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CN202023730U 一种柱塞泵出口防蹩压保护开关 失效 - 权利终止

一种柱塞泵出口防蹩压保护开关
摘要：
一种柱塞泵出口防蹩压保护开关是油田柱塞泵保护装置，它解决了其它技术存在的问题，它是由壳体、启动按钮、丝杆处按钮、变压器、中间继电器线圈、常开触点连接而成，在壳体上安装着启动按钮、丝杆处按钮、启动按钮与常开触点连接，常开触点连接在变压器的一端220V线路上；丝杆处按钮一端连接在变压器的一端36V的线路上，丝杆处按钮另一端与中间继电器线圈连接，中间继电器线圈与变压器一端的36V线路连接；变压器固定在壳体内。
摘要（英）：

An anti-pressing protection switch for an outlet of a plunger pump is a protection device for an oilfield plunger pump, solves the problems existing in other technologies, and is formed by connecting a shell body, a start button, a button of a lead screw, a transformer, an intermediate relay coil and a normally-open contact, wherein the start button and the button of the lead screw are installed on the shell body, the start button is connected with the normally-open contact, and the normally-open contact is connected onto a 220V line which is arranged at one end of the transformer; one end of the button of the lead screw is connected onto a 36V line which is arranged at one end of the transformer, the other end of the button of the lead screw is connected with the intermediate relay coil, and the intermediate relay coil is connected with the 36V line at the other end of the transformer; and the transformer is fixed in the shell body.

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