CN2182961Y

CN2182961Y - Horizontal normal pressure multi-purpose boiler

Info

Publication number: CN2182961Y
Application number: CN 94201489
Authority: CN
Inventors: 姜希和
Original assignee: ERSHIERYE BOILER AUXILIARY MACHINERY FACTORY TANGSHAN CITY
Current assignee: ERSHIERYE BOILER AUXILIARY MACHINERY FACTORY TANGSHAN CITY
Priority date: 1994-01-17
Filing date: 1994-01-17
Publication date: 1994-11-16
Anticipated expiration: 2004-01-17

Abstract

The utility model relates to a horizontal type normal pressure multipurpose boiler which belongs to a boiler for heating water. The utility model is characterized in that the periphery of a combustion chamber and flues and the casing of a boiler body form water-cooling walls; the water-cooled walls are communicated with each other by a hearth superheating pipe arranged on the lower part of a lower flue; the upper part of the combustion chamber is provided with a closed smoke pipe superheat region; two return travel flues formed by two rows of smoke pipes are arranged in the smoke pipe superheat region; the two return travel flues are divided into a front flue and an upper flue; the smoke pipe superheat region is connected with the water-cooling walls by sandwich layer space between the upper flue and the lower flue. Compared with the existing normal pressure water heating boiler, the utility model has the advantages of reasonable and compact structure, small ground occupation, full use of fume residual heat, easy cleanness of flue dust deposition, smoke expelling pollution removing, etc. The utility model is a horizontal type normal pressure multipurpose boiler which is suitable for supplying heat for an area which is smaller than 2000 m<2>.

Description

Horizontal normal pressure multi-purpose boiler

The utility model relates to a kind of horizontal normal pressure multipurpose furnace, belongs to the heating hot water boiler.

At present, area of heat-supply service is at 2000m ²Following normal-pressure hot-water boiler mostly is vertical structure, vertical structure only limits to be provided with water jacket outside burner hearth, horizontal type structure is except that being provided with burner hearth outside the water jacket, pipe laying also is set to absorb flue residue heat in flue,, and heat-absorbing water pipe is set in flue though some horizontal normal pressure heating hot water boiler adopts annular flue, so that combustion gas makes full use of, but flue dust is difficult to remove, and simultaneously, the heating boiler of most horizontal type structures adopts the mechanical type circulation more.

The purpose of this utility model is in order to overcome weak point of the prior art, and a kind of compactness rational in infrastructure is provided, and makes full use of flue residue heat, non-pressure-bearing, multipurpose furnace horizontal commonly used that floor space is little.

The purpose of this utility model is achieved in that this stove mainly is made up of several parts such as body of heater shell, fire door, ash door, combustion chamber, chimney, smoke pipe, superheater tube, water-cooling walls, its structure is that body of heater is divided into upper and lower two parts by dividing plate, the dividing plate below is the combustion chamber, the rear side of combustion chamber is a lower flue, constitute water-cooling wall between the inwall of combustion chamber and lower flue and the body of heater shell, be provided with horizontal burner hearth superheater tube below lower flue, the two ends of this superheater tube are communicated with water-cooling wall; The dividing plate top is the smoke pipe overheated zone, the vertical smoke pipe of upper and lower two rows is set in this district, between the smoke pipe respectively the baffle plate by its two ends seal connection mutually, flue before constituting between front apron and the body of heater shell, backboard divides upper and lower two parts, Lower Half is the inwall of lower flue, constitutes upper flue between the first half and the body of heater shell, and the smoke pipe overheated zone is communicated with water-cooling wall by the interlayer that the two-layer dividing plate between the upper and lower flue constitutes.Recirculated water of the present utility model enters water-cooling wall and burner hearth superheater tube by the water intaking valve of fire door one side, enters the smoke pipe overheated zone again, and hot water is discharged by the hot-water line on the furnace roof, and back-water valve (BWV) is located on the body of heater shell of below, body of heater side.Heat exchange principle of the present utility model is: the coal seam is when combustion chambers burn, the water-cooling wall and the dividing plate of top of combustion chamber and the burner hearth superheater tube of lower flue bottom begin heat exchange around in the stove, the conduction feedwater, waste heat carries out heat exchange again by upper and lower vertical smoke pipe, the fuel gas that coal is discharged is fully burned, and reaching the effect of smoke abatement and dust control, dust deposit in flue can be removed easily by the flue door.

The utility model compared with prior art has the following advantages and effect:

1, body of heater adopts horizontal type structure, compact and reasonable, and promptly floor space is little, can enlarge area of heat-supply service again;

2, can make full use of heat, the heat energy of burning all conduction is given outside its water on every side, and its fume afterheat is also absorbed by water by the flue of three backhauls, and therefore heat is imitated high;

3, because flue belongs to the right angle complications, the ash door of every section flue can be set simultaneously, so dust deposit in flue is easy to remove;

4, because coal and flue gas thereof can be fully burned, so the flue gas that chimney is got rid of has reduced pollution relatively;

5, high-order storage tank can be set, realize Natural Circulation with deadweight by water.

The explanation of accompanying drawing drawing:

Fig. 1 is a side view of the present utility model.

Fig. 2 is a front view of the present utility model.

