What to do if the condensate water temperature is too high?
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Our boiler system uses reverse osmosis water treatment; the treated water goes directly into the soft water tank. The condensate water recovered by the system also enters this soft water tank. Since the temperature of the condensate water is relatively high, steam is generated when it enters the open-type soft water tank. Does anyone in the industry have a solution for this issue? Additionally, our boiler is small and lacks a deaerator; therefore, it is not possible to use condensate water to pre-heat the water entering the deaerator.
I’m not sure how large the amount of condensate water is in your case; it’s worth checking whether recycling it is necessary. If installing additional equipment to lower the temperature of the condensate water is required, that will certainly involve additional investment. If the amount of water is small, there’s no need for recycling; instead, a jet pump can be used to send the condensate water directly back into the boiler
The main problem is the relatively high recovery rate of condensate water. After the condensate water enters the soft water tank, there is an excess of condensate water and a shortage of softened water; as a result, the softened water is also heated, leading to the formation of flash steam.
Don’t you have a cooling water tank or a cooling tower? If necessary, you can install one
In our area, what we do is add a heat exchanger to exchange heat between the desalinated water and the condensate water, which allows us to lower the temperature of the condensate water ! This post was last edited by eddy-8280103 on 2009-2-26 14:27.]
There is then no need to handle it this way.
Hehe, thanks to everyone for their help. Our boiler has only a capacity of 4 tons; if that’s not enough, it’s better to discharge some of the condensate water.
What was said upstairs is right! Our company just gets rid of a little bit!
Is there circulating water? If any. It can be cooled with circulating water. To a temperature you can tolerate. It can also be used for heating baths and similar things.
Adding a cooling tower is not appropriate. First, the cooling tower forces the condensate water to come into contact with the atmosphere, which prevents ensuring the quality of that water. Second, it increases the investment costs; if these costs exceed the benefits obtained from recycling the condensate water, it becomes uneconomical
Without deoxygenated water, is the temperature of the water fed into the boiler relatively low? It is recommended to exchange heat between the condensate and the boiler feed water, so that the heat can be recovered before it enters the deoxygenation tank.
It is recommended to recover the heat from the condensate water; this heat can be utilized in the production process. Since the owner mentioned it is a small boiler, the amount of condensate water is likely to be small as well. It would be better to use an air-eroding pump or an ejector to feed the water directly into the boiler, thereby allowing full utilization of the heat
1. In winter, residual heat can be used for heating. 2. Bathhouses can also make use of it. 3. Modify the feed water pump and water tank
The best method is to use an ejector or a steam reciprocating pump, which avoids electricity consumption while also recovering condensed water (condensed water is very expensive, so it shouldn’t be wasted)!
Mixing it into the reverse osmosis feed water tank reduces the load on the membranes; attention should be paid to temperature
The condensate water has a high temperature and a large volume; if there is a bathroom in the facility, it is best to heat exchange the condensate water before returning it to the water tank, thus making full use of the heat.
The heat contained in the condensate is considerable; it’s a shame to waste it. This heat can be recovered using a plate heat exchanger before being discharged. The investment required for this is minimal, and it is estimated that the cost can be recouped within 3 months.