Safety device for an industrial boiler comprising relays mounted on a printed circuit board
    1.
    发明授权
    Safety device for an industrial boiler comprising relays mounted on a printed circuit board 失效
    包括安装在印刷电路板上的继电器的工业锅炉的安全装置

    公开(公告)号:US07385316B2

    公开(公告)日:2008-06-10

    申请号:US10480920

    申请日:2002-05-17

    IPC分类号: H02H11/00

    CPC分类号: F23N5/26 F23N5/206

    摘要: A safety device for an industrial boiler (CHA) including relays (REn) which are connected to form an electromechanical safety chain (CH1). Each relay (REn) is mounted on a printed circuit board (CIA, CIB, CIC, CIP). As a result of the arrangement, the relays can be mounted in a compact box that may be sealed so that it is impossible for an operator to access a relay in order to block it.

    摘要翻译: 一种用于工业锅炉(CHA)的安全装置,其包括连接以形成机电安全链(CH 1)的继电器(RE< N>)。 每个继电器(RE SUB)安装在印刷电路板上(C1A,C1,B2,C1C, ,CIP)。 作为安排的结果,继电器可以安装在可以被密封的小型箱中,使得操作者不可能访问继电器以阻止继电器。

    Safety device for boiler comprising a time delay protected by an electronic circuit
    2.
    发明授权
    Safety device for boiler comprising a time delay protected by an electronic circuit 失效
    包括由电子电路保护的时间延迟的锅炉的安全装置

    公开(公告)号:US07008217B2

    公开(公告)日:2006-03-07

    申请号:US10482307

    申请日:2002-05-17

    IPC分类号: F23N1/00

    摘要: A safety device for an industrial boiler (CHA) including electromechanical relays (REn, RS), which are connected in series in order to form an electromechanical safety chain (CH1), and at least one shunt relay (RTn) which is normally open and mounted in parallel to one of the electromechanical relays (REN). The shunt relay is controlled by an automaton (AP1) so that it is closed during a time delay. The shunt relay (RTn) is provided with a contact that is connected to an electronic circuit (CEn) and said electronic circuit (CEn) opens an electromechanical relay (RS) which is mounted in series in the safety chain when the shunt relay (RTn) is closed for longer than the time delay. Given the arrangement, in the event of an automaton failure, the time delay is ensured by the electronic circuit so that a satisfactory level of safety is guaranteed in relation to the installation.

    摘要翻译: 一种用于工业锅炉(CHA)的安全装置,其包括为了形成机电安全链(CH 1)而串联连接的机电继电器(RE ,RS),以及至少一个分流 继电器(RT< N>),其常开并并联安装在机电继电器之一(RE SUB)中。 分励继电器由自动机(AP 1)控制,以便在延时期间关闭。 分路继电器(RT< n>)具有连接到电子电路(CE& n>)和所述电子电路(CE< SUB> >)打开机电继电器(RS),当分路继电器(RT N>)闭合长于时间延迟时,机电继电器(RS)串联安装在安全链中。 考虑到这种安排,在自动机故障的情况下,通过电子电路确保时间延迟,从而相对于安装来保证令人满意的安全等级。