tell me about steam boiler more information

A small hot water boiler is defined as a boiler in which the rated effluent pressure does not exceed 0.1 MPA or is pressurized with tap water. To meet these two points, it can be considered as a small-scale hot water boiler, and for us, we should know this point correctly and should not make mistakes in order to avoid problems in selection and use.

Fangkuai boiler quality management procedures inspection: (1) strictly follow the three (according to standards, according to drawings, according to technology and technical documents) inspection, inspection according to three inspection (self-check, mutual inspection, special inspection), to ensure that the three non-(non-conforming materials are not put into production, If the unqualified workpieces are not transferred to the next procedure, and the unqualified products are not put into the storage). (2) the next working procedure shall not be transferred to the next procedure for the non-qualified products, and the next working procedure shall not be carried over to the next procedure. The next procedure shall have the right to refuse acceptance. (3) the process inspection shall be subject to the first inspection, the circuit inspection and the completion inspection. (4) sampling and full inspection: 1 the key process must pass the production worker self-examination. After passing the test, the inspection personnel shall be handed over to the inspectors for full inspection, and the detailed inspection records shall be made. 2 the production operators in the main processes shall submit themselves to the inspection personnel for special examination after they have passed the examination, and the inspection personnel shall carry out random inspection or full inspection according to the requirements of the technical documents, 3 the production operator of the general procedure shall pass the test and submit it to the inspection personnel for inspection, and the inspectors may carry out the sampling inspection according to the requirements of the technical documents. 4 materials, welding, and welding shall be carried out according to the requirements of the technical documents. Non-destructive testing and other procedures must comply with the relevant provisions of this Manual and the requirements of the quality Management system. 5 parts or semi-finished products transferred to other workshops, the inspector signed on the job transfer form. (6) according to the eight key stop points H of the control point list of the container manufacturing quality plan, each responsible engineer must come to the inspection and carry out the control work on the spot.

After the tell me about steam boiler more information to produce steam also need to pay attention to them? Steam boilers purpose is to generate steam to conduct heat, but when the steam produced by the boiler equipment should not be on the matter, or to pay more attention after the steam, because this time the steam boiler will start boost, while furnace the saturation temperature of the water also began to increase. Since the temperature of the water in the rising steam boilers, gas bubbles and metal evaporation heating surface wall temperature also began to rise at any time, need to pay attention to thermal expansion and the temperature of thermal stress, because the bubble wall thickness is thick, the main heating process in the boiler the problem is thermal stress. At the same time, but also consider the overall thermal expansion problems, especially for pipe heating surface of the steam boiler because the wall thickness, length of problems in the heating process is thermally integrated for expansion, but also pay attention to thermal stresses, to prevent neglect caused the failure. Generating steam in a steam boiler and boost heating process, the temperature difference between the bubble there is a temperature difference along the thickness of the vertical wall and, when the temperature is higher than the outer wall temperature of the inner wall, the upper wall surface temperature is above the lower case, in order to prevent excessive thermal stress, the boiler must be slow step. The steam boiler ignition during bootstrapping, the operating state of the steam parameters of the boiler, the water level and the respective members is constantly changing. Therefore, in order to effectively prevent the occurrence of abnormal conditions and other hazards, be sure to arrange professional staff to closely monitor a variety of changes in the meter indication. By adjusting the control pressure, some of the process parameters of temperature, the normal water level in the range of the allowable, but also the reliability of the assessment, a variety of security instruments, valves and other components, so as to ensure adequate safety and stable operation of the steam boiler . The higher pressure steam boiler, energy consumption will be higher and higher, the corresponding steam pressure equipment and piping, and the valve will also increase accepted, which also makes maintenance protection boiler steam demand is relatively increased, and steam generated in the heat generation and transport processes and also increase the proportion wandered. High pressure steam mouth of salt will increase with increasing pressure and that the heated area of ​​the waterwall tubes salt, smoke tubes and the like drum phenomenon generating structure, resulting in overheating foaming, clogging phenomenon, can cause severe pipeline explosion and other dangerous accidents.

January first, Henan Province issued "the transformation of traditional coal chemical industry development action plan" (the "Program"), to promote the province's pollution prevention campaign of three-year action plan to speed up the traditional coal chemical industry (ammonia, methanol) industry to green transformation, to achieve high-quality development.

First, strictly control new capacity

Adherence to the red line capacity, traditional coal chemical enterprises prohibit new construction, new capacity expansion projects alone, is strictly prohibited without permission around the building does not meet the requirements of the industrial layout plan of coal chemical project in principle. The province's coal chemical projects and intensive clean-up, but according to the specified time limit has been approved to start construction of the project in principle, to construction, relocation and renovation projects must be upgraded into the base or campus planning. By 2020, the chemical industry out of the fixed bed coal gasifier intermittent exit single set of devices 300,000 tons / year of synthetic ammonia production capacity. Strict safety, fire safety, environmental protection, energy saving, water administrative licensing, implementation of the project safety, environmental protection facilities "three simultaneous" (designed, constructed and put into use) system, and resolutely shut down energy consumption, environmental protection, safety, quality, technical non-compliance enterprise. Strict implementation of the regional total energy consumption, pollutant emissions control requirements, upgrading of coal coal project be implemented reduction or equivalent alternative.

Second, increase the relocation and reconstruction efforts

Further promote the densely populated towns of dangerous chemicals production enterprises and urban built-up areas heavily polluting industrial relocation of enterprises, the implementation of an intensive investigation, the establishment of management accounting, according to "a business a policy" during mode classification advance. Priority to promoting the urban area of ​​coal chemical industry relocation, conversion or quit, not in the urban area but not in the business park to gradually move the park, according to the specified execution be discontinued or phased out. Close to exit the business enterprise to achieve the "two off three clear" (cut industrial water, electricity, removal of raw materials, products, production equipment), select the transformation of the enterprise to implement the upgrading of the standard industry benchmark, to off-site relocation According to large-scale, modern principles move into the province for involving chemical industry gathering area. Relocation upgrading of enterprises, projects and equipment should be encouraged to reach equipment industry access standards and conditions specified in the Guiding Catalog of Industrial Structure Adjustment, the use of large-scale continuous pressurized gasification plant, ammonia production capacity to 300,000 tons / year and above, coal methanol production capacity reached 100 million tons / year and above, the main push large-scale equipment.

Third, the implementation of green transformation

Before the end of 2019, coal chemical enterprises fully completed VOCs governance. And comprehensively promote the chemical industry equipment static and dynamic sealing points, storage, handling, waste water systems, unorganized process emissions and non-normal operating conditions and other root causes of remediation. As requested, the timely completion of the coal chemical industry waste discharge permit issued by the work, companies must comply with the behavior of the sewage discharge permit clear conditions, various types of environmental inspection found violations, strictly and severely investigated and dealt with as soon as possible in place. Based on "clean production audit approach", the implementation of coal chemical enterprises compulsory clean production audit coverage. Required to implement risk control measures to close the relocation of enterprises left over land.

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