CN101845973A - Vertical pipe drainage system for turbine condenser - Google Patents
Vertical pipe drainage system for turbine condenser Download PDFInfo
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- CN101845973A CN101845973A CN 201010161132 CN201010161132A CN101845973A CN 101845973 A CN101845973 A CN 101845973A CN 201010161132 CN201010161132 CN 201010161132 CN 201010161132 A CN201010161132 A CN 201010161132A CN 101845973 A CN101845973 A CN 101845973A
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Abstract
The invention relates to a vertical pipe drainage system for a turbine condenser, comprising a first vertical pipe and a second vertical pipe, wherein, the first vertical pipe is arranged under a turbine head, is used for collecting high-pressure emergency drain of a turbine and discharges steam and drainage to the condenser through the exhaust pipe of the first vertical pipe and the drain pipe of the first vertical pipe which are connected with the first vertical pipe; and the second vertical pipe is arranged under a turbine generator, is used for collecting the low-pressure emergency drain of the turbine, and discharges steam and drainage to the condenser through the exhaust pipe of the second vertical pipe and the drain pipe of the second vertical pipe which are connected with the second vertical pipe. The vertical pipe drainage system for the turbine condenser changes the original drainage design proposal of the large water tank of the turbine condenser, adopts the vertical pipes to enable drainage which is finally discharged into the condenser to be more uniform, has the smallest thermal shock on the main body of the condenser device, improves operation safety of a nuclear power plant, and effectively protects the drain pipes of the condenser and the whole plant.
Description
Technical field
The present invention relates to the nuclear power field, more particularly, relate to a kind of vertical pipe drainage system for turbine condenser.
Background technique
The steam of nuclear power plant is saturated vapour, and parameter is lower, so the amount of steam is bigger, when moving in nuclear power plant, it is a lot of that generation hydrophobic also howed than conventional thermal power station.When the steam turbine removal of load, the Steam Turbine's Main Vaper Valve Close All is with the protection steam turbine, and this time, other system also can produce a lot promptly hydrophobicly, entered in the turbine condenser.
For example, in nuclear power plant's steam turbine of CPR1000, mainly below the head of steam turbine discharge that No. 6 and No. 7 are high to be added emergent hydrophobicly, and the 6A height that correspondingly is provided with adjacent steam turbine of arranging adds the low height that adds reheater A pipe, separator that emergent drain pipe, 7A height add emergent drain pipe, separator housing A pipe, separator and adds reheater A and manage and the ABP recirculation pipe.It is 7 hydrophobic after taking out female pipe check valve to discharge, 6 hydrophobic after taking out female pipe check valve, 6 hydrophobic after taking out the 6A check valve, 6 hydrophobic after taking out the 6B check valve, 7 hydrophobic after taking out the 7A check valve, 7 hydrophobic after taking out the 7B check valve also to be provided with the first hydrophobic collector at close position.In addition, the head of steam turbine below also is provided with adjacent 6B height of arranging and adds the low height that adds reheater B pipe, separator that emergent drain pipe, 7B height add emergent drain pipe, separator housing B pipe, separator and add reheater B pipe and vaporizer blowdown recycled water return pipe.It is 3 hydrophobic after being evacuated to that 3B is low to add check valve to discharge, 3 hydrophobic after being evacuated to that 3A is low to add check valve, 4 hydrophobic after being evacuated to that 4B is low to add check valve, 4 hydrophobic after being evacuated to that 4A is low to add check valve, 5 hydrophobic before taking out check valve also to be provided with the second hydrophobic collector at close position.
Below the generator of steam turbine main discharge No. 1, No. 2, No. 3 of steam turbine and No. 4 low add emergent hydrophobic, and the corresponding 3A that is provided with steam turbine low add emergent drain pipe, 3B low add emergent drain pipe, gland heater conduit pipe, 4A low add emergent drain pipe, 4B low add emergent drain pipe, No. 1 low add normal and emergent drain pipe, No. 2 low add normal and emergent drain pipe, No. 1 with No. 2 low plus hydrophobic heater conduit pipes, coagulate the pump recirculation pipe.In addition, the generator of steam turbine below also is provided with the VENT collector and lowly adds 4B operation steam discharge gas to discharge, lowly adds 4A operation steam discharge gas, lowly adds 3B operation steam discharge gas, lowly adds 3A operation steam discharge gas, oxygen-eliminating device operation steam discharge gas, coagulates the pump steam discharge.
