China Hot Price gas Fired Hot Water Boiler
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.
Nine china hot price fired hot water boiler technical characteristics of electric water boiler 1, the hot water boiler electric water boiler hot water boiler microcomputer controller, the built-in backlight in the LCD screen display, operating status of the boiler clearly visible. All operations are easily accomplished by simply buttons, super boiler display controller, the control function is complete. 2, a ceramic tubular electric heating hot water boiler uses water and electricity separation electrical heating mode, the complete separation of the tubes and electric heating boiler water, boiler safe and convenient maintenance, replacement of a heating tube; stainless steel tube electric heating type hot water boiler implementation immersion electrical heating, water heating furnace, high efficiency, and the heating furnace tube flange connection, easy to clean, replace them. 3, the user can arbitrarily set the temperature between 30 ℃ -90 ℃, the boiler in accordance with user requirements timing, temperature, or automatic circulation heating system to provide users with a bath heating, domestic hot water. 4, high-power stepping boiler heating control law input sharing group, the group can be randomly put into or heating is stopped according to the load variation, and significantly reduce the impact on power. You can also manually start and stop the heating section number, user side to adjust the power boiler itself. 5, the control system controls the circulation pump start and stop in accordance with the temperature of boiler water. Hot water circulating pump is stopped when the furnace temperature reaches an upper limit, below the hot water circulation pump start lower limit temperature. 6, bath, living with the embalmed internal hot water boiler, furnace rust corrosion, long service life of the boiler, hot water, clean water, sanitation. High centrifugation using glass fiber cotton multilayer insulation, heat loss, energy saving; famous white color board packaged, elegant appearance corrosion resistance. 7, the boiler having a leakage protection function (power supply control system detects electrical leakage, automatically cut off the power boiler), anti-dry protection low water level (the water level is below the minimum limit of the level set immediately stop and alarm), the furnace overheating protection function (start when the boiler shell temperature exceeds 105 deg.] C, immediately shut down and an alarm, the temperature of the normal automatic boiler), the temperature sensor protection function (control system keeps detecting sensor condition, stop immediately and alarm), the power supply voltage protection function (when the power supply is abnormal, the automatic power-off. after the normal, automatic recovery operation), the heating assembly phase protection function (monitoring phase after heating assembly, shutdown protection). 8, the top of this boiler has a vent to the atmosphere, the interior is not under pressure, boiler work at atmospheric pressure, there is no risk of explosion, the complete elimination of security risks. 9, a back outlet symmetrical design (double inlet) for quick connection installation; boiler mechanical and electrical integration, compact size and reasonable transportation is very convenient. When natural gas steam boiler for emergency shutdown? Emergency shutdown is an emergency action to take when natural gas steam boiler accident, in order to prevent the accident from being taken. When the boiler in operation, any of the following circumstances, should immediately shutdown: ① boiler water level below the lower edge of the visible water table, increasing water supply and other measures, but the water level continued to decline; ② boiler water level exceeds the maximum visible water level (full of water), the water drainage can not be seen; ③ all fail to pump failure or water supply system, not water to the boiler; ④ water gauge or all of valve failure; ⑤ boiler element damaged, thereby endangering the safety of operating personnel; ⑥ other unusual circumstances endanger the safe operation of the boiler. In case of power, water supply and other emergency situations should take timely measures. If not solved, it should be promptly reported to the company. Prohibited under pressure boiler water temperature or higher, the repair of boiler pressure element, to prevent the steam, the water discharge was wounded. Under repair equipment, to hang warning signs. Electrical equipment repair, electrical work should be carried out staff. If in vapor, flange and pipe joints, safety, staffing holes and inspection visits to check the hole, etc., should not be in front, but should side. The operation should wear protective gloves to prevent burns. The operator should make regular automatic (at least once every three months) and manual exhaust (at least once a week) to check and ensure that sensitive and reliable safety valve.
Different natural gas steam boiler energy-saving measures as well as gas-fired boiler with environmental issues become more critical, more and more people are concerned about the importance of the environment for our development. Today, gas steam boilers in industrial production is very common, how to reduce the energy consumption of gas steam boilers, which we have been explored. We can take the following measures in natural gas steam boiler operation for energy. 1, the amount of steam needed for industrial production of a reasonable choice, and the number of the rated power station boiler steam boiler gas, in both cases the higher the degree of matching with the actual exhaust gas loss is smaller, the obvious energy saving. 2, the fuel in contact with air: fuel amount so that an appropriate amount of air and the optimum composition ratio of combustion, this would both improve fuel combustion efficiency and reducing emissions of polluting gases, energy to achieve the dual goals. 3, reducing the temperature of the exhaust gas steam boiler: the temperature of the boiler flue gas to reduce the effective use of exhaust heat generated in general, the efficiency of the boiler used is 85-88%, the exhaust gas temperature is 220-230 ℃. If the setting of energy-using the exhaust heat or the like, the exhaust gas temperature falls to 140-150 deg.] C, the boiler efficiency can be increased to 90-93%. 4, recycle heat from the boiler blowdown water: water using continuous blowdown heat by heat exchange, in addition to improving water temperature itching water to achieve energy saving gas steam boiler. At the same time, measures energy-saving gas steam boiler can also be reasonably recovered condensate heating system, and the heat of the condensate water recycling. It is different from the gas boiler and gas boiler: 1. Gas circulating fluidized bed combustion boiler coal by crushing device by the belt into the coal bin, by using multicast coal stoker wind, thrown into the furnace; circulating ash by heating, fluidized combustion process. After coal to gas and coke oven gas and purge gas mixed together by the four burners directly injected into the combustor. 2. Combustion of Coal is mainly composed of water and ash content and the elements C, H, O, N, S etc., the heat released by combustion of coal to produce SO2, SO3, NOx ash and moisture, and SO2, SO3, NOx discharged from the flue gas the atmosphere, pollute the environment, cause harm to humans. And the main component of coke oven gas and purge gas are CO and H2, after combustion, produce mainly CO2 and H2O, SO2 emissions relative gas boiler gas boiler, SO3, NOx is much less. 3. Usually ventilation negative pressure combustion gas boiler, the combustion process is to group together to complete the mating with the mating blower and induced draft fan, the coal combustion process, requires a lot of air and the furnace wall due to the leakage of the flue, the excess air coefficient of up to between 2.1-2.5. Gas boiler combustion slightly positive or slightly negative pressure, a small amount of wind required, air is preferably premixed with the gas within the combustor. No leakage factor positive pressure combustion flue and the furnace wall, the flue outlet air ratio operation may 1.05-1.2.4. Fuel explosive gas boiler combustion safety, the furnace explosion hazard unlikely to occur. The gas-fired boiler in the explosive concentration limits encountered fire will explode. More dangerous. 5. Gas boiler control difficult due to coal boiler, material thickness, amount of the blowing, the amount of the wind, the wind mixture ratio of coal and other reasons, to be automatically adjusted according to the operating parameters of the boiler load is large. Less impact on the factors of the gas boiler, the burner may be adjusted according to the size of the load valve, easy to achieve automatic control.
The United States is our national enterprise, one of the world's top 500, with very bright glory on the world stage. US air-conditioning as a subsidiary branch, with a very large market competitiveness. 2016, Hubei US air-conditioning due to market demand to expand production lines, need to purchase steam boiler to provide energy support for the new production line. After the boiler industry for a number of enterprises contrast, is determined to cooperate with the fast boiler, buy a whole 10 tons of steam condensing gas steam boiler (WNS10-1.25-Y.Q).