PROTECTION DEVICE INTEGRATED MEASURING SYSTEM UNIT automatic monitoring of chemical and technological parameters of liquid media

摘要

The utility model relates to a thermal power, nuclear and other industries and can be used in monitoring systems of chemical and technological parameters of liquid media, in particular, heat transfer fluids. The apparatus comprises a protective relay 1-3, 4-6 connected to the sensors monitored parameters of the sample fluid flowing into the measuring unit 7 via line 8, on which a stop valve, made according to the utility model in the form of a ball valve 9 with a hand-operated weighted at the free end of the lever 10, held in the open faucet via a solenoid holder 11 to its upper position under the bias to the vertical (4-7) ° in the direction of closing of the ball valve 9. in line 12 feeding the sample into the measuring unit 7 in accordance useful Neu model series includes the normally closed contacts 13-15 relays 1-3. When exceeding one of the parameters monitored by sensors 4-6 their predetermined limit values ​​triggers one sample of the respective protective relay 1-3, respectively opening the one in series of normally closed contacts 13-15. In this case line 12 is de-energized solenoid supply holder 11, releasing the locking lever weighted ball valve member 9 which is closed as a result. After removing the cause of tripping lever 10 manually return to the starting position. Technical results achieved - increasing the degree of tightness of valves, a significant reduction in power consumption for the device power, comprehensive protection of the measuring unit from exceeding the limits of any number of monitored parameters. 1 ab. 1 head. n. f ly-2-yl.