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液压系统安全保护措施
(1)冗余设计
在液压系统中设置备用元件.由此做到即使其中之一发生故障，而整个系统并无端障，这种设计称为冗余设计。冗余设计是进步液压系统安
全可靠性的有效措施之一。
冗余设计方法萦多，种类各异，大体可分为工作冗余和非工作冗余两大类。
①工作冗余.
它是指将几个回路(或元件)并联起来同时工作，且只要不是所有回路(或元件)都发生故障，系统就不会发生故障。
②非工作冗余.
在一个回路(或元件)发生故障时，同机能和规格的其他回路(或元件)，通过转换装置，立刻接上去.使系统继承工作。
(2)集成化设计
集成回路不用或减少了管道连接，减少了污染机会，还可避免管道震惊、噪声等不良影响，不仅使系统结构紧凑，而且可极大进步系统可靠性。
目前，集成回路已走向尺度化，在系统配置设计时.建议优先采用这种方式。
(3)公道选用过滤器
液压系统的大多数故障与油液污染有关。因此，必需根据系统的机能要求公道选用过滤器。从安全保护角度，对于那些高精度元件或系统
如电液伺服变量泵、伺服控制系统，所选用的滤油器应具有较高过滤精度，并应附带安全阀、压差指示发讯器等.以防止过滤器或油路堵塞时，
系统压力过大引起管路破裂和元件损坏。
(4)设置互锁电路
液压系统必需按照主机划定的顺序进行工作，除去在液压上采取必要措施外，通常是在电气控制系统中设置互锁电路，以防止外界环境变
化或操纵者误操纵，引起元件或系统的故障或损坏。
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DH：0769-22859339
SJ：13925501948 13925539480 13925580728
LXR：周国强
GW：www.yeyaxt.com www.jzyyz.com www.pumps88.com
Karma hydraulic system supporting several manufacturers, custom machining manufacturer of hydraulic systems , hydraulic systems supporting manufacturers custom
Hydraulic system security measures
( 1 ) in the hydraulic system redundancy redundant components set up , whereby if one of them fails to do , the whole system and unwarranted barrier , this design is called redundancy. Redundant design is progressive hydraulic system safety and reliability of one of effective measures .
Weigh more redundant design methods , different types can be roughly divided into redundant and non- redundant work two categories.
① job redundancy.
It refers to the number of loops ( or components ) to work simultaneously in parallel , and as long as not all circuits ( or components ) have failed , the system will not fail.
② non-working redundancy.
A circuit ( or component ) fails, with the other circuit functions and specifications ( or components ) , by converting means , and immediately Jieshangqu . Inheriting the system .
( 2 ) Integrated Design
Integrated circuits without reducing the pipe connections or reduce the chance of contamination , but also to avoid pipeline shock , noise and other adverse effects, not only to make the system compact and can greatly improve system reliability.
Currently, the integrated circuit has been toward standardization in the system configuration design . Recommend using this approach.
( 3 ) reasonable selection of filters
Most of the hydraulic system failures and oil pollution. Therefore , it is necessary according to the system 's performance requirements reasonable selection filters. From the security point of view , for those high-precision component or system
Such as electro-hydraulic servo variable displacement pump, servo control system , the choice of filter should have a high filtering accuracy, and should be accompanied by safety valve , pressure indicating the sender , etc. to prevent clogged filter or oil ,
System pipe rupture caused by excessive pressure and component damage.
( 4 ) Set interlock circuit
Hydraulic system must be delineated in accordance with the order of the host to work , remove the hydraulic take the necessary measures , which is usually set in the electrical control system interlock circuit to prevent external environment variable
Or operator of misuse , causing a component or system failure or damage .
Guangdong Golden hydraulic system supporting the processing and production design custom manufacturers.
DH :0769-22859339
SJ: 13925501948 13925539480 13925580728
LXR: Zhou Guoqiang
GW: www.yeyaxt.com www.jzyyz.com www.pumps88.com
