Continuous fruit juice membrane concentration system equipment

Abstract

The utility model relates to the technical field of fruit juice concentration, and discloses continuous fruit juice membrane concentration system equipment. Comprising a clear juice tank I, a clear juice tank II, a cleaning tank, a concentration tank, a membrane dialysis water tank, a transfer pump, a raw material pump, a main booster pump group, a booster pump I, a duplex four-core filter bag filter I, a duplex four-core filter bag filter II, a blow-down valve, a pure water inlet valve, a cleaning regulating valve, a production regulating valve, an alkali adding device and an acid adding device, the first clear juice tank, the second clear juice tank, the cleaning tank, the raw material pump, the main booster pump set, the first booster pump, the membrane concentration main machine and the membrane dialysis water tank are sequentially communicated in series, and a concentrated liquid outlet of the membrane concentration main machine is communicated with the concentration tank or the cleaning tank through a three-way valve. According to the utility model, the production requirements under different process conditions can be conveniently met, the whole concentration process only consumes electric energy, does not involve phase change, does not use steam or electric heating, and is low in energy consumption and low in operation cost.

Description

TECHNICAL FIELD

[0001] The utility model relates to juice concentration technical field especially relates to a continuous juice membrane concentration system equipment. BACKGROUND

[0002] The membrane separation technology is used for continuous concentration of juice, removes water in the juice quickly, and achieves the purpose of rapid concentration. Compared with other technologies, the membrane separation technology can remove water in the juice at normal temperature, the whole process does not change phase, has low energy consumption, high speed, and low operation cost. The continuous concentration operation process can reduce the time of high-concentration juice staying on the membrane surface, reduce the membrane pollution, slow down the flux attenuation, and stably operate the whole system.

[0003] At present, common concentration systems are generally single-effect thermal concentration or multi-effect thermal concentration, the concentration process has high energy consumption, high temperature, low efficiency, and high operation cost, and needs to be matched with a steam or electric heating system. UTILITY MODEL CONTENT

[0004] In order to make up for the above shortcomings, the utility model provides a continuous juice membrane concentration system equipment, which aims at improving the problems of high energy consumption, high temperature, low efficiency, and high operation cost in the concentration process in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A continuous juice membrane concentration system equipment, comprising a clear juice tank one, a clear juice tank two, a cleaning tank, a concentration tank, a membrane dialysis water tank, a transfer pump, a raw material pump, a total booster pump group, a booster pump one, a double four-core filter bag filter one, a double four-core filter bag filter two, a blowdown valve, an inlet pure water valve, a cleaning adjusting valve, a production adjusting valve, an alkali adding device, and an acid adding device, the clear juice tank one, the clear juice tank two, the cleaning tank, the raw material pump, the total booster pump group, the booster pump one, the membrane concentration host, and the membrane dialysis water tank are sequentially connected in series, the concentrated liquid outlet of the membrane concentration host is connected with the concentration tank or the cleaning tank through a three-way valve, and the dialysate outlet of the membrane concentration host is connected with the membrane dialysis water tank or the cleaning tank through a three-way valve.

[0007] As a further description of the above technical scheme:

[0008] The system comprises a pre-membrane pressure gauge, a pre-membrane thermometer, a post-membrane pressure gauge, a temperature sensor, a pressure sensor, a liquid level sensor, a concentrated liquid flow meter, a dialysate flow meter and a control cabinet, wherein the pre-membrane pressure gauge and the pre-membrane thermometer are installed on the liquid inlet side pipeline of the membrane concentration main machine, the post-membrane pressure gauge, the temperature sensor, the pressure sensor and the concentrated liquid flow meter are installed on the concentrated liquid outlet side pipeline of the membrane concentration main machine, the dialysate flow meter is installed on the dialysate outlet side pipeline of the membrane concentration main machine, the liquid level sensor is installed at the bottom of the clear juice tank 1, the clear juice tank 2, the cleaning tank, the concentrated tank and the membrane dialysis water tank, the temperature sensor signal output end, the pressure sensor signal input end and the liquid level sensor signal input end are connected with the signal input end of the control cabinet, and the raw material pump, the total booster pump group and the booster pump 1 control input end are connected with the control output end of the control cabinet.

