CN202792505U

CN202792505U - Biomass two-way energy saving civil boiler

Info

Publication number: CN202792505U
Application number: CN 201220324373
Authority: CN
Inventors: 孙志刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-06-26
Filing date: 2012-06-26
Publication date: 2013-03-13
Anticipated expiration: 2022-06-26

Abstract

The utility model relates to a stove namely a biomass two-way energy saving civil boiler. The biomass two-way energy saving civil boiler comprises a boiler body (1), a hearth (3), a fire grate (5) and a flue (6). A smoke outlet (17) is arranged between the hearth (3) and the flue (6). A double layer water jacket (2) is arranged on the periphery of the boiler body (1). The biomass two-way energy saving civil boiler is characterized in that multiple layers of vertical separating plates (7) are arranged inside the flue (6), the flue (6) is divided into a plurality of cavity channels (9) which are connected head to tail, a tail end of the cavity channels (9) is communicated with an outlet (12) of the flue (6). The biomass two-way energy saving civil boiler has the advantages that the direction of smoke is changed more than once, the smoke is discharged after reciprocating circulation, burn-off rate of fuel is increased greatly, wastage rate of heat is reduced obviously, heat efficiency is improved remarkably and a win-win situation between energy saving effect and environmental benefit is achieved. The biomass two-way energy saving civil boiler further has the advantages of being simple in structure, low in cost, safe, reliable and the like. The biomass two-way energy saving civil boiler is especially applicable to burning utilization of biomass and very considerable in market prospect.

Description

Living beings bi-directional energy-saving civil boiler

Technical field

The utility model relates to a kind of stove and accessory, i.e. a kind of living beings bi-directional energy-saving civil boiler.

Background technology

In recent years, along with the fast development of China's economy, coal electric resources day is becoming tight, and the biomass fuels such as agricultural crop straw come into one's own., the index such as the proportion of biomass fuel, caloric value and coal have very large difference, and existing coal-burning boiler is difficult to the requirement of adapted biomass fuel.For this reason, people have developed multiple boiler with biomass fuel.Though it is different that present biomass fuel boiler and the dimensions of coal-burning boiler have, structural principle changes little, all is to be made of body of heater, burner hearth, fire grate and flue etc., and flue gas enters atmosphere from flue.Because the density of biomass fuel is less, the negative pressure of boiler flue can be discharged into unburnt fuel still in the atmosphere together with heat, has both wasted heat energy, has reduced the thermal efficiency, has polluted again environment, and this is one of difficult problem of running into of existing biomass fuel boiler.

Summary of the invention

The purpose of this utility model provide a kind of can burning-used biologic mass fuel, and thermal loss is little, the thermal efficiency is high, alleviate the civil boiler of environmental pollution.

Above-mentioned purpose is realized by following technical scheme: develop a kind of living beings bi-directional energy-saving civil boiler, comprise body of heater, burner hearth, fire grate and flue, be provided with exhaust opening between burner hearth and the flue, has double-layer water jacket around the body of heater, be characterized in: the dividing plate that said flue the inside is erect by multilayer is divided into a plurality of end to end cavities to flue, and the end of cavity communicates with the outlet of flue.

Plate face and the flue fore-and-aft direction of said dividing plate are perpendicular.

The plate face of said dividing plate parallels with the flue fore-and-aft direction.

Water pipe is equipped with in said cavity the inside, and water pipe communicates with the water jacket of body of heater.

Above the said body of heater bell is arranged, the side is provided with up and down two fire doors.

Said exhaust opening has two, the upper exhaust opening in upper furnace, and another is the down smoke-discharging mouth below fire grate, but all is provided with the shrouding of switch on two exhaust openings.

The outlet of said flue has two, and one is the upper outlet of flue top, and another is the side outlet of flue one side, but two outlets are equipped with the plate of switch.

