阅读说明：本技术 一种电磁阀智能实时寿命监测与故障预警系统及工作方法 (Intelligent real-time service life monitoring and fault early warning system for electromagnetic valve and working method ) 是由 柳长海 刘林波 于 2020-06-09 设计创作，主要内容包括：本发明涉及一种电磁阀智能实时寿命监测与故障预警系统及工作方法,属于电厂长带电电磁阀监控领域。本发明包括恒压源、电磁阀、控制继电器、电流检测装置和DCS系统,所述恒压源的负极端与电磁阀的一端连接,所述电磁阀的另一端与电流检测装置的一端连接,所述电流检测装置的另一端与控制继电器的一端连接,所述控制继电器的另一端与恒压源的正极端连接,所述控制继电器和电流检测装置均与DCS系统连接。设计合理、简便易行、效果良好,可以达到及时、准确预警,保证电厂生产流程的安全运行的目的；具有智能、实时监测与及时预警的功能优点和效果。(The invention relates to an intelligent real-time service life monitoring and fault early warning system for an electromagnetic valve and a working method, and belongs to the field of monitoring of long-belt electric electromagnetic valves of power plants. The device comprises a constant voltage source, an electromagnetic valve, a control relay, a current detection device and a DCS system, wherein the negative end of the constant voltage source is connected with one end of the electromagnetic valve, the other end of the electromagnetic valve is connected with one end of the current detection device, the other end of the current detection device is connected with one end of the control relay, the other end of the control relay is connected with the positive end of the constant voltage source, and the control relay and the current detection device are both connected with the DCS system. The design is reasonable, simple and easy to implement, the effect is good, and the purposes of timely and accurate early warning and ensuring the safe operation of the production process of the power plant can be achieved; the intelligent early warning system has the functional advantages and effects of intelligence, real-time monitoring and timely early warning.)

1. The utility model provides an electromagnetic valve intelligence real time service life monitoring and trouble early warning system which characterized in that: including constant voltage source (1), solenoid valve (2), control relay (3), current detection device (4) and DCS system (5), the negative pole end of constant voltage source (1) is connected with the one end of solenoid valve (2), the other end of solenoid valve (2) is connected with the one end of current detection device (4), the other end and the one end of control relay (3) of current detection device (4) are connected, the other end and the positive terminal of constant voltage source (1) of control relay (3) are connected, control relay (3) and current detection device (4) all are connected with DCS system (5).

2. The intelligent real-time life monitoring and fault early warning system for the electromagnetic valve according to claim 1, characterized in that: the constant voltage source (1), the electromagnetic valve (2), the control relay (3) and the current detection device (4) form a closed loop.

3. The intelligent real-time life monitoring and fault early warning system for the electromagnetic valve according to claim 1, characterized in that: and the control relay (3) is controlled by a switching signal sent by the DCS (5).

4. The intelligent real-time life monitoring and fault early warning system for the electromagnetic valve according to claim 1, characterized in that: one contact of the control relay (3) is connected to a control loop of the electromagnetic valve (2) to control the electromagnetic valve (2) to act, and the other contact is used as a feedback signal of a switching signal and sent to the DCS system (5).

5. The intelligent real-time life monitoring and fault early warning system for the electromagnetic valve according to claim 1, characterized in that: and the current detection device (4) sends the current of the control loop of the electromagnetic valve (2) acquired in real time to the DCS (5).

6. An operating method of the intelligent real-time life monitoring and fault early warning system for the electromagnetic valve according to any one of claims 1 to 5, is characterized in that: the service life and the fault of the electromagnetic valve (2) are pre-warned through an intelligent algorithm of the DCS (5).

7. The working method of the intelligent real-time service life monitoring and fault early warning system for the electromagnetic valve according to claim 1 is characterized in that: the intelligent algorithm functions include: the method comprises the steps of counting the switching times, counting the live time, monitoring a real-time voltage curve, monitoring a real-time current curve, monitoring a real-time resistance curve and monitoring a real-time heating value curve, and performing deep learning of service life management of the electromagnetic valve (2) and service life comparison of the electromagnetic valves (2) of the same type on the basis.

8. The working method of the intelligent real-time service life monitoring and fault early warning system for the electromagnetic valve according to claim 1 is characterized in that: when the service life of the electromagnetic valve (2) is about to exceed the limit, an early warning signal is sent out.

Technical Field

The invention relates to an intelligent real-time service life monitoring and fault early warning system for an electromagnetic valve and a working method, and belongs to the field of monitoring of long-belt electric electromagnetic valves of power plants.

