A pile of hot water boilers. Devices and automation of boiler rooms. Service contract for security automation

Boiler plants are located to reduce costs and increase efficiency. All equipment is divided into main and auxiliary. Boiler installations can be located in one or more rooms in the enterprise.

Main and auxiliary equipment

is a building or separate room, in which liquids or coolants involved in production, heating and product release are heated. The coolant from the boiler room can be supplied to its destinations via heating mains and pipelines.

Boiler equipment comes in three types:

• heating;
• industrial - heating;
• energetic.

The underlying equipment remains almost unchanged. The boiler includes a water economizer, a firebox, an air and steam heater, and a fitting. For ease of maintenance, boiler installations are equipped with stairs and platforms.

Boiler room auxiliary equipment:

• traction equipment;
• controllers;
• pipelines;
• automation systems;
• water treatment devices;
• other equipment to assist in production.

The process of boiler room operation at the enterprise:

• With the help of equipment and with the help of maintenance personnel, fuel is loaded into the furnace.
• The air required for combustion is heated in the air heater to achieve savings in fuel consumption.
• The fuel combustion process provides air flow. Oxygen is supplied naturally through a grate or using a blower fan.
• Combustion products enter a separate cavity, where they cool, and are removed through the chimney using
• Water, having gone through several stages of purification, enters the
• When heated, the water evaporates, accumulates in the drum and enters the steam collector, after which it is distributed to distribution points through pipelines for heating needs.

This is how a steam boiler works and produces steam used in production and heating. Savings are achieved by automating processes; manifolds and controllers are used to supply or shut off liquids and steam.

Process automation

Boiler automation is a complex process, it allows you to reduce human labor costs and increase the level of security at the enterprise. The main work comes down to constant monitoring of the controller. The dispatcher must constantly monitor the indicators and set the necessary parameters for different technological stages production using a controller and remote control.

Read also: Block-modular boiler house

When emergency situations or emergency interruption of the supply of one of the production elements (water, oil, electricity) to The remote control sends a signal to the dispatcher indicating a problem has occurred.. The dispatcher is obliged to react in time and turn on the light or sound notification. When automating boiler equipment should turn off on its own; To continue work in production, replacement, backup equipment is usually used.

The controller or control unit is the basis of the entire heating automation system. The controller is responsible for all processes and automation operations. The controller can be controlled remotely, using a remote control and even cell phone. Using a “smart” unit, you can keep various logs tracking indicators and then make an analysis of the heating dynamics.

State Register No. 25264-03. Certificate of the State Standard of the Russian Federation on type approval SI No. 15360 dated July 16, 2003.
Verification method MI2124-90, verification interval 2 years.

Pressure gauges deformation type DM 02
The body is painted steel (black), the mechanism is brass.
Instrument glass, radial fitting (down).
Temperature of the measured medium up to +160°С (for a diameter of 63 mm up to +120°С).

There are also vacuum gauges and pressure and vacuum gauges. On high pressure by order.

Deformation pressure gauges Type DM 15
Axial (fitting in the rear center).
Execution type DM02.
Temperature of the measured medium up to +120°С.

Deformation pressure gauges Type DM 90
Case and mechanism made of of stainless steel, instrument glass.
The fitting is radial (down).
Temperature of the measured medium up to +160°С.

Deformation pressure gauges Type DM 93
Stainless steel case, brass mechanism, polycarbonate glass.
Hydraulic filling of the body with glycerin, radial fitting (down).
Temperature of the measured medium up to +60°С.

Vacuum gauges and pressure-vacuum gauges. 3-way brass valves for pressure gauges

We also supply:
Vacuum gauges and pressure-vacuum gauges
3-way brass valves for pressure gauges
from 78 rub. (made in Italy) PN 16 temp. up to +150°С.
State checking pressure gauges increases the cost by 45 rubles. per piece
Performed at the customer's request. Verification period is 3-10 working days.

designed for measuring pressure of various media and controlling external electrical circuits from the signaling device direct action by turning on and off contacts in alarm, automation and blocking circuits technological processes.

Water indicator equipment for boilers

Liquid level indicators 12kch11bkused in steam boilers, vessels, apparatus, liquid reservoirs with Ru25 and t=250 deg. C and other liquid non-aggressive media, steam and ethyl mercaptan.
Body material: malleable cast iron - KCh30-6.
The pointer consists of a body, a cover, an upper and lower tube and an index glass. The reflection and refraction of light rays in the glass edges provides an indication of the level of the liquid, which takes on a dark tint.
The connection between the cover and the body is bolted.

