Industrial boilers is a major driving force for social development, but also brought great pressure on the environment. Whether coal-fired boilers, biomass boilers, or, when the supply of energy, the emission of pollutants will soot and nitrogen oxides. Some enterprises in order to save costs, the pursuit of more profits, but also allowed to change the fuel, biomass boilers burning coal steal, wood, and even garbage doping or other industrial waste, produce dioxins and other carcinogens directly into the atmosphere after combustion, pushing PM2.5 concentrations.
Since started Blue Sky Battle horn Guangdong Province, many cities have begun to respond positively, Dongguan City, is one of them. Atmospheric do in-depth business thoroughly, and the development of industrial boilers business accounting, confirming the city's need to eliminate highly polluting boilers have 765 units, of which 728 sets of biomass boilers, 37 coal-fired boilers. Subsequently, promote the transformation of facilities operations out of high pollution boilers within the city.
As of May 14, 2019, the city's 324 enterprises active removal of 363 coal-fired boilers burning biomass, as well as 83 to 84 companies demolition of the old boiler pipes, 447 completed phase-out plan of the boiler in advance.
Although there are many companies take the initiative to carry the main responsibility for the ecological environment, but there are still some chances enterprise.
Atmospheric Office official admitted that "in the daily inspection, the company found that some still illegal use of boilers, perfunctory 'coal to gas' work." Among them, although some enterprises written off coal, biomass fired boilers, but because of natural gas boiler installation behind schedule, forced production needs, but to let the old boiler continues posts. There are companies more "capricious", install two-way pipeline for new and old boilers, strict supervision when using gas-fired, law enforcement officers continue to take a coal burning biomass. There are even companies deliberately delayed "from coal to gas," progress, choose to enable the original write-off of the boiler.
This year, the Office of Atmospheric inspection personnel to go to 244 companies in the field to check the boiler usage, found that 42 enterprises there is illegal use of boiler problems. Among them, there are 18 companies of illegal use of biomass boilers has been canceled. "Not only pollute the atmosphere, there are still significant safety risks." Atmospheric Office inspection personnel Lurui Quan said, "the city's coal-fired, burning biomass boilers as well as 113 units, involving 94 companies, is expected to complete phase-out year, access to clean energy. "simple behind the data, there is a thick ledger out of the transformation of the boiler," when removed, when write-off, out of a pin number one glance. "
Atmospheric Office official also said the recent city towns Street (Park) Atmospheric Office will carry out investigation and remediation special action has been canceled boiler, supervise and guide enterprises to demolish the old boilers and pipes, put an end to "note not sell" phenomenon. At the same time, urge enterprises will have been dismantled boiler dedicated to the sale of scrap recycling company, effective way to solve the old boiler, complete eradication of pollution and safety hazards.
When the amount of steam used is small, the remaining steam is put into the container through the nozzle, so that the water temperature and pressure in the accumulator are gradually increased until the saturation temperature at the rated pressure to complete the storage of heat energy. When the steam usage increases, the steam is supplied by the accumulator, and the pressure in the accumulator decreases. The working pressure of the accumulator is limited by the pressure of the boiler. When there is a great difference between the rated pressure and the steam pressure of the boiler, there is more steam produced by the unit volume of the accumulator, and the economic benefit of using the accumulator is high. When using the heat accumulator, the boiler with higher working pressure should be selected, and the steam department should be divided according to the different pressure, and the steam pipeline should be arranged respectively. Improve the economic performance of the heat accumulator.
Two tons wns horizontal boiler how much the price of the current use of horizontal boiler is still very extensive. Basically 10 tons of basic boiler is mostly horizontal, so the need for the procurement of boilers companies, then he should want to buy for their own products have a certain understanding, this is the case, select the boiler products is more appropriate for their business. Recently, there is a business to be fast boiler boiler advice to the purchase price of a wns horizontal, but the company is currently required for the tonnage is not very understanding, so that the number of procurement for causing the tonnage is No guarantee, so for enterprises, it is necessary to conduct detailed data to a professional boiler manufacturer's technical staff a. In this regard, after the fast boiler technician accounting, the company concluded with a two tons of wns horizontal boiler is to meet the production, the price of the current model of boiler is around 250,000, so the company for two t wns horizontal boiler prices have detailed understanding.
(4) Horizontal combustion WN (the horizontal) (5) Horizontal combustion WW of (lying outside) (6) horizontal heat pipe WR (horizontal hot) water tube boiler vertical single drum DL (stand-alone) single-drum longitudinal mounted the DZ (single-longitudinal) single drum transverse formula DH (single transverse) double drum vertical type SZ (double vertical) horizontal type double drum SH (double cross) rows of stationary furnace G (solid) activity grate hand H ( live) feed grate A (down) the chain grate L (chain) reciprocating grate W (to) pumping plate lifting furnace C (pumping) chamber burners S (chamber) gas furnaces half B (semi) boiling furnace F ( boiling) 4, boiler pressure applications because unpressurized pressure hot water boiler, so to link with the atmosphere, and the temperature should not exceed 100 ℃. The main areas of use: place heating, bathroom, nursery, electroplating, chemical without high temperature (higher than 100 deg.] C) of. However, once the system layout is unreasonable, without the openings communicating with the atmosphere communicating pipe or valve blockage or installed, it will cause pressure hot water boiler, having a certain degree of risk. 5, pressure boiler water quality: Water pressure boiler required to follow "industrial boiler water quality standards," specific requirements as follows: 6, 7 of the main parameters of the boiler pressure, the boiler operating temperature and pressure: The "small pressure and hot water boiler safety monitoring requirements "in the relevant regulations, the atmospheric outlet of the water heater temperature should not exceed 85 ℃, the return water temperature of 60 ℃. Low pressure type water temperature can not exceed to 95 ℃, return water temperature is 70 ℃? Because in security considerations, to prevent heating of the hot water temperature is too high so as gasification, the system will affect the circulating pump running, the system pressure rise; and if failure or insensitive because the thermometer is not allowed to set the temperature are likely to cause system overpressure thus a security risk. Pressure hot water boiler thermometer scale used rated water temperature of 1.5 to 2 times the rated water temperature and the temperature difference between nominal water temperature not more than 20 ℃.
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