阅读说明：本技术 一种强化换热器 (Reinforced heat exchanger ) 是由 徐永兴 于北乐 朱光亮 吴信莲 于 2021-07-26 设计创作，主要内容包括：本发明涉及强化换热技术领域,具体涉及一种强化换热器,包括换热器本体、转轴和扰流子,所述换热器本体具有一腔体供传热介质流动,所述转轴可转动的布置在所述换热器本体的腔体内,所述扰流子设置在所述转轴的轴身上,且在转轴转动时,所述扰流子的悬端切削所述腔体临近换热器本体内壁处的传热介质；本发明提供的强化换热器,通过在换热器本体的腔体内设置可转动的转轴,以及在转轴上设置扰流子,当转轴转动时,带动扰流子在腔体内转动,对传热介质进行搅动,该动态的扰流子可主动的切削临近换热器本体内壁处的传热介质,从而实现对传热过程中热阻的降低,提高传热系数K,进而实现换热效率的提高。(The invention relates to the technical field of heat exchange enhancement, in particular to a heat exchanger enhancement, which comprises a heat exchanger body, a rotating shaft and a turbolator, wherein the heat exchanger body is provided with a cavity for heat transfer media to flow; according to the reinforced heat exchanger provided by the invention, the rotatable rotating shaft is arranged in the cavity of the heat exchanger body, the turbolator is arranged on the rotating shaft, when the rotating shaft rotates, the turbolator is driven to rotate in the cavity to stir a heat transfer medium, and the dynamic turbolator can actively cut the heat transfer medium close to the inner wall of the heat exchanger body, so that the reduction of thermal resistance in the heat transfer process is realized, the heat transfer coefficient K is improved, and the improvement of the heat exchange efficiency is further realized.)

1. A reinforced heat exchanger, comprising:

the heat exchanger comprises a heat exchanger body (10) and a heat exchange device, wherein the heat exchanger body is provided with a cavity (11) for flowing a heat transfer medium;

a rotating shaft (20) rotatably arranged in the cavity (11) of the heat exchanger body (10); and the number of the first and second groups,

the turbolator (30) is arranged on the shaft body of the rotating shaft (20), and when the rotating shaft (20) rotates, the suspension end of the turbolator (30) cuts the heat transfer medium at the position, close to the inner wall of the heat exchanger body (10), of the cavity (11).

2. The enhanced heat exchanger of claim 1, further comprising:

the transmission system (40), the transmission system (40) is in transmission connection with one end of the rotating shaft (20);

and the power output end of the driving element (50) is in transmission connection with the transmission system (40) and is used for providing power for rotating the rotating shaft (20).

3. The enhanced heat exchanger of claim 1 or 2, wherein the heat transfer medium is a mixture of metal particles and a heat transfer liquid.

4. The enhanced heat exchanger of claim 3, wherein the metal particles are made of a material selected from at least one of ferrous metal particles, aluminum metal particles, copper metal particles, or silver metal particles.

Technical Field

The invention relates to the technical field of heat exchange enhancement, in particular to a heat exchanger enhancement.

Background

The heat transfer enhancement technology is known as the second generation heat transfer technology, the heat transfer performance of the heat exchanger can be obviously improved, in practical application, the heat transfer enhancement technology is one of main ways for realizing heat transfer and energy saving, and the main content of heat transfer enhancement is to adopt a heat transfer enhancement element and a support structure for changing a shell pass so as to improve the heat transfer efficiency and realize the optimization of the heat transfer process.

