Also known as low-ribbed tube, it mainly depends on the outer ribbing of the tube (ribing coefficient is 2-3) to expand the heat transfer area. The use of threaded tubes in boiler equipment can increase the heat transfer area by more than 1 times; and the surface tension inside the tube is strong, which also has a good strengthening effect on condensation and boiling outside the tube. Compared with the traditional smooth tube, it has the advantages of high heat transfer efficiency, not easy to scale, small size, and material saving.

The deaerator is one of the key equipment in the boiler and heating system. It is mainly composed of the deaerator tower head, the deaerator water tank, as well as the connecting pipe and the external parts. If the deaerator's deoxidizing ability is poor, it will cause serious corrosion to the boiler's water supply pipeline, economizer and other ancillary equipment, and the economic loss will be dozens or even hundreds of times the cost of the deaerator. Everyone must pay attention to the quality selection of deaerators.

The sub-cylinder is also called the sub-drum, which is the main supporting equipment in the steam boiler. It is widely used in power generation, petrochemical, steel, cement, construction and other industries. It can distribute the steam generated by the boiler to various pipelines. The pressure-bearing equipment of the sub-cylinder system belongs to the pressure vessel, and its pressure-bearing capacity and capacity should correspond to the supporting boiler. The main pressure components of the sub-cylinder are: head, shell material, etc.

The gas boiler economizer is mainly composed of flue heat exchanger, thermal insulation regulating water tank, circulating water pipeline, hot water circulating pump, solenoid valve, electrical control and monitoring and display system. Without changing the original body of the boiler, a flue gas heat exchanger is installed at the exhaust outlet to reduce the exhaust gas temperature of the boiler to a low enough level, and the superheated water vapor in the flue gas will condense, and through heat exchange It absorbs the physical sensible heat in the exhaust smoke and the latent heat of vaporization released by the condensation of water vapor.

As the most important auxiliary equipment in boiler equipment, the quality of the burner will directly affect the operating efficiency of the boiler and the emission of nitrogen oxides. Fangkuai boiler is an integrated (split) burner designed and manufactured in accordance with relevant international and domestic standards. It adopts multi-stage combustion method and covers a wide range of furnace types. It can be used in water tube boilers, fire tube boilers, modular boilers, central return Types of boilers such as burning boilers.

In the system of oil-fired and gas-fired boilers, the condensing heat exchanger is the corresponding waste heat recovery and utilization equipment installed at the end of the boiler. If the flue gas is around the heat transfer surface, the corresponding near-wall surface temperature will gradually drop to the dew point temperature, which is accompanied by the cooling and condensation process of the water vapor, thereby releasing the corresponding heat and conducting the heat to the interior through the heat transfer surface. The specific working fluid is used, and then the heat in the exhaust gas is collected again, so as to achieve the purpose of energy saving and environmental protection of the system.

The boiler regularly discharges sewage or waste hot water whose pressure is higher than that output by the regular blowdown expander, and separates secondary steam and waste hot water through decompression and expansion. The secondary steam can be discharged into the atmosphere or used as a heat source, and the waste hot water is generally discharged into the sewer system through the sewage cooling pool. In this way, the recovery of secondary steam and waste hot water can be used as a heat source, and a part of the heat loss caused by the boiler blowdown can be recovered, and the efficiency of the boiler can be improved.

In the water supply process of industrial boilers, the main principle of using softened water is to use ion exchange resin to exchange iron, magnesium and calcium ions contained in water as sodium ions. Specifically, when the content of dissolved solids and various ions in tap water is known, the content of dissolved solids in demineralized water can be calculated simply by converting various ions in the liquid into sodium ions.

The continuous blowdown expansion vessel is connected to the continuous blowdown port of the boiler. By decompressing and expanding the continuous blowdown of the boiler, the blowdown is separated into secondary steam and waste hot water by adiabatic expansion, which is expanded and depressurized in the expander. , heat exchange and then discharge, secondary steam is led out by special pipeline, waste hot water is automatically discharged through floating ball liquid level valve or overflow regulating valve, and heat energy can be recovered and reused.