Tobacco shred humidifying and warming device
By using the combination of heat exchanger and flash tank in tobacco processing technology to generate steam, and using the injector to mix evenly with the tobacco, the problem of high energy consumption in the traditional steam heating method is solved, and the effect of lower energy consumption and more efficient steam utilization is achieved.
Patent Information
- Application Number
- CN202421050162.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-15
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-05-15
AI Technical Summary
In the existing tobacco processing technology, the steam heating method consumes high energy when increasing the moisture content of tobacco, and consumes a large amount of natural gas and pure water, resulting in waste of resources and increased production costs.
A tobacco wire humidification and heat-enhancing device is designed, and steam is generated by a combination of heat exchanger and flash tank. It can achieve efficient steam generation through a heat medium supply device, a refrigeration compressor and an evaporator, and a induced ejector is used to evenly mix the steam with the tobacco wire to improve steam utilization efficiency.
Compared with the traditional steam boiler method, the new device consumes less energy and saves significantly, while improving steam utilization efficiency and reducing the amount of pure water.
Smart Images
Figure CN222916974U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cut tobacco processing, in particular to a cut tobacco humidifying and warming device. Background Art
[0002] Among the costs of cigarettes, cut tobacco accounts for the majority. The main technological objectives of cigarette cut tobacco manufacturing are to keep the quality of cut tobacco stable and consistent, ensure uniform raw material ratio, uniform application of flavoring essence, appropriate cut tobacco width, and uniform moisture; the second is to produce cut tobacco with a high filling value, increase toughness, and save raw materials; the third is to minimize fine particles as much as possible and reduce losses; among them, the moisture content of cut tobacco has a great impact on its combustion and taste. Generally speaking, the appropriate moisture content of cut tobacco is about 10%-13% (mass percentage content). At this moisture content, the combustion of cut tobacco can be ensured to be stable and the taste is comfortable. If the moisture content of cut tobacco is too high, the combustion speed will be too fast and the taste will be pungent; if the moisture content is too low, the combustion speed of cut tobacco will be too slow and the taste will become dry. Therefore, when manufacturing and storing tobacco products, it is necessary to control the moisture content of cut tobacco to ensure the quality and taste of tobacco products. In order to realize the rewetting and drying process of cut tobacco, currently, the steam heating method is mainly adopted, using a gas boiler to generate high-temperature steam and hot air to realize the humidification and drying of cut tobacco. This method has extremely high energy consumption and consumes a large amount of natural gas and pure water. The above problems need to be solved urgently. Content of the Utility Model
[0003] The utility model discloses a cut tobacco humidifying and warming device, aiming to solve the technical problems existing in the prior art.
[0004] The utility model adopts the following technical solutions:
[0005] A cut tobacco humidifying and warming device, which comprises a steam generating device and an ejector; the steam generating device comprises a heat medium supply device, a heat exchanger, a flash tank and a circulation pump; the heat medium supply device is used to provide a high-temperature medium for the heat exchanger; the low-temperature medium inlet of the heat exchanger is communicated with the outlet of the circulation pump, and the low-temperature medium outlet of the heat exchanger is communicated with the inlet of the flash tank; the vapor-phase outlet of the flash tank is communicated with the steam inlet of the ejector, and the liquid-phase outlet is communicated with the inlet of the circulation pump; the ejector has a cut tobacco inlet and a mixture outlet, and the cut tobacco entering from the cut tobacco inlet is mixed with steam in the ejector and then output from the mixture outlet.
[0006] In the cut tobacco humidifying and warming device of the utility model, the heat medium supply device comprises a refrigeration compressor, a throttling device and an evaporator; the outlet of the refrigeration compressor is communicated with the high-temperature medium inlet of the heat exchanger; the high-temperature medium outlet of the heat exchanger is communicated with the inlet of the throttling device; the outlet of the throttling device is communicated with the inlet of the evaporator; the outlet of the evaporator is communicated with the inlet of the refrigeration compressor.
[0007] In the tobacco shred humidifying and heating device of the present utility model, the evaporator is an air-cooled evaporator.
[0008] In the tobacco shred humidifying and heating device of the present utility model, the throttling device is a thermostatic expansion valve.
[0009] In the tobacco shred humidifying and heating device of the present utility model, the steam generating device further includes a steam compressor; the inlet of the steam compressor is communicated with the vapor outlet, and the outlet is communicated with the steam inlet of the ejector.
[0010] In the tobacco shred humidifying and heating device of the present utility model, the steam compressor is an oil-free variable-frequency compressor.
[0011] In the tobacco shred humidifying and heating device of the present utility model, a tobacco shred storage tank is further included;
[0012] The discharge port of the tobacco shred storage tank is communicated with the tobacco shred inlet on the ejector.
[0013] In the tobacco shred humidifying and heating device of the present utility model, the discharge port of the tobacco shred storage tank is in a funnel-shaped structure.
