CN205560686U - Under steam boiler that discharges fume - Google Patents

Abstract

The utility model relates to an under steam boiler that discharges fume in the heating device field, including furnace, the last combustor interface that is equipped with of furnace, furnace sets up in the water drum, is connected with into water takeover and steam on the water drum and takes over, the water drum both sides are equipped with the smoke box respectively, and through a plurality of tobacco pipes of passing water drum intercommunication, the tobacco pipe is located the furnace top between the smoke box, be equipped with the discharge flue in the water drum periphery and above being located the smoke box, go up the discharge flue and link to each other with the outlet flue, discharge flue under being equipped with in the water drum periphery and below being located the smoke box, switch -on furnace is taken over to the bottom of lower discharge flue through discharging fume, the discharge flue is put through with last discharge flue with arbitrary smoke box switch -on, another smoke box down. The utility model discloses a discharge fume the takeover, constitute that the water drum wall of discharge flue all becomes hot exchange area on water drum wall, tobacco pipe and the constitution of discharge flue down, hot exchange area obtains the increase, while combustor direct heating furnace, the water boil -off rate in the water drum gets a promotion. The device can regard as under steam boiler that discharges fume to use, and it uses safe and reliable.

Description

A kind of down smoke-discharging steam boiler

Technical field

This utility model relates to a kind of heating plant, particularly to a kind of down smoke-discharging steam boiler.

Background technology

Chinese patent database discloses a kind of internal heating type lower smoke exhausting high-efficient gasifying environment protection boiler, its number of patent application is: 01204070.3, filing date: 2001.02.26, publication No. is: CN2465049Y, date of publication is: 2001.12.12, and it is made up of combustion chamber and body of heater, and combustion chamber is arranged in body of heater, being formed with down smoke-discharging road between itself and body of heater, this down smoke-discharging road connects with the down smoke-discharging pipe on body of heater.It is disadvantageous in that: this device heat exchange area is narrow and small, and water vapor speed is slow, and flue gas distributes excessive velocities from flue simultaneously, and the waste heat in flue gas is underused.

Utility model content

The purpose of this utility model is to provide a kind of down smoke-discharging steam boiler, by optimizing the structure of this device, maximized utilizes heat energy so that it is can produce steam, be used.

The purpose of this utility model is achieved in that a kind of down smoke-discharging steam boiler, and including burner hearth, burner hearth is provided with combustion port, and burner hearth is arranged in water bag, and described water wraps connection to be had into water adapter and steam connection；Described water bag is respectively provided on two sides with smoke box, connects through the some smoke pipes through water bag between smoke box, and described smoke pipe is positioned at above burner hearth；Shui Bao periphery and be positioned at smoke box be arranged over annular upper smokejack, upper smokejack is connected with outlet flue；Be provided with the down smoke-discharging road of annular in Shui Bao periphery and being positioned at below smoke box, burner hearth is connected through smoke evacuation adapter in the bottom in down smoke-discharging road；Described down smoke-discharging road is directly connected with arbitrary smoke box, and another smoke box is directly connected with upper smokejack.

During utility model works, by water inlet adapter water filling in water bag, guarantee that the waterline in water bag reaches more than preset water level line, burner is arranged in combustion port, heating furnace during burner operation, burner hearth transfers heat to the water in water bag, the flue gas produced that simultaneously burns enters down smoke-discharging road by smoke evacuation adapter, then after a corresponding smoke box enters smoke pipe, another smoke box is entered back into, finally enter smokejack, discharged by outlet flue, water in water bag passes through burner hearth respectively, upper smokejack, down smoke-discharging road and the heating of smoke pipe, water vapour is formed after hot water boiling, water vapour is discharged from steam connection and is used.Compared with prior art, the beneficial effects of the utility model are: owing to smoke evacuation adapter is positioned on the downside of burner hearth sidewall, and smoke pipe runs through Shui Bao, so the water containment wall of smokejack all becomes heat exchange area on smoke adapter, the composition water containment wall in down smoke-discharging road, smoke pipe and composition, heat exchange area greatly increases, and the heat contained inside flue gas is also fully used；Burner directly heats burner hearth simultaneously, thus heat transmits the water in feedwater bag efficiently, and the water vapor speed in water bag gets a promotion.This device can use as down smoke-discharging steam boiler, and it is safe and reliable.