Drawing and dimensions:

Specifications:

consist of lower and upper taps. Quartz glass tubes are also used as a level indicator.

Specifications:

Quartz glass tubes

Clear Quartz Glass Tubesused for measuring liquid levels, for electric heating devices, for various instruments and devices and are designed to operate at temperatures up to 1250 o C.
Tubes intended for installation in taps of shut-off devices for liquid level indicators must have outside diameter 20 mm and withstand maximum pressure 30 kgf/cm 2 . The ends of the tubes are cut and ground before installation.

Main tube sizes:

Physical properties of quartz glass

Quartz glass has a number of unique properties, unattainable for other materials.
Its coefficient of thermal expansion is extremely low.
The transformation point and softening temperature of quartz are very high.
On the other hand, quartz's low coefficient of thermal expansion gives it unusually high heat resistance.
The electrical resistance of quartz is significantly higher than that of the best silicate glasses. Quartz does it excellent material for the production of insulating elements that operate when heated.

Porthole viewing glassesflat designed for windows industrial installations and observation lights.
Viewing windowsare designed for visual monitoring of the presence of a flow of various media in technological processes of the food, chemical, oil refining, construction and other industries.
Also, these glasses (untempered) are used by astronomers as blanks for mirrors.

Glass is divided into:

according to composition and manufacturing method:

• type A - non-tempered sheet glass,
• type B - tempered sheet glass,
• type B - tempered from heat-resistant glass (produced from 01/01/91, in this moment are practically not produced)
• type G - made of quartz glass;

according to form:

• round (types A, B, C, D),
• rectangular (type A).

Glass diameters - from 40 to 550 mm, standard thicknesses: 8, 6, 10, 12, 15, 18, 20, 25 mm.

Instrumentation and automation (instrumentation and automation) are designed to measure, control and regulate temperature, pressure, water level in the drum and provide safe work heat generators and heat power equipment of the boiler room.

1. Temperature measurement.

To measure the temperature of the working fluid, manometric and mercury thermometers are used. A stainless steel sleeve is welded into the pipeline, the end of which should reach the center of the pipeline, it is filled with oil and a thermometer is lowered into it.

Manometric thermometer consists of a thermal bulb, a copper or steel tube and a tubular spring of oval cross-section, connected by a lever transmission with an indicating arrow.

Rice. 3.1. Manometric thermometer

1-thermal cylinder; 2-connection capillary; 3-thrust; 4-arrow; 5-dial; 6-gauge spring; 7-tribe-sector mechanism

The whole system is filling up inert gas(nitrogen) under pressure 1...1.2 MPa. As the temperature rises, the pressure in the system increases, and a spring moves the pointer through a system of levers. Showing and recording manometric thermometers stronger than glass and allow the transmission of readings over a distance of up to 60 m.

Action resistance thermometers– platinum (TSP) and copper (TCM) based on the use of the dependence electrical resistance substances depending on temperature.

Rice. 3.2. Resistance thermometers platinum, copper

Action thermoelectric thermometer based on the use of the thermoEMF dependence of the thermocouple on temperature. A thermocouple as a sensitive element of a thermometer consists of two dissimilar conductors (thermoelectrodes), one ends of which (working) are connected to each other, and the other (free) are connected to measuring device. At different temperatures working and free ends in the circuit of a thermoelectric thermometer, an emf arises.

Most widespread have thermocouples of the TXA (chromel-alumel) and THK (chromel-kopel) types. Thermocouple for high temperatures placed in a protective (steel or porcelain) tube, Bottom part which is protected by a cover and a lid. Thermocouples have high sensitivity, low inertia, and the ability to install recording instruments on long distance. The thermocouple is connected to the device using compensation wires.

2. Pressure measurement.

To measure pressure, barometers, pressure gauges, vacuum gauges, draft meters, etc. are used, which measure barometric or overpressure, as well as vacuum in mm water. Art., mm Hg. Art., m water. Art., MPa, kgf/cm2, kgf/m2, etc. To control the operation of the boiler furnace (when burning gas and fuel oil), the following devices can be installed:

1) pressure gauges (liquid, membrane, spring) - show the fuel pressure on the burner after the operating valve;

Rice. 3.3. Strain gauges:

1 - membrane; 2 - active and compensating strain gauge; 3 - console; 4-arrow

2) pressure gauges (U-shaped, membrane, differential) - show the air pressure on the burner after the control valve;

3) draft meters (TNZh, membrane) - show the vacuum in the firebox.