[0014] The technical solution adopted by the present utility model can achieve the following beneficial effects:
[0015] The present utility model mainly provides a tobacco shred humidifying and heating device. Based on the method of cooperating a heat exchanger with a flash tank, water is heated in the heat exchanger and then transported to the flash tank. After the high-temperature water enters the flash tank, since the pressure in the flash tank is lower than the saturated vapor pressure at the temperature of the high-temperature water, the high-temperature water undergoes flash evaporation to form a steam-water mixture. Among them, the steam is output from the vapor outlet, and the liquid phase flows out from the liquid phase outlet. Since the high-temperature water does not undergo a phase change in the heat exchanger and its heat transfer amount is relatively low, therefore, compared with the method of generating steam by a steam boiler in the prior art, the method of generating steam by the heat exchanger cooperating with the flash tank in the present utility model has lower energy consumption and is more energy-saving; and the method of using an ejector to mix steam with tobacco shreds for humidifying and heating, compared with the existing method of using a steam nozzle to humidify and heat the tobacco shreds on the conveyor belt, the mixing of tobacco shreds and steam in the ejector 2 is more uniform, which can improve the steam utilization efficiency, reduce steam consumption, and reduce the amount of pure water used. Description of the Drawings
[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the description of the embodiments. The drawings form a part of the present utility model. The schematic embodiments of the present utility model and their descriptions explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:
[0017] Figure 1 is a structural diagram of a tobacco shred humidifying and heating device of the present utility model;
[0018] Figure 2 This is a structural diagram of an ejector of a tobacco shred humidifying and warming device of the present utility model.
[0019] Explanation of reference numerals in the drawings:
[0020] 1. Steam generating device; 11. Heat medium supply device; 111. Refrigeration compressor; 112. Throttling device; 113. Evaporator; 12. Heat exchanger; 121. Low-temperature medium inlet; 122. Low-temperature medium outlet; 123. High-temperature medium inlet; 124. High-temperature medium outlet; 13. Flash tank; 131. Inlet; 132. Vapor phase outlet; 133. Liquid phase outlet; 14. Circulation pump; 15. Steam compressor; 2. Ejector; 21. Steam inlet; 22. Tobacco shred inlet; 23. Mixture outlet; 3. Tobacco shred storage tank. Detailed implementation manners
[0021] To make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below in conjunction with specific embodiments of the present utility model and the corresponding drawings. In the description of the present utility model, it should be noted that the term "or" is generally used in the sense of including "and / or" unless otherwise clearly specified in the content.
[0022] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a magnetic connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations. In addition, in the description of this application, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.
[0023] Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.
[0024] To solve the problems existing in the prior art, the embodiments of this application provide a tobacco shred humidifying and warming device.
[0025] A tobacco shred humidifying and warming device, as Figure 1 and 2As shown in the figure, it includes a steam generating device 1 and an ejector 2; the steam generating device 1 includes a heat medium supply device 11, a heat exchanger 12, a flash tank 13 and a circulation pump 14; the heat medium supply device 11 is used to supply a high-temperature medium to the heat exchanger 12; the low-temperature medium inlet 121 of the heat exchanger 12 is connected to the outlet of the circulation pump 14, and the low-temperature medium outlet 122 of the heat exchanger 12 is connected to the inlet 131 of the flash tank 13; the vapor outlet 132 of the flash tank 13 is connected to the steam inlet 21 of the ejector 2, and the liquid outlet 133 is connected to the inlet of the circulation pump 14; the ejector 2 has a cut tobacco inlet 22 and a mixture outlet 23, and the cut tobacco entering from the cut tobacco inlet 22 is mixed with steam in the ejector 2 and then output from the mixture outlet 23. Preferably, the heat exchanger 12 is a water-cooled heat exchanger.
[0026] For the cut tobacco humidifying and heating device of the present utility model, the heat exchanger 12 is combined with the flash tank 13 to heat the water in the heat exchanger 12 and then transport it to the flash tank 13. After the high-temperature water enters the flash tank 13, since the pressure in the flash tank 13 is lower than the saturated vapor pressure at the temperature of the high-temperature water, the high-temperature water undergoes flash evaporation to form a steam-water mixture. The steam is output from the vapor outlet 132, and the liquid phase flows out from the liquid outlet 133. Since the high-temperature water does not undergo a phase change in the heat exchanger 12, its heat transfer amount is relatively low. Therefore, compared with the method of generating steam by a steam boiler in the prior art, the method of generating steam by the combination of the heat exchanger 12 and the flash tank 13 in the present utility model has lower energy consumption and is more energy-saving; and the method of mixing and humidifying and heating the cut tobacco with steam by the ejector 2, compared with the existing method of humidifying and heating the cut tobacco conveyed on the conveyor belt by a steam nozzle, the cut tobacco and steam in the ejector 2 are mixed more evenly, which can improve the steam utilization efficiency, reduce the steam consumption, and reduce the amount of pure water required to generate steam.
