Practical Exercise on Purification Technology Version [044]

If starting up for the first time, it is necessary to first test the heat exchanger for leaks in order to prevent external or internal leaks. After that, follow the normal startup procedures for filling it with fluid and removing air. The fluid should be added slowly to avoid too rapid filling, which could result in gas being trapped between the plates and cause air blockages, thereby affecting the heat exchange efficiency of the heat exchanger.

If starting up for the first time, it is necessary to first test the heat exchanger for leaks in order to prevent external or internal leaks. After that, follow the normal startup procedures for filling it with fluid and removing air. The fluid should be added slowly to avoid too rapid filling, which could result in gas being trapped between the plates and cause air blockages, thereby affecting the heat exchange efficiency of the heat exchanger.

1. When using it on new process pipelines, be sure to remove debris from within the pipelines to prevent clogging of the heat exchangers. 2. If wastewater is used as the cooling medium, or if the waste heat from the wastewater is to be recovered, or if the medium contains particulate solids, a filter or dirt remover should be installed at the inlet of the heat exchanger to prevent it from getting clogged. 3. When the temperature of the cooling water (after being heated) exceeds 40°C, softening treatment should be carried out as much as possible to prevent scaling in the heat exchanger, which could affect heat transfer efficiency. 4. Check whether the pipeline connections are correct to prevent the mixing of the two media, which could lead to adverse consequences. 5. Before starting the machine, carefully check whether the inlet valves for the cold and hot media are closed and whether the outlet valves are open. 6. The device can be turned on only after the above tasks are completed. When starting the vehicle, first activate the pumps for the cold and hot fluids. Slowly open the inlet valve for the cold fluid, and then open the inlet valve for the hot fluid, allowing the fluids to flow into the heat exchanger gradually to prevent excessive temperatures. 7. Check all sealing surfaces and all welds for any abnormal conditions such as leaks. 8. Raise the temperature slowly, while simultaneously measuring and calculating whether the process requirements are met. Once satisfied, normal operation can be resumed.

1. When using it on new process pipelines, be sure to remove debris from within the pipelines to prevent clogging of the heat exchangers. 2. If wastewater is used as the cooling medium, or if the waste heat from the wastewater is to be recovered, or if the medium contains particulate solids, a filter or dirt remover should be installed at the inlet of the heat exchanger to prevent it from getting clogged. 3. When the temperature of the cooling water (after being heated) exceeds 40°C, softening treatment should be carried out as much as possible to prevent scaling in the heat exchanger, which could affect heat transfer efficiency. 4. Check whether the pipeline connections are correct to prevent the mixing of the two media, which could lead to adverse consequences. 5. Before starting the machine, carefully check whether the inlet valves for the cold and hot media are closed and whether the outlet valves are open. 6. The device can be turned on only after the above tasks are completed. When starting the vehicle, first activate the pumps for the cold and hot fluids. Slowly open the inlet valve for the cold fluid, and then open the inlet valve for the hot fluid, allowing the fluids to flow into the heat exchanger gradually to prevent excessive temperatures. 7. Check all sealing surfaces and all welds for any abnormal conditions such as leaks. 8. Raise the temperature slowly, while simultaneously measuring and calculating whether the process requirements are met. Once satisfied, normal operation can be resumed.

If starting up for the first time, it is necessary to first test the heat exchanger for leaks in order to prevent external or internal leaks. After that, follow the normal startup procedures for filling it with fluid and removing air. The fluid should be added slowly to avoid too rapid filling, which could result in gas being trapped between the plates and cause air blockages, thereby affecting the heat exchange efficiency of the heat exchanger.

If starting up for the first time, it is necessary to first test the heat exchanger for leaks in order to prevent external or internal leaks. After that, follow the normal startup procedures for filling it with fluid and removing air. The fluid should be added slowly to avoid too rapid filling, which could result in gas being trapped between the plates and cause air blockages, thereby affecting the heat exchange efficiency of the heat exchanger.

Answer: If starting up the unit for the first time, it is necessary to first test the heat exchanger for leaks in order to prevent external or internal leaks. After that, follow the normal startup procedures for filling it with fluid and removing air. The fluid should be added slowly to avoid too rapid inflow, which could result in gas being trapped between the plates and cause air blockages, thereby affecting the heat exchange efficiency of the heat exchanger.

If starting up for the first time, it is necessary to first test the heat exchanger for leaks in order to prevent external or internal leaks. After that, follow the normal startup procedures for filling it with fluid and removing air. The fluid should be added slowly to avoid too rapid filling, which could result in gas being trapped between the plates and cause air blockages, thereby affecting the heat exchange efficiency of the heat exchanger.

1. When using it on new process pipelines, be sure to remove debris from within the pipelines to prevent clogging of the heat exchangers. 　　 2. If wastewater is used as the cooling medium, or if the waste heat from the wastewater is to be recovered, or if the medium contains particulate solids, a filter or dirt remover should be installed at the inlet of the heat exchanger to prevent it from getting clogged. 　　 3. When the temperature of the cooling water (after being heated) exceeds 40°C, softening treatment should be carried out as much as possible to prevent scaling in the heat exchanger, which could affect heat transfer efficiency. 　　 4. Check whether the pipeline connections are correct to prevent the mixing of the two media, which could lead to adverse consequences. 　　 5. Before starting the machine, carefully check whether the inlet valves for the cold and hot media are closed and whether the outlet valves are open. 　　 6. The device can be turned on only after the above tasks are completed. When starting the vehicle, first activate the pumps for the cold and hot fluids. Slowly open the inlet valve for the cold fluid, and then open the inlet valve for the hot fluid, allowing the fluids to flow into the heat exchanger gradually to prevent excessive temperatures. 　　 7. Check all sealing surfaces and all welds for any abnormal conditions such as leaks. 　　 8. Raise the temperature slowly, while simultaneously measuring and calculating whether the process requirements are met. Once satisfied, normal operation can be resumed.

If starting up for the first time, it is necessary to first test the heat exchanger for leaks in order to prevent external or internal leaks. After that, follow the normal startup procedures for filling it with fluid and removing air. The fluid should be added slowly to avoid too rapid filling, which could result in gas being trapped between the plates and cause air blockages, thereby affecting the heat exchange efficiency of the heat exchanger.