Tea polyphenol concentration device

By incorporating a filter tank and jacket structure into the tea polyphenol concentration device, combined with density detection, the problem of unstable evaporation of dilute tea polyphenol raw materials was solved, achieving stable filtration and uniform concentration of tea polyphenols, and improving the concentration purity and filtration effect.

CN223760422UActive Publication Date: 2026-01-06HUBEI YULONG BIOLOGICAL ENG IND
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Patent Information

Application Number
CN202520153884.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-22
Publication Date
2026-01-06
Estimated Expiration
2035-01-22

AI Technical Summary

Technical Problem

In existing tea polyphenol concentration devices, the flow of dilute tea polyphenol raw materials is unstable during the evaporation process, resulting in uneven evaporation. High-temperature steam impacts the filter membrane, affecting the filtration effect and making it impossible to control the concentration purity.

Method used

A tea polyphenol concentration device was designed, including a tank, a concentration tank, and a filter tank. By setting the filter tank on the top of the tank, the tank and the concentration tank inside the tank form a jacket structure. It is heated by saturated steam and combined with a density detection mechanism and a level gauge. The density detection mechanism is set on the outside of the tank to ensure the filtration and heating effect.

Benefits of technology

Stable filtration and uniform evaporation of dilute tea polyphenol raw materials were achieved, improving the purity and filtration effect of concentrated tea polyphenols and ensuring the stability and controllability of the concentration process.

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Abstract

The utility model provides a tea polyphenol concentration device, which relates to the technical field of concentration devices and comprises a tank body, a steam inlet pipe and a steam outlet pipe are respectively and fixedly arranged on one side and at the bottom of the tank body, a concentration tank is fixedly arranged in the tank body, and a discharge pipe penetrating through the inside and the outside of the tank body is fixedly arranged at the bottom of the concentration tank. A depressurization mechanism is further fixedly arranged at the top of the concentration tank, a filtering tank is fixedly arranged at the top of the tank body, a filtering assembly is fixedly arranged in the filtering tank, a material conveying inlet pipe and a material conveying outlet pipe which are communicated with the inside and the outside are fixedly arranged at the feeding end and the discharging end of the filtering assembly of the filtering tank respectively, and the material conveying outlet pipe is communicated with the side wall of the concentration tank; according to the device, a tea polyphenol raw material is filtered through the filtering tank, the concentration tank fixedly arranged in the tank body is subjected to all-directional heating through primary saturated steam, and finally, the concentration degree of tea polyphenol is controlled through the density detection mechanism; therefore, the concentration effect of the tea polyphenol is ensured.
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Description

Technical Field

[0001] This utility model relates to the field of concentration device technology, and in particular to a tea polyphenol concentration device. Background Technology

[0002] Tea polyphenols are a very important natural antioxidant, mainly found in tea leaves. They possess various biological activities such as antioxidation, anti-inflammation, antibacterial properties, lowering blood lipids, and inhibiting platelet aggregation, and have wide applications in food, cosmetics, and pharmaceuticals. To efficiently extract and concentrate tea polyphenols, various concentration devices and technologies have emerged.

[0003] Chinese utility model patent CN220989739U discloses a high-efficiency concentration and extraction device for tea polyphenols, including an extraction tank. The upper end of the extraction tank is equipped with a partition, which divides the extraction tank into a filtration chamber and a concentration chamber. The upper end of the filtration chamber has a feed inlet, the left end of the partition has filter holes, and the upper end of the partition has an ultrafiltration membrane. The concentration chamber is equipped with a first guide plate, a second guide plate, a third guide plate, a fourth guide plate, and a fifth guide plate, which are staggered sequentially. The right end of the concentration chamber has a discharge port, corresponding to the right end of the fifth guide plate. The lower ends of the first, second, third, fourth, and fifth guide plates are all equipped with evaporation heating plates. This utility model provides a high-efficiency concentration and extraction device for tea polyphenols, which has a simple and efficient structure. It can first filter dilute tea polyphenol raw materials to remove impurities and filter residue, and then use evaporation heating plates to heat and evaporate the polyphenols to obtain concentrated tea polyphenols.

