wns oil hot water boiler fuel

Basic requirements for thermal control of fuel gas boiler rooms 1. Main characteristics of fuel-fired Gas-fired Boiler the main difference between oil-fired gas-fired boiler and laminar combustion coal-fired boiler is that the combustion system is different, mainly in the fuel property and combustion mode. The combustion system of the fuel-fired gas-fired boiler has the following two characteristics: 1) if the combustion process is not controlled properly, a large number of combustible mixture can be formed in the furnace, and when the mixture is deflagration, it may cause the furnace explosion. Causing serious property losses and casualties. 2) the combustion mode of fuel-fired gas-fired boiler is space combustion, the combustion speed is faster and the load response is quick. 2. Self-control of oil-fired gas-fired boiler The control requirements are in accordance with the combustion system of the fuel-fired gas-fired boiler, and the basic requirements for the automatic control system of the oil-fired gas-fired boiler are as follows: (1) the reliable system is configured to prevent the explosion of the oil-fired gas-fired boiler. When designing the automatic control system of oil-fired gas-fired boiler, the reliability of the system must be given priority consideration, and if necessary, the design mode of setting the protection system and the detection control system separately can be adopted. In order to improve the reliability of the control and protection system, it is necessary to configure the necessary backup manual control and double indication of important parameters in the selection of the microcomputer control system. (2) strict procedures should be taken to control the start-up of oil-fired gas-fired boilers. Program control is adopted to strictly detect fuel system, air supply system and flame monitoring system in the process of starting and stopping, so as to avoid failure in the process of starting and stopping furnace. (3) timely alarm protection should be based on specific conditions. Select the following alarm and interlocking protection items related to combustion system: 1) alarm and interlocking protection of drum water level. 2) Boiler pressure overpressure (wns hot water boiler fuel outlet temperature overheating) alarm and interlock protection. 3) flameout interlock protection. 4) low oil pressure interlock protection (oil fired boiler). 5) High oil temperature interlock protection (oil fired boiler). 6) low oil temperature interlock protection (oil fired boiler). 7) low Gas pressure interlock protection (gas boiler). 8) High gas pressure interlocking protection (gas boiler). 9) low wind pressure interlock protection. 10) burner flange limit to open correlation lock. 11) combustible gas leakage alarm. 12) earthquake interlocking protection. (4) when the rapid system responds to the abnormal flame extinguishment in the operation of the fuel-fired gas-fired boiler, the automatic control system is required to cut off the fuel supply rapidly and prevent the fuel from entering the furnace, so the automatic control system is required to respond quickly enough. (5) when the load of the fuel-fired gas boiler changes, the response speed of the fuel regulation is higher than that of the air supply system. Hurry up. When the load increases suddenly, the increase speed of fuel is greater than that of the corresponding air quantity, which results in insufficient combustion and black smoke, and when the load decreases suddenly, the reduction speed of fuel is fast, and the oxygen content of exhaust smoke is too high. For the small boiler controlled by bit, the increase or decrease of combustion should match the increase or decrease of air volume, otherwise, the ignition may be extinguished. Therefore, combustion and air control should be considered in the design of automatic control system. (6) for the automatic control system of gas-fired boiler, the explosion-proof instrument should be used in the field instrument.

WNS series of horizontal three-pass fire tube boiler combustion WNS series of horizontal three-pass fire tube boiler combustion wns three horizontal boiler return main contents are as follows: 1) the flue gas flow arrangement of three recirculation zone, wet-back structure is completely welded, wavy hearth tube, the convection zone and optimized combination of light pipe threaded pipe, long flue gas flow, heat transfer effect. 2) the use of advanced burner with domestic burners, burner and abroad can be. The burner advanced technology perfect, fast start and stop speed, less fuel consumption, high thermal efficiency, soot and NOx emissions can reach the national standard. 3) equipped automatic control devices, to achieve water level of boiler operating pressure and combustion automatic control and protection to ensure the safe and stable operation of the boiler. 4) boiler with modular quick installation structure, compact layout reasonable, light weight, small footprint, simple and quick installation, easy maintenance. 5) Complete auxiliary boiler, in addition to the additional burner, control cabinet, chimney, according to the needs of the user can configure and assist the engine oil system. 6) According to user requirements, the boiler using the fuel such as light oil, heavy oil or diesel oil, can also be used a variety of gases, such as natural gas, synthetic gas, LPG, methane cleaning. Two fuels may be used interchangeably, or both fuels. Different burners can be configured according to different requirements.

In a number of bidders, the party quickly ready gas water tube boiler with its unique advantages of low nitrogen come out on top; the low nitrogen gas water tube boiler has the following advantages. 1, boiler factory ready, body welding, manufacturing completed in the factory, quality is the best guarantee to ensure the long-term safe and reliable operation of the boiler. 2, a small work site installation, short cycle, the boiler body all-membrane wall structure, effectively reduce heat loss boilers, to improve the thermal efficiency of the boiler. 3, boiler furnace, convection and rational use of two-pass arrangement flue gas velocity, effective control of the flue gas resistance, no fan, lower operating power consumption, energy saving. 4, micro-pressure combustion, the boiler to prevent the air leakage phenomenon, to effectively control exhaust excess air coefficient, reducing heat losses, improved boiler efficiency. 5, with forced water circulation system, the flow rate of each process are selected in accordance with the recommended standard upper limit value, to ensure that the cold boiled heating surface does not occur too, causing water hammer or squib; preventing sedimentation oxygen corrosion and impurities in the water, to avoid heat boiler accident damaged surface;? burner flame, gas overpressure or low pressure, 15 kinds of safety warning and fault protection device leakage protection, gas, comprehensive guarantee safe operation of boilers;? intelligent integration operation control system, with touch-screen operation Dual purely manual control buttons and functions.

ZG boiler produces various food factories oil and gas boilers. There are many kinds of oil and gas boilers used in food production in ZG boiler, wns series fire tube boilers, szs series water tube boilers, and oil and gas power station boilers.