Water pressure fluctuation delayed protection method and device
A technology of time delay protection and water pressure fluctuation, applied in the direction of automatic disconnection emergency protection device, emergency protection circuit device, circuit device, etc., can solve the problems of production loss, equipment shutdown, protection circuit malfunction, etc. Convenience, easy maintenance, and the effect of improving equipment operation rate
Inactive Publication Date: 2018-04-27
GUIZHOU WIRE ROPE
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Problems solved by technology
[0002] In the equipment with water pressure protection, due to objective factors, the instantaneous fluctuation of water pressure is common. If the instantaneous fluctuation of water pressure is lower than the protection value, it may cause the protection circuit to malfunction, cause the equipment to stop, and cause unnecessary losses to production. How to not only affect the normal protection function of water pressure protection, but also effectively avoid the malfunction of the protection circuit caused by the instantaneous fluctuation of water pressure caused by various reasons, can effectively improve the operation rate of equipment and labor productivity
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[0014] The present invention takes the six-phase thyristor SCR1-6 rectifier as an example, and further describes the present invention in detail in conjunction with the accompanying drawings:
[0015] The water pressure fluctuation time-delay protection device of the present invention presses figure 1 , which consists of a pressure sensing device 1, a delay circuit 2 and a protection circuit 3; the delay circuit 2 is provided with an electric contact pressure gauge contact 21, a water pressure fluctuation delay protection device 22, and the protection circuit 3 is provided with a start 31, a stop 32. Other protections 33. Water pressure fluctuation delay protection contact 34.
[0016] Water pressure fluctuation delay protection method of the present invention:
[0017] (1) The six-phase silicon controlled rectifier SCR1-6 adopts water-cooling cooling method, the pressure sensing device 1 of the water system is an electric contact pressure gauge, the water pressure is lower t...
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A water pressure fluctuation delayed protection device is composed of a pressure induction device, a delay circuit and a protection circuit. The delay circuit is equipped with an electrical connectionpoint pressure meter contact and a water pressure fluctuation delayed protection device. The protection circuit is equipped with a water pressure fluctuation delayed protection contact. The pressuresignal produced by the pressure induction device passes through the delay circuit, and the delay time is 5-10 seconds. Only when the water pressure is continuously lower than a protection value and the duration exceeds the delay time, the protection circuit acts to cut off the output of a silicon controlled rectifier so as to prevent the silicon controlled rectifier from being overheated and burned down. Therefore, the misoperation of the protection circuit caused by instantaneous water pressure fluctuation due to various reasons is avoided.
Description
technical field [0001] The invention relates to a water pressure fluctuation time-delay protection method and a device thereof, belonging to the technical field of electrical control systems. Background technique [0002] In the equipment with water pressure protection, due to objective factors, the instantaneous fluctuation of water pressure is common. If the instantaneous fluctuation of water pressure is lower than the protection value, it may cause the protection circuit to malfunction, cause the equipment to stop, and cause unnecessary losses to production. How to not only affect the normal protection function of the water pressure protection, but also effectively avoid the misoperation of the protection circuit caused by the instantaneous fluctuation of the water pressure caused by various reasons, can effectively improve the equipment operation rate and labor productivity. Contents of the invention [0003] The purpose of the present invention is to provide a water p...
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IPC IPC(8): H02H5/08H03K17/28
CPCH02H5/08H03K17/28
Inventor 翁永松罗棱丰陈刚
Owner GUIZHOU WIRE ROPE