[0004] However, in the above structure, the concentrated dilute tea polyphenol raw material after filtration needs to be heated and evaporated sequentially through the first guide plate, the second guide plate, the third guide plate, the fourth guide plate and the fifth guide plate. The evaporation effect of the dilute tea polyphenol raw material in the downward flow is unstable, the evaporation process cannot be stably controlled, the purity of the final concentrated tea polyphenol is unpredictable, and the high temperature steam generated in the evaporation process will gather upward and impact the filter pores of the ultrafiltration membrane, thereby affecting the filtration effect of the filter pores. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the present invention provides a tea polyphenol concentration device, which solves the problems existing in the prior art.

[0006] According to an embodiment of the present invention, a tea polyphenol concentration device includes:

[0007] The tank body is fixedly horizontally arranged, and a steam inlet pipe and a steam outlet pipe are fixedly arranged on one side and the bottom of the tank body, respectively.

[0008] A concentration tank is fixedly installed inside the tank body. A discharge pipe that runs through the inside and outside of the tank body is fixedly installed at the bottom of the concentration tank. A pressure reducing mechanism is also fixedly installed at the top of the concentration tank.

[0009] A filter tank is fixedly installed on the top of the tank body. A filter assembly is fixedly installed inside the filter tank. A feed inlet pipe and a feed outlet pipe communicating with the inside and outside are fixedly installed at the feed end and the discharge end of the filter assembly, respectively. The feed outlet pipe is connected to the side wall of the concentration tank.

[0010] The density detection mechanism is fixedly installed on the outside of the tank, and penetrates the tank and communicates with the inside of the concentration tank.

[0011] The technical principle of this utility model is as follows: During concentration, the dilute tea polyphenol raw material is transported from the feed inlet pipe to the filter tank. After being filtered by the filter assembly in the filter tank, it is transported from the feed outlet pipe to the concentration tank. Then, saturated steam is turned on and enters the tank from the steam inlet pipe to heat the concentration tank. The condensed steam after heat exchange is discharged from the steam outlet pipe. The concentrated tea polyphenol liquid in the concentration tank is discharged from the discharge pipe after the density detection mechanism detects that it meets the requirements.

[0012] Furthermore, the filter assembly includes a filter cartridge, on which a plurality of filter holes are uniformly arranged.

[0013] Furthermore, one end of the filter cartridge is provided with an opening, which is fixedly connected to one end of the filter tank and communicates with the material discharge pipe.

[0014] Furthermore, a top plate is provided on the top of the tank body, and several filter tanks are fixedly arranged side by side on the top plate. The material inlet pipe has several inlet branches communicating with the filter tanks at the end away from the opening, and the material outlet pipe has several outlet branches communicating with the filter tanks at the end near the opening.

[0015] Furthermore, a feed pipe is also connected to one end of the feed inlet pipe, and a booster pump is fixedly connected between the feed pipe and the feed inlet pipe.

[0016] Furthermore, the pressure-reducing mechanism includes a pressure-reducing pipe that connects the inside and outside of the concentration tank, and a pressure-reducing valve is fixedly installed on the pressure-reducing pipe.

[0017] Furthermore, the density detection mechanism includes a densitometer, which is fixedly installed on the tank near the bottom.

[0018] Furthermore, a level gauge is fixedly installed outside the tank body, and the level gauge passes through the tank body and is connected to the inside of the concentration tank.

[0019] Furthermore, the concentration tank is fixedly connected to the top of the tank body and is coaxially arranged with the tank body.

[0020] Furthermore, a number of supporting legs are fixedly disposed downwards on the outside of the tank, and a fixing ring is also fixedly disposed around the outside of the tank, the fixing ring being fixedly connected to the supporting legs.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. By installing a filter tank at the top of the tank, the filter components inside the filter tank can filter the diluted tea polyphenol raw material. The filtered raw material then enters the concentration tank to ensure the filtration effect.

[0023] 2. By fixing the concentration tank inside the tank body, the jacket structure allows the primary saturated steam to heat the concentration tank from all directions, ensuring the heating effect of the concentration tank.

