low pressure oil fired boiler for water

Structure and characteristics of Water Tube Boiler (double Longitudinal Tube Boiler)

The structure of the double vertical tube water tube boiler is mainly composed of upper and lower vertical tube, convection tube bundle, water wall tube, header box and down tube and other pressure-receiving components. The length of the lower drum is about half shorter than that of the upper drum. The empty space is provided with a furnace, a curved water pipe is arranged between the two drums, and a water wall tube is arranged around the furnace. The burning equipment adopts a gas/oil burner, and the tail flue has an economizer. The boiler evaporation is generally less than 20 tons / hour (t / h), the working pressure is less than 2.5 MPa (MPa). The high-temperature flue gas enters the rear convection flue from the right exit of the furnace, flows in an S shape along the two smoke-proof walls, flushes the convection tube bundle laterally, and then flows through the economizer from the left side of the furnace wall, and is discharged by the induced draft fan and the chimney.

Boiler multiple protection: (1) the integration of low pressure fired boiler for water water level to protect water level and boiler design, the appearance of more compact appearance, accurately show the actual water level in the boiler body function. Coupled with dual independent electronic water level control system to achieve ultra-low water level in the boiler, low water level automatic adjustment function, the normal water level, high water level, ensure that the boiler in a variety of unforeseen circumstances foolproof, secure home. (2) steam pressure protection ☆ pressure controller: selection of high sensitivity of the pressure controller, the pressure is high, or low levels of signal to the electrical switch, other control lines or automatic control chain protection. Common pressure controller and pressure gauge, vapor pressure overpressure alarm can cut off the burner limit is reached; the pressure controller may be single or double fire burning fire the actual operating pressure regulator. ☆ safety valve: safety valve is the last line of defense to protect the boiler, the boiler pressure exceeds the limit, according to the set pressure relief valve design with the school, the exhaust steam pressure relief, to ensure the normal operation of the boiler. (3) having a burner flame protection flame protection inlet means, combustion function is to detect, when the ignition failure or extinguish combustion middle, immediately off the burner into the oil (gas) solenoid valve, the blower continues to operate at this time, the furnace was purged combustible residual gas, after 20 to 30 seconds purge, and various auxiliary blowers automatically cut off power, the boiler operation stops. (4) self-locking power failure protection case, the boiler shutdown immediately burst self-locking power interruption, if the current power is restored, the boiler will not start at any time, you must reset release self-locking, to re-start the ignition.

Recently, China's 21th National Assembly HVAC academic year in "Swan City" - Sanmenxia City, Henan Province began. This annual meeting embodies the HVAC industry leading experts, technical design schools scientists, representatives of major HVAC manufacturers and industry media, nearly 20,000 HVAC colleagues attended the meeting.

A customer in Bangladesh chose a 4 ton natural gas steam low pressure fired boiler for water produced by ZG boiler for the production of the enterprise. This boiler belongs to the wns series oil and gas boiler produced by ZG boiler. The tail of the wns series of oil and gas boilers produced by ZG boiler has a flue gas condensation recovery device, which can effectively control the exhaust gas temperature and has high boiler thermal efficiency. The boiler design has many protection functions such as over-temperature, over-pressure, water shortage, leak detection and flameout, and the operation is safe and reliable. Moreover, the oil and gas boiler adopts a fully automatic burner, and the feed water adopts continuous electric regulation, and the boiler has high automation degree and convenient operation.