Liquid thrust gauge(TNZh) is used to measure low pressures or vacuums.

Rice. 3.4. Thrust pressure meter type TNZh-N

To obtain more accurate readings, draft meters with an inclined tube are used, one end of which is lowered into a vessel of large cross-section, and alcohol (density 0.85 g/cm 3) tinted with magenta is used as the working fluid. The can is connected with the “+” fitting to the atmosphere (barometric pressure), and alcohol is poured through the fitting. Glass tube The “−” fitting (vacuum) is connected to the rubber tube and the boiler firebox. One screw sets the “zero” of the tube scale, and the other sets the horizontal level on the vertical wall. When measuring vacuum, the impulse tube is connected to the “−” fitting, and barometric pressure is connected to the “+” fitting.

Spring pressure gauge designed to indicate pressure in vessels and pipelines and is installed in a straight section. The sensitive element is a brass oval-curved tube, one end of which is mounted in a fitting, and the free end, under the influence of the pressure of the working fluid, is straightened (due to the difference in the internal and external areas) and, through a system of traction and a gear sector, transmits force to a pointer mounted on the gear. This mechanism is located in

case with a scale, covered with glass and sealed. The scale is selected so that at operating pressure the pointer is in the middle third of the scale. The scale should have a red line indicating the permissible pressure.

IN electrical contact pressure gauges The ECM has two fixed fixed contacts on the scale, and a moving contact on the working pointer.

Rice. 3.5. Pressure gauge with electrical contact attachment TM-610

When the arrow touches a fixed contact, an electrical signal from them is sent to the control panel and the alarm is activated. A three-way valve must be installed in front of each pressure gauge for purging, checking and shutting it off, as well as a siphon tube (hydraulic seal filled with water or condensate) with a diameter of at least 10 mm to protect the internal mechanism of the pressure gauge from exposure to high temperatures. When installing a pressure gauge at a height of up to 2 m from the level of the observation platform, the diameter of its body must be at least 100 mm; from 2 to 3 m – at least 150 mm; 3…5 m – not less than 250 mm; at a height of more than 5 m, a reduced pressure gauge is installed. The pressure gauge must be installed vertically or tilted forward at an angle of up to 30° so that its readings are visible from the level of the observation platform, and the accuracy class of the pressure gauges must be at least 2.5 - at pressures up to 2.5 MPa and not below 1, 5 – from 2.5 to 14 MPa.

Pressure gauges are not allowed for use if there is no seal (stamp) or the inspection period has expired, the needle does not return to zero on the scale (when the pressure gauge is turned off), the glass is broken or there is other damage. The seal or mark is installed by Gosstandart during inspection once a year.

Checking the pressure gauge should be carried out by the operator upon each shift acceptance, and by the administration at least once every 6 months using a control pressure gauge. The pressure gauge is checked in the following sequence:

1) visually notice the position of the arrow;

2) use the handle of a three-way valve to connect the pressure gauge to the atmosphere - the arrow should go to zero;

3) slowly turn the knob to its previous position - the arrow should return to its previous (before checking) position;

4) turn the tap handle clockwise and put it in a position in which the siphon tube will be connected to the atmosphere - for purging; 5) turn the tap handle to reverse side and set it for a few minutes in a neutral position, in which the pressure gauge will be disconnected from the atmosphere and from the boiler - to accumulate water in the lower part of the siphon tube;

6) slowly turn the tap handle in the same direction and return it to its original position working position– the arrow should return to its original place.

To check the accuracy of the pressure gauge readings, a control (model) pressure gauge is attached to the control flange with a bracket, and the valve handle is placed in a position in which both pressure gauges are connected to the space under pressure. A working pressure gauge should give the same readings as the control pressure gauge, after which the results are recorded in the control check log.

Pressure gauges must be installed on boiler room equipment:

1) in a steam boiler unit - heat generator: on the boiler drum, and if there is a superheater - behind it, to the main valve; on the supply line in front of the valve that regulates the water supply; on the economizer - water inlet and outlet to the shut-off valve and safety valve; on

water supply network– when using it;

2) in a water heating boiler unit - heat generator: at the water inlet and outlet up to shut-off valve or valves; on suction and discharge lines circulation pumps, located at the same height; on heating supply lines. On steam boilers with a steam output of more than 10 t/h and hot water boilers with a heating output of more than 6 MW, the installation of a recording pressure gauge is required.

