首页> 外国专利> Flow steam generator, horizontal type CONSTRUCTION AND OPERATION METHOD flow steam generator

Flow steam generator, horizontal type CONSTRUCTION AND OPERATION METHOD flow steam generator

机译:卧式流动蒸汽发生器构造和操作方法流动蒸汽发生器

摘要

1.u043fu0440u00a0u043cu043eu0442u043eu0447u043du044bu0439 steam generator (1), in which u043fu0440u043eu0442u0435u043au0430u0435u043cu043eu043c approximately in horizontal direction (x) u0442u043eu043fu043eu0447u043du044bu043c gas channel (6) is located u0438u0441u043fu0430u0440u0438u0442u0435 flue gas u043bu044cu043du0430u00a0 u043fu0440u00a0u043cu043eu0442u043eu0447u043du0430u00a0 heating surface (8)u043au043eu0442u043eu0440u0430u00a0 covers many parallel included u0434u043bu00a0 u043fu0440u043eu0445u043eu0436u0434u0435u043du0438u00a0 fluid environment (w) u043fu0430u0440u043eu0433u0435u043du0435u0440u0430u0442u043eu0440u043du044bu0445 pipes (12) and u043au043eu0442u043eu0440u0430u00a0 contains u043fu0440u043eu0442u0435u043au0430u0435u043cu044bu0439 (w) in water environment u043fu0440u043eu0442u0438u0432u043eu0442u043eu043au0435 to the channel (6) of flue gas segment (26) heating surface and next, is on the side of flowing environment and on the side of flue gas in the field (26) the heating surface segment (28) heating surface.the exit (16) which on the side of flowing environment when considered in the direction (x) of flue gas u043fu043eu0437u0438u0446u0438u043eu043du0438u0440u043eu0432u0430u043d so that temperature is a couple u0443u0441u0442u0430u043d in the case of exploitation of u043eu0432u0438u0432u0448u0430u00a0u0441u00a0 u043fu0440u00a0u043cu043eu0442u043eu0447u043du043eu0439 vaporizer outlet surface (8) of the heating u043eu0442u043au043bu043eu043du00a0u0435u0442u0441u00a0 at less than the specified maximum deviation, the bo 70u0441 march much greater, the temperature of flue gasthe dominant in the case of operation in the opening (16) of the heating surface.;2. u043fu0440u00a0u043cu043eu0442u043eu0447u043du044bu0439 steam generator (1) for 1, in which many u043fu0430u0440u043eu0433u0435u043du0435u0440u0430u0442u043eu0440u043du044bu0445 pipes (12) contains respectively are included for each other u0447u0435u0440u0435u0434u0443u044eu0449u0438u0445u0441u00a0 u043eu0442u0440u0435u0437u043a s (20) lifting and pieces (22) u043eu043fu0443u0441u043au043du044bu0445 pipes.;3. u043fu0440u00a0u043cu043eu0442u043eu0447u043du044bu0439 steam generator (1) for 1, in which a door (13) on the side of flowing environment u043fu0440u00a0u043cu043eu0442u043eu0447u043du043eu0439 vaporizer heating surface (8) is located so close to the entrance to the art u043eu0440u043eu043du0435 flue gas vaporizer u043fu0440u00a0u043cu043eu0442u043eu0447u043du043eu0439 heating surface (8), which in the case of the exploitation of u043fu0440u043eu0442u0435u043au0430u044eu0449u0430u00a0 through u043fu0430u0440u043eu0433u0435u043du0435u0440u0430u0442u043eu0440u043du044bu0435 pipes (12) u0442u0435u043au0443u0447u0430u00a0 wednesday (w) name no flow rate greater than u0437u0430u0434u0430u043du043du0430u00a0 u043cu0438u043du0438u043cu0430u043bu044cu043du0430u00a0 speed.;4. u043fu0440u00a0u043cu043eu0442u043eu0447u043du044bu0439 steam generator (1), paragraph 2, in which the door (13) on the side of flowing environment u043fu0440u00a0u043cu043eu0442u043eu0447u043du043eu0439 vaporizer