Why gas steam horizontal 4 ton water tube boiler energy saving may be why gas steam boiler energy saving gas steam boiler design pressure should be slightly higher than the high work pressure, and not less than safety valve opening pressure. Design pressure gas furnace using 1.2 to 1.5 times the working pressure; liquid pressure furnace design should take pressure of 1.05 to 1.2 times; Liquid furnace gas and steam outlet pressure differential should be greater than 0.15MPa (1.5kgf / cm2). Temperature gas steam boiler import and export, from the design of both economic and security point of view, to design gas-steam to run a suitable temperature difference in the system, this temperature difference should be less than 30 ℃. Gas steam boiler is a closed loop, the return oil temperature and oil temperature only a 20-30, 20-30 words, only heating the temperature difference can reach temperature gas steam boiler. The steam boiler is added to cold water, the cold water is heated into steam to heat heating device, steam becomes condensed water discharged 60-70 degrees. Therefore, the role of energy saving functions!
In order to promote technological progress and sustainable development, improve environmental quality and protect public health, recently, the Liaoning Provincial People's Government of air pollutants for coal-fired power plants developed specific criteria (hereinafter referred to as the "standard"). This is the first time a set of policies Liaoning Province for air pollutant coal power plant.
"Standard" provides for pollutant discharge limits, surveillance and monitoring requirements within the jurisdiction of coal-fired power plant in Liaoning Province atmospheric and fugitive emissions control requirements. Since the implementation of the standards, air pollutant emissions coal-fired power plants all within the jurisdiction of Liaoning Province will be executed in accordance with the provisions of this standard.
2, since January 1, 2019, the emission limits of existing single output and more than 300MW generating units supporting the provision of a coal-fired power generation boilers execution table.
3, since 1 December 2020, the emission limits of existing single output 300MW generating units supporting the coal-fired power generation boilers and other power boilers as specified in Table 1 execution.
Sampling the exhaust gas (1) power plant, to be carried out in a predetermined position in accordance with the type of monitor emissions monitoring contaminants. In the discharge of pollutants should be set up to monitor the position of long-term monitoring holes, sampling platform and related facilities. When the sampling platform height from the ground greater than 40m, should be set by a lift platforms, lifts or other convenient and safe facilities. No elevator or elevator building coal-fired power plants, when the sampling platform height from the ground greater than 20m, should be set up safe, convenient electric monitoring equipment hoisting facilities.
Composition structure (3) continuous monitoring system atmospheric pollutants, technical requirements, test items, test methods and installation, commissioning, acceptance, operation management, data processing, etc. according to the provisions of HJ75 and HJ76.
(5) continuous monitoring system meter of air pollutants detection sensitivity, detection limit, and should meet the range of low concentrations of pollutant emission monitoring technical requirements, the concentration of nitrogen oxides include nitric oxide (NO) and nitrogen dioxide (of NO2), Determination of nitric oxide only has the ability to configure the analytical device of nitrogen oxides NO2 / NO converter.
(7) for coal-fired power boiler emissions of air pollutants sampling monitoring, sampling frequency, the sampling time and the operating load requirements,, HJ / T397 and related predetermined low exhaust gas concentration monitoring is performed according to specifications GB / T16157.
(9) shall be in accordance with the provisions of the enterprise "Environmental Monitoring and Management Measures" and the HJ819, HJ820 requirements of pollutant emissions and its impact on environmental quality around to conduct their own surveillance, monitoring and save the original records, public information.
Determination of air pollutants fired power plant analysis are shown in Table 2. After the release of the present embodiment national standard method of monitoring criteria pollutants, such as applicability to meet the requirements, the same applies to the determination of the corresponding standard contaminants present.
2, responsible for overseeing the management of this standard by the executive authorities and the standardization of administrative departments above the county level environmental protection. The results of the environmental protection departments at all levels and other relevant units in the enterprise supervision and checks can be instantly sampled or monitored the scene as determining whether acts of sewage meet emissions standards based on the relevant environmental protection and the implementation of management measures.
