Efficient and energy-saving coffee evaporation and concentration integrated equipment

Abstract

The invention relates to the field of espresso coffee liquid production and processing, in particular to efficient and energy-saving coffee evaporation and concentration integrated equipment. Comprising an extracting solution storage tank, an evaporation and concentration tank arranged on one side of the extracting solution storage tank, a concentrated solution storage tank arranged on one side of the evaporation and concentration tank, a preheating unit arranged between the extracting solution storage tank and the evaporation and concentration tank, a circulating unit arranged between the evaporation and concentration tank and the preheating unit, and a cooling water storage tank arranged on the preheating unit, low-temperature and low-pressure water vapor generated in the evaporation and concentration tank is compressed into high-temperature and high-pressure water vapor through the compressor, and a coffee extracting solution entering the evaporation and concentration tank from the plate heat exchanger is preheated to the temperature exceeding 25 DEG C; the coffee extracting solution can be evaporated and concentrated after entering the evaporation and concentration tank, meanwhile, energy consumption caused by reheating of the coffee extracting solution is avoided, and the energy utilization efficiency is remarkably improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of concentrated coffee liquid production and processing, and particularly relates to a high-efficiency and energy-saving coffee evaporation and concentration integrated equipment. BACKGROUND

[0002] Compared with traditional coffee powder brewing, the concentrated coffee liquid has stronger solubility, less flavor loss during production, preserved coffee aroma and flavor, high flavor stability after packaging, and can maintain consistent flavor and stable concentration for a long time. Consumers can adjust the brewing concentration as needed, and the internal ingredients are more easily dissolved, releasing more flavor substances in the same brewing time, with high utilization rate and rich taste.

[0003] In industrial production, multi-effect evaporation concentration method is often used for the production of concentrated coffee liquid. The next effect coffee liquid is heated by the waste heat of secondary steam, realizing step-by-step utilization of steam heat, improving energy utilization efficiency, reducing energy consumption, and obtaining concentrated coffee liquid with higher concentration. However, when the number of effects increases, the heat transfer temperature difference loss of each effect increases, the steam utilization rate decreases, resulting in a decrease in the productivity of the equipment. At the same time, the components in the coffee liquid are prone to scale on the inner wall of the heating pipeline, affecting the heat transfer effect and reducing the evaporation efficiency. SUMMARY

[0004] In view of the above or the problem in the prior art that the number of effects increases, the heat transfer temperature difference loss of each effect increases, the steam utilization rate decreases, resulting in a decrease in the productivity of the equipment, and at the same time, the components in the coffee liquid are prone to scale on the inner wall of the heating pipeline, affecting the heat transfer effect and reducing the evaporation efficiency, the present application is proposed.

[0005] Therefore, the purpose of the present application is to provide a high-efficiency and energy-saving coffee evaporation and concentration integrated equipment.

[0006] To solve the above technical problems, the present application provides the following technical scheme: an extraction liquid storage tank, an evaporation and concentration tank arranged on one side of the extraction liquid storage tank, a concentrated liquid storage tank arranged on one side of the evaporation and concentration tank, a preheating unit arranged between the extraction liquid storage tank and the evaporation and concentration tank, a circulating unit arranged between the evaporation and concentration tank and the preheating unit, a cooling water storage tank arranged on the preheating unit, and a vacuum pump arranged on the evaporation and concentration tank; the water vapor generated in the evaporation and concentration tank is raised in temperature and pressure under the cooperation of the preheating unit and the vacuum pump, and then the coffee extraction liquid to be introduced into the evaporation and concentration tank is preheated so that the temperature of the coffee extraction liquid is greater than 25 DEG C, and the pressure in the evaporation and concentration tank is less than 1 kpa.

[0007] As a preferred scheme of the high-efficiency energy-saving coffee evaporation and concentration integrated equipment, the evaporation flow channel is arranged on the inner wall of the evaporation and concentration tank, the evaporation flow channel is spiral, and the evaporation flow channel is distributed with the electric heating wire.

[0008] As a preferred scheme of the high-efficiency energy-saving coffee evaporation and concentration integrated equipment, the gap in the middle of the evaporation flow channel is arranged as the steam exhaust cavity.

