CN216694623U - High-efficiency heat exchange tube - Google Patents

Abstract

The utility model discloses a high-efficiency heat exchange tube, which comprises a tube body which is spirally arranged, wherein the vertical section of the tube body is of a flat tube structure, at least two rows of convex parts which are arranged at intervals along the extension axis of the tube body are arranged on the upper side surface and/or the lower side surface of the tube body, and the convex parts in adjacent rows on the same side surface are arranged in a staggered manner. The smoke-gas heat exchanger is simple and reasonable in structure, the supporting effect can be achieved through the protruding portions on the side faces, so that the space between the opposite side faces is guaranteed, the flowing gap of smoke gas is guaranteed, meanwhile, the protruding portions arranged in a staggered mode can achieve a turbulence effect on the smoke gas flowing through the gap, and therefore the heat exchange effect between the smoke gas and the pipe body is improved.

Description

High-efficiency heat exchange tube

Technical Field

The utility model relates to the technical field of heat exchange equipment, in particular to a high-efficiency heat exchange tube.

Background

The traditional wall-mounted gas boiler is generally provided with corresponding devices such as a combustion chamber, a heat exchanger and the like, the heat exchanger is used for absorbing energy generated by combustion gas and transferring the energy to cold water flowing through the heat exchanger from a water inlet pipe, the temperature of the cold water rises after heat exchange, and hot water is discharged from a water outlet pipe, so that the function of heating water flow is realized; the existing heat exchanger comprises a coil heat exchanger, the coil heat exchanger comprises a shell, a burner and heat exchange tubes which are arranged in the shell and spirally coiled, the burner is arranged in an inner cavity formed by enclosing the heat exchange tubes and burns to generate a large amount of high-temperature flue gas, and spiral intervals among the spiral heat exchange tubes form flowing gaps through which the high-temperature flue gas flows out, so that the heat exchange between the high-temperature flue gas and the heat exchange tubes is realized; however, the spiral heat exchange tubes in the existing coil type heat exchanger are difficult to maintain a larger spiral distance through the strength of the spiral heat exchange tubes, the spiral distance is generally maintained by the limit of the shell or other parts, the structure is complex, and meanwhile, high-temperature flue gas directly flows through the spiral distance, so that the heat exchange efficiency is lower, and an improved space is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provides a high-efficiency heat exchange tube, wherein the protruding parts on the side surfaces can play a supporting effect to ensure the distance between the opposite side surfaces, so that the flowing gap of flue gas is ensured, and meanwhile, the protruding parts arranged in a staggered mode can play a turbulence effect on the flue gas flowing through the gap, so that the heat exchange effect between the flue gas and the tube body is improved.

In order to achieve the purpose, the utility model provides a high-efficiency heat exchange tube, which comprises a tube body which is spirally arranged, wherein the vertical section of the tube body is in a flat tube structure, at least two rows of protrusions which are arranged at intervals along the extension axis of the tube body are arranged on the upper side surface and/or the lower side surface of the tube body, and the protrusions in adjacent rows on the same side surface are arranged in a staggered manner.

Further setting as follows: and the upper side face and the lower side face of the pipe body are both provided with a convex part.

Further setting the following steps: the protruding parts on the two opposite side surfaces of the pipe body are at least partially arranged correspondingly.

Further setting the following steps: the projections on the tube body are evenly spaced along the extension axis.

Further setting the following steps: the protruding part on the pipe body is integrally formed through punching.

Compared with the prior art, the utility model has the following advantages:

1. the bulge part can play a supporting effect in the flow gap, so that the space of the flow gap is ensured, and the smooth flow of the smoke is ensured;

2. the adjacent rows of the convex parts on the opposite side surfaces forming the flow gaps are arranged in a staggered manner, so that the turbulent flow effect on the smoke flowing through the flow gaps can be realized, and the heat exchange effect is improved;

3. the bulge forms the pit structure on the body inner wall, and this pit structure can play vortex and increase heat transfer area's effect to the medium of intraductal flow to improve heat transfer effect.

Drawings

FIG. 1 is a schematic perspective view of a high efficiency heat exchange tube of the present invention;

fig. 2 is a schematic vertical cross-section of a heat exchange tube.

The following reference numerals are marked thereon in conjunction with the accompanying drawings:

1. a pipe body; 11. an upper side surface; 12. a lower side surface; 13. a flow gap; 2. a boss portion; 21. a first row of bosses; 22. a second row of bosses.