According to the principle of heat transfer science, the heat transfer quantity Q of the heat exchanger can be calculated by using a formula Q ═ KA Δ t, wherein K is a heat transfer coefficient, A is a heat exchange area, and Δ t is a heat transfer temperature difference. Therefore, the heat exchanger has three ways to enhance heat transfer: (1) the heat exchange area is increased; the heat exchange area is increased by singly enlarging the volume of the equipment or increasing the heat exchange quantity by increasing the number of the heat exchange equipment, so that the equipment investment is not increased, the occupied area of the equipment is large, and the enhancement effect on the heat transfer effect is not obvious. At present, the widely and reasonably used mode is that materials such as finned tubes, corrugated tubes, plate fin heat transfer surfaces and the like with larger heat transfer area per unit volume are used on a heat exchanger in a large quantity. (2) The heat transfer temperature difference is increased; the method is one of the commonly used measures for enhancing the heat exchange effect of the heat exchanger, in the using process of the heat exchanger, the pressure of steam in a radiant heating plate pipe is improved, the hot water temperature of hot water heating is improved, the cooling water of a condenser is used for replacing tap water with deep well water with lower temperature, the temperature of the cooling water in an air cooler is reduced, and the like, and the heat transfer temperature difference delta t of the heat exchanger can be directly increased; (3) increasing the heat transfer coefficient K; the mode is the most positive measure for enhancing the heat transfer effect of the heat exchanger, the heat transfer coefficient K of the heat exchanger is actually determined by the total thermal resistance in the heat transfer process, and the larger the total thermal resistance in the heat transfer process of the heat exchanger is, the lower the heat transfer coefficient K is; and the lower the heat transfer coefficient K, the poorer the heat exchange effect. The more technologies used at present for improving the heat transfer coefficient K are as follows: a turbolator is added into a heat exchange tube of the heat exchanger, so that the thermal resistance of the heat exchanger in the heat transfer process is greatly reduced under the action of the turbolator, and the effect of improving the heat transfer coefficient K is finally achieved.

However, in the existing well-known enhanced heat exchanger, the turbolator is mainly arranged in a fixed turbolator mode, a gas film is easy to hide in the side face of the turbolator, and the fixed turbolator causes the problem that some heat transfer media flow unevenly, so that the effect of enhancing heat exchange is limited; in addition, the inventors of the present application have found that the heat transfer medium used in the heat exchangers at present is of a single composition, resulting in inefficient heat transfer.

Disclosure of Invention

The present invention is directed to overcome the above-mentioned problems in the prior art, and provides an enhanced heat exchanger, which can further improve the effect of enhanced heat exchange.

In order to achieve the purpose, the invention adopts the following technical scheme:

a reinforced heat exchanger comprising:

the heat exchanger body is provided with a cavity for the flow of a heat transfer medium;

the rotating shaft is rotatably arranged in the cavity of the heat exchanger body; and the number of the first and second groups,

and the turbolator is arranged on the shaft body of the rotating shaft, and when the rotating shaft rotates, the suspension end of the turbolator cuts the heat transfer medium at the position, close to the inner wall of the heat exchanger body, of the cavity.

In a further technical solution, the intensified heat exchanger further includes:

the transmission system is in transmission connection with one end of the rotating shaft;

and the power output end of the driving element is in transmission connection with the transmission system and is used for providing power for rotating the rotating shaft.

In a further technical scheme, the heat transfer medium is a mixture of metal particles and heat transfer liquid.

In a further technical scheme, the material of the metal particles is selected from at least one of ferrous metal particles, aluminum metal particles, copper metal particles or silver metal particles.

Compared with the prior art, the invention has the following technical effects:

according to the reinforced heat exchanger provided by the invention, the rotatable rotating shaft is arranged in the cavity of the heat exchanger body, the turbolator is arranged on the rotating shaft, when the rotating shaft rotates, the turbolator is driven to rotate in the cavity to stir a heat transfer medium, and the dynamic turbolator can actively cut the heat transfer medium close to the inner wall of the heat exchanger body, so that the reduction of thermal resistance in the heat transfer process is realized, the heat transfer coefficient K is improved, and the improvement of the heat exchange efficiency is further realized.

According to the reinforced heat exchanger provided by the invention, the traditional single heat transfer medium is improved into a mixture of metal particles and heat transfer liquid, and the mixed heat transfer medium can further reduce the thermal resistance in the heat transfer process, so that the effect of improving the heat transfer coefficient K and further improving the heat exchange efficiency is achieved.

According to the reinforced heat exchanger provided by the invention, the rotatable rotating shaft is arranged in the cavity of the heat exchanger body, and the flow rate of a heat transfer medium in the heat exchanger can be reflected by detecting the rotating speed of the rotating shaft;

in addition, based on the structure of the reinforced heat exchanger provided by the invention, the flow resistance of the heat transfer medium in the heat exchanger body can be controlled by controlling the rotation speed of the rotating shaft or controlling the rotation direction, so that the flow speed of the heat transfer medium in the heat exchanger body is adjusted, and the adjustment of the heat exchange effect is realized.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Drawings

FIG. 1 is a schematic diagram illustrating a heat exchanger according to an embodiment of the present invention;

the reference numbers in the figures illustrate: 10-heat exchanger body, 11-cavity, 12-liquid inlet, 13-liquid outlet, 20-rotating shaft, 30-turbolator, 40-transmission system and 50-driving element.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further clarified by combining the specific drawings.

