A device for filtering orange blossom absolute
The neroli essential oil filtration device, which combines inert gas protection and rotary centrifugal filtration, solves the problem of oxidative deterioration of neroli essential oil in open environments, achieving efficient filtration and improved product quality, while also facilitating equipment maintenance.
Patent Information
- Application Number
- CN202522133089.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-09
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-10-09
AI Technical Summary
In the current production process of orange blossom essential oil, the filtration process is carried out in an open or semi-open environment, which makes the essential oil prone to oxidation and deterioration, affecting product quality and shelf life.
The neroli essential oil filter combines inert gas protection with centrifugal filtration. By replacing the air with inert gas and maintaining a slight positive pressure in a closed environment, combined with centrifugal force to accelerate the filtration process, the filter prevents the essential oil from coming into contact with oxygen.
It effectively prevents essential oils from oxidizing and deteriorating, improves product quality and production efficiency, facilitates equipment maintenance, and extends product shelf life.
Smart Images

Figure CN224672245U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of orange blossom essential oil production technology, specifically to an orange blossom essential oil filtration device. Background Technology
[0002] Neroli essential oil, a high-value natural fragrance, is highly sought after for its unique aroma and skincare benefits. However, it contains a large number of easily oxidized terpenes and active ingredients, making it extremely sensitive to factors such as light, heat, and oxygen.
[0003] During production and processing, if exposed to air, essential oils are highly susceptible to oxidation, polymerization, and other chemical reactions, leading to rancidity, discoloration, and aroma deterioration, which seriously affects their quality, value, and shelf life.
[0004] Filtration is a crucial refining step in the production of neroli essential oil, designed to remove solid impurities such as plant waxes and cell debris from the extract to obtain a clear and transparent final product. Currently, the industry commonly uses plate and frame filtration or ordinary pressure filtration, which mostly takes place in open or semi-open environments, making it impossible to avoid contact between the essential oil and air.
[0005] Therefore, we propose an orange blossom essential oil filtration device. Utility Model Content
[0006] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides an orange blossom essential oil filtration device that combines inert gas protection with rotary centrifugal filtration to efficiently filter orange blossom essential oil in a closed environment. This effectively prevents the essential oil from oxidizing and deteriorating, improves product quality and production efficiency, and can effectively solve the problems in the background technology.
[0007] (II) Technical Solution To achieve the above objectives, the technical solution adopted by this utility model is as follows: an orange blossom essential oil filtration device, comprising a workbench, a gantry support mounted on the upper part of the workbench, a filter cylinder fixedly mounted on the middle of the upper outer surface of the workbench, a discharge pipe provided at the lower end of the filter cylinder, the discharge pipe penetrating to the lower outer surface of the workbench, a cylinder cover provided on the upper part of the filter cylinder, a lifting structure mounted on the middle of the upper end of the gantry support, the lifting structure comprising a guide ring, a guide rod, a hydraulic rod, a connecting block, a connecting plate, a pressure sensor, and a support arm, connecting columns fixedly mounted between the left and right sides of the lower outer surface of the connecting plate and the left and right sides of the upper outer surface of the cylinder cover, a drive motor fixedly mounted on the middle of the upper outer surface of the cylinder cover, and a [missing information - likely a component or component] fixedly mounted on the left side of the upper end of the cylinder cover. An exhaust valve is provided. An inert gas inlet valve is fixedly installed on the right side of the upper end of the cylinder cover, and the exhaust valve extends to the lower outer surface of the cylinder cover. A pressure gauge is fixedly installed at the front end of the upper outer surface of the cylinder cover, and the lower end of the pressure gauge extends to the lower part of the cylinder cover. A feed pipe is fixedly installed at the right end of the upper outer surface of the cylinder cover, and the feed pipe extends to the lower part of the cylinder cover. An annular filter screen and a sealing plate are provided inside the filter cylinder, and the sealing plate is fixed to the lower outer surface of the annular filter screen. The annular filter screen is located in the upper part of the inner cavity of the filter cylinder. A limit ring is fixedly installed on the lower outer surface of the cylinder cover, and an annular rubber gasket is fixedly installed on the outer wall of the top of the limit ring. A drive shaft is connected to the lower end of the drive motor.
[0008] Preferably, there are two sets of guide rings, guide rods, and support arms. The cylinder of the hydraulic rod is fixed in the middle of the upper outer surface of the gantry support. The two sets of guide rings are fixed on the left and right sides of the middle of the upper outer surface of the gantry support, and the guide rod passes through the guide rings.
