How should the drain valves for the water pipes and condensate pipelines on the pipe tray be installed?
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Hello everyone: How should the drain valves for the water pipes and condensate pipelines on the pipe tray be installed? The normal drain valve should be located near the main pipe, but since the drain valve is quite high, it would not be economical to create a separate platform for it. With so many drain valves throughout the plant’s pipeline corridors, it’s also not possible to place them all in one place. However, if this is connected directly to the ground, the height difference between the pipeline leading to the ground and the ground itself must be at least 4 meters; these 4 meters constitute a dead end, and it is easy for the pipe to freeze in winter. Installing additional heating systems or electric heating for this purpose is not very economical. I would appreciate it if those with experience on this forum could offer some advice on how to handle this situation Thank you! ! !
The supervisor just said that it’s sufficient to empty it; during maintenance, one can use a lift or build a temporary scaffold to do the job.
Can I choose a drive chain to operate the valve?
Generally, experienced designers take into account the requirements for low-point drainage and high-point venting when designing piping systems. The BBKO scheme is adopted for pipeline layout, concentrating venting and drainage in several easily accessible areas. This is where the value of experienced pipeline designers lies.
The plant’s pipe corridors are quite long, which may make it difficult to set up scaffolding. An elevator is a good option, thank you
It’s usually valves with a size of 20 or 25; are there any valves available that come with a winch?
It can’t be changed now; is there any good solution?
I took another look at your question; there are a few points I don’t quite understand. Generally, draining the pipeline at its lowest point is used during pipeline testing; it should not need to be done frequently during normal operation. And you say the drainage level is relatively high, which means the drainage valve is located close to the main pipeline. The main pipelines are generally in constant flow, and proper insulation should prevent them from freezing. If it is to empty a few unused main pipelines during winter, then it is a one-time operation; there’s no need to fill and empty them repeatedly, as that would be wasteful. If it really comes to the point of needing to empty the pipeline system for maintenance, then using a scissor lift to raise workers up makes it not too difficult to shut off several valves. I want to understand what the urgency of your issue is, so that we can discuss possible solutions.