DHA algal oil deodorization structure

Abstract

The scheme discloses a DHA algal oil deodorization structure. The scheme is characterized in that an oil pretreatment end is arranged on the workbench, the oil pretreatment end is connected with a deodorization tower and a valve mounting port, the deodorization tower is connected with an oil path and a gas path, the oil pretreatment end heats the oil twice, and a heat-sensitive sensor is arranged on an oil inlet of the deodorization tower. The deodorization structure provided by the scheme controls the temperature range of the heat medium, heats the oil through twice heat transfer of the heat medium, reduces the temperature difference between the oil and the heat medium in the heating process, controls the oil temperature, avoids the loss of nutritional ingredients and the generation of harmful substances caused by high temperature, guarantees the stability of the oil through low temperature, and prolongs the shelf life of the oil.

Description

Technical Field

[0001] This solution relates to the field of oil processing equipment technology, and in particular to a DHA algal oil deodorization structure. Background Technology

[0002] DHA algal oil is a type of oil rich in docosahexaenoic acid (DHA) extracted from algae, and it has wide applications in food, health products, and pharmaceuticals. Deodorization is a crucial step in the production of DHA algal oil, aiming to remove off-odors and volatile impurities, thereby improving the quality and flavor of the oil.

[0003] In the deodorization process of oils, steam is injected from the small-diameter end, creating a low pressure that draws in the oil. It is then ejected from the large-diameter end, causing the oil and steam to mix vigorously and achieve effective contact. The steam impacts the top cover or baffle cap, enhancing the turbulence effect, increasing the oil's diffusion surface area, and allowing the odor components in the oil to be carried away by the steam, thus achieving the deodorization purpose.

[0004] Currently, traditional methods for deodorizing DHA algal oil have several problems. Simple heating and distillation methods result in low deodorization efficiency, and some deodorization equipment is prone to overheating during operation due to inadequate structural design and temperature control. Excessive temperatures not only cause the oxidation and decomposition of nutrients such as DHA, reducing the nutritional value and quality of the algal oil, but may also lead to oil deterioration, producing unpleasant color and odor, thus affecting the product's market acceptance.

[0005] Therefore, a deodorization structure is needed that can control the deodorization of DHA algal oil at low temperatures. Summary of the Invention

[0006] To address the aforementioned issues, this solution provides a DHA algal oil deodorization structure.

[0007] To achieve the above objectives, the technical solution adopted in this solution is: a DHA algal oil deodorization structure, which includes a deodorization tower and a valve installation port integrated in the workbench. The deodorization tower is connected to the oil circuit and the gas circuit. The oil flows into the deodorization tower after passing through the oil pretreatment end. The oil pretreatment end heats the oil twice. A thermal sensor is installed at the oil inlet of the deodorization tower.

[0008] Furthermore, the grease pretreatment end includes a first heating end and a second heating end, which respectively transfer heat to the grease through pipelines through which heat medium flows.

[0009] Furthermore, the oil inlet pipes at both ends of the oil pretreatment end are respectively connected to the raw oil tank and the deodorization tower.

[0010] Furthermore, an oil inlet valve, an oil pump, and a flow meter are installed on the oil inlet pipe between the raw material oil tank and the oil pretreatment end.

[0011] Furthermore, the oil inlet pipe is connected to the upper end of the deodorization tower; Furthermore, the deodorization tower has a first air inlet pipe connected to its lower side, a first air outlet pipe connected to its top, and a mammoth pump at its bottom.

[0012] Furthermore, a level gauge and a second vent pipe are installed above the mammoth pump.

[0013] Furthermore, the bottom of the mammoth pump is connected to an oil outlet pipe and a second air inlet pipe.

[0014] Furthermore, the oil outlet pipe is equipped with an oil outlet valve and connected to a heat exchange device and a cooling device.

[0015] In summary, this solution has the following advantages: The deodorization structure provided by this solution controls the temperature range of the heat medium, allowing the oil to be heated through two heat transfers. During the heating process, the temperature difference between the oil and the heat medium is reduced to control the oil temperature, avoiding the loss of nutrients and the generation of harmful substances caused by high temperatures. At the same time, the low temperature ensures the stability of the oil and increases its shelf life. Attached Figure Description

[0016] Figure 1 This is a structural diagram illustrating the deodorization mechanism of DHA algal oil. in: 1. Deodorization tower; 11. Mammoth pump; 12. Thermistor; 13. Oil outlet pipe; 131. Oil outlet valve; 14. First vent pipe; 15. Second vent pipe; 16. Vent; 17. Level gauge; 2. Raw material oil tank; 21. Oil inlet pipe; 211. Oil inlet valve; 212. Oil pump; 213. Flow meter; 31. First heating end; 32. Second heating end; 4. First steam device; 41. First air inlet pipe; 5. Second steam device; 51. Second air inlet pipe; 6. Heat exchange device; 7. Cooling device; 8. Oil outlet. Detailed Implementation

[0017] The present solution will be further described below with reference to the accompanying drawings and embodiments: Example 1:

[0018] A DHA algal oil deodorization structure, such as Figure 1 As shown, it includes a workbench, in which a deodorization tower 1 and a valve mounting port are integrated. The deodorization tower 1 is connected to an oil circuit and a gas circuit.