[0009] Preferably, the lower outer surface of the piston rod in the hydraulic rod is fixedly connected to the middle of the upper outer surface of the connecting block, the two sets of support arms are fixed on the outer surfaces of both sides of the connecting block, the guide rod is fixed on the upper outer surface of the support arm, the outer wall of the guide rod is slidably connected to the inner wall of the guide ring, and the pressure sensor is fixed between the middle of the upper outer surface of the connecting plate and the middle of the lower outer surface of the connecting block.
[0010] Preferably, the outlet of the feed pipe is located at the upper part of the annular filter cylinder.
[0011] Preferably, a coupling is provided between the drive shaft and the drive motor, the upper outer surface of the drive shaft is fixedly connected to the lower outer surface of the output shaft of the drive motor through the coupling, and a sealed bearing is provided between the drive shaft and the cylinder cover, and the drive shaft is rotatably connected to the middle of the cylinder cover through the sealed bearing.
[0012] Preferably, the lower outer surface of the drive shaft is fixedly connected to the middle of the upper outer surface of the sealing disc; the outer wall of the limiting ring is inserted into the top of the inner cavity of the filter cylinder.
[0013] (III) Beneficial Effects Compared with the prior art, this utility model provides an orange blossom essential oil filtration device, which has the following beneficial effects: 1. This neroli essential oil filtration device, through the combination of an inert gas inlet valve, an exhaust valve, a pressure gauge, and a sealing structure (limiting ring and annular rubber gasket), forms a complete inert gas protection system. Before filtration, inert gas can be introduced to replace the air in the device, and a slightly positive pressure environment is maintained throughout the filtration process, fundamentally preventing neroli essential oil from contacting oxygen. This effectively avoids rancidity, deterioration, and aroma loss of the essential oil due to oxidation during the filtration process, playing a crucial role in maintaining the natural active ingredients and color of neroli essential oil and extending the product's shelf life.
[0014] 2. This orange blossom essential oil filtration device uses a drive motor and drive shaft to drive the annular filter cylinder to rotate continuously during the filtration process. The centrifugal force generated by the rotation serves as an additional driving force, which accelerates the rate at which the essential oil passes through the filter screen and improves the filtration speed.
[0015] 3. This orange blossom essential oil filtration device adopts a lifting structure (hydraulic rod, guide rod, etc.) and a removable annular filter cylinder. After filtration, the hydraulic rod can drive the cylinder cover and the entire internal filtration unit to rise, fully exposing the annular filter cylinder, which is convenient for operators to thoroughly clean or replace the filter. This facilitates the maintenance of the equipment. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of an orange blossom essential oil filtration device according to the present invention.
[0017] Figure 2 This is a schematic diagram of the lifting structure in an orange blossom essential oil filtration device according to this utility model.
[0018] Figure 3 This is a partial structural schematic diagram of an orange blossom essential oil filtration device according to the present invention.
[0019] Figure 4 This is a side cross-sectional view of the connecting disc in an orange blossom essential oil filtration device according to this utility model.
[0020] In the diagram: 1. Workbench; 2. Filter cylinder; 3. Discharge pipe; 4. Cylinder cover; 5. Lifting structure; 6. Feed pipe; 7. Gantry support; 8. Guide ring; 9. Guide rod; 10. Hydraulic rod; 11. Connecting block; 12. Connecting disc; 13. Pressure sensor; 14. Support arm; 16. Connecting column; 17. Drive motor; 18. Drive shaft; 19. Annular filter cylinder; 20. Sealing disc; 21. Inert gas inlet valve; 22. Exhaust valve; 23. Pressure gauge; 24. Limiting ring; 25. Annular rubber gasket. Detailed Implementation
[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0022] like Figure 1-4 As shown, this utility model provides an orange blossom essential oil filtration device, including a workbench 1, with a gantry support 7 fixedly installed on the upper part of the workbench 1. A filter cylinder 2 is fixedly installed in the middle of the upper outer surface of the workbench 1, and a discharge pipe 3 is provided at the lower end of the filter cylinder 2, which passes through the workbench 1 and extends to its lower outer surface. A cylinder cover 4 is provided on the upper part of the filter cylinder 2, and a lifting structure 5 is installed in the middle of the upper end of the gantry support 7.
[0023] The lifting structure 5 includes a guide ring 8, a guide rod 9, a hydraulic rod 10, a connecting block 11, a connecting plate 12, a pressure sensor 13, and a support arm 14. There are two sets of guide rings 8, guide rods 9, and support arms 14. The cylinder of the hydraulic rod 10 is fixed to the middle of the upper outer surface of the gantry bracket 7. The two sets of guide rings 8 are fixed to the left and right sides of the middle of the upper outer surface of the gantry bracket 7, and the guide rod 9 passes through the guide rings 8. The lower end of the piston rod of the hydraulic rod 10 is fixedly connected to the middle of the upper end of the connecting block 11. The two sets of support arms 14 are fixed to the outer surfaces of both sides of the connecting block 11, and the guide rod 9 is fixed to the upper outer surface of the support arm 14. The outer wall of the guide rod 9 and the inner wall of the guide ring 8 are slidably connected to ensure the smoothness of the lifting process. The pressure sensor 13 is fixed between the middle of the upper end of the connecting plate 12 and the middle of the lower end of the connecting block 11 to monitor pressure changes during the lifting process.
