CN201764540U

CN201764540U - Backfire boiler

Info

Publication number: CN201764540U
Application number: CN2010202241334U
Authority: CN
Inventors: 史建潮
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-06-08
Filing date: 2010-06-08
Publication date: 2011-03-16
Anticipated expiration: 2020-06-08

Abstract

The utility model provides a backfire boiler, which comprises a boiler body with a water interlayer and a chimney with a water interlayer, wherein the chimney is internally provided with a chimney flue; an ash chamber is arranged at the bottom of the boiler body; a boiler furnace is arranged at the middle part of the boiler body; a boiler platform is arranged at the upper part of the boiler body; a smoke outlet is arranged on the side surface of the boiler platform; the chimney is arranged on the side surface of the boiler body; one side of the chimney arranged on the boiler body and provided with the smoke outlet is connected with the boiler body by a backfire flue; and the upper part of the backfire flue is communicated with the smoke outlet; and the lower part of the backfire flue is communicated with the lower part of the chimney flue. The backfire boiler provided by the utility model has the advantages of sufficient combustion of fuels and high utilization ratio of heat; and compared with the prior art, the fuel consumption of the backfire boiler is reduced by 25-40%.

Description

A kind of burning boiler that returns

Technical field

The utility model relates to a kind of boiler, relates in particular to a kind of boiler that burns flue of bringing back to.

Background technology

Existing cooking and the dual-purpose direct-fired boiler of heating, generally comprise body of heater with water interlayer and chimney with water interlayer, in order to make full use of heat, in the chimney flue, be provided with chimney heating watercore, chimney heating watercore water interlayer interior with body of heater and that chimney is interior communicates; The bottom of body of heater is a cinder chamber, and the opening of cinder chamber is an air inlet; The middle part of body of heater is a burner hearth, and the top of body of heater is table, has outlet flue in the table side, is provided with fire bars between cinder chamber and described burner hearth, and fuel (as coal) is placed on the fire bars, and chimney is positioned on the body of heater, and chimney flue bottom and outlet flue communicate.

There is the problem of two aspects in existing boiler: fuel combustion is insufficient, and the flue gas that shows as discharge is a black; Fuel heat utilization ratio is not high, and the gas temperature that shows as outlet flue is still very high.

The utility model content

The technical problems to be solved in the utility model, the internal structure of change boiler makes full combustion of fuel, improve the Btu utilization efficient of fuel simultaneously, thereby energy savings is reduced expenses.

The utility model is achieved through the following technical solutions: a kind of burning boiler that returns, comprise body of heater with water interlayer and chimney with water interlayer, be provided with the chimney flue in the chimney, the bottom of described body of heater is a cinder chamber, the middle part of described body of heater is a burner hearth, the top of described body of heater is table, and described table side has outlet flue; It is characterized in that, described chimney described body of heater offer described outlet flue a side and with described body of heater between burn flue and be connected by returning, the described top of burning flue of returning communicates with described outlet flue, and the described bottom of burning flue of returning communicates with the bottom of described chimney flue.

Dual-purpose in order to warm oneself and to cook, as preferably, on described table, also be stamped stone or metal plate for standing a stove on as a precaution against fire, when heating, cover stone or metal plate for standing a stove on as a precaution against fire, when cooking, open stone or metal plate for standing a stove on as a precaution against fire, put cooker.

In order to improve the heat transference efficiency between flame and the water interlayer, as preferably, diminish gradually from top to bottom at the diameter of the cross section of described burner hearth.

In order to make full combustion of fuel, as preferably, between described burner hearth and described table, also be provided with secondary combustion chamber, be used for the imflammable gas that fuel combustion produces, offer the secondary air mouth that communicates with described secondary combustion chamber on the outer wall of described body of heater, the indoor columned stove circle of thin-walled hollow that is provided with of described second-time burning offers pore on the wall of described stove circle.

Preferably, the pore on the wall of described stove circle is two rows.

Preferably, in order to make full use of the heat energy that fuel produces, described return to burn in the flue also be provided with some flue heating pipes, be used for absorbing the heat of flue hot gas, the interior water interlayer of water interlayer in described flue heating pipe and the described body of heater and described chimney communicates.

Compare with existing boiler, the burning boiler that returns of the present utility model has following beneficial effect, and fuel combustion is abundant, Btu utilization efficient height, and fuel consumption has reduced 25-40%.

Description of drawings

Fig. 1 is the structural representation that returns the embodiment of burning boiler of the present utility model;

Fig. 2 is the schematic perspective view that returns the embodiment of burning boiler of the present utility model;

Fig. 3 is the structural representation of stove circle among the embodiment that returns burning boiler of the present utility model.

The specific embodiment

Describe embodiment of the present utility model with reference to the accompanying drawings in detail.