For reducing smoke too fast discharge in down smoke-discharging road, making the heat in flue gas fully transmit the water in feedwater bag, be provided with spiral fin in described down smoke-discharging road, spiral fin extends up to below corresponding smoke box along Shui Bao periphery spiral from the outlet of smoke evacuation adapter.

Discharging in burner hearth for the ease of flue gas and make flue gas begin to ramp up from the bottom in down smoke-discharging road, described smoke evacuation adapter is positioned at the lower section of combustion port, and smoke evacuation adapter is evenly equipped with two or more in burner hearth periphery.

Being easy to each smoke evacuation adapter discharge in corresponding fluid layer to make down smoke-discharging road form multiple fluid layer, described spiral fin is the multi-head spiral fin corresponding with smoke evacuation adapter number.

In order to fully absorb the heat in flue gas, described smoke pipe is provided with upper and lower two-layer, upper and lower two-layer smoke pipe Heterogeneous Permutation in a longitudinal direction.

In order to prevent the loss of heat, bottom described flue coaming plate periphery, Shui Bao top and water bag, it is provided with heat-insulation layer.

Accompanying drawing explanation

Fig. 1 is front view of the present utility model.

Fig. 2 is the left view of Fig. 1.

Wherein, 1 burner hearth, 101 combustion port, 2 water bags, 201 water inlet adapters, 202 steam connections, 203 blowdown connections, 3 flue coaming plates, smokejack on 301,302 down smoke-discharging roads, 302a spiral fin, 303 smoke evacuation adapters, 304 smoke boxes, 305 smoke pipes, 306 outlet flues, 4 heat-insulation layers, manhole on 5,6 times manholes, 7 times heat-insulation layers, 8 flame retardant coatings.

Detailed description of the invention

Such as Fig. 1, shown in 2, for a kind of down smoke-discharging steam boiler, including burner hearth 1, burner hearth 1 is provided with combustion port 101, and burner hearth 1 is arranged in water bag 2, connecting on water bag 2 and have into water adapter 201 and steam connection 202, bottom connects blowdown connection 203, and top is provided with manhole 5；Water bag 2 is respectively provided on two sides with smoke box 304, connects through the some smoke pipes 305 through water bag 2 between smoke box 304, and smoke pipe 305 is positioned at above burner hearth 1, and smoke pipe 305 is provided with upper and lower two-layer, upper and lower two-layer smoke pipe 305 Heterogeneous Permutation in a longitudinal direction；Water bag 2 periphery and be positioned at smoke box 304 be arranged over annular upper smokejack 301, upper smokejack 301 is connected with outlet flue 306；The down smoke-discharging road 302 of annular it is provided with in water bag 2 periphery and being positioned at below smoke box 304, burner hearth 1 is connected through smoke evacuation adapter 303 in the bottom in down smoke-discharging road 302, smoke evacuation adapter 303 is positioned at the lower section of combustion port 101, and smoke evacuation adapter 303 is evenly equipped with two or more in burner hearth 1 periphery；nullFor reducing smoke too fast eliminating in down smoke-discharging road 302，The heat in flue gas is made fully to transmit the water in feedwater bag 2，Spiral fin 302a it is provided with in down smoke-discharging road 302，Spiral fin 302a extends up to below corresponding smoke box 304 along water bag 2 periphery spiral from the outlet of smoke evacuation adapter 303，Spiral fin 302a is the multi-head spiral fin 302a corresponding with smoke evacuation adapter 303 number，Down smoke-discharging road 302 is directly connected with arbitrary smoke box 304，Another smoke box 304 is directly connected with upper smokejack 301，Flue coaming plate 3 periphery、It is provided with heat-insulation layer 4 bottom water bag 2 top and water bag 2，Burner hearth 1 inner bottom part connects lower manhole 6，Lower manhole 6 is positioned on the downside of water bag 2，It is positioned in burner hearth 1 on the upside of lower manhole 6 and is provided with lower heat-insulation layer 7 and flame retardant coating 8，Flame retardant coating 8 is positioned on the upside of lower heat-insulation layer 7.

