政哥哥哥哥哥哥
水电站厂房的类型一、地面式:1、河床式厂房:与其它建筑物如挡水坝、泄水建筑物等一起并排建在河床当中,厂房本身也起挡水作用。适用于水头较低、单机容量较大的情况。葛洲坝水利枢纽的厂房、富春江水电站、西津水电站、大化水电站等均为河床式厂房。 另外,闸墩式厂房、泄水式厂房也是河床式厂房的特殊形式。2、坝后式厂房:位于挡水的下游侧,发电用水由通过坝体的压力管道引入厂房。厂房本身不起挡水作用。适用于中高水头单机容量较大的情况。丹江口水电站、攀家口水电站采用了这种形式的厂房。3、溢式厂房:位于溢流坝挑坎下面的混凝土中,水流从厂房顶部流过。适用于河谷狭窄、泄洪量较大、机组台数多、没有合适位置布置厂房的情况。新安江水电站即采用了溢流式厂房。4、挑越式厂房:位于溢流坝的挑坎下面,泄洪时高速水流挑越过厂房顶,落到下游的河床中。适用于在峡谷中建高坝,高水头大流量的情况。乌江渡水电站的厂房采用了这种方式。5、坝内式厂房:将厂房布置在混凝土重力坝或拱坝的内部,压力管道穿过坝体进入厂房。适用于在峡谷中建坝,在坝轴线上不容易布置水电站厂房和溢流坝的情况。江西的犹江和湖南凤滩水电站均采用了坝内式厂房的布置方式。
小七的妈妈
特征:厂房位于拦河坝的下游,紧接坝后,在结构上与大坝用永久缝分开,发电用水由坝内高压管道引入厂房。有时为了解决泄水建筑物布置与厂房建筑物布置之间的矛盾,可将厂房布置成以下型式:⑴溢流式厂房。将厂房顶作为溢洪道,成为坝后溢流式厂房。⑵坝内式厂房。厂房移入溢流坝体空腹内。 厂房位于河床中,成为挡水建筑物的一部分。(二) 按机组主轴的装置方式分:立式机组厂房和卧式机组厂房。
绿桑坊蚕被店
Hydropower station building Hydropower station is generating using water resources, is water, place a complex of machine, electricity. Among them in order to achieve the hydroelectric power, is used to control the flow of buildings called hydropower station buildings. This mainly discuss the layout, hydropower diversion system structure design and hydraulic calculation; Hydropower plant layout design and hub of the structure characteristics. The basic development mode and hydropower decorate a form η by N = 9.81 QH knowable, to power must flow and head, the key is to form a head. Take full advantage of the river's water resources of hydropower station, the first to make, downstream formed certain gap, constitute power head. So for the river water hydropower development, according to the different ways of centralized head into dam type, diversion type and hybrid three basic forms. Pumped-storage power station and the tides of hydropower station is an important type using. The way -- formed head hydropower development mode. A, dam type hydropower station In river canyon place dammed rivers, in front of the dam harmony water, the dam site, form concentrated gap, this development way as the dam type development. In reservoir upstream dam site of the led take, through the workshop in hydropower station turbine generating tail water, after which leads to the river downstream, upstream and downstream water level difference is obtained that the head hydropower. With the centralized head hydropower dam called dam type hydropower station. (a) hydropower dam type characteristic (1) the head hydropower dam type depends on the dam is high. At present the biggest head hydropower dam type does not exceed the correlation between 300m. (2) dam type of hydropower station is larger, the power station quoted flow water use, scale is fully. (because the reservoir formation DAMS, upstream, can be used to adjust flow) in the world at present more than two 000MW installed capacity of large scale hydropower station is mostly dam type hydropower station. Besides dam type the comprehensive utilization of hydropower reservoir with high benefit, but at the same time satisfy the flood control, power generation, and water demand bringing. (3) hydropower dam type, attentions investment. Reason: engineering with large size, caused by the large range of reservoir, migrants flooded. Application: slower, flow channel slope, and a large DAMS built libraries conditions. (2) hydropower dam type of form 1. The riverbed type power station (power in river now any) - general built in the middle ZongPo gentle river channel, to avoid massive river flooded low dam or sluice gate, built. For large and medium-sized: head: -- 25 meters below, small: 8 ~ 10 meters below. -- plant and block dam built on the riverbed side-by-side, common retaining water, reason workshop also have sliding stability problem; - building height depends on the discretion of the head. -- quote large flow, head low. -- mainly includes: block DAMS, xiang-jia-ba dam, workshops, lock, the fishway etc. 2. Type of hydropower station dam at dam toe staion (power) -- when head is bigger, workshop itself can not withstand the water thrust, will plant moved to dam by retaining water after the dam. - general dam type hydropower station built on the upper-middle river. -- is larger, the capacity of the regulation performance. - such as can be built for volumetric, Banks type power station. The three gorges hydropower station -- high-profile dam type hydropower station is, its an installed capacity of 200MW for eighteen. Second, water diversion type power of hydropower station (now) In rivers on the slope steep river build one low dam (or no dam) water, through the man-made YinShuiDao (channel, tunnel, pipeline) river diversion to downstream, and centralized divide pressure pipeline, then after water diversion to turbine to conduct electricity. YinShuiDao concentrated with the power station called water head of hydropower station. Characteristics: (1) head is relative taller, and the biggest head has reached 2,000 meters above. (2) quoted flow small, no reservoir water runoff regulation, lower utilization rate, comprehensive utilization value is poorer. (3) power station capacity is very small, basic no reservoir submerged loss, quantity is lesser, unit cost is low. Type: (1) no pressure water type (free) : YinShuiDao is blunt without pressure (such as channel) (2) there is pressure water type (pressure YinShuiDao blunt) : there is pressure (pressure tunnel) Applicable condition: suitable for river channel slope steep, flow of smaller mountain OuXing inlets. 1. No pressure water type power station Water diversion buildings is without pressure: any open channel (open), blunt free-flow tunnel (how) copy Main buildings: low dam, inlet, settling basin, pont du gard (hole), daily regulation pool, pressure, pressure conduit previous pool, plant, water discharge canals. 2. Have pressure water type power station The building is a pressure diversion tunnel (pressure stress how) Main buildings: low dam, diversion tunnel (pressure), surge chamber pressure conduit, factory, and ash
