CN213902054U

CN213902054U - Fin structure for heat exchanger of gas wall-mounted boiler

Info

Publication number: CN213902054U
Application number: CN202022602901.1U
Authority: CN
Inventors: 任平蓉; 江涛
Original assignee: Mianyang Womus Technology Co ltd
Current assignee: Mianyang Womus Technology Co ltd
Priority date: 2020-11-11
Filing date: 2020-11-11
Publication date: 2021-08-06
Anticipated expiration: 2030-11-11

Abstract

The utility model discloses a gas hanging stove fin structure for heat exchanger, including the fin body, be equipped with two at least heat transfer tube holes on the fin body side by side, be equipped with several bridge shape pattern windowing on the fin body between the adjacent heat transfer tube hole, several bridge shape pattern is windowed and is vertically arranged, and is equipped with the vortex arch between the adjacent bridge shape pattern windowing, top between the adjacent heat transfer tube hole still is equipped with the vortex lug on the fin body. The utility model discloses an ingenious design and reasonable arrangement vortex structure have effectively increased the surface coefficient of heat transfer of fin body, have improved heat exchange efficiency to under the condition that equal thermal efficiency is injectd, reduced whole heat exchanger's weight, reduced the cost of product.

Description

Fin structure for heat exchanger of gas wall-mounted boiler

Technical Field

The utility model belongs to the technical field of the gas hanging stove, concretely relates to fin structure for gas hanging stove heat exchanger.

Background

With the development of the market, the requirements for high performance and low cost of the gas hanging furnace heat exchanger are higher and higher, and the fin structure and area in the heat exchanger are key factors for determining the thermal efficiency of the device.

The fin structure of the existing heat exchanger is single, and the surface heat transfer coefficient is not high. Patent number "CN 210832556U" discloses a main heat exchanger fin structure of a wall-mounted gas boiler, which is provided with a plurality of bridge-shaped windows and flanged windows from bottom to top between adjacent heat exchange tube holes, and compared with the traditional fin structure, the fin structure improves the heat exchange efficiency; however, the bridge-type windows are vertically arranged and correspondingly communicated, and heat can be directly transferred upwards from the bottom bridge-type window to the top bridge-type window in the transfer process, so that the heat exchange efficiency is seriously influenced. In order to further improve the heat exchange efficiency of fin, the event provides this application.

Disclosure of Invention

The utility model aims to solve the technical problem that just to above-mentioned prior art not enough, provide a gas hanging stove fin structure for heat exchanger, it can effectively increase the heat transfer coefficient on fin surface to improve the heat exchange rate.

The utility model adopts the technical proposal that: the utility model provides a fin structure for gas hanging stove heat exchanger, includes the fin body, is equipped with two at least heat transfer tube holes on the fin body side by side, be equipped with several bridge shape pattern windowing on the fin body between the adjacent heat transfer tube hole, several bridge shape pattern windowing vertical range, and be equipped with the vortex arch between the adjacent bridge shape pattern windowing, top between the adjacent heat transfer tube hole still is equipped with the vortex lug on the fin body.

Preferably, the median lines of the plurality of bridge-style fenestrations are located on the same vertical line.

Preferably, the horizontal widths of the plurality of bridge-type fenestrations increase from bottom to top.

Preferably, the number of turbulator protrusions between adjacent bridge-style fenestrations increases as the horizontal width of the bridge-style fenestrations increases.

Preferably, the turbulence protrusions are positioned on a vertical central line of the bridge-shaped window or symmetrically arranged on the vertical central line of the bridge-shaped window.

Preferably, a turbulence protrusion is also arranged between the bridge-shaped window at the top of the fin body and the turbulence lug.

The beneficial effects of the utility model reside in that:

(1) by arranging the profiling structures with the plurality of bridge-shaped windowing tearing openings and the plurality of turbulence protrusions, the contact time of heat and the fins is longer, the surface heat transfer coefficient of the fin body is effectively increased, and the heat transfer efficiency of the fin body is improved;

(2) by additionally arranging a plurality of bridge-shaped windows, the weight of the fin body is reduced, and the manufacturing cost is greatly saved.

The utility model discloses an ingenious design and reasonable arrangement vortex structure have effectively increased the surface coefficient of heat transfer of fin body, have improved heat exchange efficiency to under the condition that equal thermal efficiency is injectd, reduced whole heat exchanger's weight, reduced the cost of product.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a front view of embodiment 1 of the present invention;

fig. 3 is a front view of embodiment 2 of the present invention.

