If just a few decades ago it was believed that there was no worthy competitive replacement for European heating equipment, today the domestic manufacturer is gradually gaining its positions. Gas boilers Hephaestus convincingly prove that water heating units manufactured at Russian factories are no worse than their foreign counterparts.
Types of gas boilers from Gefest
The equipment of the Hephaestus company meets all the requirements that apply to heating equipment:- Reliability - trouble-free operation is ensured by Italian gas automatics.
- Simplicity of design- since the number of additional units is minimized, breakdowns are practically excluded.
- Easy to operate and maintain- all the necessary components can be easily purchased at the nearest heating equipment store.
- Wall mounted boilers- save space, in most cases they have two circuits and are dependent on the availability of electricity.
- Floor standing boilers- the most productive heating equipment of the Hephaestus company, the main purpose of which is to heat the coolant. The DHW circuit is either provided in the basic configuration or manufactured additionally, using a built-in or remote indirect heating boiler.
All Hephaestus boilers, regardless of the configuration, are equipped with sensitive Italian automation that continues to work even when the gas pressure drops to 4 mbar.
Wall mounted boilers
The company focuses on the manufacture of powerful floor-standing units, therefore mounted boilers are presented in only a few modifications. Among them are:
Installation of the Hephaestus mounted boiler is carried out using the anchor bolts included in the package. For connection, taps for two heating circuits (central and "warm floors") and hot water supply are provided.
Floor equipment Hephaestus
Floor-standing units (in comparison with mounted boilers), although they do not have most of the functionality, are distinguished by high performance and reliability. The following modifications are popular:
The technical characteristics of the Hephaestus floor-standing boiler imply connection to a classic chimney. Traditionally, an open combustion chamber and an atmospheric burner are used. Household gas floor boiler Hephaestus flow-through type can be used exclusively for the needs of hot water supply.
Operational Features
As already noted, boiler maintenance does not require a large investment of funds and efforts. It is carried out quickly due to the simplicity of the design and free access to the nodes. Service may be required in the following cases:
In non-flue boilers, reverse draft sensors are installed to prevent the spontaneous extinction of the flame; other monitoring equipment is also used.
A drop in gas pressure or a decrease in the volume of the coolant can cause the automatic operation and an emergency stop signal. The solenoid valve of the boiler shuts off the gas supply and thus prevents the accumulation of explosive substances in the room.
The duration of the operation of the boilers largely depends on the installed hydrogroup of the boiler. Softening water and removing coarse particles and calcium deposits protects the heat exchanger from overheating and extends its life.
Why the Hephaestus floor boiler goes out
One of the most common problems of the owners of Hephaestus boilers, judging by the reviews, remains a malfunction, due to which the flame goes out. What could be the cause of the attenuation?- Violation of the technology for installing a coaxial chimney- the consequence of non-compliance with the requirements is an increased volume of flue gases accumulating in the chimney, which leads to spontaneous damping as a result of the automatic operation.
- Wind - boilers with a closed combustion chamber cannot be extinguished even from a strong gust of wind, since a gas reverse draft valve is provided in the design. For heat generators with an open combustion chamber, such a sensor is not provided (can be purchased and installed separately).
- Violation of operating conditions- if the igniter goes out, the reason does not always lie in a malfunction of the automation, probably a problem with power surges or gas supply. For volatile models, it is recommended to install a UPS and a pressure stabilizer.
for work on bituminous and brown coal
with a capacity of 2.5 MW
Hot water boiler Gefest-2.5-95TLPH (KVm-2.5KB) - a hot water boiler with an operating pressure of up to 0.6 MPa is designed to produce hot water with a nominal temperature at the outlet of the boiler of 95 ° C, used in centralized heating systems for needs heating, ventilation and hot water supply of industrial and domestic facilities, as well as for technological purposes of enterprises of various industries.
