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How specialized production and supply company boiler and boiler-auxiliary equipment, our company offers reliable steam boilerDE-25-24-250 GM ( boiler delivered to the customer in bulk, fully equipped ) .

We also propose to carry out comprehensive work in the following areas:

. design of a boiler room, both stationary and MKU,

Design for the reconstruction of a boiler cell (replacement of a boiler with a larger or less productive one)),

Supply of boiler(s) and auxiliary equipment,

Checkout: to purchase a steam boiler DE-25-24-250 GM, from You will need to send to our addressapplication where Necessarilyindicate :

. boiler layout ( specialist consultation, recommendations ) ;

Company details;

Contact person, position;

Phones/fax for feedback;

. email enterprises ( e-mail:).

Delivery to calculate the cost of delivery - indicate the destination(auto delivery, Railway delivery ).

TO consultation specialist: 8- 960- 942- 53- 03

T phone /Fax : 8 ( 3854) 44- 86- 49

e-mail :biek22@ mail.ru

Price list DE

. TO boiler delivery kit DE-25-24-250 GM (ross) :

1. Upper drum, lower drum with internal drum devices (holes for the boiler pipe are milled and knurled);

2. Built-in boiler superheater at 250°C

4. Platform stairs, frame, frame, lining materials;

6. Spare parts box complete set (shut-off valves, instrumentation devices);

7. Package of technical documentation: boiler passport DE-25-24-250 GM with annex - ultrasonic inspection reports, certificates and permission to use "Rostechnadzor".

. Execution of work :

1. Dismantling works;

2. Installation work;

3. Replacement of boiler pipe systems;

4. Masonry work (light/heavy);

5. Installation and adjustment of instrumentation and automation;

6. Start-up adjustment;

. Selection of equipment I :

(go to page)

. Boiler automation DE, DKVR, KE . Drum kit to boilers DE, DKVr, KE .

. Pipe system DE, DKVR, KE . BurnerGM, GM, GM. - We ishaupt- .

. Deaerators YES . Filter FIP . Economizers EB, BVES . Valves 17s28nzh .

. Draft machines VDN, DN . Level indicator Dy10 Py25.

. General form :

. Description of the boiler DE-25-24-250 GM:

DE-25-24-250 GM boiler with built-in steam superheater at 250 °C, oil-gas vertical water tube with natural circulation type E (DE) with a capacity of 25 tons of superheated steam (250 °C) per hour, used for technological needs industrial enterprises, in heating, ventilation and hot water supply systems. The combustion chamber of the DE boiler is formed in the form of the Latin "D" screen pipes, located to the right of the convective beam, equipped vertical pipes, flared in the upper and lower drums. Main components boiler DE-25-24-250GM with a built-in superheater at 250 °C are upper and lower drums, pipe system The DE boiler consists of a convective beam, a rear front and side screen, forming the combustion chamber of the DE-25-24-250 GM boiler.

Steam boiler DE-25 24 250 GM with a diameter of the upper and lower drums - 1000 mm, the distance between the drums, respectively - 2750 mm (the maximum possible according to the conditions of transportation of the unit by railway). To access the inside of the drums, there are manholes with shutters in the front and rear bottoms of each of them (manhole cover). Manufactured drums for the boiler DE-25-24-250 GM with a working pressure of 1.4 MPa (abs) made of steel 16GS or 09G2S and have a wall thickness of 22 mm, respectively.

Steam boiler DE-25 24 250 GM with a built-in superheater at 250 °C with a capacity of 16 t/h of superheated steam, a two-stage evaporation scheme is used. The second stage of evaporation includes the rear part of the furnace screens and part of the convective beam, located in a zone with more high temperature gases The second stage evaporation circuits have an unheated descent system.

On boilers with a capacity of DE-25-24-250 GM, the superheater at 250 °C is vertical, drained from two rows of pipes.

