Coconut water high-power concentration and product recycling system based on membrane technology

Abstract

The utility model provides a coconut water high-power concentration and product recycling system based on a membrane technology, and relates to the technical field of fruit juice concentration. The utility model provides a coconut water high-power concentration and product recycling system based on a membrane technology. The coconut water high-power concentration and product recycling system comprises a coconut water collecting tank, a microfiltration device, a first-stage reverse osmosis device, a second-stage reverse osmosis device, a third-stage reverse osmosis device, a second-stage reverse osmosis device, a forward osmosis device and a freezing concentration device. According to the system, the concentration multiple of coconut water is increased through the first-stage reverse osmosis device, the second-stage reverse osmosis device, the third-stage reverse osmosis device and the forward osmosis device, and high investment and operation cost caused by only adopting a thermal concentration technology or a non-thermal concentration technology is avoided; nutrient substances in the second-stage reverse osmosis produced water and the third-stage reverse osmosis produced water are further recycled through the second-stage reverse osmosis device, and meanwhile the quality of the produced water is improved; the forward osmosis device is high in anti-pollution capability, so that the problem that membrane pollution is easily caused when high-concentration coconut water is concentrated by a reverse osmosis device is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of fruit juice concentration, in particular to a high-fold concentration system of coconut water based on membrane technology and a product resource utilization system thereof. Background Art

[0002] In recent years, the beverage market has experienced rapid growth, with an increasing number of beverages containing coconut products. After harvesting, some coconuts are directly shipped to various consumer markets for sale as coconut water. Others are processed at processing plants, where coconut water is extracted and bottled for transport. Only a small portion of the coconut water is converted into concentrated juice for transport and sale, significantly increasing transportation and storage costs. Therefore, the development and utilization of concentrated coconut water technology is crucial for reducing business costs and conserving energy in certain market sectors.

[0003] Currently, the most widely used method for coconut water juice concentration is thermal concentration, which includes atmospheric pressure thermal concentration and vacuum thermal concentration. This involves heating and evaporating water molecules under atmospheric pressure or a certain vacuum to achieve concentration. Non-thermal concentration also has some applications. This includes freeze concentration and ice-temperature concentration, which achieves concentration by removing crystal water under atmospheric pressure or a certain vacuum. Other methods are also used, such as osmotic distillation, membrane distillation, and integrated membrane technology. Heating-based concentration consumes more energy and poorly preserves the juice's original flavor, nutrients, and color. Freeze concentration saves energy and better preserves the juice's original properties, but it also comes at a higher cost.

[0004] In view of this, the present utility model is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a high-concentration coconut water and product resource system based on membrane technology to solve the above technical problems.

[0006] In order to achieve the above objectives, the following technical solutions are adopted:

[0007] In a first aspect, the utility model provides a high-concentration coconut water and product resource utilization system based on membrane technology, comprising: a coconut water collection tank, a microfiltration device, a first-stage reverse osmosis device, a second-stage reverse osmosis device, a third-stage reverse osmosis device, a second-stage reverse osmosis device, a forward osmosis device, and a freeze concentration device;

[0008] Along the direction of coconut water concentration, the coconut water collection tank, the microfiltration device, the first-stage reverse osmosis device, the second-stage reverse osmosis device, the third-stage reverse osmosis device, the forward osmosis device and the freeze concentration device are connected in sequence through pipelines;

[0009] The concentrated water outlet of the first stage reverse osmosis device is connected to the water inlet of the second stage reverse osmosis device; the concentrated water outlet of the second stage reverse osmosis device is connected to the water inlet of the third stage reverse osmosis device, and the water production outlet of the second stage reverse osmosis device is connected to the water inlet of the second stage reverse osmosis device; the concentrated water outlet of the third stage reverse osmosis device is connected to the water inlet of the forward osmosis device, and the water production outlet of the third stage reverse osmosis device is connected to the water inlet of the second stage reverse osmosis device; the concentrated water outlet of the second stage reverse osmosis device is connected to the water inlet of the first stage reverse osmosis device;

[0010] The forward osmosis device is used to concentrate the concentrated water of the three-stage reverse osmosis device, and the drawn liquid of the forward osmosis device includes a sodium chloride solution.

[0011] As a further technical solution, a stirrer is provided in the coconut water collection tank;

[0012] The stirrer is used for homogenizing the coconut water.