[0024] Connecting posts 16 are fixedly installed between the left and right sides of the lower outer surface of the connecting plate 12 and the left and right sides of the upper outer surface of the cylinder cover 4. A drive motor 17 is fixedly installed in the middle of the upper end of the cylinder cover 4, and the lower end of the drive motor 17 is connected to a drive shaft 18 via a coupling. The drive shaft 18 and the cylinder cover 4 are rotatably connected via a sealed bearing to ensure the sealing of the drive shaft 18 during rotation. An exhaust valve 22 is fixedly installed on the left side of the upper end of the cylinder cover 4, and an inert gas inlet valve 21 is fixedly installed on the right side, with both the exhaust valve 22 and the inert gas inlet valve 21 penetrating the cylinder cover 4 to its lower part. A pressure gauge 23 is fixedly installed at the front end of the upper end of the cylinder cover 4, with the lower end of the pressure gauge 23 penetrating the cylinder cover 4 to its lower part, for monitoring the pressure inside the filter cylinder 2. A feed pipe 6 is fixedly installed at the right end of the upper end of the cylinder cover 4, penetrating the cylinder cover 4 to its lower part, with the outlet of the feed pipe 6 located at the upper part of the annular filter cylinder 19.
[0025] The filter cartridge 2 contains an annular filter screen 19 and a sealing plate 20. The sealing plate 20 is fixed to the lower outer surface of the annular filter screen 19, which is located at the upper part of the inner cavity of the filter cartridge 2. The lower end of the drive shaft 18 is fixedly connected to the middle of the upper end of the sealing plate 20, allowing the drive motor 17 to drive the annular filter screen 19 and the sealing plate 20 to rotate together via the drive shaft 18. A limiting ring 24 is fixedly installed on the lower outer surface of the cartridge cover 4, and the outer wall of the limiting ring 24 is inserted into the top of the inner cavity of the filter cartridge 2. An annular rubber gasket 25 is fixedly installed on the outer wall of the top of the limiting ring 24. When the cartridge cover 4 descends to the upper end of the filter cartridge 2, the annular rubber gasket 25 is compressed to form a seal, ensuring the airtightness of the filter cartridge 2.
[0026] Working principle: Before the filtration operation, the hydraulic rod 10 in the lifting structure 5 is operated to drive the connecting block 11 to move downward. This, along with the support arm 14, guide rod 9, connecting plate 12, and connecting column 16, causes the cylinder cover 4 to descend as a whole, allowing the annular filter cylinder 19 to descend into the interior of the filter cylinder 2. At this time, the limiting ring 24 is inserted into the top of the inner cavity of the filter cylinder 2, and the annular rubber gasket 25 is squeezed by the upper outer surface of the filter cylinder 2 to form a seal.
[0027] Close the valves in the discharge pipe 3 and the feed pipe 6, open the inert gas inlet valve 21 and the exhaust valve 22, and fill the filter cartridge 2 with inert gas (such as nitrogen). The air in the device will be discharged through the exhaust valve 22. After continuously ventilating for 3-5 minutes, close the exhaust valve 22 and continue to ventilate with a small amount of inert gas to maintain a slightly positive pressure environment of 0.01-0.05 MPa inside the filter cartridge 2, effectively preventing air backflow.
[0028] Then, the valve of the feed pipe 6 is opened, and the orange blossom essential oil raw material to be filtered is injected into the annular filter cylinder 19 through the feed pipe 6. The drive motor 17 is started, and the drive motor 17 drives the sealing plate 20 to rotate together with the annular filter cylinder 19 through the drive shaft 18. The rotation of the annular filter cylinder 19 generates centrifugal force, which accelerates the essential oil through the filter screen. Solid impurities are trapped inside the annular filter cylinder 19, and the filtered clarified essential oil passes through the annular filter cylinder 19 into the bottom of the filter cylinder 2 and is discharged through the discharge pipe 3.
[0029] During the filtration process, the pressure inside the filter cartridge 2 is monitored in real time by pressure gauge 23 to ensure a stable slightly positive pressure environment. After filtration, the drive motor 17 and the feed pipe 6 valve are closed, and the exhaust valve 22 is opened to release the internal pressure. Subsequently, the cylinder cover 4 and the internal annular filter cylinder 19 are driven to rise as a whole by hydraulic rod 10, completely exposing the annular filter cylinder 19 for thorough cleaning or replacement.
