Natural Gas boiler Commercial Dealer Singapore

Gas-fired steam boiler commercial dealer singapore safety valve from installation to use, it must remain vigilant safety valve is one of the most important components of the gas steam boilers, boiler probability of the risk occurring due to various incidents can effectively suppressed. This article focuses on the safety valve from installation to use several important considerations, we do not ignore the use of gas when it steam boiler. A Notes 1 safety valve, the safety valve should be mounted vertically in a high position in the pot business, set box. 2, between the safety valve and the drum or header, not equipped with access to the steam outlet pipe and the valve. 3, the lever-type safety valve should prevent movement of the self-apparatus and the weight limit leverage deviant guide tube, a spring safety valve should lift and handle means for preventing movement of the adjustment screw is screwed lightly. 4, the rated steam pressure less than or equal to 3.82MPa gas steam boiler safety valve throat diameter of not less than 25mm; power greater than the rated steam pressure 3.82MPa boiler safety valve throat diameter not less than 20mm. 5, the safety valve and coal-fired steam boiler tubes, the cross-sectional area not less than the cross-sectional area of ​​the valve inlet. If several valves installed together with a short tube directly connected to the drum, the cross-sectional area of ​​the passage should not step short tube to 1.25 times the area of ​​all the exhaust valve. 6, the safety valve should normally be installed exhaust pipe, exhaust pipe should be through a safe place, and there is sufficient cross-sectional area to ensure the smooth flow of exhaust. 7, the safety valve exhaust pipe at the bottom should have received a place of safety posturing of drainage pipe, the exhaust pipe and drainage pipe not allow the installation of the valve. 8, rated evaporation to 0.5t h coal-fired steam boiler /, at least two safety valves installed; Rated evaporation 0.5t h less than or equal to electric boiler /, mounted on at least a safety valve. 9, separable economizer outlet, the steam superheater outlet valve must be installed.

Problems coal boiler commercial dealer singapore gas boiler gas coal problems are: 1, more coal ash, 2, unevenness of coal particles, 3, coal contains a large amount of impurities, 4, a lower heating value of coal, 5 when combustion is not easy to ignite fire, 6, coal moisture content uncertain. 7, does not burn coal, slag high carbon content. In general, use is preferably designed coal boiler design coal or coal close, in order to ensure stable combustion. In recent years due to the growing tension surrounding the coal supply, coal supply has become diversified, coal quality is very different than before coal, have a great impact on the stability of the boiler combustion and normal heating operation. Impact of coal combustion boiler stable for: calorific value of coal is coal reflects an important indicator of good or bad, when the low calorific value of coal to a certain value, will not only affect the incomplete combustion instability and can lead boiler flameout, the outlet temperature of the boiler is difficult to compliance, affecting the normal operation. Volatile combustion and can be deposited at lower temperatures, as the combustion heat, the temperature rapidly increased coke particles, provide an extremely favorable conditions for ignition and combustion, volatiles further increased coke deposition and internal voids and the external reaction area, will help improve the speed of burning coke. Thus, the greater the content of volatile, nonflammable, the less fixed carbon in the coal component, the easier coal burning ember, devolatilization of many voids, increases the surface area of ​​the reaction, the combustion reaction is accelerated. When the volatile content is reduced, pulverized coal ignition temperature significantly increased, the hot increases, difficult fire, ignition time required becomes longer, the combustion stability is reduced, shifting the center of the flame, furnace absorbed radiation heating surface reduce heat, increase the heat absorption of the convection heating surface, the rear exhaust temperature, exhaust loss increases.

For the continuous improvement of the province's environmental air quality, enhance people's happiness index, Henan Province Government Office issued the "2019 campaign of air pollution control implementation plan." Details are as follows.

1, to carry out special treatment industrial furnaces

Based on the melting furnace, the melting furnace, sintering machine (furnace), roasting furnace, a heating furnace, heat treatment furnace, a drying furnace (kiln), coke oven gas furnace 9 categories, to carry out an intensive investigation, the establishment of industrial furnaces Details inventory management, enhance the implementation of classification regulation. Not included in the investigation of industrial furnaces list, all included in the autumn and winter peak load shifting discontinued inventory.

2, to carry out clean alternative

Of coal, petroleum coke, residual oil, heavy oil as the fuel of a heating furnace, heat treatment furnace, a drying furnace (kiln), and actively promote the use of natural gas, electricity and other clean energy and the use of plant waste heat, heating power plant and the like instead.

