1-20ton natural gas lpg fired condensing steam boiler
Gas-fired 1-20ton lpg fired condensing steam boiler is an advantage on the device using an environmentally friendly energy-saving: With the designers re-design of mechanical innovation, simple and easy to operate equipment, gas steam boiler is not only relatively simple, and better ensure the safe operation of ; saving advantages: high-temperature low-pressure gas steam boiler with a characteristic greatly reduces the stress levels of heating equipment, less direct advantage is the reduction in equipment investment. Electric heating boiler and the boiler is mainly composed of electric control box and control system. Its characteristics are environmentally friendly, clean, no pollution, no noise, automatic, with limited energy and reduce prices significantly, as a new boiler electric heating boiler equipment increasingly being recognized. Electric heating the core member is electrically heated boiler, directly determines the life of the boiler, to select a non-metallic electrical heating tube (such as a ceramic heating pipe), because it is resistant to the load, a long life, and a water separation structure, the boiler Wing no leakage. Fuel gas boiler is not only fuel but also refers to the gas boiler. Previously no such dual-fuel boiler, burner because either fuel or gas, no dual fuel burners. With the rapid development of the world energy equipment, some European countries begin production and sales of fuel gas burner, dual fuel burner and boiler combination of organic birth of a new breed of boiler - fuel gas-fired boiler. It was also said that the proportion of contact with air, just the right amount of fuel and the amount of combustion air composition in order to achieve combustion efficiency, but also reduce gas emissions and achieve energy-saving dual, very convenient. Gas steam boiler may be configured according to the actual amount of steam required, thus reducing waste of energy. The higher the degree of matching the actual demand and supply theory, better energy-saving effect. Continuous sewage heat can be utilized by a heat exchanger, thereby increasing the water temperature deoxygenated water. Gas-fired steam boilers and other machinery and equipment, more in line with current environmental requirements, so it has been widely used.
Our preliminary investigation when the other side is very interested in fast boiler, a number of fast-party research and development as well as outstanding patent cases in all industry sectors, we have confidence in each other quickly this brand. After the cooperation, but also the strength and each staff fully aware of the fast boiler of a good attitude, and cooperation in the box, very at ease. --customer feedback
In the national standard of water quality standard, the water quality index of hot water boiler stipulates that the total hardness of water supply for chemical treatment outside furnace is less than 0.6 mmol / L. In recent years, in order to reduce the operating cost of heating units, some hot water gas-fired 1-20ton lpg fired condensing steam boilers have been overloaded due to the use of class Ⅲ bituminous coal as fuel instead of class Ⅱ bituminous coal designed to replace the designed type Ⅱ bituminous coal. During the maintenance in summer, it is found that the overloading boiler water wall tube fouling problem is more prominent, some boilers even occur tube burst accident. Why is heating hot water boiler overloaded, scale and even burst tube? Because the calorific value of class Ⅲ bituminous coal is higher, the type Ⅲ bituminous coal of the same weight is burned instead of the designed class Ⅱ bituminous coal. Bituminous coal increases the circulation of boiler riser is not absolute equilibrium, the geometric difference of riser and the heat load are different, so there is inevitably the deviation of flow rate between the risers. Due to the overloading operation of the boiler, some riser tubes are easy to overheat boiling because the flow rate is small, and the wall temperature is higher than the designed wall temperature, so that the scale and even the tube burst are easy to occur. How to prevent the boiler from scaling when overloaded? The heating hot water boiler operates under overload because of the scaling after the superheated boiling. Steam is produced in the process of superheated boiling. The water quality requirement of gas steam boiler is less than 0.03 mmol / L, which is much lower than that of hot water boiler. Water quality requirements. Based on the above reasons, the feed water hardness of heating hot water boiler is reduced, and the scaling phenomenon is eliminated by reducing 0.6mmol/L to 0.03mmol/L.
Fuel gas boiler automatic instrument sets the control means are included which according to the "industrial boilers Complete supply" and provides fuel gas boiler automated instrument packages supply shall include at least the following: (1) evaporation of 4t / h and 4t / h or less boiler 1 ) detection. Water gauge, vapor pressure gauges (including saturated and superheated), water pressure gauge, water thermometer, thermometer smoke, steam flow rate calculation (including less than evaporation lt / h boiler). Oil temperature, oil pressure, oil level indication, calculates fuel (gas boiler as temperature, pressure, gas), furnace exit gas temperature indication. Evaporation of 4t / h boiler flue gas oxygen content should have, furnace pressure, temperature economizer export indication. 2) regulation. Position of formula (only for non-economizer of the boiler) or continuous feedwater automatic control, automatic adjustment of a combustion boiler the combustion of heavy oil should automatically adjust the oil temperature, air pressure gas boiler there should be automatically adjusted. 3) alarm and protection. High and low water level indication and alarm, low water level limit protection, over-pressure steam indication, alarm and protection, flame protection furnace, fuel gas overpressure protection or low temperature alarm and protection. 4) Other. Auxiliary electrical control box, gas boilers should be equipped with explosion-proof electrical control equipment. (2) evaporation of 6t / h and above 6t / h boiler 1) detected. Water gauge, vapor pressure gauges (including superheated saturated), water pressure gauge, water thermometer, thermometer, smoke, water, steam pressure, water pressure indicator, calculated water flow, steam flow indication, recording and computing, oil temperature, oil pressure, oil level indication, indication and calculating the amount of oil (gas boiler as temperature, pressure, gas), economizer inlet and outlet water temperature indication, furnace exit gas temperature, exhaust gas temperature, air pressure, furnace pressure indication, Sheng Mei an inlet, an outlet indicated negative, indicating flue gas oxygen content, there is an outlet air temperature should be indicative of the boiler air preheater, the boiler superheater, there should be recorded and the superheated steam temperature indication. 2) regulation. Continuous automatic adjustment of water supply, drum, induced draft fan damper flap opening remote control, remote pump control valve (an intake gas boiler control valve), a heavy oil combustion boiler should automatically adjust the oil, gas boiler should automatically adjust the air pressure, there is superheater boiler there should automatically adjust the temperature of superheated steam. 3) alarm and protection. High and low water level indication and alarm, low water level limit protection, over voltage protection and alarm indication of heart steam, oil accident alarm system, furnace flame protection, fuel gas overpressure protection or low temperature alarm and protection. Boiler superheater should have more limited temperature of superheated steam and an alarm indication. 4) control and the other. Drums, Fan, and start and stop the pump interlock control program, drum, fan baffle opening damper indicated, shall be provided with explosion-gas boiler electrical control equipment.