[0009] As a preferred scheme of the high-efficiency energy-saving coffee evaporation and concentration integrated equipment, the preheating unit comprises a plate heat exchanger arranged near the extraction liquid storage tank, a liquid inlet pipe arranged on the plate heat exchanger and communicated with the extraction liquid storage tank, a liquid delivery pipe arranged on the plate heat exchanger and communicated with the liquid inlet pipe, a steam pipe arranged on the plate heat exchanger, and a drain pipe arranged on the plate heat exchanger and communicated with the steam pipe.

[0010] As a preferred scheme of the high-efficiency energy-saving coffee evaporation and concentration integrated equipment, the steam pipe is provided with a compressor, and the steam pipe is communicated with the evaporation and concentration tank through the vacuum pump.

[0011] As a preferred scheme of the high-efficiency energy-saving coffee evaporation and concentration integrated equipment, the drain pipe is communicated with the cooling water storage tank.

[0012] As a preferred scheme of the high-efficiency energy-saving coffee evaporation and concentration integrated equipment, the circulating unit comprises an input pipe arranged on the evaporation and concentration tank, a circulating pump arranged on the input pipe, a circulating pipe arranged on the circulating pump, and a liquid discharge pipe arranged on the circulating pipe.

[0013] As a preferred scheme of the high-efficiency energy-saving coffee evaporation and concentration integrated equipment, the valve one is arranged on the liquid delivery pipe and connected with the input pipe.

[0014] As a preferred scheme of the high-efficiency energy-saving coffee evaporation and concentration integrated equipment, one end of the circulating pipe is communicated with the evaporation and concentration tank, the valve two is arranged on the circulating pipe and connected with the liquid discharge pipe, and one end of the liquid discharge pipe is communicated with the concentrated liquid storage tank.

[0015] As a preferred scheme of the high-efficiency energy-saving coffee evaporation and concentration integrated equipment, the corrugated groove is arranged on the inner wall of the liquid inlet pipe, and the liquid inlet pipe, the liquid delivery pipe, the input pipe, the circulating pipe and the liquid discharge pipe have the same structure.

[0016] The high-efficiency energy-saving coffee evaporation and concentration integrated equipment has the following beneficial effects: The low-pressure vacuum environment in the evaporation and concentration tank is kept between 600pa-1kp by the vacuum pump, the low-temperature and low-pressure water vapor generated in the evaporation and concentration tank is compressed into high-temperature and high-pressure water vapor by the compressor, the coffee extraction liquid entering the evaporation and concentration tank is preheated to more than 25 DEG C by the plate heat exchanger, the evaporation and concentration of the coffee extraction liquid can be started as soon as the coffee extraction liquid enters the evaporation and concentration tank, the concentration speed is accelerated, the energy consumption caused by reheating of the coffee extraction liquid is avoided, the energy utilization efficiency is obviously improved, and the coffee liquid concentration cost is greatly reduced. The coffee extraction liquid is in a film flow state on the evaporation flow channel, and the evaporation speed is further accelerated. Meanwhile, the structure is simple, the components are tightly connected through pipelines, the layout is compact, the land occupation is small, the installation, operation and maintenance of the equipment are convenient, the needs of different production sites can be met, and the equipment can be widely applied to the coffee processing industry. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating labor.

[0018] Figure 1 It is a schematic diagram of the overall structure of the high-efficiency and energy-saving coffee evaporation and concentration integrated equipment.

[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the evaporation and concentration tank of the high-efficiency and energy-saving coffee evaporation and concentration integrated equipment.

[0020] Figure 3 It is a schematic diagram of the cross-sectional structure of the liquid inlet pipe of the high-efficiency and energy-saving coffee evaporation and concentration integrated equipment.

[0021] Figure 4 It is a schematic diagram of the front view structure of the high-efficiency and energy-saving coffee evaporation and concentration integrated equipment.

