CN216645005U - Double-spiral heat exchanger structure - Google Patents
Double-spiral heat exchanger structure Download PDFInfo
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- CN216645005U CN216645005U CN202123063552.1U CN202123063552U CN216645005U CN 216645005 U CN216645005 U CN 216645005U CN 202123063552 U CN202123063552 U CN 202123063552U CN 216645005 U CN216645005 U CN 216645005U
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- flue gas
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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Abstract
The utility model discloses a double-spiral heat exchanger structure, which comprises a heat exchange box, wherein an inner flue gas channel is arranged in the heat exchange box, an outer flue gas channel is arranged between the inner flue gas channel and a shell of the heat exchange box, and a liquid channel is arranged between the inner flue gas channel and the outer flue gas channel; one end of the inner flue gas channel is communicated with a flue gas inlet pipe, the other end of the inner flue gas channel is communicated with a flue gas steering chamber in the heat exchange box, the flue gas steering chamber is communicated with one end of the outer flue gas channel, and the other end of the outer flue gas channel is communicated with a flue gas outlet pipe; two ends of the liquid channel are respectively communicated with the liquid inlet pipe and the liquid outlet pipe; the liquid channel and the outer flue gas channel are both of rhombic section space helical structures, and the outer flue gas channel is correspondingly arranged in a helical gap on the outer side of the liquid channel. The utility model can ensure that the flue gas exchanges heat with the liquid from the inner side and the outer side, and the heat exchange efficiency is high.
Description
Technical Field
The utility model relates to the technical field of heat exchangers, in particular to a double-spiral heat exchanger structure.
Background
Industrial boiler can produce a large amount of flue gases at the working process, in order to utilize the flue gas waste heat, improves resource utilization, often can be used for heating water with the flue gas. Flue gas and water's heat exchange efficiency is not high among traditional indirect heating equipment, is difficult to fully absorb the flue gas waste heat, and heat energy in the flue gas can't obtain effective utilization, provides a double helix heat exchanger structure that heat exchange efficiency is high for this reason.
Disclosure of Invention
The purpose of the utility model is as follows: in order to overcome the defects in the prior art, the utility model provides a double-spiral heat exchanger structure, which enables flue gas to exchange heat with liquid from the inner side and the outer side and has high heat exchange efficiency.
The technical scheme is as follows: in order to achieve the purpose, the double-spiral heat exchanger structure comprises a heat exchange box, wherein an inner flue gas channel is arranged in the heat exchange box, an outer flue gas channel is arranged between the inner flue gas channel and a shell of the heat exchange box, and a liquid channel is arranged between the inner flue gas channel and the outer flue gas channel; one end of the inner flue gas channel is communicated with a flue gas inlet pipe, the other end of the inner flue gas channel is communicated with a flue gas steering chamber in the heat exchange box, the flue gas steering chamber is communicated with one end of the outer flue gas channel, and the other end of the outer flue gas channel is communicated with a flue gas outlet pipe; two ends of the liquid channel are respectively communicated with the liquid inlet pipe and the liquid outlet pipe; the liquid channel and the outer flue gas channel are both in a spatial spiral shape.
Further, the outer flue gas channel is correspondingly arranged in the spiral gap outside the liquid channel.
Further, the cross sections of the liquid channel and the outer flue gas channel are both rhombic; the diamond-shaped cross section of the liquid channel is parallel to the corresponding side of the diamond-shaped cross section of the outer flue gas channel, so that an outer heat exchange thin wall is formed between the liquid channel and the outer flue gas channel.
Furthermore, the whole inner flue gas channel is cylindrical, a spiral heat exchange groove is arranged on the inner wall of the inner flue gas channel, and the heat exchange groove is correspondingly arranged in the spiral gap on the inner side of the liquid channel.
Furthermore, the cross section of the heat exchange groove is triangular, the rhombic cross section of the liquid channel is parallel to the corresponding side on the triangular cross section of the heat exchange groove, and an inner heat exchange thin wall is formed between the liquid channel and the heat exchange groove.
Furthermore, a plurality of air holes are formed in the wall of the heat exchange groove.
Furthermore, a flue gas transition chamber is arranged in the heat exchange box, and the flue gas transition chamber is positioned at one end of the inner flue gas channel, which is far away from the flue gas turning chamber; the smoke inlet pipe penetrates through the smoke transition chamber and is communicated with the inner smoke channel, and the smoke outlet pipe is communicated with the outer smoke channel through the smoke transition chamber.
