CN212673509U

CN212673509U - Multilayer heat exchange device of granule electric fan heater

Info

Publication number: CN212673509U
Application number: CN202021090699.2U
Authority: CN
Inventors: 范群超
Original assignee: Zhejiang Zhoubo Science & Technology Co ltd
Current assignee: Zhejiang Zhibo Technology Co ltd
Priority date: 2020-06-12
Filing date: 2020-06-12
Publication date: 2021-03-09
Anticipated expiration: 2030-06-12

Abstract

The utility model provides a multilayer heat transfer device of granule electric fan heater belongs to combustion apparatus technical field. The inner wall of the heat exchange tube of the fan heater can be remained with a layer of soot, and if the inner wall of the heat exchange tube is irregularly cleaned, the heat exchange tube can be blocked, so that the heat exchange effect is influenced. The utility model discloses an go upward heat exchange tube, down heat exchange tube, deposition case, circulation case and smoke exhaust fan, the circulation incasement falls into heat transfer chamber and lower heat transfer chamber with its inner chamber through a baffle, the upper and lower both ends of down heat exchange tube respectively with heat transfer chamber and deposition case intercommunication down, go upward the upper and lower both ends of heat exchange tube respectively with last heat transfer chamber and deposition case intercommunication, combustion chamber and heat transfer chamber intercommunication down. The utility model has the advantages that the multi-layer step type conduction with the combustion chamber can be realized in the limited space, and the heat exchange area of the flue gas in the combustion chamber is increased; can dismantle, the design that opens and shuts through T template and closing plate, be convenient for clear up the cigarette ash in heat transfer chamber, lower heat transfer intracavity and the heat exchange tube, prevent that the heat exchange tube from blockking up.

Description

Multilayer heat exchange device of granule electric fan heater

Technical Field

The utility model belongs to the technical field of combustion apparatus, a multilayer heat transfer device of granule electric fan heater is related to.

Background

The particle warm air blower takes agricultural and forestry waste particles such as straws and the like as fuels, adopts a semi-gasification combustion mode, effectively avoids the problems of slag bonding and the like of the straw particles in the direct combustion process, adopts the accurate control of air distribution, feeding, gasification and combustion, and realizes high-efficiency clean combustion in an integrated machine.

Be provided with the combustion chamber in the electric fan heater and be used for burning the particulate matter, still be provided with the heat exchange tube in the electric fan heater, the flame that produces after the burning gets into in the heat exchange tube, the air intensification of heat exchange tube periphery, the air after the fan will heat up blows off, thereby realize the effect of warm braw, after long-time work, one deck cigarette ash can be remained to the heat exchange tube inner wall, if irregularly clear up, can plug up the heat exchange tube, thereby influence the heat transfer effect, and heat transfer device's heat transfer area is little, heat exchange efficiency crosses low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a heat transfer device that heat transfer area is big, heat exchange efficiency is high and the deashing is convenient to the above-mentioned problem that current granule electric fan heater exists.

The purpose of the utility model can be realized by the following technical proposal:

the utility model provides a multilayer heat transfer device of granule electric fan heater, includes upward heat exchange tube, deposition case, circulation case and smoke exhaust fan down, its characterized in that, the circulation incasement divide into heat transfer chamber and lower heat transfer chamber with its inner chamber through a baffle, the upper and lower both ends of heat exchange tube down communicate with heat transfer chamber and deposition case down respectively, the upper and lower both ends of going up the heat exchange tube respectively with last heat transfer chamber and deposition case intercommunication, combustion chamber and heat transfer chamber intercommunication down, smoke exhaust fan and last heat transfer chamber intercommunication.

In the above multilayer heat exchange device of the pellet fan heater, the top of the upper heat exchange cavity is provided with an opening, a sealing plate is movably covered at the opening, the partition plate comprises a fixed part and a detachable part, and the detachable part is connected with the fixed part through a detachable structure.

