Cooling tank with good heat dissipation effect

Abstract

The utility model relates to a cooling tank technical field, concretely relates to a cooling tank with good heat dissipation effect, including jar body, motor on jar body, stirring mechanism in jar body and with motor drive connection, still include: at least one group of cooling jacket that surrounds jar body outer wall to the gas supply device for supplying gas to cooling jacket, cooling jacket inside is equipped with cooling runner, and is equipped with water inlet and water outlet interface that communicates with outside pipeline, through with cooling jacket water inlet path of enterprise mixing mechanism integration, ingenious use venturi effect and micropore dispersion combination mode, generate the micron -sized bubble that distributes uniformly in cooling liquid, the cavitation effect that these bubbles produce when moving and collapsing in spiral runner, can violent destruction thermal boundary layer to break through the bottleneck of traditional liquid cooling heat exchange efficiency, simultaneously, inside wall -scraping type stirring and outside cavitation cooling form cooperation, realized the efficient heat management of inside and outside system.

Description

Technical Field

[0001] This utility model relates to the field of cooling tank technology, specifically a cooling tank with good heat dissipation effect. Background Technology

[0002] In chemical, pharmaceutical, and food industries, cooling tanks are a widely used key piece of equipment used to cool down the materials inside the tank or maintain the process temperature. Currently, most common cooling tanks adopt a jacketed water-cooling structure, which means that a sealed jacket is set on the outer wall of the tank, allowing cooling water to flow inside the jacket and carry away the heat of the materials inside the tank through heat conduction.

[0003] However, this traditional jacketed cooling method has obvious technical bottlenecks: 1) Cooling tanks usually rely solely on the flow of coolant within the jacket for heat transfer, and their heat exchange efficiency is limited by the liquid boundary layer, with limited room for improvement; 2) The jacket of traditional cooling tanks is often a single, continuous integral structure. Once cooling is started, the entire tank must be cooled, even if only a portion of the material inside the tank needs to be cooled, resulting in energy waste. Therefore, in view of the above situation, there is an urgent need to develop a cooling tank with good heat dissipation performance to overcome the shortcomings in current practical applications and meet current needs. Utility Model Content

[0004] The purpose of this invention is to provide a cooling tank with good heat dissipation to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cooling tank with good heat dissipation effect, comprising a tank body, a motor mounted on the tank body, a stirring mechanism mounted inside the tank body and driven by the motor, and further comprising:

[0006] At least one cooling jacket surrounding the outer wall of the tank, and a gas source device for supplying gas to the cooling jacket;

[0007] The cooling jacket has a cooling channel inside, and is equipped with an inlet and an outlet water interface that connects to the external pipeline. A gas-liquid mixing mechanism is provided between the inlet water interface and the inlet of the cooling channel.

[0008] The gas-liquid mixing mechanism includes a flow path narrowing section and an air inlet section connected thereto. The flow path narrowing section is connected in series in the coolant path, and the air inlet section is connected to the air source device, so that the gas forms microbubbles in the coolant flowing through the flow path narrowing section.

[0009] Specifically, by using a gas-liquid mixing mechanism located between the cooling jacket water inlet and the cooling channel, the pressure difference generated by the narrowing of the flow path is used to introduce gas from the gas source device through the air inlet and form microbubbles. This causes the coolant to form a gas-liquid two-phase flow when it flows through the cooling channel, which greatly enhances the heat exchange efficiency and provides a uniform, stable and efficient heat dissipation effect for the tank. At the same time, the structure is compact and easy to implement and maintain.

[0010] Preferably, the reduced diameter section of the flow path is a venturi tube structure, and the air intake section is connected to the smallest section of the inner diameter of the reduced diameter section.

[0011] Specifically, by adopting a Venturi tube structure and connecting the air intake to its throat (the section with the smallest inner diameter), the significant negative pressure generated by the Venturi effect at that point can be fully utilized. This allows for efficient gas ejection without additional power, and the high-speed fluid at the throat ensures that the gas is rapidly sheared and broken up, achieving a more thorough and uniform mixing with the coolant. Ultimately, this generates smaller and denser microbubbles, significantly enhancing the disturbance and heat transfer efficiency of the gas-liquid two-phase flow.

[0012] Preferably, the air intake is equipped with microporous elements, which allow gas to diffuse into the coolant in the form of bubbles.

[0013] Specifically, by utilizing its uniformly distributed microporous structure, the gas is initially broken into a large number of fine initial bubble nuclei. When these bubble nuclei subsequently enter the high-shear region of the flow path narrowing section, they can be sheared into smaller microbubbles more efficiently and uniformly, thereby significantly improving the uniformity and stability of gas-liquid mixing. This creates superior conditions for triggering a more intense and widespread bubble collapse "cavitation effect" in the cooling channel, and ultimately maximizes the heat dissipation efficiency by enhancing boundary layer disturbance and heat transfer area.

