Vacuum cooling system for tea pigment production

Abstract

The utility model discloses a vacuum cooling system for tea pigment production. The vacuum cooling system comprises a base; the rack is arranged on the base; the air inlet tank is arranged on the rack; the cooling tank is arranged on the rack, and the air inlet tank is communicated with the cooling tank; and the vacuum gas storage tank is communicated with the cooling tank. In the tea juice concentration process, the vacuum pump extracts high-temperature steam from the concentration evaporator to maintain the vacuum degree in the concentration evaporator and reduce the boiling point of tea juice in the concentration evaporator, so that the energy required by tea juice concentration is reduced. High-temperature steam pumped out of the concentration evaporator by the vacuum pump firstly enters the air inlet tank and then enters the cooling tank through the air inlet tank to be cooled, and after being fully cooled in the cooling tank, the high-temperature steam is discharged into the vacuum air storage tank and flows into the vacuum pump through the vacuum air storage tank. Through the steps, high-temperature steam can be effectively prevented from directly flowing into the vacuum pump, large temperature rise of the vacuum pump is avoided, the vacuum degree of the vacuum pump is improved, and the service life of the vacuum pump is prolonged.

Description

Technical Field

[0001] This application relates to the field of vacuum cooling technology, and in particular to a vacuum cooling system for the production of tea pigments. Background Technology

[0002] Tea pigments are a mixture of water-soluble pigments formed by the continuous oxidation and polymerization of polyphenolic compounds, primarily catechins, in tea leaves. Tea pigments have applications in the food and pharmaceutical industries. Tea pigment capsules are used to clear the head and eyes, resolve phlegm, and reduce fat, and are indicated for symptoms such as dizziness, chest tightness and pain, hyperlipidemia, coronary heart disease, angina pectoris, and cerebral infarction caused by phlegm and blood stasis. The production method for tea pigments involves using tea leaves as raw material, followed by decoction extraction, alkalization concentration, reflux extraction, and precipitation to obtain tea pigment crystals.

[0003] During the alkalization and concentration process, it is necessary to reduce the vacuum level inside the evaporator to lower the boiling point of the tea juice inside. However, while maintaining the vacuum level inside the evaporator, the high-temperature steam inside the evaporator is directly drawn into the vacuum pump, causing a significant temperature rise in the vacuum pump and affecting its vacuum level and service life.

[0004] Therefore, it is necessary to propose a vacuum cooling system for tea pigment production to avoid large temperature rises from the vacuum pump, which has become an important technical problem that urgently needs to be solved. Utility Model Content

[0005] This application provides a vacuum cooling system for tea pigment production, aiming to solve the problem in the prior art where, during the process of maintaining the vacuum level inside the evaporator, high-temperature steam inside the evaporator is directly drawn into the vacuum pump, resulting in a large temperature rise in the vacuum pump and affecting the vacuum level and service life of the vacuum pump.

[0006] To achieve the above objectives, this application proposes a vacuum cooling system for tea pigment production, comprising: a base; a frame, the frame being disposed on the base; an air inlet tank, the air inlet tank being disposed on the frame; a cooling tank, the cooling tank being disposed on the frame, the air inlet tank being connected to the cooling tank; and a vacuum storage tank, the vacuum storage tank being connected to the cooling tank.

[0007] In some embodiments, the device further includes a silencer connected to a vacuum storage tank.

[0008] In some embodiments, the system further includes a water storage tank connected to a cooling tank.

[0009] In some embodiments, it further includes: a cooling channel, a portion of which is located inside the cooling tank; and a water pool, the cooling channel connecting to the water pool.

[0010] In some embodiments, the system further includes: a cooling tower mounted on a frame, the cooling tower being connected to a water tank, and the cooling tower being connected to a cooling channel.

[0011] In some embodiments, it also includes:

[0012] Cooling pump, which is connected to the cooling tower.