The flue gas in the combustion chamber passes through the lower heat exchange cavity, the downlink heat exchange tube, the uplink heat exchange tube and the upper heat exchange cavity in sequence, and is sucked by the smoke exhaust fan and then discharged.

In the multilayer heat exchange device of the particle fan heater, a partition plate is arranged in the dust accumulation box to divide an inner cavity of the dust accumulation box into a heat exchange dust cavity and a combustion dust cavity, the heat exchange dust cavity is communicated with the lower ends of the ascending heat exchange tube and the descending heat exchange tube, and the combustion dust cavity is communicated with the lower end of the combustion chamber.

In the multilayer heat exchange device of the particle fan heater, one side of the dust box is open, and a sealing plate is covered at the opening movably.

In the multilayer heat exchange device of the pellet fan heater, the detachable part comprises a T-shaped plate, the bottom of the T-shaped plate is opposite to the downward heat exchange tube and the combustion chamber, a T-shaped clamping groove is formed in the partition plate, and the shape of the T-shaped plate is matched with the shape of the T-shaped clamping groove.

In foretell granule electric fan heater's multilayer heat transfer device, detachable construction include a plurality of support bars, the fixed outer edge that sets up at the T template of support bar, the bottom surface of support bar is divided into welding part and supporting part, welding part and T template welded fastening, the supporting part surpasss the outer edge of T template and supports and lean on the baffle.

In the multilayer heat exchange device of the particle fan heater, a sealing layer is arranged on one surface, facing the upper heat exchange cavity, of the sealing plate, the shape of the sealing layer is matched with that of the inner cavity of the circulation box, and the bottom of the sealing layer abuts against the upper end faces of the supporting bars.

In the above multilayer heat exchange device of the pellet air heater, the smoke exhaust fan is fixedly arranged on the sealing plate, and a smoke outlet is formed in the sealing plate and communicated with the smoke exhaust fan.

In the multilayer heat exchange device of the particle fan heater, the lower heat exchange cavity is fixedly provided with a fire baffle plate for blocking flame in the combustion chamber, the lower end of the fire baffle plate is positioned between the downward heat exchange tube and the combustion chamber, and the upper end of the fire baffle plate inclines towards one end of the combustion chamber.

In the multilayer heat exchange device of the particle fan heater, the bottom of the lower heat exchange cavity is provided with an ash falling port, the ash falling port is provided with a guide plate convenient for ash falling, and the lower end of the guide plate is communicated with the ash deposition box.

Compared with the prior art, the multi-layer stepped type heat exchange device realizes multi-layer stepped type conduction with the combustion chamber in a limited space through the design of the circulating box and the heat exchange tube, greatly improves the heat exchange area of the flue gas in the combustion chamber, and has good heat exchange effect; can dismantle, the design that opens and shuts through T template and closing plate, be convenient for clear up the cigarette ash in heat transfer chamber, lower heat transfer intracavity and the heat exchange tube, prevent that the heat exchange tube from blockking up.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present invention;

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

fig. 3 is a cross-sectional view of the present invention;

FIG. 4 is a schematic view of the internal flue gas circulation of the present invention;

fig. 5 is a plan view of the circulation box of the present invention.

In the figure, 1, a combustion chamber; 2. a circulation box; 3. a partition plate; 4. an upper heat exchange chamber; 5. a lower heat exchange chamber; 6. a smoke exhaust fan; 7. a downward heat exchange tube; 8. an ascending heat exchange pipe; 9. an ash accumulation box; 10. a partition plate; 11. a heat exchange ash cavity; 12. a combustion ash chamber; 13. closing the plate; 14. a T-shaped plate; 15. a supporting strip; 16. a sealing plate; 17. a sealing layer; 18. a smoke outlet; 19. a fire shield; 20. a dust falling port; 21. a guide plate.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 3, the utility model discloses an go upward heat exchange tube 8, down heat exchange tube 7, deposition case 9, circulation case 2 and smoke exhaust fan 6, divide into heat transfer chamber 4 and lower heat transfer chamber 5 with its inner chamber through a baffle 3 in the circulation case 2, the upper and lower both ends of down heat exchange tube 7 communicate with heat transfer chamber 5 and deposition case 9 down respectively, go upward the upper and lower both ends of heat exchange tube 8 respectively with last heat transfer chamber 4 and deposition case 9 intercommunication, combustion chamber 1 communicates with heat transfer chamber 5 down, smoke exhaust fan 6 communicates with last heat transfer chamber 4.

