阅读说明：本技术 多流道矩形翅片扁管及换热器 (Multi-runner rectangular fin flat tube and heat exchanger ) 是由 张科华 胡赟星 石印涛 陈杰 于 2019-11-05 设计创作，主要内容包括：本发明多流道矩形翅片扁管及换热器,包括：扁管本体；翅片,翅片分别设置在扁管本体的上表面和下表面。翅片分别钎焊在扁管本体的上表面和下表面。加强筋的数量为多条,多条加强筋将扁管本体分隔成多条流动空腔通道。与现有技术相比,本发明具有以下优点：在扁管本体内设置加强筋,由此直接增大换热表面积,提高换热效率,且对换热管件及换热器设备强度有较大强化,有效防止了扁管因受压而造成流通通道不足所带来的影响,提高了设备使用寿命。采用在真空钎焊炉或氮气保护连续炉中加工翅片管的工艺,在管道本体外部对称加装矩形翅片。采用O型圈加工工艺,将多流道矩形翅片扁管加工成平行管束,使其布置合理。(The invention relates to a multi-runner rectangular fin flat tube and a heat exchanger, which comprises: a flat tube body; the fins are respectively arranged on the upper surface and the lower surface of the flat pipe body. The fins are respectively brazed on the upper surface and the lower surface of the flat pipe body. The quantity of strengthening rib is many, and many strengthening ribs divide into many flowing cavity passageways with flat tub of body. Compared with the prior art, the invention has the following advantages: set up the strengthening rib in flat this internal, directly increase heat transfer surface area from this, improve heat exchange efficiency, and have great reinforcement to heat transfer pipe fitting and heat exchanger equipment intensity, effectively prevented flat pipe because of the pressurized influence that the circulation passageway is not enough brought that causes, improved equipment life. The process of processing the finned tube in a vacuum brazing furnace or a nitrogen protection continuous furnace is adopted, and rectangular fins are symmetrically and additionally arranged outside a pipeline body. The O-shaped ring processing technology is adopted to process the multi-runner rectangular fin flat tubes into parallel tube bundles, so that the arrangement is reasonable.)

1. The utility model provides a multi-flow channel rectangular fin flat tube which characterized in that includes:

a flat tube body;

the fins are arranged on the upper surface and the lower surface of the flat pipe body respectively.

2. The multi-flow channel rectangular fin flat tube as claimed in claim 1, wherein said fins are brazed to the upper and lower surfaces of said flat tube body, respectively.

3. The multi-runner rectangular fin flat tube as claimed in claim 1, wherein a reinforcing rib is provided in the flat tube body, and the reinforcing rib is provided inside the flat tube body along the length of the flat tube body.

4. The multi-runner rectangular fin flat tube as claimed in claim 3, wherein both outer sides of the flat tube body are circular arc edges.

5. The multi-runner rectangular fin flat tube as claimed in claim 3, wherein the number of the reinforcing ribs is plural, and the plural reinforcing ribs divide the flat tube body into plural flow cavity channels.

6. The utility model provides a flat tub of heat exchanger of multithread way rectangle fin which characterized in that includes:

a multi-runner rectangular fin flat tube structure;

the upper cover plate and the lower cover plate are respectively arranged on the upper surface and the lower surface of the multi-runner rectangular fin flat tube;

the left end socket and the right end socket are arranged at two ends of the multi-runner rectangular fin flat tube;

the sealing assemblies are respectively arranged between the left seal head and the right seal head and the multi-channel rectangular fin flat tube; wherein

The multi-runner rectangular fin flat tube structure is formed by stacking a plurality of multi-runner rectangular fin flat tubes; the multi-runner rectangular fin flat tube is the multi-runner rectangular fin flat tube claimed in any one of claims 1 to 5.

7. The multi-flow channel, rectangular fin and flat tube heat exchanger of claim 6, wherein the seal assembly comprises a seal unit and an O-ring disposed within the seal unit.

8. The heat exchanger as claimed in claim 7, wherein the sealing unit comprises two orifice plates disposed opposite to each other, and the O-ring is disposed between the two orifice plates.

9. The heat exchanger as claimed in claim 8, wherein plate holes are formed on the orifice plate, and the O-rings are corresponding to the plate holes.

Technical Field

The invention relates to the technical field of heat exchange, in particular to a multi-channel rectangular fin flat tube and a heat exchanger.

Background

The development and manufacturing technology of novel efficient heat exchangers has been a hotspot of research in the field of energy utilization, and is directly related to the energy utilization rate of engineering industries such as mines, petroleum, chemical engineering, metallurgy, electric power, heating power and the like.

