During installation and operation of gas-fired hot water boiler, the following matters need to be paid attention to:
1. All pressure vessels are connected with the water pump, the boiler is installed at the back of the equipment, that is, water is pumped into the container, and the non-closed vessels are installed at the back of the equipment, that is, water is pumped from the container.
2. If the plate heat exchanger is used with central heating, the plate heat exchanger can supply the heating area of 500m2, while if the plate heat exchanger is used with central air conditioning, the plate heat exchanger can supply the heating area of 300-400m2.
3. the water in the hot water system is generally 4KG per square meter (with heating) and 8KG (with central air conditioning, pay attention to low temperature difference and large flow)
4. In the installation of atmospheric gas boiler, the expansion water tank shall be at least one meter higher than the water outlet of the boiler.
5. 2 tons of gas boiler equipment in the heating use, according to the boiler supply 6000 meters, more than 2 tons per square meter in heating use, according to the boiler supply 7000-8000 meters, that is, per square meter by 90–100 watts and 85–75 kcal/hour, the bigger the boiler the higher the thermal efficiency.
6. Calculation method of hot water supply per hour when hot water boiler is used in the hotel:
Hotel room number ×50%×200KG= water consumption per hour
Calculation method of hot water supply per hour when hot water boiler is used in bath center:
Number of shower heads ×300KG= amount of bath water per hour
The water of bath big pool can use with shower boiler wrong peak
7. The size of the expansion water tank of the natural gas boiler is 0.3% of the system water volume, and the domestic hot water tank is the actual water volume (number of showers ×300KG).
8. Solenoid valve or opening and closing valve must be installed at the end of the backwater of the direct supply heating system. Keeping zheng’s water pump open and shut synchronously can prevent the backwater overflow of the heating system.
9. the hotel timely water supply system, equipped with circulating pumps (single-stage blades), must be equipped with zui high-rise as a starting point of circulating pumps, a pressure of 10 meters to follow up, if there are two kilograms of pressure on the sixth floor of the zhengzheng must be on the basis of the sixth floor of 20 meters.
10. The bath pipeline must be equipped with a valve at the end of the loop, and the valve should be adjusted to zui small to ensure the fluidity of water in the whole system of zheng, so as to ensure zheng that is hot.
11. The solenoid valve controls the opening and closing of the valve through electromagnetic induction. Electric valve is based on the electromagnetic signal, to control the valve flow size and open and close, is the process management.
In the installation and operation of gas-fired hot water boiler and gas-fired steam boiler, special attention should be paid to the details, as small as the installation and connection of each valve, as large as the selection of pumps and valves and instruments, to ensure the perfect presentation of the hot water boiler system.
