CN205260249U - 燃气轮机注水泵机组 - Google Patents
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Abstract
本实用新型涉及一种燃气轮机注水泵机组，具有燃气轮机、高压水泵、传动箱、滑油系统以及进气消音系统，还包括排气消音系统和滑油散热器，其中排气消音系统的进气口通过转接段与燃气轮机中动力涡轮排气室侧面排气口连接；滑油散热器做为滑油系统中的主要设备之一，与滑油系统中的滑油管线连接。本实用新型可以有效利用剩余能量如油田的剩余天然气资源，减少放空气量，可降低生产成本，是一种可行的节能设，减小噪音，具有投资高，回报率也高、抗风险能力较高的特点。
Description
技术领域
本实用新型涉及一种注水泵机组制造技术，具体的说是一种燃气轮机注水泵机组。
背景技术
燃气轮机注水泵机组使用领域比较广泛，主要用于石油、化工、水泥等行业。
燃气轮机直拖注水泵装置是国内首屈一指的，采用的是一用一备，避免维修带来的不便。但这套装置也存在一些待解决的问题,如耗能高、燃气发生器检修频繁,现有燃气发生器的翻修周期一般在800h左右，更换一台燃气发生器需要(4～6)h，为确保安全、可靠地运行情况下，延长发生器的工作时间是必须解决的问题。
此外，现有燃机发生器噪声大，而且齿轮箱、注水泵同属高速旋转机械，也具有很大的噪音。根据国家环境保护要求，必须降到有关标准要求以下。
实用新型内容
针对现有技术中气轮机注水泵机组存在耗能高、噪声大以及燃气发生器检修频繁等不足，本实用新型要解决的技术问题是提供一种可有效降低能耗、降低噪音且延长燃气发生器一次翻修寿命的燃气轮机注水泵机组。
为解决上述技术问题，本实用新型采用的技术方案是：
本实用新型燃气轮机注水泵机组，具有燃气轮机、高压水泵、传动箱、滑油系统以及进气消音系统，还包括排气消音系统和滑油散热器，其中排气消音系统的进气口通过转接段与燃气轮机中动力涡轮排气室侧面排气口连接；滑油散热器做为滑油系统中的主要设备之一，与滑油系统中的滑油管线连接。
所述排气消音系统具有消音器，消音器的一端通过垂直过渡段和方圆过渡段连接烟囱，消音器的另一端通过方方过渡段连接至弯头，弯头再经水平方方过渡段以及水平过渡段连接至燃气轮机的排气端。
在水平与垂直位置各设置一个膨胀节，其中水平膨胀节设于方方过渡段和弯头之间，垂直膨胀节设于水平方方过渡段和水平过渡段之间。
所述消音器采用阻性消声器中的插板式消声器，为可膨胀式结构，壳体与框架采用密封焊接形式，内护板采用耐热材料。
所述消音器具有多个消音片，每个消音片为框架结构，框架中间为消音材料，消音片迎气流的一端为半圆形。
水平过渡段采用内保温结构，外部为碳钢，内部采用耐高温材料，中间采用硅酸铝纤维毡保温材料。
第一膨胀节和第二膨胀节均为非金属膨胀节，采用内护板绝热保温的多层复合型结构，外表面通过非金属复合材料进行密封，两侧用钢法兰与其它段的法兰进行连接。
燃气轮机的燃烧室采用环形燃烧室，多个火焰筒均布在后机匣的环形腔道内。
燃气轮机的涡轮部分转子采用钢叶片。
所述滑油散热器具有筒体，筒体的前、后两端分别通过前管板和后管板设有前端管箱及后端管箱，在前管板和后管板之间安装换热管，换热管与前端管箱及后端管箱连通，筒体上方的管接头与滑油系统中滑油进、出管线连接，后端管箱通过侧面管接头接至滑油系统的进、出水管线连接，滑油散热器整体固定在支座上。
本实用新型具有以下有益效果及优点：