[0013] As a further technical solution, a coarse grid is provided in the coconut water collection tank;

[0014] The coarse screen is used for preliminary removal of suspended matter in coconut water.

[0015] As a further technical solution, it also includes a water production tank;

[0016] The water outlet of the first stage reverse osmosis device is connected to the water production tank pipeline;

[0017] The water production port of the secondary reverse osmosis device is communicated with a water production tank pipeline.

[0018] As a further technical solution, the freeze concentration device includes a vacuum freeze concentrator.

[0019] As a further technical solution, a sterilization device is also included;

[0020] The sterilization device is connected to the freeze concentration device pipeline and is used for sterilizing the concentrated water treated by the freeze concentration device.

[0021] As a further technical solution, the sterilization device includes a pasteurization device.

[0022] As a further technical solution, it also includes an adjustment device;

[0023] The regulating device is connected to the sterilizing device pipeline and is used to regulate the quality of the concentrated water after being treated by the sterilizing device.

[0024] As a further technical solution, the regulating device is provided with a feeding port and a stirrer.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The utility model provides a high-multiple concentration system of coconut water and its product resource utilization system based on membrane technology. The system increases the concentration multiple of coconut water by using a primary reverse osmosis device (one-stage, two-stage, and three-stage reverse osmosis devices) and a forward osmosis device, thereby avoiding the high investment and operating costs of using only thermal concentration technology or non-thermal concentration technology. The secondary reverse osmosis device is used to further recover nutrients in the water produced by the second-stage reverse osmosis and the water produced by the three-stage reverse osmosis, while improving the water quality. The forward osmosis device has strong anti-fouling ability, thereby avoiding the problem of membrane fouling that is prone to occur when concentrating high-concentration coconut water using the reverse osmosis device. At the same time, the reverse osmosis device and the forward osmosis device are used to preliminarily concentrate the coconut water, thereby reducing the cost of freeze concentration. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 The high-concentration and product resource utilization system of coconut water based on membrane technology provided in Example 1;

[0029] Figure 2 The high-concentration and product resource utilization system of coconut water based on membrane technology provided in Example 2.

[0030] Icons: 1-Coconut water collection tank; 2-Microfiltration device; 3-First stage reverse osmosis device; 4-Second stage reverse osmosis device; 5-Third stage reverse osmosis device; 6-Second stage reverse osmosis device; 7-Forward osmosis device; 8-Freeze concentration device; 9-Sterilization device; 10-Regulation device; 11-Water production tank. DETAILED DESCRIPTION

[0031] The following embodiments of the present invention will be described in detail with reference to the embodiments and examples. However, those skilled in the art will understand that the following embodiments and examples are only used to illustrate the present invention and should not be considered to limit the scope of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of the present invention.

[0032] In a first aspect, the utility model provides a high-concentration coconut water and product resource utilization system based on membrane technology, comprising: a coconut water collection tank 1, a microfiltration device 2, a first-stage reverse osmosis device 3, a second-stage reverse osmosis device 4, a third-stage reverse osmosis device 5, a second-stage reverse osmosis device 6, a forward osmosis device 7, and a freeze concentration device 8;

[0033] Along the direction of coconut water concentration, the coconut water collection tank 1, the microfiltration device 2, the first-stage reverse osmosis device 3, the second-stage reverse osmosis device 4, the third-stage reverse osmosis device 5, the forward osmosis device 7 and the freeze concentration device 8 are connected in sequence by pipelines;

[0034] The concentrated water port of the first stage reverse osmosis device 3 is communicated with the water inlet of the second stage reverse osmosis device 4; the concentrated water port of the second stage reverse osmosis device 4 is communicated with the water inlet of the third stage reverse osmosis device 5, and the water production port of the second stage reverse osmosis device 4 is communicated with the water inlet of the second stage reverse osmosis device 6; the concentrated water port of the third stage reverse osmosis device 5 is communicated with the water inlet of the forward osmosis device 7, and the water production port of the third stage reverse osmosis device 5 is communicated with the water inlet of the second stage reverse osmosis device 6; the concentrated water port of the second stage reverse osmosis device 6 is communicated with the water inlet of the first stage reverse osmosis device 3;

[0035] The forward osmosis device 7 is used to concentrate the concentrated water from the three-stage reverse osmosis device 5. The drawn liquid from the forward osmosis device 7 includes a sodium chloride solution.

