A wind-cooled heat dissipation device and a regenerated smoke distillation mechanism

Abstract

This invention discloses an air-cooled heat dissipation device and a reconstituted smoke distillation mechanism, relating to the technical field of reconstituted smoke equipment. Specifically, the reconstituted smoke distillation mechanism includes a material heating section and a steam gathering section, which are connected. The air-cooled heat dissipation device includes: a housing for enclosing the reconstituted smoke distillation mechanism, with a heat dissipation duct between the inner wall of the housing and the reconstituted smoke distillation mechanism, and an air inlet and an air outlet at both ends of the heat dissipation duct; and a blower connected to the air inlet, applying positive pressure airflow into the heat dissipation duct. This air-cooled heat dissipation device and reconstituted smoke distillation mechanism, by adding an air-cooled heat dissipation device, solves the problem of insufficient cooling capacity of the built-in water cooling system in the reconstituted smoke distillation mechanism, enabling the reconstituted smoke production equipment to quickly cool from the production temperature to a washable temperature.

Description

Technical Field

[0001] This invention relates to the field of reconstituted tobacco equipment technology, and more specifically, to an air-cooled heat dissipation device. Furthermore, this invention also relates to a reconstituted tobacco distillation mechanism including the aforementioned air-cooled heat dissipation device. Background Technology

[0002] Reconstituted tobacco refers to a recycled product made from waste materials such as tobacco stems, dust, and broken tobacco leaves discarded during cigarette manufacturing. It is produced in sheet or shred form and used as a filling material for cigarettes. Reconstituted tobacco plays a vital role in cigarette production, not only reducing costs but also improving the intrinsic quality of cigarettes.

[0003] Reconstituted tobacco production equipment mainly uses heated tobacco leaves to evaporate them into gaseous tobacco leaves. This gaseous tobacco leaves are then collected and piped into a condensation unit for condensation, ultimately extracting the effective components from the reconstituted tobacco. During the extraction process, the temperature inside the reconstituted tobacco production equipment can reach several hundred degrees Celsius. After production, the inside of the reconstituted tobacco production equipment often needs to be cleaned. However, before cleaning, the inside of the production equipment needs to be cooled down rapidly. Previously, this was often achieved using the equipment's built-in water cooling system. However, this built-in water cooling system is mainly used to ensure temperature control during production, and its flow rate is relatively small. It cannot meet the requirements for rapid cooling, and the cooling speed is slow at high temperatures. It only becomes effective when the temperature drops to 200 degrees Celsius. Therefore, a rapid cooling device needs to be installed.

[0004] In summary, how to provide a solution to avoid the problem of slow cooling speed in reconstituted tobacco production equipment due to the ineffective cooling effect of the built-in water cooling system is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide an air-cooled heat dissipation device, which solves the problem of insufficient cooling capacity of the built-in water cooling system in the reconstituted smoke distillation mechanism by adding an air-cooled heat dissipation device, and enables the reconstituted smoke production equipment to be rapidly reduced from the production temperature to a cleanable temperature.

[0006] Another object of the present invention is to provide a regenerated smoke distillation mechanism including the above-mentioned air-cooled heat dissipation device, which has the same technical features and can achieve the same object.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A wind-cooled heat dissipation device is used for heat dissipation in a reconstituted smoke distillation mechanism, the reconstituted smoke distillation mechanism including a material heating section and a steam gathering section, the material heating section and the steam gathering section being connected, and the wind-cooled heat dissipation device comprising:

[0009] A housing is used to enclose the reconstituted smoke distillation mechanism. A heat dissipation duct is provided between the inner wall of the housing and the reconstituted smoke distillation mechanism. An air inlet and an air outlet are respectively provided at both ends of the heat dissipation duct.

[0010] A blower, connected to the air inlet, applies positive pressure airflow into the heat dissipation duct;

[0011] A negative pressure device is connected to the exhaust vent, which creates negative pressure at the exhaust vent to accelerate the airflow out of the heat dissipation duct.