1.本实用新型为燃气轮机直拖注水泵，可以有效利用剩余能量如油田的剩余天然气资源，减少放空气量，可降低生产成本，燃气发生器一次翻修寿命用已达到1200h，是一种可行的节能设，减小噪音，符合国家GB12348－90《工业企业厂界噪声标准》的三类标准。
2.应用本实用新型是油田注水驱动方式的改变，是节能降耗的又一新的技术措施，在注水用电量消耗约占40％的情况下，应用此项技术，既可以有效利用油田的剩余天然气，又可以缓解用电量的增长，应用前景十分广阔。
3.本实用新型具有投资高，回报率也高、抗风险能力较高的特点，具有注水泵的高速功能。
附图说明
图1为本实用新型燃气轮机注水泵机组结构示意图；
图2为实用新型中排气消音系统结构示意图；
图3为实用新型中滑油散热器结构示意图。
其中，1为高压水泵，2为滑油散热器，201为支座，202为前端管，203为前管板，204为筒体，205为滑油系统中的滑油进、出管线管接头，206为换热管，207为后管板，208为后端管箱，209为滑油系统中的进、出水管线管接头，3为传动箱，4为排气消音系统，401为烟囱，402为方圆过渡段，403为垂直过渡段，404为旁通烟囱支架，405为消音器，406为方方过渡段，407A为水平非金属膨胀节，407B为垂直非金属膨胀节，408为弯头，409为水平方方过渡段，410为支承，411为水平过渡段，5为燃气轮机，6为进气消音系统。
具体实施方式
下面结合说明书附图对本发明作进一步阐述。
如图1所示，本实用新型燃气轮机注水泵机组，具有高压水泵1、传动箱3、滑油系统、燃气轮机5以及进气消音系统6，还包括排气消音系统4和滑油散热器2，其中排气消音系统4的进气口通过转接段与燃气轮机中动力涡轮排气室侧面排气口连接；滑油散热器2与滑油系统的管线连接。
以WP6G型燃气轮机为例，WP6G燃气轮机是一种适用于天然气产生动力的装置，可以用于油田直接拖动注水泵或发电技术，机组运行稳定，采用的是一用一备，避免维修带来的不便。但该型燃机发生器燃检修频，噪声大，而且齿轮箱、注水泵同属高速旋转机械，也具有很大的噪音。根据国家环境保护要求，必须降到有关标准要求以下，因此本实用新型改装了排气消音系统。由于燃气轮机成套机组排出的高温度、高速气体，是低频噪声。将原来砖砌的排气烟囱改为钢制的排气烟囱。同时，设有阻性排气消音器，对降低噪音起到控制作用。
如图2所示，所述排气消音系统具有消音器405，其一端通过垂直过渡段403和方圆过渡段402连接烟囱401，另一端通过方方过渡段406连接至弯头408，弯头408再经水平方方过渡段409以及水平过渡段411连接至燃气轮机的排气端。(删掉部分移后)
所述排气消音系统具有消音器405，消音器405的一端通过垂直过渡段和方圆过渡段连接烟囱403和方圆过渡段402连接烟囱401，消音器405的另一端通过方方过渡段406连接至弯头408，弯头再经水平方方过渡段409以及水平过渡段411连接至燃气轮机的排气端。
本实施例中，消音器405两端分别与方方过渡段406和垂直过渡段403连接。它是用来降低烟气流动时产生的噪声，达到排放要求。采用阻性消声器中的插板式消声器，壳体与框架采用密封焊接形式连接，内护板采用耐热材料，设计成可膨胀式结构。由螺栓按分布情况焊接在外护板内，由压板把保温层和内护板连接起来。保温材料为岩棉板，共有四个消音片，每个消音片由耐热合金钢焊接成框架，中间的是硅酸铝纤维毡，两边贴有穿孔板，迎气流的一端做成半圆形。此件是悬吊结构件。