[0009] As a further description of the above technical solution:

[0010] A filter inlet valve is installed on the pipeline between the clear juice tank 1 liquid outlet and the raw material pump liquid inlet, an electromagnetic regulating valve and a concentrated liquid return valve are installed on the pipeline between the concentrated liquid outlet of the membrane concentration main machine and the cleaning tank liquid inlet, a membrane dialysis liquid inlet valve is arranged on the connecting pipeline between the membrane dialysis water tank liquid inlet and the dialysate outlet of the membrane concentration main machine, and the clear juice tank 1 liquid outlet and the membrane dialysis water tank liquid outlet are connected with a blowdown pipeline and are provided with a blowdown valve.

[0011] As a further description of the above technical solution:

[0012] The system further comprises an alkali adding device, an acid adding device and a double four-core filter bag filter 1, the pipeline between the cleaning tank and the double four-core filter bag filter 1 is provided with an alkali inlet and an acid inlet, the cleaning tank liquid outlet is communicated with the double four-core filter bag filter 1 liquid inlet through the raw material pump, and the control input end of the raw material pump is connected with the control output end of the control cabinet.

[0013] As a further description of the above technical solution:

[0014] A single-phase check valve is directly arranged on the double four-core filter bag filter 1 liquid outlet and the total booster pump group, the outlet of the total booster pump group is connected with the liquid inlet of the membrane concentration main machine, the first concentrated outlet of the membrane concentration main machine is connected with the inlet of the booster pump 1, and the booster pump 1 liquid outlet is connected with a blowdown pipeline and is provided with a blowdown valve.

[0015] As a further description of the above technical solution:

[0016] The second concentrated liquid outlet of the membrane concentration main machine is provided with a production regulating valve and a cleaning regulating valve, the production regulating valve and the cleaning regulating valve are connected in parallel, the production regulating valve and the cleaning regulating valve liquid outlets are connected to the concentrated tank liquid inlet through a pipeline, and the dialysate outlet is connected to the membrane dialysis water tank and the cleaning tank through a three-way valve and a pipeline.

[0017] As a further description of the above technical solutions:

[0018] The clear juice tank one, the clear juice tank two, the cleaning tank, the concentration tank, the transfer pump, the raw material pump, the total booster pump set, the booster pump one, the membrane concentration main machine and the membrane dialysis water tank are connected through 304 stainless steel pipelines, and quick mounting chucks are used between the clear juice tank one, the clear juice tank two, the cleaning tank, the concentration tank, the transfer pump, the raw material pump, the total booster pump set, the booster pump one, the membrane concentration main machine, the membrane dialysis water tank and the 304 stainless steel pipelines.

[0019] As a further description of the above technical solutions:

[0020] The membrane concentration main machine comprises a first-stage concentration device and a second-stage concentration device, the liquid inlet of the first-stage concentration device is the liquid inlet of the membrane concentration main machine, the concentrated liquid outlet of the first-stage concentration device is communicated with the liquid inlet of the second-stage concentration device, the dialysate outlets of the first-stage concentration device and the second-stage concentration device are the dialysate outlet of the membrane concentration main machine, and the concentrated liquid outlet of the second-stage concentration device is the concentrated liquid outlet of the membrane concentration main machine.

[0021] As a further description of the above technical solutions:

[0022] The filter membranes of the first-stage concentration device and the second-stage concentration device are all roll type columnar multi-layer composite membranes, the molecular weight cut-off is 100-150 Dalton, the operating pressure is 3-5 MPa, the operating temperature is 5-45 DEG C, the cleaning temperature is 20-55 DEG C, the overall equipment control adopts PLC automatic control, and the PID automatic regulating system regulates the concentration ratio and the water production.

[0023] The utility model has the advantages of the following beneficial effects:

[0024] In the utility model, the continuous fruit juice membrane concentration system equipment adopts the membrane concentration main machine to continuously concentrate fruit juice at low temperature, and the fruit juice concentration can be rapidly increased to more than 20% through one-stage concentration and two-stage concentration; the equipment can realize continuous concentration and circulating concentration through the three-way valve, the production demand under different processes is facilitated, the whole concentration process only consumes electric energy, does not involve phase change, does not use steam or electric heating, energy consumption is low, and operation cost is low. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 The utility model provides a kind of continuous fruit juice membrane concentration system equipment structure schematic view.