The boiler DE-25-24-250 GM with a built-in superheater at 250 °C is supplied both as a block and in bulk; the delivery package includes; upper and lower drums with intra-drum devices, a pipe system of screens and a convection beam (with a 225 °C superheater), support frame, insulation and lining.

The boiler DE-25 24 250 GM with a built-in superheater at 250 °C is equipped with a heating surface cleaning system using GUV (shock wave generator).

The fixed supports of the boilers are the front supports of the lower drum. The middle and rear supports of the lower drum are movable and have oval holes for bolts that are attached to the support frame during transportation.

Steam boiler DE-25-24-250 GM with a built-in superheater at 250 °C is equipped with two spring safety valves 17s28nzh, with a steam reheater, the control valve is the valve of the superheater outlet manifold.

Nominal steam output and steam parameters (corresponding to GOST 3619-82) are provided at a feed water temperature of 100°C when burning fuels: natural gas With specific heat combustion 29300-36000 kJ/kg (7000-8600 kcal/m3) and fuel oil grades M40 and M100 according to GOST 10588-75.

Boiler regulation range within 20-100% of the nominal steam output. Short-term work with a load is allowed 110 % . Maintaining the superheat temperature in boilers with steam superheaters is ensured in the load range of 70-100%.

The boiler DE-25-24-250 GM can work in the pressure range 0.7-1.4 MPa.

In boiler houses intended for the production of saturated steam without imposing strict requirements on its quality, the steam production of type E (DE) boilers at a pressure reduced to 0.7 MPa can be taken the same as at a pressure of 1.4 MPa.

Boiler DE-25 24 250 GM with built-in superheater at 250 °C throughput capacity safety valves 17s28nzh corresponds to the nominal boiler performance at a pressure not lower than 0.8 MPa (abs).

Feed water quality standards and the pair must comply with the requirements regulated by the rules of the “Federal Service for Environmental, Technological and Nuclear Supervision” of Russia.

The salt content of boiler water in the first evaporation stage of boilers without a superheater should be no more than 3000 mg/kg, for boilers with a superheater - no more than 2000 mg/kg. The salt content of boiler water of the second stage of evaporation should be no more than 4500 mg/kg.

Average boiler service life between major overhauls depending on the number of hours of use installed capacity 2500 h/y - 3 years, average service life before write-off is at least 20 years.

Steam boiler DE-25 24 250 GM, can be used as a hot water boiler (according to the technical documentation of the enterprise).

. Technical characteristics of DE-25-24-250 GM:

Boiler type	Steam t/h (MW)	Working pressure MPa (kgf/cm 2 /)	Temp, steam °С	Efficiency, %		Fuel consumption		Dimensions (LxBxH), mm	Weight, kg
				gas	fuel oil	gas (m 3 / h)	fuel oil (kg/h)
DE-4-14 GM	4,0 (2,65)	1,4 (14)	194	92,1	89,9	287	272	4195x3980x5050	12506
DE-6.5-14 GM	6,5 (4,31)					466	443	4080x3980x5050	13908
DE-6.5-14-225 GM				92,4	90,3	482	455	4800x3980x5050	14130
DE-10-14 GM	10,0 (6,63)			93,2	91,3	710	671	6530x3980x5050	17681
DE-10-14-225 GM			225	91,9	90,8	742	695	6530x4080x5050	18581
DE-10-24 GM		2,4 (24)	221	93,2	91,3	710	671	6573x4080x5050	20254
DE-10-24-250 GM			250	91,9	90,8	742	695		21286
DE-16-14 GM	16,0 (10,61)	1,4 (14)	194	93	90,1	1141	1088	8655x5205x6050	20743
DE-16-14-225 GM			225		89,9	1202	1124	8655x5205x6050	22110
DE-16-24 GM		2,4 (24)	221		90,08	1141	1088	8655x5210x6050	23658
DE-16-24-250 GM			250	91,2	89,9	1202	1124	8655x5205x6050	25250
DE-16-24-380 GM			380	91,5	88,7	1390	1296	8565x5242x6260	25690
DE-25-14 GM	25,0 (16,58)	1,4 (14)	194	93,9	91,7	1762	1670	10195x5315x6095	27843
DE-25-14-225 GM			225	93	90,6	1868	1740	10195x5315x6095	27400
DE-25-15-270 GM		1,4 (14)	270	93,4	90,95	1916	1803	10195x5480x6120	29199
DE-25-15-285 GM			285	93,1	90,9	2023	1879	10195x5315x6100	32026
DE-25-24 GM		2,4 (24)	221	93,9	91,7	1762	1670	10195x5210x6095	30836
DE-25-24 GM-OE				94,5	90,93	1750	1684	12363x5340x5967	36290
DE-25-24-250 GM			250	91,3	89,9	2126	2008	10195x5315x6095	31430
DE-25-24-380 GM			380					10195x5570x6095	32756

