Large Commercial Boilers

Large Commercial Boilers

What is the role of environmental protection play a condensing large commercial boilers? 1, condensing boiler is a condensing boiler with efficient flue gas condensation waste heat recovery boiler to absorb latent heat from exhaust tail and the sensible heat released by condensation of water vapor, to achieve the purpose of improving the thermal efficiency of the boiler. 2 ,. thermal efficiency condensing boiler Analysis conventional boiler, the exhaust gas temperature is generally 160 ~ 250 ℃, water vapor in the flue gas is still in a superheated state, it can not be condensed into liquid water and release latent heat of vaporization. As we all know, the thermal efficiency of the boiler low calorific value fuel is calculated without considering the heat loss of latent heat of vaporization of fuel in the high heating value. Thus the thermal efficiency of the conventional boiler generally only 87% to 91%. Waste heat recovery boiler is condensed, to which the exhaust gas temperature is reduced to 50 ~ 70 ℃, full recovery of the latent heat of condensation and sensible heat in the flue gas water vapor. Flue gas-fired condensing heat recovery steam boiler flue gas volume components typically produce 15% to 19%, the water vapor content of the oil-fired boiler flue gas is 10% to 12%, much higher than in coal-fired boiler water vapor content below 6%. Currently the thermal efficiency of the boiler are low calorific value calculation, although nominally higher thermal efficiency, but because of high natural gas, low calorific value difference of about 10%, the actual energy efficiency to be increased. To take full advantage of energy, reduce exhaust gas temperature, flue gas heat recovery physical, when the wall surface of the heat exchanger flue gas temperature below the dew point temperature, water vapor in the flue gas will be condensed, releases latent heat, low and high 10% calorific value difference can be effectively utilized. [1] 3, economic benefits condensing boiler condensing boiler water temperature of flue gas can be recovered in the boiler and the fuel type and the number of latent heat of steam boiler water using. When the ordinary recovery boiler combustion gas without condensation, the heat efficiency of the boiler if the calculated calorific value of the fuel was 90%, the use of condensing heat recovery unit, the exhaust gas temperature down to 30 ~ 50 ℃, the thermal efficiency will be increased to about 107%. In the case where the fuel consumption is constant, the lower the heating system return, the more condensing heat recovery heat recovery, the higher the thermal efficiency of the boiler. A boiler to provide heat for the winter the water conditioning water ring, which heating hot water temperature is 25 ℃, condensing boiler using a considerable saving than the conventional hot water boiler operating costs. 1 million kcal / h boiler, for example, natural gas consumption of the conventional type boiler 126.5Nm3 / h (natural gas low heat value 8500kcal / Nm3), consumption of natural gas condensing boiler 110Nm3 / h, when the boiler is operating 10 hours a day, heating period is 100 days, then, a condensing boiler using natural gas 16500Nm3 savings per year, using natural gas meter price 1.8 yuan, an annual operating cost savings 29,700 yuan. 4, the role of environmental fuel combustion condensing boiler will produce large amounts of CO2, NOX, and small amounts of SO2, these substances into the atmosphere, causing acid rain and the greenhouse effect, damaging effects on the environment. At the same time water vapor condensing boiler flue gas is condensed, you can easily remove these harmful substances in the flue gas, therefore, use of condensing boiler also important for environmental protection.

At the completion of the city's foundation 10 steam tons / hour and the coal-fired large commercial boilers Chaigai, and gradually expand the coal-fired boiler demolition and clean energy transformation range, before the end of 2020, the city planning area basically eliminated 35 tons of steam / coal-fired and boiler.

Xinyang, Henan decreasing year by year funding award boiler fill ways:

(1) the completion of the coal-fired boiler Chaigai before the end of October 2018, giving not less than 60,000 yuan / tons of steam financial awards complement;

(2) the completion of the coal-fired boiler Chaigai before the end of October 2019, giving not less than 40,000 yuan / tons of steam financial awards complement;

(3) complete Chaigai coal-fired boilers for the end of October 2020, the prize money will not give up.

