What are the requirements for water interconnection and water flushing?

(1) Water flushing and water interconnection require the use of fire-fighting water. (2) The temperature at all locations during water circulation must not exceed 50°C to prevent the cooling material from melting; water can be added or removed to manage this. If the water temperature rises above 50°C, the circulation must be stopped. (3) Water has a higher specific gravity than methanol; attention should be paid to the pump current during water circulation. (4) During water intermodal transport, pay attention to the blockage status of each filter and clean them promptly. (5) For water flushing and operation in conjunction, flushing is carried out in segments first before starting the combined operation; during this combined operation, discharge can be done alternately from various outlets. If necessary, the system’s water can be drained completely and then refilled for further operation, until the methanol content in the water is below 10 mg/L, at which point it is considered acceptable. (6) To prevent the foundation and equipment from sinking, drainage should be directed to the sewer system. (7) During water flushing, each pressure control valve should be set to manual mode and opened slightly; during the water testing phase, they should be set to automatic mode at their normal values, and the system should be filled with nitrogen.

What are the requirements and precautions for water flushing and water interconnection? Answer: (1) Water flushing and water circulation require the use of fire-fighting water. (2) The temperature at all locations during water circulation must not exceed 50°C to prevent the cooling material from melting; water can be added or removed to manage this. If the water temperature rises above 50°C, the circulation must be stopped. (3) Water has a higher specific gravity than methanol; attention should be paid to the pump current during water circulation. (4) During water intermodal transport, pay attention to the blockage status of each filter and clean them promptly. (5) For water flushing and operation in conjunction, flushing is carried out in segments first before starting the combined operation; during this combined operation, discharge can be done alternately from various outlets. If necessary, the system’s water can be drained completely and then refilled before resuming the combined operation, until the methanol content in the water is less than 10 mg/L, at which point it is considered acceptable. (6) To prevent the foundation and equipment from sinking, drainage should be directed to the sewer system. (7) During water flushing, each pressure control valve should be set to manual mode and opened slightly; during the water commissioning phase, they should be set to automatic mode at normal values, and the system should be filled with nitrogen.

III. Precautions for water flushing and water circulation 1. Fill the system with water, conduct a thorough inspection, adjust the valves according to the procedure, and first fill the tower and various containers with water. 2. All equipment and pipelines involved in the steam purging process are subjected to water flushing. 3. During water flushing, control valves, tee valves, orifice plates, flow meters, etc. should be removed to prevent clogging or damage to the instruments. 4. When blockages in the filter screen or pipelines are detected during water transportation, they should be removed promptly. However, it is necessary to slowly and completely release the pressure before removing all the screws for cleaning, in order to ensure safety. 5. During the water interconnection period, shut off the water supply every 4 hours to clean the various pipelines as well as the dead corners of connected valves, sampling ports, and drain outlets. Make sure to open the low-point drains of each tower and pipeline in order to remove debris. 6. When filling or draining water, the vent at the top of the equipment must be opened to prevent overpressure and damage to the equipment; a dedicated person should be assigned to oversee this process. 7. Operational training and accident drills must be carried out according to a plan, with strict adherence to relevant operating procedures; no tests shall be conducted without permission. 8. When filling with water, pay attention to the range of the pressure gauge; generally, the water pressure should not exceed 60-70% of that range. 9. When operating with water flushing, pay attention to the ranges of the various pressure gauges; generally, the operating pressure at the pump outlet should not exceed 50% of the gauge’s range, with a maximum of 70%. Gauges with a fluctuation range smaller than the specified ratio should be replaced. 10. The standby pump should operate alternately with the main pump to participate in the water transportation process. 11. Closely monitor the operation of the pump; the current must not exceed 70% of the pump’s rated current. The outlet flow must not exceed 1/2 of the specified flow to prevent overload and motor damage; all stations must keep records. 0 z# D6 g: d/ f) d% Z 12. Drain any remaining water after the water transportation process is completed.

Answer: (1) Water flushing and water circulation require the use of fire-fighting water. (2) The temperature at all locations during water circulation must not exceed 50°C to prevent the cooling material from melting; water can be added or removed to manage this. If the water temperature rises above 50°C, the circulation must be stopped. (3) Water has a higher specific gravity than methanol; attention should be paid to the pump current during water circulation. (4) During water intermodal transport, pay attention to the blockage status of each filter and clean them promptly. (5) For water flushing and operation in conjunction, flushing is carried out in segments first before starting the combined operation; during this combined operation, discharge can be done alternately from various outlets. If necessary, the system’s water can be drained completely and then refilled before resuming the combined operation, until the methanol content in the water is less than 10 mg/L, at which point it is considered acceptable. (6) To prevent the foundation and equipment from sinking, drainage should be directed to the sewer system. (7) During water flushing, each pressure control valve should be set to manual mode and opened slightly; during the water commissioning phase, they should be set to automatic mode at normal values, and the system should be filled with nitrogen.