Yet, above-mentionedly enter in turbine condenser hydrophobic that No. 6 and No. 7 are high to add emergent drain temperatures than higher, No. 1, No. 2, No. 3 and No. 4 are low, and to add emergent drain temperature lower, when these are hydrophobic when entering vapour condenser together, just cause the large water tank of the vapour condenser inequality of being heated easily, large water tank is cracked.
Summary of the invention
The technical problem to be solved in the present invention is that the above-mentioned hydrophobic defective that influences that is easy to be subjected to the temperature inequality at existing turbine condenser provides a kind of vertical pipe drainage system for turbine condenser.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of vertical pipe drainage system for turbine condenser, the hydrophobic of different energy levels effectively made a distinction, and one road cooling water is set in each standpipe makes each standpipe heat load during operation all compare evenly; The final so hydrophobic temperature that enters vapour condenser can be lower, and is more approaching, smaller to the thermal shock of vapour condenser.
The invention provides a kind of vertical pipe drainage system for turbine condenser, comprising:
First standpipe is located at steam turbine head below, and the height that is used to collect steam turbine adds emergent hydrophobic, and respectively by the first standpipe outlet pipe that is attached thereto and the first vertical pipe drainage pipe with steam and the hydrophobic vapour condenser that is disposed to;
Second standpipe is located at turbine generator below, be used to collect steam turbine low add emergent hydrophobic, and by the second standpipe outlet pipe that is attached thereto and the second vertical pipe drainage pipe with steam and the hydrophobic vapour condenser that is disposed to.
In vertical pipe drainage system for turbine condenser of the present invention, described first standpipe and described steam turbine No. 6 highly add emergent drain pipes and link to each other with No. 7.
In vertical pipe drainage system for turbine condenser of the present invention, second standpipe and described steam turbine No. 1, No. 2, No. 3 link to each other with No. 4 emergent drain pipes of low price.
In vertical pipe drainage system for turbine condenser of the present invention, described first standpipe and second standpipe also are provided with water-cooling tube.
In vertical pipe drainage system for turbine condenser of the present invention, described first standpipe comprises No. 1 standpipe and No. 2 standpipes.
In vertical pipe drainage system for turbine condenser of the present invention, described No. 1 standpipe links to each other with following pipeline: the 6A height of steam turbine adds the low height that adds reheater A pipe, separator that emergent drain pipe, 7A height add emergent drain pipe, separator housing A pipe, separator and adds reheater A pipe and ABP recirculation pipe.
In vertical pipe drainage system for turbine condenser of the present invention, described No. 2 standpipes link to each other with following pipeline: the 6B height of steam turbine adds the low height that adds reheater B pipe, separator that emergent drain pipe, 7B height add emergent drain pipe, separator housing B pipe, separator and adds reheater B pipe and vaporizer blowdown recycled water return pipe.
In vertical pipe drainage system for turbine condenser of the present invention, described second standpipe links to each other with following pipeline: the 3A of steam turbine is low add emergent drain pipe, 3B low add emergent drain pipe, gland heater conduit pipe, 4A low add emergent drain pipe, 4B low add emergent drain pipe, No. 1 low add normal and emergent drain pipe, No. 2 low add normal and emergent drain pipe, No. 1 with No. 2 low plus hydrophobic heater conduit pipes, coagulate the pump recirculation pipe.