[0014] Preferably, the air intake is also equipped with a one-way valve to prevent liquid backflow.

[0015] Specifically, it can effectively prevent coolant from flowing back through the air intake when the water supply pressure fluctuates or the air source device is temporarily shut down, thereby avoiding coolant contamination of the air circuit, damage to the microporous components and air source device, ensuring the reliability and stability of the system, while reducing maintenance costs and failure risks.

[0016] Preferably, the cooling channel is a channel that extends spirally along the cooling jacket.

[0017] Specifically, it can significantly extend the flow path and heat exchange time of the coolant and the microbubbles it contains, ensuring sufficient and uniform heat exchange with the outer wall of the tank. The centrifugal force and secondary flow effect induced by the spiral structure can further enhance fluid disturbance, forcing the microbubbles to move closer to the high-temperature wall, thereby more effectively utilizing the "cavitation effect" of bubble collapse to destroy the thermal boundary layer, maximizing the local heat exchange intensity, and ultimately achieving a highly efficient and uniform heat dissipation effect overall, while avoiding the heat exchange dead zone that is prone to occur in traditional direct-flow channels.

[0018] Preferably, multiple sets of cooling jackets are distributed along the axial direction of the tank.

[0019] Specifically, this design allows the cooling zone to cover different heights of the tank, enabling precise zoned control of the material temperature inside the tank. More importantly, the design allows the system to start and stop cooling jackets of appropriate heights and numbers based on the height and temperature distribution of the material inside the tank or the heat exchange requirements of different process stages during actual production. This avoids ineffective cooling of areas that are not filled with material or stages that do not require strong heat exchange, greatly reducing energy consumption and achieving precise, efficient, and energy-saving heat dissipation control.

[0020] Preferably, the stirring mechanism includes a stirring shaft and at least one set of stirring blades mounted thereon, wherein the outer periphery of one set of stirring blades is adapted to the shape of the inner wall of the tank.

[0021] Specifically, this structure allows the stirring paddle to effectively scrape the inner wall of the tank when rotating, not only removing the material layer adhering to the inner wall and eliminating heat exchange dead zones, but also strongly promoting the thermal convection and radial mixing of the material inside the tank. This significantly enhances the heat transfer efficiency between the material and the inner wall of the tank, forming a synergistic effect with the microbubble enhanced heat exchange technology of the external cooling jacket, together ensuring the efficient and uniform heat dissipation effect of the entire cooling tank.

[0022] Preferably, the gas source device is a compressor that provides clean compressed gas.

[0023] Specifically, using a compressor as the air source device can continuously provide stable and clean compressed gas. This not only ensures the stability of the air source pressure and flow rate during the microbubble generation process, but more importantly, the clean and oil-free gas effectively avoids the blockage and contamination of the microporous elements caused by impurities or oil mist in the gas, ensuring the long-term reliability of the gas-liquid mixing mechanism. This maintains the high-efficiency heat dissipation performance of the microbubble cooling technology and reduces the system's maintenance frequency and cost.

[0024] Compared with the prior art, this utility model provides a cooling tank with good heat dissipation effect, which has the following beneficial effects:

[0025] By integrating the mixing mechanism into the cooling jacket's water inlet path, the Venturi effect and microporous dispersion are cleverly combined to generate uniformly distributed micron-sized bubbles in the coolant. The cavitation effect generated when these bubbles move and collapse within the spiral flow channel can severely disrupt the thermal boundary layer, thereby breaking through the bottleneck of traditional liquid cooling heat exchange efficiency. At the same time, the internal wall-scraping stirring and external cavitation cooling work synergistically to achieve efficient thermal management both inside and outside the system. This solution not only significantly improves heat dissipation intensity and uniformity, but also achieves on-demand cooling due to its modular cooling jacket design with zoned control, effectively reducing energy consumption and demonstrating significant advantages in ensuring long-term operational reliability. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments 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.

[0027] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0028] Figure 2 This is a schematic diagram of the tank structure of this utility model;

[0029] Figure 3 This is a side view of the tank body of this utility model;

[0030] Figure 4 This is one of the schematic diagrams of the cooling jacket structure of this utility model;

[0031] Figure 5 This is the second schematic diagram of the cooling jacket structure of this utility model;

[0032] Figure 6 This is a partial cross-sectional view of the cooling jacket of this utility model;

[0033] Figure 7 This utility model Figure 5 Enlarged schematic diagram of part A;

[0034] Figure 8 This is a partial cross-sectional view of the air intake section of this utility model.