What are the requirements and precautions for water flushing and water interconnection? Answer: (1) Water flushing and water circulation require the use of fire-fighting water. (2) The temperature at all locations during water circulation must not exceed 50°C to prevent the cooling material from melting; water can be added or removed to manage this. If the water temperature rises above 50°C, the circulation must be stopped. (3) Water has a higher specific gravity than methanol; attention should be paid to the pump current during water circulation. (4) During water intermodal transport, pay attention to the blockage status of each filter and clean them promptly. (5) For water flushing and operation in conjunction, flushing is carried out in segments first before starting the combined operation; during this combined operation, discharge can be done alternately from various outlets. If necessary, the system’s water can be drained completely and then refilled before resuming the combined operation, until the methanol content in the water is less than 10 mg/L, at which point it is considered acceptable. (6) To prevent the foundation and equipment from sinking, drainage should be directed to the sewer system. (7) During water flushing, each pressure control valve should be set to manual mode and opened slightly; during the water commissioning phase, they should be set to automatic mode at normal values, and the system should be filled with nitrogen.

Water flushing involves using water to remove residual rust, slag, dirt, and debris from pipelines and equipment, thereby keeping such components as pipelines, valves, orifice plates, and pumps clean and unobstructed, and thus creating the conditions necessary for water transportation. Hydro-transfer training involves using water in place of oil for operational training, while simultaneously conducting load tests on pipelines, pumps, equipment, towers, containers, heat exchangers, valves, and instruments in order to assess their installation quality and operational performance, ensuring that they meet production requirements and laying the foundation for subsequent work.

1. Water interconnection operates according to the water circulation process, and it is necessary to prevent water from entering other areas that are not involved in this interconnection. 2. When water passes through the cooler, heat exchanger, and control valve, if there is a bypass line, it should flow through that line first; only after the water becomes clean should it pass through the heat exchanger and control valve. 3. If a clog is detected in the filter screen or pipelines during water conveyance, the filter screen should be removed promptly for cleaning, or the clogged area should be identified and cleared. 4. In water intermodal transport, it is necessary to control the flow rate at the pump outlet so that it does not become too high, in order to prevent the motor from experiencing overcurrent (subject to the motor’s rated current). 5. During combined transportation, the standby pump should be switched in for use. 6. After filling equipment such as towers, vessels, and heat exchangers with water, drain water from all low points before starting the water commissioning. 7. When the circulating water becomes dirty, it can be partially drained depending on the situation, fresh water can be added, or all of the water can be drained to restart the circulation process. 8. After the water circulation is completed, the entire system should be drained of water promptly. At this time, it is important to ensure that the pressure inside each container is equal to that of the atmosphere, in order to prevent a vacuum from forming inside the containers during drainage and thus avoiding damage to the equipment. 9. After the water intermodal transport is completed, a simulation report for the water intermodal transport vehicle should be filled out. 10. When conducting water interconnection in winter, anti-freezing measures must be given full consideration.

(1) Water flushing and water interconnection require the use of fire-fighting water. (2) The temperature at all locations during water circulation must not exceed 50°C to prevent the cooling material from melting; water can be added or removed to manage this. If the water temperature rises above 50°C, the circulation must be stopped. (3) Water has a higher specific gravity than methanol; attention should be paid to the pump current during water circulation. (4) When using water for transportation, pay attention to the degree of clogging of each filter and clean them promptly. (5) Adopt a method of flushing in segments first before starting transportation; during transportation, discharge water from various outlets alternately. If necessary, drain all water from the system and refill it before resuming transportation, until the methanol content in the water is at an acceptable level

(1) Water flushing and water interconnection require the use of fire-fighting water. (2) The temperature at all locations during water circulation must not exceed 50°C to prevent the cooling material from melting; water can be added or removed to manage this. If the water temperature rises above 50°C, the circulation must be stopped. (3) Water has a higher specific gravity than methanol; attention should be paid to the pump current during water circulation.

(1) Water flushing and water interconnection require the use of fire-fighting water. (2) The temperature at all locations during water circulation must not exceed 50°C to prevent the cooling material from melting; water can be added or removed to manage this. If the water temperature rises above 50°C, the circulation must be stopped. (3) Water has a higher specific gravity than methanol; attention should be paid to the pump current during water circulation. (4) During water intermodal transport, pay attention to the blockage status of each filter and clean them promptly. (5) For water flushing and operation in conjunction, flushing is carried out in segments first before starting the combined operation; during this combined operation, discharge can be done alternately from various outlets. If necessary, the system’s water can be drained completely and then refilled before resuming the combined operation, until the methanol content in the water is less than 10 mg/L, at which point it is considered acceptable. (6) To prevent the foundation and equipment from sinking, drainage should be directed to the sewer system. (7) During water flushing, each pressure control valve should be set to manual mode and opened slightly; during the water testing phase, they should be set to automatic mode at their normal settings, and the system should be filled with nitrogen