我公司为美国haskel中国大陆区域代理商,产品包括气用增压泵、液用增压泵等。
液体增压泵(pneumatic driven liquid pumps):
haskel公司介绍:
haskel is an international organization offering a worldwide service through the haskel group of companies and factory trained distributors. the haskel group is headquartered in burbank, california, with facilities throughout the world. we have built an enviable reputation for quality based on high pressure fluid and gas handling equipment.
in addition to offering a comprehensive range of pneumatic driven liquid pumps, air amplifiers, pneumatic and hydraulic driven gas boosters, high pressure valves, fittings and accessories, we custom design and build power pacs and test rigs. our continued investment in technology ensures that haskel will stay at the leading edge of high pressure technology.
haskel是一家国际性组织,通过haskel集团公司和工厂培训的分销商提供服务。 haskel集团总部位于加利福尼亚州的伯班克,在世界各地都有设施。我们已经建立了基于高压流体和气体处理设备的质量令人羡慕的声誉。
除了提供全系列的气动驱动液体泵,空气放大器,气动和液压驱动气体增压器,高压阀,配件和附件,我们定制设计和构建功率pac和试验台。我们对技术的持续投资确保了haskel将保持在高压技术的地位
液泵原理:
the pumps automatically reciprocate on a differential piston principle. a large piston driven by relatively low pressure drive acts directly upon a smaller hydraulic piston.
the nominal ratio between piston sizes is indicated in the model coding and approximates to the maximum working pressure. the actual ratio is about 15% above nominal so that the pump continues to cycle when drive pressure equals nominal ratio. initially, the pump will cycle at maximum speed acting as a transfer pump to pressurize will cycle at a slower rate as the fluid meets resistance until it stalls at maximum output pressure. when a pressure drop downstream occurs, it will recycle as necessary in an effort to maintain maximum pressure. stall pressure is achieved when the outlet pressure rises and offers more resistance to the reciprocating differential piston assembly. the piston assembly then stalls when the forces balance, drive pressure x drive piston area equals outlet (stall) pressure x driven hydraulic plunger area.
the pump design is sensitive to very small pressure drops due to the low frictional resistance of the large diameter drive piston and hydraulic piston seals.
泵根据差动活塞原理自动往复运动。由相对低压驱动的大活塞直接作用在较小的液压活塞上。
活塞尺寸之间的标称比率在编码的模型中表示,并且近似于工作压力。实际比率比额定值高大约15%,使得当驱动压力等于额定比时泵继续循环。初,泵将以速度循环,用作输送泵以向下游加压。当流体遇到阻力时,泵将以较慢的速率循环,直到其在输出压力下失速。当下游出现压降时,其将根据需要再循环以努力保持压力。当出口压力升高时实现失速压力,并对往复式差动活塞组件提供更大的阻力。然后,当力平衡时,例如当驱动压力x驱动活塞面积等于出口(失速)压力x驱动液压柱塞面积时,活塞组件失速。
由于大直径驱动活塞和液压活塞密封件的低摩擦阻力,泵设计对非常小的压降敏感。
w h y u s e h a s k e l p n e u m a t i c d r i v e n p u m p s
our pumps offer many advantages over electrically driven pumps:
特点:
• safe pneumatic operation – no heat, flame or spark risk
安全气驱动操作 - 无热,火焰或火花危险
• up to 100,000 psi (7000 bar) capability
压力达100000psi(700bar)
• infinitely variable cycling speed
无级变速
• stall feature at pre-determined pressure to hold that pressure without consuming power
失速功能在预定压力下保持该压力而不消耗能量
• problem-free stop/start applications
无故障停止/启动应用程序
• easily automated – many modification and control options
易于自动化 - 许多修改和控制选项
• suitable for most liquids and liquefied gases
适用于大多数液体和液化气体
• alternative gas drive options – sour gas, natural gas,boil off gases, nitrogen
供选择气驱动气体选项 - 酸性气体,天然气,蒸发气体,氮气
• no need for air line lubrication – saves costs and prevents contamination
无需空气管路润滑 - 节省成本并防止污染
• robust, reliable, compact and easy to maintain proven design
坚固,可靠,紧凑,易于维护成熟的设计
• unbalanced cycling spool provides immediate response to pressure changes
不平衡循环阀芯可立即响应压力变化
• also available in standard, or custom built power pac configurations
也可用于标准或定制的功率太阳能配置
• excellent worldwide service for spares and repairs
为配件和维修提供卓越的服务
• can be manufactured to meet atex, ce and nace
可制造以满足atex,ce和nace标准