The utility model relates to an external pressure self-adjusting sealing compensator, which comprises a left nozzle, a diversion pipe and a right nozzle, a diversion pipe and a left nozzle are welded, and a right nozzle is sliding connected. The left and right nozzles are arranged in the outer casing, the outer casing is welded with the left nozzle through the ring plate I, and the outer casing is connected with the right nozzle through the ring plate III. The bellows are arranged, the left end of the bellows is welded with the right nozzle, and the right end of the bellows is connected with the annular plate III; the outer side of the annular plate III is filled with a cavity and a cover, which is connected with the annular plate III by a screw and a nut, and a spring sleeved on a screw is arranged between the nut and the annular plate III. The compensator of the utility model adopts the working mode of external pressure, and the working stability is high; the outer side of the ring plate III is provided with a sealed packing chamber with elastic compression, so the sealing performance is better. The sealing structure and the outer sleeve of the bellows can effectively prevent the medium from leaking even if the bellows are leaking during the use of the utility model, so that the compensator does not leak as a whole. The utility model has a long service life and is safe and reliable in operation.
【技术实现步骤摘要】
一种外压自调节密封补偿器
本技术涉及管道补偿器
，尤其是一种外压自调节密封补偿器。
技术介绍
现有长距离输送高温、高压介质的管道一般都需要分段安装若干补偿管道伸缩的补偿器。为了保证管道安全，补偿器通常壁厚较大、强度较高。使用过程中，由于管道产生的伸缩量较大，补偿器波纹管波数较多，波纹管容易因疲劳出现局部泄漏，因此需要定期维护或更换补偿器，造成补偿器的使用寿命较短。现有矿井三维管道补偿器一般结构相对复杂，制造和安装都不方便，三维管道补偿器的密封件使用一段时期之后就易发生泄漏现象，从而必须更换补偿器，导致补偿器的使用寿命短，维护和更换的工作量大，成本较高。目前，根据管道补偿器承受介质压力的工作方式，通常分为内压式补偿器和外压式补偿器，内压式补偿器由于受到来自内腔介质压力的作用，补偿器伸缩过程中易发生扭动，工作稳定性较低，密封性能不理想。
技术实现思路
本技术的目的是提供一种工作稳定性较高，密封性能更好的外压自调节密封补偿器。本技术的目的是通过采用以下技术方案来实现的：一种外压自调节密封补偿器，包括左接管、导流管、波纹管和右接管，导流管的左端与左接管内壁焊接固定，导流管的...
【技术保护点】
1.一种外压自调节密封补偿器，包括左接管、导流管、波纹管和右接管，导流管的左端与左接管内壁焊接固定，导流管的右端通过挡环与右接管内壁滑动连接，其特征是：所述左接管与右接管的外圆周套设有外套管，外套管的左端通过环板Ⅰ与左接管的外表面焊接固定，外套管的右端通过环板Ⅲ与右接管的外表面滑动密封连接；所述外套管的内腔中设有波纹管，波纹管的左端通过铠板Ⅰ与右接管左端的外表面焊接固定，波纹管的右端通过铠板Ⅱ与环板Ⅲ连接；所述环板Ⅲ的外侧设有导向环，导向环与右接管的外表面之间设有填料腔，填料腔内填充有填料，填料腔的外侧设有填料压盖，填料压盖通过螺杆和螺母与环板Ⅲ连接，所述螺母与环板Ⅲ之间设...
【技术特征摘要】
1.一种外压自调节密封补偿器，包括左接管、导流管、波纹管和右接管，导流管的左端与左接管内壁焊接固定，导流管的右端通过挡环与右接管内壁滑动连接，其特征是：所述左接管与右接管的外圆周套设有外套管，外套管的左端通过环板Ⅰ与左接管的外表面焊接固定，外套管的右端通过环板Ⅲ与右接管的外表面滑动密封连接；所述外套管的内腔中设有波纹管，波纹管的左端通过铠板Ⅰ与右接管左端的外表面焊接固定，波纹管的右端通过铠板Ⅱ与环板Ⅲ连接；所述环板Ⅲ的外侧设有导向环，导向环与右接管的外表面之间设有填料腔，填料腔内填充有填料，填料腔的外侧设有填料压盖，填料压盖通过螺杆和螺母与环板Ⅲ连接，所述螺母与环板Ⅲ之间设有套设在螺杆上的弹簧。2.根据权利要求1所述的外压自调节密封补偿器，其特征是：...
【专利技术属性】
技术研发人员：吉慧萍，
申请(专利权)人：江苏恒丰波纹管有限公司，
类型：新型
国别省市：江苏,32
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