CN201190660Y - 液氮泵橇超压超低温自动保护系统 - Google Patents
液氮泵橇超压超低温自动保护系统 Download PDFInfo
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Abstract
一种液氮泵橇超压超低温自动保护系统，用于液氮泵设备作业时对人员、设备及油井的安全保护，当排出的氮气超过预设的高压或超过预设的低温时，将使保护控制电磁阀动作，切断液氮高压柱塞泵的动力及其它需要保护的动作，实现自动保护功能。它主要由带高压电触点的氮气压力表、带低温电触点的氮气温度表、保护继电器、复位开关、复位继电器、报警指示灯、保护控制电磁阀等组成。
Description
技术领域
本实用新型为一种液氮泵橇超压超低温自动保护系统，属于油田施工的液氮泵设备领域。
背景技术
油气井的液氮泵作业是一种高压、低温作业，危险程度高。一旦作业中出现超过预置高压的情况，很可能造成油井的高压损坏，液氮设备高压管线的爆裂，甚至造成人员的伤亡等。同样，超过预置的低温很可能造成由于管道结冰而造成的对人员、设备及油井的损害。
常规的液氮泵设备作业都是配备经验丰富的操作人员，发生险情时紧急手动操作，不安全且很容易造成事故。
实用新型内容
本实用新型的目的：采用一种超压超低温自动保护系统，在液氮泵设备作业中当出现超压或超低温的情况时，实现自动保护，保障人员、设备及油井在液氮泵设备作业时的安全保护。
本实用新型采用的技术方案是：液氮泵设备超压超低温自动保护系统主要由带高压电触点的氮气压力表、带低温电触点的氮气温度表、保护继电器、复位开关、复位继电器、警告指示灯、保护控制电磁阀组成。带高压电触点的氮气压力表、带低温电触点的氮气温度表、复位继电器、保护继电器分别连接电源正极及负极，报警指示灯与保护继电器、保护控制电磁阀连接，复位开关与复位继电器连接。当排出的氮气超过预设的高压或超过预设的低温时，报警指示灯亮，保护控制电磁阀动作，切断液氮泵橇的动力。
本实用新型具有如下优点：
1、能实现液氮泵设备在超压、超低温时的自动保护及报警，使液氮泵设备的作业更加安全、可靠。
2、作业前预置的氮气工作最高压力及最低温度可以由操作者在带高压电触点的氮气压力表上及带低温电触点的氮气温度表上直接设置，操作快捷。
3、当超压或超低温工况消失后，通过按复位开关，也是液氮泵设备迅速恢复正常作业
附图说明
图1是液氮泵橇超压超低温自动保护系统工作示意图
图中，1-带高压电触点的氮气压力表，2-带低温电触点的氮气温度表，3-保护继电器，4-复位开关，5-复位继电器，6-报警指示灯，7-保护控制电磁阀。
具体实施方式
该液氮泵橇超压超低温自动保护系统由带高压电触点的氮气压力表1、带低温电触点的氮气温度表2、保护继电器3、复位开关4、复位继电器5、报警指示灯6、保护控制电磁阀7组成。
工作过程：液氮泵橇设备工作前，操作者根据油田井口的需要预置设备的最高工作压力和最低温度，由操作者在带高压电触点的氮气压力表1及带低温电触点的氮气温度表2上直接设置。液氮泵橇设备工作中，当排出的氮气超过预设的高压或超过预设的低温时，通过保护继电器3及复位继电器5的动作使报警指示灯6闪亮，同时使保护控制电磁阀7动作，进而切断液氮高压柱塞泵的动力，实现自动保护功能。当超压或超低温工况消失后，通过操作复位开关4，使液氮泵橇设备恢复正常作业。
Claims (1)
1.一种液氮泵橇超压超低温自动保护系统，由带高压电触点的氮气压力表、带低温电触点的氮气温度表、保护继电器、复位开关、复位继电器、警告指示灯、保护控制电磁阀组成，其特征在于：带高压电触点的氮气压力表、带低温电触点的氮气温度表、复位继电器、保护继电器分别连接电源正极及负极，报警指示灯与保护继电器、保护控制电磁阀连接，复位开关与复位继电器连接。
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