Working principle and technical characteristics of heating vacuum degasser

Vacuum degasser

Product review

If there is gas in the heating and cooling system, the system is prone to generate air resistance, resulting in poor circulation of the local or the whole system, resulting in the heating system not being hot and the refrigeration system not being cold. At the same time, due to the oxygen contained in the water, the heating (refrigeration) equipment, pipes and steel radiators are corrosive, causing perforation and water leakage. The presence of gas in the system can also cause corrosion of the pump, directly affecting the safety of the entire system. The vacuum degasser adopts a vacuum degassing method to quickly remove free gas and dissolved gas in the system, so that the system can operate safely and reliably.

Vacuum degasser working principle

According to Henry's law, the solubility of a gas in water is related to water temperature and pressure. At a certain temperature, it is proportional to the pressure of the gas; under a certain pressure, the water temperature decreases, the solubility of the gas increases, the water temperature increases, and the gas solubility decreases. When the pressure on the water surface is lowered, the gas dissolved in the water can be precipitated at a lower water temperature to remove the gas in the water. The vacuum degasser releases the free gas and dissolved gas in the water by generating a vacuum, and then discharges the system through an automatic exhaust valve, and the degassed water is injected into the system. These low-volume waters are unsaturated waters that are highly absorbent to the gas and will absorb the gases in the system to achieve a gas-water balance. The vacuum degasser repeats such a cycle every 20 to 30 seconds. This cycle is repeated to remove all gases from the system.

Vacuum degasser technical features

1. The exhaust time after the initial water injection of the heating or cooling system can be greatly shortened, which is very beneficial to the initial commissioning operation of the system.

2. Remove the gas in the system to prevent air resistance and ensure stable and reliable system during normal operation.

3. Eliminate pump cavitation and reduce system operation noise.

4, due to the removal of oxygen in the water, will reduce the system's aerobic corrosion, extending equipment use time.

5. Since the gas in the water is removed, gas bubbles are not attached to the surface of the heat exchanger, which improves the heating efficiency.

6. The working time and cycle of the degasser can be adjusted as needed.

7. The maximum capacity of a single system can be up to 150 m3; multiple units can be used in parallel.

8, the equipment is easy to install, fully automatic operation, safe and reliable, easy to maintain.

Vacuum degasser application range

Suitable for various heating or refrigeration cycle systems

DCH-ZK vacuum degasser specification model list

(If the product is updated, the device specifications are subject to change without notice)

Vacuum degasser technical parameters

Import and export pipe diameter: DN20 Working temperature: 1~90°C

Ambient temperature: 1~40°C Power supply: 380v/50Hz

L/R: L-cooling and hot and cold dual supply system, R-heating system

Vegetable Powder

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YT(Xi'an) Biochem Co., Ltd. , https://www.ytherblifes.com