CN218154165U - Membrane wall steam boiler - Google Patents

Abstract

The utility model relates to a boiler equipment technical field just discloses a diaphragm type wall steam boiler, including gas collection case and closing plate one, the bottom of gas collection case is connected with preceding header through communicating pipe one, preceding header's bottom fixedly connected with furnace goes up the header, furnace goes up the left side of header and is provided with the combustor interface. The utility model has good sealing performance, the heat of the boiler passing through the water wall pipe reaches the furnace wall is small, and the heat storage of the furnace wall is less; the heat is absorbed by the band steel, the band steel is again with heat radiation feedwater wall pipe or boiler, reduce heat energy loss, the increasing the heat efficiency, the diaphragm type wall structure, it is few to lead to the brickwork heat accumulation, so, when the installation, can avoid setting up thick brickwork, save or can be with setting up without refractory material less, reduce the installation cost, the installation complexity has been reduced, moreover, the steam generator is simple in structure, high durability and convenient use, can effectively reduce water tube boiler's installation cost and complexity, avoid boiler heat energy loss, the increasing water tube boiler thermal efficiency.

Description

Membrane wall steam boiler

Technical Field

The utility model relates to a boiler equipment technical field specifically is a diaphragm type wall steam boiler.

Background

The structure of the water tube boiler comprises a boiler body and auxiliary equipment. The boiler body part mainly comprises a lower water chamber, a hearth membrane type water-cooled wall, a convection tube bundle of a convection spiral fin, an upper air space group, a burner, a framework, a furnace wall and the like. At present, when a water tube boiler is installed, a thick furnace wall needs to be erected beside the boiler, heavy refractory materials need to be erected on the furnace wall, and aluminum silicate plates are generally used as the refractory materials. Thus, the installation cost and complexity of the prior art water tube boiler are large. In addition, gaps exist among the water wall tubes in the prior art, the sealing performance is poor, the heat radiation of the boiler can directly penetrate through the gaps among the water wall tubes, part of the heat radiation is absorbed by the boiler wall and a refractory material, the heat storage capacity of the boiler wall is large, heat loss is caused, and the heat efficiency of the water tube boiler is reduced.

In view of the technical defects, a D-level membrane wall boiler which has a simple structure and is convenient to use, can effectively reduce the installation cost and complexity of the boiler, avoids the heat energy loss of the boiler and improves the heat efficiency is urgently needed.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

An object of the utility model is to provide a diaphragm wall steam boiler to solve the problem that proposes among the above-mentioned background art.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a diaphragm type wall steam boiler, includes gas collection case and closing plate one, the bottom of gas collection case is connected with preceding collection case through communicating pipe, the collection case on the bottom fixedly connected with furnace of preceding collection case, the left side of collection case is provided with the combustor interface on the furnace, the top fixed mounting of collection case has the exhanst gas outlet on the furnace, the left side of closing plate one is provided with preceding collection case down, the bottom of closing plate one is provided with closing plate two, the bottom fixedly connected with right wall membrane type wall of closing plate two, the surface of closing plate one is from last to having left wall membrane type wall, convection bank, the collection case under the convection current membrane type case, middle wall, the furnace collection case down in proper order, the right side of closing plate one is provided with back collection case down, the bottom fixed mounting of back collection case down has the flange lid, and right wall membrane type wall, middle membrane type wall, left wall membrane type wall and band steel welding together, if dry side wall pipe has constituted the diaphragm type wall structure of the utility model. Thus, the utility model has good sealing performance, the heat of the boiler passing through the water wall tube and reaching the furnace wall is small, and the heat storage of the furnace wall is less; the heat is absorbed by the flat steel, the flat steel radiates the heat to the water cooling wall pipe or the boiler, the heat loss is reduced, the heat efficiency is improved, the heat storage of the furnace wall is less due to the membrane wall structure, and therefore when the boiler is installed, the thick furnace wall can be prevented from being built, and meanwhile, the fire-resistant material is saved or can be omitted. The water pipe boiler has the advantages of reducing cost, installation cost and installation complexity, being simple in structure and convenient to use, effectively reducing the installation cost and complexity of the water pipe boiler, avoiding heat energy loss of the boiler and improving the heat efficiency of the water pipe boiler.

Preferably, the outer side of the gas collection header is connected with a rear upper header through a communicating pipe II, and the bottom of the rear upper header is connected with a convection upper header through a rear wall pipe, so that the water carrying rate of steam is reduced.

Preferably, the outer side of the rear upper header is connected with a hearth upper header through a third communicating pipe, a fourth communicating pipe and a fifth communicating pipe.

Preferably, the outer side of the rear upper header is connected with a hearth upper header through a sixth communicating pipe and a seventh communicating pipe.

Preferably, the convection bank is a spiral fin tube, the flue gas passes through the convection bank to heat the cold water in the economizer, and the water heated by the economizer enters the boiler body for use.