During work, by water inlet adapter 201 water filling in water bag 2, guarantee that the waterline in water bag 2 reaches more than preset water level line, burner is arranged in combustion port 101, heating furnace 1 during burner operation, burner hearth 1 transfers heat to the water in water bag 2, the flue gas produced that simultaneously burns enters down smoke-discharging road 302 by smoke evacuation adapter 303, then after a corresponding smoke box 304 enters smoke pipe 305, another smoke box 304 is entered back into, finally enter smokejack 301, discharged by outlet flue 306, water in water bag 2 is respectively by burner hearth 1, upper smokejack 301, down smoke-discharging road 302 and the heating of smoke pipe 305, water vapour is formed after hot water boiling, water vapour is discharged from steam connection 202 and is used.

This utility model is not limited to above-described embodiment; on the basis of technical scheme disclosed in this utility model; those skilled in the art is according to disclosed technology contents; need not performing creative labour and some of which technical characteristic just can be made some replacements and deformation, these are replaced and deformation is all in protection domain of the present utility model.

Claims (10)

1. a down smoke-discharging steam boiler, including burner hearth, burner hearth is provided with combustion port, and burner hearth is arranged in water bag, and described water wraps connection to be had into water adapter and steam connection；It is characterized in that: described water bag is respectively provided on two sides with smoke box, connecting through the some smoke pipes through water bag between smoke box, described smoke pipe is positioned at above burner hearth；Shui Bao periphery and be positioned at smoke box be arranged over annular upper smokejack, upper smokejack is connected with outlet flue；Be provided with the down smoke-discharging road of annular in Shui Bao periphery and being positioned at below smoke box, burner hearth is connected through smoke evacuation adapter in the bottom in down smoke-discharging road；Described down smoke-discharging road is directly connected with arbitrary smoke box, and another smoke box is directly connected with upper smokejack.

A kind of down smoke-discharging steam boiler the most according to claim 1, it is characterised in that: being provided with spiral fin in described down smoke-discharging road, spiral fin extends up to below corresponding smoke box along Shui Bao periphery spiral from the outlet of smoke evacuation adapter.

A kind of down smoke-discharging steam boiler the most according to claim 1 and 2, it is characterised in that: described smoke evacuation adapter is positioned at the lower section of combustion port, and smoke evacuation adapter is evenly equipped with two or more in burner hearth periphery.

A kind of down smoke-discharging steam boiler the most according to claim 2, it is characterised in that: described spiral fin is the multi-head spiral fin corresponding with smoke evacuation adapter number.

A kind of down smoke-discharging steam boiler the most according to claim 1, it is characterised in that: described smoke pipe is provided with upper and lower two-layer, upper and lower two-layer smoke pipe Heterogeneous Permutation in a longitudinal direction.

A kind of down smoke-discharging steam boiler the most according to claim 1 and 2, it is characterised in that: described upper smokejack and down smoke-discharging road are enclosed in Shui Bao periphery by flue coaming plate and form.

A kind of down smoke-discharging steam boiler the most according to claim 6, it is characterised in that: it is provided with heat-insulation layer bottom described flue coaming plate periphery, Shui Bao top and water bag.

A kind of down smoke-discharging steam boiler the most according to claim 1 and 2, it is characterised in that: connect bottom described water bag and have blowdown connection.

A kind of down smoke-discharging steam boiler the most according to claim 1 and 2, it is characterised in that: described Shui Bao top is provided with manhole.

A kind of down smoke-discharging steam boiler the most according to claim 1 and 2, it is characterized in that: described burner hearth inner bottom part connects lower manhole, lower manhole is positioned on the downside of water bag, is positioned on the upside of lower manhole and is provided with lower heat-insulation layer and flame retardant coating in burner hearth, and flame retardant coating is positioned on the upside of lower heat-insulation layer.