为保证有足够的热膨胀量，本实用新型在水平与垂直位置各设置一个膨胀节，其中水平非金属膨胀节407A设于方方过渡段406和弯头408之间，垂直非金属膨胀节407B设于水平方方过渡段409和水平过渡段411之间。水平非金属膨胀节407A和垂直非金属膨胀节407B均采用内护板绝热保温的多层复合型结构，外表面用非金属复合材料进行密封，两侧用钢法兰与其它段的法兰进行连接。
在水平过渡段411，把现有的过渡段改造与非金属膨胀节相连，采用内保温形式，外部采用碳钢，内部采用耐高温材料，中间采用硅酸铝纤维毡保温材料。
方方过渡段406通过水平非金属膨胀节407A与弯头408进口连接，采用内保温结构，外护板与框架采用密封焊接，外护板采用碳钢材料，内护板采用的耐热材料，设计成可膨胀式结构，由螺栓按分布情况焊接在外护板内，由压板把保温层和内护板连接起来。保温材料为硅酸铝纤维毡，保温层搭接缝应错开。
弯头408通过水平方方过渡段409与垂直膨胀节407B连接，主要是起到导流作用，同时为联合循环便于更换三通挡板阀做准备。弯头采用内保温结构，外护板与框架采用密封焊接，同时有加强筋板，外护板采用碳钢材料，内护板采用耐热材料，设计成可膨胀式结构，由螺栓按分布情况焊接在外护板内，由压板把保温层和内护板连接起来。保温材料为硅酸铝纤维毡，保温层搭接缝应错开。
弯头408底部设有两个支承，一个为滑动支承，以保证其在热状态下自由膨胀，另一个为固定支承。
垂直过渡段403两端分别与消音器405和方圆过段度段402连接。与消音器405连接处采用密封焊接形式，内护板采用耐热材料，设计成可膨胀式结构。由螺栓按分布情况焊接在外护板内，由压板把保温层和内护板连接起来。保温材料为岩棉板，此件是支撑结构件。
方圆过渡段402两端分别与垂直过渡段403和烟囱401连接。与垂直过渡段403连接处采用密封焊接形式，结构采用外加强，内保温形式，内护板采用耐热材料，设计成可膨胀式结构。由螺栓按分布情况焊接在外护板内，由压板把保温层和内护板连接起来。保温材料为岩棉板。
烟囱401与方圆过渡段402连接直接排入大气。结构采用外加强，内保温结构，分段制造，内护板采用高温耐热材料，设计成可膨胀式结构，保温材料为岩棉。
燃气轮机5的燃烧室将天然气和压气机出口的高压空气混合燃烧，使空气获得巨大热能的部件，本实用新型采用环形燃烧室，多个(本实施例为10个)火焰筒均布在后机匣的环形腔道内；火焰筒由椎体、涡流器、燃烧筒、燃气导管及安装边等焊接成的涡流器上有五个扭转角度的涡流片，十个联焰管连接十个火焰筒。有四个联焰管是三通的，接有起动点火器。各段燃烧筒都采用了气膜冷却，以保证能承受较高的燃气温度。
燃气轮机5的涡轮将燃气的热能转变为带动压气机转子和燃气发生器附件的动能，它由双轮盘的转子、涡轮叶片和两级导向器组成。本实用新型中，部分转子的铝叶片改进为钢叶片，增加叶片的强度、抗磨性。
如图3所，滑油散热器2具有筒体204，筒体204的前、后两端分别通过前管板203和后管板207设有前端管箱202及后端管箱208，在前管板203和后管板207之间安装换热管206，换热管206与前端管箱202及后端管箱208连通，筒体上方的一对管接头为滑油系统中的滑油进、出管线管接头205，与滑油系统进、出滑油管线连接，后端管箱侧面的一对管接头为为滑油系统中的进、出水管线管接头209，接至滑油系统进、出水管线连接，滑油散热器2整体固定在支座201上。这种结构的散热器在相同情况下，增大了散热面积，使散热效果比原来提高。
