What is the difference between atmospheric hot water boiler and pressure hot water boiler
What is the difference between atmospheric hot water boiler and pressure hot water boiler
1. Different pressures
Atmospheric hot water boilers do not have working pressure, and the pressure of the hot water inside the boiler is always consistent with atmospheric pressure, and will not change with changes in water temperature; Pressure bearing hot water boilers have working pressure, and the steam water system is composed of closed containers and pipelines, with pressure changing with the increase of water temperature.
2. Different temperatures
The water temperature of atmospheric hot water boilers generally does not exceed 100 ℃, while the water temperature of pressurized hot water boilers can exceed 100 ℃ depending on the working pressure.
3. Different structural parameters
Atmospheric hot water boilers do not have such strict limitations on their structural parameters, and require a reasonable arrangement of heating surfaces to ensure reliable water circulation. There are few restrictions on the structure, making it more flexible and convenient; Pressure boilers have strict limitations on boiler capacity, parameters, installation location, etc. in terms of structure.
4. Different levels of security
Pressure bearing hot water boilers have working pressure and pose a risk of explosion, while atmospheric hot water boilers do not have pressure, and atmospheric hot water boilers do not have pressure and are connected to the atmosphere, so there is no risk of explosion.
5. Different procedures for handling
Atmospheric hot water boilers do not require inspection and acceptance by local quality inspection departments. After the purchase, installation, and commissioning of the boiler, it can be put into operation. Hot water boilers should be inspected and accepted by the local quality inspection department before they can be put into operation.
6. Different water level controls
Normal pressure hot water boilers do not operate under pressure. In order to achieve normal pressure operation, the inlet of the circulating water pump is connected to the outlet of the boiler, which draws hot water from the boiler to supply heat to the user. The return pipe is connected to the inlet of the boiler, and the water output of the gas boiler is equal to the water inlet of the system. Therefore, there may be water level control problems; Pressure hot water boilers do not have water level control issues.
7. Different heating systems
The heating system of a normal pressure hot water boiler is pumped from the boiler by a circulating pump. The water pump is a hot water pump that overcomes the resistance of the system; The heating system of a pressurized hot water boiler is supplied by the return water from the pumping system to the boiler, usually using a clean water pump.