3. Water indicators.

When a steam boiler is operating, the water level fluctuates between the lowest and highest positions. The lowest permissible level (LAL) of water in the drums of steam boilers is set (determined) to eliminate the possibility of overheating of the metal walls of the boiler elements and to ensure reliable flow of water into the downpipes of the circulation circuits. The position of the highest permissible level (HPL) of water in the drums of steam boilers is determined from the conditions for preventing water from entering the steam pipeline or superheater. The volume of water contained in the drum between the highest and lower levels, determines the “power supply”, i.e. time allowing the boiler to operate without water entering it.

On every steam boiler At least two direct action water level indicators must be installed. Water indicators should be installed vertically or tilted forward, at an angle of no more than 30°, so that the water level is clearly visible from the workplace. Water level indicators are connected to the upper drum of the boiler using straight pipes up to 0.5 m long and an internal diameter of at least 25 mm or more than 0.5 m and an internal diameter of at least 50 mm.

In steam boilers with pressures up to 4 MPa, water-indicating glass (VUS) is used - devices with flat glass with a corrugated surface, in which the longitudinal grooves of the glass reflect light, making the water appear dark and the steam light. The glass is inserted into a frame (column) with a viewing slit width of at least 8 mm, on which the permissible upper water level and lower water level must be indicated (in the form of red arrows), and the height of the glass must exceed the permissible measurement limits by at least 25 mm with each side. The NDU needle is installed 100 mm above the boiler firing line.

Fire line- this is the highest point of contact of hot flue gases with a non-insulated boiler element wall.

Water indicating devices for disconnecting them from the boiler and carrying out purging are equipped with shut-off valves(taps or valves). The fittings must be clearly marked (cast, embossed or painted) in the direction of opening or closing, and the internal diameter of the passage must be at least 8 mm. To drain water during purging, a double funnel with protective devices and a discharge pipe for free drainage, and a purge valve is installed on the boiler fire line.

The boiler room operator must check the water indicator glass using the blowing method at least once per shift, for which he should:

1) make sure that the water level in the boiler has not dropped below the minimum level;

2) visually notice the position of the water level in the glass;

3) open the purge valve - the steam and water valves are purged;

4) close the steam valve, blow out the water valve;

5) open the steam tap - both taps are purged;

6) close the water tap, blow out the steam;

7) open the water tap - both taps are ventilated;

8) close the purge valve and observe the water level, which should rise quickly and fluctuate around the previous level if the glass was not clogged.

Do not close both taps when the purge tap is open, as the glass will cool down and if it gets in contact with hot water may burst. If, after blowing, the water in the glass rises slowly or has occupied a different level, or does not fluctuate, then it is necessary to repeat the blowing, and if repeated blowing does not produce results, it is necessary to clean the clogged channel.

A sharp fluctuation in water characterizes abnormal boiling due to high content salts, alkalis, sludge or the extraction of steam from the boiler more than it is produced, as well as the combustion of soot in the boiler flues.

A slight fluctuation in the water level characterizes partial “boiling” or clogging of the water tap, and if the water level is higher than normal, “boiling” or clogging of the steam tap. When the steam tap is completely clogged, the steam above the water level condenses, causing water to completely and quickly fill the glass to the very top. If the water tap is completely clogged, the water level in the glass will slowly rise due to steam condensation or will take a calm level, the danger of which is that, without noticing fluctuations in the water level and seeing it in the glass, you might think that there is enough water in the boiler.

It is unacceptable to increase the water level above the air pressure limit, as water will flow into the steam line, which will lead to water hammer and rupture of the steam line.

When the water level drops below the NDU, it is strictly forbidden to feed the steam boiler with water, since in the absence of water the metal of the boiler walls becomes very hot, becomes soft, and when water is supplied to the boiler drum, strong steam formation occurs, which leads to a sharp increase in pressure, thinning of the metal, the formation of cracks and pipe rupture.

If the distance from the water level observation site is more than 6 m, as well as in case of poor visibility (lighting) of the instruments, two lowered remote level indicators must be installed; in this case, one direct-acting VUS can be installed on the boiler drums. Reduced level indicators must be connected to the drum on separate fittings and have a damping device.

4. Measuring and regulating the water level in the drum.

Diaphragm differential pressure gauge(DM) is used for proportional control of the water level in drum steam boilers.

