The WNS boiler produced by ZG boiler is a oil and gas boiler, which can be divided into WNS oil and gas hot water boilers and WNS oil and gas steam boilers, and is also a well-developed hot boiler by ZG boiler. The technical features of this boiler are as follows:
1. The WNS oil and gas boiler adopts a large-volume combustion chamber design, so that the fuel is fully burned and the flame fullness is good. Good for low-nitrogen combustion of fuels and low nitrogen emissions from flue gas.
2. The WNS oil and gas boiler uses an automatic low nitrogen burner + flue gas recirculation system (FGR) system to achieve ultra-low nitrogen emissions.
3. The WNS oil and gas boiler adopt advanced wave furnace structure, which not only increases the heat transfer area, but also satisfies the free expansion of the furnace after heating. At the same time, the waveform furnace structure enhances the disturbance of the flue gas and enhances heat transfer and combustion.
4. The rear of the boiler body is equipped with an energy saver and a condenser, which can effectively reduce the temperature of the exhaust gas and improve the overall thermal efficiency of the boiler. The condenser adopts "low temperature corrosion resistant" special steel to greatly increase the service life.
5. The oil and gas boiler adopts a wet-back structure and full-flanged butt welds with high reliability and low maintenance costs.
6. The use of threaded tobacco pipes in the WNS oil and gas boiler is beneficial to enhance airflow disturbance and enhance heat transfer.
7. The WNS oil and gas boiler outer packaging adopts color pattern board, mirror stainless steel or matt stainless steel board in three forms, beautiful and generous.
8. Automatic operation of the WNS oil and gas boiler, micro-positive pressure combustion, no need to draw fan, reduce boiler system investment, reduce boiler operating costs.
9. The WNS oil and gas boiler equipped with necessary thermal instruments, valves and various protection devices, to achieve continuous electric water regulation, automatic water level control and high and low water level alarm, low water level chain protection and other functions, automatic control of steam pressure and overpressure alarm and other functions.
For a long time, the boiler and burner are attributed to two different sectors each R & D re-combination, but the overall performance of the gas boiler, there is a qualitative impact. Fang fast R & D team after two years, estimates adjusted 300 times, breaking the status quo burner and boiler production separate, optimized depth coupled combustion system and heat transfer system architecture, combined boiler and combustion system, combustion system and successfully developed the depth of the heat transfer system coupled "Euromonitor θ5", so that gas-fired boiler into a complete energy system, to achieve a qualitative leap. "Euromonitor θ5" additional air pre-heater, cold air through the heat exchange tubes and the body opening for the flue gas countercurrent heat exchanger, the exhaust gas temperature is lowered while saving fuel; using a condenser, economizer flue gas heat recovery, thermal efficiency of the boiler can be increased by 10%; the use of FGR flue Gas recycling technology and Ultraten wing technology, improve heat transfer efficiency, emissions of nitrogen oxides emissions standards in line with domestic cities.
Environmental Protection measures of Environmental Protection BoilerEnergy-saving and high-efficiency atmospheric pressure environmental protection boiler can convert black smoke into gas combustion and save coal consumption. The atmospheric pressure environmental protection boiler has double-layer grate and two combustors. If the coal in the upper combustion chamber does not burn well, it can continue to burn in the lower combustor. At the same time, the primary air, secondary air, fuel can give enough oxygen to fully burn. According to the comparison of users' field use, it can save about 30% and 50% compared with the similar big bituminous coal boiler and briquette boiler, etc. The environmental protection standard atmospheric pressure environmental protection boiler can burn all kinds of bituminous coal, and can turn the black smoke into the gas combustion rapidly, the smoke pipe will not emit black smoke, purify the fine dust and the oxygen Sulfur, after monitoring, all indicators meet the national environmental standards. The steel plate of the atmospheric pressure boiler of reliable quality is made of the national standard steel plate, the material is Q235A, Q235B, the international seamless steel pipe, the material is 20, GB3087, GB8163, the production material and the manufacture craft are carried out strictly according to the national standard. After testing, each index also reached the national standard. The operation safety atmospheric pressure environmental protection boiler structure is very compact, the occupation area is also small, the upper temperature is fast, is no pressure operation, safe and reliable. Environmental protection pressure 3 ton steam boiler use for winery equipped with a number of safety protection devices, exceeding the pressure, safety valve automatically opened Exhaust steam to ensure safe operation.