heating surface (8) is located so close to the entrance to the art u043eu0440u043eu043du0435 flue gas vaporizer u043fu0440u00a0u043cu043eu0442u043eu0447u043du043eu0439 heating surface (8), which in the case of the exploitation of u043fu0440u043eu0442u0435u043au0430u044eu0449u0430u00a0 through u043fu0430u0440u043eu0433u0435u043du0435u0440u0430u0442u043eu0440u043du044bu0435 pipes (12) u0442u0435u043au0443u0447u0430u00a0 wednesday (w) name no flow rate greater than u0437u0430u0434u0430u043du043du0430u00a0 u043cu0438u043du0438u043cu0430u043bu044cu043du0430u00a0 speed.;5. u043fu0440u00a0u043cu043eu0442u043eu0447u043du044bu0439 steam generator (1) for 1, in which the next segment (28) heating surface is included in the u043fu0440u043eu0442u0438u0432u043eu0442u043eu043au0435 to the direction (x) of flue gas.;6. u043fu0440u00a0u043cu043eu0442u043eu0447u043du044bu0439 steam generator (1), paragraph 2, in which the next segment (28) heating surface is included in the u043fu0440u043eu0442u0438u0432u043eu0442u043eu043au0435 to the direction (x) of flue gas.;7. u043fu0440u00a0u043cu043eu0442u043eu0447u043du044bu0439 steam generator (1) of article 3, in which the next segment (28) heating surface is included in the u043fu0440u043eu0442u0438u0432u043eu0442u043eu043au0435 to the direction (x) of flue gas.;8. u043fu0440u00a0u043cu043eu0442u043eu0447u043du044bu0439 steam generator (1), paragraph 4, in which the next segment (28) heating surface is included in the u043fu0440u043eu0442u0438u0432u043eu0442u043eu043au0435 to the direction (x) of flue gas.;9. u043fu0440u00a0u043cu043eu0442u043eu0447u043du044bu0439 steam generator (1) for 1, in which the next segment (28) heating surface is included in the u043fu0440u00a0u043cu043eu0442u043eu043au0435 to the direction (x) of flue gas.;10. u043fu0440u00a0u043cu043eu0442u043eu0447u043du044bu0439 steam generator (1), paragraph 2, in which the next segment (28) heating surface is included in the u043fu0440u00a0u043cu043eu0442u043eu043au0435 to the direction (x) of flue gas.;11. u043fu0440u00a0u043cu043eu0442u043eu0447u043du044bu0439 steam generator (1) of article 3, in which the next segment (28) heating surface is included in the u043fu0440u00a0u043cu043eu0442u043eu043au0435 to the direction (x) of flue gas.;12. u043fu0440u00a0u043cu043eu0442u043eu0447u043du044bu0439 steam generator (1), paragraph 4, in which the next segment (28) heating surface is included in the u043fu0440u00a0u043cu043eu0442u043eu043au0435 to the direction (x) of flue gas.;13. u043fu0440u00a0u043cu043eu0442u043eu0447u043du044bu0439 steam generator (1) for any of the u043fu043f.1 - 12, to which the party included u0433u0430u0437u043eu0432u0430u00a0 flue gas turbine.;14.method of operating u043fu0440u00a0u043cu043eu0442u043eu0447u043du043eu0433u043e u043fu0430u0440u043eu0433u0435u043du0435u0440u0430u0442u043eu0440u0430 (1), with u043fu0440u043eu0442u0435u043au0430u0435u043cu044bu043c approximately in the horizontal direction (x) u0442u043eu043fu043eu0447u043du044bu043c gas channel (6) of flue gas with u0438u0441u043fu0430u0440 u0438u0442u0435u043bu044cu043du043eu0439 u043fu0440u00a0u043cu043eu0442u043eu0447u043du043eu0439 surface (8) of the heating u043au043eu0442u043eu0440u0430u00a0 includes multiple parallel included u0434u043bu00a0 u043fu0440u043eu0445u043eu0436u0434u0435u043du0438u00a0 