[0036] The utility model provides a high-multiple concentration system for coconut water and its product resource utilization based on membrane technology. The system increases the concentration multiple of coconut water by using a first-stage reverse osmosis device, a first-stage reverse osmosis device, a second-stage reverse osmosis device, a third-stage reverse osmosis device and a forward osmosis device, thereby avoiding the high investment and operating costs of using only thermal concentration technology or non-thermal concentration technology; through the second-stage reverse osmosis device, nutrients in the second-stage reverse osmosis water and the third-stage reverse osmosis water are further recovered, while the water quality of the produced water is improved; the forward osmosis device has strong anti-fouling ability, thereby avoiding the problem of membrane fouling that is prone to occur when the reverse osmosis device is used to concentrate high-concentration coconut water.

[0037] In some optional embodiments, the coconut water collection tank 1 is provided with an agitator;

[0038] The agitator is used to homogenize the coconut water. The homogenization process is used to maintain the coconut water stable.

[0039] In some optional embodiments, a coarse grid is provided in the coconut water collection tank 1;

[0040] The coarse screen is used to preliminarily remove suspended matter in the coconut water, such as large particles such as coconut shell fragments and fibers.

[0041] In some optional embodiments, a water production tank 11 is further included;

[0042] The water outlet of the first stage reverse osmosis device 3 is connected to the water production tank 11 through a pipeline;

[0043] The water outlet of the secondary reverse osmosis device 6 is connected to the water production tank 11 through a pipeline.

[0044] By setting up a water production tank, the water produced in the concentration process can be reused.

[0045] In some optional embodiments, the freeze concentration device 8 includes a vacuum freeze concentrator.

[0046] In some optional embodiments, a sterilization device 9 is further included;

[0047] The sterilization device 9 is connected to the freeze concentration device 8 through a pipeline and is used to sterilize the concentrated water treated by the freeze concentration device 8 .

[0048] In some optional embodiments, the sterilization device 9 includes but is not limited to a pasteurization device, or other sterilization devices well known to those skilled in the art.

[0049] In some optional embodiments, an adjustment device 10 is further included;

[0050] The regulating device 10 is connected to the sterilizing device 9 through a pipeline, and is used to regulate the quality of the concentrated water after being processed by the sterilizing device 9, such as adjusting the taste of the concentrated juice.

[0051] In some optional embodiments, the regulating device 10 is provided with a feeding port and a stirrer. The feeding port can be used to add flavorings, etc., and the stirrer is used to fully mix the raw materials.

[0052] The present invention is further described below through specific examples. However, it should be understood that these examples are only used for more detailed description and should not be understood as limiting the present invention in any form.

[0053] Example 1

[0054] A high concentration system of coconut water based on membrane technology and its product resource utilization system, such as Figure 1 As shown, it includes: a coconut water collection tank 1, a microfiltration device 2, a first-stage reverse osmosis device 3, a second-stage reverse osmosis device 4, a third-stage reverse osmosis device 5, a second-stage reverse osmosis device 6, a forward osmosis device 7, a freeze concentration device 8 and a water production tank 11;

[0055] Along the direction of coconut water concentration, the coconut water collection tank 1, the microfiltration device 2, the first-stage reverse osmosis device 3, the second-stage reverse osmosis device 4, the third-stage reverse osmosis device 5, the forward osmosis device 7 and the freeze concentration device 8 are connected in sequence by pipelines;

[0056] The coconut water collection tank 1 is equipped with an agitator and a coarse screen. The agitator is used to homogenize the coconut water to maintain its stability. The coarse screen is used to initially remove suspended matter in the coconut water, such as large particles such as coconut shell fiber.