Gas boiler szs 1 emergency shutdown procedures, if necessary emergency shutdown generally, when the boiler encounters one of the following, operation should be stopped in case of emergency; (1) allow the boiler steam pressure exceeds a safe pressure, fueling is stopped strengthen water supply, measures the wind pressure continues to rise. (2) boiler severe water shortages. Water meter can not see the water level. After being called water, the water level of sight. (3) When the severe water boilers, boiler water level is higher than the highest water level is visible, but the emission level not yet seen. (4) increase in boiler water, take other measures, the water level will continue to decline. (5) water supply device is turned off, standby equipment. (6) all water level gauge or invalid. (7) All the safety valve all the failures. (8) All all-off failure drain valve. (9) causing damage to the boiler pressure element (e.g., boiler tubes, etc.), or endanger the safety of the device. (10) boiler is a serious threat to other events and safety equipment. 2, natural gas boiler operation method szs immediate emergency stop operation of the controller, the boiler is off, closing the front of the boiler gas valve to stop the gas supply. The 3 ton steam boiler use for winery competent completely separated, opening the exhaust air valve or safety valve steam pressure. Due to lack of water, the boiler is not allowed into the boiler, the steam is not discharged to reduce pressure. No shortage of water, cold water can drain down alternate method, the water level remains complete accident should immediately stop the water supply, water reducing combustion (fire artificially changed into a small fire), play an open valve while opening the main steam pipe and the drain valve cylinder to prevent the steam to carry large amounts of water, water. In the shutdown process, the cooling rate of the furnace should not be too fast to avoid flue compression member and the expander is damaged suddenly cooled. 3, emergency shutdown processing method szs natural gas boiler in the case of emergency shutdown, due to the nature of the accident, the following may take a different approach: (1) rapid flame treatment emergency shutdown, the burner first station, and closing the valve flame gas supply is stopped after the cut valve, to maintain the water level is normal. (2) rapidly cooling the furnace or water if there is no water leakage during an emergency stop, the cooling time can be shortened to the boiler water and sanitation and reduce the pressure. When the boiler water temperature down to 80 degrees Celsius, boiler water can be discharged. If the boiler severe water shortages, the boiler can not cool quickly in the event of an outage. Non-water to the furnace, or explode. accident. (B) natural gas boiler shutdown SZS normal shutdown (complete shutdown, shutdown maintenance) procedures which can be used when needed repair or stop steam boiler. 1. If one of these faults, the leaders agreed, the boiler can be temporarily closed repair: bilge faucets, riveted joints leak, damaged tubes, the waterwall tubes, the heating tube, the flue gas contacts the drum, the head, off pipe insulation, water supply system, combustion system, a serious fail-safe accessories, in need of repair. 2, a temporary repair (or normal shutdown) the method of operation in order to stop the burner, for closing the valve. Boiler feed water to 2cm above the normal water level, to stop water supply, reduce the pressure. 3. Turn the main steam valve, open the traps, and steam boiler operation, reliable water separator. 4, boiler feed water close electric valve and manual valve, boiler feedwater reliable cutting. When the steam pressure drops to zero, the water can be supplied and discharged alternately, so that water is gradually cooled furnace, when the temperature drops to 50 degrees Celsius (or hand potshell touch feeling hot pan head), can be completely discharging furnace boiler water water . Before water, open the air valve on the boiler or lift safety valve. At this point, you can enter the furnace for inspection and repair. Cooling the furnace must be kept slow, non-violent cooling and damage to the boiler, the boiler can be stopped from the repair into the furnace, the cooling time is generally less than 24 hours. Close the furnace over 24 hours, shut off the gas supply valve at the regulator, and open the gas conduit pipe is responsible, in the exhaust gas pipeline.
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