The Phenomenon Of Overpressure In Jacketed Kettle
Cooking Mixer News /
08/01/2021
The phenomenon of overpressure in jacketed kettle
The phenomenon of overpressure in the jacketed kettle boiler is mainly caused by the following several reasons: the steam pressure rises sharply, exceeds the allowable working pressure, and the pressure of the pressure gauge pointer exceeds the "red line" after the safety valve operates. The pressure is still rising. When the overpressure interlock protection device is activated, an overpressure alarm signal should be issued to stop the air supply, induced air, and coal feed. The steam temperature increases and the steam flow decreases.
So how to deal with the overpressure of the jacketed kettle boiler?
To quickly weaken the combustion, manually open the safety valve or bleed valve.
Increase the water supply and strengthen the blowdown in the lower steam drum to reduce the temperature of the boiler water, thereby reducing the pressure of the boiler drum.
If the safety valve fails or all the pressure gauges are damaged, the furnace should be stopped urgently, and the pressure should be increased after the safety valve and pressure gauge are repaired. When the jacketed kettle boiler has overpressure and endangers its safe operation, pressure reduction measures should be taken, but it is strictly forbidden to reduce the pressure too fast.
After the severe overpressure of the boiler is eliminated, the boiler should be shut down for internal and external inspections, deformation and leakage caused by overpressure should be eliminated, and unqualified safety accessories should be repaired.
The maintenance manual of the jacketed cooking mixer kettle is as follows:
1) The equipment is an electric heating jacketed cooking mixer kettle. Before each shift, all transmission parts should be inspected and lubricating oil should be added to avoid dry grinding and damage to the equipment.
2) Check whether the electrical wiring is intact, whether the connection is safe and firm, whether the fuse is matched, and everything is intact before it can be energized for heating.
3) Check the amount of heat transfer oil added before starting the machine. The amount of oil added is 8 cm below the fuel filler opening.
4). During normal use, the two oil inlets on the upper edge of the pot body can not be blocked after the oil is filled, and open for heating. The electric heating power must be turned off after daily operation.
5) Operators should not carry water during operation, and stop the operation when there is oil leakage from the outside.
6). The temperature should be strictly controlled during operation, and it should be controlled below 200 degrees under normal circumstances.
7) Each time the oil is changed, the electric heating tube should be removed first, cleaned with alkaline water, and then refueled.
8). The heat transfer oil should be changed every 20 pots used, and the oil should be drained every month.
Finish, so as not to affect the heat conduction effect. Fill the jacket with 40℃, 2% lye and soak for 2 hours, then wash it with hot water, and then add oil.
9). Carry out maintenance after every six months, including: replacing the electric heating tube, various gaskets and electric heating tube wiring, checking the thermometer and so on.
10). To use the jacketed cooking mixer kettle, you must first add the solution of the material, then input the material, turn on the stirrer, and then turn on the electric heating power to reach the required temperature of the process. Before discharging, turn off the electric heating power. After 2~3 minutes, turn off the stirrer. After processing, the jacketed cooking mixer kettle should be rinsed with warm water as soon as possible to brush off the sticky materials, and then use 0~50℃ alkaline water. Fully clean the inner wall of the container and rinse it with clean water. Especially when there is no material (heat absorption medium) in the pot and the pot is empty, the electric heating power must not be turned on. Pay special attention to the operating temperature, which should not exceed the rated working temperature of 200°C.
This electric heating jacketed cooking mixer kettle is a high-energy-consuming electric equipment. During actual use, safe operation and management must be ensured, implemented in strict accordance with regulations, and daily operation records should be kept in order to better maintain the equipment.
The phenomenon of overpressure in the jacketed kettle boiler is mainly caused by the following several reasons: the steam pressure rises sharply, exceeds the allowable working pressure, and the pressure of the pressure gauge pointer exceeds the "red line" after the safety valve operates. The pressure is still rising. When the overpressure interlock protection device is activated, an overpressure alarm signal should be issued to stop the air supply, induced air, and coal feed. The steam temperature increases and the steam flow decreases.
So how to deal with the overpressure of the jacketed kettle boiler?
To quickly weaken the combustion, manually open the safety valve or bleed valve.
Increase the water supply and strengthen the blowdown in the lower steam drum to reduce the temperature of the boiler water, thereby reducing the pressure of the boiler drum.
If the safety valve fails or all the pressure gauges are damaged, the furnace should be stopped urgently, and the pressure should be increased after the safety valve and pressure gauge are repaired. When the jacketed kettle boiler has overpressure and endangers its safe operation, pressure reduction measures should be taken, but it is strictly forbidden to reduce the pressure too fast.
After the severe overpressure of the boiler is eliminated, the boiler should be shut down for internal and external inspections, deformation and leakage caused by overpressure should be eliminated, and unqualified safety accessories should be repaired.
The maintenance manual of the jacketed cooking mixer kettle is as follows:
1) The equipment is an electric heating jacketed cooking mixer kettle. Before each shift, all transmission parts should be inspected and lubricating oil should be added to avoid dry grinding and damage to the equipment.
2) Check whether the electrical wiring is intact, whether the connection is safe and firm, whether the fuse is matched, and everything is intact before it can be energized for heating.
3) Check the amount of heat transfer oil added before starting the machine. The amount of oil added is 8 cm below the fuel filler opening.
4). During normal use, the two oil inlets on the upper edge of the pot body can not be blocked after the oil is filled, and open for heating. The electric heating power must be turned off after daily operation.
5) Operators should not carry water during operation, and stop the operation when there is oil leakage from the outside.
6). The temperature should be strictly controlled during operation, and it should be controlled below 200 degrees under normal circumstances.
7) Each time the oil is changed, the electric heating tube should be removed first, cleaned with alkaline water, and then refueled.
8). The heat transfer oil should be changed every 20 pots used, and the oil should be drained every month.
Finish, so as not to affect the heat conduction effect. Fill the jacket with 40℃, 2% lye and soak for 2 hours, then wash it with hot water, and then add oil.
9). Carry out maintenance after every six months, including: replacing the electric heating tube, various gaskets and electric heating tube wiring, checking the thermometer and so on.
10). To use the jacketed cooking mixer kettle, you must first add the solution of the material, then input the material, turn on the stirrer, and then turn on the electric heating power to reach the required temperature of the process. Before discharging, turn off the electric heating power. After 2~3 minutes, turn off the stirrer. After processing, the jacketed cooking mixer kettle should be rinsed with warm water as soon as possible to brush off the sticky materials, and then use 0~50℃ alkaline water. Fully clean the inner wall of the container and rinse it with clean water. Especially when there is no material (heat absorption medium) in the pot and the pot is empty, the electric heating power must not be turned on. Pay special attention to the operating temperature, which should not exceed the rated working temperature of 200°C.
This electric heating jacketed cooking mixer kettle is a high-energy-consuming electric equipment. During actual use, safe operation and management must be ensured, implemented in strict accordance with regulations, and daily operation records should be kept in order to better maintain the equipment.
Contact Us:
Shandong Longze Machinery Co.,Ltd
Company website:https://www.firemixer.com/
WhatsApp/Wechat:0086 13153609533
Tel:0086 13153609533
E-mail:rena@loneze.com
Address:Zhucheng Economic Development Zone, Shandong Province, the first five lines west
Contact:Ms. Rena
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