[0035] In the diagram: 10, tank body; 20, motor; 30, stirring shaft; 40, stirring paddle; 50, cooling jacket; 510, cooling channel; 520, water inlet; 530, water outlet; 540, gas-liquid mixing mechanism; 541, flow path narrowing section; 542, air inlet; 5421, microporous element; 543, one-way valve; 60, air source device. Detailed Implementation

[0036] 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.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] Example:

[0039] Please see Figures 1-8 This utility model provides a technical solution: a cooling tank with good heat dissipation effect, including a tank body 10, a motor 20 disposed on the tank body 10, a stirring mechanism disposed inside the tank body 10 and driven and connected to the motor 20, and further including:

[0040] At least one cooling jacket 50 is surrounded by the outer wall of the tank body 10, and a gas source device 60 is used to supply gas to the cooling jacket 50.

[0041] The cooling jacket 50 has a cooling channel 510 inside, and a water inlet 520 and a water outlet 530 connected to an external pipeline. A gas-liquid mixing mechanism 540 is provided between the water inlet 520 and the inlet of the cooling channel 510.

[0042] The gas-liquid mixing mechanism 540 includes a flow path narrowing section 541 and an air inlet section 542 connected thereto. The flow path narrowing section 541 is connected in series in the coolant path, and the air inlet section 542 is connected to the air source device 60, so that the gas forms microbubbles in the coolant flowing through the flow path narrowing section 541.

[0043] Specifically, by using the gas-liquid mixing mechanism 540 located between the water inlet 520 of the cooling jacket 50 and the cooling channel 510, the gas from the gas source device 60 is introduced through the air inlet 542 using the pressure difference generated by the narrowing section 541 of the flow path and forms microbubbles. This causes the coolant to form a gas-liquid two-phase flow when it flows through the cooling channel 510, which greatly enhances the heat exchange efficiency and provides a uniform, stable and efficient heat dissipation effect for the tank 10. At the same time, the structure is compact and easy to implement and maintain.

[0044] Preferably, the flow path narrowing section 541 is a venturi tube structure, and the air intake section 542 is connected to the smallest inner diameter section of the flow path narrowing section 541.

[0045] Specifically, by adopting a Venturi tube structure and connecting the intake section 542 with its throat (i.e., the section with the smallest inner diameter), the significant negative pressure generated by the Venturi effect can be fully utilized. This allows for efficient gas ejection without additional power, and the high-speed fluid in the throat ensures that the gas is rapidly sheared and broken up, achieving a more thorough and uniform mixing with the coolant. Ultimately, this generates smaller and denser microbubbles, significantly enhancing the disturbance and heat transfer efficiency of the gas-liquid two-phase flow.

[0046] Preferably, the air intake 542 is provided with a microporous element 5421, which allows the gas to diffuse into the coolant in the form of bubbles.

[0047] Specifically, by utilizing its uniformly distributed microporous structure, the gas is initially broken into a large number of fine initial bubble nuclei. When these bubble nuclei enter the high-shear region of the flow path narrowing section 541, they can be sheared into smaller microbubbles more efficiently and uniformly, thereby significantly improving the uniformity and stability of gas-liquid mixing. This creates superior conditions for triggering a more intense and widespread bubble collapse "cavitation effect" in the cooling channel 510. Ultimately, by enhancing boundary layer disturbance and heat transfer area, the heat dissipation efficiency is maximized.

[0048] Preferably, the air inlet 542 is also provided with a one-way valve 543 to prevent liquid backflow.

[0049] Specifically, it can effectively prevent coolant from flowing back through the air inlet 542 when the water supply pressure fluctuates or the air source device 60 is temporarily shut down, thereby avoiding coolant contamination of the air circuit, damage to the microporous element 5421 and the air source device 60, ensuring the reliability and stability of the system, while reducing maintenance costs and failure risks.

[0050] Preferably, the cooling channel 510 is a channel that extends spirally along the cooling jacket 50.

[0051] Specifically, it can significantly extend the flow path and heat exchange time of the coolant and the microbubbles it contains, ensuring sufficient and uniform heat exchange with the outer wall of the tank 10; the centrifugal force and secondary flow effect induced by the spiral structure can further enhance fluid disturbance, forcing the microbubbles to move closer to the high-temperature wall, thereby more effectively utilizing the "cavitation effect" of bubble collapse to destroy the thermal boundary layer, maximizing the local heat exchange intensity, and ultimately achieving a highly efficient and uniform heat dissipation effect overall, while avoiding the heat exchange dead zone that is prone to occur in traditional direct-flow channels.

[0052] Preferably, multiple sets of cooling jackets 50 are distributed along the axial direction of the tank body 10.

[0053] Specifically, this design enables the cooling zone to cover different heights of the tank 10, thereby achieving precise zoned control of the temperature of the material inside the tank. More importantly, this design allows the system to start and stop the corresponding height and number of cooling jackets 50 according to the height and temperature distribution of the material inside the tank or the heat exchange requirements of different process stages during actual production. This avoids ineffective cooling of areas that are not filled with material or stages that do not require strong heat exchange, greatly reducing energy consumption and achieving precise, efficient and energy-saving heat dissipation control.