Rice. 3.6. Diaphragm indicating differential pressure gauge with vertical diaphragm

1 - “plus” camera; 2 - “minus” camera; 5 - sensitive corrugated membrane; 4- transmitting rod; 5 - transmission mechanism; 6 - safety valve and, accordingly, an index arrow, counting the measured pressure on the scale of the device

The pressure gauge consists of two membrane boxes communicating through a hole in the diaphragm and filled with condensate. The lower membrane box is installed in the positive chamber filled with condensate, and the upper one is installed in the negative chamber filled with water and connected to the measured object (the upper drum of the boiler). The core of the induction coil is connected to the center of the upper membrane. At an average water level in the boiler drum, there is no pressure drop and the membrane boxes are balanced.

As the water level in the boiler drum increases, the pressure in the minus chamber increases, the membrane box contracts, and the liquid flows into the lower box, causing the core to move downward. In this case, an EMF is generated in the coil winding, which sends a signal through the amplifier to the actuator and closes the valve on the supply line, i.e. reduces the flow of water into the drum. When the water level drops, the DM operates in the reverse order.

Level column The control unit is designed for positional control of the water level in the boiler drum.

Rice. 3.7. Level column UK-4

It consists of a cylindrical column (pipe) with a diameter of about 250 mm, in which four electrodes are installed vertically, capable of controlling the highest and lowest permissible water levels (VDU and NDU), the highest and lowest operating water levels in the drum (VRU and NRU), the operation of which based on the electrical conductivity of water. The column is connected on the side to the steam and water volume of the boiler drum using pipes with taps. At the bottom of the column there is a purge valve.

When the water level of the ASU is reached, the relay turns on and the contactor breaks the power circuit magnetic starter, turning off the feed pump drive. The water supply to the boiler stops. The water level in the drum decreases, and when it drops below the NRU, the relay is de-energized and the feed pump is turned on. When the water level of the VDU and NDU is reached, an electrical signal from the electrodes goes through the control unit to the fuel supply cutoff to the furnace.

5. Instruments for measuring flow.

Flow meters are used to measure the flow of liquids (water, fuel oil), gases and steam:

1) high-speed volumetric, measuring the volume of liquid or gas by flow velocity and summing up these results;

2) throttling, with variable and constant differential pressure or rotameters.

In the working chamber high-speed volumetric flow meter(water meter, oil meter) a vane or spiral turntable is installed, which rotates from the liquid entering the device and transmits the flow rate to the counting mechanism.

Volumetric rotary counter(RG type) measures the total gas flow up to 1000 m 3 / h, for which two mutually perpendicular rotors are placed in the working chamber, which are driven into rotation under the influence of the pressure of the flowing gas, each revolution of which is transmitted through gears and a gearbox to the counting mechanism.

Throttle flow meters with a variable pressure drop have restriction devices - normal diaphragms (washers) chambered and tubeless with a hole smaller than the cross-section of the pipeline.

When the flow of medium passes through the hole of the washer, its speed increases, the pressure behind the washer decreases, and the pressure difference before and after the throttling device depends on the flow rate of the measured medium: than more quantity substances, the greater the difference.

The pressure difference before and after the diaphragm is measured by a differential pressure gauge, from the measurements of which the speed of fluid flow through the washer hole can be calculated. A normal diaphragm is made in the form of a disk (made of stainless steel) 3...6 mm thick with a central hole having a sharp edge, and should be located on the liquid or gas inlet side and installed between the flanges on a straight section of the pipeline. The pressure pulse to the differential pressure gauge is produced through holes from the annular chambers or through an hole on both sides of the diaphragm.

To measure steam flow on impulse tubes, equalizing (condensation) vessels are installed to the differential pressure gauge, designed to maintain constant condensate levels in both lines. When measuring gas flow, the differential pressure gauge should be installed above the restriction device so that condensate formed in the impulse tubes can flow into the pipeline, and impulse tubes along the entire length must have a slope towards the gas pipeline (pipeline) and be connected to the upper half of the washer. Calculation of diaphragms and installation on pipelines is carried out in accordance with the rules.

6. Gas analyzers are designed to monitor the completeness of fuel combustion, excess air and determine the volume fraction in combustion products carbon dioxide, oxygen, carbon monoxide, hydrogen, methane.

Based on their operating principle, they are divided into:

1) chemical(GHP, Orsa, VTI), based on the sequential absorption of gases included in the analyzed sample;

2) physical, working on the principle of measurement physical parameters(density of gas and air, their thermal conductivity);

3) chromatographic based on adsorption (absorption) of components gas mixture a certain adsorbent ( activated carbon) and their sequential desorption (release) during the passage of a column with an adsorbent gas.