As described above, referring to fig. 1, the present invention provides a reinforced heat exchanger, which includes a heat exchanger body 10, a rotating shaft 20, and a turbolator 30; the heat exchanger body 10 is provided with a cavity 11 for flowing heat transfer medium, the heat exchanger body 10 is respectively provided with a liquid inlet 12 for leading in the heat transfer medium, and a liquid outlet 13 for leading out the heat transfer medium; and it is preferable that the liquid inlet 12 and the liquid outlet 13 are provided at both ends of the heat exchanger body 10 to extend a flow path of the heat transfer medium, thereby maximizing a heat exchange effect.

The rotating shaft 20 is rotatably arranged in the cavity 11 of the heat exchanger body 10; the turbolator 30 is arranged on the shaft body of the rotating shaft 20, and when the rotating shaft 20 rotates, the suspension end of the turbolator 30 cuts the heat transfer medium at the position, close to the inner wall of the heat exchanger body 10, of the cavity 11.

Compared with the technical scheme of the traditional fixed turbolator, in the reinforced heat exchanger provided by the invention, the turbolator 30 is arranged on the rotatable rotating shaft 20, so that the suspended end of the turbolator 30 can cut the heat transfer medium at the position, close to the inner wall of the heat exchanger body 10, of the cavity 11 in the rotating process of the rotating shaft 20, the heat transfer medium at the position can be continuously updated, the thermal resistance in the heat transfer process is reduced, the heat transfer coefficient K is improved, and the heat exchange efficiency is further improved.

In a specific embodiment of the present invention, the intensified heat exchanger further includes a rotation speed measuring unit, and the rotation speed measuring unit is disposed at one end of the rotating shaft 20 and is used for measuring the rotation speed of the rotating shaft 20. By measuring the rotational speed of the shaft 20, the flow rate of the heat transfer medium in the heat exchanger is reflected. More specifically, in the present invention, the rotation speed measuring unit may be a device commonly used by those skilled in the art, such as a laser rotation speed sensor.

It should be noted that, in the present invention, the rotating shaft 20 can be passively rotated, that is, the rotating shaft 20 is driven to rotate by the flow of the heat transfer medium in the cavity 11, and the turbulator 30 on the rotating shaft 20 can disturb the heat transfer medium;

in addition, the rotating shaft 20 can also actively rotate, specifically, in a specific embodiment of the present invention, the intensifying heat exchanger further includes a transmission system 40 and a driving element 50, wherein the transmission system 40 is in transmission connection with one end of the rotating shaft 20; the power output end of the driving element 50 is in transmission connection with the transmission system 40, and is used for providing power for rotating the rotating shaft 20.

In a specific working process, the driving element 50 drives the transmission system 40 and drives the rotating shaft 20 to rotate, so that the disturbance of the heat transfer medium flowing in the cavity 11 is realized; specifically, the driving element 50 may be an electric motor, and the transmission system 40 may be a gear transmission.

It should be noted that, when the driving element 50 is not powered on and the rotating shaft 20 is driven to rotate by the flowing heat transfer medium, the motor of the driving element 50 at this time is equivalent to a generator, and can output an electrical signal related to the flow rate of the heat transfer medium.

According to the invention, in order to further reduce the thermal resistance in the heat transfer process, the invention provides a novel heat transfer medium which is a mixture of metal particles and heat transfer liquid.

Further, the metal particles serve to further improve the heat transfer effect of the heat transfer medium, and the metal particles may be made of a metal material with a relatively high thermal conductivity coefficient, which is known to those skilled in the art, and specifically, the material of the metal particles is selected from at least one of ferrous metal particles, aluminum metal particles, copper metal particles, or silver metal particles.

Further, in the present invention, the size of the metal particles may be adaptively selected according to the specification type of the enhanced heat exchanger, for example, the size of the metal particles may be in the order of nanometers, micrometers or millimeters. Further, in the present invention, the weight ratio of the metal particles to the heat transfer liquid may be specifically selected according to the type of specification of the enhanced heat exchanger.

According to the invention, the heat transfer medium doped with the metal particles further reduces the thermal resistance in the heat transfer process, improves the heat transfer coefficient K, and further improves the heat exchange efficiency.

The foregoing shows and describes the general principles, essential features, and inventive features of this invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.