Safety operation rules for high temperature and high pressure overflow jet dyeing machine

Equipment inspection before use:

Whether the oil in the pump bearing box has reached half level, if it is not enough, add enough oil to prevent bearing damage and failure. The cooling water valve of the pump mechanical seal should be opened to prevent failure and damage after high temperature. Check the electrical circuit, whether the temperature indicated by the thermometer at the mouth of the temperature bulb is correct, whether the safety overshoot pressure on the container is 0.3Mpa, and whether there is a lead seal mark. The pointer of the pressure gauge should be at the zero position, and there is a lead seal after calibration. If there is a problem, it must be dealt with before it can be used. The take-off pressure of the safety valve on the heater is 0.5Mpa.

Operation safety operation:

1. When the machine is running, the dye solution must exceed the lowest point inside the cloth storage box, and steam heating is not allowed before starting the machine. The steam must be turned off before shutting down.

2. When the machine is running, it is found that the water level at the liquid flow viewing hole is abnormal, which means that the gray cloth is not running normally. If the gray cloth is found floating out of the cloth storage box, it means that the cloth capacity is too large and the gray cloth must be reduced before driving.

3. When driving after dyeing, there must be no pressure on the pressure gauge. When the temperature on the thermometer is below 80 degrees, the machine will stop running. When the steam source is cut off, first open the top pressure reducing valve before opening.

4. When the machine is running, the driver is not allowed to leave the job. Check the pressure inside the machine at any time and it does not exceed 0.25Mpa. If it is found to exceed 0.25Mpa, the pressure reducing valve must be opened to bring the pressure back to this point. 0.2 MPa. If it is found that the pressure is not rising, the dyeing must be stopped to cool down, and the temperature can be dyed only after the cause is found out.

5. Must strictly abide by the relevant provisions of the pressure vessel operating procedures. When the pressure components and their welds and sealing fasteners leak, the pressure in the pot should be removed and the temperature should be lowered at the same time, and then the inspection should be carried out.