fluid environment (w) u043fu0430u0440u043eu0433u0435u043du0435u0440u0430u0442u043eu0440u043du044bu0445 pipes (12).with the u0442u0435u043au0443u0447u0443u044e wednesday (w) u043eu0442u0432u043eu0434u00a0u0442 of vaporizer u043fu0440u00a0u043cu043eu0442u043eu0447u043du043eu0439 heating surface (8) in the direction (x) of flue gas in the place in which the domination u044eu0449u0430u00a0 in case of operation temperature of flue gas u043eu0442u043au043bu043eu043du00a0u0435u0442u0441u00a0 at less than the specified maximum deviation, the more 70u0441,in the case of exploitation of u0443u0441u0442u0430u043du043eu0432u0438u0432u0448u0435u0439u0441u00a0 u043fu0440u00a0u043cu043eu0442u043eu0447u043du043eu0439 vaporizer outlet surface (8) of heating temperature of a couple.;15. a way to question 14, in which u0442u0435u043au0443u0447u0443u044e wednesday (w) immediately prior to its withdrawal from the vaporizer u043fu0440u00a0u043cu043eu0442u043eu0447u043du043eu0439 surface (8) of the heating u043du0430u043fu0440u0430u0432u043bu00a0u044eu0442 in u043fu0440u043eu0442u0438u0432u043eu0442u043eu043au0435 to u0442u043eu043fu043eu0447u043du043eu043c with gas.;16. a way to question 14, in which u0442u0435u043au0443u0447u0443u044e wednesday (w) during or immediately after the u043fu0430u0440u043eu0433u0435u043du0435u0440u0430u0442u043eu0440u043du044bu0435 tubes (12) are so strong u043du0430u0433u0440u0435u0432u0443 that she at first m frame (22) u043eu043fu0443u0441u043au043du043eu0439 pipes of the u043fu0430u0440u043eu0433u0435u043du0435u0440u0430u0442u043eu0440u043du043eu0439 pipe (12) has a flow rate more than u0437u0430u0434u0430u043du043du0430u00a0 u043cu0438u043du0438u043cu0430u043bu044cu043du0430u00a0 speed.;17. method for p.15, which u0442u0435u043au0443u0447u0443u044e wednesday (w) during or immediately after the u043fu0430u0440u043eu0433u0435u043du0435u0440u0430u0442u043eu0440u043du044bu0435 tubes (12) are so strong u043du0430u0433u0440u0435u0432u0443 that she at first m frame (22) u043eu043fu0443u0441u043au043du043eu0439 pipes of the u043fu0430u0440u043eu0433u0435u043du0435u0440u0430u0442u043eu0440u043du043eu0439 pipe (12) has a flow rate more than u0437u0430u0434u0430u043du043du0430u00a0 u043cu0438u043du0438u043cu0430u043bu044cu043du0430u00a0 speed.;18. way to p.17, which at a minimum speed, set speed, the necessary u0434u043bu00a0 capture emerging in the first frame (22) u043eu043fu0443u0441u043au043du043eu0439 the pipes of the pair.;19. way on any of the u043fu043f.14 - 18, which u0442u0435u043au0443u0447u0443u044e wednesday (w) after its entrance in the u0438u0441u043fu0430u0440u0438u0442u0435u043bu044cu043du0443u044e u043fu0440u00a0u043cu043eu0442u043eu0447u043du0443u044e surface (8) of the heating u043du0430u043fu0440u0430u0432u043bu00a0u044eu0442 u043fu0440u043eu0442u0438u0432u043eu0442u043eu0447u043du043e u0442u043eu043fu043eu0447u043du043eu043cu0443 gas.;20. way on any of the u043fu043f.14 - 18, which u0442u0435u043au0443u0447u0443u044e wednesday (w) after its entrance in the u0438u0441u043fu0430u0440u0438u0442u0435u043bu044cu043du0443u044e u043fu0440u00a0u043cu043eu0442u043eu0447u043du0443u044e surface (8) of the heating u043du0430u043fu0440u0430u0432u043bu00a0u044eu0442 u043fu0440u00a0u043cu043eu0442u043eu0447u043du043e u0442u043eu043fu043eu0447u043du043eu043cu0443 gas.