To regulate and optimize the functioning of boiler units technical means began to be used in initial stages automation of industry and production. The current level of development in this area can significantly increase the profitability and reliability of boiler equipment, ensure the safety and intellectualization of the work of operating personnel.

Tasks and goals

Modern boiler room automation systems are able to guarantee trouble-free and efficient operation of equipment without direct operator intervention. Human functions are reduced to online monitoring of the performance and parameters of the entire complex of devices. Boiler room automation solves the following problems:

Automation object

How the object of regulation is complex dynamic system with many interconnected input and output parameters. Automation of boiler houses is complicated by the fact that the speed of technological processes in steam units is very high. The main adjustable quantities include:

• coolant flow and pressure (water or steam);
• vacuum in the furnace;
• level in the feed reservoir;
• V last years increased environmental requirements are imposed on the quality of the prepared fuel mixture and, as a consequence, to the temperature and composition of smoke removal products.

Automation levels

The degree of automation is set when designing a boiler room or during major repairs/replacement of equipment. Can range from manual regulation based on instrument readings to completely automatic control according to weather-dependent algorithms. The level of automation is primarily determined by the purpose, power and functional features equipment operation.

Modern automation of boiler room operation implies A complex approach- subsystems for monitoring and regulation of individual technological processes are combined into a single network with functional group control.

General structure

Boiler room automation is built on a two-level control scheme. The lower (field) level includes local automation devices based on programmable microcontrollers that implement technical protection and blocking, adjustment and change of parameters, and primary converters of physical quantities. This also includes equipment designed for converting, encoding and transmitting information data.

The upper level can be presented in the form of a graphic terminal built into the control cabinet or an automated operator workstation based on personal computer. All information coming from lower-level microcontrollers and system sensors is displayed here, and operational commands, adjustments and settings are entered. In addition to process dispatching, problems of mode optimization and diagnostics are solved technical condition, analysis economic indicators, archiving and data storage. If necessary, information is transferred to common system enterprise management (MRP/ERP) or locality.

The modern market is widely represented by both individual instruments and devices, and automation kits of domestic and imported production for steam and hot water boilers. Automation tools include:

• ignition control and flame presence equipment that starts and controls the fuel combustion process in combustion chamber boiler unit;
• specialized sensors (thrust pressure meters, temperature, pressure sensors, gas analyzers, etc.);
• (solenoid valves, relays, servos, frequency converters);
• control panels for boilers and general boiler equipment (remotes, touch screens);
• switching cabinets, communication lines and power supply.

When choosing management and control, the most close attention attention should be paid to automatic safety, excluding the occurrence of abnormal and emergency situations.

Subsystems and functions

Any boiler room includes control, regulation and protection subsystems. Regulation is carried out by maintaining optimal mode combustion by setting the vacuum in the furnace, primary air flow and coolant parameters (temperature, pressure, flow). The control subsystem displays actual data on the operation of the equipment to the human-machine interface. Protection devices guarantee the prevention of emergency situations in case of violation of normal operating conditions, giving a light or sound signal or stopping boiler units with recording of the cause (on a graphic display, mnemonic diagram, panel).

Communication protocols

Microcontroller-based automation minimizes the use of functional diagram relay switching and control power lines. To communicate the upper and lower levels of the automated control system, transfer information between sensors and controllers, and broadcast commands to actuators, an industrial network with a specific interface and data transfer protocol is used. The most widely used standards are Modbus and Profibus. They are compatible with the bulk of equipment used to automate heat supply facilities. They are distinguished by high levels of reliability of information transmission, simple and understandable operating principles.

Energy saving and social effects of automation

Automation of boiler houses completely eliminates the possibility of accidents involving the destruction of permanent structures and the death of operating personnel. The automated control system is capable of ensuring the normal functioning of equipment around the clock and minimizing the influence of the human factor.

In light of the continuous rise in prices for fuel resources, the energy-saving effect of automation is not least important. Saving natural gas, reaching up to 25% per heating season, is provided:

• optimal gas/air ratio in the fuel mixture in all operating modes of the boiler room, correction for the level of oxygen content in combustion products;
• the ability to individually configure not only boilers, but also;
• regulation not only of the temperature and pressure of the coolant at the inlet and outlet of the boilers, but also taking into account the parameters environment(weather dependent technologies).

In addition, automation allows you to implement an energy-efficient heating algorithm non-residential premises or buildings not used on weekends and holidays.