[0022] In the figure: 1, extraction liquid storage tank; 2, evaporation and concentration tank; 21, evaporation flow channel; 22, steam discharge cavity; 3, concentrated liquid storage tank; 4, preheating unit; 41, plate heat exchanger; 42, liquid inlet pipe; 421, corrugated groove; 43, liquid conveying pipe; 44, steam pipe; 441, compressor; 45, drain pipe; 5, circulating unit; 51, input pipe; 52, circulating pump; 53, circulating pipe; 54, liquid discharge pipe; 6, cooling water storage tank; 7, vacuum pump; 8, valve one; 9, valve two. DETAILED DESCRIPTION

[0023] In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0024] Embodiment 1, refer to Figures 1-4 For the first embodiment of the present application, the embodiment provides a high-efficiency energy-saving coffee evaporation and concentration integrated equipment, which comprises an extraction liquid storage tank 1 for storing coffee extraction liquid, a evaporation and concentration tank 2 arranged on one side of the extraction liquid storage tank 1 for evaporating and concentrating the coffee extraction liquid entering the evaporation and concentration tank 2, a concentrated liquid storage tank 3 arranged on one side of the evaporation and concentration tank 2 for storing the evaporated concentrated coffee liquid, a preheating unit 4 arranged between the extraction liquid storage tank 1 and the evaporation and concentration tank 2 for preheating the coffee extraction liquid about to enter the evaporation and concentration tank 2 by the water vapor generated by the evaporation and concentration in the evaporation and concentration tank 2, accelerating the next evaporation and concentration action, a circulating unit 5 arranged between the evaporation and concentration tank 2 and the preheating unit 4 for driving the coffee liquid in the evaporation and concentration tank 2 to circulate, facilitating the extraction of concentrated coffee liquid with different concentrations according to the requirements, a cooling water storage tank 6 arranged on the preheating unit 4 for storing the condensed water formed by the water vapor generated by the evaporation and concentration in the evaporation and concentration tank 2, and a vacuum pump 7 arranged on the evaporation and concentration tank 2 for maintaining the vacuum low pressure state in the evaporation and concentration tank 2, so that the pressure in the evaporation and concentration tank 2 is maintained between 600pa-1kpa, at this time the boiling point of the coffee liquid is reduced, and the heat-sensitive components in the coffee liquid can be well preserved under the condition of 25-35℃. The water vapor generated in the evaporation and concentration tank 2 realizes the increase of temperature and air pressure under the cooperation of the preheating unit 4 and the vacuum pump 7, and then preheats the coffee extraction liquid about to enter the evaporation and concentration tank 2, so that the temperature of the coffee extraction liquid is greater than 25℃, and the pressure in the evaporation and concentration tank 2 is less than 1kpa.

[0025] Among them, the evaporation flow channel 21 is arranged on the inner wall of the evaporation and concentration tank 2, the evaporation flow channel 21 is spiral-shaped, which is a channel for the coffee extraction liquid flowing into the evaporation and concentration tank 2, and the evaporation flow channel 21 is distributed with electric heating wire, through the spiral-shaped arrangement, the flow path of the coffee extraction liquid is prolonged, and the evaporation and concentration speed of the coffee extraction liquid is accelerated by the heating and heat preservation effect of the electric heating wire; The bottom of the evaporation and concentration tank 2 is provided with a liquid concentration sensor for detecting the concentration of the coffee liquid after evaporation and concentration through the evaporation flow channel 21, when the concentration is not enough, the coffee extraction liquid in the evaporation and concentration tank 2 is driven by the circulating unit 5 to continue to evaporate and concentrate through the evaporation flow channel 21, until the concentration of the coffee liquid meets the requirements.

[0026] The gap in the middle of the evaporation flow channel 21 is set as a steam discharge cavity 22, which is used as a channel for the water vapor generated during the evaporation and concentration of the coffee extract to float up. The water vapor is compressed by the preheating unit 4 to increase the temperature and pressure of the water vapor, and the coffee extract passing through the preheating unit 4 is preheated. Since the temperature of the water vapor is high at this time, the coffee extract passing through the preheating unit 4 absorbs a large amount of heat from the water vapor, thereby increasing its own temperature. Then, the coffee extract enters the evaporation and concentration tank 2 through the circulation unit 5 to perform evaporation and concentration.