In vertical pipe drainage system for turbine condenser of the present invention, described No. 1 standpipe also is connected with the first hydrophobic collector, the described first hydrophobic collector be used to collect 7 take out hydrophobic behind female pipe check valve, 6 take out hydrophobic behind female pipe check valve, 6 take out hydrophobic behind the 6A check valve, 6 take out hydrophobic behind the 6B check valve, 7 take out hydrophobic behind the 7A check valve, 7 take out behind the 7B check valve hydrophobic.
In vertical pipe drainage system for turbine condenser of the present invention, described No. 2 standpipes also are connected with the second hydrophobic collector, the described second hydrophobic collector be used to collect 3 be evacuated to 3B low add hydrophobic behind the check valve, 3 be evacuated to 3A low add hydrophobic behind the check valve, 4 be evacuated to 4B low add hydrophobic behind the check valve, 4 be evacuated to 4A low add hydrophobic behind the check valve, 5 take out before the check valve hydrophobic.
In vertical pipe drainage system for turbine condenser of the present invention, described second standpipe also is connected with the VENT collector, and described VENT collector is used for collecting and lowly adds 4B operation steam discharge gas, lowly adds 4A operation steam discharge gas, lowly adds 3B operation steam discharge gas, lowly adds 3A operation steam discharge gas, oxygen-eliminating device operation steam discharge gas, coagulates the pump steam discharge.
Implement vertical pipe drainage system for turbine condenser of the present invention, have following beneficial effect: the present invention changes the hydrophobic design proposal of original turbine condenser large water tank, adopt new vertical pipe drainage design, the various hydrophobic of routine made a distinction according to energy grade, the drain water piping of so different energy levels can be safer in operation, and is more steady; The present invention makes finally to enter the hydrophobic more even of vapour condenser also by the absorption of standpipe to heat load, to the thermal shock minimum of vapour condenser apparatus body, has improved the Security of nuclear power plant's operation, effectively protects the drain water piping of vapour condenser and full factory.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is No. 1 a standpipe structural representation of turbine vapour condenser vertical pipe drainage system preferred embodiment of the present invention;
Fig. 2 is No. 2 standpipe structural representations of turbine vapour condenser vertical pipe drainage system preferred embodiment of the present invention;
Fig. 3 is No. 5 standpipe structural representations of turbine vapour condenser vertical pipe drainage system preferred embodiment of the present invention.
Embodiment
In order to make purpose of the present invention, technological scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.
The invention provides a kind of vertical pipe drainage system for turbine condenser, be used for the hydrophobic vapour condenser that is disposed to steam turbine.This vertical pipe drainage system for turbine condenser mainly comprises first standpipe and second standpipe.Wherein, first standpipe is located at steam turbine head below, be used to collect the higher height of steam turbine relative temperature add emergent hydrophobic, and respectively by the first standpipe outlet pipe that is attached thereto and the first vertical pipe drainage pipe with steam and the hydrophobic vapour condenser that is disposed to.Second standpipe is located at turbine generator below, be used to collect lower low of steam turbine relative temperature add emergent hydrophobic, and by the second standpipe outlet pipe that is attached thereto and the second vertical pipe drainage pipe with steam and the hydrophobic vapour condenser that is disposed to.And first standpipe and second standpipe preferably are provided with water-cooling tube, thereby make that each standpipe heat load during operation is even.
Be example with CPR1000 nuclear power plant steam turbine below, the present invention is specifically described.Then above-mentioned first standpipe and steam turbine No. 6 highly add emergent drain pipes and link to each other with No. 7.Second standpipe and steam turbine No. 1, No. 2, No. 3 link to each other with No. 4 emergent drain pipes of low price.
In a preferred embodiment of the invention, first standpipe further comprises two standpipes that are arranged at steam turbine head below, is respectively No. 1 standpipe 1 and No. 2 standpipes 2 in the present embodiment.In the present embodiment, second standpipe is No. 5 standpipes 5 being located at the generator below.