[0012] Preferably, both the air inlet and the air outlet are provided with wind deflectors, which are used to allow the heat dissipation air duct to be connected to both the air inlet and the air outlet simultaneously, or to allow the material heating section to be connected to both the air inlet and the air outlet simultaneously.

[0013] Preferably, the heat dissipation duct is divided into a top-level duct and a bottom-level duct by a partition plate. The top-level duct is in contact with the steam gathering part for heat conduction, and the bottom-level duct is in contact with the material heating part for heat conduction.

[0014] Preferably, both the air inlet and the air outlet are provided with wind deflectors, which are used to allow the top-level air duct to be open independently, or to allow the bottom-level air duct to be open independently.

[0015] Preferably, both the air inlet and the air outlet are provided with wind deflectors, which can allow the bottom air duct to be open independently, or allow the top air duct and the bottom air duct to be open simultaneously.

[0016] Preferably, the windshield is driven by a telescopic rod. When the telescopic rod moves to one end of its travel point, the windshield can block the top-level air duct. When the telescopic rod moves to the other end of its travel point, the air duct can allow the top-level air duct to open.

[0017] Preferably, the bottom air duct is provided with several sets of heat dissipation ribs, which are fixedly arranged in a ring array on the outer wall of the material heating part, and the length direction is consistent with the center line direction of the material heating part.

[0018] Preferably, an air-gathering plate is provided along the cross-sectional direction inside the bottom air duct, the air-gathering plate is fixed to the inner wall of the box, and ventilation holes are provided at the corresponding positions of the air-gathering plate and the heat dissipation fins.

[0019] Preferably, the heat dissipation duct is equipped with a temperature sensor for detecting the temperature at various points of the reconstituted smoke distillation mechanism.

[0020] A regenerated smoke distillation mechanism includes the air-cooled heat dissipation device described in any one of the above.

[0021] The air-cooled heat dissipation device provided by the present invention has at least the following advantages compared with the prior art:

[0022] 1. By adding a casing outside the regenerated smoke distillation unit, the cross-section of the heat dissipation duct is reduced, the flow rate of the heat dissipation airflow is increased, and the heat exchange efficiency between the regenerated smoke distillation unit and the heat dissipation airflow is improved, thereby increasing the cooling rate.

[0023] 2. The system employs a dual-power system with a blower and a negative pressure device installed at both ends of the heat dissipation duct. This creates positive and negative pressure at both ends of the duct, further increasing the gas flow rate within the duct and ensuring consistent flow rates at the inlet and outlet. This reduces gas leakage issues caused by insufficient airtightness of the reconstituted smoke distillation mechanism, including gas leakage from inside the mechanism and gas entering subsequent production stages through the duct.

[0024] The regenerated smoke distillation mechanism provided by the present invention includes the above-mentioned air-cooled heat dissipation device and has the same beneficial effects, which will not be described in detail here. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the specific air-cooled heat dissipation device provided by the present invention;

[0027] Figure 2 This is a schematic diagram of the specific regenerated smoke distillation mechanism provided by the present invention;

[0028] Figure 3 This is a schematic diagram of the internal structure of the specific reconstituted smoke distillation mechanism provided by the present invention;

[0029] Figure 4 This is a schematic diagram of the transverse cross-section inside the specific reconstituted smoke distillation mechanism provided by the present invention.

[0030] Figures 1-4 middle:

[0031] 1. Housing; 101. Material heating section; 102. Heat dissipation fins; 103. Air concentrator; 1031. Ventilation hole; 104. Heating component; 105. Distillation pipe; 106. Shelf; 1061. Air inlet; 1062. Air outlet; 107. Telescopic rod; 108. First windshield; 109. Second windshield; 110. Steam concentrator; 2. Blower; 3. Negative pressure equipment; 4. Temperature sensor; 5. Control box; 6. Heat dissipation duct; 601. Top layer duct; 602. Bottom layer duct. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] The core of this invention is to provide an air-cooled heat dissipation device. By adding an air-cooled heat dissipation device, the problem of insufficient cooling capacity of the built-in water cooling system in the reconstituted smoke distillation mechanism can be solved, enabling the reconstituted smoke production equipment to quickly drop from the production temperature to a cleanable temperature.