机译:1. u043f u0440 u00a0 u043c u043e u0442 u043e u0447 u043d u044b u0439蒸汽发生器(1),其中 u043f u0440 u043e u0442 u0435 u0435 u043a u0430 u0435 u043c u043e u043c大约在水平方向(x) u0442 u043e u043f u043e u0447 u043d u044b u043c气体通道(6)位于 u0438 u0441 u043f u0430 u0440 u0438 u0442 u0435烟气 u043b u044c u043d u0430 u00a0 u043f u0440 u00a0 u043c u043e u0442 u043e u0447 u043d u0430 u00a0加热表面(8) u043a u043e u0442 u043e u0440 u0430 u00a0涵盖了许多并行的 u0434 u043b u00a0 u043f u0440 u043e u0445 u043e u0436 u0434 u0435 u043d u043d u0438 u00a0流体环境(w) u043f u0430 u0440 u043e u0433 u0435 u043d u0435 u0440 u0430 u0442 u043e u0440 u043d u044b u0445管道(12)和 u043a u043e u0442 u043e u0440 u0430 u00a0包含 u043f u0440 u043e u0442 u0435 u043a u0430 u0435 u043c u044b u0439(w)在水道 u043f u0440 u043e u0442 u0438 u0432 u043e u0442 u043e u043a u0435至烟道(6)气体段t(26)受热面,其次是在流动环境侧,在场(26)的烟气侧是受热面段(28)受热面,在流动侧的出口(16)在烟气方向(x)上考虑的环境 u043f u043e u0437 u0438 u0446 u0438 u043e u043d u0438 u0440 u043e u0432 u0430 u043d以使温度为几对 u0443 u0441 u0442 u0430 u043d(如果利用 u043e u0432 u0438 u0432 u0448 u0430 u00a0 u0441 u00a0 u043f u0440 u00a0 u043c u043c u043e u043e u0442 u043e u0447 u043d u043d u0439蒸发器的蒸发器出口表面(8)小于指定的最大偏差时,bo 70 u0441前进得更大,烟气温度在操作时在加热面的开口(16)中占主导地位; 2。 u043f u0440 u00a0 u043c u043e u0442 u043e u0447 u043d u044b u0439蒸汽发生器(1)用于1,其中许多 u043f u0430 u0440 u043e u0433 u0435 u043d u043d u0435 u0440 u0430 u0442 u043e u0440 u043d u044b u0445分别包含的管道(12)相互包含 u0447 u0435 u0440 u0435 u0434 u0443 u044e u0449 u0438 u0445 u0441 u00a0 u043e u0442 u0440 u0435 u0437 u043a s(20)吊装件(22) u043e u043f u0443 u0441 u043a u043d u044b u0445。 u043f u0440 u00a0 u043c u043e u0442 u043e u0447 u043d u044b u0439蒸汽发生器(1),用于1,其中在流动环境一侧的门(13) u043f u0440 u00a0 u043c u043e u0442 u043e u0447 u043d u043e u0439蒸发器加热表面(8)的位置非常靠近艺术作品的入口 u043e u0440 u043e u043d u0435烟气蒸发器 u043f u0440 u00a0 u043c u043e u0442 u043e u0447 u043d u043e u0439受热面(8),在利用 u043f u0440 u043e u0442 u0435 u043a u0430 u044e u0449 u0430 u00a0至 u043f u0430 u0440 u043e u0433 u0435 u043d u0435 u0440 u0430 u0442 u043e u0440 u043d u044b u0435管道(12) u0442 u0435 u043a u0443 u0447 u0430 u00a0周三(w)名称流量不大于 u0437 u0430 u0434 u0430 u043d u043d u0430 u00a0 u043c u0438 u043d u0438 u043c u04c u0430 u043b u044c u043d u0430 u04c u00a0速度; 4。 u043f u0440 u00a0 u043c u043e u0442 u043e u0447 u043d u044b u0439蒸汽发生器(1),第2段,其中门(13)位于流动环境一侧 u043f u0440 u00a0 u043c u043e u0442 u043e u0447 u043d u043e u0439蒸发器加热表面(8)的位置非常靠近艺术作品的入口 u043e u0440 u043e u043d u0435烟气蒸发器 u043f u0440 u00a0 u043c u043e u0442 u043e u0447 u043d u043e u0439加热表面(8),在使用 u043f u0440 u043e u0442 u0435 u043a u0430 u044e u0449 u0430 u00a0至 u043f u0430 u0440 u043e u0433 u0435 u043d u043d u0435 u0440 u0430 u0442 u043e u0440 u043d u044b u0435管道(12) u0442 u0435 u043a u0443 u0447 u0430 u00a0周三(w)名称流量不大于 u0437 u0430 u0434 u0430 u043d u043d u0430 u00a0 u043c u0438 u043d u0438 u043c u043c u0430 u043b u044c u043d u0430 u00a0速度; 5。 