Novel heat exchange multiplier

Abstract

The novel heat exchange multiplier comprises a shell, a supporting shaft, a supporting frame, a flow channel separation ring, a blade shaft and a spiral blade, a plurality of protrusions are arranged on the inner wall of the shell, the protrusions are in a water drop shape and are distributed in the radial direction of the inner wall, the supporting shaft is arranged in the middle of the shell, the axis of the supporting shaft coincides with the axis of the shell, and the supporting frame is arranged on the supporting shaft. The supporting frame and the flow channel separation ring are connected to the two ends of the supporting shaft in a sleeving mode and fixedly arranged in the shell, the blade shaft is connected to the middle of the supporting shaft in a sleeving mode, and the spiral blade is fixedly arranged on the blade shaft. The turbulent flow effect of fluid can be remarkably enhanced, the heat exchange coefficient of the fluid can be improved, when the fluid flows into the heat exchange multiplier, the fluid is temporarily divided by the flow channel separation ring, when three strands of fluid flow out of the flow channel separation ring, the internal spiral blade is driven to rotate around the supporting shaft, and the rotating spiral blade reacts on the fluid; the fluid collides with the spiral blade after multiple times of circulation, the turbulence effect of cold and hot fluids is enhanced, and the heat exchange efficiency of the two fluids is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a novel heat exchange enhancer. Background Art

[0002] A heat exchanger is an energy-saving device that transfers heat between two or more fluids at different temperatures. It transfers heat from a fluid with a higher temperature to a fluid with a lower temperature, so that the fluid temperature reaches the specified index of the process to meet the needs of process conditions. It is also one of the main equipment for improving energy utilization.

[0003] The most common heat exchanger now is the spiral heat exchanger. However, the existing spiral heat exchangers all have a big problem: the structure is complex, the flow rate of the fluid is not reasonably controlled, the fluid flow per unit time is insufficient, the inner wall of the heat exchanger is smooth, and the impact force is large. At the same time, the internal heat transfer and cooling effect are easily disturbed due to time. During the operation of the heat exchanger, the temperatures of the cold and hot fluids are uneven, and the heat exchange efficiency of the fluids is low. Utility Model Content

[0004] The technical problem to be solved by the embodiments of the utility model is to provide a new type of heat exchange enhancer.

[0005] In order to solve the above technical problems, an embodiment of the utility model provides a new type of heat exchange enhancer, including a shell, a support shaft, a support frame, a flow channel separation ring, a blade shaft, and a spiral blade. The support shaft is arranged in the middle of the shell, and the support shaft coincides with the axis of the shell. The support frame and the flow channel separation ring are respectively sleeved on both ends of the support shaft and fixedly arranged in the shell, the blade shaft is sleeved on the middle part of the support shaft, and the spiral blade is fixedly arranged on the blade shaft.

[0006] Wherein, the shape of the intersection of the convex surface and the inner wall of the shell conforms to a third-order Bezier curve.

[0007] The inner wall of the shell has a plurality of protrusions, the protrusions are in a water drop shape, and the protrusions are radially distributed along the inner wall.

[0008] Wherein, the diameter of the support shaft is 5 to 6 times the thickness of the spiral blade.

[0009] Wherein, a flange is arranged at one end of the shell.

[0010] Wherein, the number of the separation channels of the channel separation ring is not less than 3, and the cross-sectional areas of the separation channels of the channel separation ring are the same.

[0011] The long axis direction of the protrusion is parallel to the axis of the shell, and the aspect ratio of the protrusion is 3:2.

[0012] Implementing the embodiments of the utility model has the following beneficial effects:

[0013] The new heat exchanger amplifier can significantly enhance the turbulent effect of the fluid and improve its heat transfer coefficient. When the fluid flows into the heat exchanger amplifier, it is first briefly diverted by the flow channel separation ring. Due to the diversion effect and fluid dispersion, the fluid flow rate in each branch pipe is reduced, thereby delaying the occurrence of fluid transition and increasing the fluid flow rate per unit time. When the three streams of fluid flow out of the flow channel separation ring, they will drive the internal spiral blades to rotate around the support shaft, and the rotating spiral blades will react on the fluid. The disturbed fluid will impact the inner wall of the shell under the action of centrifugal force and collide with the teardrop-shaped protrusion. The fluid is in a state of rapid turbulence. Since the teardrop-shaped protrusion is tangent to the shell wall, part of the reflected fluid will circulate and collide with the spiral blades for multiple times, strengthening the turbulent effect of the cold and hot fluids, which is beneficial to improving the heat exchange efficiency of the two fluids. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is an exploded view of a novel heat exchange enhancer according to an embodiment of the utility model;

[0015] Figure 2 is a cross-sectional view of a novel heat exchange enhancer according to an embodiment of the utility model;

[0016] In the figure: 1-housing, 2-support shaft, 3-support frame, 4-flow channel dividing ring, 5-blade shaft, 6-spiral blade, 7-protrusion, 8-flange. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings.

