Evaporation system for deodorization
By combining vacuum heating with a falling film evaporator and an automated control module, the problems of high energy consumption and low efficiency in the fragrance deodorization process have been solved, achieving a low-temperature and high-efficiency deodorization effect.
Patent Information
- Application Number
- CN202520281399.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-21
AI Technical Summary
Existing fragrance deodorization processes require high-temperature heating at room temperature and pressure, resulting in high energy consumption and low production efficiency.
The system employs vacuum heating combined with a falling film evaporator, where the material flows in a film-like manner on the inner wall of the heat exchange tubes. It utilizes the low temperature difference for evaporation and combines this with an automated control module for deodorization.
It improves the deodorization efficiency of fragrances, reduces energy consumption, avoids material denaturation caused by high temperatures, and enables continuous operation at low temperatures.
Smart Images
Figure CN223837383U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fragrance deodorization technology, specifically an evaporation system for deodorization. Background Technology
[0002] In the production of cigarette flavorings, deodorization is required. The existing process involves heating the deodorization kettle at room temperature and pressure. The flavorings evaporate when heated in the deodorization kettle, carrying away water-soluble substances. The deodorization kettle production process requires high temperature and a large amount of energy, and the evaporation time is too long, resulting in low production efficiency.
[0003] Therefore, improving the existing production system is a technical problem that needs to be solved in order to increase the deodorization production efficiency of fragrances. Utility Model Content
[0004] The problem to be solved is to improve the existing production system and increase the deodorization efficiency of fragrances.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an evaporation system for deodorization, comprising a falling film evaporator, a separation chamber, a condenser, a first storage tank, a second storage tank, a liquid recovery tank, and a vacuum pump; the falling film evaporator includes a material inlet, a shell-side heating port, a steam outlet, a liquid phase outlet, and a film-forming device; the liquid phase outlet of the falling film evaporator is connected to the first storage tank via a pipeline; the steam outlet of the falling film evaporator is connected to the condenser via the separation chamber, which is connected to the second storage tank; the liquid phase outlet of the condenser is connected to the liquid recovery tank, which is connected to the vacuum pump via a connection port; the vacuum pump is connected to each component of the system to maintain a negative pressure state in the system.
[0006] Preferably, the separation chamber is equipped with a demister to remove liquid droplets entrained in the steam.
[0007] Preferably, the shell-side heating port is connected to a low-temperature heat medium circulation system.
[0008] Preferably, the system also includes a material pump, the outlet of which is connected to the material inlet of the falling film evaporator via a pipeline.
[0009] Preferably, storage tank 1 and storage tank 2 are respectively provided with constant pressure port 1 and constant pressure port 2, and liquid recovery tank is provided with constant pressure port 3. Each constant pressure port is connected to a vacuum pump through a pipeline to maintain constant pressure in the system.
[0010] Preferably, the system is suitable for deodorization treatment in the fields of essential oils, spices or food, and the operating temperature is below 70°C.
[0011] Compared with existing technologies, this invention provides an evaporation system for deodorization, which has the following advantages: The system employs vacuum heating combined with a falling film evaporator, where the material flows in a film-like manner on the inner wall of the heat exchange tube, increasing the heat transfer area, reducing thermal resistance, and resulting in a higher heat transfer coefficient. Since the process fluid flows only under gravity, rather than being propelled by a temperature difference, low-temperature evaporation can be used, reducing energy consumption. Continuous operation under vacuum and low-temperature conditions avoids material denaturation caused by high temperatures. The deodorization efficiency is high, and the low-temperature evaporation results in low energy consumption, solving the problems of long deodorization times and low efficiency in traditional processes. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model.
[0013] Explanation of reference numerals in the attached diagram: 1. Material pump; 2. Falling film evaporator; 21. Material inlet; 22. Shell-side heating port; 23. Steam outlet; 24. Liquid phase outlet; 25. Film forming device; 3. Separation chamber; 4. Condenser; 5. Storage tank one; 51. Constant pressure port one; 6. Storage tank two; 61. Constant pressure port two; 7. Liquid recovery tank; 71. Constant pressure port three; 72. Connection port; 8. Vacuum pump. Detailed Implementation
[0014] The technical solutions of the present utility model will now be described with reference to the accompanying drawings in the embodiments of the present utility model:
[0015] To address the problems in the background art, this utility model provides an evaporation system for deodorization, including a falling film evaporator 2, a separation chamber 3, a condenser 4, a first storage tank 5, a second storage tank 6, a liquid recovery tank 7, and a vacuum pump 8; the falling film evaporator 2 includes a material inlet 21, a shell-side heating port 22, a steam outlet 23, a liquid phase outlet 24, and a film-forming device 25; the shell-side heating port 22 is connected to a low-temperature heat medium circulation system, which provides a heat source for the falling film evaporator 2, and the low-temperature heat medium circulation system includes a waste heat recovery module for recovering heat energy during the evaporation process and preheating the input material. The bottom of the falling film evaporator 2 is the liquid phase outlet 24, which is connected to the top of the storage tank 5 via a pipeline. The steam outlet 23 of the falling film evaporator 2 is connected to the condenser 4 via a separation chamber 3, and the top of the separation chamber 3 is connected to the top of the condenser 4. The separation chamber 3 is equipped with a demister to remove liquid droplets entrained in the steam. The bottom of the separation chamber 3 is connected to the storage tank 6 via a pipeline. The liquid phase outlet of the condenser 4 is connected to the top of the liquid recovery tank 7. The liquid recovery tank 7 is also equipped with a constant pressure port 71 and a connection port 72. The liquid recovery tank 7 is connected to the vacuum pump 8 via the connection port 72. The vacuum pump 8 is connected to various components of the system to maintain a negative pressure state in the system. Specifically, the storage tank 5 and the storage tank 6 are respectively equipped with a constant pressure port 51 and a constant pressure port 61. The constant pressure ports 51, 61, and 71 are connected to the vacuum pump 8 via pipelines to maintain a constant pressure in the system.