Specifications
| N / a | Indicator name | Meaning |
|---|---|---|
| 1 | Layout drawing number | 23.8009.032 |
| 2 | Boiler type | Hot water |
| 3 | Design fuel type | 1 - Bituminous coal; 2 - Brown coal |
| 4 | Heating capacity, Gcal / h | 2.15 |
| 5 | Heating capacity, MW | 2.5 |
| 6 | Working (excess) pressure of the coolant at the outlet, MPa (kgf / cm 2) | 0,6(6,0) |
| 7 | Temperature graph of water, ° С | 70-95 (115 - only after agreement with BiKZ) |
| 8 | Estimated efficiency (fuel No. 1),% | 82 |
| 9 | Design fuel consumption (fuel No. 1), kg / h (m 3 / h - for gas and liquid fuel) | 470 |
| 10 | Design fuel consumption (fuel No. 2), kg / h (m 3 / h - for gas and liquid fuel) | 685 |
| 13 | Transportable block dimensions, LxBxH, mm | 4335x2200x2655 |
| 14 | Layout dimensions, LxBxH, mm | 7120х3610х3310 |
| 15 | Boiler weight without furnace (transportable boiler block), kg | 4880 |
| 16 | Boiler weight without furnace (in the scope of factory delivery), kg | 13110(12630) |
| 17 | Delivery type | Assembled |
| 18 | Basic complete set | Boiler block sheathed and insulated Firebox TLPH-1,1 / 3,5 Fan VDN-6,3-1500 |
| 19 | Price complete | 2807.2 |
The device and principle of operation of the boiler Gefest-2.5-95TLPH (KVm-2.5KB)
Boiler Gefest-2.5-95TLPH (KVm-2.5KB) is a structure, the main elements of which are a boiler block and a mechanical furnace. The boilers operate with a balanced draft, which is provided by a VDN blower fan, KZG-280-AK54-02 fan and a smoke exhauster.
The boiler block Gefest-2.5-95TLPH (KVm-2.5KB), assembled on a support frame, is a gas-tight welded structure, consisting of a pipe system with a convective heating surface, and has a frame with thermal insulation and removable decorative sheathing.
The combustion chamber of the boiler Gefest-2.5-95TLPH (KVm-2.5KB) (except for the hearth) is completely shielded by gas-tight panels welded from pipes with a diameter of 51x2.5 mm with a pitch of 80 mm and spacers (fins).
The convective heating surface (CC) consists of packages that can be easily dismantled if necessary. In the lower part of the convection block there is an ash bin with a manhole for cleaning ash deposits and inspecting the pipes of the convective bundle.
The gases are vented through a flue in the upper part of the rear wall of the boiler.
To control the operation of the Gefest-2.5-95TLPH (KVm-2.5KB) boiler, to ensure the design operating modes and safe operating conditions, the boiler is equipped with the necessary safety and shut-off valves, instrumentation and safety devices, which are installed according to the valve layout.
The shut-off valves are used to drain water from the Gefest-2.5-95TLPH (KVm-2.5KB) boiler into the heating network, supply return water to the boiler, drain water from the boiler, for periodic blowdown and removal of sludge. Control and measuring devices (thermometers and manometers) measure pressure and temperature at the inlet and outlet of water from the boiler. Safety devices ensure that the fuel supply is cut off when the temperature and pressure limits of the water in the boiler are reached. Tubes with valves DN15 are used to remove air from the boiler.
The boiler block Gefest-2.5-95TLPH (KVm-2.5KB) is installed on the furnace frame (TLPH). The firebox is mounted before the unit is installed.
Mechanical furnace with a belt grate for forward running (TLPH) consists of a coal box, a frame with a drive, driving and driven shafts moving the belt grate, consisting of three types of grates: extreme, leading and driven. The fuel is supplied by a coal feed conveyor and through the coal box it flows by gravity onto the grate, where it is burned in a layer of 100-200 mm. A certain thickness of the fuel layer on the grate is maintained by means of a layer regulator in the carbon box and is produced manually by means of flywheels through worm gears. Chambers (zones) are arranged under the grate, where the necessary combustion air is supplied. The air supply must be continuous (otherwise the layer is sintered and the grates are burned out) and is regulated by the opening value of the air dampers. Air under the grate is supplied from the VDN fan. Secondary blast air is supplied to the upper front and lower rear parts of the furnace from the KZG-280-AK54-02 fan.