Background

In a power plant control system, a solenoid valve is commonly used. In order to ensure that the process production system can be safely stopped when power is suddenly lost, the power oil pressure or air pressure is usually discharged by adopting a mode of closing the electromagnetic valve in an electrified way and opening the electromagnetic valve in a power-losing way. Solenoid valves that assume such a function are typically in a live mode when the process system is operating normally. With the increase of the electrification time, the service life of the electromagnetic valve is gradually reduced, and the electromagnetic valve is likely to break down at a certain moment to cause sudden interruption of the production process, so that great risk and loss are brought to safe production. Therefore, effective real-time monitoring and fault early warning are necessary for long-belt electric electromagnetic valves which bear important protection tasks.

At present, the main methods for detecting the service life of the electromagnetic valve focus on the aspects of on-off detection of a valve body of the electromagnetic valve, tightness detection of the valve body, fatigue test of the electromagnetic valve through the ten thousand on-off method and the like.

The technical scheme disclosed by Chinese with the publication number of CN 205483440U exclusively for 2016, 08 and 17 days, the technical scheme disclosed by Chinese with the publication number of CN 205691695U exclusively for 2016, 11 and 16 days, and the technical scheme disclosed by Chinese with the publication number of CN 204008907U exclusively for 2014, 12 and 10 days mainly relates to the on-off performance of the electromagnetic valve body and the tightness test of the valve body; the technical scheme disclosed in China with the publication number of CN 210090632U, which is exclusively used in No. 2020 and No. 02 and 18, in China with the publication number of CN 104345268B, in No. 2017 and No. 08 and No. 01, and in No. CN 105928690A, which is exclusively used in No. 2016 and No. 09 and No. 07, is mainly to perform ten thousand times of fatigue tests on the electromagnetic valve to detect the service life of the electromagnetic valve to be tested.

Generally, the current technical scheme does not relate to real-time online service life detection and fault early warning of the electromagnetic valve to be tested, and does not meet the production requirements of an actual power plant.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides an intelligent real-time service life monitoring and fault early warning system of an electromagnetic valve and a working method thereof, which have the advantages of reasonable structural design, simplicity, convenience, practicability and good effect, so as to achieve the purposes of timely and accurate early warning and guarantee of safe operation of the production process of a power plant.

The technical scheme adopted by the invention for solving the problems is as follows: this solenoid valve intelligence real-time life monitoring and trouble early warning system, its structural feature lies in: including constant voltage source, solenoid valve, control relay, current detection device and DCS system, the negative pole end of constant voltage source is connected with the one end of solenoid valve, the other end and the one end of current detection device of solenoid valve are connected, current detection device's the other end and the one end of control relay are connected, the other end and the positive terminal of constant voltage source of control relay are connected, control relay and current detection device all with DCS headtotail.

Further, the constant voltage source, the solenoid valve, the control relay and the current detection device form a closed loop.

Further, the control relay is controlled by a switching signal sent by a DCS system.

Furthermore, one contact of the control relay is connected to the solenoid valve control circuit to control the action of the solenoid valve, and the other contact is used as a feedback signal of the switching signal and sent to the DCS.

Further, the current detection device sends the current of the electromagnetic valve control loop collected in real time to the DCS.

Further, another technical object of the present invention is to provide a working method of an intelligent real-time life monitoring and fault early warning system for an electromagnetic valve.

The technical purpose of the invention is realized by the following technical scheme.

A working method of an intelligent real-time service life monitoring and fault early warning system of an electromagnetic valve is characterized in that: and early warning the service life and faults of the electromagnetic valve through a DCS intelligent algorithm.

Further, the intelligent algorithm function includes: the method comprises the steps of counting the switching times, counting the live time, monitoring a real-time voltage curve, monitoring a real-time current curve, monitoring a real-time resistance curve and monitoring a real-time heating value curve, and performing electromagnetic valve service life management deep learning and comparison of the service lives of the same type of electromagnetic valves on the basis.

Further, when the service life of the electromagnetic valve is about to exceed the limit, an early warning signal is sent out.

Compared with the prior art, the invention has the following advantages: the design is reasonable, simple and easy to implement, the effect is good, and the purposes of timely and accurate early warning and ensuring the safe operation of the production process of the power plant can be achieved; the intelligent early warning system has the functional advantages and effects of intelligence, real-time monitoring and timely early warning.

Drawings

Fig. 1 is a schematic diagram of a long strip electric solenoid valve control circuit in the prior art.

Fig. 2 is a schematic diagram of an intelligent real-time life monitoring and fault early warning system for an electromagnetic valve according to an embodiment of the invention.

Fig. 3 is a schematic flow chart of an intelligent algorithm of the intelligent real-time life monitoring and fault early warning system for the electromagnetic valve according to the embodiment of the invention.

In the figure: the device comprises a constant voltage source 1, an electromagnetic valve 2, a control relay 3, a current detection device 4 and a DCS system 5.

Detailed Description

The present invention will be described in further detail below by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not to be construed as limiting the present invention.