high pressure oil field steam boilers

high pressure oil field steam boilers

Determine the location of the high pressure field steam boilers room siting what issues need attention 1, boiler room refers to the building design boiler and ancillary equipment, water treatment facilities, pumps and sub-steam (water) tank and the like. Boiler should be separate and independent from other buildings. Boiler room should not be set directly in crowded places (such as public bathrooms, classrooms, restaurants, auditoriums, shopping malls, waiting rooms, etc.), or at the top, bottom, or the immediate neighborhood of the main evacuation port on both sides. 2, the new boiler room should not be connected to the house. 3, provided in the boiler room such as a semi basement layers or high buildings or the first layer must meet the following conditions: (1) each steam boiler rated evaporation does not exceed 10t / h, steam pressure does not exceed the rated 1.6MPa; rated each water boiler (including direct fired absorption chiller-room unit) does not exceed the output 7MW, the rated water temperature ≤95 ℃. (2) Each steam boiler must have a reliable overpressure protection interlocking means interlock protection device and the low water level. (3) accessories and safety interlock protection device for each boiler to regular maintenance and testing to ensure that sensitive and reliable. (4) the building structure between the boiler should have the appropriate proof Measures. (5) operate independently of the fireman who must hold the appropriate level of operating permits fireman, boiler and continuous operation of the same class more than five years, has not been an accident. (6) There must be safe evacuation routes. 4, should not be located in the boiler room or a high-rise multi-story building basement, an intermediate floor or roof, but the conditions required setting time, shall meet the requirements of paragraph 3, the first gist of the present, should meet the following conditions, and former boiler room should be set prior consent districts of the city and over special equipment safety supervision agency: (1) steam boilers rated evaporation each no more than 4t / h, rated steam pressure does not exceed 1.6MPa; each heat rated water boiler (including direct fired absorption chiller-room unit) does not exceed the output of 2.8MW, the rated water temperature ≤95 ℃. (2) must be light oil, city gas, natural gas as fuel or electric heating boiler. Underground boiler room non LPG gaseous fuel or a density greater than 0.75. Connection (3) using a fuel supply pipe welding backing. In addition, when set in the basement boiler room, blowdown or appropriate measures should be set up sewage. When using gas as fuel, the exhaust system is also provided accident. 5, not connected to the boiler room A, (B) and (C) a liquid combustible fire risk room. If connected to other production plants, application firewall separated. Waste heat boiler is not so limited. Boiler production plant belongs to class D, between the fuel tank, between the pump delivery room Class C production, between the gas regulator belonging to the delivery room A of production. 6, between the outer wall or roof of the boiler should be at least equivalent to 10% of the area between the boiler pressure relief area (such as windows, skylights, shutters, etc.), and the relief port should avoid crowded places. 7, boiler room should be equipped with emergency lighting and evacuation signs, emergency lighting voltage shall not exceed 36V.

