When the boiler model selection, the number of users of the construction area, the average height of each frame, the radiator, if geothermal (if geothermal, double press area hours calculated, which may be selected from a large area thirds two).
1. The concept of absorption of heat absorption systems using flue gas heat exchanger is used to recover waste heat of flue gas in the gas boiler, the process shown in Figure 1. In additional gas absorption heat pump with the boiler flue gas condensation heat exchanger, an absorption heat pump with natural gas as driving power, the occurrence of cold medium, the medium is cooled in the flue gas in the flue gas condensing heat exchanger, heat transfer process can used direct touch touch-type heat exchanger may direct the exhaust gas temperature in the system drops below the dew point, condensation of water vapor in the flue gas heat to reach the intent of flue gas heat recovery and water. Heat supply network backwater into the primary absorption heat pump is heated, and then into the gas boiler is heated to a temperature of planning to give out, the end of the heating process water heating network. Exhaust gas boiler into the bottom of the chimney, the draft fan is placed on top of flue gas condensation heat is withdrawn and mixed into the flue gas absorption heat pump of flue gas condensation heat exchanger, the system exhaust temperature drops to 30 ℃ vented to the atmosphere into the chimney after less. Out of the chimney flue gas between flue gas and returned to port additional partitions. Our test systems selected direct touch-type touch flue gas condensation heat exchanger. This allows the system to use the skills heating power (system for low level heat than the heat input in the system of gas) progress more than l0%. The skills currently in Beijing General Logistics Department has recovered waste heat boiler room engineering, Beijing bamboo plant to recover waste heat boiler used in the project, to obtain a better energy-saving effect. Such incremental contribution skills (including contribution absorption heat pump, heat exchanger and flue gas condensation supporting pumps, valves and other equipment) generally less able to recover 3a.
2. Mechanism smoke condensate purification of exhaust smoke condensate component of the purification of exhaust components is messy heat and mass transfer process. Condensing the flue gas is flue gas water vapor condenses on the heat exchanger wall or film into fine droplets, and large water drops or fine and then converging streams. In this process, the flue gas condense different components will be dissolved in an aqueous solution, an aqueous solution of the condensation reaction may occur in the flue gas to remove harmful substances such harmful exhaust gas content decreased. NOx in the flue gas purification process condensate: there are nitrogen oxides NO, NO2, N2O, N2O5 etc., a general term NOx. The primary material constituting the atmospheric pollution and photochemical smog is NO, NO2, other ignored. Nitrogen oxides in the boiler flue gas first is NO, and NO2 content less. NO slightly soluble in water, the dissolved amount is negligible. NO2 soluble in water to form aqueous nitric acid and nitrous acid. NO2 is a water-soluble reaction formula: 2NO2 + H2O9HNO3 + HNO2.
Quote boiler boiler number transformation quote how much? At present, many places are making boiler, for the transformation of the boiler is currently being provided in two pieces, one coal-fired boilers to gas boilers, there is a kind of low-nitrogen transformation gas boiler. Currently, the boiler quotes for different forms is certainly not the same. Quotes need to be analyzed in accordance with the actual situation of each enterprise. The first is for a coal-fired boiler to gas-fired boilers, the specific need to see the current situation of the boiler, some coal-fired boilers have no need of transformation. If forced to transform it, one can not guarantee the normal operation, there is a process that is running there will be some risk. So this case, it is recommended that companies purchasing new boilers, since many of the government for coal-fired boiler is also supported. After all, there are still subsidized. Another is the transformation of low nitrogen gas boiler, this kind it is relatively easier, but still looking for their own procurement boiler manufacturers to transform the low nitrogen. After all boiler manufacturers for their own boiler plant parameters of the products is quite familiar with, which is the security needs of security. For the transformation of boilers offer will depend on the specific situation of reform.
Fast boiler has been to uphold the "mold character, and create boutique" business philosophy, after learning of the status of the state forest mountain elementary school, we are non-stop, quickly prepare a large number of teaching supplies, to the mountains in order to improve children's education hardware conditions positive contribution. In order for children to drink purified water clean and sanitary, after the group discussion after deliberation, determined to provide six sets of water purification equipment and pipeline machine. Teachers and students by means of this device can drink safe water purification, we can say that they know how these "water" next to the Red Flag Canal precious. Watching the children line up smiling face after the contact of water, we all feel distressed bursts.[email protected]
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