[0024] 3. By installing a density detection mechanism on the outside of the tank, the density of the concentrated tea polyphenol solution can be detected, and the concentration of tea polyphenols can be stably controlled according to actual needs. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0026] Figure 2 This is a cross-sectional structural diagram of an embodiment of the present utility model.

[0027] Figure 3 for Figure 2 Schematic diagram of the structure at point A in the middle.

[0028] Figure 4 for Figure 2 Schematic diagram of the structure at point B.

[0029] In the above attached diagram: 1. Tank body; 11. Steam inlet pipe; 12. Steam outlet pipe; 13. Discharge pipe; 131. Stop valve; 14. Support leg; 141. Fixing ring; 15. Level gauge; 16. Density meter; 17. Top plate; 171. Mounting plate; 18. Pressure reducing pipe; 181. Pressure reducing valve; 2. Filter tank; 21. Inlet pipe; 22. Booster pump; 221. Flange; 23. Material inlet pipe; 231. Inlet branch; 24. Mounting base; 25. Material outlet pipe; 251. Discharge branch; 3. Filter cartridge; 31. Filter hole; 32. Opening; 4. Concentrator. Detailed Implementation

[0030] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0031] like Figure 1 As shown in the figure, this utility model embodiment proposes a tea polyphenol concentration device, including a tank 1, which is cylindrical with a spherical lower end. Several supporting legs 14 are fixedly arranged downward on the outer wall of the tank 1, so that the tank 1 can be fixed horizontally. A fixing ring 141 is also fixedly arranged around the outside of the tank 1. The fixing ring 141 is fixedly connected to the top of the supporting legs 14 to further enhance the stability of the tank 1. A steam inlet pipe 11 and a steam outlet pipe 12 are also fixedly arranged on one side and the bottom of the tank 1, respectively, for the entry and exit of primary saturated steam.

[0032] like Figure 1 and Figure 2 As shown, in this embodiment, the tea polyphenol concentration device further includes a concentration tank 4. The concentration tank 4 is fixedly connected to the top of the tank body 1 and is coaxially arranged with the tank body 1, forming a jacket structure. The primary saturated steam enters the tank body 1 and can heat the concentration tank 4 from multiple angles. A discharge pipe 13 is fixedly installed at the bottom of the concentration tank 4, penetrating the inside and outside of the tank body 1. The discharge pipe 13 is also equipped with a stop valve 131 on the outer part of the tank body 1 to control the discharge of the tea polyphenol concentrate. The stop valve 131 can be specifically selected according to the production situation.

[0033] like Figure 1 and Figure 2 As shown, furthermore, to ensure stable pressure inside the concentration tank 4 during the concentration process, a pressure reducing mechanism is fixedly installed on the top of the concentration tank 4. In this embodiment, the pressure reducing mechanism includes a pressure reducing pipe 18, which connects the inside and outside of the concentration tank 4. A pressure reducing valve 181 is fixedly installed on the pressure reducing pipe 18. When the evaporation pressure inside the concentration tank 4 is too high, the excess secondary steam generated will be discharged from the pressure reducing pipe 18 to maintain the concentration tank 4 from overpressure.

[0034] like Figure 1 , Figure 2 and Figure 4As shown, in this embodiment, the tea polyphenol concentration device further includes a filter tank 2, which is fixedly installed on the top of the tank body 1. A filter assembly is fixedly installed inside the filter tank 2. The filter tank 2 has a feed inlet pipe 23 and a feed outlet pipe 25, which are connected to the inside and outside of the filter assembly, respectively, fixedly installed at the feed inlet and outlet ends of the filter assembly. The feed outlet pipe 25 is connected to the side wall of the concentration tank 4. In this embodiment, the filter assembly includes a filter cylinder 3, on which a plurality of filter holes 31 are evenly arranged. The diameter of the filter holes 31 is selected according to the actual situation. One end of the filter cylinder 3 is provided with an opening 32, which is fixedly connected to one end of the filter tank 2. The filter tank 2 is detachably installed near the opening 32. A mounting base 24 is provided for easy disassembly and maintenance. The mounting base 24 is bowl-shaped, and its diameter is smaller than that of the opening 32. The bottom of the mounting base 24 is connected to the feed outlet pipe 25, so that after the dilute tea polyphenol raw material enters the filter tank 2 through the feed inlet pipe 23, the filtrate enters the filter cartridge 3 through the filter holes 31, and then enters the feed outlet pipe 25 through one side of the opening 32 and enters the concentration tank 4. The dilute tea polyphenol raw material can enter the filter cartridge 3 from multiple directions in the filter tank 2, which greatly increases the filtration efficiency. At the same time, since the mounting base 24 is detachably installed in the concentration tank 4, the mounting base 24 can be disassembled periodically to clean the filter cartridge 3 and ensure the filtration effect.