[0034] Another core aspect of this invention is to provide a regenerated smoke distillation mechanism that includes the aforementioned air-cooled heat dissipation device, possessing the same technical features and capable of achieving the same purpose.

[0035] Please refer to Figures 1-4 A wind-cooled heat dissipation device is used for heat dissipation in a reconstituted smoke distillation mechanism. The reconstituted smoke distillation mechanism includes a material heating section 101 and a steam gathering section 110, which are connected. The wind-cooled heat dissipation device includes:

[0036] The housing 1 is used to enclose the reconstituted smoke distillation mechanism. A heat dissipation duct 6 is provided between the inner wall of the housing 1 and the reconstituted smoke distillation mechanism. An air inlet 1061 and an air outlet 1062 are respectively provided at both ends of the heat dissipation duct 6.

[0037] Blower 2 is connected to air inlet 1061 and applies positive pressure airflow into heat dissipation duct 6;

[0038] The negative pressure device 3 is connected to the exhaust port 1062, which creates negative pressure at the exhaust port 1062 to accelerate the airflow out of the heat dissipation duct 6.

[0039] In actual production, the raw materials are fed into the material heating section 101 via a spiral auger. Heating in the material heating section 101 causes the effective components to volatilize as high-temperature steam, which is then collected by the steam gathering section 110 and discharged through the distillation pipe 105 to the subsequent condensing equipment for condensation. After a period of production or when changing the type of raw materials, the inner wall of the reconstituted smoke distillation unit needs to be cleaned. Before cleaning, the distillation unit needs to be cooled to room temperature or close to room temperature to facilitate access and cleaning by operators. Therefore, a box is added to the outside of the reconstituted smoke distillation unit. Body 1 is used to form a heat dissipation duct 6 between itself and the outer wall of the reconstituted smoke distillation mechanism, so that the heat dissipation airflow is closer to the reconstituted smoke distillation mechanism during circulation, thereby improving heat exchange efficiency and maximizing the cooling rate. At the same time, during the reconstituted smoke distillation process, its products contain combustible or flammable gases. When the external heat dissipation airflow contains oxygen, it will come into contact with the residual distilled gas after entering the housing 1, which may easily cause a deflagration accident. Therefore, the gas introduced by the blower 2 is preferably a flame-retardant gas, such as room temperature nitrogen or compressed nitrogen, to avoid the internal distilled gas from burning at high temperature, while also having good economic efficiency.

[0040] like Figure 1 As shown, a blower 2 and a negative pressure device 3 are respectively installed at the air inlet 1061 and the air outlet 1062 of the housing 1. During operation, the power of the two is made the same, that is, the air intake and exhaust volume are the same, ensuring that the pressure inside the heat dissipation duct 6 is constant. There will be no change in the pressure difference between the inside and outside of the regenerated smoke distillation mechanism and the inner cavity of the housing 1, thereby reducing the gas exchange between the two inner cavities. This avoids the problem of distillation steam leakage caused by the pressure inside the distillation mechanism being much greater than the pressure inside the housing 1, or the problem of heat dissipation airflow entering the distillation mechanism caused by the pressure inside the distillation mechanism being less than the pressure inside the housing 1. Consequently, the heat dissipation airflow enters the subsequent condensation equipment through the distillation pipe 105, thereby reducing the probability of mixing between residual steam and heat dissipation airflow in the distillation mechanism, and thus reducing the probability of high-temperature deflagration of residual steam.