经过以上改进，本实用新型燃气轮机注水泵机组中的燃气发生器一次翻修寿命用已达到1200h，目前约为1.67×107m3/d的天然气消耗量、4.85×104m3/d的注水量用气单耗2.9m3/m3,低于3m3/m3的目标值，距厂房一米之内的噪声为77dB，5米之内的噪声为56dB，符合国家GB12348－90《工业企业厂界噪声标准》的三类标准。
本实用新型的工作原理如下：
以燃气发生器与动力涡轮配套组成的燃气轮机5作动力，通过传动箱3带动高压水泵1。空气进入燃气轮机5进行增压、加热、膨胀，然后排出高温燃气，燃气在动力涡轮中继续膨胀作功，将热能转变为轴功，通过传动箱3带动高压水泵1，提供高压水。同时将动力涡轮排出的高温燃气引入余热回收装置，最后烟气经烟囱排至大气，或不通过余热回收装置，燃气烟气经烟囱排至大气。
燃气轮机注水泵机组主机布局为分轴式的，它的动力涡轮通过齿式联轴器与传动箱3的输入轴联接，传动箱3输出轴与高压水泵1的联接也是通过齿式联轴器。动力涡轮排气室侧面排气口Ⅱ通过转接段与排气消音系统进口连接。
Claims (10)
1.一种燃气轮机注水泵机组，具有燃气轮机、高压水泵、传动箱、滑油系统以及进气消音系统，其特征在于：还包括排气消音系统和滑油散热器，其中排气消音系统的进气口通过转接段与燃气轮机中动力涡轮排气室侧面排气口连接；滑油散热器做为滑油系统中的主要设备之一，与滑油系统中的滑油管线连接。
2.按权利要求1所述的燃气轮机注水泵机组，其特征在于：所述排气消音系统具有消音器，消音器的一端通过垂直过渡段和方圆过渡段连接烟囱，消音器的另一端通过方方过渡段连接至弯头，弯头再经水平方方过渡段以及水平过渡段连接至燃气轮机的排气端。
3.按权利要求2所述的燃气轮机注水泵机组，其特征在于：在水平与垂直位置各设置一个膨胀节，其中水平膨胀节设于方方过渡段和弯头之间，垂直膨胀节设于水平方方过渡段和水平过渡段之间。
4.按权利要求2所述的燃气轮机注水泵机组，其特征在于：所述消音器采用阻性消声器中的插板式消声器，为可膨胀式结构，壳体与框架采用密封焊接形式，内护板采用耐热材料。
5.按权利要求2所述的燃气轮机注水泵机组，其特征在于：所述消音器具有多个消音片，每个消音片为框架结构，框架中间为消音材料，消音片迎气流的一端为半圆形。
6.按权利要求2所述的燃气轮机注水泵机组，其特征在于：水平过渡段采用内保温结构，外部为碳钢，内部采用耐高温材料，中间采用硅酸铝纤维毡保温材料。
7.按权利要求6所述的燃气轮机注水泵机组，其特征在于：第一膨胀节和第二膨胀节均为非金属膨胀节，采用内护板绝热保温的多层复合型结构，外表面通过非金属复合材料进行密封，两侧用钢法兰与其它段的法兰进行连接。
8.按权利要求1所述的燃气轮机注水泵机组，其特征在于：燃气轮机的燃烧室采用环形燃烧室，多个火焰筒均布在后机匣的环形腔道内。
9.按权利要求1所述的燃气轮机注水泵机组，其特征在于：燃气轮机的涡轮部分转子采用钢叶片。
10.按权利要求1所述的燃气轮机注水泵机组，其特征在于：所述滑油散热器具有筒体，筒体的前、后两端分别通过前管板和后管板设有前端管箱及后端管箱，在前管板和后管板之间安装换热管，换热管与前端管箱及后端管箱连通，筒体上方的管接头与滑油系统中滑油进、出管线连接，后端管箱通过侧面管接头接至滑油系统的进、出水管线连接，滑油散热器整体固定在支座上。
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