[0019] The deodorization tower 1 includes a mammoth pump 11 at the bottom and an oil inlet pipe 21 at the top. A thermistor 12 is installed at the oil inlet of the deodorization tower 1. The thermistor 12 is used to detect the oil temperature. An oil outlet pipe 13 is connected to the bottom of the mammoth pump 11.

[0020] The other end of the oil inlet pipe 21 is connected to the raw material oil tank 2, which stores the pre-treated grease. The oil inlet pipe 21 draws grease from the raw material oil tank 2 and transports it to the deodorization tower 1.

[0021] After leaving the raw material oil tank 2, the oil first passes through the oil pump 212 and flow meter 213 under the control of the oil inlet valve 211 to control the oil flow rate. Then it enters the oil pretreatment end, which includes a first heating end 31 and a second heating end 32. The first heating end 31 and the second heating end 32 are respectively connected by pipelines through which heating media flow. The oil is heated through two heat transfers. During the heating process, the temperature difference between the oil and the heating medium is reduced. In this scheme, the temperature range of the heating medium cannot be too high, so as to control the oil to enter the deodorization tower 1 at a lower temperature than in the prior art for deodorization, so as to avoid the loss of nutrients and the generation of harmful substances caused by high temperature. At the same time, the low temperature ensures the stability of the oil and increases the shelf life of the oil.

[0022] After the grease flows out from the grease pretreatment end, it flows into the deodorization tower 1 through the oil inlet pipe 21. The deodorization tower 1 has a three-layer structure. A first air inlet pipe 41 is connected to a first steam device 4 at the tower plate between the bottom one and the second layer. A first air outlet pipe 14 is connected at the top. The steam from the first air inlet pipe 41 enters the deodorization tower 1 and reacts with the grease flowing into the deodorization tower 1.

[0023] The bottom of the mammoth pump 11 is connected to a second air inlet pipe 51, which connects to a second steam device 5. The second steam pipe delivers steam to the mammoth pump 11, which fully mixes the steam with the grease, greatly increasing the contact area and contact time between the steam and the grease. This enhances the mass transfer process and improves the efficiency of the steam in removing odorous substances, thereby better achieving the purpose of deodorizing the grease.

[0024] The steam flow method within the mammoth pump 11 in this design differs from existing technologies. In this design, the steam mixed with grease in the mammoth pump 11 does not directly flow upwards into the deodorization tower 1 for reaction and then exit from the top of the deodorization tower 1. Instead, a second exhaust pipe 15 is installed above the mammoth pump 11. This second exhaust pipe 15 is a vacuum pipe, through which steam is directly discharged. The steam in the deodorization tower 1 is supplied separately through the first inlet pipe 41. The steam supply method provided in this design avoids any media that may be present in the steam supplied upwards from the mammoth pump 11 from entering the deodorization tower 1. Furthermore, since the deodorization tower 1 and the mammoth pump 11 have different operating rhythms and steam demand characteristics, a separate steam pipeline can avoid mutual interference in steam usage. At the same time, an independent steam pipeline facilitates adjustments based on the actual needs of the deodorization tower 1 and the mammoth pump 11.

[0025] The gases from the first exhaust pipe 14 and the second exhaust pipe 15 converge and are discharged from the device through the exhaust port 16.

[0026] A level gauge 17 is installed above the mammoth pump 11. The level gauge 17 cooperates with the oil inlet valve 211 on the oil inlet pipe 21. When the grease reaches the controlled height, the oil inlet valve 211 stops the oil supply. By controlling the grease level, the residence time of the grease is adjusted. The residence time can be controlled between 30 and 120 minutes. The longer the grease stays in the mammoth pump 11, the more sufficient time it has to mix, and the more effectively odor-causing substances in the grease can be removed. In this embodiment, the grease stays near the mammoth pump 11 for 100 minutes.

[0027] The bottom of the mammoth pump 11 is connected to the oil outlet pipe 13. The oil is released by opening the oil outlet valve 131. The oil undergoes oil-oil exchange through the heat exchange device 6 to achieve heat recovery. It is then cooled by the cooling device 7 and finally discharged from the oil outlet 8, completing the deodorization process.

