Modular boiler plants on solid fuel. Solid fuel boiler

Autonomous modular coal boilers are designed to heat residential and industrial premises Large square. In the design of the block module, everything is necessary, for full heating, equipment. At the request of the customer, coal BMK are equipped with a service room, a bathroom for service personnel.

How the BMK works and works on the corner

Autonomous modular boiler room on the corner is a heat station, with a capacity from 0.4 to 10 MW. BMK performance is enough to dig a cottage house, apartment building And a whole village. If necessary, to increase productivity, several boilers are connected to a single network.

It is customary to classify the modules by type of design, the method of supplying fuel and the degree of automation:

The operation of coal BMK is identical to the one that is carried out on state CHP. The resulting heat is supplied through the pipeline connected to the system heating of the premises. In the boiler room installed pump equipmentcreates pressure in the water circuit.

What should be in BMK on the corner

The layout of coal BMK varies, depending on: actual needs, technical features Buildings, wishes of the customer and other parameters. The following components and systems are present in the standard configuration:

Water hardware - coal automatic modular boiler rooms are completed with several boilers, for the main and reserve heat supply. Equipment capacity, heat exchanger design and availability contour of GVS.Discussed separately.
Pumping equipment - creates required pressure In the heating system. Selected taking into account the overall heated area and the volume of the coolant.
Water treatment and filtering system.
Shut-off and regulating fittings.
System of self-cleaning.
Chimney and chimneys.
Automation and driving machines.
Shield for connecting to the power grid.

The device of block-modular boiler rooms on the corner may vary, depending on the wishes of the customer. If necessary, BMK is completed by office space: control room, plumbing nodes, etc.

The modular mechanized boiler room on the corner is supplied with a transport transmission of fuel and a bunker installed outside the building or mounted on the roof of BMK.

Coal Warehouse for BMK

The loading of coal in BMK is carried out by manual or mechanized methods. In each case, it is calculated where the fuel warehouse will be:

BMK with manual loading - as a fuel warehouse, used separately standing room With a high degree of fire resistance. The volume of the repository is calculated in such a way that the fuel reserves are enough for at least two months of continuous operation of the boiler room.
Modular boiler room with mechanized loading - the bunker is installed as part of the BMK design or outside the boiler room. It is allowed to install the roof storage facility. Between the storage and the boiler, withstand the minimum distance of 1 m, they establish a septum from non-combustible materials.
Equipment of automated coal block-modular boiler room grounds, install a system that prevents fire from the boiler in the repository.

Most models stationary type, It is possible to connect automatic coal supply, after entering the station. Re-equipment is performed in a few days.

Producers of modular coal boiler houses

Water-heating block-modular boiler plants on coal fuel, offer the largest Russian manufacturers. BMK is supplied completely ready-to-use. The equipment is specified during the order.

At the request of the customer, the brand of the manufacturer of the heating and circulation equipment is selected. BMK works on factory settings, providing maximum efficiency and heat transfer. One of the largest enterprises offering block-modular boiler houses to Russian consumers are:

Rosenergoprom.
Boiler unit.
Energorosstroy.
Oil and gas development, etc.

Basic approximate prices for coal BMK

The cost of BMK on the coal depends on the manufacturer, the degree of automation, the number of installed boilers, etc. For example, it is possible to bring rates for the products of the company KZ RosEnergoprom.

The BMK is 0.4 MW, in the basic configuration, including the installation cost, will cost 1.9-2 million rubles.
A fully autonomous station by 4.4 MW (included a system of mechanization of coal supply, automatic zerolation), will cost 9.6 million rubles.

Commissioning works are performed by company representatives. At the design stage, it is necessary to make sure that the cost specified in the price list includes installation. Installation work and commissioning, otherwise, will cost 10-15% of the total value of BMK.

The advantages of a small-sized BMK working on a stone coal are its low weight and dimensions that allow you to install directly on the roof of the building.

