To protect the economic development of enterprises, production safety running smoothly, according to Qingyang County in Anhui Chizhou municipal government air pollution control requirements, coal-fired boiler inspection pull the plug on a regular basis in October 2018.
Qingyang County Market Supervisory Authority for the county a number of companies were visited research to understand the company's current production operating conditions and problems, start from regulatory functions, for enterprise development to provide quality services, reduce business costs.
Special equipment boiler pressure is high risk, than a regular inspection cycle must immediately stop using, but they are also necessary for the production of business equipment, once the shutdown enterprises will face shutdown. Looking at business owners anxious eyes and counties actively discussing with the city center expert special inspection, and according to regulations, to quickly determine a set of effective programs and promptly inform each enterprise.
Through contact with the surrounding counties and cities to understand the relevant units of the boiler fuel change fees and counties take the initiative and boiler companies approached agreed upon with the use of rehabilitation programs, a significant reduction in transformation costs. Up to now, Qingyang County has completed 12 boiler fuel change work, the cumulative cost of more than 60 million.
Gas-fired boilers are maintained twice a month on a regular basis. Inspection of fuel supply lines: 1. Light oil filter cleaning; 2. Air tightness inspection of ignition gas pipe road; 3. Check to see if the line is clear. b. Inspection of instruments: 1. Water level gauge flushing; 2. Pressure gauge bend flushing; safety valve test. c. Inspection burner: flame detector (electric eye) cleaning light surface; 2. Check whether the working pressure of oil pump is normal; 3. Check that the combustion flame is normal; 4. Check if the burner sound is abnormal when burning; 5. Clean cup disk; 6. Wash some water bars. d. Inspection of intake systems: 1. Cleaning water filtration 2. Whether the pump reaches the rated head and flow rate; 3. Check valve is working properly. e. Daily fuel tank drainage and cleaning debris. Water quality test, furnace water test. f. Check combustion consumption is normal. Maintenance projects every three months in addition to the above inspection items: A. Electrical parts: 1. Whether the line has loose aging, failure; 2. Checking the reliability and overload of electrical components; 3. B. When the soft water tank is not in use, open the low valve to remove the sludge. Testing boiler re-point interlock device: 1. Low water position; 2. Overpressure; 3. Turn off 4. Exhaust temperature Superelevation; etc. Smoke detection: including smoke composition analysis and tail smoke temperature detection, check whether the combustion is working or not. e. Clean boiler body and burner exterior. A. The main body part completely cleans the smoke pipe, water pipe, front and rear smoke box, furnace part and burn-up chamber and smoke pipe ash collection. 1. Fully open the cover to check the sealing integrity of the manhole, etc., and replace the defective gasket in time. 2. Complete inspection of integral instruments, valves, including pressure gauges, pressure controllers and electrode level controllers, and safety valve tuning. b. Burner section: comprehensive Clean burner rotor disc, ignition device, filter, oil pump, motor and impeller system, lube the valve connecting rod. Re-test combustion conditions. c. Control part maintenance and inspection of electrical components, control lines, clean control box ash collection, each control point for inspection. d. Repair water treatment equipment, check water quality, clean soft water tank, check operation and head of feed water pump, clean check valve core, etc.
Note the fuel gas-fired boiler fuel gas pressure when the talk about fire boiler shutdown in accordance with the fuel (electricity, oil, gas) can be divided into electric steam boiler, steam boiler fuel, gas steam boiler three kinds; in accordance with the constitution can be divided into vertical steam boilers, horizontal steam boiler, steam boiler, mostly small and medium sized single, double the return of the vertical structure, large steam boilers and more horizontal structure of three return. The following is a pressure Cautions fire boiler 1 shutdown, shutdown pressure fire more than 6h, main steam valve should be closed after the pressure of the fire over time, open trap superheater outlet header of the superheater to cool. After closing the main steam valve, such as pressure goes up, and can be used at the same time into the sewage Boiler Feed down method. When the recovery boiler operation, subject to step-up and step 2 protection, thermal shutdown during the press pot still steam pressure, it must still pay attention to monitoring, and to allow the boiler to maintain the water level 3, with a cast iron gas boiler province, in after stopping the boiler feed water, the shutter should be closed save flue gas, furnace bypass channel open flap or in the circulation pipe, stopping the gas temperature exceeds a predetermined value within the province 4, the pressure during the shutdown should be appropriate fire sewage, furnace exclude precipitation Care was taken after pressure fire shutdown should not immediately stop the operation of the circulating pump, the network should continue circulating water circulating in the system for some time, when the boiler outlet water temperature dropped to 50oC with the following, in order to stop the operation of the circulating pump
Four advantages pressure hot water boiler pressure hot water boiler as a commonly used heating equipment, widely used in various occasions to people's daily lives has brought great convenience, not only saves a lot of resources and created high economic efficiency at the same time on the market has also been warmly welcomed by many users, and has been in demand ever-increasing trend, while customers adhere to the selection pressure hot water boiler is mainly because of this four technological advances of this type of boiler. A cheap price pressure hot water boiler itself is not high, coupled with the use of natural gas and other fuel prices in recent years also declined, pressure hot water boiler efficiency, so that the selection pressure hot water boiler the lower cost. In addition durability of high pressure hot water boiler and maintenance and it is very simple and convenient, so use better economy. Second, the high pressure hot water boiler efficiency using three layout design process, which is wet-like structure so that the heated area of great pressure hot water boiler, while the flue gas condensation recovery tail can be well controlled high temperatures generated when the exhaust pressure hot water boiler so that the use efficiency of the boiler is improved. Third, the security and stability of good pressure hot water boiler brand manufacturers at the factory is equipped with an alarm system for the boiler temperature, overpressure alarm systems, alarm systems, and leaking water and flame protection systems and other safety accessories, so that pressure hot water boiler safety when stronger, more stable. Fourth, the small size pressure hot water boiler generally uses quick structure, the bottom of the package boiler have adopted extremely rigid material, more compact size more convenient transportation and installation space requirement for the use together with not high in suitable for use in a variety of different environments. These are the four main advantage of pressure hot water boiler, these advantages are also a lot of customers are willing to choose and stick with the main electric hot water boiler heating under pressure. But pressure hot water boiler in actual use requires the operator to be checked regularly timed debugging, for safety near to promptly check its integrity in order to ensure a more secure boiler operation.
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