CN216011297U

CN216011297U - Heat exchange pipe with good turbulent flow effect

Info

Publication number: CN216011297U
Application number: CN202122727738.6U
Authority: CN
Inventors: 孟继安; 戴丁军; 卓宏强; 孙旭光
Original assignee: Ningbo Hrale Plate Heat Exchanger Co ltd
Current assignee: Ningbo Hrale Plate Heat Exchanger Co ltd
Priority date: 2021-11-08
Filing date: 2021-11-08
Publication date: 2022-03-11
Anticipated expiration: 2031-11-08

Abstract

The utility model discloses a heat exchange tube with good turbulent flow effect, which comprises a tube body which is spirally arranged, wherein a flow gap is arranged between the tube body and the adjacent layers, and the vertical section of the tube body is a flat tube structure; the pipe body is provided with a plurality of groups of flow guide bulges arranged at intervals along the extension axis of the pipe body in the corresponding flow gap, each group of flow guide bulges defines a flow guide channel for guiding the flow of fluid, and each flow guide channel comprises a gradually reducing section with gradually reduced channel width and a gradually increasing section with gradually increased channel width, wherein the gradually reducing section and the gradually increasing section are alternately arranged. The utility model has the advantages of simple and reasonable structure, the water conservancy diversion arch can play the effect of supporting flow clearance in order to guarantee fluidic smooth and easy flow, and the water conservancy diversion passageway that has convergent section and gradual section that the water conservancy diversion arch was injectd simultaneously can draw the fluid to form many vertical whirlpools in order to show improvement whole heat transfer effect.

Description

Heat exchange pipe with good turbulent flow effect

Technical Field

The utility model relates to a heat exchange technology field, in particular to effectual hot exchange pipe of vortex.

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 relates to an overcome defect among the above-mentioned prior art, provide an effectual hot exchange pipe of vortex, the water conservancy diversion arch can play the effect of supporting the clearance of flowing in order to guarantee fluidic smooth and easy flow, and the water conservancy diversion passageway that has convergent section and gradual section that the water conservancy diversion arch was injectd simultaneously can draw the fluid to form many vertical whirlpools in order to show improvement whole heat transfer effect.

In order to achieve the purpose, the utility model provides a heat exchange tube with good turbulent flow effect, which comprises a tube body which is spirally arranged, wherein a flow gap is arranged between the tube body and the adjacent layers, and the vertical section of the tube body is of a flat tube structure;

the pipe body is provided with a plurality of groups of flow guide bulges arranged at intervals along the extension axis of the pipe body in the corresponding flow gap, each group of flow guide bulges defines a flow guide channel for guiding the flow of fluid, and each flow guide channel comprises a gradually reducing section with gradually reduced channel width and a gradually increasing section with gradually increased channel width, wherein the gradually reducing section and the gradually increasing section are alternately arranged.

Further setting the following steps: each group of the flow guide protrusions comprise first protrusion structures and second protrusion structures which are alternately arranged along the fluid flowing direction, the first protrusion structures are arranged in an eight shape to limit increasing sections of the flow guide channel, and the second protrusion structures are gradually reducing sections of the flow guide channel, which are obtained after the first protrusion structures horizontally rotate 180 degrees.

Further setting the following steps: the flow guide bulge is formed by a bulge structure on the pipe wall on one side of the flow gap.

Further setting the following steps: the flow guide bulge is formed by matching bulge structures on the pipe walls on two sides of the flow gap.

Further setting the following steps: and the pipe walls at the two sides of the flow gap are correspondingly provided with convex structures which are the same as the flow guide convex structures.

Further setting the following steps: and the pipe walls at the two sides of the flow gap are respectively provided with a part of the flow guide protruding structure.

Compared with the prior art, the utility model has simple and reasonable structure, and the flow guide bulge structure in the flow gap can play the effect of effectively supporting the flow gap so as to ensure the space of the flow gap and avoid the blockage; meanwhile, the protruding structure formed on the outer wall of the tube body can form a flow guide channel to guide the smoke to flow and form multiple longitudinal vortexes so as to improve the turbulence effect of the smoke, and the recessed structure formed on the inner wall of the tube body can enable fluid flowing in the tube body to form multiple longitudinal vortexes, so that the heat exchange effect and efficiency of the heat exchange tube are integrally improved.

Drawings

FIG. 1 is a schematic perspective view of a heat exchange tube with good turbulent flow effect;

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:

100. a pipe body; 1. a flow guide bulge; 11. a first bump structure; 12. a second bump structure; 2. a flow guide channel; 21. a tapered section; 22. a gradual increase section; 3. a flow gap.

Detailed Description

In the following, an embodiment of the present invention will be described in detail with reference to the drawings, but it should be understood that the scope of the present invention is not limited by the embodiment.

The utility model relates to an effectual hot exchange pipe of vortex is as shown in fig. 1 and fig. 2, including being spiral arrangement's body 100, this body 100's vertical cross section is formed with flow clearance 3 for the cooperation between flat tube structure and the adjacent layer body 100, and the inside fluid medium that supplies of body 100 flows, and body 100 spiral encloses the inside of closing the formation and produces the high temperature flue gas through the combustor burning, and the high temperature flue gas is through flow clearance 3 outwards flow in order to realize carrying out the heat transfer with the flow medium in the body 100 by inside.