Norms for the placement of coal BMK

Each modular boiler room, after installation, undergoes a mandatory certification for compliance with the requirements of PPB. Commissioning is carried out only when performing all fire safety requirements:

The security area of \u200b\u200bthe block-modular boiler room on coal fuel from the residential zone is taken into account two factors. First - which room is used under the repository (open or closed type). The second noise characteristics of working smokers.
Closed-type bins are made at least 100 meters from residential buildings, an exception is BMK, in which the repository is located directly inside the boiler room.
Open storages put 500 meters from houses. In urban development, the installation of the boiler and the fuel hopper on the roof of the building is allowed, while it is set to an additional noise-absorbing protection.
Safety requirements for coal BMK. The room, due to the accumulation of explosive coal dust, is equipped with hermetic lighting devices With a protective casing.
There is a need for system automatic fire extinguishing and signaling. An integral requirement fire inspection is the installation of a shield with means individual protection and fire extinguishing.
Power consumption of coal BMK - Connection is performed through the shield installed in BMK. Install grounding and automata for each source of power consumption. Shield installed outside boiler room. Inside BMK, over doorwaysMounted signs with the inscription "Exit" operating, regardless of the main source of power supply.
BMK is passed mandatory certification And gets permission to operate in Rostechnadzor.
The project organization prepares the rationale for the installation of the modular coal boiler room, and the location of the fuel warehouse from residential and industrial premises.
Admission and commissioning is carried out in the presence of a fire inspector and a representative of the manufacturer. After checking, violations are indicated and the error correction period is given. After the elimination of shortcomings, the technical documentation puts a stamp on the commissioning of BMK into operation.

Modular boiler rooms are collected and completed in the factory. Obtaining a quality certificate from Rostekhnadzor and fire service, (documents necessary for commissioning), fully falls on the manufacturer and design organization.

Modular coal boilers are especially in demand in regions where there is no gasification, as coal is the most common and cheap fuel type. Modular coal boilers provide heating and hot water supply, as well as ferry various objects. Boiler plant manufactures water-heating modular boiler mCs 0.4 Gcal, MCA 0.6 Gcal, MCA 0.8 Gcal, MCU 1.1 Gcal, MCU 1.6 Gcal, MCU 1.8 Gcal, MCU 2.2 Gcal, MCU 2 , 4 Gcal, MCU 3.3 Gcal, MCU 4.4 Gcal, MCU 1 MW, MCU 2 MW, MCU 3 MW, MCU 4 MW, MCU 5 MW, MCU 6 MW, MCU 7 MW, MCU 8 MVT, MCU 9 MW, MCU 10 MW. And steam modular coal boiler mKU 300 kg of a pair per hour, MCU 500 kg of a pair per hour, MCU 700 kg of a couple per hour, MCU 1000 kg of a pair per hour.

The main advantages of modular boiler installations

individual projects of modular boiler rooms - production of blocking modular boiler houses required power for heating and hot water supply of a particular object;
the optimal selection of boiler equipment - the equipment is coordinated with the customer (equipment of both domestic and foreign production);
ensuring autonomous work from centralized heat supply networks;
the possibility of repeated installation and dismantling the boiler installation and its transportation;
short deadlines for installation and commissioning of modular boiler installations.

Depending on the power of the modular boiler room, it may consist of one or more blocks. The modular boiler room is a metal welded frame, a sandwich-covered panels and insulated mineral fireproof Vata.. Inside the framework in the factory conditions is installed all boiler equipment. Steam or water-heating boilers, smokers and ashlasters, fans and heat exchangers, water treatment equipment, fuel supply and removal of ash and slag are installed.

Modular coal boilers can be installed separately worth the building attached or built into the existing room. Coal boiler room happens with manual fuel supply and removal of ash and slag. To facilitate labor-intensive processes apply different kinds conveyors. Modular boiler rooms must be equipped with blast fans, crushers and metal trap.

Modular boiler equipment can be installed both domestic and imported production. Modular boiler rooms can be made according to a two-circuit diagram with the installation of heat exchangers and according to a single-circuit pattern. Water used in the boiler house is cleaned by filters from dirt and different impurities, as well as softening to exclude the formation of scale.