[0013] This application proposes a vacuum cooling system for tea pigment production, comprising: a base; a frame mounted on the base; an inlet tank mounted on the frame; a cooling tank mounted on the frame, connected to the inlet tank; and a vacuum storage tank connected to the cooling tank. During tea concentration, a vacuum pump extracts high-temperature steam from the evaporator to maintain the vacuum level within the evaporator, lowering the boiling point of the tea juice and thus reducing the energy required for concentration. The high-temperature steam extracted from the evaporator first enters the inlet tank, then flows into the cooling tank for cooling. After thorough cooling in the cooling tank, the steam is discharged into the vacuum storage tank and then flows into the vacuum pump. These steps effectively prevent high-temperature steam from directly flowing into the vacuum pump, avoiding a significant temperature rise and improving the vacuum level and service life of the pump. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0015] Figure 1 This is a schematic diagram of a vacuum cooling system for producing tea pigments according to one embodiment of this application.

[0016] In the diagram: 1. Base; 2. Silencer; 3. Vacuum storage tank; 4. Water storage tank; 5. Cooling tank; 6. Cooling channel; 7. Frame; 8. Air inlet tank; 9. Cooling tower; 10. Cooling pump; 11. Water pool. Detailed Implementation

[0017] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0018] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0019] It should also be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component present. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component present.

[0020] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0021] See Figure 1 As shown, this application proposes a vacuum cooling system for tea pigment production, comprising: a base 1; a frame 7, the frame 7 being disposed on the base 1; an air inlet tank 8, the air inlet tank 8 being disposed on the frame 7; a cooling tank 5, the cooling tank 5 being disposed on the frame 7, the air inlet tank 8 being connected to the cooling tank 5; and a vacuum storage tank 3, the vacuum storage tank 3 being connected to the cooling tank 5.

[0022] The base 1 and the frame 7 form the structural basis of a vacuum cooling system for tea pigment production. Other structures in the vacuum cooling system for tea pigment production are directly or indirectly connected to the base 1 or the frame 7.

[0023] Among them, the air inlet tank 8, the cooling tank 5 and the vacuum storage tank 3 constitute the core equipment of a vacuum cooling system for tea pigment production. During the process of the vacuum pump drawing high-temperature steam from the evaporator to maintain the vacuum level inside the evaporator, the high-temperature steam first enters the air inlet tank 8, and then enters the cooling tank 5 from the air inlet tank 8. After being fully cooled in the cooling tank 5, the high-temperature steam is discharged into the vacuum storage tank 3 and flows into the vacuum pump from the vacuum storage tank 3.

[0024] Specifically, during the tea concentration process, a vacuum pump extracts high-temperature steam from the evaporator to maintain the vacuum level within the evaporator, lowering the boiling point of the tea and thus reducing the energy required for concentration. The high-temperature steam extracted from the evaporator first enters the inlet tank 8, then flows from the inlet tank 8 into the cooling tank 5 for cooling. After being fully cooled in the cooling tank 5, the high-temperature steam is discharged into the vacuum storage tank 3 and then flows into the vacuum pump. These steps effectively prevent high-temperature steam from directly flowing into the vacuum pump, avoiding a significant temperature rise and improving the vacuum level and lifespan of the pump.

[0025] In detail, the air inlet of the air inlet tank 8 is connected to the evaporator via a pipe. A solenoid valve is installed on the pipe connecting the air inlet of the air inlet tank 8 and the evaporator. The air outlet of the air inlet tank 8 is connected to the air inlet of the cooling tank 5 via a pipe. A solenoid valve is installed on the pipe connecting the air outlet of the air inlet tank 8 and the air inlet of the cooling tank 5. The air outlet of the cooling tank 5 is connected to the air inlet of the vacuum storage tank 3 via a pipe. A solenoid valve is installed on the pipe connecting the air outlet of the cooling tank 5 and the air inlet of the vacuum storage tank 3. The air outlet of the vacuum storage tank 3 is connected to the vacuum pump via a pipe. The preferred power of the vacuum pump motor is 22kW.

[0026] See Figure 1 As shown, in some embodiments, the silencer 2 is connected to the vacuum storage tank 3. The silencer 2 is used to eliminate noise generated by airflow. The silencer 2 in this application is a mature prior art. The silencer 2 can be a resistive silencer 2, a reactive silencer 2, or a resistive composite silencer 2. No specific limitation is made on the type and specific structure of the silencer 2 here.

