industrial electric boiler for paper machine

Classification and selection fuel gas boiler thermal control system: a fuel gas heat boiler control system classification (1) a combination of an electric system for an electric meter instrumentation system consists of relays, time relays, the relay program composed of program control and interlock system; or by the electronic control and intelligent digital series instrument, measuring instruments display, sound and light alarm monitoring instrumentation and control system and other components. Electric instrumentation system design experience mature, the price is cheap, but it is difficult to achieve system redundancy, remote data transmission, maintenance is more difficult, more difficult to implement advanced control methods. Electric meter system is mainly used for small boilers, but the electronic control Applications for closed-loop regulation of decreasing almost been replaced by intelligent multi-function instrument, the following sections mentioned electronic control just want to take advantage of familiar industry and series instrument combination that's widely used to illustrate the principle of regulating system and constitution. (2) programmable control system programmable control system is the core of programmable logic controller (PLC). Programmable logic controllers are widely used in the initial control, since the 1990s has increased the ability of process control, the programmable logic controller in the field of process control applications more widely. Programmable controllers typically use a modular structure having a self-diagnostic and communication capabilities, can completely replace the relays, time relays, and a relay circuit for the logical functions. In a continuous control, input analog may be, for performing mathematical operations, it is easy to implement advanced control functions electric instrument system difficult to achieve. (3) The microcomputer control system: This system is Direct Digital Control (DDC) system, which is the core of the microcomputer. Figure 7-1 is a block diagram of a microcomputer controlled system. Microcomputer automatic control system can show you all of the parameters of boiler operation, and dynamic display of important parameters and alarm recording boiler operating conditions, the storage boiler operation, timing and instant print reports. The microcomputer-controlled powerful computing system, may be implemented to optimize the combustion control and other advanced control can also be linked into a network, to realize long-distance data transmission. The microcomputer disadvantage automatic control system reliability is somewhat less, still generally indicate and configure the necessary backup manually-operated unit. But with enhanced anti-jamming performance of industrial microcomputer (IPC), the reliability of microcomputer automatic control system will continue to improve. (4) Distributed Control System (DCS), also known as Distributed Control System distributed computer control system, the production process is centralized monitoring using computer technology, communication technology and redundancy, operation, management and decentralized data acquisition and control of a new types of control technology. Distributed control system is powerful, high reliability, generally used for large boilers and boiler group control. Over the years, DCS vendors in order to meet market demand, the introduction of small flexible mixing process for a variety of applications and devices open control system integration control, more suitable for medium-sized boiler DCS, such as HONEYWELL company's S9000 systems.

Shandong Zhaoyuan Mining Group Co., Ltd. is a large state-owned local asset management companies, gold mining dressing and smelting for leading industries, operates in the area of ​​tourism, services, precious metals, real estate, eco-agriculture, with total assets of 10.2 billion yuan, Shanghai gold Exchange is an international provider of standard gold bullion. July 2017, Shandong Mining Group and fast boiler steam signed a 0.5-ton electric heating steam boiler which mainly produce steam for metallurgical mineral processing and other manufacturing processes, energy defeating small, strong ability to supply steam .

Detailed boiler industry development direction: At present, the boiler industry is a growing industry, while the boiler industry and enterprises are also faced with various challenges. Boiler industry must adhere to market-oriented strategy, closely rely on scientific and technological progress, scientific and technological innovation, under the guidance of national energy and environmental policy, company structure and product structure adjustment, manufacture and sale of boilers in line with market demand, occupancy in the fierce competition in the market place. Boiler prone to fouling deposits during operation, the device not only affects the work efficiency, but also corrosion of equipment, pose a safety hazard. To solve this problem, to further improve the safety of boiler equipment, saving the cost of doing business has an important role. Boiler industry along with the vigorous development of China's national economy, industrial boiler manufacturing in recent years has made considerable progress. Its outstanding performance is increasingly regulated industry standards, technical standards to improve, increasing product variety, economies of scale significantly expanded. As the market demand continues to increase, the number of manufacturing enterprises increased rapidly, by the end of 2008, the national boiler manufacturing license held by the company at all levels to 1555, in which the AQSIQ approval of 1205, approved by the local provincial bureau up to 350, can provide a variety of boilers of different pressure levels and capacity to meet the current needs of the market. Adoption of clean technology combustion boiler fuel, gas boiler and other large and medium cities will be rapid development. Gas-fired boilers will have made great progress, the market potential of burning garbage and large biomass boiler, industrial electric boiler for paper machine system with regenerative electric power industry reform and development will further expand its market. The use of clean fuel and clean combustion technology, high efficiency, energy saving, low pollution boiler boiler products will be the development trend of the market to develop high-end products and high value-added. Boiler manufacturing industry and is closely related to the country's economic development has become an important part of the national basic industries. Boiler manufacturing wide range of products, the main categories include: power plant boiler, power station boilers, heat boilers, industrial boilers and auxiliary boilers and other machinery; accessories to the host equipment, auxiliary equipment, pumping stations, manifolds and other varieties; to other special needs and design special equipment manufacturing facilities, etc. class.

Electric boiler automatically adjust the air-fuel industrial electric boiler for paper machine premixed combustion, the combustion air conditioning unique technology, electric boiler automatically adjusted according to the load demand air-fuel ratio, the air and gas remain in excellent mixing ratio to achieve complete combustion. Using premixed combustion technology, power regulation range of 20% to 100%, i.e. when lowering the external demand, the boiler module can adjust itself to match the output demand and, module design, the module can start to meet the required load portion, it can be maintained at the same high efficiency low load operation. fully intelligent work, thermal efficiency of 92% on average, each module can be burned separately, a real energy saving. Flexible mounting, electrical automatic modular combination boilers, a single input power to be 240kW, up to 40kW, adjustable range of 20% to 100%, in a larger change in elastic and flexible to meet the heat requirement, even if a certain module failure, additional modules can also work, will not affect the heating requirements, reliability is very high. Variety of security devices, including the flame guard, ignition failure protection, smoke protection, overheating protection, pressure protection, etc. to ensure ease of use. Adaptability of small volume, a single area of ​​0.56 square meters, light weight electric boilers can be installed in a small space, convenient maintenance. Boiler module efficient and environmentally friendly exhaust temperatures than ordinary boiler flue gas temperature, heat loss harmful emissions to meet environmental requirements, low-noise combustion technology, the noise less than 50 decibels, and adjusting the air-fuel ratio does not affect the rest.

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