Fuel storage are installed warehouses. Before the fuel supply to the boiler, coal passes the stage of capturing the metal and crushing.

Customer can choose typical project Future modular boiler room, but it is possible to order a non-standard project, taking into account the nature of the terrain and working conditions. The customer draws up a questionnaire, which indicates all the parameters of the modular coal boiler room. The main parameters include the power of the boiler room, the characteristic of the coal used, the length of the heating main, the type of boiler room, the composition of the supply water and many other parameters.

Based on the questionnaire, a project is drawn up. After agreeing the project in supervisory bodies Begins the production of boiler house at the factory. Frame is made with equipment installed in it. The blocks manufactured at the factory go to the place of installation, where the foundation, access roads and storage facilities have already been prepared. The foundation establishes blocks and connect them between themselves into a single building, connect to engineering communications. At the end of the installation, commissioning works are carried out in order to verify technical documentation, quality mounting work. The test of the boiler house is carried out in idle mode and under load. All faults and shortcomings are revealed, which are eliminated. After signing the documentation in the supervision bodies, the modular boiler room is commissioned.

The cost of modular coal boiler houses

The cost of the modular coal boiler room is determined according to the technical task, after filling in the questionnaire to a modular boiler installation. In the price list you can get acquainted with the prices of modular boiler room configuration.

Transportation of modular coal boiler installations

Delivery of the modular boiler room to the place of installation is carried out by road, railway platforms, water transport.

Application of boiler rooms on solid fuel:

Boiler plants working on solid fuel are used for autonomous heat supply of non-gas objects. The advantages of solid fuel boiler houses is the low cost of material and its almost ubiquitous availability.

The feasibility of installing a solid fuel boiler room is often dictated by the availability of a fiber material. For example, woodworking boiler houses are almost universally used at the Woodworking Industry enterprises, in the areas of coal mining - coal, etc.

Often solid fuel boilers are designed with the possibility of their subsequent operation on gas. For these purposes apply. Such boilers, as a rule, begin to be operated on solid fuel, and after gasification of the object - on gas. Solid fuel can always be redundant.

Modern modular boiler rooms on solid fuel They have a block principle of design and are supplied in the form of a fully ready-to-use block module. Their work is fully automated and produced with minimal staff participation.

Modular boilers on solid fuel are very widely used in Russia due to, first of all, the low cost of heat generated. The cheapest flue material is woodworking waste. If they are presented, the heat supply of the object becomes 5 times cheaper than the use of diesel fuel, 15 times cheaper the use of electricity, 2 times cheaper than the use of coal.

Modular solid fuel boiler rooms can be operated without coordination with supervisory authorities.

Options for performing boiler rooms on solid fuel:

block-modular execution in separate transportable containers;
execution of both stationary boiler plants, with the possibility of building a building at the customer's facility;

All types of solid fuel boiler boiler factory "Kotloaggat" can be executed under any type of heat carrier; Designed as industrial or as heating.

Boilers on solid fuel production of the plant "Kotloyagregat"

Our company designs and manufactures boiler plants on solid fuel, designed to use stone coal, coconut, peat briquettes, firewood, wood pellets, woodworking waste.

By type of fuel, the installation is divided into:

It is possible to manufacture a boiler room with manual or automatic feed Machine material. When providing sufficient fuel reserve, automatic boot boilers are able to work offline without the participation of the service personnel to several weeks. Feed and ignition of fuel material as well temperature mode Managed automatics.

Modern technologies make it possible to increase the efficiency of boiler rooms. For example, pyrolysis boiler houses are widely used. They are installed gas generator boilers, which are used to generate heat not only burning firewood, but also the wood gas allocated during the process. Such boilers have a higher efficiency, as well as fewer waste.

Also our company in design solid fuel boilers The technology of long-term upper burning is widely used. It allows you to increase the combustion time of one portion of the fuel material to 70 hours. The essence of the technology is that in the boiler is not combustion, but the active deposition of the flue material by limiting the air supply.