Compared with the prior art, the beneficial effects of the utility model are that:

this diaphragm type wall steam boiler, right side wall diaphragm type wall, middle diaphragm type wall, left side wall diaphragm type wall and band steel welding are in the same place, and a plurality of side wall pipes have constituted with the band steel the utility model discloses a diaphragm type wall structure. Thus, the utility model has good sealing performance, the heat of the boiler passing through the water wall tube and reaching the furnace wall is small, and the heat storage of the furnace wall is less; the heat is absorbed by the flat steel, the flat steel radiates the heat to the water cooling wall pipe or the boiler, the heat loss is reduced, the heat efficiency is improved, the heat storage of the furnace wall is less due to the membrane wall structure, and therefore when the boiler is installed, the thick furnace wall can be prevented from being built, and meanwhile, the fire-resistant material is saved or can be omitted. The water pipe boiler has the advantages of reducing cost, installation cost and installation complexity, being simple in structure and convenient to use, effectively reducing the installation cost and complexity of the water pipe boiler, avoiding boiler heat energy loss and improving the heat efficiency of the water pipe boiler.

Drawings

Fig. 1 is a schematic top view of the present invention;

FIG. 2 is a schematic view of the structure of the present invention;

FIG. 3 is a schematic side view of the present invention;

fig. 4 isbase:Sub>A schematic view of the cross-sectional structurebase:Sub>A-base:Sub>A of fig. 2 according to the present invention.

In the figure: 1. a gas collection header; 2. a first communicating pipe; 3. a front upper header; 4. a header is arranged on the hearth; 5. a burner interface; 6. a flue gas outlet; 7. a first sealing plate; 8. a front lower header; 9. a second sealing plate; 10. a right wall membrane wall; 11. a middle membrane wall; 12. a hearth lower header; 13. a flange cover; 14. then collecting the box; 15. the convection current flows down the header; 16. a left wall membrane wall; 17. a convection bank; 18. a back wall pipe; 19. convection upper header; 20. then the upper header is arranged; 21. a second communicating pipe; 22. a third communicating pipe; 23. a fourth communicating pipe; 24. A fifth communicating pipe; 25. a sixth communicating pipe; 26. and a communication pipe seven.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a membrane wall steam boiler comprises a gas collection header 1, a first communicating pipe 2, a front upper header 3, a hearth upper header 4, a burner interface 5, a smoke outlet 6, a first sealing plate 7, a front lower header 8, a second sealing plate 9, a right wall membrane wall 10, a middle membrane wall 11, a hearth lower header 12, a flange cover 13, a rear lower header 14, a convection lower header 15, a left wall membrane wall 16, a convection tube bundle 17, a rear wall tube 18, a convection upper header 19, a rear upper header 20, a second communicating pipe 21, a third communicating pipe 22, a fourth communicating pipe 23, a fifth communicating pipe 24, a sixth communicating pipe 25 and a seventh communicating pipe 26, wherein the bottom of the gas collection header 1 is connected with the front upper header 3 through the first communicating pipe 2, the outer side of the gas collection header 1 is connected with the rear upper header 20 through the second communicating pipe 21, the outer side of the rear upper header 20 is connected with the fifth communicating pipe 24, the sixth communicating pipe 25, the fourth communicating pipe 23, the fifth communicating pipe 24 is connected with the hearth upper header 4, and the outer side of the rear upper header 20 is connected with the hearth upper header 4 through the sixth communicating pipe 25 and the seventh communicating pipe 26;

the bottom of the rear upper header 20 is connected with a convection upper header 19 through a rear wall pipe 18 to reduce the water carrying rate of steam, the bottom of the front upper header 3 is fixedly connected with a hearth upper header 4, the left side of the hearth upper header 4 is provided with a burner interface 5, the top of the hearth upper header 4 is fixedly provided with a flue gas outlet 6, the left side of a sealing plate I7 is provided with a front lower header 8, the bottom of the sealing plate I7 is provided with a sealing plate II 9, and the bottom of the sealing plate II 9 is fixedly connected with a right wall film type wall 10;

the utility model discloses a membrane type wall structure, like this, the utility model discloses a good leakproofness, the heat that boiler heat passes the water wall pipe and reaches the boiler wall is little, the boiler wall heat accumulation is less, the surface of closing plate 7 is from last to fixedly mounting in proper order down, left wall membrane type wall 16, convection bank 17, convection lower header 15, middle membrane type wall 11, furnace lower header 12, convection bank 17 specifically is the spiral fin pipe, flue gas passes from convection bank 17, heat the cold water in the energy-saving appliance, the water after the energy-saving appliance heating reenters boiler body and uses, the right side of closing plate 7 is provided with back lower header 14, the bottom fixed mounting of back lower header 14 has flange lid 13, right wall membrane type wall 10, middle membrane type wall 11, left wall membrane type wall 16 weld with the band steel together, a plurality of side wall pipes and band steel constitute the utility model discloses a membrane type wall structure, so, the utility model discloses a good leakproofness, the heat of boiler passes the water wall pipe heat accumulation is little, the boiler wall heat accumulation is less; the heat is absorbed by the band steel, the band steel is again with heat radiation feedwater wall pipe or boiler, reduce heat energy loss, the high heat efficiency, the diaphragm type wall structure, it is less to lead to the brickwork heat accumulation, thus, when the installation, can avoid setting up thick brickwork, and simultaneously, save or can be with setting up without refractory material less, therefore, the carrier wave energy absorption device reduces the installation cost, the installation complexity is reduced, moreover, the steam generator is simple in structure, high durability and convenient use, can effectively reduce the installation cost and the complexity of water tube boiler, avoid boiler heat energy loss, the high water tube boiler heat efficiency.