u043f u0440 u00a0 u043c u043e u0442 u043e u0447 u043d u044b u0439蒸汽发生器(1),用于1,其中下一个段(28)加热面包含在 u043f u0440 u043e u0442 u0438 u0432 u043e u0442 u043e u043a u0435指向烟气的(x)方向; 6。 u043f u0440 u00a0 u043c u043e u0442 u043e u0447 u043d u044b u0439蒸汽发生器(1),第2段,其中下一段(28)受热面包含在 u043f u0440 u043e u0442 u0438 u0432 u043e u0442 u043e u043a u0435朝向烟气的(x)方向; 7。 u043f u0440 u00a0 u043c u043e u0442 u043e u0447 u043d u044b u0439第3条的蒸汽发生器(1),其中下一个分段(28)加热表面包含在 u043f u0440 u043e u0442 u0438 u0432 u043e u0442 u043e u043a u0435朝向烟气的(x)方向; 8。 u043f u0440 u00a0 u043c u043e u0442 u043e u0447 u043d u044b u0439蒸汽发生器(1),第4段,其中下一段(28)受热面包含在烟气方向(x)的 u043f u0440 u043e u0442 u0438 u0432 u043e u0442 u043e u043a u0435中; 9。 u043f u0440 u00a0 u043c u043e u0442 u043e u0447 u043d u044b u0439用于1的蒸汽发生器(1),其中下一个段(28)加热表面包含在 u043f u0440 u00a0中 u043c u043e u0442 u043e u043a u0435至烟气的方向(x); 10。 u043f u0440 u00a0 u043c u043e u0442 u043e u0447 u043d u044b u0439蒸汽发生器(1),第2段,其中下一段(28)受热面包含在 u043f u0440 u00a0 u043c u043e u0442 u043e u043a u0435到烟气的方向(x); 11。 u043f u0440 u00a0 u043c u043e u0442 u043e u0447 u043d u044b u0439第3条的蒸汽发生器(1),其中下一个分段(28)加热表面包含在 u043f u0440 u00a0 u043c u043e u0442 u043e u043a u0435到烟气的方向(x); 12。 u043f u0440 u00a0 u043c u043e u0442 u043e u0447 u043d u044b u0439蒸汽发生器(1),第4段,其中下一段(28)受热面包含在 u043f u0440 u00a0 u043c u043e u0442 u043e u043a u0435到烟气的方向(x); 13。 u043f u043f.1-12中任何一方的 u043f u0440 u00a0 u043c u043e u0442 u043e u0447 u043d u044b u0439蒸汽发生器(1),其中包括 u0433 u0430 u0437 u043e u0432 u0430 u00a0烟气涡轮机; 14。运行方法 u043f u0440 u00a0 u043c u043e u0442 u043e u0447 u043d u043e u0433 u043e u043f u0430 u0440 u043e u0433 u0435 u043d u0435 u0440 u0430 u0442 u043e u0440 u0430(1),带有 u043f u0440 u043e u0442 u0435 u043a u0430 u0435 u043c u044b u043c大约在带有 u0438 u0441 u043f u0430 u0440 u0438 u0442 u043f u043f u04330 u0440 u0438 u0441 u043f u043f u043b 的烟气水平方向(x) u0442 u043e u043f u043e u0447 u043d u044b u043c u044c u043d u043e u0439 u043f u0440 u00a0 u043c u043e u0442 u043e u0447 u043d u043e u0439加热表面(8) u043a u043e u0442 u043e u0440 u0430 u00a0包括多个并行包含的 u0434 u043b u00a0 u043f u0440 u043e u0445 u043e u0436 u0434 u0435 u043d u0438 u00a0流体环境(w) u043f u0430 u0440 u0440 u043e u0433 u0435 u043 d u0435 u0440 u0430 u0442 u043e u0440 u043d u044b u0445管道(12)。