7 ton gas steam boiler
After installation and commissioning fast Boiler professional and technical personnel, two hot water boilers to provide our bodies quickly into the orbit of the normal operation. Meanwhile, the design of energy-saving equipment also effectively improve the thermal efficiency of the boiler, saved us a huge amount of fuel costs. --customer feedback
10 tph WNS series gas-fired fire tube boiler project for chemical industryChangchun Huatao Automotive Plastic Trim Co., Ltd. is an auto parts company mainly engaged in the production of automotive plastic inner and outer trim parts, epp foam parts and engine plastic parts. With its technical advantages, it has reached cooperation with Toyota, FAW Volkswagen and BMW. In the production process of automobile injection molded parts, many processes such as feeding, plasticizing and mold filling have a certain temperature requirement. The boiler as a heat source device plays an important role in its production line.In the face of the increasingly severe environmental protection situation, Changchun Huatao actively responded to the "coal to gas" policy and planned to introduce energy-saving and environment-friendly boilers. After a series of investigations and comparisons of many boiler manufacturers, Changchun Huatao finally purchased ZOZEN's star product of environmental protection - WNS series gas-fired 7 ton steam boiler. This series of condensing gas-fired boilers is horizontally arranged, compact in structure and small in floor space. The combustion chamber adopts a large-diameter corrugated furnace to reduce the thermal stress and enhance the smoke disturbance, therefore, improving the heat transfer effect. with the advanced low NOx burner, the NOx emissions can be as low as 30mg/Nm3. The spiral finned tube economizer is also installed at the tail of the boiler to reduce the exhaust gas temperature to 60 degrees, and the boiler thermal efficiency can be over 98%. In addition, the boiler's fully automated control system features automatic operation and interlock protection, which meets the requirements for safety and environmental protection of Changchun Huatao production line.
Compared with the coal fired boiler, natural gas fired boiler for sale in ZG Boiler has high efficiency, low combustion and less pollution, and it is convenient to install, environmentally friendly as well as energy-saving. Natural gas fired boiler can be divides into two types according to its output, one is gas fired hot water boiler, which is usually applied in daily life; and the other is the gas fired 7 ton steam boiler, which is mainly applied in industrial production. Both of them can take city gas, biogas, natural gas and other gas as its fuels.
The 7 ton steam boiler can be divided into three kinds according to the fuel (electricity, oil, gas), such as electric steam boiler, oil steam boiler, gas steam boiler, etc. According to the structure can be divided into vertical steam boilers, horizontal steam boilers, small steam boilers are single, double-return vertical structure, large-scale steam boilers are mostly three-way horizontal structure. If according to the classification criteria above, there are a lot of steam boilers, take an ordinary fast-packed 4-ton steam boiler. Water is heated into steam in the drum and heat is emitted by fire in the furnace, which is the principle of the steam boiler. Steam The combustion part of a steam boiler consists of a chain grate and a drive device, together with a combustion chamber composed of a boiler rack on the grate frame. Surrounded by refractories. Coal from coal hopper, there are coal gate to control the thickness of coal seam while sealing the front of the air. The lower part of the combustion chamber is the place where the blast enters. This steam boiler has great resistance and needs forced blast. The cinder of a steam boiler, discharged from the back of the grate through Eagle's mouth iron and sent out of the furnace by a slag extractor. Steam boiler flue gas from the back of the boiler, by the steam boiler drum one-way smoke pipe forward, from the two-way smoke pipe back to the rear, then into the dust collector to separate ash, and then through the induced fan from the chimney exhaust Out. The above is the working principle of steam boiler, of course, the operation of steam boiler without other equipment, such as the induced fan not only undertake the task of exhaust flue gas, but also the steam boiler negative pressure operation necessary. There are also pressure vessels, thermometers, safety valves, pressure gauges, pumps, steam pumps, etc. All are essential for steam boiler work. Pump leak problem. The actual output flow rate of gear pump is smaller than that of theoretical flow due to the leakage of gear pump in the process of operation. The main leakage channel of gear pump is through the gap between the two sides of gear and the cover plate on both sides of the gear, which is 75% / 85% of the total leakage of the pump. Radial clearance leakage between gear top circle and inner hole of pump; clearance leakage through gear meshing. Because of the leakage of gear pump, the output pressure does not go, which affects the range of use of gear pump. In order to solve the problem of low output pressure of gear pump, the way of adding floating sleeve or elastic baffle on both sides of gear pump is adopted to reduce the leakage of gear pump and improve the output pressure of gear pump. Radial force imbalance problem. In the working process of the gear pump, the pressure on the outer circle of the gear is not equal, which results in the radial unbalance force at the shaft and bearing of the gear. This radial imbalance will accelerate the wear and tear of the bearing, reducing the bearing The service life also may cause the gear shaft to deform, causes the tooth top and the pump body inner hole friction, damages the pump body, causes the pump not to work normally. The common solution is as follows: (4) opening pressure balance slot on pump, leading high pressure oil to low pressure area, but it will increase pump leakage and affect pump volume efficiency; (2) reducing the size of the pressure chamber, reducing the pressure area acting on the gear teeth, and thus reducing the radial unbalanced force.