Digestive system and washing control method

Abstract

The present invention provides a fire extinguishing system and a cleaning control method for efficiently cleaning a heater used to heat a workpiece. [Solution] The system comprises a first tank for digesting sludge, a first pipe for supplying the sludge to the first tank, a heater provided in the first pipe for heating the sludge with a fluid, and a cleaning system for cleaning the heater by supplying cleaning water to the first pipe.

Claims

1. The first tank for digesting sludge, A first pipe for supplying the sludge to the first tank, A heater is provided in the first piping and heats the sludge with a fluid, A fire extinguishing system comprising: a cleaning system for cleaning the heater by supplying cleaning water to the first pipe.

2. Furthermore, the digestive system according to claim 1 is further equipped with a control device that controls the cleaning system in accordance with the arrival of a predetermined time.

3. Furthermore, a first supply device that supplies the sludge to the first piping, The digestion system according to claim 1, further comprising: a control device that controls the cleaning system to start supplying the cleaning water by the cleaning system when the supply of the sludge from the first supply device to the first piping is stopped.

4. Furthermore, a first supply device that supplies the sludge to the first piping, The digestion system according to claim 1, comprising: a control device that controls the cleaning system to stop the supply of sludge by the first supply device and start the supply of cleaning water by the cleaning system when the supply status of sludge to the first pipe satisfies a first condition.

5. Furthermore, the system includes a second tank for storing the sludge supplied to the first pipe, The digestion system according to claim 3, wherein the control device controls the cleaning system when the supply of sludge from the first supply device to the first piping is stopped and the liquid level of the sludge in the second tank satisfies the second condition.

6. Furthermore, the system includes a second tank for storing the sludge supplied to the first pipe, The digestion system according to claim 4, wherein the control device controls the cleaning system when the supply status of the sludge to the first pipe satisfies the first condition and the liquid level of the sludge in the second tank satisfies the second condition.

7. The aforementioned cleaning system, A second supply device that supplies the aforementioned washing water, A second pipe that supplies the cleaning water supplied by the second supply device to the first pipe, The fire extinguishing system according to claim 1, further comprising a third pipe for discharging wastewater from the first pipe after cleaning the heater.

8. Furthermore, a third supply device for supplying the fluid, A fourth pipe that supplies the fluid supplied by the third supply device to the first pipe, The heater is equipped with a third pipe that discharges the wastewater from the first pipe after cleaning the heater, The aforementioned cleaning system, The fire extinguishing system according to claim 1, further comprising a fifth pipe that supplies at least a portion of the fluid supplied to the fourth pipe as cleaning water to the first pipe.

9. A cleaning control method for a digestion system comprising: a first tank for digesting sludge; a first pipe for supplying the sludge to the first tank; a heater provided in the first pipe for heating the sludge with a fluid; and a cleaning system for cleaning the heater by supplying cleaning water to the first pipe, wherein A cleaning control method for controlling the cleaning system based on the supply status of the sludge to the first pipe.

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