Daily maintenance methods for plate and shell heat exchangers

Plate and shell heat exchanger is a very practical equipment, but the plate and shell heat exchanger in the use of many aspects of maintenance is required, the following author to introduce you to the plate and shell heat exchanger daily maintenance methods.

1?Plate and shell heat exchanger operators strictly implement the operating procedures to ensure that the import and export temperature, pressure and flow control in the operating index, to prevent rapid changes, and carefully fill in the records.

2?Regularly check the plate and shell heat exchanger shell, head, pipe and flange connections for abnormal noise, corrosion and leakage; whether there is friction or collision between the equipment and pipeline and adjacent components; whether there is cold running phenomenon inside, and detect the difference in import and export pressure of cold box.

3?Check whether the safety accessories of plate and shell heat exchanger are complete, sensitive and reliable. Whether the pipe fittings and accessories are complete and intact, whether the switching system is running normally, defects are found and removed in a timely manner; diligently wipe, diligently clean, keep the equipment and the environment clean, so that no dirt, no garbage, no leakage.

4?Check whether the cooling effect of the plate and shell heat exchanger refrigerator is good, whether the outer wall is freezing, frost or condensation, and whether the nitrogen seal pressure in the refrigerator is normal. Check for sinking of the pearlescent sand on top of the cooler and replenish it if it does.

5, Plate and shell heat exchanger maintenance personnel should regularly check the daily tour, found running, bubble, leak, drop timely treatment; to ensure that a variety of machinery, electricity, instrument equipment in good condition, valve switch flexible; check the fastening bolts of the connections are complete and reliable.

6?Check from the bottom of the plate shell heat exchanger cold box to check whether there is any cold gas escaping from the exhaust holes of the strength layer on both sides of the plate bundle unit, and if necessary, analyze the gas imported and exported from each channel or cold box escaping gas and the composition of the condensate trap drainage fluid, and carry out leak detection.

7?Check whether the plate and shell heat exchanger resistance, cross-sectional temperature difference, medium pumping temperature, cold box nitrogen seal pressure and other parameters are normal.

8?Strictly implement the handover system, not ruled out the fault should be reported in time, the fault not ruled out blind driving.

9?Maintenance time: plate and shell heat exchanger operators check every 2h; instrument personnel check once a day; main process indicators recorded every hour; equipment personnel check once a month and make good records.

The above is the plateandshell heat exchanger for you to introduce the daily maintenance method, hope can help you, if you have other aspects want to understand, can come to us.