CN213208727U

CN213208727U - Furnace heat exchange device with small occupied space and favorable heat exchange

Info

Publication number: CN213208727U
Application number: CN202021099337.XU
Authority: CN
Inventors: 高永军; 高如军
Original assignee: Hebei Yechuang Technology Co ltd
Current assignee: Handan Yechuang Energy Saving Technology Co ltd
Priority date: 2020-06-15
Filing date: 2020-06-15
Publication date: 2021-05-14
Anticipated expiration: 2030-06-15

Abstract

The utility model discloses a small-occupied-space combustion furnace heat exchange device beneficial to heat exchange, belonging to the technical field of energy conversion equipment. The utility model discloses a casing, be equipped with flue gas passageway and medium passageway in the casing, flue gas flow direction in the flue gas passageway is vertical serpentine circuit, medium flow direction in the medium passageway is the return circuit of spiraling of horizontal direction, flue gas passageway's inlet fume and exhaust port are located the diapire and the lateral wall of casing respectively, medium passageway's input port and delivery outlet all are located the lateral wall. The utility model discloses can improve heat transfer medium's output temperature, improve thermal utilization ratio, increase heat exchange efficiency. The emission temperature of the flue gas is reduced, and the environmental pollution is reduced.

Description

Furnace heat exchange device with small occupied space and favorable heat exchange

Technical Field

The utility model belongs to the technical field of energy conversion equipment, especially, relate to a furnace heat transfer device that occupation space is little and do benefit to the heat transfer.

Background

The heat exchanger is energy-saving equipment for realizing heat transfer between materials between two or more than two fluids with different temperatures, so that heat is transferred from the fluid with higher temperature to the fluid with lower temperature. The heat exchanger of the existing combustion furnace generally has the following characteristics: large occupied space, low heat exchange efficiency and overhigh temperature of the discharged flue gas, thereby causing environmental pollution.

Disclosure of Invention

The utility model provides a little and do benefit to burner heat transfer device of heat transfer of occupation space, it can effectively reduce environmental pollution, improves heat exchange efficiency.

The utility model provides a little and do benefit to burner heat transfer device of heat transfer of occupation space, a serial communication port, which comprises a housin, be equipped with flue gas passageway and medium passageway in the casing, flue gas flow direction in the flue gas passageway is vertical serpentine circuit, the medium flow direction in the medium passageway is the circuit that spirals of horizontal direction, flue gas passageway advance the mouth and the exhaust port is located the diapire and the lateral wall of casing respectively, medium passageway's input port and delivery outlet all are located the lateral wall.

The furnace heat exchange device which occupies small space and is beneficial to heat exchange is provided with a flue gas channel and a medium channel which are both in a plate-shaped structure, the tail end of the medium channel is also provided with an output pipe, the medium channel is coiled in a shape of a Chinese character 'hui' from the periphery to the center of the shell, the output pipe penetrates through the side wall of the medium channel, one end of the output pipe is communicated with the output end of the medium channel, and the other end of the output pipe is communicated with the output port of the medium channel;

the smoke channel is snakelike, the smoke channel is longitudinally inserted in the return stroke of the medium channel, and two ends of the smoke channel are respectively communicated with the smoke inlet and the smoke outlet.

The heat exchange device of the combustion furnace, which occupies a small space and facilitates heat exchange, is characterized in that the cross section of the shell is rectangular, the medium channel is plate-shaped and is provided with three return strokes.

Above-mentioned occupation space is little and do benefit to burner heat transfer device of heat transfer, the flue gas passageway includes two-layer trachea, one deck muffler and apron, and the bottom surface of apron is equipped with the recess, and the trachea equipartition is in the return stroke in the inboard of medium passageway and the outside respectively on two-layer trachea, and the muffler is located the return stroke in medium passageway intermediate level, and the apron lid is at the last trachea of nexine and the top of muffler and with the sealed intercommunication of last trachea and muffler of nexine, the bottom of muffler and the bottom intercommunication of outer last trachea, outer last trachea and exhaust port intercommunication, the tracheal bottom and the smoke inlet intercommunication of last of nexine.

According to the combustion furnace heat exchange device which occupies a small space and is beneficial to heat exchange, the center of the return stroke of the medium channel is the flue inlet (15), and the top end and the bottom end of the flue inlet (15) are respectively communicated with the groove at the bottom of the cover plate and the smoke inlet; the medium channel is characterized in that an air blower is additionally arranged at an input port of the medium channel, and an induced draft fan is additionally arranged at a smoke exhaust port.