The beneficial effects of the utility model are: flue gas is repeatedly break-in in flue, emit again after the reciprocation cycle, the fuel burn-off rate significantly increases, the turnover rate of heat obviously reduces, the thermal efficiency significantly improves, and energy-saving effect and environmental benefit have realized doulbe-sides' victory, and has the advantages such as simple in structure, with low cost, safe and reliable, be particularly suitable for the burning utilization of biomass fuel, market prospects are very considerable.

Description of drawings

Fig. 1 is the front view of the first embodiment;

Fig. 2 is the top view of the first embodiment;

Fig. 3 is the top view of the second embodiment;

Fig. 4 is the front view of the third embodiment;

Fig. 5 is a kind of working state schematic representation of the 4th kind of embodiment;

Fig. 6 is the another kind of working state schematic representation of the 4th kind of embodiment;

Fig. 7 is the front view of the 5th kind of embodiment;

Fig. 8 is the top view of the 5th kind of embodiment.

Among the figure as seen: body of heater 1, water jacket 2, burner hearth 3, fire door 4, fire grate 5, flue 6, dividing plate 7, return pipe 8, cavity 9, hot-water line 10, water pipe 11, outlet 12, passage 13, exhaust opening 14, bell 15, upper exhaust opening 16, down smoke-discharging mouth 17, shrouding 18, upper outlet 19, side outlet 20, plate 21.

The specific embodiment

The total design of the utility model is that the flue the inside is divided into a plurality of cavitys to flue by multilayer insulating panel, and the emission path of prolong smoke is better reclaimed the heat in the flue gas, avoids the loss of light Fuel, for biomass fuel provides good burning situation.The below introduces four embodiment around this design.

The first embodiment: as shown in Figure 1 and Figure 2, this living beings bi-directional energy-saving civil boiler is to be made of body of heater 1, burner hearth 3, fire door 4, fire grate 5, flue 6 etc., wherein, has exhaust opening 14 to communicate between burner hearth 3 and the flue 6.Body of heater 1 is the water jacket 2 that double-deck wallboard surrounds, and during use, water jacket 2 communicates with hot equipment of usefulness such as warmers by hot-water line 10 and return pipe 8.The characteristics of this stove and accessory are: the dividing plate 7 that flue 6 the insides are erect by multilayer is divided into a plurality of cavities 9 to flue 6, have passage 13 on the dividing plate 7 between the adjacent cavity 9, stagger up and down in passage 13 positions on the adjacent separator 7, each cavity 9 is end to end, and last cavity 9 communicates with the outlet of flue 6.During work, flue gas enters after the flue 6, can not directly discharge, but press shown in the arrow among the figure, and the cavity bidirectional reciprocating walking 9 about that forms along dividing plate 7 is at last from outlet 12 discharges of flue 6.Like this, significantly prolong the time of contact of flue gas and water jacket 2, and heat exchange is more abundant.In order to improve the endothermic effect of water jacket 2, in cavity 9 the insides of flue 6 a plurality of water pipes 10 are housed also, water pipe 10 two ends communicate with the water jacket 2 of body of heater 1, have strengthened heat exchange area.

In addition, also be provided with bell 15 above the body of heater 1, the side of body of heater 1 is provided with up and down two fire doors 4.Bell 15 is convenient to install pan, heats up water and cooks.Two fire doors 4 are convenient to load fuel, supplemental oxygen, processing ashes and are observed the condition of a fire.

Experiment shows that this boiler is very suitable for crop straw fuel, and the stove and accessory that thermal efficiency ratio is not established buffler improves more than 20%.The combustion rate of fuel improves more than 8%, and the discharge capacity of the pollutants such as tar reduces more than 70%, is expected to become the first-selected stove and accessory of biomass fuel.

The stove and accessory that the second embodiment: Fig. 3 introduces and the stove and accessory of the first embodiment are basic identical, and difference is that variation has occured the direction of dividing plate 7, and plate face and flue 6 fore-and-aft directions of last embodiment dividing plate 7 are perpendicular.These routine dividing plate 7 plate faces parallel with the flue fore-and-aft direction.Simultaneously, the position of the outlet 12 of the exhaust opening 14 of burner hearth 3 and flue 6 also will change accordingly.The form of this example explanation dividing plate 7 can be diversified, as long as can be divided into a plurality of end to end reciprocal cavities 9 to flue 6, prolong smoke all belongs to the scope that is equal to by the scheme in path.