Go up the open-top in heat transfer chamber 4, opening part activity lid closes a closing plate 16, smoke exhaust fan 6 fixed the setting on closing plate 16, it has a smoke outlet 18 to open in the closing plate 16, smoke outlet 18 and smoke exhaust fan 6 intercommunication, closing plate 16 towards the one side in heat transfer chamber 4 on be provided with sealing layer 17, sealing layer 17's appearance and circulation box 2's inner chamber shape phase-match, the bottom of sealing layer 17 supports and leans on the up end at support bar 15.

Baffle 3 includes fixed part and detachable part, through detachable construction connection between detachable part and the fixed part, detachable part include T template 14, T template 14's bottom is just to descending heat exchange tube 7 and combustion chamber 1, it has a T type draw-in groove to open on the baffle 3, T template 14's appearance and the shape phase-match of T type draw-in groove, detachable construction include a plurality of support bars 15, support bar 15 is fixed to be set up at T template 14's outer edge, support bar 15's bottom surface is divided into welding part and supporting part, welding part and T template 14 welded fastening, the supporting part surpasss T template 14 outer edge and supports and lean on baffle 3.

The ash accumulation box 9 is internally provided with a partition plate 10 which divides the inner cavity of the ash accumulation box into a heat exchange ash cavity 11 and a combustion ash cavity 12, the heat exchange ash cavity 11 is communicated with the lower ends of the ascending heat exchange tube 8 and the descending heat exchange tube 7, the combustion ash cavity 12 is communicated with the lower end of the combustion chamber 1, one side of the ash accumulation box 9 is opened, and a sealing plate 13 is movably covered at the opening.

The lower heat exchange cavity 5 is internally and fixedly provided with a fire baffle 19 for blocking flames in the combustion chamber 1, the lower end of the fire baffle 19 is positioned between the downward heat exchange tube 7 and the combustion chamber 1, the upper end of the fire baffle 19 inclines towards one end of the combustion chamber 1, the bottom of the lower heat exchange cavity 5 is provided with an ash falling port 20, a guide plate 21 convenient for ash falling is arranged at the ash falling port 20, and the lower end of the guide plate 21 is communicated with the ash deposition box 9.

As shown in fig. 4, the direction of the arrow in the figure is the flow direction of the flue gas, and the flue gas in the combustion chamber 1 passes through the lower heat exchange cavity 5, the downward heat exchange tube 7, the upward heat exchange tube 8 and the upper heat exchange cavity 4 in sequence, and is sucked by the smoke exhaust fan 6 and then discharged.

During the deashing, open closing plate 16 earlier, go up the mouth of pipe of going up heat exchange tube 8 and expose in last heat transfer chamber 4, pull down T type board 14 again, the last mouth of pipe of going up of heat exchange tube 7 and the last mouth of pipe of combustion chamber 1 all expose in heat transfer chamber 5 down, alright direct clearance goes up heat exchange tube 8 this moment, down heat exchange tube 7, go up heat transfer chamber 4, cigarette ash in heat transfer chamber 5 and the combustion chamber 1 down, go up the cigarette ash in heat transfer chamber 4 and the heat transfer chamber 5 down and can drop to deposition case 9 in the heat exchange tube in, also can follow ash falling port 20 and drop to deposition case 9 along deflector 21 in, open shrouding 13 at last, will correspond the ash receiving box in heat transfer ash chamber 11 and combustion ash chamber 12 respectively and take out the ash that falls.

It is to be understood that in the claims, the specification of the present invention, all "including … …" are to be interpreted in an open-ended manner, i.e. in a manner equivalent to "including at least … …", and not in a closed manner, i.e. in a manner not to be interpreted as "including … … only".