[0018] like Figure 1 and 2As shown, a novel heat exchange enhancer includes a shell 1, a support shaft 2, a support frame 3, a flow channel separator ring 4, a blade shaft 5, and a spiral blade 6. A flange 8 is provided at one end of the shell 1. The flange 8 is used to connect with the cold and hot fluid inflow interface of the heat exchanger equipment. The inner wall of the shell 1 has a plurality of protrusions 7. The protrusions 7 are in a water drop shape and are radially distributed along the inner wall. The shape of the intersection of the surface of the protrusion 7 and the inner wall of the shell 1 obeys a third-order Bezier curve. The long axis direction of the protrusion 7 is parallel to the axis of the shell 1, and the aspect ratio of the protrusion 7 is 3:2. The support shaft 2 is arranged in the middle of the shell 1, and the axis of the support shaft 2 coincides with the axis of the shell 1. The support frame 3 and the flow channel separator ring 4 are respectively sleeved on both ends of the support shaft 2 and fixedly arranged in the shell 1. The number of separation channels of the flow channel separator ring 4 is not less than 3, and the cross-sectional area of ​​each separation channel of the flow channel separator ring 4 is the same. The blade shaft 5 is sleeved on the middle part of the support shaft 2 , and the spiral blade 6 is fixedly arranged on the blade shaft 5 . The diameter of the support shaft 2 is 5 to 6 times the thickness of the spiral blade 6 .

[0019] When the fluid flows into the new heat exchange enhancer, it is first briefly diverted by the flow channel separation ring 4. Due to the diversion effect and fluid dispersion, the fluid flow rate in each branch pipe is reduced, thereby delaying the occurrence of fluid transition and increasing the fluid flow rate per unit time. When the three streams of fluid flow out of the flow channel separation ring 4, the internal spiral blades 6 will be driven to rotate around the support shaft 2. The rotating spiral blades 6 react to the fluid. The disturbed fluid will impact the inner wall of the shell 1 under the action of centrifugal force and collide with the water drop-shaped protrusion 7. The fluid is in a state of rapid turbulence. Since the teardrop-shaped protrusion 7 is tangent to the wall of the shell 1, part of the reflected fluid will collide with the spiral blade 6 for multiple cycles. This process strengthens the turbulent effect of the fluid. After pretreatment by the heat exchanger amplifier, the cold and hot fluids in a rapidly turbulent state will flow into the heat exchanger equipment. The turbulent effect can improve the temperature uniformity of the fluid, which is beneficial to improving the heat exchange efficiency of the two fluids in the heat exchanger. In addition, the new heat exchanger amplifier has a simple structure and reliable performance. It does not need to be connected to an external power device and can be driven to work only by fluid flow.

[0020] Of course, the above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any modifications made according to the spirit of the main technical solution of the utility model should be included in the protection scope of the utility model.

Claims

1. A new type of heat exchanger enhancer, characterized in that: The invention comprises a shell (1), a support shaft (2), a support frame (3), a flow channel separation ring (4), a blade shaft (5) and a spiral blade (6), wherein the support shaft (2) is arranged in the middle of the shell (1), the axis of the support shaft (2) coincides with the axis of the shell (1), the support frame (3) and the flow channel separation ring (4) are respectively sleeved on the two ends of the support shaft (2) and fixedly arranged in the shell (1), the blade shaft (5) is sleeved on the middle of the support shaft (2), and the spiral blade (6) is fixedly arranged on the blade shaft (5).

2. A novel heat exchange enhancer according to claim 1, characterized in that: The inner wall of the shell (1) has a plurality of protrusions (7), the protrusions (7) are in a water drop shape, and the protrusions (7) are radially distributed along the inner wall.

3. A novel heat exchange enhancer according to claim 2, characterized in that: The shape of the intersection between the surface of the protrusion (7) and the inner wall of the shell (1) conforms to a third-order Bezier curve.

4. A novel heat exchange enhancer according to claim 1, characterized in that: The diameter of the support shaft (2) is 5 to 6 times the thickness of the spiral blade (6).

5. The novel heat exchange enhancer according to claim 1 is characterized in that: A flange (8) is provided at one end of the housing (1).

6. The novel heat exchange enhancer according to claim 1 is characterized in that: The number of separation flow channels of the flow channel separation ring (4) is not less than 3, and the cross-sectional areas of the separation flow channels of the flow channel separation ring (4) are the same.

7. The novel heat exchange enhancer according to claim 2 is characterized in that: The long axis direction of the protrusion (7) is parallel to the axis of the shell (1), and the length-to-width ratio of the protrusion (7) is 3:2.

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