Boiler cleaning the necessity and significance of the boiler after a long run, the inevitable emergence of scale, corrosion problems, these problems are due to the generation of scale, so that the heat transfer deterioration, resulting in reduced efficacy boiler. It is difficult to achieve nominal evaporation; and since the heat transfer is deteriorated, such that the metal overheating, under pressure boiler, furnace tube bulge occurs even explode; poor thermal conductivity, so that the fuel consumption is increased, increased operating costs, boiler shortened life expectancy. Therefore, the boiler scale, should take the necessary cleaning methods. Of the boiler system operated at optimized state, it must be specialized chemicals treatment of boiler system water system: to remove scale, rust and anti-corrosion treatment: 1 chemical cleaning: adding a chemical cleaning agent to rust in the system , dirt, cleaning oil dispersion is discharged, reduced to clean metal surfaces; 2, routine maintenance: boiler scale inhibitor is added, to avoid rusting of metal, to prevent the crystalline precipitate calcium and magnesium ions. Boiler cleaning in two parts, part of convection boiler tubes, superheater tubes, air heaters, waterwall tubes scale, rust cleaning, i.e. water boiler water treatment, we used the final Li Jing Ling descaling operation, neutral cleaning technology cleaning operation, relatively low cost; cleaning of the part of the outer tube, i.e. the cleaning of the boiler furnace, we used high-pressure water jet cleaning technology, it is possible to achieve good results. 1, the cleaning operation may be neutral at neutral or weak alkalinity (pH 7-12) conditions, the water does not change the operation of the boiler a predetermined state index, do not stop cleaning, cleaning can reduce the loss caused by the stop, this is a the only signs of cleaning. 2, security theory and practice of running the boiler have proven non-erosive, washed acid-free cleaning under neutral conditions, the corrosion rate is less than the water washing of the corrosion rate of the metal, no corrosion damage to the metal. 3, non-toxic and pollution-free operation of the Spirit is a green cleaning products, boiler blowdown COD after its cleaning. BOD. The pH full compliance with national standards. 4, easy to use drugs added to the water supply can be, without a separate professionals, post operator can operate, it can be widely used. 5, a significant saving, the cleaning process in which water is the normal production water, unlike dispensing additional consumption pickling, passivation, and a large number of repeated washing of freshwater resources consumed. High pressure water jet cleaning technology uses water as the medium, so that the water system by special equipment to produce multi-beam, multi-angle, high-pressure water jets of different intensity. Internal cleaning object fouling, plugging, or be completely cut surface adhesion, crushed, pressed and washed in order to achieve complete cleaning. Whatever the fouling deposits, high pressure water jet cleaning device for cleaning, can be completely removed, which considerably metal color. It does not require chemicals, or corrosive flux, safety, and environmental protection. Boiler air preheater, waterwall, superheater, economizer heating surface and the like due to clogging of the exhaust gas temperature, boiler efficiency is lowered, increasing the wind electrical energy consumption; the fan will cause severe blockage afford pulling negative pressure oxygen furnace not enough, boiler forced outage. Using high pressure water jet technology, the cleaning effect is obvious. Equipment from high pressure water pump, water hoses, high pressure gun, special nozzle and other components. Cleaning process: water pressure via a high pressure pump to the 50 ~ 100Mpa, via line transferred to the system actuators work surface, forming a bundle of fine high-pressure water emitted from the nozzle with a high pressure water jet but powerful strike capability, which exit velocity up to 380m / s, the heating surface fouling rinse. The high pressure cleaning technology to clean, easy to adjust, cleaning equipment to be non-corrosive, non-polluting the environment, the effect is obvious characteristics, is an effective and a good way to save money and effort, especially suitable for solving air preheater clogging, severe coking furnace heating surface slagging problems. Generally reduce exhaust gas temperature of 4 to 12 degrees, the main improved reheat steam temperature of 0.5 to 5 degrees, to reduce electrical energy consumption for the wind, and early detection of creeping inflation, under scale corrosion risks, the unit safe and economic operation of very help.

What are the technical parameters of the gas boiler boiler parameters are: 1, boiler capacity, which is the output Q, units of high pressure field steam boilerss are tons / hour representation. Hot water boiler for heat MW / h represents; 2, pressure P, the unit is Mpa; 3, steam (or superheated steam) Temperature q, in degrees Centigrade. Hot water boiler expressed in terms of outlet temperature and return water temperature. Another area of ​​the heating surface of each grate area, fuel type, fuel consumption, water temperature, total drag, with the wind (the wind drums) the amount of exhaust gas temperature and the like. The expression model are: the number of drum (e.g., single drum D, S, double drum); drum arrangement (transverse type H, the Z vertical type); combustion (chain L, G stationary grate etc.); a fuel type (coal a, gas Q, Y fuel, etc.); a steam boiler is usually "tons / h" or "t / h" is the capacity of the boiler. With "Mpa" or "MPa" (old unit of "kgf / cm 2" or "kgf / cm2") of the rated pressure of the boiler, it represents the temperature at the rated pressure saturated steam and superheated by "deg.] C" (Celsius) steam temperature. Thermal Efficiency Heat Transfer Fluid is a boiler furnace or a thermal transfer process, heat is absorbed by water, steam or thermal oil, accounting for complete combustion of the fuel into the boiler heat released percentage capacity of 1t / h steam boiler, i.e. It indicates that the boiler may be over 1 hour into water of 1 ton capacity of saturated steam under pressure; 0.7MW of such water heaters and furnaces heat Transfer Fluid representations may generate heat corresponding to 0.7MW power over 1 hour ( equivalent to one ton of steam heat). Two water boiler is the heating means for the hot water boiler working fluid. Usually "MW" (MW), with the old unit "when Wan kW /" or "million kcal / h", namely "104kcal / h" is the capacity of the boiler, with "Mpa" represents the rated pressure of the boiler, with "℃" the hot water temperature.