[0027] In summary, when the device is running, the vacuum pump 7 is started at this time to reduce the pressure inside the evaporation and concentration tank 2, so that the pressure inside the evaporation and concentration tank 2 is maintained at 600pa-1kpa. At this time, the coffee extract in the extraction liquid storage tank 1 is connected to the evaporation and concentration tank 2 through the preheating unit 4. After the coffee extract enters the evaporation and concentration tank 2, it flows through the evaporation flow channel 21. At this time, the electric heating wire on the evaporation flow channel 21 generates heat to heat the flowing coffee extract. Since the pressure inside the evaporation and concentration tank 2 is maintained at 600pa-1kpa at this time, the coffee liquid can be evaporated at a low temperature under the current environment when the temperature reaches 25-35℃. At the same time, the coffee extract flowing through the evaporation flow channel 21 can be uniformly heated by the electric heating wire to prevent local overheating of the coffee extract. When the temperature of the coffee extract exceeds 25℃, the coffee extract begins to evaporate and concentrate, and the generated water vapor enters the preheating unit 4 through the steam discharge cavity 22. At this time, the preheating unit 4 collects and compresses the collected water vapor to change the low-temperature and low-pressure water vapor into high-temperature and high-pressure water vapor. The preheating unit 4 preheats the coffee extract about to enter the evaporation and concentration tank 2 to accelerate the subsequent evaporation and concentration of the next group of coffee extract in the evaporation and concentration tank 2.

[0028] Embodiment 2, refer to Figures 1-4 The second embodiment of the present application is different from the previous embodiment in that the coffee extract is preheated. Compared with embodiment 1, further, the preheating unit 4 includes a plate heat exchanger 41 arranged near the extraction liquid storage tank 1, which is used for heat exchange between the water vapor and the coffee extract about to enter the evaporation and concentration tank 2 to preheat the coffee extract. The liquid inlet pipe 42 arranged on the plate heat exchanger 41 and connected with the extraction liquid storage tank 1 is used for the coffee extract in the extraction liquid storage tank 1 to enter the plate heat exchanger 41. The liquid outlet pipe 43 arranged on the plate heat exchanger 41 and connected with the liquid inlet pipe 42 is used for the coffee extract preheated by the plate heat exchanger 41 to flow out. The steam pipe 44 arranged on the plate heat exchanger 41 is used for collecting the water vapor generated during the evaporation and concentration of the coffee extract in the evaporation and concentration tank 2. The drain pipe 45 arranged on the plate heat exchanger 41 and connected with the steam pipe 44 is used for outputting the condensed water generated after the high-temperature and high-pressure water vapor is heat exchanged.

[0029] The steam pipe 44 is provided with a compressor 441 for compressing the low-temperature and low-pressure water vapor in the evaporation and concentration tank 2 to generate high-temperature and high-pressure water vapor. The steam pipe 44 is communicated with the evaporation and concentration tank 2 through the vacuum pump 7. The steam pipe 44 can attract the rising water vapor generated during the evaporation and concentration of the coffee extract by the suction force generated by the vacuum pump 7, so as to facilitate the compressor 441 to collect the water vapor.

[0030] The drain pipe 45 is communicated with the cooling water storage tank 6, and is used to collect the cooling water flowing out of the drain pipe 45. The collected cooling water can be reused as boiler feed water or process water, so as to realize the recycling of water resources, reduce the production cost, and further improve the energy-saving effect.

[0031] The remaining structures are the same as those in Example 1.

[0032] When the coffee extract in the evaporation and concentration tank 2 is evaporated and extracted, water vapor is generated from the coffee extract, so that the pressure in the evaporation and concentration tank 2 is increased. When the pressure in the evaporation and concentration tank 2 exceeds 1 kpa, the vacuum pump 7 is started to keep the pressure in the evaporation and concentration tank 2 between 600 pa and 1 kpa. At this time, the suction force generated by the vacuum pump 7 attracts the rising water vapor, so as to drive the water vapor into the steam pipe 44. At this time, the compressor 441 is started to compress the low-temperature and low-pressure water vapor in the steam pipe 44 into high-temperature and high-pressure water vapor, which flows in the plate heat exchanger 41. At this time, the next group of coffee extract to be evaporated and concentrated in the extract liquid storage tank 1 is connected to the plate heat exchanger 41 through the liquid inlet pipe 42. At this time, the high-temperature and high-pressure water vapor heats the coffee extract entering the plate heat exchanger 41 through the plate heat exchanger 41, so that the temperature of the coffee extract in the plate heat exchanger 41 is higher than 25℃. When the evaporation and concentration of the coffee extract in the evaporation and concentration tank 2 is completed, the concentrated coffee liquid in the evaporation and concentration tank 2 is sent to the concentrated liquid storage tank 3 through the circulating unit 5. At this time, the heated coffee extract in the plate heat exchanger 41 enters the evaporation and concentration tank 2 through the cooperation of the liquid delivery pipe 43 and the circulating unit 5. At this time, the heated coffee extract flows on the evaporation flow channel 21. Since the temperature of the coffee extract is higher than the evaporation temperature in the evaporation and concentration tank 2 at this time, the coffee extract can be directly evaporated and concentrated without reheating, so as to improve the evaporation and concentration efficiency of the coffee extract. At this time, the power of the electric heating wire can be reduced, so as to reduce the energy consumption. The water vapor generated by the evaporation and concentration of the coffee extract can be used for the preheating operation of the next coffee extract, so that the heat of the water vapor is fully utilized, thereby realizing continuous evaporation and concentration operation and reducing the energy consumption of the equipment.

