The invention relates to a domestic methane pressure stabilizing cut-off valve, which is composed of an upper shell and a lower shell cover, wherein, the diaphragm and the backing plate in the valve are screwed and locked on the mandril. The adjusting gland is screwed in the hole of the upper shell, and the threaded cap is enclosed in the orifice part. The upper part of the pull rod is provided with a spring seat, a voltage stabilizing spring, a regulating gland, and the handle spring extends out of the threaded cover and is connected with the handle through the shaft pin of the handle. The lower hole of the lower shell is provided with a voltage stabilizing spring, a sealing seat and a sealing pad, and a ceramic valve core is fixedly arranged at the orifice. A pressure stabilizing ventilation gap is arranged between the upper end face of the gasket and the ceramic valve core. The periphery of the diaphragm is pressed and fixed by the upper shell and the lower shell. The utility model integrates two functions of automatic stabilization of pipeline pressure and manual switching valve. The utility model has the advantages of compact structure, simple and flexible installation, high voltage stabilizing precision, simple operation, strong corrosion resistance, etc.. The utility model is suitable for stabilizing and switching on the methane pipeline.
【技术实现步骤摘要】
本专利技术涉及民用沼气应用技术,特别是一种民用沼气稳压截止阀。
技术介绍
现有农村家用沼气管路系统的压力调节普遍采用调压阀手动调 节,这种调压方式存在有明显的缺点。调压精度低、压力波动大,当 沼气池产气量大时,管路系统的压力高,当沼气池产气量小时管路压 力低,使用户沼气用具往往处于一种极不稳定的压力状态下工作,特 别是当管路压力过高时,燃烧沼气出现火力过大,容易造成沼气灶具 和沼气灯易被烧损坏。不仅浪费沼气能源,又易发生安全事故。
技术实现思路
本专利技术提供一种集自动稳定管路压力和手动开关阀两种功能于 一体的民用沼气稳压截止阀。本专利技术是用如下方式完成的。它由上壳体和下壳体盖合连接构成。它有进气管和出气管,膜片、 垫板经螺母旋装在顶杆上,膜片周边经上壳体和下壳体盖合压装固 定。下壳体的孔内装有密封座和密封垫,稳压下弹簧两端分别顶靠密 封座和下壳体的底壁,陶瓷阀芯固定在孔的上端口处,顶杆的杆头伸 进陶瓷阀芯内靠近密封垫的上端面,顶杆带螺纹端穿装膜片、垫板用 螺帽旋装,拉杆穿装过弹簧座、稳压上弹簧、调压盖、手柄弹簧和螺纹盖经手柄上的销轴连接手柄,拉杆下端头为凸台,调 ...
【技术保护点】
一种民用沼气稳压截止阀,它由上壳体和下壳体盖合连接构成,它有进气管和出气管,其膜片、垫板经螺母旋装在顶杆上,膜片周边经上壳体和下壳体盖合压装固定,其特征在于下壳体(16)的孔(24)内装有密封座(14)和密封垫(13),稳压下弹簧(12)两端分别顶靠密封座(14)和下壳体(16)的底壁,陶瓷阀芯(15)固装在孔(24)的上端口处,顶杆(11)的杆头伸进陶瓷阀芯(15)内并靠近密封垫(13)的上端面,顶杆(11)带螺纹端穿装膜片(9)、垫板(8)用螺母(7)旋装锁紧,拉杆(3)穿装过弹簧座(6)、稳压上弹簧(5)、调压盖(2)、手柄弹簧(4)和螺纹盖(20)经手柄上销轴(26 ...
【技术特征摘要】
【专利技术属性】
技术研发人员:伍斌强,李和平,
申请(专利权)人:迅达科技集团股份有限公司,
类型:发明
国别省市:43[]
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