Recently, the issuance of Shanxi "Shanxi Air Pollution Control 2018 Action Plan." Plan put forward, to continue to carry out "dirty scattered" corporate investigation and remediation. Implementation of industrial enterprise environmental upgrade project, complete transformation of ultra-low emission coal-fired units, key industrial enterprises fugitive emission control; the end of June 2018, the basic completion of coal chemicals, fine chemicals, packaging, printing, industrial coating, rubber products manufacturing VOCs pollution control and other key industries. Meanwhile, further strict environmental standards, Beijing, Tianjin and the surrounding national "26 + 2" requires the implementation of urban air pollutants emission limits in particular the standard extended to the whole province, 11 municipal power (other than coal), iron and steel, nonferrous metals , cement, chemical industry since existing enterprises October 1, 2018, the coking industry since October 1, 2019, emissions of sulfur dioxide, nitrogen oxides, particulate matter and volatile organic air pollutants special discharge limit execution value standard. Pilot ultra-low emissions of air pollutants transformation in steel and other non-electric industry. Coal-fired power plants, iron and steel enterprises should take effective measures to eliminate rain gypsum, colored misty rain and other phenomena, reduce flue gas soluble salt, sulfuric acid mist, organic matter and so on.

We attach great importance to the provincial government, through the joint efforts of the whole province, in 2017 the successful completion of the first phase goal, "Air Pollution Prevention Action Plan." But the air quality situation is still grim, uncompromising determination to be the most strict system, the most effective measures to further promote the further air pollution control tough fight, winning the 2018 Blue Sky Battle. Action Plan formulated as follows:

(PM10) average concentration, and the ratio of the total fine days major air pollutants emissions of fine particulate matter in ambient air to complete the tasks assigned country. The average sulfur dioxide concentration of about 45 micrograms / cubic meter.

1. Vigorously promote clean winter heating engineering. According to "enterprise-based, government promotion, residents can bear" principle, promote co-ordinate the urban area, county and urban-rural, rural area clean heating three types of work.

2. make every effort to guarantee the power supply gas source. Around the "coal to gas coal to electricity" project must be able "to plan, the first contract, after the transformation," the village does indeed complete the household work before the end of May 2018.

3. Increase coal-fired heating facilities environmental standards. October 1, 2018, all in particular to achieve the emission limits of air pollutants emission standards with coal-fired boilers, 20 tons of steam / hour and above all boilers installed on-line monitoring facilities and networking with the environmental protection department.

4. eliminate scattered coal-fired boilers. October 1, 2018, 11 municipalities and districts built-up area basically out of 35 steam tons / hour and less than the cogeneration except coal-fired boilers (including pulverized coal boilers), the county built-up areas and further eliminate scattered coal-fired furnace, stove , switch to clean energy.

5. strengthen "ban on coal zone." Before the end of September 2018, 11 municipalities and districts were designated as urban area you want to "ban on coal zone", combined with improved air quality requirements of the suburban areas into the scope of "no coal zone", the implementation of joint chip control.

6. Strengthening quality control. Prohibit the use of more than 1% sulfur, 16% higher than the ash of coal bulk of the civilian, according to the actual municipalities and improving coal quality control standards. To strengthen the management and control of coal sales circulation, strengthening coal random testing, unit sales of low quality coal to be investigated and dealt with according to law.

8. continuing to promote "scattered dirt" comprehensive improvement of enterprise. Continue to carry out "dirty messy" business dragnet investigation of verified "scattered pollution" enterprises to implement classification disposal.

9. The implementation of industrial enterprise environmental upgrade project. Full completion of coal

10. strengthen key industries VOCS emission control. VOCs emissions units to carry out the screening, the establishment of key units List VOCS emissions before the end of May 2018. Strengthen the architectural, automotive, retrieving and dismantling automobiles, dry cleaning, catering and other non-point source VOCS governance and control.

11. strictly implement the industrial fugitive emissions control requirements. Before the end of May 2018, industrial enterprises and yard materials handling, transport, production process fugitive emissions comprehensive treatment.