The removal of slag from the grate is due to the movement of the grate, which is set in motion by a drive. Slag removal from the slag channel is carried out by the ash removal conveyor.
The firebox has its own frame, independent of the boiler. The firebox frame consists of two cheeks connected by transverse beams. The frame is mounted on shoes and has free expansion in the longitudinal and transverse (from the drive) directions. For lifting the combustion block with lifting means, there are load brackets, which are cut off after installation.
Boiler block Gefest-2.5-95TLPH (KVm-2.5KB), firebox, fans are delivered in separate cargo items. Automation set, accessories are delivered packed in a box.
At the request of the Customer (under an additional agreement), the boilers are completed with auxiliary equipment for the boiler room (smoke exhauster, pump group, ash collector or cyclone, coal supply conveyor and ash removal line).
Transportation of boilers can be carried out by all types of transport.
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For more than 15 years, the ZAO PKF "GEFEST VPR" plant (Taganrog, Rostov Region), known throughout Russia, has been producing heating boilers of its own design. A distinctive feature of the manufactured products is high quality at an affordable price. The output of the equipment for heating and water supply of individual apartments, cottages and country houses varies from 6 to 50 kW. Hephaestus boilers have a unique heat exchanger design, which, when using reliable European components, saves gas consumption up to 20%. The plant is the first domestic manufacturer of boilers with a closed combustion chamber, has a "Certificate of the Highest Quality Category" (Rostest-Moscow) and is certified according to the international quality standard ISO 9001: 2008.
To date, the plant ZAO PKF "Gefest VPR" produces more than 40 names of gas non-volatile boilers of various modifications:
- Boilers GEFEST with an open combustion chamber (power from 6 to 50 kW)
(used in a closed heating system with an open expansion tank with free or forced circulation of water in the heating circuit, combustion air is taken directly from the room in which the boiler is installed; used for heating and hot water supply of individual residential buildings)
- Boilers GEFEST steel on natural gas, solid fuel, electric heating element (power from 12.5 to 50 kW)
(these boilers are considered universal, they can operate on both natural gas and solid fuel. They are supplied either with a gas burner block or with a device for operating on solid fuel (the thickness of the metal of the inner furnace is 3 mm), it is also possible to install an electric heating element for heating the heating circuit; used for heating and hot water supply of individual residential buildings)
- Boilers GEFEST with a closed combustion chamber (power from 6 to 20 kW)
(in the heated room the oxygen of the air is not "burned out", the air to maintain combustion comes from the street, and the combustion products are removed outside, thanks to the unique water-tube design of the heat exchanger, the entire heating circuit is quickly and efficiently heated during natural circulation, boilers are produced with a coaxial and separate chimney; can be used both in a regular apartment and in an individual house)
- Wall-hung boilers GEFEST TURBO (power 20 kW)
(when assembling boilers, components from the best European manufacturers are used: gas automatics EUROSIT 630 (Italy), solenoid valve BRAHMA (Spain), valve body FUGAS (Italy), combustion chamber MORA TOP (Czech Republic), pump GRUNDFOS (Germany), boilers are adapted to the conditions operation in Russia, the ability to work without an electronic control unit allows you to withstand power drops from 110 to 300 V; can be used both in a regular apartment and in an individual house).
The use of the original water-tube design of the heat exchanger, which ensures the compactness and durability of the structure, with an efficiency of 90-92%, which does not decrease throughout the entire service life of the boiler, as well as reliable EUROSIT automation (Italy) and a slotted low-flame burner made of POLIDORO (Italy) stainless steel favorably distinguishes boilers brand "Gefest" in front of other Russian manufacturers as a promising dynamically developing enterprise.
More than 10 years the company "TeploMarkeT" cooperates with ZAO PKF "GEFEST VPR", our online store presents the most popular boilers of the "Gefest" brand, which have gained popularity among domestic buyers for such qualities as reliability, efficiency, the use of new technologies and the best European components at competitive prices.