[0033] Example 3, refer to Figures 1-4This is the second embodiment of the present invention, differing from the previous embodiment in that the concentration of the coffee concentrate is controlled. Compared to the second embodiment, the circulation unit 5 further comprises an inlet pipe 51 disposed on the evaporation and concentration tank 2 for introducing the coffee extract into the evaporation and concentration tank 2; a circulation pump 52 disposed on the inlet pipe 51 for generating power to drive the coffee extract in the evaporation and concentration tank 2; a circulation pipe 53 disposed on the circulation pump 52 for circulating the coffee extract; and a discharge pipe 54 disposed on the circulation pipe 53 for transporting the evaporated and concentrated coffee liquid into the concentrate storage tank 3 for storage.

[0034] Among them, a valve 8 is provided on the infusion tube 43 and connected to the input tube 51 to control the connection between the infusion tube 43 and the input tube 51.

[0035] Among them, one end of the circulation pipe 53 is connected to the evaporation concentration tank 2, and a valve 2 9 is provided on the circulation pipe 53 and connected to the discharge pipe 54 for controlling the connection and disconnection of the discharge pipe 54 and the evaporation concentration tank 2. One end of the discharge pipe 54 is connected to the concentrated liquid storage tank 3 for transporting the concentrated coffee liquid after evaporation and concentration into the concentrated liquid storage tank 3 through the discharge pipe 54.

[0036] Among them, a corrugated groove 421 is provided on the inner wall of the liquid inlet pipe 42. The liquid inlet pipe 42, the liquid delivery pipe 43, the input pipe 51, the circulation pipe 53, and the discharge pipe 54 have the same structure. The corrugated groove 421 is used to increase the disturbance of the fluid when the liquid flows through, break the laminar flow state, and make the fluid more easily enter the turbulent state. Through this turbulent state, the mixing and suspension ability of the fluid is increased, thereby reducing the deposition of solid particles on the pipe wall, reducing the frequency of pipeline cleaning and maintenance, and thus reducing long-term maintenance costs. At the same time, the metal plate surface of the plate heat exchanger 41 can adopt this design, thereby increasing the turbulence of the coffee extract between the plates, improving the heat exchange efficiency, and preventing solid particles in the coffee liquid from depositing on the plate surface.

[0037] The rest of the structure is the same as that of Example 2.

[0038] In summary, when the coffee extract enters the evaporation and concentration tank 2, the valve 9 is closed to cut off the circulation pipe 53 from the liquid discharge pipe 54, the valve 8 is opened to connect the liquid delivery pipe 43 with the input pipe 51, and the circulation pump 52 is started to drive the coffee extract in the liquid delivery pipe 43 to enter the evaporation and concentration tank 2 through the input pipe 51. When the batch of coffee extract is completely in the evaporation and concentration tank 2, the valve 8 is closed to cut off the liquid delivery pipe 43 from the input pipe 51. When the coffee extract in the evaporation and concentration tank 2 is gathered at the bottom of the evaporation and concentration tank 2 through the evaporation flow channel 21, if the liquid concentration sensor detects that the concentration of the coffee liquid does not meet the requirement, the valve 9 is opened to connect the circulation pipe 53 with the evaporation and concentration tank 2, the liquid discharge pipe 54 is not connected with the circulation pipe 53, and the circulation pump 52 is started to drive the coffee extract in the evaporation and concentration tank 2 to enter the input pipe 51 through the circulation pipe 53, and then re-enter the evaporation and concentration tank 2 for evaporation and concentration. The above process is repeated until the concentration of the coffee liquid meets the requirement. Then, the valve 9 is opened to connect the circulation pipe 53, the liquid discharge pipe 54, and the evaporation and concentration tank 2, and the circulation pump 52 is started to drive the concentrated coffee liquid in the evaporation and concentration tank 2 to enter the concentrated liquid storage tank 3 for storage. The next batch of evaporation and concentration can be performed.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application but not limit the present application. Although the present application is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and all of them should be covered in the scope of the claims of the present application.

