Shell and tube heat exchanger is a heat exchanger in the use of a more widely used, from installation to use have precautions, can be effective less shell and tube heat exchanger failure, extend the life cycle. So what is the shell and tube heat exchanger installation precautions?
First, the installation must be carried out before the pressure test
Heat exchanger must be in the maximum working pressure of 1.5 times the hydrostatic test related tests, the steam part must not be lower than the steam supply pressure plus 0.3MPa data; hot water part must not be lower than 0.4MPa information. In the test pressure, should keep 10 minutes pressure does not drop no change.
Second, the construction must leave enough space and access to the building
Construction space in the shell and tube heat exchanger front should be left to extract the bundle of space, that is, its head in the wall or roof distance shall not be less than the length of the heat exchanger, equipment operation channel net width should not be less than 0.8m, to ensure that enough operating space is conducive to the dismantling of the refurbishment.
Third, the installation of instruments to ensure that the instrumentation can be observed
Relevant instruments and meters to facilitate the detection of view is a must, all types of valves and instrumentation should be installed at a height that facilitates the operation and observation, so that once a problem occurs can be found to solve it.
Fourth, the vertical space distance also has the corresponding requirements
The highest point of the upper attachment of the heater to the lowest point of the building structure of the vertical clearance should meet the requirements of the installation and testing, and shall not be less than 0.2m, the reason for this is to facilitate maintenance.