[0026] LEGEND:

[0027] 1, clear juice tank one; 2, clear juice tank two; 3, cleaning tank; 4, concentration tank; 5, membrane dialysis water tank; 6, transfer pump; 7, raw material pump; 8, total booster pump group; 9, booster pump one; 10, double four-core filter bag filter one; 11, double four-core filter bag filter two; 12, blowdown valve; 13, pure water inlet valve; 14, cleaning regulating valve; 15, production regulating valve; 16, alkali adding device; 17, acid adding device. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0029] Referring to Figure 1 An embodiment provided by the utility model: a continuous fruit juice membrane concentration system equipment, including clear juice tank one 1, clear juice tank two 2, cleaning tank 3, concentration tank 4, membrane dialysis water tank 5, transfer pump 6, raw material pump 7, total booster pump group 8, booster pump one 9, double four-core filter bag filter one 10, double four-core filter bag filter two 11, blowdown valve 12, pure water inlet valve 13, cleaning regulating valve 14, production regulating valve 15, alkali adding device 16 and acid adding device 17, clear juice tank one 1, clear juice tank two 2, cleaning tank 3, raw material pump 7, total booster pump group 8, booster pump one 9, membrane concentration host, membrane dialysis water tank 5 are sequentially connected in series.

[0030] The configuration of clear juice tank one 1 and clear juice tank two 2 ensures the uniformity and stability of fruit juice before entering the membrane concentration system, which helps to improve the molecular interception effect in the subsequent membrane concentration process and avoid membrane blockage or efficiency reduction due to uneven fruit juice composition. The concentrated liquid outlet of the membrane concentration host is communicated with the concentration tank 4 or the cleaning tank 3 through a three-way valve, and the dialysate outlet of the membrane concentration host is communicated with the membrane dialysis water tank 5 or the cleaning tank 3 through a three-way valve. This three-way valve design not only improves the flexibility of the system, but also can quickly switch between different working modes, such as in the cleaning mode, the dialysate of the membrane dialysis water tank 5 is introduced into the cleaning tank 3 for reverse cleaning, so as to maintain the cleanliness of the membrane and prolong the service life.

[0031] The system includes a pre-membrane pressure gauge, a pre-membrane thermometer, a post-membrane pressure gauge, a temperature sensor, a pressure sensor, a liquid level sensor, a concentrated liquid flow meter, a dialysis liquid flow meter, and a control cabinet. The pre-membrane pressure gauge and the pre-membrane thermometer are installed on the liquid inlet side pipeline of the membrane concentration main machine. The post-membrane pressure gauge, the temperature sensor, the pressure sensor, and the concentrated liquid flow meter are installed on the concentrated liquid outlet side pipeline of the membrane concentration main machine. The dialysis liquid flow meter is installed on the dialysis liquid outlet side pipeline of the membrane concentration main machine. The liquid level sensor is installed at the bottom of the clear juice tank 1, the clear juice tank 2, the cleaning tank 3, the concentrated tank 4, and the membrane dialysis water tank 5. The temperature sensor signal output end, the pressure sensor signal input end, and the liquid level sensor signal input end are connected with the signal input end of the control cabinet. The control input end of the raw material pump 7, the total booster pump group 8, and the booster pump 1 are connected with the control output end of the control cabinet.

[0032] The application of these sensors not only enables real-time monitoring of the system's working state, but also realizes automatic adjustment, ensuring that the equipment is always in the best working condition. For example, the pre-membrane thermometer and pressure gauge help to determine whether the liquid inlet conditions are suitable, while the concentrated liquid flow meter and dialysis liquid flow meter can accurately control the concentration ratio, thereby optimizing energy use. A filter inlet valve is installed on the pipeline between the liquid outlet of the clear juice tank 1 and the liquid inlet of the raw material pump 7. An electromagnetic regulating valve and a concentrated liquid return valve are installed on the pipeline between the concentrated liquid outlet of the membrane concentration main machine and the liquid inlet of the cleaning tank 3. A membrane dialysis liquid inlet valve is provided on the connecting pipeline between the liquid inlet of the membrane dialysis water tank 5 and the dialysis liquid outlet of the membrane concentration main machine. The liquid outlet of the clear juice tank 1 and the liquid outlet of the membrane dialysis water tank 5 are connected with a blowdown pipeline, and a blowdown valve 12 is installed on the pipeline.