Detailed Description

An embodiment of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the embodiment.

As shown in fig. 1 and 2, the high-efficiency heat exchange tube of the utility model comprises a tube body 1 which is spirally arranged, wherein two ends of the tube body 1 are respectively an inlet end and an outlet end, and a first heat exchange medium (water, oil and the like) flows in from the inlet end and flows out from the outlet end; the inner space formed by enclosing the pipe body 1 forms a combustion chamber for placing a burner, the burner burns in the combustion chamber to generate high-temperature flue gas (second heat exchange medium) and flows from the inside to the outside through spiral intervals (flow gaps 13) between the pipe bodies 1, and heat exchange between the first heat exchange medium and the second heat exchange medium is realized in the process.

In above-mentioned scheme, body 1 is the structure by the punching press of stainless steel material or compression molding, and this body 1's vertical cross section is flat tube structure, and the upper and lower lateral surface 12 of body 1 vertical cross section is the circular arc structure for the junction at the horizontal both ends of plane and upper and lower lateral surface 12, so can effectually provide the bearing capacity of body 1 inner chamber, improves the heat transfer effect between first heat transfer medium and the second heat transfer medium simultaneously.

In the above solution, preferably, at least two rows of protrusions 2 are arranged on the upper side 11 and/or the lower side 12 of the tubular body 1 at intervals along the extending axis of the tubular body 1, adjacent rows of protrusions 2 on the same side are arranged in a staggered manner, and the protrusions 2 are formed on the tubular body 1 by stamping, for example, by water swelling under a specific mold; the flow gap 13 is internally provided with a raised structure, so that the flow gap 13 can be supported to ensure the indirection of the flow gap 13, and the staggered raised structure can play a role in disturbing flow and increasing the contact area of the flue gas, thereby achieving the purpose of improving the heat exchange effect between the flue gas and the first heat exchange medium; the bulge 2 shows as the pit structure at 1 inner wall of body, and the pit structure can play vortex and increase area of contact's effect to the first heat transfer medium that flows in the body 1 to reach the purpose that improves the heat transfer effect between first heat transfer medium and the flue gas.

In this embodiment, as shown in fig. 1 and fig. 2, specifically, the upper side 11 and the lower side 12 of the tube body 1 are both provided with two rows of the protrusions 2, namely a first row of the protrusions 21 and a second row of the protrusions 22, and the second row of the protrusions 22 is located between two adjacent first rows of the protrusions 21; preferably, the first row of projections 21 and the second row of projections 22 are arranged at regular intervals along the extension axis of the tubular body 1, while the projections 2 on two opposite sides constituting the flow gap 13 are at least partially arranged correspondingly, so as to effectively increase the distance between the flow gaps 13.

Compared with the prior art, the utility model has simple and reasonable structure, and the bulge part can play a supporting effect in the flow gap, thereby ensuring the space of the flow gap and ensuring the smooth flow of the smoke; the adjacent rows of the convex parts on the opposite side surfaces forming the flowing gaps are arranged in a staggered manner, so that the turbulent flow effect on the smoke flowing through the flowing gaps can be realized, and the heat exchange effect is improved; the bulge forms the pit structure on the body inner wall, and this pit structure can play vortex and increase heat transfer area's effect to the medium of intraductal flow to improve heat transfer effect.

The above disclosure is only an embodiment of the present invention, but the present invention is not limited thereto, and any variations that can be considered by those skilled in the art are within the scope of the present invention.

Claims (5)

1. The utility model provides a high-efficient heat exchange pipe, its characterized in that, is including the body that is the heliciform and arranges, and the vertical cross-section of this body is flat tube structure, be provided with two rows at least along the bellying of body extension axis interval arrangement on the upper flank and/or the downside of body, adjacent row on same side the bellying is dislocation arrangement.

2. A high efficiency heat exchange tube as recited in claim 1 wherein the tube body is provided with projections on both upper and lower sides thereof.

3. A high efficiency heat exchange tube as recited in claim 2 wherein the projections on opposite sides of said tube body are at least partially disposed in corresponding relationship.

4. A high efficiency heat exchange tube as claimed in claim 1 or 2 wherein the projections on the tube body are evenly spaced along the axis of elongation.

5. A high efficiency heat exchange tube as recited in claim 1 wherein the projections on the tube body are integrally formed by stamping.

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