[0057] The concentrate outlet of the first-stage reverse osmosis device 3 is connected to the water inlet of the second-stage reverse osmosis device 4, and the water production outlet of the first-stage reverse osmosis device 3 is connected to the water production tank 11 pipeline; the concentrate outlet of the second-stage reverse osmosis device 4 is connected to the water inlet of the third-stage reverse osmosis device 5, and the water production outlet of the second-stage reverse osmosis device 4 is connected to the water inlet of the second-stage reverse osmosis device 6; the concentrate outlet of the third-stage reverse osmosis device 5 is connected to the water inlet of the forward osmosis device 7, and the water production outlet of the third-stage reverse osmosis device 5 is connected to the water inlet of the second-stage reverse osmosis device 6; the concentrate outlet of the second-stage reverse osmosis device 6 is connected to the water inlet of the first-stage reverse osmosis device 3, and the water production outlet of the second-stage reverse osmosis device 6 is connected to the water production tank 11 pipeline;

[0058] The forward osmosis device 7 is used to concentrate the concentrated water from the three-stage reverse osmosis device 5. The drawn liquid from the forward osmosis device 7 includes a sodium chloride solution.

[0059] The freeze concentrator 8 is a vacuum freeze concentrator.

[0060] Example 2

[0061] A high concentration system of coconut water based on membrane technology and its product resource utilization system, such as Figure 2 As shown, it includes: a coconut water collection tank 1, a microfiltration device 2, a first-stage reverse osmosis device 3, a second-stage reverse osmosis device 4, a third-stage reverse osmosis device 5, a second-stage reverse osmosis device 6, a forward osmosis device 7, a freeze concentration device 8, a sterilization device 9, a regulating device 10 and a water production tank 11;

[0062] Along the direction of coconut water concentration, the coconut water collection tank 1, the microfiltration device 2, the first-stage reverse osmosis device 3, the second-stage reverse osmosis device 4, the third-stage reverse osmosis device 5, the forward osmosis device 7 and the freeze concentration device 8 are connected in sequence by pipelines;

[0063] The coconut water collection tank 1 is equipped with an agitator and a coarse screen. The agitator is used to homogenize the coconut water to maintain its stability. The coarse screen is used to remove suspended matter in the coconut water, such as large particles such as coconut shell fiber.

[0064] The concentrate outlet of the first-stage reverse osmosis device 3 is connected to the water inlet of the second-stage reverse osmosis device 4, and the water production outlet of the first-stage reverse osmosis device 3 is connected to the water production tank 11 pipeline; the concentrate outlet of the second-stage reverse osmosis device 4 is connected to the water inlet of the third-stage reverse osmosis device 5, and the water production outlet of the second-stage reverse osmosis device 4 is connected to the water inlet of the second-stage reverse osmosis device 6; the concentrate outlet of the third-stage reverse osmosis device 5 is connected to the water inlet of the forward osmosis device 7, and the water production outlet of the third-stage reverse osmosis device 5 is connected to the water inlet of the second-stage reverse osmosis device 6; the concentrate outlet of the second-stage reverse osmosis device 6 is connected to the water inlet of the first-stage reverse osmosis device 3, and the water production outlet of the second-stage reverse osmosis device 6 is connected to the water production tank 11 pipeline;

[0065] The forward osmosis device 7 is used to concentrate the concentrated water from the three-stage reverse osmosis device 5. The drawn liquid from the forward osmosis device 7 includes a sodium chloride solution.

[0066] The freeze concentrating device 8 includes a vacuum freeze concentrator;

[0067] The sterilizing device 9 is a pasteurizing device, which is connected to the freeze concentration device 8 through a pipeline and is used to sterilize the concentrated water after being processed by the freeze concentration device 8;

[0068] The regulating device 10 is connected to the sterilizing device 9 through a pipeline and is provided with a feeding port and an agitator for regulating the quality of the concentrated water after being treated by the sterilizing device 9 .

[0069] The working process is as follows:

[0070] After being filtered through a coarse screen, the coconut water flows into a coconut water collection tank 1 for homogenization treatment, and then flows into a microfiltration device 2 for microfiltration to remove smaller suspended particles. The coconut water then passes through a first-stage reverse osmosis device 3, a second-stage reverse osmosis device 4, a third-stage reverse osmosis device 5, a forward osmosis device 7, and a freeze concentration device 8 for concentration. The coconut water is then sterilized in a sterilization device 9 and the quality is adjusted in a conditioning device 10 to obtain coconut juice concentrate.

[0071] The produced water from the second-stage reverse osmosis device 4 and the third-stage reverse osmosis device 5 flows to the second-stage reverse osmosis device 6 for concentration treatment, and the concentrated liquid flows back to the first-stage reverse osmosis device 3 for re-concentration treatment. The produced water from the second-stage reverse osmosis device 6 and the produced water from the first-stage reverse osmosis device 3 are collected in the produced water tank 11.