12. Strengthen vehicle fuel quality control. General ban on the sale of diesel and lower than the Six Nations of motor gasoline and diesel fuel. Ongoing fight against the production and sale of counterfeit car oil special action.

14. accelerate remote monitoring and network platform. Before the end of 2018, municipal environmental protection, transportation, public security and traffic control departments should actively cooperate with the installation of remote monitoring equipment in the city's main crossing, and the achievement of national, provincial and municipal networking.

15. Strengthening of heavy-duty diesel vehicles joint law enforcement. All the manufacture, import, sale and registration of heavy-duty diesel vehicles must meet national standards. No vehicle emissions inspection report on a regular basis, the public security authorities may issue safety and technical inspection.

16. Strengthening non-road mobile machinery pollution control. Before the end of 2018, municipalities should designate and publish the ban on the use of high emissions of non-road mobile machinery space, environmental protection department in conjunction with transportation, housing and urban construction, water conservancy, agriculture and other relevant departments, non-road mobile machinery emissions of atmospheric pollutants supervision and inspection establishment of the province's non-road mobile machinery emissions database.

17. Strengthening freight restructuring. Cargo accelerate the construction of the railway station, railway transportation facilities improve, encourage and guide enterprises focus on car transportation by rail.

18. Strengthening the construction dust control. Construction unit should be released on the construction site dust pollution prevention and control measures, information on the person in charge, dust supervision and management authorities, to ensure Weidang do around the site, stockpiling cover, wet earth excavation work, road hardening, cleaning out the vehicle, slag soil transport vehicles sealed "to fly more than six hundred percent the size of earth and stone construction sites have been installed on-line monitoring and video surveillance.

19. The overall strengthening of urban roads and transportation dust remediation. Enhance road transport dust control. Transportation departments must formulate policies to encourage and guide enterprises to accelerate the development of a closed box-type truck, container carrier, container transport and actively explore the dense ask hard measures transporting heavy goods vehicles or bulk materials.

20. comprehensively strengthen all kinds of open-air yard, bare ground and public facilities dust remediation. Comprehensive clean urban fringe and villages demolition and construction waste muck, not timely clean-up must be taken to cover the pain and other dust suppression measures.

21. Measures to strengthen the ban on burning ban. Xuan is strictly prohibited open burning straw. Strengthen local people's governments at all levels straw Jinshao main responsibility Xuan, Xuan prohibiting the straw in forest fire prevention system, strengthen policy advocacy, to carry out special inspections straw Jin Shao Xuan.

Municipalities in accordance with the level of emissions performance of enterprises, autumn and winter peak load shifting production of industrial enterprises classified management, the pollution and promote green civilization construction, manufacturing, transportation combined, reflecting the difference, to avoid simplistic, absolute, "one size fits all." Since October 1, 2018, sulfur dioxide, nitrogen oxides, volatile organic compounds and particulate matter emission limits can not be achieved in particular electric power (other than coal) atmospheric pollutants, steel, petrochemical, chemical, colored (free of alumina), cement and other industries and enterprises with existing coal-fired boilers, industrial enterprises and unfinished fugitive emission control requirements, all to be discontinued treatment; achieve particular emission limits of air pollutants and related trades completed unorganized emission control requirements by according to local city and county government to improve ambient air quality objectives and requirements to protect people's livelihood, under the premise of peak load shifting production in line with national regulations, the self-heating of reasonable discretion determine the peak load shifting production requirements.

Strengthen air quality monitoring and early warning system and team capacity building, improve regional air quality forecasting consultation mechanism to further strengthen the research environment and meteorology mechanism, comprehensively improve ambient air quality forecasting ability, scientific judgment heavily polluting process, strictly from the high start-up warning response.

Municipal people's government is the main responsibility for improving air quality, pollution prevention and control organizations to further strengthen the leadership of the atmosphere; the departments concerned to strictly implement the division of responsibilities in accordance with mission requirements.

Overall increase air pollution control funds to support efforts to clean the focus for heating, replace coal-fired boilers, industrial pollution control, elimination of old cars and support scientific research and technology and other fields.

Efforts were dissemination of environmental information, media coverage, public opinion to guide work, timely release of environmental protection policies and heavy pollution weather warning information, take the initiative to respond to hot issues of public concern, to protect the public's right to know.

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