Brazed Radiator in the preparation of heating
Brazed Radiator in the heating period, mainly heating test water test pressure, the use of the valve, if it is up and down, that is above the inlet valve, the following is the return valve, the valve from the valve handle and the valve body two Part of the composition, the default installation of the valve is closed, the valve handle and the valve into a cross state. Rotate the valve handle counterclockwise to make it in a state with the valve body to open the valve. Turn clockwise to close the valve. At the beginning of the heating, we can open the valve as described above.
After understanding the valve out of the valve, to see the temperature control valve: the other end, there is a temperature control valve, clockwise rotation can close the valve, counterclockwise rotation can open the valve.
Then there is the release valve: the valve in the heating of a caliber, Brazed Radiator is used to deflate, the valve has a water outlet, bleed screw, the outlet rotation to the outside of the wall, counterclockwise The screw can open the bleed valve. After the gas is discharged, turn the screw clockwise to close the bleed valve.
Test the water: the first off the return valve, and then open the water valve, so that water can be filled with radiator, and then you can open the release valve, the air in the radiator out. So that heating is full of water. Try to check the water need to pay attention to: Check whether the water is filled with water after the various interfaces are leaking: the valve and elbow interface, the valve and aluminum pipe interface, radiator and pipe fittings interface, heating and vent valve interface, if found at the interface Slightly water seepage phenomenon, do not worry, in accordance with state regulations, in 2 seconds of the phenomenon of dripping is a normal phenomenon, the reason is that the water pipe nozzle joints at the mouth of the hemp is not up, wait a few minutes later, until the normal hot water heating , Seepage phenomenon disappeared.
Brazed Radiators are now generally used as a device for heat dissipation of high-power electronic components and are widely used because of their excellent heat dissipation performance. Although the effect of Brazed Radiator is very good, but the Brazed Radiator for the working environment is also required, the following details of the Brazed Radiator on the environment requirements.
1. The Brazed Radiator should have the requirement that the resistivity of the circulating water should not be less than 2.5Ki2, the pH value is between 6} 9, the inlet water temperature is not higher than 35 ℃, the water flow is 4 8L / min;
2. When used in high voltage or higher voltage devices, it is necessary to ensure that the above water quality requirements or higher water quality requirements;
3. Water-cooled Brazed Radiator at work, should pay special attention to water leakage, anti-clogging, anti-condensation.
4. Air-cooled Brazed Radiator installation, Brazed Radiator blades should be in the direction of cooling air flow; inlet air temperature is not higher than 400C, the inlet side of the wind speed of 4 - 6mls;
5. As the air-cooled Brazed Radiator with the characteristics of wind resistance parameters, the choice of the machine in the Brazed Radiator, should be based on load requirements and fan capacity, check Brazed Radiator thermal resistance, flow resistance and wind speed curve, Considering the Brazed Radiator thermal resistance and wind resistance two parameters.
With the Brazed Radiator hot, the market there have been a large number of low-quality low-quality brazed radiator, this Brazed Radiator in terms of heat from the material, processing requirements, parts quality and other aspects of national industry standards Of the provisions of a larger gap in the use of the device life and machine quality have a greater impact. Users in the selection can be identified from the following aspects:
1.1 Brazed Radiator contact table surface roughness and flatness, a direct impact on contact resistance and pressure drop;
1.2 Brazed Radiator with a disc spring, should ensure that after 24 hours flat, the free height should be stable, or use a period of time after the spring may fail, will lead to brazed radiator and die contact bad.
1.3 Material (purity, thickness, processing accuracy, etc.) and the manufacturing process (casting cracks, shrinkage, etc.) is good or bad, poor material and rough defective process, will directly lead the Brazed Radiator thermal conductivity.