[0041] Meanwhile, in actual production, the distillation mechanism requires a high operating temperature. In order to reduce energy waste caused by heat dissipation, the entire box 1 can be used as insulation material to isolate the distillation mechanism from the outside world and reduce heat loss during the production process.

[0042] In some embodiments, wind deflectors are provided at both the air inlet 1061 and the air outlet 1062. The wind deflectors are used to make the heat dissipation air duct 6 simultaneously connected to the air inlet 1061 and the air outlet 1062, or to make the material heating part 101 simultaneously connected to the air inlet 1061 and the air outlet 1062.

[0043] Wind deflectors are installed at the air inlet 1061 and the air outlet 1062 respectively to control the opening and closing of the heat dissipation duct 6, so as to prevent heat loss through the heat dissipation duct 6 during the operation of the distillation mechanism. The heat dissipation duct 6 is closed when the distillation mechanism is working, and is only opened when the heat dissipation duct 6 is cooling.

[0044] Meanwhile, when the temperature of the distillation unit drops below the residual vapor ignition point, and the material flow inside the material heating section 101 has been emptied, the heat dissipation airflow can be directly connected to the material heating section 101 by directly connecting the air inlet 1061 and the air outlet 1062 to the material heating section 101, thereby accelerating the heat exchange efficiency and improving the cooling effect. It is worth noting that when the blower 2 introduces a flame-retardant gas, such as nitrogen or helium, the material heating section 101 can be directly connected when the distillation unit is at a high temperature, which will not cause vapor deflagration. At the same time, since the blower 2 and the negative pressure device 3 work simultaneously and have the same airflow, the problem of backflow in the distillation unit will not occur.

[0045] In some embodiments, the heat dissipation duct 6 is divided into a top duct 601 and a bottom duct 602 by a partition 106. The top duct 601 is in contact with the steam gathering part 110 for heat conduction, and the bottom duct 602 is in contact with the material heating part 101 for heat conduction.

[0046] When the distillation unit stops working, its interior is at a high temperature and some high-temperature steam remains. This high-temperature steam mainly accumulates in the upper steam gathering part 110. If heat dissipation and cooling are carried out simultaneously, the steam gathering part 110 cools down faster than the lower material heating part 101 because the steam gathering part 110 has fewer solid components and the heating components 104 are generally concentrated in the material heating part 101. Therefore, the upper layer of the distillation unit cools down faster than the lower layer. Under the same cooling conditions, the upper layer temperature is lower than the lower layer. As a result, the residual steam will condense and fall to the material heating part 101 first, or the lower material heating part 101 will continue to generate high-temperature steam, which will cool and adhere to the inner wall in the steam gathering part 110, making cleaning more difficult.

[0047] Therefore, the heat dissipation air duct 6 is divided into a top air duct 601 and a bottom air duct 602 by the partition plate 106, such as Figure 3 As shown, the solid arrow indicates the gas flow direction in the top air duct 601, and the hollow arrow indicates the gas flow direction in the bottom air duct 602. By controlling the difference in airflow or the sequence of conduction between the top air duct 601 and the bottom air duct 602, the cooling rate of the steam gathering part 110 and the material heating part 101 can be controlled, reducing the generation of subsequent steam. At the same time, it can also reduce the amount of steam condensation and adhesion to the inner wall of the distillation mechanism, reducing the difficulty of cleaning.

[0048] In some embodiments, wind deflectors are provided at both the air inlet 1061 and the air outlet 1062. The wind deflectors are used to allow the top-level air duct 601 to be open independently, or to allow the bottom-level air duct 602 to be open independently.