Has the advantages that: according to the double-spiral heat exchanger structure, the inner side and the outer side of the liquid channel are respectively provided with the inner smoke channel and the outer smoke channel, smoke sequentially passes through the inner smoke channel and the outer smoke channel, so that the smoke can exchange heat with liquid from the inner side and the outer side, and the heat exchange efficiency is high; the liquid channel and the outer flue gas channel are of rhombic section space spiral structures, and the inner flue gas channel is internally provided with a triangular section space spiral heat exchange groove, so that the heat exchange area can be increased, the heat exchange time can be prolonged, and the heat exchange effect can be further improved.
Drawings
FIG. 1 is a heat exchanger block diagram of the present invention;
FIG. 2 is a schematic view showing the connection between the liquid inlet tube and the liquid passage.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
The double-helix heat exchanger structure as shown in the attached drawings 1 to 2 comprises a heat exchange box 1, wherein an inner flue gas channel 2 is arranged in the heat exchange box 1, an outer flue gas channel 3 is arranged between the inner flue gas channel 2 and a shell of the heat exchange box 1, and a liquid channel 4 is arranged between the inner flue gas channel 2 and the outer flue gas channel 3. The one end and the flue gas of interior flue gas passageway 2 advance pipe 6 intercommunication, the other end and the flue gas in the heat transfer case 1 of interior flue gas passageway 2 turn to room 5 intercommunication, the flue gas turns to the one end intercommunication of room 5 and outer flue gas passageway 3, the other end and the flue gas exit tube 7 intercommunication of outer flue gas passageway 3. And two ends of the liquid channel 4 are respectively communicated with a liquid inlet pipe 8 and a liquid outlet pipe 9. The liquid channel 4 and the outer flue gas channel 3 are both in a spatial spiral shape. The flue gas can carry out the heat transfer with liquid from inside and outside both sides, and heat exchange efficiency is high, because liquid channel 4 and outer flue gas passageway 3 are the space heliciform, has increased the formation of liquid and flue gas, and heat transfer time is better, and the heat transfer is more abundant.
Outer flue gas passageway 3 corresponds the setting and is in the helical gap in the liquid passage 4 outside, makes the barrier layer between outer flue gas passageway 3 and the liquid passage 4 thinner for the heat transfer effect of the flue gas in liquid and the outer flue gas passageway 3 is better.
As shown in the attached drawing 1, the cross sections of the liquid channel 4 and the outer flue gas channel 3 are both rhombus, the rhombus section of the liquid channel 4 is parallel to the corresponding side of the rhombus section of the outer flue gas channel 3, so that an outer heat exchange thin wall 10 is formed between the liquid channel 4 and the outer flue gas channel 3, and due to the existence of the outer heat exchange thin wall 10, the effective heat exchange area between the liquid channel 4 and the outer flue gas channel 3 is larger, the barrier layer between the liquid channel 4 and the outer flue gas channel 3 is thinner and more uniform, and the heat exchange effect is good.
The inner flue gas channel 2 is integrally cylindrical, a spiral heat exchange groove 11 is formed in the inner wall of the inner flue gas channel 2, the heat exchange groove 11 is correspondingly arranged in the spiral gap in the inner side of the liquid channel 4, and the heat exchange area between the inner flue gas channel 2 and the liquid channel 4 can be increased through the heat exchange groove 11.
The cross section of the heat exchange groove 11 is triangular, and the rhombic cross section of the liquid channel 4 is parallel to the corresponding side on the triangular cross section of the heat exchange groove 11, so that an inner heat exchange thin wall 12 is formed between the liquid channel 4 and the heat exchange groove 11. The existence of the inner heat exchange thin wall 12 ensures that the heat exchange effect of the liquid channel 4 and the inner flue gas channel 2 is better.
A plurality of air holes 13 are formed in the wall of the heat exchange groove 11, and flue gas can penetrate through the air holes 13 to enter the heat exchange groove 11 when passing through the inner flue gas channel 2, so that the flow rate of the flue gas in the heat exchange groove 11 is improved, and the heat exchange effect is improved.
A flue gas transition chamber 14 is arranged in the heat exchange box 1, and the flue gas transition chamber 14 is positioned at one end of the inner flue gas channel 2, which is far away from the flue gas turning chamber 5; the flue gas inlet pipe 6 penetrates through the flue gas transition chamber 14 and is communicated with the inner flue gas channel 2, and the flue gas outlet pipe 7 is communicated with the outer flue gas channel 3 through the flue gas transition chamber 14.