[0027] In this embodiment, the outlet of the vacuum storage tank 3 is connected to the inlet of the muffler 2 through a pipe. A solenoid valve is installed on the connecting pipe between the outlet of the vacuum storage tank 3 and the inlet of the muffler 2. The outlet of the muffler 2 is connected to the vacuum pump through a pipe. A solenoid valve is installed on the connecting pipe between the outlet of the muffler 2 and the vacuum pump.

[0028] See Figure 1 As shown, in some embodiments, it further includes a water storage tank 4, which is connected to a cooling tank 5. A steam trap is provided at the bottom of the cooling tank 5, and the steam trap is connected to the water storage tank 4 via a pipe. After the high-temperature steam is cooled, some of the water condenses upon contact with the cold surface, and the resulting water flows from the steam trap into the water storage tank 4 for storage. Preferably, the cooling tank 5 is provided with a pressure relief port.

[0029] See Figure 1As shown, in some embodiments, it further includes: a cooling channel 6, partly located inside the cooling tank 5; cooling water flows through the cooling channel 6, thereby carrying away the heat of the high-temperature steam inside the cooling tank 5, and rapidly cooling the high-temperature steam inside the cooling tank 5. A water tank 11 is connected to the cooling channel 6. Cooling water flows from the water tank 11 into the cooling channel 6. Preferably, a drive pump is also provided to drive the cooling water in the water tank 11 into the cooling channel 6 and along the cooling channel 6.

[0030] See Figure 1 As shown, in some embodiments, it further includes a cooling tower 9, which is mounted on the frame 7, connected to a water tank 11, and connected to a cooling channel 6. After absorbing heat from the high-temperature steam, the cooling water flows out of the cooling channel 6 and into the cooling tower 9 for cooling. After the temperature of the cooling water drops, it flows back into the water tank 11, forming a cooling water circulation. The cooling tower 9 is a mature prior art, and its structure is not specifically limited here.

[0031] See Figure 1 As shown, in some embodiments, a cooling pump 10 is also included, which is connected to a cooling tower 9. During the decoction extraction, alkalization concentration, and reflux extraction processes in tea pigment production, a cooling tank 5 and a cooling channel 6 are required. Water flowing out of the cooling channel 6 is pumped into the cooling tower 9 by the corresponding cooling pump 10, cooled in the cooling tower 9, and then flows back into the water tank 11. Corresponding drive pumps are also provided during the decoction extraction, alkalization concentration, and reflux extraction processes to drive the cooling water in the water tank 11 into the cooling channel 6 and along the cooling channel 6.

[0032] In this application, all solenoid valves are controlled via a control terminal or manually to ensure the stable operation of the reflux equipment. The control terminal is a PLC or CPU. All connections in this application are achieved through pipelines.

[0033] The above description is only a part or preferred embodiment of this application. Neither the text nor the drawings should limit the scope of protection of this application. All equivalent structural transformations made using the content of this application's specification and drawings under the overall concept of this application, or direct / indirect applications in other related technical fields, are included within the scope of protection of this application.

Claims

1. A vacuum cooling system for tea pigment production, characterized in that, include: Base (1); A frame (7) is mounted on the base (1); An air inlet tank (8) is mounted on the frame (7); Cooling tank (5), the cooling tank (5) is disposed on the frame (7), and the air inlet tank (8) is connected to the cooling tank (5); Vacuum storage tank (3), which is connected to the cooling tank (5).

2. The vacuum cooling system for tea pigment production according to claim 1, characterized in that, Also includes: A silencer (2) is connected to the vacuum storage tank (3).

3. The vacuum cooling system for tea pigment production according to claim 1, characterized in that, Also includes: Water storage tank (4), which is connected to the cooling tank (5).

4. The vacuum cooling system for tea pigment production according to claim 1, characterized in that, Also includes: Cooling channel (6), part of which is located inside the cooling tank (5); Water tank (11), the cooling channel (6) is connected to the water tank (11).

5. A vacuum cooling system for tea pigment production according to claim 4, characterized in that, Also includes: A cooling tower (9) is mounted on the frame (7), the cooling tower (9) is connected to the water tank (11), and the cooling tower (9) is connected to the cooling channel (6).

6. A vacuum cooling system for tea pigment production according to claim 5, characterized in that, Also includes: Cooling pump (10), which is connected to cooling tower (9).

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