As shown in Figure 1 and Figure 2, the burning boiler that returns of the present utility model, comprise body of heater 1 with water interlayer 13 and chimney 5 with water interlayer 51, be provided with chimney flue 56 in the chimney 5, in chimney flue 56, be provided with the chimney 5 heating watercores 52 of chimney water interlayer 51, be interconnected between water interlayer 13 in chimney heating watercore 52, the body of heater 1 and the water interlayer 51 in the chimney 5; The bottom of body of heater 1 is a cinder chamber 11, and the opening of cinder chamber 11 is an air inlet 111; The middle part of body of heater 1 is a burner hearth 16, and the top of body of heater 1 is table 17, and table 17 sides have outlet flue 18, is provided with fire bars 4 between cinder chamber 11 and the burner hearth 16, in order to support coal-fired 3; Chimney 5 is positioned at a side that offers outlet flue 18 of body of heater 1, and chimney 5 is connected with body of heater 1 by returning burning flue 55, returns the top of burning flue 55 and communicates with outlet flue 18, and the bottom communicates with the bottom of chimney flue 56.Cold water enters from the water inlet 22 of body of heater 1 bottom, and through water interlayer 51 in the water interlayer 13 in the body of heater 1, chimney heating watercore 52, the chimney 5, hot water is discharged from the delivery port 54 of chimney top in the heating back.The high-temperature gas passes outlet flue 18 that fuel combustion produces, burn flue 55 through returning downwards, enter the bottom of chimney flue 56, discharge at the top that then just rises to chimney 5, high-temperature gas is in through the process of returning burning flue 55 and chimney flue 56, water interlayer 13 in the heating furnace body and the water interlayer 51 in the chimney make full use of heat, have reduced the temperature of the outlet flue of chimney 5.

Dual-purpose in order to warm oneself and to cook, as preferably, on table 17, can also be stamped stone or metal plate for standing a stove on as a precaution against fire 14, when heating, cover stone or metal plate for standing a stove on as a precaution against fire 14, when cooking, open stone or metal plate for standing a stove on as a precaution against fire 14, put cooker.

In order to improve the heat transference efficiency between flame and the water interlayer, as preferably, the cross-sectional diameter of burner hearth 16 diminishes from top to bottom gradually, so not only water interlayer 13 is arranged in the side of flame, water interlayer 13 is also arranged above flame, thereby increased the contact area of flame and water interlayer 13, improved Btu utilization efficient.

In order further to improve the efficiency of combustion of fuel, as preferably, between burner hearth 16 and table 17, also be provided with secondary combustion chamber, be used for the imflammable gas that the first time, combustion process produced that burns, offer the secondary air mouth 12 that communicates with secondary combustion chamber on the outer wall of body of heater 1; The indoor columned stove circle 15 of thin-walled hollow that is provided with as shown in Figure 3 of second-time burning offers pore 151 on the wall of described stove circle 15.

As preferably, the pore on the wall of stove circle can be two rows.

Preferably, in order to make full use of the heat energy that fuel produces, also be provided with some flue heating pipes 21 returning to burn in the flue 55, be used for absorbing and return the heat that burns flue 55 hot gas, water interlayer 13 in flue heating pipe 21 and the body of heater 1 and chimney 5 interior water interlayers 51 communicate.

It is abundant to the utlity model has fuel combustion, the advantage that Btu utilization efficient is high, for example, use the coal of 3 kilograms of homogenous quantities that cold water is heated to 85-95 degree centigrade, the burning boiler that returns of the present utility model can go out 150 kilograms of hot water, plain cylindrical furnace has only double centner, and the utility model has improved 50% than the Btu utilization efficient of plain cylindrical furnace.

Certainly; the above is a preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also are considered as protection domain of the present utility model.

Claims

1. one kind is returned burning boiler, comprises body of heater with water interlayer and the chimney with water interlayer, is provided with the chimney flue in the chimney, the bottom of described body of heater is a cinder chamber, the middle part of described body of heater is a burner hearth, and the top of described body of heater is table, and described table side has outlet flue; It is characterized in that, described chimney described body of heater offer described outlet flue a side and with described body of heater between burn flue and be connected by returning, the described top of burning flue of returning communicates with described outlet flue, and the described bottom of burning flue of returning communicates with the bottom of described chimney flue.

2. the burning boiler that returns as claimed in claim 1 is characterized in that, also is stamped stone or metal plate for standing a stove on as a precaution against fire on described table.

3. the burning boiler that returns as claimed in claim 1 or 2 is characterized in that the diameter of the cross section of described burner hearth diminishes from top to bottom gradually.

4. the burning boiler that returns as claimed in claim 1 or 2, it is characterized in that, between described burner hearth and described table, also be provided with secondary combustion chamber, offer the secondary air mouth that communicates with described secondary combustion chamber on the outer wall of described body of heater, the indoor columned stove circle of thin-walled hollow that is provided with of described second-time burning offers pore on the wall of described stove circle.

5. the burning boiler that returns as claimed in claim 3, it is characterized in that, between described burner hearth and described table, also be provided with secondary combustion chamber, offer the secondary air mouth that communicates with described secondary combustion chamber on the outer wall of described body of heater, the indoor columned stove circle of thin-walled hollow that is provided with of described second-time burning offers pore on the wall of described stove circle.

6. the burning boiler that returns as claimed in claim 4 is characterized in that the pore on the wall of described stove circle is two rows.

7. the burning boiler that returns as claimed in claim 5 is characterized in that the pore on the wall of described stove circle is two rows.

8. the burning boiler that returns as claimed in claim 1 or 2 is characterized in that, described return to burn in the flue also be provided with a plurality of flue heat water pipes, the interior water interlayer of water interlayer in described a plurality of flue heat water pipes and the described body of heater and described chimney communicates.