3, to carry out comprehensive improvement of industrial boilers

Before the end of October 2019, in addition to undertaking tasks and will not have the alternative livelihood conditions, the province's basic complete 35 steam tons / hour boiler clean energy transformation or removal of coal-fired. Transformation methods include the removal, an alternative central heating, gas coal, coal to electricity, use geothermal, wind, solar, biomass with a bag filter. Chaigai on schedule to complete the coal-fired boilers, based on 40,000 yuan / tons of steam prize money up. Forbidden to use has been shut down and eliminate waste coal-fired boilers to cash rewards and subsidies.

4, strengthen upgrading gas-fired boiler

Before the end of October 2019, the provincial municipality and county (city) district built more than 4 tons of steam and low nitrogen gas boiler complete transformation after transformation, soot, sulfur dioxide, nitrogen oxide emissions are not higher than the concentration of 5,10,50 mg / cubic meter.

5, strengthen upgrading oil-fired boiler

Before the end of October 2019, the provincial municipality and county (city) district built more than 4 tons of steam and fuel (including alcohol-based fuel) boiler low nitrogen complete transformation after transformation, soot, sulfur dioxide, nitrogen oxides emission concentration is not high in 10,20,80 mg / cubic meter.

6, vigorously promote urban central heating

Full use of existing resources and central heating facilities, the existing large-scale heat sources and central heating pipe network in the area, in-depth investigation heating demand, and promote the rich heating capacity extends to reasonable radius and root out the potential heating, heating reduce blind spots. Before the end of October 2019, Zhengzhou, Anyang, Jiaozuo, Puyang City, built-up area of ​​central heating penetration reached more than 90 percent, Xinxiang City, central heating penetration reached more than 85%; Luoyang, Xuchang, Jiyuan City, central heating penetration reached 3 more than 80%; Sanmenxia central heating penetration 75% or more; unsealing, Pingdingshan, Hebi, 4 Zhumadian City, central heating rate of 70%; Luohe, Shangqiu, Nanyang 3 City central heating penetration reached 60% .

Industrial boiler commercial dealer singapores and control systems of foreign countries: (1) is designed to not only focus on boiler heating systems also pay attention to both attach importance to the development and integration of hardware, pay more attention to the boiler control model and control software research and development; (2) pay attention to the reliability of the control device , economy, such as small oil, gas boiler still use many relays, contactors logic control; (3) control the boiler operation is fully automated, requires less or no operator; (4) larger capacity boiler widespread installation of combustion optimization system based on an online industrial control computer; (5) the use of group control technology while controlling put into operation and out of multiple boiler according to the actual load; the use of (6) information technology continues to improve, medium and small boilers can be transmitted via the mobile Internet managers to operate the boiler boiler operating conditions, overload alarm and other critical information, and to accept operator performs the operation command, the boiler operating data may also be connected to the building automation system via a local area network, the Internet ( BA), the wisdom of the factory system to go; (7) Internet-based remote monitoring system boiler was Development and application. Compared with the boiler control technology and equipment abroad, mainly in the following gaps: ① slow combustion control technology, especially coal-fired boiler combustion control technology development; compared to the presence of on-line monitoring and sensor technology for combustion control developed ② large boiler the gap; the presence of reliability and developed sensor ③ boiler combustion control, actuators and control equipment compared to a big gap; ④ light weight hardware-oriented software for boiler control there is the negative impact of technological development; ⑤ remote operation and control, monitoring system still in its infancy, there is a large distance away from the application; ⑥ majority control equipment still in operation control based on boiler safety level, based on a handful of boiler control equipment taking into account the number of energy-saving, environmental protection and performance of the system control. 3 standardized "Twelfth Five-Year" period, the standardization of industrial boilers has made considerable progress to revise the "Boiler Safety Technology Supervision" of TSGG0001 and TSGG0002 formulate "energy-saving boiler technology Supervision" as the starting point, through the development of core boiler product standard GB / T16507-2013 "water-tube boilers", GB / T16508-2013 "shell boilers", on the basis of gradually straighten out the boiler standards with international standards and further amendments, including one after another on the GB / T10180 "industrial boilers thermal performance testing procedures "and other issues involving the boiler and related components, ancillary equipment design, manufacture, use and inspection of industry regulations and standards 62 (six of which industry technical regulations, national standards and industry standards 30 26, see Appendix H) and universal implementation, technical specifications and standards revised on the basis of implementing the security, the energy requirements of the market fully reflects the principles and spirit of the WTO, which greatly helps regulate and improve the overall technological level of industrial technology and competitiveness of the industry.