Laundry hotel special reference to the current selection of oil boiler steam boilers Hotels generally use the hot water boiler for heating and sanitary hot water, kitchen utensils gas can be directly used, but still need to supply steam laundry room, laundry room steam supply pressure to be 0.4-0.6 MPa, generally an amount of steam in the hotel laundry 0.5 ~ 2.0T / H, steam day with about 3 to 10 tons. Under the premise of the city's coal-fired boilers can not be used, the choice of energy sources natural gas, diesel, liquefied petroleum gas, electricity, in what exactly it is more appropriate? First use to compare the cost of various energy sources, according to Henan hotel energy prices, natural gas is 3.0 yuan / Nm3, diesel 9.0 yuan / kg, liquefied petroleum gas 15 yuan / Nm3, the price of 1 yuan / kwh. Compare 1 ton of steam produced by a variety of energy costs as follows: Energy Category Energy calorific value of natural gas in energy costs per ton of steam 8600kcal / Nm380m33.0 yuan / Nm3240 yuan / ton diesel 10400kcal / kg66kg9 energy consumption per ton of steam energy prices. 0 yuan / kg594 yuan / ton liquefied 22000kcal / Nm331m315 yuan / Nm3465 yuan / ton electric 1kwh700kwh1 yuan / kwh700 yuan / ton Note: energy consumption efficiency estimated by conventional steam boiler; Nm3 refers to the standard state volume of gas M3; calculated from the above analysis, the use of natural gas per ton of steam lowest cost, most economical operation, electrically heated steam up costs. Gas steam boiler typically 2 to 3 sets of selection, single nominal amount of evaporation 0.5T / H ~ 1.5T / H. Gas-fired steam boiler boiler range belong to the state regulators, the need to build a separate boiler room, not like pressure hot water boiler as the main building or in the basement, while the city hotels are often difficult to have a location to build a separate boiler room. In recent years, there is a new type of gas steam boiler, the water capacity is small (less than 30L), a single evaporation accessible 1T / H, do not belong to the state boiler steam boiler regulation range, can be in the basement, a good solution to the conventional steam boiler no suitable location problems.
To effectively and efficiently solve air quality problems, further improve people's quality of ambient air, Luliang city government issued the "Luliang city and surrounding tackling air pollution control action plan."
Luliang within the range of 1300 square kilometers around the city, "an area three counties' area under the jurisdiction of section: Lishi District, Riverside street nine township (town, street) a total of 54 villages; Luo Zhongyang County town of 12 gold villages; Liulin County, Lee Wan total of four villages; Fangshan County Dawu town a total of 11 villages.
1, the effective promotion of clean heating. Implementation of the "Clean Luliang city in northern winter heating pilot cities embodiments (2018-2020 years)" to determine the progress of the task, 2018-2019 before the end of September totaled clean heating transformation of rural areas 90000 (including within the scope of "no coal zone" rural households), where: Lishi District, 20000, 15000 Fangshan County, Zhongyang County 15000, 40000 Liulin County.
2, bulk coal coal strengthen supervision. Downtown "ban on coal zone" expanded to 88 square kilometers, the Willows, in the sun "and ban on coal zone" for the county built-up areas and the surrounding area 5 km, Fang Shan range "ban on coal zone" for the built-up area region, 2019 August 31, coal stoves and coal "double clear" within the scope of "no coal zone" implementation. "No coal zone" outside the prohibited than 1% sulfur, 16% ash content than coal for civilian. Determine civil bulk coal sales to crack down on low-quality coal sales practices.
3, to carry out comprehensive improvement of the boiler. 2019 August 31, all workers in the region (companies) industry, commerce, services, basic administrative units out of 10 steam tons / hour and coal-fired boilers, combustion zone ban (ban on coal zone) all residents within the range, all the villagers self-built coal-fired boilers out of the cell. Not "ban on coal zone" to be able to ensure clean winter heating, self-built coal-fired boilers shall be eliminated; it is difficult to ensure clean winter heating, self-built coal-fired boilers Always use clean coal substitute. And more than 65 tons of steam coal-fired boilers to complete the transformation of energy-saving and ultra-low emissions, low nitrogen gas boiler basically completed the transformation, to achieve ultra-low emissions coal-fired power plants. 35-65 tons of steam coal-fired boilers and more particularly to achieve stable discharge standards; co-firing biomass boilers ban coal and other fuels, efficient dust bags and other ancillary facilities. Non-alcohol-based fuels to burn in the name of blended chemical waste.
