CN203559861U - 固井添加剂的添加装置 - Google Patents
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Abstract
本实用新型涉及一种固井添加剂的添加装置，其包括添加剂容器和与所述添加剂容器相连接的混浆罐，还包括离心泵、液压马达和液压泵；所述添加剂容器设有出液口，所述出液口通过导管与所述离心泵的进料口相连接；所述离心泵的出料口通过导管与所述混浆罐的添加口相连接；所述液压马达的动力输入端与所述液压泵的动力输出端相连接，所述液压马达的动力输出端与所述离心泵的动力输入端相连接。通过PID控制器根据流量计检测出料口的流量信号控制液压泵的输出动力的大小，从而控制离心泵的出料口的流量，可以确保添加剂的添加时的稳定性和连续性，使得水泥浆在候凝期间，凝固均匀，提高了固井作业的质量。
Description
技术领域
本实用新型涉及一种固井添加剂的添加装置，其包括添加剂容器和与所述添加剂容器相连接的混浆罐。
背景技术
浅井或表层套管注水泥施土中，虽然水泥浆满足了泵送的要求，但往往存在稠化时间长、强度发展慢的问题，严重影响钻井进尺和固井质量。而加入促凝剂或早强剂，可以改变水泥浆性能，既能满足固井作业的要求，又能使强度尽快地达到继续钻进的要求。促凝剂具有对水泥制品速凝、促凝、早强等特点，能显著加快水泥的硬化速度，缩短凝结时间特高水泥制品的早期强度。
传统促凝剂的添加为手动添加，人工计算并控制促凝剂的添加量。人工手动控制，不能确保添加的稳定性，和连续性，易导致水泥浆在候凝期间，凝固不均匀，从而影响固井作业的质量，影响井口的生命周期。
实用新型内容
本实用新型所要解决的技术问题是提供一种固井添加剂的添加装置，通过PID控制器根据流量计检测出料口的流量信号控制液压泵的输出动力的大小，从而控制离心泵的出料口的流量，解决人工手动控制，不能确保添加的稳定性、连续性，易导致水泥浆在候凝期间，凝固不均匀，从而影响固井作业的质量，影响井口的生命周期的技术问题。
本实用新型解决上述技术问题的技术方案如下：一种固井添加剂的添加装置，其包括添加剂容器和与所述添加剂容器相连接的混浆罐，还包括离心泵、液压马达和液压泵；所述添加剂容器设有出液口，所述出液口通过导管与所述离心泵的进料口相连接；所述离心泵的出料口通过导管与所述混浆罐的添加口相连接；所述液压马达的动力输入端与所述液压泵的动力输出端相连接，所述液压马达的动力输出端与所述离心泵的动力输入端相连接。
进一步，还包括电控装置，所述电控装置包括流量计和PID控制器；所述流量计设置在所述出料口与所述添加口之间；所述PID控制器根据所述流量计检测所述出料口的流量信号控制所述液压泵的输出动力的大小，从而控制所述离心泵的出料口的流量。
进一步，所述的流量计优选为涡轮流量计。
本实用新型的有益效果是：通过PID控制器根据流量计检测出料口的流量信号控制液压泵的输出动力的大小，从而控制离心泵的出料口的流量，可以确保添加剂的添加时的稳定性和连续性，使得水泥浆在候凝期间，凝固均匀，提高了固井作业的质量。
附图说明
图1为本实用新型固井添加剂的添加装置的结构图；
图2为本实用新型固井添加剂的添加装置的控制示意图。
附图中，各标号所代表的部件列表如下：
1、添加剂容器，11、出液口，2、离心泵，21、进料口，22、出料口，3、液压马达，4、液压泵，5、流量计，6、混浆罐，61、添加口。
具体实施方式
以下结合附图对本实用新型的原理和特征进行描述，所举实例只用于解释本实用新型，并非用于限定本实用新型的范围。
如图1所示，一种固井添加剂的添加装置，其包括添加剂容器1和与所述添加剂容器1相连接的混浆罐6，还包括离心泵2、液压马达3和液压泵4；所述添加剂容器1设有出液口11，所述出液口11通过导管与所述离心泵2的进料口21相连接；所述离心泵2的出料口22通过导管与所述混浆罐6的添加口61相连接；所述液压马达3的动力输入端与所述液压泵4的动力输出端相连接，所述液压马达3的动力输出端与所述离心泵2的动力输入端相连接。
如图2所示，为本实用新型固井添加剂的添加装置的控制示意图，本实用新型还包括电控装置，所述电控装置包括流量计5和PID控制器；所述流量计5设置在所述出料口22与所述添加口61之间；所述PID控制器根据所述流量计5检测所述出料口22的流量信号控制所述液压泵4的输出动力的大小，从而控制所述离心泵2的出料口22的流量。
所述的流量计优选为涡轮流量计。
下面结合附图，对本实用新型固井添加剂的添加装置的工作方式进行说明。
液压马达3通过液压泵4输出的液压油带动离心泵2转动，当离心泵2转动时，会使得添加剂容器1内的添加剂被添加到混浆罐6内，同时PID控制器实时采集流量计5的输出的流量信号(记为a)，并与设定值(记为b)相比较：当a>b时，PID控制器发出降低转速的控制信号，使得液压泵4降低转速，使得出料口22的流量减小；当a<b时，PID控制器发出提高转速的控制信号，使得液压泵4提高转速，使得出料口22的流量增加。从而控制进入混浆罐6的添加剂的流量，实现了添加剂流量的稳定性，b还可以通过PID控制器设定为不同大、小的值。
以上所述仅为本实用新型的较佳实施例，并不用以限制本实用新型，凡在本实用新型的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本实用新型的保护范围之内。
Claims (3)
1.一种固井添加剂的添加装置，其包括添加剂容器（1）和与所述添加剂容器（1）相连接的混浆罐（6），其特征在于：还包括离心泵（2）、液压马达（3）和液压泵（4）；所述添加剂容器（1）设有出液口（11），所述出液口（11）通过导管与所述离心泵（2）的进料口（21）相连接；所述离心泵（2）的出料口（22）通过导管与所述混浆罐（6）的添加口（61）相连接；所述液压马达（3）的动力输入端与所述液压泵（4）的动力输出端相连接，所述液压马达（3）的动力输出端与所述离心泵（2）的动力输入端相连接。
2.根据权利要求1所述一种固井添加剂的添加装置，其特征在于：还包括电控装置，所述电控装置包括流量计（5）和PID控制器；所述流量计（5）设置在所述出料口（22）与所述添加口（61）之间；所述PID控制器根据所述流量计（5）检测所述出料口（22）的流量信号控制所述液压泵（4）的输出动力的大小，从而控制所述离心泵（2）的出料口（22）的流量。
3.根据权利要求2所述一种固井添加剂的添加装置，其特征在于：所述的流量计（5）为涡轮流量计。
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