[0072] During the working process, the parameters of each device are set as follows:

[0073] Microfiltration pore size: 10 μm;

[0074] One-stage reverse osmosis: pressure 40 bar, flux 12 LMH, concentration factor 2 times;

[0075] Second stage reverse osmosis: pressure 60 bar, flux 12 LMH, concentration multiple 4 times;

[0076] Three-stage reverse osmosis: pressure 80 bar, flux 10 LMH, concentration multiple 6 times;

[0077] Secondary reverse osmosis: pressure 40 bar, flux 12 LMH;

[0078] Forward osmosis draw solution: sodium chloride, concentration 36%, concentration multiple 8 times;

[0079] Freeze concentration: cooling temperature -10℃, vacuum value 90kPa, concentration ratio>10 times.

[0080] The coconut water can be concentrated more than 10 times by the device.

[0081] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A high-concentration coconut water and product resource system based on membrane technology, characterized in that: include: Coconut water collection tank (1), microfiltration device (2), first stage reverse osmosis device (3), second stage reverse osmosis device (4), third stage reverse osmosis device (5), second stage reverse osmosis device (6), forward osmosis device (7) and freeze concentration device (8); Along the direction of coconut water concentration, the coconut water collection tank (1), the microfiltration device (2), the first-stage reverse osmosis device (3), the second-stage reverse osmosis device (4), the third-stage reverse osmosis device (5), the forward osmosis device (7) and the freeze concentration device (8) are sequentially connected by pipelines; The concentrated water outlet of the first stage reverse osmosis device (3) is communicated with the water inlet of the second stage reverse osmosis device (4); the concentrated water outlet of the second stage reverse osmosis device (4) is communicated with the water inlet of the third stage reverse osmosis device (5), and the water production outlet of the second stage reverse osmosis device (4) is communicated with the water inlet of the second stage reverse osmosis device (6); the concentrated water outlet of the third stage reverse osmosis device (5) is communicated with the water inlet of the forward osmosis device (7), and the water production outlet of the third stage reverse osmosis device (5) is communicated with the water inlet of the second stage reverse osmosis device (6); the concentrated water outlet of the second stage reverse osmosis device (6) is communicated with the water inlet of the first stage reverse osmosis device (3); The forward osmosis device (7) is used to concentrate concentrated water from the three-stage reverse osmosis device (5), and the drawn liquid from the forward osmosis device (7) includes a sodium chloride solution.

2. The high-concentration and product resource utilization system of coconut water based on membrane technology according to claim 1, characterized in that: The coconut water collection tank (1) is provided with an agitator; The stirrer is used for homogenizing the coconut water.

3. The high-concentration and product resource utilization system of coconut water based on membrane technology according to claim 1, characterized in that: The coconut water collection pool (1) is provided with a coarse grid; The coarse screen is used for preliminary removal of suspended matter in coconut water.

4. The high-concentration and product resource utilization system of coconut water based on membrane technology according to claim 1, characterized in that: Also includes a water production tank (11); The water production port of the first stage reverse osmosis device (3) is connected to the water production tank (11) through a pipeline; The water production port of the secondary reverse osmosis device (6) is in communication with a water production tank (11) via a pipeline.

5. The high-concentration and product resource utilization system of coconut water based on membrane technology according to claim 1, characterized in that: The freeze concentrating device (8) comprises a vacuum freeze concentrator.

6. The high-concentration and product resource utilization system of coconut water based on membrane technology according to claim 1, characterized in that: Also includes a sterilization device (9); The sterilization device (9) is connected to the freeze concentration device (8) through a pipeline and is used to sterilize the concentrated water treated by the freeze concentration device (8).

7. The high-concentration and product resource utilization system of coconut water based on membrane technology according to claim 6, characterized in that: The sterilization device (9) comprises a pasteurization device.

8. The high-concentration and product resource utilization system of coconut water based on membrane technology according to claim 6, characterized in that: Also included is an adjustment device (10); The regulating device (10) is connected to the sterilizing device (9) through a pipeline and is used to regulate the quality of concentrated water after being treated by the sterilizing device (9).

9. The high-concentration and product resource utilization system of coconut water based on membrane technology according to claim 8, characterized in that: The regulating device (10) is provided with a feeding port and a stirrer.

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