Overview
Ire protection and emergency diesel engine pump unit auto water supply machine currently has been widely applied in sectors such as plants mines oil fields harbors steels and chemicals etc. majorly for drainage of industrial mines, agricultural irrigation flood fighting pollution emission emergency cooling of steel plants and emergency water supply for civil fire protection. It replaces traditional ways that use diesel engine power generator unit to start water pump and as emergency backup power for civil and fire protection it is particularly adaptable for unusual situations of water supply and drainage such as no alternating current power supply and power insufficient.
General function
1.A verticle control panel that uses PLC DC programmable controller as the core of master control, could manually or automatically control the water pump’s diesel engine unit via cables.
2.The diesel engine is equipped with a sensor for detecting velocity, temperature of water and oil, and oil pressure, used for inspection over the operational parameter of diesel engines and warning the signal source of protection.
3.The control panel has diesel engine hour totalizer, and indicates water and oil temperature, oil pressure, velocity, current (charge), and warning of high/low temperature of water and oil, overspeed, and failure to start for three times. Besides, it installs DC24V electrical source, indicator lights of pre-lubricant, pre-heating, charge (civil power charge),diesel engine start, engine unit operational and shutdown, etc., and electrical source key switch, and button/switch manually or automatically controlled; it also could set button/switch of multiple warning, silencing and reset.
Function of control
1. Self-starting function
When the manual/auto switch on the control panel is on auto mode, manual operation would not work. Once the control panel received start order, it would proceed with a self-starting programme. Before the first start, the pre-lubricant pump starts working for 10-20 seconds, then starts the diesel engine (for about 5-8 seconds); if the start fails, wait for 5-10 seconds before re-start; repeat the trial 3 times; if it ends in failure after trial start for three times, output the signal of start failure. Once it starts successfully, idle running for 5-10 seconds then automatically rises to the specified velocity, meanwhile send signal and switch on the clutch within 20 seconds to start for normal operation.
2.Auto pre-heating function
The engine unit could add a pre-heating system device in order to ensure a perfect start of the diesel engine when the environmental temperature in the engine room is lower than 5 centigrade.
3. Pre-lubricating system
When start a high power multi-cylinder diesel engine with low ambient temperature, a bigger start resistance will occur, therefore, a pre-lubricating pump should be added to impose a pre-lubricating before start running the diesel engine.
4. Auto-charging function
For the purpose of a perfect start to diesel engine even in case of an interruption of AC power supply, we can set auto-charging device in the control cabinet which through AC220C civil power to charge the storage battery, besides sharing by power generator to charging generator when diesel engine is running.
5. Auto-stop function
When the auto control panel receives a warning stop signal, the central control room stop signal or emergency stop signal, the engine unit will proceed shutdown procedure.
6. Manual start function
Before formally running the machine, manually push each button to inspect each function such as pre-lubricating, start, speed-raising, speed reduction, shutdown, and clutch of switching on/off power; when everything is running on track, the automatic procedure could proceed.
7. Protective warning function
When the water or oil temperature overheat (above 0.17mpu), or malfunction occurs such as overspeed, and disconnection of velocity sensor, the control cabinet would give warning signals.
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Our company specializes in the design, development, manufacture and sale of universal fluid equipment pump manufacturers.
Nanzhuang Industrial Park Boshan District Zibo City Shandong Province China
zhengji@zhengjipump.com
+86-533-4505770
+86-533-4518770
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