Automation of combustion processes (maintaining the optimum ratio of fuel to air) which will lead to a reduction in emissions (maximum permissible emissions) into the atmosphere, eliminates the problem of excessive fuel consumption, and increases the safety of the process of heat generation.

The supply of fuel and air to the boiler furnace should be carried out in a certain ratio. Both insufficient and excessive air supply reduces the efficiency of the boiler.

Currently, in most boilers, the optimal combustion mode is achieved by maintaining the pressure of fuel-air ratio in accordance with the restricted card. Such a method is not sufficiently effective; it does not allow for changes in temperature and humidity, the calorific value of the fuel temperature, or other external factors. In this method, the preparation of regime cards allows the presence of a large excess of air, that under no circumstances prevents the occurrence of incomplete chemical burning. As a result, in some modes, air quantity exceeds the optimum value of 1.5 - 2 times, which increases the power consumption for its supply and makes it necessary to excessively heat the supply air, i.e. to consume additional fuel.

There are 2 ways to solve this problem:

• full automation of the process involving heat energy sources, including pumps and auxiliary equipment (APCS).
• partial (only boilers) automation (ACS).

All control of technological processes at their sources occurs automatically. With the help of a programmable controller device (the lower level of the automated process control system), control of the technological process is carried out by the operating personnel from the control panel through a personal computer with a process control mnemonic (the upper level of the automated process control system).

Attendants only give commands to "start" or "stop" this or that equipment, or make their adjustments to the technological process of the heat source. In practice, automated control systems are using stationary gas analyzers, based on measuring the concentration of carbon monoxide (CO).

ACS TP allows solving the following tasks:

• automatic preparation of the boiler unit for ignition;

• automatic ignition of the burners of the boiler with the transition to the minimum power mode;

• load control and optimization of the fuel-air ratio of each of the burners of the boiler;

• thermal management of the boiler;

• regulation of the temperature of the network water at the outlet of the boiler room, depending on the outdoor temperature;

• protection, alarm and blocking of the boiler during malfunctions;

• automatic control of air pressure for combustion (control of the frequency converter of the combustion air blower motor) depending on the gas pressure in accordance with the mode map (or taking into account the signals of the gas analyzer);

• automatic regulation of the vacuum in the boiler furnace (control of the frequency converter of the electric motor of the fan of the exhauster);

• providing operational and technological personnel with information on the parameters of the thermal regime and the state of the process equipment;

• registering in real time the technological process parameters and actions of operating personnel;

• recording and archiving information;

• presentation of archival information and calculation of results.

The specialists of our company do the following:

• develop the working draft and design and estimate documentation;

• develop the algorithm of the boiler ACS in accordance with the technical specifications;

• develop mnemonic schemes, working screens, and ways of presenting information of the controller of the automated workplace (automated workplace of the operator);

• equipment: manufacture control panels, supply valves and necessary equipment, sensors and actuators (devices for metering gas consumption and heat generation by the boiler, stationary gas analyzer for the composition of exhaust gases, solenoid valves, valve actuators, rotational speed converters for electric motors of blower equipment, etc.

• supply materials: pipes, flanges, fittings, fasteners, cable products, etc.);

• install gas, thermal mechanical, electrical equipment and automated control systems;

• SCADA-system acquisition - for receiving, processing information about the operation of the boiler and boiler auxiliary equipment, and transferring it to the required places (software, computer, information display device);

• start-up: commissioning of a set of automatic controls for the boiler operation;

• adjust the control system of converters of rotation frequency of electric motors of the powder-blowing equipment;

• perform thermal testing of the boiler in various modes with the development of a regime map, design and issue a technical report on the work performed;

• adjust SCADA-system. Train personnel;

• develop operating instructions;

• Develop technical specifications for the reconstruction - the maximum use of existing boiler equipment is a priority.

Fill in the questionnaire: Download