At present, many City in Henan Province have been put forward relevant atmospheric Prevention Act, because the policy has landed Henan Province, allowances and Chaigai range of boiler Metro Toronto are the same.

1, leading to the large commercial boilers room outside the doors should open outwards. Each boiler room should be at least two outlets, are provided on both sides. When the total width of the front end of the boiler (the boiler comprises a passage between the inner) of not more than 12m, and a boiler room area not exceeding 200m2 single boiler room and to be open only one outlet.

2, the boiler room door should not be used on a pull-down shutter doors or sliding door, single evaporator rated less than or equal 2t / width and height h of the boiler door homeowners boiler boiler assembly generally not less than the maximum dimensions plus 0.5m .

3, the ground should be flat boiler room without a step, no water in the boiler room floor drain hole (groove) should be set up at, to facilitate drainage.

4, boiler room should comply with building "architectural design code for fire protection" and "design of tall buildings for fire protection" requirements.

5, between the boiler wall (1.5 meters or less from the ground) should adopt cement plaster or tile veneer moisture protection and to facilitate washed with water.

6, boiler room operation site, as well as water gauge, pressure gauges, thermometers, flow meters, etc., should have adequate lighting.

7, operation of the boiler room should be open layout, and boiler water, boiler pressure measurement and control instruments concentrated in the operating room, and boiler and safety accessories should be reliable rain, wind, frost, anti-corrosion measures.

8, located in the wood workshop, no fireproof partition wall of the boiler, the application of non-combustible material, fire resistance of 4h material masonry firewall, the firewall directly on the basis of the masonry or reinforced concrete frame, the firewall should be cut off burning body or difficult to burn the roof structure, the roof and the body should be higher than 400mm non-combustion, combustion or higher hard body burning roof 500mm.

What rely on hot water large commercial boilers circulating hot water boiler and sewage notes, this is a particular kind of boiler, but also the product website, it is necessary to be familiar with and understand, to find out what it is and how to correct and reasonable use, this ensures that products are a good use of effects and to achieve full utilization, but also to avoid misuse and other issues, they would benefit from. 1. The hot water boiler depends on what forced circulation and natural circulation? Hot water boiler, which is a thermal energy conversion device capable of providing hot water, when it is the transfer of heat to the fuel combustion in the boiler water, boiler water temperature rises to a certain user for heating or life water. In general, the boiler inlet and outlet flow is water, which is carried out by forced circulation pump pressure. If it is natural circulation, the difference is the weight of the body against the boiler water temperature to achieve a different result. 2. Whether the new hot water boiler cook stove before you start using? What are the requirements for water quality that is running? Until a new hot water boiler started, is to be boiling out of work, so on a question, the answer is yes, the aim is to remove the protective film in the boiler rust, oil and metal surface, thus, make it hot water boiler and smooth running. When the boiler is running, is required to control the quality and the use of demineralized water, the PH value in boiler water, to be maintained within the range of 10-12. 3.1.5 tons of hot water boiler, which is what the cycle of water and other notes? 1.5 tons of hot water boiler, which heat supply to the boiler in accordance with the calculation, it should be 1.05MW hot water boilers, hot water boilers are small tonnage, which generally is not the high pressure high temperature water, particularly in the standard parameter, is 1.6 / 150 / 90,1.6 / 130 / 70,1.25 / 130/70 and 1.0 / 115/70, the first digit for the boiler pressure, the middle number is water temperature, return water temperature is the last digit . And this kind of situation replenishment boiler, have a great relationship with the boiler system, it should be considered comprehensive, and this point can not be ignored. 4. The hot water boiler blowdown, whether there are considerations? Hot water boiler blowdown, which is there are some considerations that are specific to: the sewage before work is performed, the water level in the boiler should be adjusted slightly above the normal water line state, there should be no flow of sound in the outfall. Sewage pipes outside the touch blowdown valve, the temperature should be within the normal range, if an exception should be resolved in time, by hand without delay.

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