The furnace heat exchange device which occupies a small space and is favorable for heat exchange is characterized in that the flue gas channel is formed by welding metal plates, the longitudinal section of the flue gas channel is rectangular, and the cross section of the medium channel is rectangular.

Compared with the prior art, the utility model discloses a flue gas passageway and medium passageway adopt platelike, organically insert the flue gas passageway and establish in the medium passageway. Compact structure and suitability for industrialized mass production. In the use, cold medium gets into in the casing from the one end that flue gas temperature is low, exports from the one end that flue gas temperature is high, can improve the output temperature of medium like this, has improved thermal utilization ratio, has increased heat exchange efficiency. The emission temperature of the flue gas is reduced, and the environmental pollution is reduced.

Drawings

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

FIG. 2 is a front view of the present invention with the cover removed;

FIG. 3 is a left side view of the housing of FIG. 1;

FIG. 4 is a top view of FIG. 2;

FIG. 5 is a cross-sectional view taken along line C-C of FIG. 4;

FIG. 6 is a cross-sectional view taken along line E-E of FIG. 1;

FIG. 7 is a flow diagram of the medium in the medium channel of the present invention;

FIG. 8 is a flow chart of the flue gas in the flue gas channel of the present invention;

reference numerals in the drawings denote: 1. the smoke-gas exhaust device comprises a shell, a smoke channel 2, a medium channel 3, an input port 4, an output port 5, an output pipe 6, a smoke inlet 7, a smoke exhaust port 8, an upper air pipe 9, an air return pipe 10, a cover plate 11, a groove 12, a blower 13, an induced draft fan 14 and a flue inlet 15.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are provided to illustrate the invention.

As shown in fig. 1 to 8, the utility model discloses a casing 1, be equipped with flue gas passageway 2 and medium passageway 3 in the casing 1, flue gas passageway 2 and medium passageway 3 are platelike structure, the medium flow direction in the medium passageway 3 is the spiral loop of horizontal direction, input port 4 and the delivery outlet 5 of medium passageway 3 all are located the lateral wall. The medium channel 3 is a zigzag coil cloth from the periphery to the center of the shell 1, the tail end of the medium channel 3 is further provided with an output pipe 6, the output pipe 6 penetrates through the side wall of the medium channel 3 to be connected with an output port 5, and in order to accelerate the fluidity of the medium, an air blower 13 or a pump is additionally arranged at the input port 4 of the medium channel 3, so that the heat exchange efficiency can be improved.

Flue gas flow direction in the flue gas passageway 2 is vertical snakelike return circuit, flue gas passageway 2 advances smoke mouth 7 and exhaust port 8 and is located the diapire and the lateral wall of casing 1 respectively, exhaust port 8 adds and is equipped with draught fan 14.

Referring to fig. 6, 7 and 8, preferably, the cross section of the shell 1 is rectangular, the flue gas channel 2 is formed by welding metal plates, the longitudinal section of the flue gas channel 2 is rectangular, and the cross section of the medium channel 3 is rectangular. The medium channel 3 is of a plate-shaped clip structure and is provided with three return strokes. Flue gas passageway 2 includes two-layer last trachea 9, one deck muffler 10 and apron 11, and the bottom surface of apron 11 is equipped with recess 12, and two-layer last trachea 9 equipartition is in the return stroke in the inboard of medium passageway 3 and the outside respectively, and muffler 10 is located the return stroke in medium passageway 3 intermediate level, and apron 11 covers the top of last trachea 9 and muffler 10 of nexine and with the sealed intercommunication of last trachea 9 and muffler 10 of nexine, and the bottom of muffler 10 communicates with the bottom of outer last trachea 9, outer last trachea 9 and exhaust port 8 intercommunication, the bottom and the smoke inlet 7 intercommunication of the last trachea 9 of nexine. Therefore, the smoke channel 2 is vertically inserted in the return stroke of the medium channel 3 in a snake shape, and two ends of the smoke channel 2 are respectively communicated with the smoke inlet 7 and the smoke outlet 8. Through the arrangement, the flue gas enters the snake-shaped flue gas channel 2 from the middle of the bottom of the shell 1, after the heat of the hot flue gas is transferred to the gas or liquid in the medium channel 3 through the side wall of the flue gas channel 2, the flue gas after final heat exchange is discharged from the smoke outlet 8 on the outer side of the shell 1 under the action of the induced draft fan 14.