Two ends of the liquid channel 4 are respectively provided with a conversion connecting pipe, and are respectively connected with a liquid inlet pipe 8 and a liquid outlet pipe 9 through the two conversion connecting pipes; the inner cross section of one end of the conversion connecting pipe is in a diamond shape, and the inner cross section of the other end of the conversion connecting pipe is in a circular shape.
In the utility model, flue gas enters from a flue gas inlet pipe 6, sequentially passes through an inner flue gas channel 2, a flue gas turning chamber 5, an outer flue gas channel 3 and a flue gas transition chamber 14, and is discharged from a flue gas outlet pipe 7; liquid enters from the liquid inlet pipe 8 and is discharged from the liquid outlet pipe 9 after passing through the liquid channel 4; when the flue gas passes through the inner flue gas channel 2 and the outer flue gas channel 3, the liquid in the liquid channel 4 is heated from the inner side and the outer side respectively, and the heat exchange effect is good. In addition, the flue gas needs to be filtered before entering the flue gas inlet pipe 6 so as not to block the inner flue gas channel 2 and the outer flue gas channel 3.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the utility model and these are intended to be within the scope of the utility model.
Claims (7)
1. A double-spiral heat exchanger structure is characterized in that: the heat exchange box comprises a heat exchange box (1), wherein an inner flue gas channel (2) is arranged in the heat exchange box (1), an outer flue gas channel (3) is arranged between the inner flue gas channel (2) and a shell of the heat exchange box (1), and a liquid channel (4) is arranged between the inner flue gas channel (2) and the outer flue gas channel (3);
one end of the inner flue gas channel (2) is communicated with a flue gas inlet pipe (6), the other end of the inner flue gas channel (2) is communicated with a flue gas steering chamber (5) in the heat exchange box (1), the flue gas steering chamber (5) is communicated with one end of the outer flue gas channel (3), and the other end of the outer flue gas channel (3) is communicated with a flue gas outlet pipe (7); two ends of the liquid channel (4) are respectively communicated with a liquid inlet pipe (8) and a liquid outlet pipe (9);
the liquid channel (4) and the outer smoke channel (3) are both in a space spiral shape.
2. A double spiral heat exchanger structure according to claim 1, wherein: the outer flue gas channel (3) is correspondingly arranged in the spiral gap at the outer side of the liquid channel (4).
3. A double spiral heat exchanger structure according to claim 2, wherein: the cross sections of the liquid channel (4) and the outer flue gas channel (3) are both rhombic; the rhombic cross section of the liquid channel (4) is parallel to the corresponding side on the rhombic cross section of the outer flue gas channel (3), so that an outer heat exchange thin wall (10) is formed between the liquid channel (4) and the outer flue gas channel (3).
4. A double spiral heat exchanger structure according to claim 3, wherein: the inner flue gas channel (2) is integrally cylindrical, a spiral heat exchange groove (11) is formed in the inner wall of the inner flue gas channel (2), and the heat exchange groove (11) is correspondingly arranged in the spiral gap in the inner side of the liquid channel (4).
5. A double spiral heat exchanger structure according to claim 4, characterized in that: the cross section of the heat exchange groove (11) is triangular, and the rhombic cross section of the liquid channel (4) is parallel to the corresponding side on the triangular cross section of the heat exchange groove (11), so that an inner heat exchange thin wall (12) is formed between the liquid channel (4) and the heat exchange groove (11).
6. A double spiral heat exchanger structure according to claim 5, characterized in that: and a plurality of air holes (13) are formed in the wall of the heat exchange groove (11).
7. A double spiral heat exchanger structure according to claim 6, wherein: a flue gas transition chamber (14) is arranged in the heat exchange box (1), and the flue gas transition chamber (14) is positioned at one end, far away from the flue gas turning chamber (5), of the inner flue gas channel (2); the flue gas inlet pipe (6) penetrates through the flue gas transition chamber (14) and is communicated with the inner flue gas channel (2), and the flue gas outlet pipe (7) is communicated with the outer flue gas channel (3) through the flue gas transition chamber (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123063552.1U CN216645005U (en) | 2021-12-08 | 2021-12-08 | Double-spiral heat exchanger structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123063552.1U CN216645005U (en) | 2021-12-08 | 2021-12-08 | Double-spiral heat exchanger structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216645005U true CN216645005U (en) | 2022-05-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123063552.1U Active CN216645005U (en) | 2021-12-08 | 2021-12-08 | Double-spiral heat exchanger structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216645005U (en) |
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2021
- 2021-12-08 CN CN202123063552.1U patent/CN216645005U/en active Active
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