See also Fig. 1, be No. 1 standpipe structural representation of turbine vapour condenser vertical pipe drainage system preferred embodiment of the present invention.As shown in Figure 1, No. 1 standpipe 1 is provided with No. 1 standpipe outlet pipe 110 and No. 1 vertical pipe drainage pipe 120, is communicated to vapour condenser respectively, thereby with steam and the hydrophobic vapour condenser that is disposed to collected.No. 1 standpipe 1 also link to each other with many pipelines be used to collect hydrophobic.These pipelines comprise: the 6A height of steam turbine adds that emergent drain pipe 102,7A height add emergent drain pipe 101, (moisture separatorreheater, MSR) the low height that adds reheater A pipe 104, separator of housing A pipe 103, separator adds reheater A pipe 105 and ABP recirculation pipe 106 to separator.
In addition, No. 1 standpipe 1 also is connected with the first hydrophobic collector 130.The first hydrophobic collector 130 is connected with following pipeline and receives the hydrophobic of diverse location respectively.These pipelines comprise: 7 take out behind female pipe check valve drain pipe 131,6 takes out behind female pipe check valve drain pipe 132,6 and takes out behind the 6A check valve drain pipe 133,6 and take out behind the 6B check valve drain pipe 134,7 and take out behind the 7A check valve drain pipe 135 and 7 and take out drain pipe 136 behind the 7B check valve.
See also Fig. 2, be No. 2 standpipe structural representations of turbine vapour condenser vertical pipe drainage system preferred embodiment of the present invention.As shown in Figure 2, No. 2 standpipes 2 provided by the invention are provided with No. 2 standpipe outlet pipes 210 and No. 2 vertical pipe drainage pipes 220, are communicated to vapour condenser respectively, thereby with steam and the hydrophobic vapour condenser that is disposed to collected.No. 2 standpipes 2 also link to each other with many pipelines be used to collect hydrophobic.These pipelines comprise: the 6B height of steam turbine adds the low height that adds reheater B pipe 204, separator that emergent drain pipe 202,7B height add emergent drain pipe 201, separator housing B pipe 203, separator and adds reheater B pipe 205 and vaporizer blowdown recycled water return pipe 206.
In addition, No. 2 standpipes 2 also are connected with the second hydrophobic collector 230.The first hydrophobic collector 230 is connected with following pipeline and receives the hydrophobic of diverse location respectively.These pipelines comprise: 3 are evacuated to that 3B is low to be added behind the check valve hydrophobic 231,3 and be evacuated to that 3A is low to be added behind the check valve hydrophobic 232,4 and be evacuated to that 4B is low to be added behind the check valve hydrophobic 233,4 and be evacuated to that 4A is low to be added behind the check valve hydrophobic 234 and 5 and take out before the check valve hydrophobic 235.Wherein, every pipeline can be set to many, preferably is set to 2.
See also Fig. 3, be No. 5 standpipe structural representations of invention turbine vapour condenser vertical pipe drainage system preferred embodiment.As shown in Figure 3, No. 5 standpipes 5 provided by the invention are provided with No. 5 standpipe outlet pipes 510 and No. 5 vertical pipe drainage pipes 520, are communicated to vapour condenser respectively, thereby with steam and the hydrophobic vapour condenser that is disposed to collected.No. 5 standpipes 5 also link to each other with many pipelines be used to collect hydrophobic.These pipelines comprise: the 3A of steam turbine is low add emergent drain pipe 501,3B low add emergent drain pipe 502, gland heater conduit pipe 503,4A low add emergent drain pipe 508,4B low add No. 509,1, emergent drain pipe low add No. 505,2, normal and emergent drain pipe low add No. 506,1, normal and emergent drain pipe with No. 2 low plus hydrophobic heater conduit pipes 504, coagulate pump recirculation pipe 509.
In addition, No. 5 standpipes 5 also are connected with VENT collector 530.VENT collector 530 is connected with following pipeline and receives the hydrophobic of diverse location respectively.These pipelines comprise: low add 4B operation steam discharge tracheae 531, lowly add 4A operation steam discharge tracheae 532, lowly add 3B operation steam discharge tracheae 533, lowly add 3A operation steam discharge tracheae 534, oxygen-eliminating device operation steam discharge tracheae 535 and coagulate pump exhaust steam pipe 536.Wherein, coagulate pump exhaust steam pipe 536 and can be set to many, in the present embodiment, be set to 3.