The utility model is described in further detail below in conjunction with (accompanying drawing) embodiment:

Present embodiment is by horizontal chamber furnace (oven) body case (16), combustion chamber (15), horizontal burner hearth superheater tube (14), water-cooling wall (13), lower flue (12), upper flue (10), preceding flue (1), chimney (8), the vertical smoke pipe of last row (22), under arrange vertical smoke pipe (20), smoke pipe overheated zone (21), dividing plate (18), preceding fire door (19), back fire door (11), preceding ash door (23), back ash door (9), water supply valve (27), blowoff valve (26), back-water valve (BWV) (17), expansion tank pipe (2), bathing pipe (4), heating pipe (5), steam pipe (7), Pressure gauge (3), thermometer (6), water level meter (28), high-order water nozzle (24), low level water nozzle (25) constitutes.Body of heater is divided into upper and lower two parts by dividing plate (18), dividing plate (18) below is combustion chamber (15), the rear side of combustion chamber (15) is lower flue (12), constitute water-cooling wall (13) between the inwall of combustion chamber (15) and lower flue (12) and the body of heater shell (16), this water-cooling wall (13) is around whole combustion chamber (15) and lower flue (12), in the below of lower flue (12) 4 horizontal superheater tubes (14) are set, the two ends of this superheater tube are communicated with water-cooling wall (13); Dividing plate (18) top is smoke pipe overheated zone (21), be provided with in this district, two arrange vertical smoke pipes (22) (20) down, wherein going up smoke exhaust pipe (22) is three layers, down smoke-discharging pipe (20) is two-layer, between the smoke pipe respectively the baffle plate by its two ends seal connection mutually, thereby constitute airtight smoke pipe overheated zone (21), flue (1) before constituting between front apron and the body of heater shell (16), on backboard divides, following two parts, Lower Half is the inwall of lower flue (12), constitute upper flue (10) between the first half and the body of heater shell (16), smoke pipe overheated zone (21) are by last, the interlayer that two-layer dividing plate between the lower flue (12) (10) constitutes is communicated with water-cooling wall (13).The position is equipped with preceding fire door (19) and back fire door (11) respectively before and after the body of heater of dividing plate (18) below, the position is equipped with preceding ash door (23) and back ash door (9) respectively before and after the body of heater of dividing plate (18) top, on the body of heater shell (16) of smoke pipe overheated zone (21) top, the expansion tank pipe (2) that is communicated with smoke pipe overheated zone (21) is housed respectively, bathing pipe (4), heating pipe (5), steam pipe (7), Pressure gauge (3), thermometer (6), on the body of heater shell (16) of the top of upper flue (10), the chimney (8) that is communicated with upper flue (10) is installed, water supply valve (27) and the blowoff valve (26) that is communicated with water-cooling wall (13) is housed respectively in bottom, preceding fire door both sides, in body of heater shell (16) bottom, both sides the back-water valve (BWV) (17) that is communicated with water-cooling wall (13) is housed respectively, the high-grade heat water nozzle (24) that is communicated with smoke pipe overheated zone (21) is housed respectively on body of heater shell (16) top, both sides, low level hot-water mouth (25) and water level meter (28).

Claims

1, a kind of horizontal normal pressure multipurpose furnace comprises body of heater shell, fire door, ash door, combustion chamber, chimney, it is characterized in that:

A, body of heater are divided into upper and lower two parts by dividing plate, the dividing plate below is the combustion chamber, and the rear side of combustion chamber is a lower flue, constitutes water-cooling wall between the inwall of combustion chamber and lower flue and the body of heater shell, be provided with horizontal burner hearth superheater tube below lower flue, the two ends of this superheater tube are communicated with water-cooling wall;

B, dividing plate top are the smoke pipe overheated zone, the vertical smoke pipe of upper and lower two rows is set in this district, between the smoke pipe respectively the baffle plate by its two ends seal connection mutually, flue before constituting between front apron and the body of heater shell, backboard divides upper and lower two parts, Lower Half is the inwall of lower flue, constitutes upper flue between the first half and the body of heater shell, and the smoke pipe overheated zone is communicated with water-cooling wall by the interlayer that the two-layer dividing plate between the upper and lower flue constitutes.

2, horizontal normal pressure multipurpose furnace according to claim 1 is characterized in that being arranged on the vertical smoke pipe in the smoke pipe overheated zone, and last row is three layers, and following row is for two-layer.

3, horizontal normal pressure multipurpose furnace according to claim 1 is characterized in that the position, body of heater front and back of dividing plate below is equipped with preceding fire door and back fire door respectively.

4, horizontal normal pressure multipurpose furnace according to claim 1 is characterized in that the position, body of heater front and back of dividing plate top is equipped with preceding ash door and back ash door respectively.

5, horizontal normal pressure multipurpose furnace according to claim 1, it is characterized in that expansion tank pipe, bathing pipe, heating pipe, steam pipe, Pressure gauge, the thermometer that is communicated with the smoke pipe overheated zone is housed respectively on the body of heater shell above the flue overheated zone, on the body of heater shell above the upper flue, the chimney that is communicated with upper flue is installed.

6, horizontal normal pressure multipurpose furnace according to claim 1 is characterized in that in bottom, preceding fire door both sides water supply valve and the blowoff valve that is communicated with water-cooling wall being housed respectively.

7, horizontal normal pressure multipurpose furnace according to claim 1 is characterized in that in bottom, body of heater shell both sides the back-water valve (BWV) that is communicated with water-cooling wall being housed respectively, and high-grade heat water nozzle, low level hot-water mouth and the water level meter that is communicated with the smoke pipe overheated zone is equipped with on top respectively.