发布时间:2023-09-06 10:32:19 人气:723
我国的控制阀生产行业起步较晚,国内于20世纪70年代自行设计和生产的直通单座阀、直通双座阀、三通控制阀、高压控制阀、蝶阀、长行程执行机构和阀门定位器等传统产品直至20世纪90年代仍在生产与使用。我国控制阀的飞跃是从20世纪80年代开始,吴忠仪表有限责任公司率先引进日本山武公司的新一代CV3000系列控制阀,使得产品性能有了较大的提高,TG0280HW460AAAH派克液压阀上海恒传机电同时使得控制阀在系列化、标准化等方面得到了进一步完善,缩小了与国外产品的差距,成为目前国内执行器行业中控制阀的主流产品。其技术水平相当于国际20世纪80年代末或90年代初的水平,依然落后于国际先进水平,已经不能满足国内及国际市场的需求。从技术上分析,主要表现在以下几个方面:
TG0280HW460AAAH派克液压阀上海恒传机电分为单座阀和笼式双座阀。其中,单座阀的密封性较好,可达ANSI标准Ⅳ级、Ⅴ级甚至Ⅵ级。但由于结构上的特点,其允许压差比较小,要满足较大的允许压差,则其推力比较大,需要的执行机构(动力源)较大,使成本增加、能耗增加,而且还有一定的局限性。而笼式双座阀则相反,由于结构上的原因,其密封性较差,一般为ANSI标准Ⅱ级,在最理想的情况下,也只能达到ANSI标准Ⅳ级,在阀门关闭的时候,仍然有不同程度的泄漏,造成了物料的浪费,使成本增加。但由于具有压力平衡的结构,允许压差较大,因此所配的执行机构较小。
(2)节约能源 经济的高速增长必然会引起能源的极大损耗,然而地球的资源是有限的。原材料供不应求,石油、煤、水资源的消耗和短缺已成为目前及今后相当长时期内人们所面临的问题。因此,用
TG0280HW460AAAH派克液压阀上海恒传机电
https://www.mecc-fluid.com/ 上海恒传机电,上海恒传机电设备,上海恒传,恒传机电,上海恒传机电设备有限公司
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作者:宋工17317675830 https://www.bilibili.com/read/cv26303181/ 出处:bilibili
https://www.mecc-fluid.com/ 上海恒传机电,上海恒传机电设备,上海恒传,恒传机电,上海恒传机电设备有限公司