In order to ensure boiler safety, to run smoothly, you must ensure that the use of high-quality natural gas. 1, equipped with one gas separator to increase the capacity, it can effectively store oil and water. Secondly, a level gauge designed to directly observe whether there is liquid in the separator. While the design of the automatic drain pressure relief device is installed. A single control pressure of the air is improved dual control, i.e. the pressure regulating valve is mounted on the main line to control the water separator, the pressure to stabilize, improve security purposes. 2, safety monitoring natural gas as a boiler room burning materials, natural gas leak monitoring must be done. The portable display technology poor performance, poor sensitivity. Host combustible gas alarm system with digital control scaling circuit having an alarm function and a secondary alarm, ensure the safe operation of the boiler. 3, check before firing the safe operation of: (1) whether the boiler inspection gates normally open or closed, check the gas pressure is normal, not too high or too low, open the supply valve leading to the boiler. (2) in the flue baffle must be fully open, otherwise it will affect the purge, causing accidents. Each knob and keep control cabinet to check the normal position. If the stove has a residue should be cleaned. (5) Check the boiler ignition and fire protection program control means should be flexible and reliable. Blast doors should be flexible and rigorous on the boiler. Before the completion of ignition, the ignition is not possible to start the ignition operation: After successful ignition, the load can be adjusted in the normal operation of the boiler when the combustion gas boiler adjusted. We should always observe the combustion furnace, and adjust the amount of steam, wind and steam pressure to ensure the safe operation of the boiler. Note: Program: first five minutes were furnace cleaning, automatic ignition after 5 minutes, observe the ignition is successful, the success of one minute after a small fire can be operated automatically converted to fire properly. For the boiler load and the air pressure adjusted by adjusting the pressure regulator to achieve. When adjusting the load, adjust the air pressure at the same time, it must be synchronized to adjust the air flow to ensure a reasonable match air volume and air volume, in order to achieve economic operation of the boiler. In normal operation, the amount of gas should not be adjusted or reduced drastically in order to avoid dramatic changes in combustion, the pressure receiving member sudden expansion, shrinkage and damage. When the boiler is running, the pressure gauge must be monitored regularly in order to maintain stable water pressure. BCP pressure changes observed, reflecting the relationship between water temperature and steam consumption. In the boiler operation, when the steam pressure is automatically adjusted, the main purpose of the staff is to monitor automatically adjusts the boiler system is sensitive and timely solutions to problems and ensure the sensitivity and reliability of the automatic control system. 4, first close the main valve shutdown operation, the air supply is stopped, the circulating pump and the water pump is still running, when the boiler water temperature falls below 70, and supplies or stops the circulation pump in operation of the pump after about 4 hours. Note: In addition to the accident and emergency parking stop, parking general approach should not cut off the power. After the shutdown, it is timely for the boiler and ancillary equipment to conduct a comprehensive inspection. If you find a defect in the device, and repair should be recorded at the time of shutdown. Safety Precautions 1. burner startup, if the burner is repeatedly locking and alarm, you should find out the cause of the malfunction, press the reset button after troubleshooting, press the reset button and then continue to boot. Note: Press the Reset button for less than 10 seconds. A lower burner inlet must be clean and clean, and does not allow offal. 2. burner once the ignition is unsuccessful, Boiler Fan should be restarted. Ventilation After 5 minutes, start the second startup burner igniter. three. During normal operation, the thermal device near the burner portion (e.g. flange connections) will be very hot, in order to avoid burns. Do not put flammable materials in the vicinity so as not to cause a fire. 4. The operation of the boiler circulating pump must be closely monitored and the hot water boiler pressure, gas distributor, pipeline valves, pressure gauges, flow meters, water level gauge and the like. 5. When the firefighters open the door or fire door observation, you should wear gloves and a side view. 6. A burner working environment should be kept clean and dry, in particular, a flame detector (i.e. electric eye) should be kept clean, part of the control circuit should humidity and temperature; class should cleaning and maintenance of a combustor. 7. During use, the filter should be cleaned regularly check or replace the filter cartridge in accordance with impurities of the fuel. 8. Check the electrical installations include: wire is damaged, the sheath is damaged, the screw is loose, the contact is good, whether the motor is running abnormal noise. Describes the advantages and disadvantages of natural gas boiler, editor of Sin sets introduced, the use of technology and safety precautions. Industrial boilers to energy efficient, environmentally friendly development direction. Natural gas boiler to meet the needs of these three points. They are the future of the boiler market trend, more and more restricted energy policy, energy saving and environmental protection requirements.
What is the working principle and composition of gas-fired oil boiler steam boiler? Do you know any customer friends? The following is a technical explanation from the manufacturer of gas-fired steam boilers, which I hope will help you. A gas-fired steam boiler is a thermal energy conversion device that uses natural gas, liquefied gas, city gas and other gas fuels as fuel, burns the heat released from the furnace, heats the water in the pot, and vaporizes it into steam. The energy released from the combustion of a gas fuel in a boiler (pot) continuously heats up and the temperature rises to produce pressurized steam. The boiling point of water increases with the increase of pressure, and the seal of the boiler and the expansion of the water vapor are restricted to produce. Pressure is used to form thermal energy (the boiler's steam is strictly formed by constant pressure heating of water in the drum to re-vaporize saturated water) as an energy source. Gas-fired steam boiler is mainly composed of two main bodies, shell and furnace body, and an accessory, instrument auxiliary equipment, automatic control and protection system to ensure its safe and economical continuous operation. Gas-fired steam boiler is a boiler type boiler with water-cooled crucible. Gas-fired boiler has two return pyrotechnic tubes, arranged on the left and right sides, the front of the drum in front of the cigarette back. Between the roller and the lower box, there is a lower tube and a water-cooled manifold to form the frame of the combustion chamber. Roll There is a steam separator at the top of the tube to reduce moisture in the steam. The heating surface of the main body of the gas-fired steam boiler is the lower part of the drum, the water-cooled manifold and the pyrotechnic tube. It is very energy-efficient in gas-fired boilers. He has a high cost of fuel and liquefied gas and electric boilers. Gas-fired steam boiler is also a kind of protective boiler. When used, there will be dust and gas that damage our health. There will be no such problem with natural gas. The heat efficiency of gas steamer furnace is very high, can reach more than 90%! The point is that he has a long life. He uses very clean dyes, so he doesn't produce dust and smoke in the furnace when he burns. Grey, so his life is much longer than other boilers. In the development of boiler, he is developing towards the goal of environmental protection and energy saving.
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