奇文文1314
, place a complex of machine, electricity. Among them in order to achieve the hydroelectric power, is used to control the flow of buildings called hydropower station buildings. This mainly discuss the layout, hydropower diversion system structure design and hydraulic calculation; Hydropower plant layout design and hub of the structure characteristics. The basic development mode and hydropower decorate a form η by N = 9.81 QH knowable, to power must flow and head, the key is to form a head. Take full advantage of the river's water resources of hydropower station, the first to make, downstream formed certain gap, constitute power head. So for the river water hydropower development, according to the different ways of centralized head into dam type, diversion type and hybrid three basic forms. Pumped-storage power station and the tides of hydropower station is an important type using. The way -- formed head hydropower development mode. A, dam type hydropower station In river canyon place dammed rivers, in front of the dam harmony water, the dam site, form concentrated gap, this development way as the dam type development. In reservoir upstream dam site of the led take, through the workshop in hydropower station turbine generating tail water, after which leads to the river downstream, upstream and downstream water level difference is obtained that the head hydropower. With the centralized head hydropower dam called dam type hydropower station. (a) hydropower dam type characteristic (1) the head hydropower dam type depends on the dam is high. At present the biggest head hydropower dam type does not exceed the correlation between 300m. (2) dam type of hydropower station is larger, the power station quoted flow water use, scale is fully. (because the reservoir formation DAMS, upstream, can be used to adjust flow) in the world at present more than two 000MW installed capacity of large scale hydropower station is mostly dam type hydropower station. Besides dam type the comprehensive utilization of hydropower reservoir with high benefit, but at the same time satisfy the flood control, power generation, and water demand bringing. (3) hydropower dam type, attentions investment. Reason: engineering with large size, caused by the large range of reservoir, migrants flooded. Application: slower, flow channel slope, and a large DAMS built libraries conditions. (2) hydropower dam type of form 1. The riverbed type power station (power in river now any) - general built in the middle ZongPo gentle river channel, to avoid massive river flooded low dam or sluice gate, built. For large and medium-sized: head: -- 25 meters below, small: 8 ~ 10 meters below. -- plant and block dam built on the riverbed side-by-side, common retaining water, reason workshop also have sliding stability problem; - building height depends on the discretion of the head. -- quote large flow, head low. -- mainly includes: block DAMS, xiang-jia-ba dam, workshops, lock, the fishway etc. 2. Type of hydropower station dam at dam toe staion (power) -- when head is bigger, workshop itself can not withstand the water thrust, will plant moved to dam by retaining water after the dam. - general dam type hydropower station built on the upper-middle river. -- is larger, the capacity of the regulation performance. - such as can be built for volumetric, Banks type power station. The three gorges hydropower station -- high-profile dam type hydropower station is, its an installed capacity of 200MW for eighteen. Second, water diversion type power of hydropower station (now) In rivers on the slope steep river build one low dam (or no dam) water, through the man-made YinShuiDao (channel, tunnel, pipeline) river diversion to downstream, and centralized divide pressure pipeline, then after water diversion to turbine to conduct electricity. YinShuiDao concentrated with the power station called water head of hydropower station. Characteristics: (1) head is relative taller, and the biggest head has reached 2,000 meters above. (2) quoted flow small, no reservoir water runoff regulation, lower utilization rate, comprehensive utilization value is poorer. (3) power station capacity is very small, basic no reservoir submerged loss, quantity is lesser, unit cost is low. Type: (1) no pressure water type (free) : YinShuiDao is blunt without pressure (such as channel) (2) there is pressure water type (pressure YinShuiDao blunt) : there is pressure (pressure tunnel) Applicable condition: suitable for river channel slope steep, flow of smaller mountain OuXing inlets. 1. No pressure water type power station Water diversion buildings is without pressure: any open channel (open), blunt free-flow tunnel (how) copy Main buildings: low dam, inlet, settling basin, pont du gard (hole), daily regulation pool, pressure, pressure conduit previous pool, plant, water discharge canals.power .station The building is a pressure diversion tunnel (pressure stress how) Main buildings: low dam, diversion tunnel (pressure), surge chamber pressure conduit, factory, and ash