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a multilayer heat transfer device of granule electric fan heater, includes upward heat exchange tube (8), heat exchange tube (7) down, deposition case (9), circulation case (2) and smoke exhaust fan (6), its characterized in that, circulation case (2) in fall into heat transfer chamber (4) and heat transfer chamber (5) down with its inner chamber through a baffle (3), the upper and lower both ends of heat exchange tube (7) down communicate with heat transfer chamber (5) and deposition case (9) down respectively, the upper and lower both ends of going up heat exchange tube (8) communicate with last heat transfer chamber (4) and deposition case (9) respectively, combustion chamber (1) and heat transfer chamber (5) intercommunication down, smoke exhaust fan (6) and last heat transfer chamber (4) intercommunication.

2. The multi-layer heat exchange device of the particle fan heater as claimed in claim 1, wherein the top of the upper heat exchange cavity (4) is open, a sealing plate (16) is movably covered at the opening, the partition plate (3) comprises a fixed part and a detachable part, and the detachable part is connected with the fixed part through a detachable structure.

3. The multilayer heat exchange device of the particle fan heater as claimed in claim 1, wherein a partition plate (10) is arranged in the dust box (9) to divide the inner cavity of the dust box into a heat exchange dust cavity (11) and a combustion dust cavity (12), the heat exchange dust cavity (11) is communicated with the lower ends of the ascending heat exchange tube (8) and the descending heat exchange tube (7), and the combustion dust cavity (12) is communicated with the lower end of the combustion chamber (1).

4. The multi-layer heat exchange device of the particle fan heater as claimed in claim 1 or 3, wherein one side of the dust box (9) is open, and a closing plate (13) is movably covered at the opening.

5. The multilayer heat exchange device of the particle fan heater according to claim 2, wherein the detachable part comprises a T-shaped plate (14), the bottom of the T-shaped plate (14) is opposite to the downward heat exchange tube (7) and the combustion chamber (1), a T-shaped clamping groove is formed in the partition plate (3), and the shape of the T-shaped plate (14) is matched with the shape of the T-shaped clamping groove.

6. The multi-layer heat exchange device of the particle fan heater as claimed in claim 2, wherein the detachable structure comprises a plurality of support bars (15), the support bars (15) are fixedly arranged on the outer edge of the T-shaped plate (14), the bottom surface of each support bar (15) is divided into a welding part and a supporting part, the welding part is welded and fixed with the T-shaped plate (14), and the supporting part exceeds the outer edge of the T-shaped plate (14) and abuts against the partition plate (3).

7. The multilayer heat exchange device of the particle fan heater as claimed in claim 2, wherein a sealing layer (17) is arranged on one surface of the sealing plate (16) facing the upper heat exchange cavity (4), the shape of the sealing layer (17) is matched with the shape of the inner cavity of the circulation box (2), and the bottom of the sealing layer (17) is abutted against the upper end surface of the supporting bar (15).

8. The multilayer heat exchange device of the particle fan heater according to claim 2, wherein the smoke exhaust fan (6) is fixedly arranged on the sealing plate (16), a smoke outlet (18) is formed in the sealing plate (16), and the smoke outlet (18) is communicated with the smoke exhaust fan (6).

9. The multilayer heat exchange device of the particle fan heater as claimed in claim 1, wherein a fire damper (19) is fixedly arranged in the lower heat exchange cavity (5) and used for blocking flames in the combustion chamber (1), the lower end of the fire damper (19) is positioned between the downgoing heat exchange tube (7) and the combustion chamber (1), and the upper end of the fire damper (19) is inclined towards one end of the combustion chamber (1).

10. The multi-layer heat exchange device of the particle fan heater as claimed in claim 1, wherein the bottom of the lower heat exchange cavity (5) is provided with an ash falling port (20), a guide plate (21) facilitating ash falling is arranged at the ash falling port (20), and the lower end of the guide plate (21) is communicated with the ash deposition box (9).