A tube heat exchanger with a slope

Abstract

The utility model provides a kind of tube heat exchanger with inclination, including two outer tubes being arranged along left and right direction, the left and right ends of the outer tube are respectively equipped with sealing disc, and corresponding connecting hole is equipped on two sealing discs;Inner tube is equipped in outer tube, and the two ends of inner tube are respectively communicated with connecting hole butt joint;The left end of two outer tubes is connected by arc-shaped conduit;It further includes base, frame is vertically equipped on base, two outer tubes are fixedly connected with frame, and two outer tubes on frame are arranged with interval up and down, and the distance between two outer tubes gradually increases from left to right.It enters the inner tube in its upside after the fluid in the inner tube enters arc-shaped conduit, and then enters the inner tube in downside.The inner tube in upside is arranged as left low right high, and the inner tube in downside is arranged as left high right low, so that the resistance that fluid is smaller when passing through arc-shaped conduit compared with when entering U-shaped tube vertically.

Description

Technical Field

[0001] This utility model relates to the field of heat exchange equipment technology, specifically to a tubular heat exchanger with an incline. Background Technology

[0002] In October 2021, the applicant filed a utility model patent application with patent authorization announcement number CN 215984110 U, entitled "A Two-Pipe Heat Exchanger".

[0003] refer to Figure 1 As shown, it has an outer tube A and an inner tube B disposed inside the outer tube A. Two different fluids enter the interior of the inner tube B and the space between the outer tube A and the inner tube B, respectively, thus achieving heat exchange between the two fluids. The ends of the two parallel inner tubes B are connected by a U-shaped tube C.

[0004] However, practical experience and in-depth research have revealed that when the fluid in inner tube B flows through U-shaped tube C, U-shaped tube C generates a certain resistance to the fluid in inner tube B. This resistance leads to increased energy consumption during fluid transport, requiring additional power output from the power equipment to maintain the fluid flow rate and velocity. Utility Model Content

[0005] In view of the problems pointed out in the background art, this utility model proposes a tubular heat exchanger with an inclination to solve the above-mentioned technical problems.

[0006] The technical solution of this utility model is implemented as follows: A tube heat exchanger with an incline includes two outer tubes arranged in a left-right direction. The outer tube is provided with sealing plates at both ends, and the two sealing plates are provided with corresponding connecting holes; An inner tube is installed inside the outer tube, and the two ends of the inner tube are respectively connected to the connecting holes; The left ends of the two outer tubes are connected by an arc-shaped conduit; It also includes a base, on which a frame is vertically mounted. Two outer tubes are fixedly connected to the frame. The two outer tubes on the frame are spaced apart vertically, and the distance between the two outer tubes gradually increases from left to right.

[0007] The present invention is further configured such that the outer walls of the left ends of the two outer tubes are respectively provided with an inlet and an outlet communicating with the interior of the tubes, with the inlet located above the outlet. The outer walls of the right ends of the two outer tubes are respectively provided with a connecting hole communicating with the interior of the tubes, and the two connecting holes are connected by a connecting pipe.

[0008] The present invention is further configured such that the outer tube is provided with a plurality of inner tubes.

[0009] The present invention is further configured such that the right ends of the two outer tubes are respectively connected to an inlet connector and an outlet connector, with the inlet connector located above the outlet connector.

[0010] The present invention is further configured such that the outer tube is detachably connected to the frame by a clamp.

[0011] The present invention is further configured such that the clamp includes two semi-circular clamping rings, one of which is fixedly connected to the frame.

[0012] The present invention is further configured such that the liquid inlet and the liquid outlet are respectively connected to liquid receiving pipes.

[0013] The present invention is further configured such that the frame is a U-shaped structure with a downward opening, and the lower end of the frame is fixedly connected to the base.

[0014] The present invention is further configured such that the base is a square frame structure.

[0015] The present invention is further provided that the bottom of the base is provided with casters.

[0016] By adopting the above technical solution, the beneficial effects of this utility model are as follows: The inclined tubular heat exchanger provided by this invention has a fluid in the upper inner tube that enters the arc-shaped conduit before entering the lower inner tube. The upper inner tube is configured with a left-lower-right-higher orientation, while the lower inner tube is configured with a left-higher-right-lower orientation. This design reduces the resistance experienced by the fluid when passing through the arc-shaped conduit compared to when it enters the U-shaped tube vertically. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the existing technology.

[0019] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 1 .

