密封腔体压力超过 3MPa 时所采用的机械密封属高压机械密封，其结构、零件选材以及可靠性要求等都有别于普通型机械密封。高压机械密封结构形式包括两部分：密封结构形式和零件结构形式。重点应考虑压力的平衡问题，以避免力不平衡造成密封移位或变形，从而导致密封失效、�/p>

其中一种典型的单端面高压泵用机械密封，属于多弹簧平衡型、螺钉加键传动。工作温�?20~120℃，工作压力3~10MPa。静环端面上开数个均布的流体动压槽以适应更高的工作负荷，流体动压槽深度为1mm 左右，槽形多种多样，根据工况，主要是使用pv值来设计，通过试验来确立、�/p>

这种密封的特点是结构简单，零件采用增加了厚壁的结构，动环、静环常采用硬对硬材料组合方式，设置介质冲洗和静环背部急冷装置。该种密封形式应用范围很广、�/p>

对于双密封和多端面密封，应设置缓冲阻塞液循环系统。对于有毒、易燃、易爆的介质，不宜采用单端面密封，应采用平衡型双端面机械密封。当密封压力很高时，如超�?MPa，可采用串联式密封、三端面密封，即双端面加串联式结构、�/p>

密封百科知识内容选自《实用机械密封技术问答《�/span>

上海克兰定制集装式机械密�?nbsp;

上海克兰根据砂磨机复杂工况定制集装式双端面机械密封，4大技术亮炸�/span>

成就“稳� 耐磨 耐久”品质：

1、挠性设计，降低设备自身安装精度要求：�/span>

2、动环为浮动环结构，更匹配国内设备；

3、抗反压设计，物料不易进入封液罐，密封稳定，耐久：�/span>

4、挡珠子设计（用�?.1mm微珠）、�/span>

目前在用轴径�?9mm-225mm，转速：6000rpm

上海克兰为上海市专精特新中小企业、高新技术企业，24年机械密封老品牌！始终致力于提供机械密封整体解决方案和全生命周期服务，并拥有大量成功案例和丰富经验。为客户提供联合研发、测绘、选型、生产、试验、技术支持等一站式服务、�/p>

集装式机械密封：泵用机械密封、搅拌釜用机械密封、砂磨机机械密封、干气密封、�/p>

上海克兰优势服务：进口替代、上门测绘、特殊定制机封设计、�/p>

干气密封

l干气密封

非接触式气体润滑密封，端面无磨损：�/span>“气封液”密封更安全；全寿命成本低；密封控制系统结构简单，可靠性高；环保无污染、�/span>

泵用机械密封

搅拌釜用集装式双端面机械密封

l釜用搅拌器机械密�?/span>

上海克兰生产的种类包括：1、单端面干运转外装式釜用机械密封�?、搪瓷搅拌器专用机械密封�?、钢制反应釜机械密封�?、高压反应釜机械密封、�/span>

泵用集装式机械密�?/p>

上海克兰密封件有限公司（简�?/span>“上海克兰”）创立�?001年，自建厂区办公楼，建筑面积12000㎡。地处上海虹桥商务区，紧邻虹桥综合交通枢纽，距离虹桥枢纽�?0分钟车程，更�?小时覆盖长三角�?-5小时覆盖全国和日韩等东南亚主要城市，具有得天独厚的区位优势、�/span>

上海克兰为上海市专精特新中小企业、高新技术企业，专注于机械密封领域研发和生产、�/span>产品有泵用机械密封、釜用搅拌器机械密封、砂磨机机械密封、干气密封、密封辅助系统、轴承保护器、非标定制机械密封。提供从研发、设计、测绘、选型、生产、试验、技术支持等全生命周期机械密封整体解决方案和增值服务。广泛应用于石油、化工、新能源、半导体、矿业、医药、水利、市政、电力、环保等国家支柱领域。技术服务团队和产业匠人在上海克兰平均工作服务达15年以上，将流体密封核心技术和经验的积累传承注入每一个克兰产品，铸就每一个克兰产品非凡的可靠性和安全性，配套和服务大型集团企业，践行上海克兰品质口碑！同时远销美国、俄罗斯、英国、法国、阿根廷、南非、日本、印度、马来西亚、泰国等国际市场、�/span>

上海克兰始终秉承和弘扬中国匠造精神，�?/span>“诚信为本，质量第一，增值服务，开拓创新”的宗旨，“国际标准，上海精造”的密封品质，打� “共建、共赢、共享”的制造平台，共筑美好未来�

Shanghai Kelan Seal Component Co., Ltd.(referred to as "Shanghai Kelan") was founded in 2001, with a self built factory office building and a construction area of 12000 square meters. Located in Shanghai Hongqiao International Central Business District, adjacent to the Hongqiao Comprehensive Transportation Hub, it is only a 10 minute drive away from the Hongqiao Hub. It also covers the Yangtze River Delta in 1 hour and major cities in Southeast Asia such as Japan and South Korea in 2-5 hours, giving it a unique geographical advantage.

Shanghai Kelan is one of Shanghai specialized, sophisticated, unique and novel small and medium-sized enterprises, a high-tech enterprise specializing in the research and production of mechanical seals, with products including pump mechanical seals, reactor mechanical seals, agitator mechanical seals, sand mill mechanical seals, dry gas seals, sealing auxiliary systems, bearing protectors, and non-standard customized mechanical seals. Provide comprehensive solutions and value-added services for mechanical seals throughout their entire lifecycle, including research and development, design, surveying, selection, production, testing, and technical support. Widely used in national pillar fields such as petroleum, chemical industry, new energy, semiconductor, mining, medicine, water conservancy, municipal engineering, electricity, environmental protection, etc. The technical service team and industrial workers have worked and served in Shanghai Kelan for an average of over 15 years, injecting the accumulation and inheritance of fluid sealing core technology and experience into every Kelan product, creating extraordinary reliability and safety for every Kelan product, supporting and serving large group enterprises, and practicing the quality reputation of Shanghai Kelan! At the same time, the products are exported to international markets such as the United States, Russia, the United Kingdom, France, Argentina, South Africa, Japan, India, Malaysia, Thailand, etc.

Shanghai Kelan always adheres to and promotes the spirit of Chinese craftsmanship, with the purpose of "honesty, quality first, value-added services, and innovation", and the sealing quality of "international standards, Shanghai precision manufacturing", to create a manufacturing platform of "co-construction, win-win, and sharing", and build a better future together!