Consultation on cooling for recycled steam condensate
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Experts, previously, the company’s steam condensate was discharged directly into the rainwater pipes as wastewater. However, due to environmental regulations, such discharge is no longer allowed. Around 60 tons per day; discussions are ongoing regarding reuse. I checked the forums and many people suggest reusing it in the cooling water cycle. But our cooling towers don’t have enough capacity to cool this amount of water in summer, though they can handle it in winter. If a separate cooling tower is to be installed for reuse, the cost is too high; I’m not sure if there are any other alternatives. Thank you
It’s a shame to throw away such a large amount directly; moreover, it’s being disposed of at high temperatures. Is the steam generated by your company itself? Producing deoxygenated water is costly; it is advisable to use this type of water first, as it can save a significant amount on water production costs. Additionally, the heat from this water can be reused, thereby reducing the thermal load on the boiler. Ultimately, a decision should be made based on the specific conditions of your company
Return to the boiler or used for domestic hot water (when the water quality is good)
Our company uses part of it to heat domestic water, and part of it to replenish the water in the cooling tower
1. First, check whether there are other units that can use this heat source without any restrictions. 2. Install a flash drum to convert excess steam into low-pressure steam. 3. Recycle the remaining water for use in the boiler
We first recover the boiler water; any excess is discharged through the circulating condensate system
Returning to the cooling tower – is the temperature of the condensate too high?
There will be an increase; with the amount of supplementation under control, it should be acceptable.
The factory does not have boilers; the steam comes from municipal power plants, so it is not possible to return it to the boilers. Currently, some of it is reused to heat the bathroom, and some is used for air conditioning in winter; overall, there is still too much of it.
If the condensate temperature is high, flash recovery can be considered. This amount of water is indeed a bit wasteful; preheating the materials or using it for heating could be considered