The boiler has DE-25-24-380GM-O (E-25-2.4-380GM) inner diameter the upper and lower drums are 1000 mm.

The pipes of the partition and the right side screen of the boiler DE-25-24-380GM-O (E-25-2.4-380GM), which also forms the under and ceiling of the combustion chamber, are inserted directly into the upper and lower drums. The ends of the rear screen pipes are welded to the upper and lower manifolds. The front screen pipes are flared in the upper and lower drums.

In the water space of the upper drum of the boiler there is a feed pipe and a pipe for introducing phosphates, and in the steam volume there is a separation device. The lower drum contains a device for steam heating of water in the drum during kindling and pipes for draining water, perforated pipes for periodic purging.

The combustion chamber of the DE-25-24-380GM-O (E-25-2.4-380GM) boiler is separated from the convective beam by a gas-tight partition, in the rear part of which there is a window for the entry of gases into the beam. The partition is made of tightly placed and welded pipes. When entering the drums, the pipes are separated into two rows. The vertical part of the partition is sealed with metal spacers welded between the pipes. The convective bundle of the boiler DE-25-24-380GM-O (E-25-2.4-380GM) is formed by corridor-positioned vertical pipes, flared in the upper and lower drums.

The furnace rear screen is available in two versions:

The firebox rear screen pipes are welded to the upper and lower screen collectors, which in turn are welded to the upper and lower drums. The ends of the rear screen collectors on the side opposite the drums are connected by an unheated recirculation pipe. To protect recirculation pipes and collectors from thermal radiation, two pipes are installed at the end of the combustion chamber, connected to the drums by rolling.

C-shaped pipes forming the rear screen of the firebox and are connected to the drums by rolling.

The DE-25-24-380GM-O (E-25-2.4-380GM) boiler has no partitions in the convective beam, and the required level of gas velocities is also maintained by changing the width of the beam. Flue gases pass across the entire cross-section of the convective beam and exit through the front wall into the gas box, which is located above the combustion chamber. Next, through the gas box, the flue gases pass to the economizer located at the rear of the DE-25-24-380GM-O (E-25-2.4-380GM) boiler.

The boiler uses two-stage evaporation. The second stage of evaporation of the DE-25-24-380GM-O (E-25-2.4-380GM) boiler includes the rear part of the furnace screens and the convective beam, located in an area with a higher gas temperature. The second stage evaporation circuits have an unheated downdraft system.

The contours of the side screens and the convective beam of the DE-25-24-380GM-O (E-25-2.4-380GM) boiler, as well as the front screen of the boiler, are closed directly to the drums. The contours of the rear screen of the DE-25-24-380GM-O (E-25-2.4-380GM) boiler are connected to the drum through intermediate collectors: the lower one is distributing (horizontal) and the upper one is collecting (oblique). The ends of the intermediate collectors on the side opposite to the drums are connected by an unheated recirculation pipe.

As primary separation devices, fender shields and guide visors installed in the upper drum are used, ensuring the supply of the steam-water mixture to the water level. A perforated sheet and a louvered separator are used as secondary separation devices.