Vertical pipe drainage system for turbine condenser of the present invention, by the said structure setting, changed the hydrophobic design proposal of original turbine condenser large water tank, adopt new vertical pipe drainage design, the various hydrophobic of routine made a distinction according to energy grade, the drain water piping of so different energy levels can be safer in operation, and is more steady.In addition, the present invention makes finally to enter the hydrophobic more even of vapour condenser also by the absorption of standpipe to heat load, to the thermal shock minimum of vapour condenser apparatus body, has improved the Security of nuclear power plant's operation, effectively protects the drain water piping of vapour condenser and full factory.
The present invention is described according to specific embodiment, but it will be understood by those skilled in the art that when not breaking away from the scope of the invention, can carry out various variations and be equal to replacement.In addition, for adapting to the specific occasion or the material of the technology of the present invention, can carry out many modifications and not break away from its protection domain the present invention.Therefore, the present invention is not limited to specific embodiment disclosed herein, and comprises that all drop into the embodiment of claim protection domain.
Claims (11)
1. a vertical pipe drainage system for turbine condenser is characterized in that, comprising:
First standpipe is located at steam turbine head below, and the height that is used to collect steam turbine adds emergent hydrophobic, and respectively by the first standpipe outlet pipe that is attached thereto and the first vertical pipe drainage pipe with steam and the hydrophobic vapour condenser that is disposed to;
Second standpipe is located at turbine generator below, be used to collect steam turbine low add emergent hydrophobic, and by the second standpipe outlet pipe that is attached thereto and the second vertical pipe drainage pipe with steam and the hydrophobic vapour condenser that is disposed to.
2. vertical pipe drainage system for turbine condenser according to claim 1 is characterized in that, described first standpipe and described steam turbine No. 6 highly adds emergent drain pipes and links to each other with No. 7.
3. vertical pipe drainage system for turbine condenser according to claim 1 is characterized in that, second standpipe and described steam turbine No. 1, No. 2, No. 3 link to each other with No. 4 emergent drain pipes of low price.
4. vertical pipe drainage system for turbine condenser according to claim 1 is characterized in that, described first standpipe and second standpipe also are provided with water-cooling tube.
5. vertical pipe drainage system for turbine condenser according to claim 2 is characterized in that, described first standpipe comprises No. 1 standpipe and No. 2 standpipes.
6. vertical pipe drainage system for turbine condenser according to claim 5, it is characterized in that described No. 1 standpipe links to each other with following pipeline: the 6A height of steam turbine adds the low height that adds reheater A pipe, separator that emergent drain pipe, 7A height add emergent drain pipe, separator housing A pipe, separator and adds reheater A pipe and ABP recirculation pipe.
7. vertical pipe drainage system for turbine condenser according to claim 5, it is characterized in that described No. 2 standpipes link to each other with following pipeline: the 6B height of steam turbine adds the low height that adds reheater B pipe, separator that emergent drain pipe, 7B height add emergent drain pipe, separator housing B pipe, separator and adds reheater B pipe and vaporizer blowdown recycled water return pipe.
8. vertical pipe drainage system for turbine condenser according to claim 3, it is characterized in that described second standpipe links to each other with following pipeline: the 3A of steam turbine is low add emergent drain pipe, 3B low add emergent drain pipe, gland heater conduit pipe, 4A low add emergent drain pipe, 4B low add emergent drain pipe, No. 1 low add normal and emergent drain pipe, No. 2 low add normal and emergent drain pipe, No. 1 with No. 2 low plus hydrophobic heater conduit pipes, coagulate the pump recirculation pipe.
9. vertical pipe drainage system for turbine condenser according to claim 6, it is characterized in that, described No. 1 standpipe also is connected with the first hydrophobic collector, the described first hydrophobic collector be used to collect 7 take out hydrophobic behind female pipe check valve, 6 take out hydrophobic behind female pipe check valve, 6 take out hydrophobic behind the 6A check valve, 6 take out hydrophobic behind the 6B check valve, 7 take out hydrophobic behind the 7A check valve, 7 take out behind the 7B check valve hydrophobic.