The third embodiment: as shown in Figure 4, the dividing plate 7 of flue 6 the insides also is the water jacket 2 that is surrounded by double-deck wallboard, and communicates with body of heater 1 water jacket 2 on every side.Like this, can further strengthen the area of heat exchange, improve the thermal efficiency.

The structure of the 4th kind of embodiment: Fig. 5,6 stove and accessorys of introducing and the first embodiment is basic identical, different is: the exhaust opening 14 of burner hearth 3 has two, one is the upper exhaust opening 16 on burner hearth 3 tops, another is the down smoke-discharging mouth 17 below fire grate 5, but all is provided with the shrouding 18 of switch on two exhaust openings.During work, as shown in Figure 5, exhaust opening 16 in the unlatching, close down smoke-discharging mouth 17, and flue gas can only enter flue 6 from upper exhaust opening 16.As shown in Figure 6, close and close exhaust opening 16, open down smoke-discharging mouth 17, flue gas will be passed down through fire grate 5, enters flue 6 from down smoke-discharging mouth 17.First kind of way is the fume exhausting type of relatively commonly using, and flue gas resistance is less, and it is more vigorous to burn.Second way flue gas resistance is larger, and fired state eases up, and is not needing very hot oven, gives as security in this way fire when needing to reduce burning velocity.

Shown in the 5th kind of embodiment: Fig. 7,8, the outlet 12 of flue 6 has two, and one is the upper outlet 19 on flue 6 tops, and another is that the side of flue 6 one sides goes out 20, but two outlets are equipped with the plate 21 of switch.Close upper outlet 19, open side outlet 20, flue gas can be discharged from side outlet 20, be suitable for the position lower use hot equipment, such as the heated kang in room etc.Open upper outlet 19, close side outlet 20, flue gas namely enters atmosphere from upper outlet 19.Also two outlets can be opened simultaneously as required or quantitatively open.

Claims

1. living beings bi-directional energy-saving civil boiler, comprise body of heater (1), burner hearth (3), fire grate (5) and flue (6), be provided with exhaust opening (14) between burner hearth (3) and the flue (6), body of heater (1) has double-layer water jacket (2) on every side, it is characterized in that: the dividing plate (7) that said flue (6) the inside is erect by multilayer is divided into a plurality of end to end cavities (9) to flue (6), and the end of cavity (9) communicates with the outlet (12) of flue (6).

2. a kind of living beings bi-directional energy-saving civil boiler according to claim 1, it is characterized in that: the plate face of said dividing plate (7) and flue (6) fore-and-aft direction are perpendicular.

3. a kind of living beings bi-directional energy-saving civil boiler according to claim 1, it is characterized in that: the plate face of said dividing plate (7) parallels with flue (6) fore-and-aft direction.

4. a kind of living beings bi-directional energy-saving civil boiler according to claim 1 is characterized in that: water pipe (11) is equipped with in said cavity (9) the inside, and water pipe (11) communicates with the water jacket of body of heater (1).

5. a kind of living beings bi-directional energy-saving civil boiler according to claim 1 is characterized in that: bell (15) is arranged, two fire doors (4) about the side is provided with above the said body of heater (1).

6. a kind of living beings bi-directional energy-saving civil boiler according to claim 1, it is characterized in that: said exhaust opening (14) has two, upper exhaust opening (16) on burner hearth (3) top, another is the down smoke-discharging mouth (17) below fire grate, two exhaust openings (14) but on all be provided with the shrouding (18) of switch.

7. a kind of living beings bi-directional energy-saving civil boiler according to claim 1, it is characterized in that: the outlet (12) of said flue (6) has two, one is the upper outlet (19) of flue (6) top, another is the side outlet (20) of flue one side, but two outlets are equipped with the plate (21) of switch.