[0020] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 2 .

[0021] Figure 4 This is a schematic diagram of the structure of the outer tube of this utility model.

[0022] Figure 5 This is a schematic diagram of the internal structure of the outer tube of this utility model.

[0023] Figure 6 This is an exploded view of the outer tube and inner tube of this utility model.

[0024] Figure 7 This is a product view diagram of this utility model.

[0025] The following are the labels in the attached diagram: outer tube 1, sealing plate 2, inner tube 3, conduit 4, base 5, frame 6, connecting pipe 7, inlet connector 8, outlet connector 9, clamp 10, receiving pipe 11, and caster 12. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] For reference as follows Figures 1-7 The present invention will be described as follows: Example: A tubular heat exchanger with an inclination includes two outer tubes 1 arranged in a left-right direction.

[0028] The left and right ends of the outer tube 1 are respectively sealed with sealing plates 2, and the two sealing plates 2 are provided with corresponding connection holes. This sealing connection structure can ensure that a closed space is formed inside the outer tube 1 to prevent fluid leakage during heat exchange. The connection holes are used to connect the inner tube 3 with the external pipeline.

[0029] An inner tube 3 is provided inside the outer tube 1 along the left and right direction. The two ends of the inner tube 3 are respectively connected to the connecting holes. Several inner tubes 3 are provided inside the outer tube 1. The inner tube 3 and the outer tube 1 form a double-layer tube structure. The inner tube 3 is a cold fluid channel, and the annular space between the outer tube 1 and the inner tube 3 is a hot fluid channel. This double-channel design provides the basic conditions for heat exchange between the two fluids.

[0030] It also includes a base 5, on which a frame 6 is vertically mounted, and two outer tubes 1 are fixedly connected to the frame 6. The two outer tubes 1 on the frame 6 are spaced apart vertically.

[0031] The key structural feature is that the distance between the two outer tubes 1 gradually increases from left to right. That is, the upper outer tube 1 is inclined with the left side lower than the right side, while the lower outer tube 1 is inclined with the left side higher than the right side, forming a symmetrical inclined layout along the left and right directions.

[0032] The left ends of the two outer tubes 1 are connected by an arc-shaped conduit 4.

[0033] The outer walls of the left ends of the two outer tubes 1 are respectively provided with an inlet and an outlet that communicate with their interiors. The inlet is located above the outlet. The outer walls of the right ends of the two outer tubes 1 are respectively provided with a connecting hole that communicates with their interiors. The two connecting holes are connected by a connecting pipe 7.

[0034] The flow path of the hot fluid is as follows: it enters the space between the upper outer pipe 1 and the inner pipe 3 through the inlet, enters the space between the lower outer pipe 1 and the inner pipe 3 through the connecting pipe 7, and finally flows out from the outlet. The connecting pipe 7 realizes the series connection of the hot fluid channels in the upper and lower outer pipes, ensuring that the hot fluid can exchange heat with the cold fluid in the upper and lower inner pipes in sequence.

[0035] The right ends of the two outer tubes 1 are connected to the inlet connector 8 and the outlet connector 9, respectively, with the inlet connector 8 located above the outlet connector 9.

[0036] The flow path of the cold fluid is as follows: it enters several inner tubes 3 inside the upper outer tube 1 from the inlet connector 8, flows through the inner tubes 3 and then enters the arc-shaped conduit 4 at the left end, transitions through the conduit 4 to several inner tubes 3 inside the lower outer tube 1, and finally flows out from the outlet connector 9. The two ends of the arc-shaped conduit 4 are respectively connected to the inner tubes 3 at the left end of the upper and lower outer tubes 1, forming a turning channel for the cold fluid between the upper and lower inner tubes.

[0037] In the dual-tube heat exchanger mentioned in the background technology, the parallel inner tubes are connected by U-shaped tubes. The fluid needs to make a 90° turn inside the U-shaped tube before flowing in a straight line. During the turn, the fluid will generate a large impact force on the inner wall of the U-shaped tube due to inertia, and at the same time form vortices, which will increase the flow resistance.