[0016] The system uses material pump 1 for feeding and discharging. The outlet of material pump 1 is connected to the material inlet 21 of falling film evaporator 2 via a pipeline. Material pump 1 is also connected to the material outlets at the bottom of storage tank 5 and storage tank 6. This system is suitable for deodorization treatment in the fields of essential oils, fragrances, or food, and operates at temperatures below 70°C.
[0017] The film-forming device 25 includes a distribution plate and a rotating scraping device. The distribution plate is used to evenly distribute the material onto the inner wall of the heat exchange tubes of the falling film evaporator 2 to form a liquid film. The rotating scraping device is configured to prevent material coking and improve heat transfer efficiency. The inner wall of the heat exchange tubes of the falling film evaporator 2 is provided with a corrugated plate or a microchannel structure to increase the evaporation area and improve heat transfer efficiency.
[0018] This utility model system can also be combined with an automation control module, which includes a temperature sensor, a pressure sensor and a PLC controller, for real-time adjustment of vacuum level, material flow rate and heat medium temperature.
[0019] In operation, material pump 1 feeds material into falling film evaporator 2. The material is added through material inlet 21 of falling film evaporator 2 and evenly distributed into each heat exchange tube by liquid distribution and film forming device 25. It then flows down the inner wall of the heat exchange tube in a uniform film. During the flow, it is heated and vaporized by the heat source of shell-side heating port 22. The generated steam enters separation chamber 3 through steam outlet 23, and the liquid phase enters storage tank 5 through liquid phase outlet 24. The steam in separation chamber 3 will be mixed with some liquid phase. The vapor and liquid are fully separated in separation chamber 3. The steam enters condenser 4 for condensation, and the liquid phase is discharged from the bottom of separation chamber 3 into storage tank 6. The condensed material in condenser 4 flows into liquid recovery tank 7. Constant pressure port 51, constant pressure port 61, and constant pressure port 71 are connected to vacuum pump 8 through pipelines to maintain constant system pressure. The materials in storage tank 5 and storage tank 6 are deodorized materials.
[0020] This utility model system lowers the boiling point of components by heating under vacuum, and uses a falling film evaporator 2 to evenly distribute the material for evaporation of light components. At the same time, the aroma is removed under negative pressure. The deodorization evaporation system solves the problems of high energy consumption and low efficiency of traditional processes through three major innovations: low temperature operation, high efficiency heat transfer and continuous operation. It is suitable for the fine production of high value-added fragrances and essential oils and has significant economic and environmental value.
[0021] The above embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
Claims
1. An evaporation system for deodorization, characterized in that: The system includes a falling film evaporator (2), a separation chamber (3), a condenser (4), a storage tank 1 (5), a storage tank 2 (6), a liquid recovery tank (7), and a vacuum pump (8). The falling film evaporator (2) includes a material inlet (21), a shell-side heating port (22), a steam outlet (23), a liquid phase outlet (24), and a film-forming device (25). The liquid phase outlet (24) of the falling film evaporator (2) is connected to the storage tank 1 (5) via a pipeline. The steam outlet (23) of the falling film evaporator (2) is connected to the condenser (4) via the separation chamber (3). The separation chamber (3) is connected to the storage tank 2 (6). The liquid phase outlet of the condenser (4) is connected to the liquid recovery tank (7). The liquid recovery tank (7) is connected to the vacuum pump (8) via a connection port (72). The vacuum pump (8) is connected to each component of the system to maintain the negative pressure state of the system.
2. The evaporation system for deodorization as described in claim 1, characterized in that: The separation chamber (3) is equipped with a demister to remove liquid droplets entrained in the steam.
3. The evaporation system for deodorization as described in claim 2, characterized in that: The shell-side heating port (22) is connected to a low-temperature heat medium circulation system.
4. The evaporation system for deodorization as described in claim 1, characterized in that: The system also includes a material pump (1), the outlet of which is connected to the material inlet (21) of the falling film evaporator (2) via a pipeline.
5. The evaporation system for deodorization as described in claim 1, characterized in that: Storage tank 1 (5) and storage tank 2 (6) are respectively equipped with constant pressure port 1 (51) and constant pressure port 2 (61), and liquid recovery tank (7) is equipped with constant pressure port 3 (71). Each constant pressure port is connected to vacuum pump (8) through pipeline to maintain constant pressure in the system.