CN219013658U

CN219013658U - Low flow resistance pipeline applied under limited space and large-angle bend condition

Info

Publication number: CN219013658U
Application number: CN202223364423.0U
Authority: CN
Inventors: 吴世均; 斯海宵
Original assignee: Suzhou Recodeal Interconnect System Co ltd
Current assignee: Suzhou Recodeal Interconnect System Co ltd
Priority date: 2022-12-15
Filing date: 2022-12-15
Publication date: 2023-05-12
Anticipated expiration: 2032-12-15

Abstract

The utility model discloses a low flow resistance pipeline applied under the conditions of limited space and wide angle bend, which is applied to the technical field of fluid pipelines, and the technical scheme is as follows: a low flow resistance pipeline applied under the conditions of limited space and large angle bend comprises an inlet pipeline and an outlet pipeline; the pressure drop maintaining part comprises at least two sections of key bending arcs and one section of connecting arc, wherein the two sections of key bending arcs are opposite in radian; the method has the technical effects that: the pressure drop loss of the fluid is reduced in the limited space, and the problem of backflow is avoided.

Description

Low flow resistance pipeline applied under limited space and large-angle bend condition

Technical Field

The utility model relates to the technical field of fluid pipelines, in particular to a low-flow resistance pipeline applied to a limited space and a large-angle bend.

Background

Under the background that new energy battery power conversion technology is widely applied, a liquid cooling technology is needed to cool battery pack technology so as to meet the environmental requirement of quick charge, a liquid cooling system generally comprises a circulation port with two ends of output and input serving as circulating liquid, in a smaller limited space of a battery pack, liquid needs to flow through a large-angle bend when output, fluid can collide at a bend and reflux when passing through the large-angle bend, fluid can directly collide with the bottom of a flow channel to generate great pressure loss, the pressure of the fluid in a pipe is reduced, the output equipment with the same heat dissipation effect needs to work at a higher pressure, namely the equipment can be smoothly operated under the condition that the initial pressure needs to be increased, for example, the right-angle flow channel shown in fig. 1 is a common fluid pipeline on the market at present, but the problem of insufficient flow resistance reduction capability cannot be solved in a narrow space, and the use efficiency of an integral product is directly influenced.

If the pressure drop loss of the liquid in the pipeline needs to be compensated, reducing treatment needs to be performed in the product, such as enlarging the cross section of the flow channel, but the flow channel is convoluted, the pressure loss is further increased, the limited space in the battery pack is further occupied, and meanwhile, the manufacturing difficulty is also increased.

Disclosure of Invention

The utility model aims to provide a low flow resistance pipeline applied to a limited space and a large-angle bend, which has the advantages of reducing pressure drop loss of fluid in the limited space and avoiding backflow.

The technical aim of the utility model is realized by the following technical scheme: a low flow resistance pipeline applied under the conditions of limited space and large angle bend comprises an inlet pipeline and an outlet pipeline; the pressure drop maintaining part comprises at least two sections of key bending arcs and one section of connecting arc, and the radians of the two sections of key bending arcs are opposite.

The utility model is further provided with: the inlet pipeline is connected with the pressure drop maintaining part based on a first transitional cambered surface, and the outlet pipeline is connected with the pressure drop maintaining part based on a second transitional cambered surface.

The utility model is further provided with: the internal flow cross-sectional areas of the pipes are equal everywhere.

The utility model is further provided with: the two sections of key bending arcs are a first bending arc and a second bending arc along the flowing direction of liquid, the intersection of the first bending arc, the second bending arc and the connecting arc is based on arc connection, and no sharp angle exists at the intersection.

The utility model is further provided with: the inlet pipeline and the outlet pipeline are fixedly provided with connecting parts convenient to install.

The utility model is further provided with: the outside of the pipe wall of the pipeline is fixedly provided with a waterproof layer and a solidifying layer.

The utility model is further provided with: the thickness of the waterproof layer is not higher than 0.1mm, and the thickness of the solidified layer is between 0.15 and 0.3 mm.