At present, a large number of plate-fin heat exchangers are used in mine, petroleum, chemical industry, metallurgy, electric power, heating power and other engineering industries, water is used as a heat transfer medium in a fluid channel of the plate-fin heat exchanger, and heat conduction and heat convection are realized through a substrate and outside air. The heat exchanger has the advantages of simple design and manufacture, and the defects of poor heat exchange effect, large equipment volume, unreasonable structure, large occupied space, large material consumption, large investment and higher equipment cost and operation cost.

According to the heat transfer theory, in order to enhance the heat transfer of the air side, fins are usually additionally arranged outside a heat exchange tube bundle, the ribbing coefficients of the fins of a rectangular fin group are fully utilized, the heat transfer is enhanced by an expanded heat transfer surface, meanwhile, in order to improve the utilization efficiency of the fins, the fluid turbulence speed among the fins is fully optimized, a better enhanced heat transfer effect can be obtained, and fin channels are reasonably arranged on the surface of a substrate according to the field installation position and the adoption of a natural ventilation or mechanical ventilation cooling mode.

In the aspect of technical performance, the flat heat exchange tube has higher heat transfer speed, so the flat heat exchange tube is widely applied to heat dissipation of elements such as electrons and motors with larger heat productivity. However, the existing flat pipe is unreasonable in structure, limited in inner space of the pipeline, and deformed after being loaded, so that the flow resistance of the fluid in the flat pipe is large, the flat pipe is limited by insufficient circulation channels, and the adverse effect of reducing the heat exchange efficiency is caused.

Disclosure of Invention

In view of the above technical problems, an object of the present invention is to provide a multi-channel rectangular fin flat tube and a heat exchanger, which solve the above technical problems.

In order to solve the technical problem, the multi-runner rectangular fin flat tube of the invention comprises: a flat tube body; the fins are arranged on the upper surface and the lower surface of the flat pipe body respectively.

Preferably, the fins are respectively brazed on the upper surface and the lower surface of the flat tube body.

Preferably, this internal strengthening rib that is equipped with of flat tub, the strengthening rib is followed the length of flat tub of body runs through the setting and is in inside the flat tub of body.

The outer two sides of the flat pipe body are arc-shaped edges.

Preferably, the number of the reinforcing ribs is multiple, and the flat pipe body is divided into multiple flow cavity channels by the multiple reinforcing ribs.

The utility model provides a multi-flow channel rectangular fin flat tube heat exchanger, includes: a multi-runner rectangular fin flat tube structure; the upper cover plate and the lower cover plate are respectively arranged on the upper surface and the lower surface of the multi-runner rectangular fin flat tube; the left end socket and the right end socket are arranged at two ends of the multi-runner rectangular fin flat tube; the sealing assemblies are respectively arranged between the left seal head and the right seal head and the multi-channel rectangular fin flat tube; the multi-runner rectangular fin flat tube structure is formed by stacking a plurality of multi-runner rectangular fin flat tubes.

Preferably, the sealing assembly comprises a sealing unit and an O-ring disposed within the sealing unit.

Preferably, the sealing unit comprises two orifice plates which are arranged oppositely, and the O-shaped ring is arranged between the two orifice plates.

Preferably, a plate hole is formed in the orifice plate, and the O-shaped ring corresponds to the plate hole.

Compared with the prior art, the invention has the following advantages:

1) set up the strengthening rib in flat this internal, directly increase heat transfer surface area from this, improve heat exchange efficiency, and have great reinforcement to heat transfer pipe fitting and heat exchanger equipment intensity, effectively prevented flat pipe because of the pressurized influence that the circulation passageway is not enough brought that causes, improved equipment life.

2) The process of processing the finned tube in the vacuum brazing furnace is adopted, and the rectangular fins are symmetrically and additionally arranged outside the pipeline body.

3) The O-shaped ring processing technology is adopted to process the multi-runner rectangular fin flat tubes into the parallel tube bundles, so that the arrangement is flexible, and the finished products can be detached during maintenance and replacement.

Drawings

Other characteristic objects and advantages of the invention will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following figures.

FIG. 1 is a schematic structural view of a multi-runner rectangular fin flat tube according to the present invention;

fig. 2 is an exploded view of the multi-runner rectangular fin flat tube heat exchanger of the present invention.

In the figure:

1-flat tube body 2-fin 3-reinforcing rib

4-O-shaped ring 5-upper cover plate 6-lower cover plate

7-left end socket 8-right end socket 9-pore plate

10-plate hole

Detailed Description

The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention.

At present, a large number of plate-fin heat exchangers are used in mine, petroleum, chemical industry, metallurgy, electric power, heating power and other engineering industries, water is used as a heat transfer medium in a fluid channel of the plate-fin heat exchanger, and heat conduction and heat convection are realized through a substrate and outside air. The heat exchanger has the advantages of simple design and manufacture, and the defects of poor heat exchange effect, large equipment volume, unreasonable structure, large occupied space, large material consumption, large investment and higher equipment cost and operation cost.

