Friends who have heating at home know that in order to ensure the normal operation of heating, they often need to drain and deflate the radiator. Then what is the reason and how to operate? The following details:
1、 What is the need to deflate the radiator?
1. The radiator is not hot as a whole, possibly because the outdoor water inlet and return valves are not opened.
2. The single household is not hot locally, which may be caused by the failure to vent on the top floor.
3. The radiator is half hot and half cold, which is caused by gas accumulation at the tail.
In short, under the condition of ensuring the circulating pressure and temperature, the main reason for non heating is gas blockage, which can be solved by proper venting.
2、 How do radiators deflate? Steps to deflate the radiator
1. What is the radiator exhaust valve?
Radiator exhaust valve, also known as radiator running wind. Exhaust valve is an insignificant but vital device in the whole radiator system. The exhaust valve is generally installed at the top of the radiator and looks like a small screw.
During the operation of the whole radiator system, there will be gas in the pipeline. These gases are stored at the highest point of the system. When these gases accumulate to a certain extent, they will produce a 'gas blockage' phenomenon, hinder the flow of water in the system pipeline, and the heat conduction radiator will show no heat or uneven heating. Therefore, Vent valve is an indispensable part of radiator heating system.
2. After knowing the vent valve on the radiator, we can teach you how to deflate the radiator.
(1) the user should first check whether the pipeline inlet valve is open.
(2) close the inlet and outlet valves of the radiator at home.
(3) when the upper and lower valves are closed, the user gently loosen the vent valve, stop twisting the vent valve immediately after hearing the sound of gas discharge, and let the gas exhaust itself. Because the gas in the radiator accumulates at the top of the radiator, it is easy to release the gas under the action of atmospheric pressure.
(4) loosen the inlet valve slightly until there is stable water flowing out, and then close the vent valve. This step must be patient. Just unscrew it a little and hear the sound of water, otherwise the gas is not easy to be discharged.
Repeat the action in step 4 several times until all the gas is exhausted. Some users have more gas in the radiator system pipeline at home, which requires repeated exhaust to ensure the stability of heating.
3、 What are the precautions for radiator deflation?
The main problem of not heating is the accumulation of gas in the pipeline, resulting in poor water circulation. When residents discharge water to the radiator, what is actually released from the radiator is gas, and the amount of water is very small. Some residents do not understand. Releasing a large basin of water not only wastes water, but also causes insufficient storage of hot water in the heating pipe, resulting in the heating not reaching the due temperature.
In the process of radiator deflation, many residents accidentally screwed down the exhaust valve, the water in the pipeline gushed out, and the floor furniture of their home were flooded. Rubens radiator Xiaobian reminded that if the user accidentally unscrews the exhaust valve, he can immediately find a wooden chopstick, sharpen one end and insert it into the exhaust hole to avoid a large amount of water leakage. Then, find a professional to repair.
In addition, the point that the majority of users should pay special attention to is that 'venting' is not equal to 'discharging water'. In fact, 'discharging water' is a misunderstanding, which is not only invalid, but also getting colder and colder, and even affecting the whole building. Because the pressure of the heating is constant, if the user discharges water at home, it will cause the heating station to continuously add 'cold water' to fill, and as a result, the pipes become cooler and cooler. If a building discharges more water, the whole building will freeze. There is no scientific reason for 'discharging water'.