In summary, the utility model has the following beneficial effects:

1. the inlet pipeline and the outlet pipeline are connected through the pressure drop maintaining part, the pressure drop maintaining part comprises two sections of key bending arcs with opposite radians and one section of connecting arc, meanwhile, the cross section area of the internal circulation of the pipeline is equal everywhere, fluid can not revolve when passing through, so that the pressure loss caused by the pipeline is reduced, the two sections of key bending arcs with opposite radians are arranged, the fluid can not generate abrupt change of the flow direction when passing through, so that the fluid can flow out under low energy consumption after entering the pressure drop maintaining part, the change of the flow direction can be realized very smoothly in a limited space, the pressure loss caused by the high-speed flow or the flow speed increase of the fluid is reduced, and the problem that the fluid directly impacts the bottom of a corner to generate backflow under high speed is avoided;

2. the first bending arc, the second bending arc and the connecting arc are arranged at the intersection part based on arc connection, and no sharp angle is arranged at the intersection part, so that the fluid can not generate sharp change of the fluid direction when moving in the pressure drop maintaining part, and the stability of the fluid flow rate is improved;

3. the waterproof layer and the solidification layer are fixedly arranged outside the pipe wall of the pipe, so that the waterproof capacity of the pipe is further improved, the stability of the flow channel inside the pipe is maintained, and the influence on the flow of fluid caused by the change of the flow channel inside the pipe due to impact is avoided.

Drawings

FIG. 1 is a structural cross-sectional view of a right angle flow channel in the prior art of the present embodiment;

FIG. 2 is a schematic overall structure of the present embodiment;

FIG. 3 is a schematic view in semi-section of the overall structure of the present embodiment;

fig. 4 is an enlarged partial schematic view of the whole of the present embodiment.

Reference numerals: 1. an inlet duct; 2. an outlet conduit; 3. a pressure drop holding portion; 31. a critical bending arc; 311. a first curved arc; 312. a second curved arc; 32. a connecting arc; 4. a first transitional cambered surface; 5. a second transitional cambered surface; 6. a connecting thread; 7. a waterproof layer; 8. and (5) curing the layer.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings.

Examples:

referring to fig. 2 to 4, a low flow resistance pipeline applied under the condition of limited space and large angle bend comprises an inlet pipeline 1 and an outlet pipeline 2, wherein a pressure drop retaining part 3 is fixedly connected between the inlet pipeline 1 and the outlet pipeline 2, the inlet pipeline 1 is connected with the pressure drop retaining part 3 based on a first transitional cambered surface 4, the outlet pipeline 2 is connected with the pressure drop retaining part 3 based on a second transitional cambered surface 5, the pressure drop retaining part 3 comprises at least two sections of key bending arcs 31 and a section of connecting arc 32, the two sections of key bending arcs 31 are respectively a first bending arc 311 and a second bending arc 312 along the flowing direction of liquid, the radians of the first bending arc 311 and the second bending arc 312 are opposite, the intersecting part of the first bending arc 311, the second bending arc 312 and the connecting arc 32 is connected based on an arc, and no sharp angle is formed at the intersecting part, so that fluid can not generate sharp change of the flowing direction when fluid moves in the pressure drop retaining part 3, the flowing cross section of the pipeline is equal, and backflow of the fluid in the pipeline is avoided.

Taking a flow channel with an inlet and an outlet as right angles as an example, in a limited space, if fluid enters a straight channel with a certain flow velocity, the pressure drop loss of the scheme is greatly improved after entering a straight-through outlet after entering the pressure drop maintaining part 3. The pressure drop value of a circular flow channel with a flow section of 14mm diameter is compared with that of a right-angle flow channel with a flow section of 14mm diameter as follows:

referring to fig. 3, specifically, the arc angles of the first transition arc surface 4 and the second transition arc surface 5 are denoted as α and β, respectively, and α and β are between 8 ° -20 °, and α and β may be unequal. In this embodiment, α is 14 °, and β is 18 °.