(3) According to the heat transfer theory, in order to enhance the heat transfer of the air side, fins are usually additionally arranged outside a heat exchange tube bundle, the ribbing coefficients of the fins of a rectangular fin group are fully utilized, the heat transfer is enhanced by an expanded heat transfer surface, meanwhile, in order to improve the utilization efficiency of the fins, the fluid turbulence speed among the fins is fully optimized, a better enhanced heat transfer effect can be obtained, and fin channels are reasonably arranged on the surface of a substrate according to the field installation position and the adoption of a natural ventilation or mechanical ventilation cooling mode.

(4) In the aspect of technical performance, the flat heat exchange tube has higher heat transfer speed, so the flat heat exchange tube is widely applied to heat dissipation of elements such as electrons and motors with larger heat productivity. However, the existing flat pipe is unreasonable in structure, limited in inner space of the pipeline, and deformed after being loaded, so that the flow resistance of the fluid in the flat pipe is large, the flat pipe is limited by insufficient circulation channels, and the adverse effect of reducing the heat exchange efficiency is caused.

(5) In the manufacturing process, the traditional method utilizes a tube expansion method and a welding mode, but the invention processes a single or a few multi-runner rectangular fin flat tubes in a vacuum brazing furnace or a nitrogen protection continuous furnace, and then adopts an O-shaped ring processing process to manufacture the multi-runner rectangular fin flat tube bundle.

The heat exchange device aims to solve the defects that the existing heat exchange device is low in heat exchange efficiency, large in equipment size, unreasonable in structure, limited in strength, large in occupied space, large in material consumption, large in investment cost and high in equipment cost and operation cost.

As shown in fig. 1 and 2, the multi-runner rectangular fin flat tube of the invention is manufactured by adopting a process of processing a finned tube in a vacuum brazing furnace on the basis of a common flat tube body 1. The reinforcing ribs 3 are added inside the flat pipe body 1 and run through the whole flat pipe body 1, have the function of bearing pressure and can be used for preventing the influence caused by insufficient steam flow channels due to the fact that the flat pipe body 1 is pressed. The cavity of the flat tube body 1 is formed by arranging the reinforcing ribs 3 to divide the inner pipeline into a plurality of flowing cavity channels, so that the flowing space of fluid in the tube is directly increased, the heat exchange surface area is enhanced, and the heat exchange coefficient is directly improved. The rectangular fins 2 adopt an O-shaped ring processing technology to process the multi-runner rectangular fin flat tubes into parallel tube bundles, so that the arrangement is reasonable.

The invention relates to a multi-runner rectangular fin flat tube heat exchanger, which comprises: the multi-runner rectangular fin flat tube structure comprises a multi-runner rectangular fin flat tube structure, an upper cover plate 5, a lower cover plate 6, a left seal head 7, a right seal head 8 and a sealing assembly, wherein the multi-runner rectangular fin flat tube structure is formed by stacking a plurality of multi-runner rectangular fin flat tubes.

The sealing assembly comprises two pore plates 9 which are oppositely arranged, and the O-shaped ring 4 is arranged between the two pore plates 9. Meanwhile, a plate hole 10 is formed in the orifice plate 9, and the O-shaped ring 4 corresponds to the plate hole 10 to form sealing.

As a novel heat exchanger element for enhancing heat transfer, the multi-runner rectangular fin flat tube is compared with other common flat tube pipelines used at present:

1) the multi-runner rectangular fin flat tube is characterized in that on the basis of a common flat tube, a process of processing a single or a few finned tubes in a vacuum brazing furnace or a nitrogen protection continuous furnace is adopted, and rectangular fins are symmetrically and additionally arranged outside a pipeline;

2) the pipeline is internally provided with a reinforcing rib which runs through the whole pipeline, has the function of bearing pressure and can be used for preventing the influence caused by insufficient steam flow channel due to the fact that the pipeline is pressed;

3) the strengthening rib separates into many flowing cavity passageways with inner pipeline, has directly increased intraductal fluid flow space, when having strengthened the heat transfer, has effectively prevented that flat pipe from causing the not enough influence that brings of circulation passageway because of the pressurized.

The O-shaped ring processing technology is adopted to process the multi-runner rectangular fin flat tubes into the parallel tube bundles, so that the parallel tube bundles can be freely and flexibly arranged, and when a single heat exchanger is blocked, the single heat exchange tube can be detached and replaced.

4) The two sides of the outer part of the flat pipe adopt arc edges, so that the resistance of the windward side of the flat pipe is reduced.

The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.