About How to replace the heat exchanger of Wulong rock drill
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6 FAQs about [How to replace the heat exchanger of Wulong rock drill]
How do you replace a heat exchanger tube?
Explain tube removal and replacement process of a shell and tube type cooler. Cut off both end of faulty tube by the drill 1.0 mm smaller than the outside diameter of the tube. Drilling length should be about 5.0 mm shorter than tube sheet thickness. FIG.: Flare tool to flare tube ends What maintenance you will carry out on a heat exchanger?
How are heat exchanger tubes cleaned?
First, the tubes are drilled with specialized heat exchanger drilling equipment. After the drilling is done, Metal Projectiles are used to remove the remaining scale from the tubes. The reason the cleaning is done in two steps is that the drilling equipment is designed not to touch the tube wall.
How to remove a heat exchanger tube from a plant?
After isolation of the plant, remove end covers on either side of the Heat Exchanger. Remove the plugs by drilling or tapping method to avoid damaging the tubes. Cut the tube from one end by using tube cutter tools. Pull the tube using hydraulic stub puller without damaging the tube sheet. Place the old tubes in a safe area on the work platform.
How does projectile clean blocked and partially blocked heat exchanger tubes?
The method that Projectile uses for cleaning blocked and partially blocked heat exchanger tubes is a two-part method. First, the tubes are drilled with specialized heat exchanger drilling equipment. After the drilling is done, Metal Projectiles are used to remove the remaining scale from the tubes.
Can a flexible shaft drill unclog a blocked heat exchanger?
The downside of using a flexible shaft drill in unclogging a blocked heat exchanger is that it does not create as much torque and thus is not as effective at removing deposits. The flexible shaft is also much slower at removing tube deposits. The solid shaft creates much more torque and can eat through tube deposits much faster.
Can a heat exchanger be repaired?
A heat exchanger can be repaired, but it’s not always the most cost-effective solution. Weld repair can be effective for cracks, but it depends on the heat exchanger and the damaged part. It’s often more cost-effective to replace the heat exchanger. It is easier to fix a crack on a larger shell and tube heat exchanger than a smaller one.