[0030] This invention effectively prevents the oxidation and deterioration of orange blossom essential oil during the filtration process by combining an inert gas protection system with a rotary centrifugal filter, thereby improving filtration efficiency and product quality. It also facilitates equipment maintenance and is suitable for high-quality production of orange blossom essential oil.
[0031] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., 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.
[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. An orange blossom essential oil filtration device, comprising a workbench (1), wherein a gantry support (7) is mounted on the upper part of the workbench (1), characterized in that: A filter cylinder (2) is fixedly installed in the middle of the upper outer surface of the workbench (1). A discharge pipe (3) is provided at the lower end of the filter cylinder (2). The discharge pipe (3) extends through to the lower outer surface of the workbench (1). A cylinder cover (4) is provided at the upper part of the filter cylinder (2). A lifting structure (5) is installed in the middle of the upper end of the gantry bracket (7). The lifting structure (5) includes a guide ring (8), a guide rod (9), a hydraulic rod (10), a connecting block (11), a connecting plate (12), a pressure sensor (13), and a support arm (14). Connecting columns (16) are fixedly installed between the left and right sides of the lower outer surface of the connecting plate (12) and the left and right sides of the upper outer surface of the cylinder cover (4). A drive motor (17) is fixedly installed in the middle of the upper outer surface of the cylinder cover (4). An exhaust valve (22) is fixedly installed on the left side of the upper end of the cylinder cover (4). An inert gas inlet valve (21) is fixedly installed on the right side of the upper end of the cylinder cover (4). The exhaust valve (22) extends to the lower outer surface of the cylinder cover (4), the inert gas inlet valve (21) extends to the lower outer surface of the cylinder cover (4), a pressure gauge (23) is fixedly installed at the front end of the upper outer surface of the cylinder cover (4), and the lower end of the pressure gauge (23) extends to the lower part of the cylinder cover (4). A feed pipe (6) is fixedly installed at the right end of the upper outer surface of the cylinder cover (4), and the feed pipe (6) extends to the lower part of the cylinder cover (4). The filter cylinder (2) The internal structure of the filter cylinder (2) is provided with an annular filter cylinder (19) and a sealing plate (20), and the sealing plate (20) is fixed on the lower outer surface of the annular filter cylinder (19). The annular filter cylinder (19) is located in the upper part of the inner cavity of the filter cylinder (2). A limiting ring (24) is fixedly installed on the lower outer surface of the cylinder cover (4). An annular rubber gasket (25) is fixedly installed on the outer wall of the top of the limiting ring (24). The lower end of the drive motor (17) is connected to a drive shaft (18).
2. The neroli essential oil filtration device according to claim 1, characterized in that: The number of guide rings (8), guide rods (9) and support arms (14) are all two sets. The cylinder of the hydraulic rod (10) is fixed in the middle of the upper outer surface of the gantry bracket (7). The two sets of guide rings (8) are fixed on the left and right sides of the middle of the upper outer surface of the gantry bracket (7). The guide rod (9) passes through the guide rings (8).
3. The neroli essential oil filtration device according to claim 2, characterized in that: The lower outer surface of the piston rod in the hydraulic rod (10) is fixedly connected to the middle of the upper outer surface of the connecting block (11). The two sets of support arms (14) are fixed on the outer surfaces of both sides of the connecting block (11). The guide rod (9) is fixed on the upper outer surface of the support arm (14). The outer wall of the guide rod (9) and the inner wall of the guide ring (8) are slidably connected. The pressure sensor (13) is fixed between the middle of the upper outer surface of the connecting plate (12) and the middle of the lower outer surface of the connecting block (11).
4. The neroli essential oil filtration device according to claim 3, characterized in that: The outlet of the feed pipe (6) is located at the top of the annular filter cylinder (19).
5. The neroli essential oil filtration device according to claim 4, characterized in that: A coupling is provided between the drive shaft (18) and the drive motor (17). The upper outer surface of the drive shaft (18) is fixedly connected to the lower outer surface of the output shaft of the drive motor (17) through the coupling. A sealed bearing is provided between the drive shaft (18) and the cylinder cover (4). The drive shaft (18) is rotatably connected to the middle part of the cylinder cover (4) through the sealed bearing.
6. The neroli essential oil filtration device according to claim 5, characterized in that: The lower outer surface of the drive shaft (18) is fixedly connected to the middle of the upper outer surface of the sealing plate (20); the outer wall of the limiting ring (24) is inserted into the top of the inner cavity of the filter cylinder (2).