[0027] In some preferred embodiments, as Figure 1 shown, the steam generating device 1 further includes a steam compressor 15; the inlet of the steam compressor 15 is connected to the vapor outlet 132, and the outlet is connected to the steam inlet 21; based on the setting of the steam compressor 15, the temperature and pressure of the steam in the steam inlet 21 of the ejector 2 can be increased to meet different subsequent cut tobacco processing requirements; and based on the extraction of the vapor phase in the flash tank 13 by the steam compressor 15 to maintain a low-pressure state therein, it is beneficial to the progress of the flash evaporation process in the flash tank 13.
[0028] Preferably, the steam compressor 15 is an oil-free compressor, such as a twin-screw compressor; more preferably, the steam compressor 15 is a variable-frequency compressor, which can control the vapor pressure in the flash tank 13 and the output steam flow rate by adjusting the rotation speed of the steam compressor 15, and further adjust the pressure and temperature of the output steam.
[0029] In some preferred embodiments, as Figure 1As shown, the heat medium supply device 11 includes a refrigeration compressor 111, a throttling device 112, and an evaporator 113; the outlet of the refrigeration compressor 111 is connected to the high-temperature medium inlet 123 of the heat exchanger 12; the high-temperature medium outlet 124 of the heat exchanger 12 is connected to the inlet of the throttling device 112; the outlet of the throttling device 112 is connected to the inlet of the evaporator 113; the outlet of the evaporator 113 is connected to the inlet of the refrigeration compressor 111; based on the heat pump cycle composed of the refrigeration compressor 111, the throttling device 112, and the evaporator 113, preferably, an environmentally friendly freon is used as the refrigerant to meet the requirements of environmental protection, and heat is provided for the heat exchanger 12 in the form of a heat pump cycle. Compared with the heating method of a gas boiler, the heating efficiency is higher, and the energy consumption can be reduced. Preferably, the evaporator 113 is an air-cooled evaporator; the throttling device 112 is a thermostatic expansion valve.
[0030] In some preferred embodiments, as Figure 1 shown, it further includes a cut tobacco storage tank 3; the discharge port of the cut tobacco storage tank 3 is connected to the cut tobacco inlet 22 on the ejector 2; preferably, the discharge port of the cut tobacco storage tank 3 is located vertically above the cut tobacco inlet 22 on the ejector 2 to reduce the conveying resistance during the process of the cut tobacco entering the cut tobacco inlet 22 on the ejector 2 from the discharge port of the cut tobacco storage tank 3; more preferably, the discharge side of the cut tobacco storage tank 3 is in a funnel-shaped structure.
[0031] The embodiments of the present invention have been described above in conjunction with the accompanying drawings. However, the present invention is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present invention, those of ordinary skill in the art can also make many forms without departing from the purpose of the present invention and the scope protected by the claims, and all of them belong to the protection scope of the present invention.
Claims
1. A tobacco humidification and temperature increasing device, characterized in that: It includes a steam generating device and an ejector; The steam generating device comprises a heat medium supply device, a heat exchanger, a flash tank and a circulation pump; The heat medium supply device is used to provide high-temperature medium to the heat exchanger; The low-temperature medium inlet of the heat exchanger is connected to the outlet of the circulation pump, and the low-temperature medium outlet of the heat exchanger is connected to the inlet of the flash tank; The vapor phase outlet of the flash tank is connected to the steam inlet of the ejector, and the liquid phase outlet is connected to the inlet of the circulation pump; The ejector has a tobacco inlet and a mixture outlet. The tobacco entering from the tobacco inlet is mixed with steam in the ejector and then output from the mixture outlet.
2. The tobacco humidifying and heating device according to claim 1, characterized in that: The heat medium supply device includes a refrigeration compressor, a throttling device and an evaporator; The outlet of the refrigeration compressor is connected to the high-temperature medium inlet of the heat exchanger; The high temperature medium outlet of the heat exchanger is connected to the inlet of the throttling device; The throttling device outlet is connected to the evaporator inlet; The evaporator outlet is connected to the refrigeration compressor inlet.
3. The tobacco humidifying and heating device according to claim 2, characterized in that: The evaporator is an air-cooled evaporator.
4. The tobacco humidifying and heating device according to claim 2, characterized in that: The throttling device is a thermal expansion valve.
5. The tobacco humidifying and heating device according to claim 1, characterized in that: The steam generating device further comprises a steam compressor; The steam compressor inlet is connected to the steam phase outlet, and the outlet is connected to the steam inlet of the ejector.
6. The tobacco humidification and temperature increasing device according to claim 5, characterized in that: The steam compressor is an oil-free variable frequency compressor.
7. The tobacco humidification and temperature increasing device according to claim 1, characterized in that: Also included are tobacco storage jars; The discharge port of the tobacco storage tank is connected to the tobacco inlet on the ejector.
8. The tobacco humidification and temperature increasing device according to claim 7, characterized in that: The discharge port of the tobacco storage tank is a funnel-shaped structure.