Structure of solid fuel boiler room:

Water boilers (steel or cast iron);

Pumps;

Water preparatory installation;

Expansion tanks membrane;

Shut-off and regulatory reinforcement;

Filtering devices;

Pipeline cutting heat insulated;

Safety valves;

System interior heating and ventilation;

Knot commercial accounting heat and heat carrier;
Water supply system;
Power supply system;

Fire system;

CYPIA system

Boiler performance control system;

Household unit;

Smoke system;

Consuming bunker for fiber material;

Air supply system.

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Blocking modular boiler solid fuel

Purpose of boiler room on hard fuel - production of thermal energy by burning solid fuel and transferring it to the consumer through the heated coolant, as a result - heating of industrial and residential buildings, as well as technological premises having a temperature of the coolant to 95 єС.

The boiler room complex is a logical system of the relationships of the following processes - the provision and delivery of fuel in the building itself of the boiler room, storage and supply of fuel, its combustion and production of thermal energy.

Boiler room consists of:

Acceptance systems, storage and fuel supply;

Thermal energy generation systems when burning fuel;

Smoy gas aspiration systems;

Ash removal systems;

Control and management systems.

To ensure the manufacturability of manufacturing, reducing the volume of installation work, raising the level of maintainability and convenience of maintenance, the equipment of the boiler room is grouped into modules:

The receiving and unloading module, by means of accepting and unloading fuel from the dump truck;

The accumulative-unloading module by which the required amount of fuel is accumulated to ensure uninterrupted operation of the boiler room for 4-5 days with a nominal power, and a dosed unloading of fuel to equipment that feeds fuel to the boiler firebox;

Water heating boilers to ensure the production of thermal energy in the form of heated water to a temperature of 85 - 95 ° C;

System automated control and control to ensure current monitoring and regulating the parameters of the boiler room:

Proper quality of fuel combustion;

Pouring in the bracket volume of the boiler;

Heat production of boilers.

Technological scheme of modular boiler room on hard fuel

Delivery of fuel to the boiler room carries out motor vehicles with dump trucks, providing unloading fuel to a mechanized receiver - both side and rear. On the mechanized receiver there is a protective folding lid. Before loading the fuel, the cover opens with the help of hydraulics. Moving the fuel loaded to the receiver is carried out through moving stokers and conveyors. The process control is carried out in automatic mode from the control panel. The capacity of the unloading of the fuel supplied to the boiler is controlled by a change in the period of the reciprocating motion of the statistical pushers, which sets automatic system Boiler management. The required heating capacity of the boiler on peat, corner or firewood provides a control system based on a given temperature in a straight line of the first circuit, changing the performance of the fuel warehouse unloading. The boiler room control includes protection against equipment overloads and provides for blocking the alarm modes of operation if the limit temperature values \u200b\u200bin the furnace, water temperature in a straight line, if it falls below the maximum allowable value of water pressure in the system below.

The main equipment of boilers includes a mechanized fuel warehouse, fuel supply tools - scraper and screw, water boilers. This equipment is placed in a quick-free displeased hall of the hangar type. Accommodation additional equipment Boiler room (pumping and distribution stations, automatic control and control, water treatment facilities, membrane and expansion tanks, locking and adjusting reinforcements and other heat engineering components and aggregates) are carried out in separate heated rooms of the operator and machine compartment.

Biofuel serve renewable energy resources, so boilers are created at peat (slicing and milling), boilers on firewood and other wood forms. Poultry farms enjoy underlining material for firebox. Fuel fraction limit dimensions - 50h35ch10mm.

In such boilers, where boilers are operating at peat, boilers on firewood, fuel can be used, having a high relative humidity without preliminary drying, humidity can reach 55%.

Fuel flow circuit in boilers

Block boilers with water heat carrier

Block boilers Water heating are intended for exploiting around the clock. The operation of block water boilers is carried out on such a fuel as the milling peat, wood waste, firewood and coal, the relative humidity of these materials should not exceed 55%.