[0033] The installation of these valves not only ensures smooth liquid flow, but also quickly switches to a safe state in case of failure or system cleaning. For example, the electromagnetic regulating valve can adjust the liquid flow according to the system requirements, ensuring stable pressure and flow rate during the membrane concentration process, and reducing energy consumption.

[0034] It also includes an alkali adding device 16, an acid adding device 17, and a double four-core filter bag filter 10. Alkali inlet and acid inlet are left on the pipeline between the cleaning tank 3 and the double four-core filter bag filter 10. The liquid outlet of the cleaning tank 3 is connected with the liquid inlet of the double four-core filter bag filter 10 through the raw material pump 7. The control input end of the raw material pump 7 is connected with the control output end of the control cabinet.

[0035] The design of the alkali adding device 16 and the acid adding device 17 enables the adjustment of the pH value of the liquid during the cleaning process, which helps to more effectively remove contaminants and deposits on the surface of the membrane and ensure long-term stable operation of the membrane. The double four-core filter bag filter 10 provides additional physical filtration, further ensuring the purity of the liquid. The double four-core filter bag filter 10 outlet is directly equipped with a single-phase check valve with the total booster pump set 8, the outlet of the total booster pump set 8 is connected with the liquid inlet of the membrane concentration host, the first concentration outlet of the membrane concentration host is connected with the inlet of the booster pump 9, and the liquid outlet of the booster pump 9 is connected with the blowdown pipeline and is equipped with a blowdown valve 12.

[0036] The single-phase check valve prevents backflow of the liquid, which is very important for maintaining the stability of the membrane concentration system. The configuration of the booster pump further ensures that the system can withstand high pressure environment, thereby improving the efficiency of membrane concentration and quickly removing water from the juice. The second-stage concentrated liquid outlet of the membrane concentration host is equipped with a production regulating valve 15 and a cleaning regulating valve 14, which are connected in parallel. The liquid outlets of the production regulating valve 15 and the cleaning regulating valve 14 are connected to the liquid inlet of the concentration tank 4 through a pipeline, and the dialysate outlet is connected to the membrane dialysis water tank 5 and the cleaning tank 3 through a three-way valve and a pipeline, respectively.

[0037] The parallel design of the production regulating valve 15 and the cleaning regulating valve 14 enables flexible adjustment of the system, ensuring the continuity of the production process and providing the necessary flexibility during the cleaning stage. Precise control of these valves ensures the balance of the flow of concentrated liquid and dialysate. The clear juice tank 1, the clear juice tank 2, the cleaning tank 3, the concentration tank 4, the transfer pump 6, the raw material pump 7, the total booster pump set 8, the booster pump 9, the membrane concentration host, and the membrane dialysis water tank 5 are connected through 304 stainless steel pipelines, and are connected with the 304 stainless steel pipelines through quick-mount chucks, respectively.

[0038] The 304 stainless steel pipeline not only ensures the corrosion resistance of the equipment, but also prevents the juice from reacting with other materials, ensuring food-grade safety. The quick-mount chuck connection facilitates the maintenance and disassembly of the equipment, greatly improving the convenience of operation. The membrane concentration host includes a first-stage concentration device and a second-stage concentration device. The liquid inlet of the first-stage concentration device is the liquid inlet of the membrane concentration host, the concentrated liquid outlet of the first-stage concentration device is connected with the liquid inlet of the second-stage concentration device, the dialysate outlets of the first-stage concentration device and the second-stage concentration device are the dialysate outlets of the membrane concentration host, and the concentrated liquid outlet of the second-stage concentration device is the concentrated liquid outlet of the membrane concentration host. The segmented design of the first-stage and second-stage concentration devices helps to gradually increase the concentration of the juice, avoiding the efficiency reduction or membrane damage caused by one-time excessive concentration.