[0035] like Figure 1 As shown, in this embodiment, the tea polyphenol concentration device further includes a density detection mechanism, which includes a densitometer 16, preferably an electronic densitometer 16. The densitometer 16 is fixedly installed on the outside of the tank 1 near the bottom, and the densitometer 16 penetrates the tank 1 and communicates with the inside of the concentration tank 4. It is used to detect the density of the tea polyphenol concentrate to ensure the degree of concentration of the tea polyphenol concentrate. Furthermore, a level gauge 15 is also fixedly installed on the outside of the tank 1. The level gauge 15 penetrates the tank 1 and communicates with the inside of the concentration tank 4. It is used to control the level of the tea polyphenol concentrate.

[0036] The technical principle of this utility model is as follows: During concentration, the dilute tea polyphenol raw material is transported from the feed inlet pipe 23 to the filter tank 2, and enters the filter cylinder 3 from multiple directions through the filter holes 31. Then, it enters the feed outlet pipe 25 through one side of the opening 32 and enters the concentration tank 4. Then, saturated steam is turned on, and the saturated steam enters the tank body 1 from the steam inlet pipe 11 to heat the concentration tank 4. The condensed steam after heat exchange is discharged from the steam outlet pipe 12. The concentrated tea polyphenol liquid in the concentration tank 4 is discharged from the discharge pipe 13 after the density meter 16 detects that it meets the requirements.

[0037] In this embodiment, by setting a filter tank 2 at the top of the tank body 1, and fixing a filter cartridge 3 inside the filter tank 2, the diluted tea polyphenol raw material can enter the filter cartridge 3 from multiple directions in the filter tank 2, greatly increasing the filtration efficiency. At the same time, since the mounting base 24 is detachably installed in the concentration tank 4, the mounting base 24 can be disassembled periodically to clean or repair the filter cartridge 3 in a timely manner, ensuring the filtration effect. By fixing the concentration tank 4 inside the tank body 1, and using a jacket structure, the primary saturated steam can heat the concentration tank 4 from all directions, ensuring the heating effect of the concentration tank 4. By setting a density meter 16 outside the tank body 1, the density of the concentrated tea polyphenol concentrate can be detected, and the concentration degree of tea polyphenols can be controlled according to actual needs, greatly improving the concentration effect of tea polyphenols.

[0038] like Figure 1 and Figure 2 As shown, further, according to another embodiment, the top of the tank 1 is also provided with a top plate 17, and several filter tanks 2 are fixedly arranged side by side on the top plate 17. The feed inlet pipe 23 is provided with several feed branches 231 communicating with the filter tank 2 at the end away from the opening 32, and the feed outlet pipe 25 is provided with several discharge branches 251 communicating with the filter tank 2 at the end near the opening 32. Preferably, in this embodiment, pressure gauges (not shown in the figure) are respectively provided on the feed branches 231 and the discharge branches 251 to monitor the pressure inside the filter tank 2 to prevent the filter cartridge 3 from being blocked and affecting the filtration effect. At the same time, valves (not shown in the figure) are provided on the feed branches 231 and the discharge branches 251 to control the flow direction of the tea polyphenol raw materials. The filter tank 2 can be selectively started according to the actual production situation to meet production or maintenance needs.