The versatility of the design of water boilers contributes to the fact that water-heating boilers are equally successfully used both in complexes for drying sawn timber and for the heating of buildings. The furnace can be equipped with a mechanized feed screw having a connector for mounting the bunker-dispenser, the supply of lump fuel can be carried out manually through a fire window.

Components of the water boiler

The temperature of the coolant is maintained from the control panel in automatic mode (with accuracy + / - 2 ° C) through the adjustment of the amount of fuel, which is fed to the combustion in the furnace. The heat exchanger contains control devices - a pressure gauge controlling the pressure of the coolant and the temperature sensor controlling the temperature on the heat exchanger reverse line. The water boiler kit includes a tyagomomer - to control the vacuum in the furnace. Minimization of heat loss and preventing overheating of the outer body of the boiler is achieved due to the additional layer of ceramic vermiculite insulation introduced into its composition. Additional cooling of the outer body of the hot water boiler is carried out through the fan of the fitting fan of the heated air. The installation case is equipped with technological hatches that are serving to access the heat exchanger. Removal of ash from under grinding at the base of the water boiler is provided by the technological hatches of ashniks.

Water heating boilers above 4000kw are available in double-block design for the convenience of transportation and installation of the boiler, and have a separate heat exchanger in the form of a superstructure.

Cottage scheme

Composition of the boiler

1 - supply pipe cold water 7 - inclined grate grille

2- Fuel Loop 8 - Fuel Loop Luke

3 - valves 9 - water flow in the heat exchanger

4 - hot water removal nozzle

5 - heat exchanger

6 - Fire gas

fuel Boiler Modular Coolant

Blocks are used in modular boiler rooms. solid fuel boilers with water heat carrier different marks Power from 100 kW to 5000 kW.

MTV series boilers. The fuel for boilers of this series can serve high-level wood waste, milling peat (relative humidity to 55%) without prior drying, dry wood waste, fuel granules, coal.

To create fuel supplies and automation of fuel feeds, it is advisable to create a fuel warehouse, with a volume of 50 to 600 m3, depending on the power of the boiler room.


Thermal power
Kpd boiler
Fuel consumption in nominal mode Wood fuel, rel. Humidity 35%)
Maximum fraction of bulk fuel
Voltage of electrical stress
Blowing fan




Mass of the boiler

Automated boiler layout on biofuel capacity 3 MW

Advantages of modular boiler installations:

1 Full set of boiler room - boiler room and fuel hopper, boiler equipment, chimney, etc.

2 Reduced capital expenditures on the construction of boiler house

3 Minimum mounting time boiler room

4 multi-fuel boiler room. Fuel types - wood chips, wood and peat briquettes, wood and peat pellets, sawdust, coal.

5 The possibility of disposal of waste of the forest processing industry, agriculture, and other industries.

6 The possibility of supplying boiler house maximum factory readiness automobile and rail transport in any place of the Russian Federation

7 Safety of boiler room

8 Full automation of boiler room

9 Availability of managing boiler in the Internet

10 Availability of operational information on the state of the boiler room on a mobile phone

11 Automatic zololation

12 High efficiency of the boiler room

13 high reliability boiler

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Installation of boiler houses for private houses and industrial enterprises

Installation of the heating unit, installation of the pipeline and automation. Assembling elevator assemblies, caloriephs and ventilation vehicles.

Solid fuel is one of the most affordable, solid fuel boiler room can be installed in any region without binding to gas pipelines or the need to regularly deliver liquid fuel. They are especially popular in the coal mining and neighboring regions.

Modular boiler rooms on solid fuel can use in their work: coal different varieties, peat lump and milling, wood, wood waste and agricultural waste.

Accommodation

It is possible to perform block-modular boiler rooms in three versions: separately standing, attached or built into the already existing and suitable building. In this case, the building must be equipped with ventilation systems, heating and lighting. The built-in and attached boiler room have the advantage in the fact that it is not necessary to carry out the heating mains, insulate it, which will avoid heat loss. The rooke version in this case is not suitable, as the modular boiler rooms on solid fuel should have the equipment of fuel feed and slagosol pumping.