[0039] Working principle: after entering the membrane concentration host, the fruit juice first passes through the first stage of concentration device, in this stage, the water in the fruit juice is removed initially. The molecular weight of the membrane is 100-150 Dalton, which can effectively separate the macromolecular substances. The concentrated liquid flows out through the concentrated liquid outlet, enters the second stage of concentration device, further removes the water, and improves the concentration effect. The process of the concentrated liquid flow is monitored by sensors such as concentrated liquid flow meter and post-membrane pressure gauge in real time, so as to ensure that the pressure and flow of the system are within the set range.

[0040] After the concentrated liquid passes through the second stage of concentration device, it finally flows out and is transported to the concentration tank 4 for subsequent processing or packaging. At the same time, the dialysate flows out from the dialysate outlet of the membrane concentration host, enters the membrane dialysis water tank 5, and the flow of the dialysate is accurately controlled by the dialysate flow meter to ensure that the water and other small molecular substances in the system are effectively removed.

[0041] The booster pump 9 and the total booster pump group 8 in the system provide necessary pressure support to ensure that the membrane concentration process can be carried out efficiently in a high-pressure environment, and increase the concentration ratio of the fruit juice. In order to prevent the membrane from being blocked and damaged, the system is equipped with a double four-core filter bag filter 10, which can remove larger particulate impurities in the fruit juice and further improve the service life of the membrane.

[0042] In the cleaning stage, the system adjusts the pH value through the cleaning tank 3 and the alkali adding device 16 and the acid adding device 17, so as to efficiently clean the membrane surface and remove the scale. The cleaning liquid returns to the membrane concentration host through the pipeline for backwashing, so as to maintain the high flux of the membrane.

[0043] Finally, it should be pointed out that the above-mentioned is only the preferred embodiment of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A continuous fruit juice membrane concentration system device comprising a clear juice tank 1, a clear juice tank 2, a washing tank 3, a concentration tank 4, a membrane dialysis water tank 5, a transfer pump 6, a raw material pump 7, a total booster pump set 8, a booster pump 1, a double four-core filter bag filter 1 10, a double four-core filter bag filter 2 11, a blowdown valve 12, a pure water inlet valve 13, a washing regulating valve 14, a production regulating valve 15, an alkali adding device 16, and an acid adding device 17, characterized in that: The clear juice tank one (1), the clear juice tank two (2), the cleaning tank (3), the raw material pump (7), the total booster pump group (8), the booster pump one (9), the membrane concentration main machine, the membrane dialysis water tank (5) are sequentially connected in series, the concentrated liquid outlet of the membrane concentration main machine is communicated with the concentration tank (4) or the cleaning tank (3) through a three-way valve, the dialysis liquid outlet of the membrane concentration main machine is communicated with the membrane dialysis water tank (5) or the cleaning tank (3) through a three-way valve.

2. A continuous fruit juice membrane concentration system apparatus according to claim 1, characterized in that: The control cabinet is connected with the signal input end of the temperature sensor signal output end, the pressure sensor signal input end and the liquid level sensor signal input end, and the control input end of the raw material pump (7), the total booster pump group (8) and the booster pump one (9) is connected with the control output end of the control cabinet.

3. A continuous fruit juice membrane concentration system apparatus as claimed in claim 1, wherein: The pipeline between the liquid outlet of the clear juice tank one (1) and the liquid inlet of the raw material pump (7) is provided with a filter liquid inlet valve, the pipeline between the concentrated liquid outlet of the membrane concentration main machine and the liquid inlet of the cleaning tank (3) is provided with an electromagnetic regulating valve and a concentrated liquid backflow valve, the connecting pipeline between the liquid inlet of the membrane dialysis water tank (5) and the dialysis liquid outlet of the membrane concentration main machine is provided with a membrane dialysis liquid inlet valve, and the liquid outlet of the clear juice tank one (1) and the liquid outlet of the membrane dialysis water tank (5) are connected with a blowdown pipeline and provided with a blowdown valve (12) on the pipeline.

4. A continuous fruit juice membrane concentration system apparatus according to claim 1, wherein: The pipeline between the liquid inlet of the clear juice tank one (1) and the liquid inlet of the raw material pump (7) is provided with a filter liquid inlet valve, the pipeline between the concentrated liquid outlet of the membrane concentration main machine and the liquid inlet of the cleaning tank (3) is provided with an electromagnetic regulating valve and a concentrated liquid backflow valve, the connecting pipeline between the liquid inlet of the membrane dialysis water tank (5) and the dialysis liquid outlet of the membrane concentration main machine is provided with a membrane dialysis liquid inlet valve, and the liquid outlet of the clear juice tank one (1) and the liquid outlet of the membrane dialysis water tank (5) are connected with a blowdown pipeline and provided with a blowdown valve (12) on the pipeline.