The working principle is as follows: firstly, the boiler body part mainly comprises a lower water chamber, a hearth membrane type water-cooled wall, a convection tube bundle of convection spiral fins and an upper air space, wherein the lower water chamber is provided with a front lower header 8, a rear lower header 14 and a hearth lower header 12, the rear lower header 14 is provided with a DN25 water inlet and a DN25 blow-off tube seat, the front lower header 8 is provided with a DN25 water level gauge water space tube seat, the hearth upper header 4, the hearth lower header 12, 22 phi 32X 4 right wall membrane walls 10 and 22 phi 32X 4 middle membrane walls 11 form the hearth membrane type water-cooled wall, the hearth membrane type water-cooled wall consists of 7 phi 32X 4 tubes, 20X 3 flat steel and 38 phi 32X 4 spiral fin tubes to form the well-sealed convection tube bundle 17, the heat transfer effect is enhanced, the heat efficiency is improved, the upper header 3, the convection upper header 19, the hearth upper header 4, the rear upper header 20, the communicating tubes and the upper air collection box 1 are arranged in the upper air space, the water rate of a steam zone is greatly reduced, a normal pressure economizer part uses 96 phi 32 multiplied by 3 spiral fin tubes as two return strokes, smoke passes through the spiral fin tubes, cold water in the economizer is heated, the water heated by the economizer enters a boiler body for use, the boiler is of a three-return stroke structure, the first return stroke is a hearth and consists of 44 phi 32 multiplied by 4 tubes, 5 phi 32 multiplied by 4 rear wall tubes 18 and front and rear heat-insulating layers, a combustion chamber outlet is positioned at a rear gap of a convection bank 17 and serves as a smoke outlet, the second return stroke is a channel surrounded by 7 phi 32 multiplied by 4 fin tubes and 38 phi 32 multiplied by 4 spiral fin tubes, the third return stroke is a normal pressure economizer channel, the smoke is discharged from an upper chimney after a normal pressure economizer spiral fin tube, the whole smoke channel is arranged inside the boiler body, the possibility of no leakage is good, the safety is high, the inner side of the convection bank is a radiation heating surface, the outside is a convection heating surface, the water in the pipe forms strong convection, the heat transfer effect is good, the volume design of a smoke chamber is large, the combustion performance and the heat transfer performance are good, the gas collection box 1 of the boiler body is provided with an air exhaust collection box as a steam-water separator to ensure the quality of steam, and the gas collection box 1 is provided with a pressure gauge pipe seat, a main steam valve pipe seat, a safety valve pipe seat, an exhaust pipe seat and the like.

It should be finally noted that the above only serves to illustrate the technical solution of the present invention, and not to limit the scope of the present invention, and that simple modifications or equivalent replacements performed by those skilled in the art to the technical solution of the present invention do not depart from the spirit and scope of the technical solution of the present invention.

Claims (5)

1. A membrane wall steam boiler, including gas collection header (1) and closing plate (7), its characterized in that: the gas collection box comprises a gas collection box (1), and is characterized in that the bottom of the gas collection box (1) is connected with a front upper collection box (3) through a communicating pipe I (2), the bottom of the front upper collection box (3) is fixedly connected with a hearth upper collection box (4), the left side of the hearth upper collection box (4) is provided with a burner interface (5), the top of the hearth upper collection box (4) is fixedly provided with a flue gas outlet (6), the left side of a sealing plate I (7) is provided with a front lower collection box (8), the bottom of the sealing plate I (7) is provided with a sealing plate II (9), the bottom of the sealing plate II (9) is fixedly connected with a right wall film type wall (10), the surface of the sealing plate I (7) is fixedly provided with a left wall film type wall (16), a convection bank (17), a convection lower collection box (15), a middle film type wall (11) and a hearth lower collection box (12) from top to bottom, the right side of the sealing plate I (7) is provided with a rear lower collection box (14), and the bottom of the rear lower collection box (14) is fixedly provided with a flange cover (13).

2. A membrane wall steam boiler according to claim 1, wherein: the outer side of the gas collection header (1) is connected with a rear upper header (20) through a second communicating pipe (21), and the bottom of the rear upper header (20) is connected with a convection upper header (19) through a rear wall pipe (18).

3. A membrane wall steam boiler according to claim 2, wherein: the outer side of the rear upper header (20) is connected with a hearth upper header (4) through a third communicating pipe (22), a fourth communicating pipe (23) and a fifth communicating pipe (24).

4. A membrane wall steam boiler according to claim 3, wherein: the outer side of the rear upper header (20) is connected with a hearth upper header (4) through a communication pipe six (25) and a communication pipe seven (26).

5. A membrane wall steam boiler according to claim 1, wherein: the convection bank (17) is embodied as a helical fin tube.

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