Series of boilers Gefest-profi U- these are boilers for universal use, long burning. Designed so that all types of solid fuels are burned as efficiently as possible (which is important also with high humidity). Combustion is carried out by direct pyrolysis, when the air is distributed over the afterburning zones. The unique convective design provides efficiency (90-93%) and, what is important, with a low temperature of flue gases (70-120) ° С. 20% power reserve. The large loading chamber allows the boiler to be loaded with fuel 1-2 times within 24 hours. There is no equipment condensation at low coolant temperatures.
Advantages: Boilers Gefest profi (hefest profi) of the U series
1. Profitability... Universal Boilers "Gefest-proffie»Have an efficient convection system, the system is unique and was developed using software in which engines for BOEING aircraft and F1 cars (efficiency 90-95%) are designed and are the most economical today, to generate 1 Gcal of heat it is necessary to burn 1 cubic meter ... hardwoods with 30% moisture.
2.Ease of use, allows you to rarely load fuel. Loading chambers of increased volume + economical combustion = one or two loading during the day (wood), once every two days when working on coal. The Better the quality of the fuel used, the less frequent the loading process takes place.
3. Simple maintenance... There is no "human factor", there is no need to constantly adjust the combustion process, Modes on the microprocessor control unit are set once and only when the type of fuel is changed can be easily changed.
During operation, the mode uses the algorithm of "smart" combustion, Almost 100% fuel combustion, rare cleaning of the boiler, when working on high-quality fuel can be performed once a season.
Reliable and well thought-out design of the boiler, there are no hard-to-reach areas that impede cleaning.
It is not necessary to use a chimney with a pipe thickness greater than 1.0 mm., Made of heat-resistant, corroded steel. (The flue gas temperature is not more than 90 degrees Celsius.
Correct distribution of the coolant, absence of a dew point - boilers do not cry. Quick exit to the operating mode, the maximum is reached 30 minutes after starting. The water at the exit reaches 90 degrees. Celsius.
4. It can, if necessary, efficiently operate on low quality fuel. The boiler is universal "MULTI" (all types of solid fuels of various qualities).
5. Reliability and safety. Heat is removed from all surfaces, economizer and combustion chamber, which prevents the steel parts from overheating. High design term of application 15-25 years.
Calculation of the boiler according to the maximum load. According to the norms for calculating the strength of vessels and apparatus.
All necessary security systems included (valves and sound alarm.
Efficiency in the event of a power outage (if a natural circulation heating system is provided), the boilers create the required operating pressure and continue to work.
Technical characteristics of Gefest-profi boilers 15-250 kW.
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Boilers "Gefest-profi" 15-250 kW. |
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Technical characteristics of boilers Gefest-profi 350-1000 kW
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Boilers "Gefest-profi" 350-1000 kW. |
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Package Included:
- boiler;
- fan;
- microprocessor control unit;
- safety valve;
- bimetallic thermometer;
- drain tap; flanges (at the request of the customer);
- packing (at the request of the customer).
- operational documentation:
- Installation and operation manual, which contains requirements and recommendations for installation, commissioning and operation of "Gefest-profi" type boilers
- Operational documents for component parts in accordance with the terms of supply of the supplier plants.
ATTENTION! The complete set of boilers of the Gefest-profi P series (for a pellet burner) additionally includes: Stainless steel baffle. Air duct plug.
Basic elements of "Gefest-profi" type boilers:
- 1-combustion chamber (firebox)
- 2-ash pan hatch;
- 3-ash pan;
- 4-filled grates;
- 5-coolant;
- 6-shurovka hatch;
- 7- heat insulating material;
- 8-filling hatch;
- 9- microprocessor control unit;
- 10-convective part;
- 11-fan;
- 12-distributor of secondary air;
- 13-drain valve;
- 14-branch pipe of the return pipeline;
- 15-lower hatches for cleaning chimneys;
- 16-smoke channel;
- 17-handle for manual thrust control;
- 18-upper hatch for cleaning chimneys;
- 19 - branch pipe of the supply pipeline;
- 20 - analog thermometer.
