Gas boiler precautions required during installation methods, or steps :( a) a foundation base of the boiler should be provided is determined according to the local soil, manufacturers design reference by the civil sector again. After reaching the base strength boiler, the boiler should drawings inspection and acceptance, and to draw the whole boiler three reference lines: a, longitudinal reference line - drum center or the center of the combustion apparatus. b, lateral reference line - the center of the front axle or chain grate slag centerline of the machine. C, elevation reference line - can be selected from a number of locations about four weeks, respectively, on the basis of the marking, the relative offset between the markers should not exceed 1mm. Furnace in place. After assembly the lower part of the boiler in place first, then the upper assembly large, the upper and lower portions need to find a combination of two positive pads firmly, should be both inside and outside the two casting. Installation location and size deviation test methods according to GB50273 "boiler installation engineering construction and acceptance" implementation. (B) lifting the boiler, during lifting, should be suspended on a lifting lug drum boiler ready large, the boiler on a foundation base coincides with the pre-drawn reference line. The longitudinal centerline of the boiler and the foundation, the deviation is not more than 3 mm, and the inclination with the center line of the drum hammer correction, allowing the central drum inclination is not larger than 5 mm, otherwise use horns foundation base and the junction pad level. Maximum level (c) Installation of boiler network (1), water supply conduit installation requirements typically require as backup pool below the normal water level line of the boiler, so as not to shutdown, boiler feedwater flowing into a large number of drainage caused to start the next . At the outlet of the tank (i.e., an inlet feed line) should be installed wire screen. (2), a main steam line installation requires the main steam lead pipe straight run section should be more than 0.5 m, the bending radius should be 4-5 times the diameter of the pipe, the trap should be fitted at the lowest line in order to prevent water hammer pipe, while to be reliable insulation. (3), the safety valve should be installed in the valve installation requirements after the hydrostatic test, the safety valve shall be fitted exhaust pipe, the exhaust pipe of the safety guide outside the boiler house, allowed valving the exhaust pipe. (4), mounting a lower water table level table downcomer must access a safe place, Hancock rotating flexible water table, not leaking, water table must be installed to the lighting device, easy to observe. (5), a pressure gauge mounting means so that when the scale gauge vertical plates, should be painted red gauge scale to show the maximum allowable pressure boiler, rotating flexible plug gauge, not leaking, water flow, pressure gauges insulation prohibited. (Iv) the boiler chimney installation requirements, when lifting the chimney, the chimney should be straight, horizontal direction lead length should not be too long, generally less than 5 meters, the height of the chimney should comply with relevant national standards. To add chimney rain cap, the weight of the chimney should not fall directly on the boiler chimney take over the host. Installation (e) combustion system: 1, according to the combustion system of FIG power line control circuit, a control signal line and the control line is electrically connected, the program should be installed reliable ignition and flame failure protection devices. Combustion process controller provides a separate set of contact start-stop control. May be formulated in a variety of burner start-stop loop cascade control relay 10A is a fuse, relay start-stop control stops the control terminal may be connected to the burner, may directly control the power of the burner. Both constant pressure sensor, water power, fuel, gas pressure set value is detected after the automatic controller opens. Time pressure sensor, water supply, oil, gas, and their detection circuit, alarm and found the problem immediately shutdown flame protection, the controller automatically displays the point of failure, an alarm sounds machine.
Henan gas boiler tube leak detection device alarm Fault Henan furnace gas boiler tube leak detection device can be checked promptly internal gas boiler heating surface Henan leak case, can effectively protect other heating surface tube row, ensure the safe operation of the economic unit. 1. Symptom: (1) one side surface of the entire heating furnace tube leak detection alarm device. (2) concentration of several parts tube leak detection alarm device. 2. Analysis: (1) Henan compressed gas pipeline leak around the boiler emits different sounds. (2) sootblower valve lift Jam, steam leakage. (3) heating surface tube bank or weld leak squib. 3. Treatment: (1) contact electric inspection personnel. (2) no abnormal sound in Henan gas boiler furnace, whether near the flange of the compressed air line check alarm leak detection means has tube leaks and timely manner. (3) Check the tube near the sootblower alarm if a valve lift leakage detecting means there are leaks and timely manner. (4) such as opening hole to see the fire, obviously abnormal sound in the gas boiler furnace Henan, Henan description gas boiler tube leakage indeed, organizers prepare repair. 4. precautions: (1) strengthen inspection. (2) Electric regularly cleaned and checked Henan gas boiler tube leak detection means. (3) make Henan gas boiler tube leak repairs should be tight plan.
