1 ton portable steam boiler

Features boiler during operation of the drum 1. The composition of operating pressures and gas turbine combined cycle 1 ton portable steam boiler blowdown waste heat boiler has two or three drum, each drum minutes, run at different pressures, such as boilers combination of three steam drum, the drum has a pressure of a pressure drum, a low-pressure drum. In addition to the low pressure steam low pressure steam into the drum is not generated and the steam turbine into the deaerator, the high pressure steam supply to the steam drum Du machine. Qian any type of boiler, such as the presence or steam separator drum level fault, will produce serious chemical injury; for multi-component waste heat boiler drum, Q will be more serious. Further, in order to save water and energy transfer, sewage discharge way from the upper drum to the lower drum, and chemical changes affect the other drum in a steam drum. 2. Only water wall tube number 1 is set in the conventional exhaust heat recovery boiler waterwall tubes, the tubes can absorb heat due to the surrounding child, the cold side of the hot-side heat conditions conventional boiler waterwall tubes absent. On the other hand the flue gas flow, boiler, different heat flux and heat flux at the last row of finned tube of the first row at the finned tube, the difference was greater at startup. Typically, the first row of fins flue gas stream corresponds to the riser pipe, finned tube corresponds to the last row of the downcomer. However, the temperature rise in the boiler startup phase, as yet supplied to the steam turbine, the flue gas flow tuna rearmost tube sheet may be reversed, so that it corresponds to the initial rise in concentration of the chemical composition should be low, which allows the wall the resulting precipitate was minimal. 3. In addition to the waste heat boiler of the gas turbine combined cycle, oxygen is an important part of the low-pressure steam drum. Typically, low pressure steam into the low pressure steam generated by the drum deaerator feed water and makeup water to provide resources, as alternate start boiler is not provided, so that if the outlet steam pressure boiler system deaerator and the deaerator at start when open to the atmosphere, stop shutdown, the water tank to absorb oxygen, oxygen dissolved in water combined cycle heat recovery boiler causes pitting and fatigue corrosion. 4. The waste heat boiler because the DC current is no waste heat boiler drum, economizer nor evaporator superheater, when water flows through the tube bundle, the position of the interface is dependent on water vapor partial pressure of the water flow and heat absorption. 5. Run peaking gas turbine waste heat boiler can be designed to start and stop frequently, with a peak load operation, the situation in the future, peak load operation with frequent starts and stops often appear. But many ask the waste heat boiler with frequent stops the unit is related to the waste heat boiler difficult to adapt to frequent starts and stops with the state of the peak-load operation, the waste heat boiler operating status will cause a large thermal stress and chemical corrosion. These are the boiler equipment produced in the course of their work which reaction: inside equipment parts need to pay more attention, are carefully marked out.

Biomass chaff fired boiler in ZG factory

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Recently, market supervision bureau issued the Notice on Strengthening the National Energy Board within the scope of the power station boiler piping material quality safety risk prevention and control (the "Notice"), to further enhance the quality and safety supervision and management of boiler tubes, effectively preventing security risks, protect the power production safety , as follows.

First, carry out the verification of boiler tubes

The electricity business, special equipment manufacturers to immediately organize boiler tube inspections, to verify whether the focus of the pipe to meet the technical conditions stipulated orders, including the source, size, quantity, quality certificates, raw material procurement contracts, procurement contracts and other piping components. For imported pipe material, but also the verification of the customs declaration, commodity inspection report (proof of entry inspection and quarantine of goods), combined with the production, inspection and testing during use and operation of the situation, in-depth investigation pipe quality boiler safety issues and risks.

Second, effectively prevent security risks

Boiler pipe quality and safety hazards or other problems threatening the security and stability of power station boilers, power companies, special equipment manufacturers to take practical measures immediately, the complete elimination of quality and safety problems; there are significant quality and safety problems, it should stop running generator sets , boiler or stop production and sales of the pipe elements, and replace the boiler pipe complying with relevant standards.

The actual boiler pipe manufacturing unit is unknown or if there are doubts, the relevant information or data can not be traced authenticity, power enterprises, special equipment manufacturers to immediately in accordance with industry standards, inspection and testing institutions have entrusted the appropriate qualifications for boiler tubes were identified test. Test results show that failed boiler or pipe quality does not meet the technical requirements stipulated in the order, power companies, special equipment manufacturers to eliminate hidden dangers in a timely manner or be replaced.

Third, strengthen the source of control boiler pipe

Special equipment manufacturing enterprises, power enterprises should strengthen boiler pipe source control, in strict accordance with the standard provisions of China's relevant laws and regulations and orders technical conditions agreed to carry out boiler pipe design and manufacturing, procurement orders, admission acceptance, inspection and testing, installation and commissioning work, resolutely eliminate substandard or counterfeit boiler pipes enter the field of electricity production; to strictly implement the special equipment safety supervision and management regulations, establish and improve the technical archives and long-term care, to ensure that relevant information can be traced back.

Special equipment manufacturing enterprises, power companies are finding there are significant quality and safety risks of boiler tubes, to report to the local market regulators, power management departments and the National Energy Board sent energy regulators, and to take effective measures to thoroughly rectification to ensure the safe operation of generators . Provinces, autonomous regions and municipalities and Xinjiang Production and Construction Corps Market Authority (Hall Commission) should work together with the same level of power management departments, the National Energy Bureau sent energy regulatory agencies and other units, the organization of supervision and inspection, supervision and hidden rectification, effectively preventing security risks.

Maintenance of the boiler and a method for the specific content of boiler maintenance Embodiment Contents: 1. Check the boiler body (1) whether there is water leakage boiler body, and smoke flue box are tightened well plate. (2) wire gong boiler pipe connections loose. Around (3) whether the boiler is in the correct fastening position. (4) Check whether the flow switch can be properly turned on and off. 2. The security check (1) the phase sequence, the test voltage, the controller determines whether the power requirements of the device. (2) Check the gas pressure, burner meets the normal operating pressure. If (3) Check fuel valves and pipeline leakage phenomenon. 3. A heating boiler routine maintenance item (1) check the safety apparatus 1, the flow check switch 2, switch 3, a low pressure gas, the air low pressure switch 4, the flame detector 5, the temperature detector 6, leak tested (2) boiler check 1, the temperature of each part of the housing 2 checks, check seal 3, .4 check gas flue boiler cleaning maintenance shutdown contents to the boiler the normal operation of energy security, maintenance of the boiler should be conducted once a year. Maintenance include: boiler. Specific maintenance projects: boiler: the boiler smoke box cleaning. Return boiler flue cleaning. Boiler furnace cleaning. Check flue plate seal strip cable, not replacement. Is there a scale inside the boiler inspection. Burner: Check valve seal. Gas pressure switch operation.

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