Boilers type "Gefest-profi" equipped with an inflatable fan and a microprocessor control unit, which allow you to control the boiler power and the speed of the coolant. And they are representatives of a new generation of boilers with a patented convection system, with smoke channels located at different angles of attack.
The design of the boiler allows the use of any type of fuel: Staub, coal, peat, wood. The use of a distributed air supply system to the combustion zone allows you to effectively control the combustion process of various types of fuel, and also allows you to control the fuel combustion process under various operating modes of the boiler.
The boiler is equipped with a heat exchanger of certified steel with a thickness of 4-6 mm, a welded structure, closed from the inside by a water jacket, reinforced with pins and surrounded by steel sheets. The boiler heat exchanger is a multi-stage design of the flue ducts.
The boiler furnace is a charging chamber equipped with steel water-filled grates. There is an ash pan under the heat exchanger. The location of the filling, skimming doors, and the ash pan door allows quick access to the firebox for cleaning or lighting.
Wide, angled loading doors facilitate fuel loading. Additionally, there are cleaning doors that allow cleaning the boiler flue channels.
The air necessary for the correct combustion process is supplied by a fan thanks to a system of inflatable ducts located directly in the area of the loaded fuel.
The microprocessor controller constantly measures the temperature of the water in the boiler and accordingly sets the fan blowing force, regulating the amount of air required for the combustion process.
In boilers "Gefest-profi" regulator, controls the boiler temperature based on the PID algorithm. (PID = BO stands for "proportional = proportional", "integral = integral", "derivative = differential." In a typical PID controller, these elements operate with a combination of both input control parameters and feedback signals from a controlled device (a control object, hereinafter simply a device.) The outputs of these elements are added together and form a control signal for the device.)
The microprocessor ensures the constant operation of the boiler at the specified temperature of 85 ° C. The maximum temperature of the water in the boiler is 90 ° C. When this temperature is exceeded, the regulator turns off the air supply.
Hot gases pass through a steel heat exchanger where, after giving off heat, they are cooled. The cooled gases leave the boiler and are connected to the flue pipe through the chimney. A draft control valve is installed in the chimney, designed to reduce the chimney draft if necessary. The space between the boiler heat exchanger and its body is filled with non-combustible heat-insulating material - mineral wool 40-45mm thick. The temperature of the water in the boiler can be monitored using a thermometer installed on the boiler.
Gefest boiler connection diagram
- 1. Boiler safety group,
- 3.circulation pump,
- 2.expansion tank,
- 4. taps.
Uncomplicated scheme, but significantly improves the operation of the boiler. It provides for a mixing circuit and taps, with the help of which the amount of coolant entering the flue gas circuit is regulated. This scheme excludes the possibility of condensation formation on the boiler walls. The advantage with such a connection scheme is that the temperature of the coolant in the heating devices can be significantly lower than the temperature of the coolant in the boiler.
Boiler service Gefest
The heating system is repaired and maintained by the home owner or service company. The boiler needs regular cleaning and storage. This is essential for proper operation and efficient combustion of fuel. It is allowed to start cleaning the boiler only after it has completely stopped (see section 6.4. Stopping the boiler). 8.1. Cleaning of the surface of the furnace walls and secondary air nozzles is carried out through the hatch. 8.2. The surface of the grate pipes is cleaned through the slag removal hatch (shurovka hatch). 8.3. The walls of the heat exchanger and the chimney are cleaned through the upper channel cleaning hatches. 8.4. Removal of slag, after cleaning the walls of the heat exchanger, is carried out through the lower side hatches. 25 8.5. It is also necessary to periodically clean the fan and measuring and control devices in order to prevent the accumulation of dust on these elements of the boiler. After the end of the heating season, it is not necessary to drain the water from the boiler, however, the furnace and flue ducts should be thoroughly cleaned. In the future, all work related to checking, cleaning and repairing the gas duct should be carried out only by the production and operating organization. To extend the life of the boiler, it is recommended to keep the boiler open during downtime to allow air to enter the boiler, and it is recommended to dry it during storage.