In the boiler DE-25-24-380GM-O (E-25-2.4-380GM) the superheaters are vertical, drained from two rows of pipes with a diameter of 51x2.5.

To burn fuel oil and natural gas, a gas and oil burner GMP is installed on the DE-25-24-380GM-O (E-25-2.4-380GM) boiler.

The main components of the burner are: the gas part, the blade apparatus for swirling air, the nozzle unit with the main and backup steam-mechanical nozzles.

The boiler DE-25-24-380GM-O (E-25-2.4-380GM) is equipped with required quantity fittings and instrumentation.

Converting the steam boiler DE-25-24-380GM-O (E-25-2.4-380GM) to hot water mode allows, in addition to increasing the productivity of boiler plants and reducing costs for own needs associated with the operation of feed pumps, heating water heat exchangers and equipment continuous blowing, as well as reducing costs for water treatment, significantly reducing fuel consumption.

Average performance Boiler efficiency, used as a water heating system, increases by 2.0-2.5%.

The boiler DE-25-24-380GM-O (E-25-2.4-380GM) is supplied to the customer in one transportable unit (the unit is sheathed and insulated with an installed burner; a version with a built-in economizer is possible) complete with instrumentation, fittings and fittings in within the boiler, stairs and platforms, steam superheater (under additional agreement).

DE series boilersdesigned by Biysk boilermakers specifically for working on liquid fuel. The geometry of these boilers is considered the simplest - a D-shaped firebox with a vertical convective beam - and that’s all! The exception is boilers with a capacity of 16 tons of steam/hour and above that have screens, downcomers and bypass pipes. DE type boilers are the progenitors of DSE boilers.

DE boilers are available in the following sizes:

DE 4-14 GM-O
DE 6.5-14 GM-O
DE 10-14 GM-O
DE 16-14 GM-O
DE 25-14 GM-O

May have the letter GM - fuel type - gas-oil
Or a GM-O gas-oil boiler with casing and insulation. Steam boilers DE - these are liquid fuel boilers with side-mounted drums and, as mentioned above, a D-shaped firebox that is completely shielded. Steam capacity from 4 to 25 tons of steam/hour, pressure 1.4 MPa and superheated steam temperature 194 `C. It can be equipped with a steam superheater. The characteristics of the boiler can reach pressures of up to 2.4 MPa and temperatures of up to 380 `C. Boilers of this series have the ability to switch to hot water mode.
The combustion chamber of DE boilers is located on the side of the convective beam, equipped with vertical pipes flared in the upper and lower drums. The main components of the boilers are the upper and lower drums, the convection beam, and the front and side screens that form the combustion chamber.
The boilers of this series have a diameter of the upper and lower drums of 1000 mm. The distance between the drums is respectively 2750 mm (the maximum possible under the conditions of transporting the block by rail). For access to the inside of the drums, there are manhole gates (manholes) in the front and rear bottoms of each of them. Drums for boilers with a working pressure of 1.4 and 2.4 MPa are made from steel 16GS or 09G2S and have a wall thickness of 14 and 24 mm, respectively.
Boilers with a capacity of 4; 6.5 and 10 t/h are made with a single-stage evaporation scheme. In boilers with a capacity of 16 and 25 t/h, two-stage evaporation is used. The second evaporation stage includes the rear part of the furnace screens and part of the convective beam, located in the zone with a higher gas temperature. The second stage evaporation circuits have an unheated downdraft system.
Boiler superheater with capacity 4; 6.5 and 10 t/h is made of a coil of pipes. On boilers with a capacity of 16 and 25 t/h, the superheater is vertical, drained from two rows of pipes.
Decoding the standard size of the boiler. DE 10-14-250 GM-O:

10-power-10 tons of steam/hour.
14-pressure-1.4 MPa.
250 - superheated steam temperature - 250 `C
GM-fuel type: GM- liquid fuel(gas, fuel oil, etc.), O-boiler with casing and insulation.