Among the gas boiler accessories, the circulating pump is one of its important accessories, which mainly provides power to the medium in the pipeline. The installation of the circulating pump is very particular. There are disadvantages in selecting a large or small circulating pump, and the installation of the circulating pump also has certain particularities. Let's take a closer look.
In gas boilers, the circulating pump is generally built-in. The characteristic parameters of the circulating pump mainly include: head, flow, shaft power, efficiency, etc.
1. The head of the water pump △P The mechanical energy obtained by the unit weight of liquid after passing through the circulating pump is reflected as the increase in the static pressure of the fluid in the pipeline, and the unit is KPa, mbar, mH2o, etc.
2. Flow Q The volume or mass of fluid discharged from the pump per unit time, the unit is m3/h, L/s, Kg/h, etc.
3. Shaft power P The power transmitted to the pump shaft by the prime mover or transmission device is called the shaft power of the water pump, and the unit is KW.
4. Efficiency n The ratio of output power to input power is called the efficiency of the water pump.
In the installation of gas boiler accessories system, there are three types of circulating pump installation:
1. Two for use and one for backup. Two circulating pumps are used for normal use of gas boiler, and one is used as backup, and both are connected to the main line. Once a fault occurs in the two circulating pumps, the backup pump can ensure the normal operation of the gas boiler system.
2. Connect a pump to each branch. Each pump pipe has its own main water pressure, and the main line does not connect to the circulating pump.
3. Dual system connection. Combining the advantages of the above two connection methods, a pump is connected to each branch, and a pump is also connected to the main line. It not only ensures the self-sufficiency of each branch, but also enables the entire system to operate more stably. However, the investment cost of this gas boiler system is large, but the important thing is that the heating cost is very low, and the investment cost can be easily recovered within two years.
Among the gas boiler accessories, the circulating pump is one of its important accessories, which mainly provides power to the medium in the pipeline. The installation of the circulating pump is very particular. There are disadvantages in selecting a large or small circulating pump, and the installation of the circulating pump also has certain particularities. Let's take a closer look.
In gas boilers, the circulating pump is generally built-in. The characteristic parameters of the circulating pump mainly include: head, flow, shaft power, efficiency, etc.
1. The head of the water pump △P The mechanical energy obtained by the unit weight of liquid after passing through the circulating pump is reflected as the increase in the static pressure of the fluid in the pipeline, and the unit is KPa, mbar, mH2o, etc.
2. Flow Q The volume or mass of fluid discharged from the pump per unit time, the unit is m3/h, L/s, Kg/h, etc.
3. Shaft power P The power transmitted to the pump shaft by the prime mover or transmission device is called the shaft power of the water pump, and the unit is KW.
4. Efficiency n The ratio of output power to input power is called the efficiency of the water pump.
In the installation of gas boiler accessories system, there are three types of circulating pump installation:
1. Two for use and one for backup. Two circulating pumps are used for normal use of gas boiler, and one is used as backup, and both are connected to the main line. Once a fault occurs in the two circulating pumps, the backup pump can ensure the normal operation of the gas boiler system.
2. Connect a pump to each branch. Each pump pipe has its own main water pressure, and the main line does not connect to the circulating pump.
3. Dual system connection. Combining the advantages of the above two connection methods, a pump is connected to each branch, and a pump is also connected to the main line. It not only ensures the self-sufficiency of each branch, but also enables the entire system to operate more stably. However, the investment cost of this gas boiler system is large, but the important thing is that the heating cost is very low, and the investment cost can be easily recovered within two years.