5. A continuous fruit juice membrane concentration system apparatus according to claim 4, wherein: The pipeline between the liquid inlet of the clear juice tank one (1) and the liquid inlet of the raw material pump (7) is provided with a filter liquid inlet valve, the pipeline between the concentrated liquid outlet of the membrane concentration main machine and the liquid inlet of the cleaning tank (3) is provided with an electromagnetic regulating valve and a concentrated liquid backflow valve, the connecting pipeline between the liquid inlet of the membrane dialysis water tank (5) and the dialysis liquid outlet of the membrane concentration main machine is provided with a membrane dialysis liquid inlet valve, and the liquid outlet of the clear juice tank one (1) and the liquid outlet of the membrane dialysis water tank (5) are connected with a blowdown pipeline and provided with a blowdown valve (12) on the pipeline.

6. A continuous fruit juice membrane concentration system apparatus according to claim 5, wherein: The pipeline between the liquid inlet of the clear juice tank one (1) and the liquid inlet of the raw material pump (7) is provided with a filter liquid inlet valve, the pipeline between the concentrated liquid outlet of the membrane concentration main machine and the liquid inlet of the cleaning tank (3) is provided with an electromagnetic regulating valve and a concentrated liquid backflow valve, the connecting pipeline between the liquid inlet of the membrane dialysis water tank (5) and the dialysis liquid outlet of the membrane concentration main machine is provided with a membrane dialysis liquid inlet valve, and the liquid outlet of the clear juice tank one (1) and the liquid outlet of the membrane dialysis water tank (5) are connected with a blowdown pipeline and provided with a blowdown valve (12) on the pipeline. The pipeline between the liquid inlet of the clear juice tank one (1) and the liquid inlet of the raw material pump (7) is provided with a filter liquid inlet valve, the pipeline between the concentrated liquid outlet of the membrane concentration main machine and the liquid inlet of the cleaning tank (3) is provided with an electromagnetic regulating valve and a concentrated liquid backflow valve, the connecting pipeline between the liquid inlet of the membrane dialysis water tank (5) and the dialysis liquid outlet of the membrane concentration main machine is provided with a membrane dialysis liquid inlet valve, and the liquid outlet of the clear juice tank one (1) and the liquid outlet of the membrane dialysis water tank (5) are connected with a blowdown pipeline and provided with a blowdown valve (12) on the pipeline.

7. A continuous fruit juice membrane concentration system apparatus according to claim 1, wherein: The clear juice tank one (1), the clear juice tank two (2), the cleaning tank (3), the concentration tank (4), the transfer pump (6), the raw material pump (7), the total booster pump set (8), the booster pump one (9), the membrane concentration main machine and the membrane dialysis water tank (5) are connected through 304 stainless steel pipes, and are connected with the 304 stainless steel pipes through quick mounting chucks respectively.

8. A continuous fruit juice membrane concentration system apparatus according to claim 1, wherein: The membrane concentration main machine comprises a first-stage concentration device and a second-stage concentration device, the liquid inlet of the first-stage concentration device is the liquid inlet of the membrane concentration main machine, the concentrated liquid outlet of the first-stage concentration device is communicated with the liquid inlet of the second-stage concentration device, the dialysate outlets of the first-stage concentration device and the second-stage concentration device are the dialysate outlet of the membrane concentration main machine, and the concentrated liquid outlet of the second-stage concentration device is the concentrated liquid outlet of the membrane concentration main machine.

9. A continuous fruit juice membrane concentration system apparatus according to claim 8, wherein: The filter membranes of the first-stage concentration device and the second-stage concentration device are all roll-type columnar multi-layer composite membranes, the molecular weight cut-off is 100-150 Dalton, the operating pressure is 3-5 MPa, the operating temperature is 5-45 DEG C, the cleaning temperature is 20-55 DEG C, the overall equipment control adopts PLC automatic control, and the PID automatic regulating system concentrates the proportion and the water production.

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