06 |
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Address after: 250100 No. 297 industrial North Road, Licheng District, Shandong, Ji'nan Patentee after: POWERCHINA NUCLEAR ENGINEERING Co.,Ltd. Address before: 250100 No. 297 industrial North Road, Licheng District, Shandong, Ji'nan Patentee before: POWERCHINA NUCLEAR ENGINEERING Co. Address after: 250100 No. 297 industrial North Road, Licheng District, Shandong, Ji'nan Patentee after: POWERCHINA NUCLEAR ENGINEERING Co. Address before: 250100 No. 297 industrial North Road, Licheng District, Shandong, Ji'nan Patentee before: SHANDONG ELECTRIC POWER CONSTRUCTION NO.2 Co. |
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