[0028] Further explanation based on its usage mechanism: S1, Oil Inlet The oil enters from the raw material oil tank 2 through the oil inlet pipe 21, and first passes through the oil pump 212 and flow meter 213 under the control of the oil inlet valve 211, and then flows into the oil pretreatment end. S2, Heating The first heating end 31 and the second heating end 32 are respectively connected to heating medium through pipelines. The grease is heated through two heat transfers, which reduces the temperature difference between the oil and the heating medium during the heating process. S3, mixed deodorization After pretreatment, the grease enters the deodorization tower 1. Steam from the first inlet pipe 41 enters the deodorization tower 1 and reacts with the grease flowing into the deodorization tower 1. The grease flows to the vicinity of the mammoth pump 11. When the grease reaches the controlled height, the oil inlet valve 211 stops the oil intake. The bottom of the mammoth pump 11 is connected to the second inlet pipe 51, which connects to the second steam device 5. The second steam pipe delivers steam to the mammoth pump 11. The mammoth pump 11 mixes the steam and grease thoroughly. After the grease stays near the mammoth pump 11 for 100 minutes, it is discharged from the deodorization tower 1 through the oil outlet pipe 13.

[0029] S4, Cooling The oil recovers heat through heat exchange device 6, is cooled by cooling device 7, and finally discharged from oil outlet 8, completing the deodorization process.

[0030] In summary, the deodorization structure provided in this application controls the temperature range of the heat medium. The oil is heated through two heat transfers of the heat medium, reducing the temperature difference between the oil and the heat medium during the heating process to control the oil temperature and avoid the loss of nutrients and the generation of harmful substances caused by high temperatures. At the same time, the low temperature ensures the stability of the oil and increases its shelf life.

[0031] The above embodiments are only for illustrating the technical concept and features of this solution, and are intended to enable those skilled in the art to understand the content of this solution and implement it accordingly. They should not be used to limit the scope of protection of this solution. All equivalent transformations or modifications made in accordance with the spirit and essence of this solution should be included within the scope of protection of this solution.

[0032] In the description of this solution, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "connection" should be interpreted broadly. For example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections or indirect connections through an intermediate medium; and they can be internal connections between two components.

[0033] Those skilled in the art can understand the specific meaning of the above terms in this solution based on the specific circumstances.

[0034] It should be understood that the above-described embodiments are merely exemplary and not restrictive. Any obvious or equivalent modifications or substitutions made by those skilled in the art regarding the above details without departing from the basic principles of this solution will be included within the scope of protection of this solution.

Claims

1. A DHA algal oil deodorization structure, comprising a deodorization tower (1) and a valve mounting port integrated within a workbench, wherein the deodorization tower (1) is connected to an oil circuit and a gas circuit, characterized in that: After passing through the oil pretreatment end, the oil flows into the deodorization tower (1). The oil pretreatment end heats the oil twice, and a thermal sensor (12) is installed at the oil inlet of the deodorization tower (1).

2. The DHA algal oil deodorization structure according to claim 1, characterized in that: The grease pretreatment end includes a first heating end (31) and a second heating end (32), which respectively transfer heat to the grease through the flow of heat medium through pipelines.

3. The DHA algal oil deodorization structure according to claim 2, characterized in that: The oil inlet pipes (21) at both ends of the oil pretreatment end are connected to the raw oil tank (2) and the deodorization tower (1), respectively.

4. The DHA algal oil deodorization structure according to claim 3, characterized in that: An oil inlet valve (211), an oil pump (212), and a flow meter (213) are installed on the oil inlet pipe (21) between the raw oil tank (2) and the oil pretreatment end.

5. The DHA algal oil deodorization structure according to claim 4, characterized in that: The oil inlet pipe (21) is connected to the upper end of the deodorization tower (1).

6. The DHA algal oil deodorization structure according to claim 5, characterized in that: The deodorization tower (1) has a first air inlet pipe (41) connected to the lower side, a first air outlet pipe (14) connected to the top, and a mammoth pump (11) at the bottom.

7. The DHA algal oil deodorization structure according to claim 6, characterized in that: A level gauge (17) and a second vent pipe (15) are installed above the mammoth pump (11).

8. The DHA algal oil deodorization structure according to claim 7, characterized in that: The mammoth pump (11) has an oil outlet pipe (13) and a second air inlet pipe (51) connected to its bottom.

9. The DHA algal oil deodorization structure according to claim 8, characterized in that: The oil outlet pipe (13) is equipped with an oil outlet valve (131) and is connected to a heat exchange device (6) and a cooling device (7).

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