Referring to fig. 5 and 8, since the medium channel 3 is coiled from the periphery to the center, a rectangular channel is defined in the center of the return stroke of the medium channel 3, and the channel is a flue inlet 15. The top end and the bottom end of the flue inlet 15 are respectively communicated with the groove 12 at the bottom of the cover plate 11 and the flue inlet 7; this ensures that the medium flows out of the high temperature zone and also increases the amount of flue gas entering.

The working process is as follows:

after a smoke inlet at the bottom of the shell is connected with a hot smoke output end of the combustion furnace, smoke enters the groove of the cover plate from an upper air pipe and a smoke inlet flue in the middle of the shell, then the hot smoke enters an upper air pipe at the outer side of the air return pipe and finally is output from a smoke outlet. Cold medium enters the medium channel from the input port through the blower or the pump, the cold medium gradually flows to the middle return from the outermost return, in the process, the cold medium in the medium channel exchanges heat with the flue gas through the side wall of the flue gas channel, and finally the heat medium carries heat to be output from the output port. In the whole heat exchange process, cold air enters the shell from the end with low smoke temperature and is output from the end with high smoke temperature. Therefore, the output temperature of the medium can be improved, the utilization rate of heat is improved, and the heat exchange efficiency is increased.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a little and do benefit to burner heat transfer device of heat transfer of occupation space, a serial communication port, including casing (1), be equipped with flue gas passageway (2) and medium passageway (3) in casing (1), the flue gas flow direction in flue gas passageway (2) is vertical serpentine circuit, the medium flow direction in medium passageway (3) is the return circuit that spirals of horizontal direction, the smoke inlet (7) and the exhaust port (8) of flue gas passageway (2) are located the diapire and the lateral wall of casing (1) respectively, input port (4) and delivery outlet (5) of medium passageway (3) all are located the lateral wall.

2. The heat exchange device of the combustion furnace, which occupies small space and is beneficial to heat exchange, according to claim 1, characterized in that the flue gas channel (2) and the medium channel (3) are both plate-shaped structures, the tail end of the medium channel (3) is further provided with an output pipe (6), the medium channel (3) is coiled from the periphery to the center of the shell (1) in a shape of a Chinese character hui, the output pipe (6) penetrates through the side wall of the medium channel (3), one end of the output pipe (6) is communicated with the output end of the medium channel (3), and the other end of the output pipe is communicated with the output port (5) of the medium channel (3);

the smoke channel (2) is snakelike, the smoke channel (2) is inserted in the return stroke of the medium channel (3) from top to bottom, and two ends of the smoke channel (2) are respectively communicated with the smoke inlet (7) and the smoke outlet (8).

3. A furnace heat exchange device which occupies a small space and facilitates heat exchange as recited in claim 2, wherein the cross section of the shell (1) is rectangular, the medium channel (3) is plate-shaped and clip-shaped, and the medium channel (3) is provided with three return strokes.

4. A heat exchange device for a furnace which occupies a small space and facilitates heat exchange as claimed in claim 3, the flue gas channel (2) comprises two layers of upper air pipes (9), one layer of air return pipe (10) and a cover plate (11), the bottom surface of the cover plate (11) is provided with a groove (12), the two layers of upper air pipes (9) are respectively and uniformly distributed in the return strokes of the inner side and the outer side of the medium channel (3), the air return pipe (10) is positioned in the return stroke of the middle layer of the medium channel (3), the cover plate (11) covers the top of the upper air pipe (9) and the air return pipe (10) on the inner layer and hermetically communicates the upper air pipe (9) and the air return pipe (10) on the inner layer, the bottom of the air return pipe (10) is communicated with the bottom of the upper air pipe (9) on the outer layer, the upper air pipe (9) of the outer layer is communicated with the smoke outlet (8), and the bottom of the upper air pipe (9) of the inner layer is communicated with the smoke inlet (7).

5. A furnace heat exchange device which occupies small space and is beneficial to heat exchange as claimed in claim 4, characterized in that the center of the return stroke of the medium channel (3) is a flue inlet (15), and the top end and the bottom end of the flue inlet (15) are respectively communicated with the groove (12) at the bottom of the cover plate (11) and the smoke inlet (7); the medium channel is characterized in that an air blower (13) is additionally arranged at the input port (4) of the medium channel (3), and an induced draft fan (14) is additionally arranged at the smoke exhaust port (8).

6. A furnace heat exchange device which occupies small space and is beneficial to heat exchange as recited in claim 5, characterized in that the flue gas channel (2) is formed by welding metal plates, the longitudinal section of the flue gas channel (2) is rectangular, and the cross section of the medium channel (3) is rectangular.