[0039] like Figure 1-3 As shown, further, one end of the feed inlet pipe 23 is also connected to a feed pipe 21. A booster pump 22 is fixedly connected between the feed pipe 21 and the feed inlet pipe 23 through a flange 221 to pressurize the tea polyphenol raw material to ensure the filtration effect of the concentration tank 4. A mounting plate 171 is fixedly installed on the top plate near the booster pump 22, and the booster pump 22 is fixedly installed on the mounting plate 171.

[0040] Based on the above improvements, since the filter tanks 2 are fixedly arranged side by side on the top plate 17 and each is equipped with a valve to individually control the flow direction of the tea polyphenol raw material, the filter tanks 2 can be selectively started according to the actual production situation. When some filter tanks 2 are blocked or have insufficient flow, other filter tanks 2 can be started to continue production to meet production or maintenance needs and increase the applicability of the device. At the same time, by setting up a booster pump 22, the tea polyphenol raw material can be pressurized to ensure the filtration effect of the concentration tank 4.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A tea polyphenol concentration device, characterized by, The application relates to a filter device for concentrating liquid, which comprises the following parts: a tank body (1) fixedly arranged horizontally, one side and the bottom of which are respectively fixedly provided with a steam inlet pipe (11) and a steam outlet pipe (12); a concentration tank (4) fixedly arranged in the tank body (1), the bottom of which is fixedly provided with a discharging pipe (13) penetrating the tank body (1) and the concentration tank (4); a filter tank (2) fixedly arranged on the top of the tank body (1), the inside of which is fixedly provided with a filter assembly, the filter tank (2) is respectively fixedly provided with a feeding inlet pipe (23) and a feeding outlet pipe (25) on the feeding end and the discharging end of the filter assembly, the feeding outlet pipe (25) is in communication with the side wall of the concentration tank (4); a density detection mechanism fixedly arranged outside the tank body (1) and penetrating the tank body (1) and being in communication with the inside of the concentration tank (4).

2. The tea polyphenol concentration device according to claim 1, wherein: The filter assembly comprises a filter cylinder (3), the filter cylinder (3) is uniformly provided with a plurality of filter holes (31).

3. The tea polyphenol concentration device according to claim 2, wherein: One end of the filter cylinder (3) is provided with an opening (32), the opening (32) is fixedly connected with one end of the filter tank (2) and is in communication with the feeding outlet pipe (25).

4. The tea polyphenol concentration device according to claim 3, wherein: The top of the tank body (1) is provided with a top plate (17), a plurality of filter tanks (2) are fixedly arranged on the top plate (17), the feeding inlet pipe (23) is divided into a plurality of feeding branches (231) at one end away from the opening (32) and in communication with the filter tanks (2), and the feeding outlet pipe (25) is divided into a plurality of discharging branches (251) at one end close to the opening (32) and in communication with the filter tanks (2).

5. The tea polyphenol concentration device according to claim 1, wherein: The free end of the feeding inlet pipe (23) is further provided with a feeding pipe (21), a booster pump (22) is further fixedly arranged between the feeding pipe (21) and the feeding inlet pipe (23).

6. The tea polyphenol concentration device according to claim 1, wherein: The pressure reduction mechanism comprises a pressure reduction pipe (18) in communication with the inside and outside of the concentration tank (4), the pressure reduction pipe (18) is fixedly provided with a pressure reduction valve (181).

7. The tea polyphenol concentration device according to claim 1, wherein: The density detection mechanism comprises a density meter (16) fixedly arranged close to the bottom of the tank body (1).

8. The tea polyphenol concentration device according to claim 1, wherein: The tank body (1) is further fixedly provided with a liquid level meter (15) penetrating the tank body (1) and being in communication with the inside of the concentration tank (4).

9. The tea polyphenol concentration device according to claim 1, wherein: The concentration tank (4) is fixedly connected to the top of the tank body (1) and is coaxially arranged with the tank body (1).

10. The tea polyphenol concentration device according to claim 1, wherein: A plurality of supporting legs (14) are fixedly arranged outside the tank body (1) downward, a fixing ring (141) is further fixedly arranged outside the tank body (1) and is fixedly connected with the supporting legs (14).

Citation Information

Patent Citations

  • A tea polyphenols efficient concentration and extraction device

    CN220989739U