To better implement the important speech on the 30th anniversary of the General Assembly Special Economic Zone Xi Jinping, General Secretary Xi Jinping and ecological civilization idea of celebrating to do in Hainan Province, fully implement the "CPC Central Committee and State Council guidance on the full support of Hainan, deepening reform and opening," "CCP central State Council on the overall strengthening of environmental protection and resolutely fight pollution prevention campaign of view "and the spirit of the national Assembly ecological and environmental protection, pollution prevention and resolutely fight tough fight, to promote the construction of national ecological civilization pilot area to ensure the quality of the ecological environment of Hainan can only be more well, not worse, now combined with the actual circumstances of this action.
1, by 2020, the proportion of clean energy installed capacity of more than 60%, to promote low-carbon clean energy priority access. Daly implementation of the "cut cut coal oil" to prohibit new coal, phased out of existing coal-fired units. Before the end of 2020, the province basically eliminated 35 tons of steam / hour and coal-fired boilers.
2, all cities and counties to complete the "high-pollution fuel combustion zone ban" before the end of June 2019 delineation and adjustment. In the combustion zone ban, prohibit the sale, burning polluting fuels. Within the province burning petroleum coke is prohibited. Oil coal quality sampling to establish a regular mechanism.
3, to carry out comprehensive improvement of industrial furnaces, phasing out non-compliance of industrial furnaces, industrial furnace to promote the use of electricity, natural gas and other clean energy or central heating.
4, the full implementation of the construction of urban gas engineering, gas propulsion countryside village "gas on behalf of firewood," to build a gas pipeline network covering urban and rural areas. Demand planning and construction of a number of gas-fired generation projects.
5, to promote the transformation of low nitrogen and ultra-low emissions retrofitting existing gas boiler biomass boilers. Low NOx combustion pollution control measures in new clean energy boiler fueled with natural gas should be used.
Fuel gas boiler automatic instrument sets the control means are included which according to the "industrial boilers Complete supply" and provides fuel gas boiler automated instrument packages supply shall include at least the following: (1) evaporation of 4t / h and 4t / h or less boiler 1 ) detection. Water gauge, vapor pressure gauges (including saturated and superheated), water pressure gauge, water thermometer, thermometer smoke, steam flow rate calculation (including less than evaporation lt / h boiler). Oil temperature, oil pressure, oil level indication, calculates fuel (gas boiler as temperature, pressure, gas), furnace exit gas temperature indication. Evaporation of 4t / h boiler flue gas oxygen content should have, furnace pressure, temperature economizer export indication. 2) regulation. Position of formula (only for non-economizer of the boiler) or continuous feedwater automatic control, automatic adjustment of a combustion boiler the combustion of heavy oil should automatically adjust the oil temperature, air pressure gas boiler there should be automatically adjusted. 3) alarm and protection. High and low water level indication and alarm, low water level limit protection, over-pressure steam indication, alarm and protection, flame protection furnace, fuel gas overpressure protection or low temperature alarm and protection. 4) Other. Auxiliary electrical control box, gas boilers should be equipped with explosion-proof electrical control equipment. (2) evaporation of 6t / h and above 6t / h boiler 1) detected. Water gauge, vapor pressure gauges (including superheated saturated), water pressure gauge, water thermometer, thermometer, smoke, water, steam pressure, water pressure indicator, calculated water flow, steam flow indication, recording and computing, oil temperature, oil pressure, oil level indication, indication and calculating the amount of oil (gas boiler as temperature, pressure, gas), economizer inlet and outlet water temperature indication, furnace exit gas temperature, exhaust gas temperature, air pressure, furnace pressure indication, Sheng Mei an inlet, an outlet indicated negative, indicating flue gas oxygen content, there is an outlet air temperature should be indicative of the boiler air preheater, the boiler superheater, there should be recorded and the superheated steam temperature indication. 2) regulation. Continuous automatic adjustment of water supply, drum, induced draft fan damper flap opening remote control, remote pump control valve (an intake gas boiler control valve), a heavy oil combustion boiler should automatically adjust the oil, gas boiler should automatically adjust the air pressure, there is superheater boiler there should automatically adjust the temperature of superheated steam. 3) alarm and protection. High and low water level indication and alarm, low water level limit protection, over voltage protection and alarm indication of heart steam, oil accident alarm system, furnace flame protection, fuel gas overpressure protection or low temperature alarm and protection. Boiler superheater should have more limited temperature of superheated steam and an alarm indication. 4) control and the other. Drums, Fan, and start and stop the pump interlock control program, drum, fan baffle opening damper indicated, shall be provided with explosion-gas boiler electrical control equipment.
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