[0049] The installation form of the windshield is not limited; it can be a reversing valve or a swing blade. The operation of the windshield enables the connection of different air ducts. For example, when cooling and heat dissipation, the bottom air duct 602 is first opened to reduce the temperature of the material heating section 101 to a specified temperature. At this time, high-temperature steam is no longer generated in the material heating section 101. Then, the bottom air duct 602 is closed, and the top air duct 601 is opened to cool the steam gathering section 110. When the temperature of the steam gathering section 110 is close to that of the material heating section 101, the above steps are repeated until the overall temperature of the regenerated smoke distillation mechanism drops to a temperature that can be cleaned.

[0050] In some other embodiments, wind deflectors are provided at both the air inlet 1061 and the air outlet 1062. The wind deflectors can allow the bottom air duct 602 to be open independently, or allow the top air duct 601 and the bottom air duct 602 to be open simultaneously.

[0051] Figure 3 As shown, a first wind deflector 108 is provided at the air inlet 1061 and a second wind deflector 109 is provided at the air outlet 1062. When the first wind deflector 108 and the second wind deflector 109 move outward, they will fit against the baffle at the end of the partition plate 106, thereby cutting off the top air duct 601 and only opening the bottom air duct 602. After the airflow enters from the air inlet 1061, it exchanges heat with the material heating section 101 through the bottom air duct 602 and is discharged through the air outlet 1062, making the heat exchange efficiency of the material heating section 101 higher than that of the steam gathering section 110.

[0052] When the first windshield 108 and the second windshield 109 move inward, both of them disengage, meaning that the top air duct 601 and the bottom air duct 602 are simultaneously connected.

[0053] The application involves first opening only the bottom air duct 602 to rapidly cool the material heating section 101 to a specified temperature, and then simultaneously opening the top air duct 601 and the bottom air duct 602 to allow the material heating section 101 and the steam gathering section 110 to dissipate heat synchronously until the temperature of the regenerated smoke distillation mechanism drops to the cleaning temperature.

[0054] In some embodiments, the windshield is driven by the telescopic rod 107. When the telescopic rod 107 moves to one end of its travel point, the windshield can block the top-level air duct 601. When the telescopic rod 107 moves to the other end of its travel point, the air duct can open the top-level air duct 601.

[0055] The windshield's driving method includes, but is limited to, linear motion driven by the telescopic rod 107 and swing motion driven by a motor, with linear motion driven by the telescopic rod 107 being preferred. Figure 3 As shown, the top-level air duct 601 is opened and closed by means of the telescopic rod 107. The telescopic rod 107 is preferably driven by air pressure, and the compressed air is preferably nitrogen to avoid internal steam explosion.

[0056] To further improve the heat dissipation speed, in some embodiments, a number of heat dissipation ribs 102 are provided in the bottom air duct 602. The heat dissipation ribs 102 are fixedly arranged in a ring array on the outer wall of the material heating part 101, and the length direction is consistent with the center line direction of the material heating part 101.

[0057] like Figure 2 and Figure 4 As shown, by setting heat dissipation fins 102 in the bottom air duct 602 and fixing the heat dissipation fins 102 to the outer wall of the material heating part 101, the heat exchange area of ​​the material heating part 101 is increased, and the cooling of the material heating part 101 is accelerated.

[0058] Meanwhile, in some embodiments, an air-gathering plate 103 is provided in the bottom air duct 602 along the cross-sectional direction. The air-gathering plate 103 is fixed to the inner wall of the box 1, and ventilation holes 1031 are provided at the corresponding positions of the air-gathering plate 103 and the heat dissipation rib 102.

[0059] The addition of the air-concentrating plate 103 further restricts the flow channel of the heat dissipation airflow, allowing it to come into further contact with the effective heat exchange surface for heat exchange. For example, more airflow flows through the gaps between the heat dissipation fins 102, and the gas velocity at the ventilation hole 1031 is significantly increased, accelerating heat exchange.