Specifically, as shown in fig. 1, a plurality of flow guide protrusions 1 arranged at intervals along the extension axis of each group of pipe bodies 100 are arranged in the corresponding flow gap 3 of the pipe body 100, each group of flow guide protrusions 1 correspondingly defines a flow guide channel 2 for guiding high-temperature flue gas to flow out from the inside, each flow guide channel 2 comprises a tapered section 21 with gradually reduced channel width and a gradually increased section 22 with gradually increased channel width, and the tapered section 21 and the gradually increased section 22 are alternately arranged; so protruding 1 of water conservancy diversion can effectually play the effect of supporting flowing clearance 3 in order to guarantee the interval of flowing clearance 3, guarantee the smooth and easy flow of high temperature flue gas, avoid taking place to block up, water conservancy diversion passageway 2 can force the inside high temperature flue gas of guide to flow out and can guide high temperature flue gas to form many vertical whirlpools through the convergent section 21 of alternative arrangement and the effect of gradual increase section 22 simultaneously along water conservancy diversion passageway 2, flue gas vortex effect has effectively been improved to hot exchange pipe's whole heat transfer effect has been improved.

In the above scheme, each set of flow guide protrusions 1 comprises a first protrusion structure 11 and a second protrusion structure 12 alternately arranged along the flow direction of the high-temperature flue gas, the first protrusion structure 11 is an increasing section 22 arranged in an 'eight' shape to define the flow guide channel 2, and the second protrusion structure 12 is made by horizontally rotating the first protrusion structure 11 by 180 ° to define a decreasing section 21 of the flow guide channel 2; each group of flow guide protrusions 1 at least comprises a first protrusion structure 11 and a second protrusion structure 12, the first protrusion structure 11 and the second protrusion structure 12 are formed by pressing, and the flow guide protrusions 1 can guide corresponding protrusions located between flows.

In some embodiments, the flow guiding protrusion 1 is defined by a protrusion structure on the wall of one side of the flow gap 3, and the shape, structure and height of the protrusion structure are identical to those of the flow guiding protrusion 1, that is, the protrusion structure on the wall of the side pipe is the flow guiding protrusion 1.

In some specific embodiments, the flow guide protrusion 1 is formed by matching protrusion structures on the pipe walls on two sides of the flow gap 3; in the first scheme, the upper pipe wall and the lower pipe wall of the flow gap 3 are correspondingly provided with a bulge structure which has the same shape and structure as the flow guide bulge 1 and the bulge height lower than the flow guide bulge 1, and the bulge structures on the upper pipe wall and the lower pipe wall are formed in a matched mode; in the second scheme, the upper end wall and the lower pipe wall of the flow gap 3 are respectively provided with a part of the protruding structures of the flow guide protrusion 1, so that the protruding structures on the two side walls are matched to form the complete flow guide protrusion 1, for example, the upper pipe wall is provided with a complete first protruding structure 11, the lower pipe wall is provided with a complete second protruding structure 12, or the upper pipe wall is provided with a half of the first protruding structure 11 and a half of the second protruding structure 12, and the lower pipe wall is correspondingly provided with the other half of the first protruding structure 11 and the other half of the second protruding structure 12.

The above disclosure is only for the embodiment of the present invention, however, the present invention is not limited thereto, and any changes that can be considered by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A heat exchange tube with good turbulent flow effect comprises tube bodies which are spirally arranged, wherein flow gaps are formed between the tube bodies and the adjacent layers, and the vertical section of each tube body is of a flat tube structure;

the flow guide device is characterized in that a plurality of groups of flow guide bulges are arranged in the flow gap corresponding to the pipe body at intervals along the extension axis of the pipe body, each group of flow guide bulges defines a flow guide channel for guiding fluid to flow, and each flow guide channel comprises a gradually reducing section with gradually reduced channel width and a gradually increasing section with gradually increased channel width, wherein the gradually reducing section and the gradually increasing section are alternately arranged.

2. The heat exchange tube with good turbulent flow effect as claimed in claim 1, wherein each set of the flow guiding protrusions comprises a first protrusion structure and a second protrusion structure alternately arranged along the fluid flowing direction, the first protrusion structure is in an "eight" shape arrangement to define a gradually increasing section of the flow guiding channel, and the second protrusion structure is a gradually decreasing section of the first protrusion structure which is horizontally rotated 180 ° to define the flow guiding channel.

3. The heat exchange tube with good turbulent flow effect as claimed in claim 2, wherein the flow guiding protrusion is formed by a protrusion structure on the tube wall on one side of the flow gap.

4. The heat exchange tube with good turbulent flow effect as claimed in claim 2, wherein the flow guiding protrusion is formed by matching protrusion structures on the tube walls at both sides of the flow gap.

5. The heat exchange tube with good turbulent flow effect as claimed in claim 4, wherein the tube walls at two sides of the flow gap are correspondingly provided with the same protrusion structures as the flow guiding protrusion structures.

6. The heat exchange tube with good turbulent flow effect as claimed in claim 4, wherein the tube walls on both sides of the flow gap have a part of the flow guiding protrusion structure.