Referring to fig. 3, specifically, the arc angles of the first bending arc 311, the second bending arc 312, and the connecting arc 32 are γ, δ, and ε, respectively, the arc angle γ of the first bending arc 311 is between 20 ° and 30 °, the arc angle δ of the second bending arc 312 is between 30 ° and 45 °, and the arc angle ε of the connecting arc 32 is between 35 ° and 50 °. In this example, γ is set to 28.5 °, δ is set to 44.5 °, and ε is set to 41.5 °.

Referring to fig. 2 and 3, specifically, the inlet pipe 1 and the outlet pipe 2 are fixedly provided with connection portions 6 which are convenient to install, the connection portions 6 can be structures such as a connection flange and a connection nut, and when the installation is performed, other pipes only need to be respectively inserted into the inlet pipe 1 and the outlet pipe 2, and then the connection portions are fixed.

Referring to fig. 2 and 4, specifically, a waterproof layer 7 and a solidified layer 8 are fixedly arranged outside the pipe wall of the pipe, the thickness of the waterproof layer 7 is not higher than 0.1mm, and the thickness of the solidified layer 8 is between 0.15 and 0.3 mm.

The use process is briefly described: fluid enters the pressure drop maintaining part 3 from the inlet pipeline 1 through the first transition cambered surface 4, the pressure drop maintaining part 3 comprises two sections of key bending arcs 31 with opposite radians and one section of connecting arc 32, meanwhile, the cross section area of the internal circulation of the pipeline is equal everywhere, the fluid can not rotate when passing through, so that the pressure loss caused by the pipeline is reduced, the abrupt change of the flow direction can not be generated, the fluid can flow out under low energy consumption after entering the pressure drop maintaining part 3, and finally stable fluid flows out of the outlet pipeline 2 through the second transition cambered surface 5.

The present embodiment is only for explanation of the present utility model and is not to be construed as limiting the present utility model, and modifications to the present embodiment which may creatively contribute to the present utility model as required may be made by those skilled in the art after reading the present specification, but are protected by patent laws within the scope of claims of the present utility model.

Claims

1. A low flow resistance pipeline applied under the conditions of limited space and large angle bend comprises an inlet pipeline (1) and an outlet pipeline (2); the device is characterized in that a pressure drop retaining part (3) is fixedly connected between the inlet pipeline (1) and the outlet pipeline (2), the pressure drop retaining part (3) comprises at least two sections of key bending arcs (31) and a section of connecting arc (32), and the radians of the two sections of key bending arcs (31) are opposite.

2. A low flow resistance duct for use in confined space and wide angle bend conditions according to claim 1, characterized in that the connection between the inlet duct (1) and the pressure drop holder (3) is based on a first transitional arc (4), and the connection between the outlet duct (2) and the pressure drop holder (3) is based on a second transitional arc (5).

3. A low flow resistance conduit for use in confined space and wide angle bend conditions as claimed in claim 1 wherein the cross sectional flow areas within the conduit are equal throughout.

4. A low flow resistance pipe for use in confined space and high angle bend conditions according to claim 1, wherein the two sections of said critical bending arcs (31) are a first bending arc (311) and a second bending arc (312) respectively along the direction of flow of the liquid, the intersection of said first bending arc (311), second bending arc (312) and said connecting arc (32) being based on a circular arc connection, the intersection being free of sharp corners.

5. A low flow resistance pipe for use in confined spaces and wide angle bends according to claim 1, characterized in that said inlet pipe (1) and said outlet pipe (2) are each fixedly provided with a connection (6) for ease of installation.

6. A low flow resistance pipe for use in confined spaces and wide angle bends according to claim 1, characterized in that the outside of the pipe wall is fixedly provided with a waterproof layer (7) and a solidified layer (8).

7. A low flow resistance duct for use in confined spaces and wide angle bends according to claim 6, characterized in that said waterproof layer (7) has a thickness not higher than 0.1mm, said cured layer (8) having a thickness between 0.15 and 0.3 mm.