使用 u0442 u0435 u043a u0443 u0447 u0443 u044e周三(w) u043e u0442 u0432 u043e u0434 u00a0 u0442蒸发器 u043f u0440 u00a0 u043c u043e u0442 u043e u0447 u043d u043e u0439加热表面(8)沿烟气在(x)方向如果烟气的工作温度为 u044e u0449 u0430 u00a0,且小于指定的最大偏差,则如果使用 u0443 u0441 u0442 u0430 u043d u043e u043e u0432 u0438 u0432 u0448 u0435 u0435 u0439 u0441 u00a0 u043f u04340 u0434 u00a0 u043c u043e一对加热温度为15的汽化器出口表面(8); 15。问题14的方式,其中 u0442 u0435 u043a u0443 u0447 u0443 u044e周三(w)紧接从蒸发器 u043f u0440 u00a0 u043c u043e u0442 u043e u0447 u043d u043e u0439加热的表面(8) u043d u0430 u043f u0440 u0430 u0432 u043b u00a0 u044e u0442在 u043f u0440 u043e u044e u0442 u0438 u0432 u043e u0442 u043e u043a u0435至 u0442 u043e u043f u043e u0447 u043d u043e u043c带有气体。; 16。问题14的方式,其中 u0442 u0435 u043a u0443 u0447 u0443 u044e周三(w)在 u043f u0430 u0440 u043e u0433 u0435 u043d u0435 u0440 u0430 u0442 u043e u0440 u043d u044b u0435管如此坚固 u043d u0430 u0433 u0440 u0435 u0432 u0443以至于她在第m帧(22) u043e u043f u0443 u043f u0430 u0430 u0440 u043e u0433 u0435 u043d u043d u0435 u0440 u0430 u0442 u043e u0440 u043d u043d u043e u0439的u0441 u043a u043d u043e u0439管道(12)有一个管道流速大于 u0437 u0430 u0434 u0430 u043d u043d u0430 u00a0 u043c u0438 u043d u0438 u043c u0430 u043b u044c u043d u043d u0430 u00a0速度。; 17。第15页的方法,其中 u0442 u0435 u043a u0443 u0447 u0443 u044e周三(w)在 u043f u0430 u0440 u043e u0433 u0435 u043d u043d u0435 u0440 u0430 u0442 u043e u0440 u043d u044b u0435管(12)如此坚固 u043d u0430 u0433 u0440 u0435 u0432 u0443以至于她在第m帧(22) u043e u043f u0443 u0441 u043f u0430 u0440 u043e u0433 u0435 u043d u0435 u0440 u0430 u0442 u043e u0440 u043d u043d u043e u0439的管道中的 u043a u043d u043e u0439管道(12)速度大于 u0437 u0430 u0434 u0430 u043d u043d u0430 u00a0 u043c u0438 u043d u0438 u043c u0430 u043b u044c u043d u0430 u00a0速度。; 18。转到第17页,以最小速度,设定速度,在第一帧中出现必要的 u0434 u043b u00a0捕获(22) u043e u043f u0443 u0441 u043a u043d u043d u043e u0439一对;; 19。 u043f u043f.14-18中的任何一个,其中 u0442 u0435 u043a u0443 u0447 u0443 u044e在进入 u0438 u0441 u043f u0430 u0440 u0438 u0442 u0435 u0435 u043b u044b u044c u043d u0443 u044e u043f u0440 u00a0 u043c u043e u0442 u043e u0447 u043d u0443 u044e加热的表面(8) u043d u0430 u043f u0440 u0430 u0432 u043b u00b0 u044e u044e u043f u0440 u043e u0442 u0438 u0432 u043e u0442 u043e u0447 u043d u043e u0442 u043e u043f u043f u043e u0447 u043d u043e u043e u043c u0443气体。20。在 u043f u043f.14-18中的任何一个路径上,其中 u0442 u0435 u043a u0443 u0447 u0443 u044e在星期三(w)进入 u0438 u0441 u043f u0430 u0440 u0438 u0442 u0435 u043b u044c u043d u0443 u044e u043f u0440 u00a0 u043c u043e u0442 u043e u0447 u043d u0443 u044e加热的表面(8) u043d u0430 u043f u0440 u0430 u0432 u043b u00a0 u044e u0442 u043f u0440 u00a0 u043c u043e u0442 u043e u043e u0447 u043d u043e u0442 u043e u043e u043f u043e u0447 u043d u043e u0443气体。

著录项

相似文献

  • 专利
  • 外文文献
  • 中文文献
获取专利

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号