[0038] In this invention, the upper inner tube 3 is inclined from left to right, and the lower inner tube 3 is inclined from left to right, connected by an arc-shaped conduit 4. When cold fluid flows from the upper inner tube 3 into the conduit 4, the inclination angle of the upper inner tube 3 matches the arc curvature of the conduit 4, allowing the fluid to have a velocity component flowing obliquely before entering the conduit 4. Therefore, it does not need to make a sharp turn after entering the conduit 4, but rather transitions smoothly along the arc surface. Similarly, when the fluid enters the lower inner tube 3 from the conduit 4, the inclination direction of the lower inner tube 3 is consistent with the tangent direction of the arc at the outlet of the conduit 4, further reducing abrupt changes in flow direction. This design, combining inclination and arc, makes the change in flow velocity direction during the turning process smoother, significantly reducing eddy currents and thus lowering the frictional resistance and local resistance between the fluid and the pipe wall. Compared to a structure with vertical entry into a U-shaped tube, this effectively reduces flow resistance.

[0039] The outer tube 1 is detachably connected to the frame 6 via clamps 10.

[0040] The clamp 10 includes two semi-circular clamping rings, one of which is fixedly connected to the frame 6. The other clamping ring is connected to the fixed clamping ring via bolts or other connectors. When the two clamping rings are closed, the outer tube 1 can be clamped and fixed. This detachable connection method facilitates the installation, disassembly, and replacement of the outer tube 1. When the outer tube 1 is damaged or requires maintenance, the outer tube 1 can be quickly removed from the frame 6 by disassembling the clamp 10, reducing maintenance costs and operational difficulty.

[0041] The inlet and outlet are each connected to a receiving pipe 11. The receiving pipe 11 extends the connection distance between the inlet and outlet and the external pipeline, making it easier to adjust the pipeline route according to the actual installation scenario. At the same time, the receiving pipe 11 can adopt a standard interface design to improve compatibility with external pipelines and reduce the risk of leakage during the connection process.

[0042] The frame 6 is a U-shaped structure with an opening facing downwards, and the lower end of the frame 6 is fixedly connected to the base 5. The U-shaped frame 6 can provide stable support for the two outer tubes 1 through its two side walls.

[0043] The base 5 has a square frame structure.

[0044] The base 5 is equipped with casters 12 at its bottom. The casters 12 enable easy movement of the entire heat exchanger, facilitating the installation, maintenance, and repositioning of the equipment.

[0045] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tubular heat exchanger with an incline, comprising two outer tubes (1) arranged in a left-right direction, characterized in that: The outer tube (1) is provided with sealing plates (2) at its left and right ends respectively, and the two sealing plates (2) are provided with corresponding connecting holes; The outer tube (1) is provided with an inner tube (3), and the two ends of the inner tube (3) are respectively connected to the connecting holes; The left ends of the two outer tubes (1) are connected by an arc-shaped conduit (4); It also includes a base (5), on which a frame (6) is vertically mounted. Two outer tubes (1) are fixedly connected to the frame (6). The two outer tubes (1) on the frame (6) are spaced apart vertically, and the distance between the two outer tubes (1) gradually increases from left to right.

2. A tubular heat exchanger with an incline according to claim 1, characterized in that: The two outer tubes (1) are respectively provided with an inlet and an outlet on the outer wall of the left end, which are connected to the interior of the tubes. The inlet is located above the outlet. The two outer tubes (1) are respectively provided with a connecting hole on the outer wall of the right end, which is connected to the interior of the tubes. The two connecting holes are connected by a connecting pipe (7).

3. A tubular heat exchanger with an incline according to claim 1, characterized in that: The outer tube (1) is provided with several inner tubes (3).

4. A tubular heat exchanger with an incline according to claim 1, characterized in that: The right ends of the two outer tubes (1) are connected to the inlet connector (8) and the outlet connector (9) respectively, with the inlet connector (8) located above the outlet connector (9).

5. A tubular heat exchanger with an incline according to claim 1, characterized in that: The outer tube (1) is detachably connected to the frame (6) by clamps (10).

6. A tubular heat exchanger with an incline according to claim 5, characterized in that: The clamp (10) includes two semi-circular clamps, one of which is fixedly connected to the frame (6).

7. A tubular heat exchanger with an incline according to claim 2, characterized in that: The inlet and outlet are respectively connected to receiving pipes (11).

8. A tubular heat exchanger with an incline according to claim 1, characterized in that: The frame (6) is a U-shaped structure with an opening facing downwards, and the lower end of the frame (6) is fixedly connected to the base (5).

9. A tubular heat exchanger with an incline according to claim 1, characterized in that: The base (5) is a square frame structure.

10. A tubular heat exchanger with an incline according to claim 1, characterized in that: The base (5) is provided with casters (12) at its bottom.

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