Hot water boilers and steam boilers What is the difference between hot water boiler for hot water production for boiler heating. Hot water boilers and steam boilers are water as the working fluid, the biggest difference between the two is that the latter produce steam, hot water production of the former. Low temperature hot water boiler has a hot water boiler and sub-temperature hot water boilers it. States have different thermal boundary for hot water and cold water, of 120. C is the boundary temperature, i.e., the water temperature is higher than 120. C for high-temperature hot water boilers, otherwise low temperature hot water boilers. Chinese parameters hot water boiler series is: 0.1 a rated thermal power 116MW, allowable working pressure of 0.4; 2.8MPa, nominal water temperature of 95; 180. C. Low pressure hot water boiler for his work without the supervision and control of water level, so its structure is simple, easy operation and maintenance, ease of manufacture. But there are some special problems of work: hot water boiler must ensure that no vaporized, to avoid water hammer; inner and outer oxygen corrosion of Low Temperature Acid more serious corrosion; sudden power outage, the pot water is not flowing and the like to produce vaporized . These issues must be considered in the structural design of the hot water boiler, manufacture and operation maintenance. Steam boiler and hot water boiler no structures from the pot and stove much difference, but there are still some differences, as if the model (parameter certainly not the same), that there are differences: differences Steam Boilers built, steam boilers there are steam trap, but no hot water; main steam boiler steam output pipe, and hot water boiler is the hot water outlet conduit; steam boiler with a water pipe, and only the return pipe into the tank from the set, from the root of the makeup water is up into the conduit; no hot water boiler water level gauge, the steam boiler has. Further, the high voltage required steam boiler, high pressure steam to provide up to 400 degrees, about 4 atm, the high requirements for the furnace, a high manufacturing process requirements. Hot water boiler to provide hot water 70 degrees Celsius, there is atmospheric and pressurized points, but the pressure is smaller than the steam boiler. From the above use is concerned, up to a few hundred MPa pressure steam boiler on 0.1MPa, the steam is sent out. Used for industrial, mainly used in high-pressure thermal power plant. Complete sets of strong, high-tech, multi-unit self-control, big investment. More stringent State steam boiler management, strong inspection, inspection categories and more. Pressure 0.1MPa or less in hot water boilers, hot water is sent out. Used for life, invest in small, low management costs, security.

To reduce the total coal consumption, reduce air pollutant emissions, Guigang Municipal People's Government announced the latest "2019 Guigang tackling air pollution control plan" proposed scheme: Guigang City is actively taking measures to reduce coal comprehensive use of renewable energy , natural gas, electricity and other energy alternatives to coal consumption, reduce the proportion of coal consumption, focusing on reducing the total non-electric coal consumption. New coal projects to implement alternative coal reduction, the implementation of inventory management, so that statistics can be verified.

Details are as follows.

First, the implementation of the total coal consumption control. Take measures to reduce overall coal, renewable energy, natural gas, electricity and other energy alternatives to coal consumption, reduce the proportion of coal consumption, focusing on reducing the total non-electric coal consumption. New coal projects to implement alternative coal reduction, the implementation of inventory management, so that statistics can be verified. October 2018 in conjunction with the regional government Council issued the "Guangxi county industrial park planning and adjustment plan" and other industrial park planning and implementation of the adjustment, the promotion of industrial parks to carry out "an area a heat source" upgrade, encourage 300,000 kilowatts or more coal-fired heating unit carried out the transformation in cogeneration planning guidance to promote the backward small coal-fired and coal-fired thermoelectric heat within the range of (biomass) integrated boiler shut down.

Second, accelerate the comprehensive improvement of backward small boilers. According to the State Administration of Work Market and three ministries "on the strengthening of energy-saving environmental protection boiler" (National City Supervisor ad hoc [2018] No. 227) requirements to promote energy efficient boiler environmental protection, energy-saving environmental protection to promote the transformation of boilers, eliminate backward boiler. Coal-fired boilers built-up area to carry out an intensive investigation, the investigation out of the coal-fired boilers to register one by one, to establish accounting and inventory management, according to local conditions, Take Measures to develop small boiler (10 tons of steam per hour and below) Integrated remediation plan, the classification proposed remediation requirements, before the end of May 2019, the Municipal environmental Protection Bureau for the record. Carry out a comprehensive district built 10 tons of steam per hour and small coal-fired boilers out of work, according to the law to increase efforts to eliminate small coal-fired boilers in accordance with regulations, in 2019 the completion of small coal-fired boilers out of the task; all kinds of more than 10 tons of steam coal boiler strengthen environmental law enforcement supervision, strict implementation of emission standards for boilers that can not be stable discharge standards, shall order rectification according to law, after rectification still do not meet the requirements, shall not continue to use; to strengthen environmental law enforcement supervision of biomass boilers, in particular to strengthen regulatory biomass boiler ban on high-pollution fuel combustion zone of the city; biomass boilers boiler should be dedicated, efficient dust bags and other supporting facilities, prohibit blended with other fuels such as coal. The city and county-level cities above the built-up area in principle, to create a new 35 tons of steam per hour of coal-fired boilers and other regions in principle no longer new 10 tons of steam per hour and below the coal-fired boilers.

Operational matters to be noted in the use of steam boilers

Steam boiler in use should be very careful, because a little bad pool will bring harm to the person, so in the operation should be more cautious, understand the use of steam boiler instructions, clear points for attention in the process of operation. Based on many years of practical experience, the editor summarizes the operational matters that need to be noted in the use of steam boilers as follows:

As one of the food processing industries, meat processing plants are indispensable for the use of steam boilers. In the food processing plant, the raw materials need to be heated and cooked to mature, and the high temperature is required to sterilize the meat products and the sterilization of the production equipment, which requires steam to be supplied by a steam boiler. The ZG boiler fast-loading biomass steam boiler uses carbon-neutral biomass fuel. The use of a variety of advanced technologies can provide high-quality steam for food plants. The boiler has high thermal efficiency and low pollution emissions.