Five gas hot water horizontal 4 ton water tube boiler system consisting of a profile, the control system: microcomputer controller for hot water boiler configuration, large-screen full Chinese LCD screen with bright backlight, day or night, the boiler operating state is clearly visible. Display complete: circulating pump, the operation of the burner, the boiler water temperature, water level, the current time, alarm records, ranging boiler operating state; easy setup: the boiler power, the operator can freely enter key 6 when operating parameters for the standby state (set) into the operating state (power on), the state out of operation (stop), the random standby state is set; functional: arbitrarily set the current time, alarm temperature, the maximum temperature of water, The lower limit of water temperature, the temperature of the circulation pump is turned on, the circulation pump shutdown temperature, the boiler switch time (divided into four time periods) and other operating parameters. The operator usually just press the start key to boot, press the stop button to stop, very simple. Second, the combustion system: imported burner, automatic programmed control, automatic purge blower, electronic auto-ignition, spontaneous combustion and gas, (air) to automatically adjust the proportion of oil wind, good atomization, combustion, energy saving, It has flameout protection device to ensure safe combustion. Under normal circumstances, the combustor output temperature of the boiler with the combustion flame length is automatically adjusted, the outlet temperature of the boiler reaches the set value, the burner combustion is automatically stopped, when the temperature is below the set value, the burner is automatically started. When the abnormal phenomenon of the fuel, air intake, fault lights, the output sequencer will immediately stop the fuel, burner shut down automatically. Third, the boiler: boiler structure according to the design pressure, provided through the top of the large pores, the boiler operates at atmospheric pressure, away from the danger of explosion; boiler furnace using computer simulation to optimize the design, the size of the boiler is fully optimized, so that coordination aesthetic form . Vertical CLHS mounted boiler combustion at the burner, the fuel is combusted within a slight positive pressure furnace, the flue gas temperature in the furnace radiation heat transfer, convective heat transfer and then enter the pyrotechnics, smoke box is discharged through the last. Smoke tube baffle is inserted, the smoke evacuation slow speed, heat strengthening, fuel combustion furnace to ensure the greatest degree of heat generated water, greatly improve the thermal efficiency of the boiler; CWNS horizontal boiler with full wet back three return structure, the flue gas flow length, reduced exhaust gas temperature, the whole corrugated furnace provided, so that the flame produced a strong turbulence to improve the heat transfer coefficient strength, and effectively prevent the metal due to thermal expansion and contraction result in reduced equipment life; large-diameter cigarette tube and macropores bridge the gap, the boiler at equal time scale coating thin and easy to clean. Fourth, multiple protection: boiler has multiple security: the drain leakage protection that is automatically cut off power; i.e. overheat protection boiler water temperature reaches ultrahigh temperature alarm, automatic stop and alarm the burner; i.e., protection of the secondary superheater boiler housing temperature exceeds 105 ℃ when, automatically cut off the secondary circuit, the boiler stopped working; anti-dry protection water level electrode bar that is well-real-time monitoring water level, for other reasons boiler water level reached below the water level is very low, the boiler stops working, to prevent the occurrence of dangerous dry. Five: Packing Insulation: white color board packaging, nice, closed Haonai corrosion, mechatronics, small footprint, and easy to use. Glass wool insulation for whole body type, light weight, good thermal insulation effect, and less heat loss.
Check before 1 hot water horizontal 4 ton water tube boiler operation, including the use of internal inspection and boiler ready. 2, stove and flue inspection, stove and chimney soot and debris should be removed. Gas hot water boiler with environmental protection, energy conservation, safety, salient features fully automatic operation, and ease of use. In addition, due to the operation of the economy, government policies to encourage, gas hot water boiler more and more people of all ages. To adjust the door and the flue duct, the door must be complete and tight, the switch must be flexible, open and close indication must be accurate. 3, boiler accessories conduct inspections of safety accessories in good condition; if the plug rotating flexible, convenient; all kinds of instruments and controls should be complete, good, clean. After examination by the pressure gauge cocks should be in working condition. 4, check Zidongkongzhi system. Biomass boiler categories: biomass boilers Horizontal, vertical biomass boilers. Biomass gas thermal oil heaters, biomass steam boiler, biomass hot water boiler, biomass oil furnace. 5, check the auxiliary equipment. Steam boiler is an energy conversion device, the energy input to the boiler fuel chemical energy, electrical energy, thermal energy and other forms of high temperature flue gas, and after converting the boiler, the steam output having a certain outside thermal energy, high-temperature hot water or an organic carrier. 6, the combustion device checks to see if the combustion device is in good condition; for mechanical transmission, coal handling system, ballast system, steering normal test; safety spring gearbox lubrication should be properly compacted and; Crosscut indicate the correct scale. Iron Eagle neatly intact, complete ballast plate, flexible movement. 7, the auxiliary heating surface inspection, check the auxiliary device (fan, water pump, etc.) is firmly connected to the coupling; v-belts suitably loose; good enough lubricating oil; cooling water flow. After the check, the safety shield is mounted, a separate test run, the idle current note.[email protected]
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