[0054] Preferably, the stirring mechanism includes a stirring shaft 30 and at least one set of stirring paddles 40 mounted thereon, wherein the outer periphery of the set of stirring paddles 40 is adapted to the shape of the inner wall of the tank 10.

[0055] Specifically, this structure allows the stirring paddle 40 to effectively scrape the inner wall of the tank 10 when rotating, not only removing the material layer adhering to the inner wall and eliminating heat exchange dead zones, but also strongly promoting the thermal convection and radial mixing of the material inside the tank. This significantly enhances the heat transfer efficiency between the material and the inner wall of the tank 10, forming a synergistic effect with the microbubble enhanced heat exchange technology of the external cooling jacket 50, together ensuring the efficient and uniform heat dissipation effect of the entire cooling tank.

[0056] Preferably, the gas source device 60 is a compressor that provides clean compressed gas.

[0057] Specifically, using a compressor as the gas source device 60 can continuously provide stable and clean compressed gas. This not only ensures the stability of the gas source pressure and flow rate during the microbubble generation process, but more importantly, the clean and oil-free gas effectively avoids the blockage and contamination of the microporous element 5421 caused by impurities or oil mist in the gas, ensuring the long-term reliability of the gas-liquid mixing mechanism 540. This maintains the high-efficiency heat dissipation performance of the microbubble cooling technology and reduces the system's maintenance frequency and cost.

[0058] Working principle: The clean compressed gas provided by the gas source device 60 is initially dispersed by the microporous element 5421 of the air inlet 542. Under the action of the Venturi effect of the flow path narrowing section 541, it is efficiently sheared by the high-speed flowing coolant to form uniform micron-sized bubbles. These microbubble-rich coolants then enter the spirally extended cooling channel 510. The microbubbles collapse near the hot wall of the tank 10 to generate a cavitation effect. The local high pressure and micro-jet violently destroy the thermal boundary layer, greatly enhancing heat transfer. At the same time, the stirring mechanism driven by the motor 20 inside continuously scrapes the wall surface and promotes material circulation with its stirring blade 40 adapted to the tank wall. This achieves efficient synergy between internal forced convection and external microbubble cavitation cooling, ultimately enabling the entire system to achieve excellent heat dissipation.

[0059] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A cooling tank with good heat dissipation effect, comprising a tank body (10), a motor (20) disposed on the tank body (10), and a stirring mechanism disposed inside the tank body (10) and drivenly connected to the motor (20), characterized in that, Also includes: At least one cooling jacket (50) surrounding the outer wall of the tank (10), and a gas source device (60) for supplying gas to the cooling jacket (50). The cooling jacket (50) is provided with a cooling channel (510) inside, and is provided with a water inlet (520) and a water outlet (530) connected to an external pipeline. A gas-liquid mixing mechanism (540) is provided between the water inlet (520) and the inlet of the cooling channel (510). The gas-liquid mixing mechanism (540) includes a flow path narrowing section (541) and an air inlet section (542) connected thereto. The flow path narrowing section (541) is connected in series in the coolant path, and the air inlet section (542) is connected to the gas source device (60), so that the gas forms microbubbles in the coolant flowing through the flow path narrowing section (541).

2. The cooling tank with good heat dissipation effect according to claim 1, characterized in that: The flow path narrowing section (541) is a venturi tube structure, and the air inlet section (542) is connected to the smallest inner diameter section of the flow path narrowing section (541).

3. A cooling tank with good heat dissipation effect according to claim 1 or 2, characterized in that: The air intake (542) is provided with a microporous element (5421) inside, which allows the gas to diffuse into the coolant in the form of bubbles.

4. A cooling tank with good heat dissipation effect according to claim 3, characterized in that: The air intake (542) is also provided with a one-way valve (543) to prevent liquid backflow.

5. A cooling tank with good heat dissipation effect according to claim 1, characterized in that: The cooling channel (510) is a channel that extends spirally along the cooling jacket (50).

6. A cooling tank with good heat dissipation effect according to claim 1, characterized in that: Multiple sets of the cooling jackets (50) are distributed along the axial direction of the tank (10).

7. A cooling tank with good heat dissipation effect according to claim 1, characterized in that: The stirring mechanism includes a stirring shaft (30) and at least one set of stirring paddles (40) mounted thereon, wherein the outer periphery of one set of stirring paddles (40) is adapted to the shape of the inner wall of the tank (10).

8. A cooling tank with good heat dissipation effect according to claim 1, characterized in that: The gas source device (60) is a compressor that provides clean compressed gas.

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