Claims

1. A highly efficient and energy-saving coffee evaporation and concentration integrated device, characterized by: The invention comprises an extracting liquid storage tank (1), an evaporation concentration tank (2) arranged on one side of the extracting liquid storage tank (1), a concentrated liquid storage tank (3) arranged on one side of the evaporation concentration tank (2), a preheating unit (4) arranged between the extracting liquid storage tank (1) and the evaporation concentration tank (2), a circulation unit (5) arranged between the evaporation concentration tank (2) and the preheating unit (4), a cooling water storage tank (6) arranged on the preheating unit (4), and a vacuum pump (7) arranged on the evaporation concentration tank (2); The water vapor generated in the evaporation concentration tank (2) is heated and pressurized in cooperation with the preheating unit (4) and the vacuum pump (7), and the coffee extract to be introduced into the evaporation concentration tank (2) is then preheated so that the temperature of the coffee extract is greater than 25° C., and the pressure in the evaporation concentration tank (2) is less than 1 kPa.

2. The high-efficiency and energy-saving integrated coffee evaporation and concentration device according to claim 1, characterized in that: An evaporation flow channel (21) is provided on the inner wall of the evaporation concentration tank (2), the evaporation flow channel (21) is spiral-shaped, and electric heating wires are distributed on the evaporation flow channel (21); A liquid concentration sensor is provided at the bottom of the evaporation concentration tank (2).

3. The high-efficiency and energy-saving integrated coffee evaporation and concentration device according to claim 2, characterized in that: A gap is generated in the middle of the evaporation flow channel (21) and is configured as a steam discharge chamber (22).

4. The high-efficiency and energy-saving integrated coffee evaporation and concentration device according to claim 3, characterized in that: The preheating unit (4) includes a plate heat exchanger (41) arranged near the extract storage tank (1), a liquid inlet pipe (42) arranged on the plate heat exchanger (41) and connected to the extract storage tank (1), a liquid delivery pipe (43) arranged on the plate heat exchanger (41) and connected to the liquid inlet pipe (42), a steam pipe (44) arranged on the plate heat exchanger (41), and a drain pipe (45) arranged on the plate heat exchanger (41) and connected to the steam pipe (44).

5. The high-efficiency and energy-saving integrated coffee evaporation and concentration device according to claim 4, characterized in that: A compressor (441) is provided on the steam pipe (44), and the steam pipe (44) is connected to the evaporation concentration tank (2) via a vacuum pump (7).

6. The high-efficiency and energy-saving integrated coffee evaporation and concentration device according to claim 5, characterized in that: The drain pipe (45) is connected to the cooling water storage tank (6).

7. The high-efficiency and energy-saving integrated coffee evaporation and concentration device according to claim 6, characterized in that: The circulation unit (5) comprises an input pipe (51) provided on the evaporation concentration tank (2), a circulation pump (52) provided on the input pipe (51), a circulation pipe (53) provided on the circulation pump (52), and a discharge pipe (54) provided on the circulation pipe (53).

8. The high-efficiency and energy-saving integrated coffee evaporation and concentration device according to claim 7, characterized in that: A valve 1 (8) is provided on the infusion tube (43) and is connected to the input tube (51).

9. The high-efficiency and energy-saving integrated coffee evaporation and concentration device according to claim 8, characterized in that: One end of the circulation pipe (53) is connected to the evaporation concentration tank (2), and a valve 2 (9) is provided on the circulation pipe (53) to connect to the discharge pipe (54), and one end of the discharge pipe (54) is connected to the concentrated liquid storage tank (3).

10. The high-efficiency and energy-saving integrated coffee evaporation and concentration device according to claim 9, characterized in that: A corrugated groove (421) is provided on the inner wall of the liquid inlet pipe (42). The liquid inlet pipe (42), the liquid delivery pipe (43), the input pipe (51), the circulation pipe (53), and the liquid discharge pipe (54) have the same structure.

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