Design

Modular boilers on solid fuel can consist of one or more modules, depending on the required power. The block module in typical version is a framework rectangular shape, cooked from steel pipes, height and 3 meter width, 6, 9 long, or 11.5 meters. IN individual project These sizes are subject to change. Walls, floor and roof are performed from 80-150 mm thick sandwich panels. External parties Panels are steel sheets, inside - non-combustible mineral wool Based on basalt fiber. The frame is installed on a specially prepared foundation. Such a design withstands significant snow, wind and temperature loads. Inside the frame mounted and installed all technological and auxiliary equipmentnecessary for heat production or steam on solid fuel:

water heating boilers or KVM or KVM or steam boilers;
fuel supply mechanisms: conveyors with metal structures, bokeners boiler;
sliced \u200b\u200bsystems: ashnikov, conveyors;
assemander, smokers;
pump equipment;
equipment of water treatment system;
automatic, management and security devices;
electrical equipment;
accounting devices;
ventilation systems;
blowing fans;
heat exchangers.

Separately installed smoke trumpet.

In addition, modular boiler rooms on solid fuel must have storage facilities or specially prepared territory for acceptance and storage of fuel, as well as the device for its transportation to the boiler room. These may be skips, grabs and conveyors of different types.

Fuel supplied and slagosol pumping

In modular boiler rooms equipped boilers kvwwThe manual fuel feed and manual ashlacking are provided. Fuel supply to boilers can be carried out using the mechanisms, and the fuel supply to the boiler - manually, through the boot door. Uploading ash and slag from ashniks is also performed manually, and from boiler houses to zero-vehicles - with the help of conveyors. To facilitate the physical labor of the service personnel, the KVR boilers are produced with RPK rotary sparklers, where the unloading of ash and slag is made by tipper or turning the grinding in the ash bunker under the boiler.

Modular boilers on solid fuel with kVM boilers have the type of fuel feed, fuel combustion and gold, depending on the furnace model.

KVM boiler with firebox ZP RPK. Fuel to the boot bunker is moved by a scraper or auger conveyor. From the bunker, fuel is fed to the furnace with rotary grate with the mechanical relocation. The best option It is a pneumomechanical PM-3 thoring, evenly distributing fuel along the gratepinite canvase. The grate is rotated either manually or automatically. Slag and ash are manually removed or conveyor thankropy.

KVM boiler with TLPH furnace. The TLPH firebox is a moving tape grasp of a straight course at a speed of 2-20 m / h. Fuel from the boot bunker Self comes to the grate of the canvas, burns in the process of movement, and the remaining slag and the ash are discharged from the canvas mechanically at the end of the path to the ash bar or directly to the slagosol pumping conveyor.

KVM boiler with TCPM firebox. The TSHPM firebox is a fixed batch grinding cloth. Admission and movement of fuel occurs with the use of the screwing plank. Fuel, dropping from the boot hopper on the canvas, moves the cast-iron plank to the rear of the furnace. Thanks to the design of the plank, during its return movement, the fuel is not shifted, but only raises, opening access to air and enhance the combustion reaction. Slag and ash are faced with a slack with a canvas in the bunker or on the conveyor.

Other modular boiler room systems

To maintain the combustion reaction, the KVR and KVM boilers are equipped with blowing fans.

It is also necessary to pay attention to the quality of fuel, its humidity and sizes. In some cases, the installation of the crusher and metal trailing is required.

The water treatment system has great importance for the operation of the boiler room, that is, cleaning it from all sorts of impurities, abrasive particles, as well as water softening.

The thermal contour of the modular boiler room can be open (connection to heating system Directly), closed (connection via a heat exchanger or a short-circuit collector). It is also possible to work with several types of contours.

In addition to the main aggregates, modular boiler rooms on solid fuel are equipped with heating, lighting and ventilation systems. The kit may include shower, bathroom, staff room.

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