10. vertical pipe drainage system for turbine condenser according to claim 7, it is characterized in that, described No. 2 standpipes also are connected with the second hydrophobic collector, the described second hydrophobic collector be used to collect 3 be evacuated to 3B low add hydrophobic behind the check valve, 3 be evacuated to 3A low add hydrophobic behind the check valve, 4 be evacuated to 4B low add hydrophobic behind the check valve, 4 be evacuated to 4A low add hydrophobic behind the check valve, 5 take out before the check valve hydrophobic.
11. vertical pipe drainage system for turbine condenser according to claim 8, it is characterized in that, described second standpipe also is connected with the VENT collector, and described VENT collector is used for collecting and lowly adds 4B operation steam discharge gas, lowly adds 4A operation steam discharge gas, lowly adds 3B operation steam discharge gas, lowly adds 3A operation steam discharge gas, oxygen-eliminating device operation steam discharge gas, coagulates the pump steam discharge.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101611324A CN101845973B (en) | 2010-04-30 | 2010-04-30 | Vertical pipe drainage system for turbine condenser |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101611324A CN101845973B (en) | 2010-04-30 | 2010-04-30 | Vertical pipe drainage system for turbine condenser |
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| CN101845973A true CN101845973A (en) | 2010-09-29 |
| CN101845973B CN101845973B (en) | 2012-08-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110947708A (en) * | 2019-11-21 | 2020-04-03 | 广西电网有限责任公司电力科学研究院 | High-temperature high-pressure pipeline flushing system and method for thermal power generating unit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1164609A (en) * | 1997-01-31 | 1997-11-12 | 许建壮 | Composite condensate heating power system for turbogenerator |
| JP2002206409A (en) * | 2001-01-11 | 2002-07-26 | Mitsubishi Heavy Ind Ltd | Piping facility for plant, and power plane provided with the piping facility for plant |
| CN200993028Y (en) * | 2006-12-30 | 2007-12-19 | 潘健 | Steam turbine low-pressure shaft seal water-sealing system |
| CN101560967A (en) * | 2009-05-31 | 2009-10-21 | 中国电力工程顾问集团西南电力设计院 | Drainage system of feed pump turbine arranged at low position |
-
2010
- 2010-04-30 CN CN2010101611324A patent/CN101845973B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1164609A (en) * | 1997-01-31 | 1997-11-12 | 许建壮 | Composite condensate heating power system for turbogenerator |
| JP2002206409A (en) * | 2001-01-11 | 2002-07-26 | Mitsubishi Heavy Ind Ltd | Piping facility for plant, and power plane provided with the piping facility for plant |
| CN200993028Y (en) * | 2006-12-30 | 2007-12-19 | 潘健 | Steam turbine low-pressure shaft seal water-sealing system |
| CN101560967A (en) * | 2009-05-31 | 2009-10-21 | 中国电力工程顾问集团西南电力设计院 | Drainage system of feed pump turbine arranged at low position |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110947708A (en) * | 2019-11-21 | 2020-04-03 | 广西电网有限责任公司电力科学研究院 | High-temperature high-pressure pipeline flushing system and method for thermal power generating unit |
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| CN101845973B (en) | 2012-08-15 |
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Address after: 518023 No. 69 Shennan Middle Road, Shenzhen, Guangdong, Futian District Co-patentee after: CHINA GENERAL NUCLEAR POWER Corp. Patentee after: CHINA NUCLEAR POWER ENGINEERING Co.,Ltd. Address before: 518023 No. 69 Shennan Middle Road, Shenzhen, Guangdong, Futian District Co-patentee before: CHINA GUANGDONG NUCLEAR POWER GROUP Co.,Ltd. Patentee before: CHINA NUCLEAR POWER ENGINEERING Co.,Ltd. |
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