In the figure: 1. a fin body; 2. a heat exchange tube hole; 3. windowing in a bridge style; 4. a turbulent flow bulge; 5. a turbulence projection.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Example 1

As shown in fig. 1 and 2, the fin structure for the heat exchanger of the gas wall-hanging furnace provided by this embodiment comprises a fin body 1, at least two heat exchange tube holes 2 are arranged on the fin body 1 side by side, a plurality of bridge-shaped windows 3 are arranged between the adjacent heat exchange tube holes 2 on the fin body 1, the plurality of bridge-shaped windows 3 are arranged vertically, and the vertical central lines of the plurality of bridge-shaped windows 3 are located on the same vertical line, in this embodiment, three bridge-shaped windows 3 are provided, the horizontal widths of the three bridge-shaped windows 3 are sequentially increased from bottom to top, a spoiler protrusion 4 is arranged between the adjacent bridge-shaped windows 3, a spoiler protrusion 4 is arranged between the bottom bridge-shaped window 3 and the middle bridge-shaped window 3, the spoiler protrusion 4 is located on the vertical central line of the bridge-shaped windows 3, two spoiler protrusions 4 are arranged between the middle bridge-shaped window 3 and the top bridge-shaped window 3, the two turbulence protrusions 4 are located on two sides of a vertical central line of the bridge-shaped window 3 and are symmetrical with the vertical central line of the bridge-shaped window 3, turbulence protrusions 5 are further arranged on the tops of the fin bodies 1 between the adjacent heat exchange tube holes 2, and the turbulence protrusions 4 are further arranged between the turbulence protrusions 5 and the bridge-shaped window 3 on the tops.

During the use, high temperature gas flue gas flows through between two

adjacent fin bodies

1, 3 windows that the bridge shape style was windowed play a vortex effect to the high temperature flue gas, simultaneously after 3 vortex flows through the 3 windows that the bridge shape style was windowed in the high temperature flue gas and flow through from the window department that the bridge shape style was windowed 3, the cooperation setting was protruding 4 at the vortex between 3 windows that the bridge shape style was windowed this moment, vortex once more to the high temperature flue gas, greatly increased the time that the high temperature flue gas flowed through on fin body 1 surface like this, the surface heat transfer coefficient of fin body 1 has been increased promptly, the efficiency of conducting heat has been improved.

The turbulence protrusions 4 may be in the shape of one or more of a sphere, a hemisphere, a square, a rectangle, and a sector, but are not limited to these shapes.

In this embodiment the longitudinal section of the turbulence lug 5 is fan-shaped, and the minor arc side of the turbulence protrusion is located at the top of the fin body.

Example 2

As shown in fig. 3, this embodiment is substantially the same as embodiment 1, only the number of the bridge-shaped windows 3 is changed, the bridge-shaped windows 3 are vertically arranged, the vertical central lines of the bridge-shaped windows 3 are parallel to each other, the spoiler protrusions 4 between adjacent bridge-shaped windows 3 are located on the vertical central line of the bridge-shaped window 3 adjacent to the bottom thereof, and if there are a plurality of spoiler protrusions 4 between adjacent bridge-shaped windows 3, the spoiler protrusions 4 are located on both sides of the vertical central line of the bridge-shaped window 3 adjacent to the bottom thereof and are symmetrically arranged.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any modification and replacement based on the technical solution and inventive concept provided by the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a gas hanging stove fin structure for heat exchanger, includes fin body (1), is equipped with two at least heat exchange tube holes (2) side by side on fin body (1), its characterized in that: be equipped with several bridge shape pattern windowing (3) between adjacent heat transfer tube hole (2) on fin body (1), several bridge shape pattern windowing (3) is vertical arranges, and is equipped with vortex arch (4) between adjacent bridge shape pattern windowing (3), top between adjacent heat transfer tube hole (2) still is equipped with vortex lug (5) on fin body (1).

2. The fin structure for the heat exchanger of the gas wall-hanging stove according to claim 1, characterized in that: the central lines of the plurality of bridge-shaped windows (3) are positioned on the same vertical line.

3. The fin structure for the heat exchanger of the gas wall-hanging stove according to claim 2, characterized in that: the horizontal widths of the plurality of bridge-shaped windows (3) are sequentially increased from bottom to top.

4. The fin structure for the heat exchanger of the gas wall-hanging stove according to claim 3, characterized in that: the number of the turbulence protrusions (4) between adjacent bridge-shaped windows (3) is increased along with the increase of the horizontal width of the bridge-shaped windows (3).

5. The fin structure for the heat exchanger of the gas wall-hanging stove according to claim 4, characterized in that: the turbulence protrusions (4) are positioned on the vertical central line of the bridge-shaped window (3) or symmetrically arranged on the vertical central line of the bridge-shaped window (3).

6. The fin structure for the heat exchanger of the gas wall-hanging stove according to any one of claims 2 to 5, characterized in that: and a turbulence protrusion (4) is also arranged between the bridge-shaped window (3) at the top of the fin body (1) and the turbulence lug (5).