[0060] In some implementations, a temperature sensor 4 is installed inside the heat dissipation duct 6 to detect the temperature at various points of the reconstituted smoke distillation mechanism;

[0061] Temperature sensors 4 are arranged on the outer and inner walls of the housing 1, the outer and inner walls of the material heating section 101, and the outer and inner walls of the steam gathering section 110 to monitor the temperature in real time. The monitoring data is transmitted to the control box 5 and displayed on the screen inside the control box 5. When the temperature reaches the set threshold, an audible and visual alarm is triggered by the warning light or speaker connected to the control box 5, which facilitates the operator's control of the temperature inside the regenerated smoke distillation equipment.

[0062] In addition to the air-cooled heat dissipation device disclosed in the above embodiments, the present invention also provides a regenerated smoke distillation mechanism including the above-mentioned air-cooled heat dissipation device. The structure of other parts of the regenerated smoke distillation mechanism is described in the prior art and will not be repeated here.

[0063] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0064] The air-cooled heat dissipation device and the regenerated smoke distillation mechanism provided by the present invention have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make several improvements and modifications to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A wind-cooled heat dissipation device for heat dissipation of a regenerated smoke distillation mechanism, the regenerated smoke distillation mechanism comprising a material heating section (101) and a steam gathering section (110), the material heating section (101) and the steam gathering section (110) being connected, characterized in that, The air-cooled heat dissipation device includes: The housing (1) is used to enclose the reconstituted smoke distillation mechanism. A heat dissipation duct (6) is provided between the inner wall of the housing (1) and the reconstituted smoke distillation mechanism. An air inlet (1061) and an air outlet (1062) are respectively provided at both ends of the heat dissipation duct (6). A blower (2) is connected to the air inlet (1061) and applies positive pressure airflow into the heat dissipation duct (6); The negative pressure device (3) is connected to the exhaust port (1062) and forms a negative pressure at the exhaust port (1062) to accelerate the airflow out of the heat dissipation duct (6); The heat dissipation duct (6) is divided into a top duct (601) and a bottom duct (602) by a partition plate (106). The top duct (601) is in contact with the steam gathering part (110) for heat conduction, and the bottom duct (602) is in contact with the material heating part (101) for heat conduction. Both the air inlet (1061) and the air outlet (1062) are equipped with wind deflectors, which are used to allow one of the top-level air duct (601) and the bottom-level air duct (602) to be connected individually or simultaneously.

2. The air-cooled heat dissipation device according to claim 1, characterized in that, Both the air inlet (1061) and the air outlet (1062) are provided with wind deflectors. The wind deflectors are used to make the heat dissipation air duct (6) simultaneously connected to the air inlet (1061) and the air outlet (1062), or to make the material heating part (101) simultaneously connected to the air inlet (1061) and the air outlet (1062).

3. The air-cooled heat dissipation device according to claim 1, characterized in that, The windshield is driven by a telescopic rod (107). When the telescopic rod (107) moves to one end of its travel point, the windshield can block the top-level air duct (601). When the telescopic rod (107) moves to the other end of its travel point, the air duct can open the top-level air duct (601).

4. The air-cooled heat dissipation device according to claim 1, characterized in that, The bottom air duct (602) is provided with a number of heat dissipation ribs (102). The heat dissipation ribs (102) are fixedly arranged in a ring array on the outer wall of the material heating part (101), and the length direction is consistent with the center line direction of the material heating part (101).

5. The air-cooled heat dissipation device according to claim 4, characterized in that, An air-gathering plate (103) is provided along the cross-sectional direction inside the bottom air duct (602). The air-gathering plate (103) is fixed to the inner wall of the box (1), and ventilation holes (1031) are provided at the corresponding positions of the air-gathering plate (103) and the heat dissipation ribs (102).

6. The air-cooled heat dissipation device according to claim 1, characterized in that, A temperature sensor (4) for detecting the temperature at various points in the reconstituted smoke distillation mechanism is installed inside the heat dissipation duct (6).

7. A regenerated smoke distillation mechanism, characterized in that, Includes the air-cooled heat dissipation device as described in any one of claims 1-6.

Images