A reverse osmosis device for concentrating RO water

Abstract

The utility model relates to water treatment technical field, concretely relates to a kind of RO concentrated water reverse osmosis device, the utility model discloses base, support frame, control component, security filter, water inlet pipe, softening filter, precision filter, first connecting pipe, reverse osmosis membrane module and second connecting pipe, the water inlet pipe is installed in the side above security filter, it is communicated by first connecting pipe and is set between security filter, softening filter and precision filter, it is communicated by second connecting pipe and is set between precision filter and reverse osmosis membrane module, the control component is fixedly installed above base;It further includes water production buffer box and reflux pipe, third connecting pipe is installed between the water production buffer box and reverse osmosis membrane module, and the both ends of third connecting pipe are connected with the water production outlet of reverse osmosis membrane module and water production buffer box respectively, the both ends of the reflux pipe are connected with the concentrated water outlet of reverse osmosis membrane module and second connecting pipe respectively.

Description

Technical Field

[0001] This utility model relates to the field of water treatment technology, specifically to an RO concentrate reverse osmosis device. Background Technology

[0002] Reverse osmosis (RO) uses sufficient pressure to force the solvent in a solution through a reverse osmosis membrane, separating it from the osmotic pressure. The direction of osmosis is opposite to that of osmosis. RO can be used to separate, purify, and concentrate solutions using pressures greater than the osmotic pressure. RO technology can effectively remove dissolved salts, colloids, bacteria, viruses, bacterial endotoxins, and most organic matter from water. As a highly efficient desalination method, RO technology is widely used in industrial, municipal, and seawater desalination fields. During operation, RO systems generate a large amount of concentrate, which is characterized by high salinity, high hardness, and high organic matter content. Direct discharge not only wastes water resources but also pollutes the environment. Current methods for treating RO concentrate mostly involve direct discharge or simple dilution before discharge. Direct discharge not only wastes water resources but also leads to increased salinity in receiving water bodies and soil salinization. A few methods use evaporation crystallization, but this is energy-intensive and requires large equipment investments, making it unsuitable for small- to medium-scale treatment scenarios.

[0003] Therefore, the present invention provides an RO concentrate reverse osmosis device to solve the above problems. Utility Model Content

[0004] The technical problem to be solved by this utility model is that the existing methods for treating RO concentrate are mostly direct discharge or simple dilution before discharge. Direct discharge not only wastes water resources, but also leads to increased salinity of receiving water and soil salinization. A few use evaporation crystallization technology, but evaporation crystallization consumes a lot of energy and requires a large investment in equipment, which is not suitable for small and medium-sized treatment scenarios.

[0005] This utility model provides the following technical solution: an RO concentrate reverse osmosis device, including a base, a support frame, a control component, a security filter, an inlet pipe, a softening filter, a precision filter, a first connecting pipe, a reverse osmosis membrane assembly, and a second connecting pipe. The support frame is fixedly installed above the base. The inlet pipe is installed on one side above the security filter and is connected to the security filter. The security filter, softening filter, and precision filter are sequentially installed on the support frame. The security filter, softening filter, and precision filter are connected to each other through the first connecting pipe. The precision filter is connected to the reverse osmosis membrane assembly through the second connecting pipe. The control component is fixedly installed above the base. It also includes a permeate buffer tank and a return pipe. A third connecting pipe is installed between the permeate buffer tank and the reverse osmosis membrane assembly, and both ends of the third connecting pipe are connected to the permeate outlet of the reverse osmosis membrane assembly and the permeate buffer tank, respectively. Both ends of the return pipe are connected to the concentrate outlet of the reverse osmosis membrane assembly and the second connecting pipe, respectively.

[0006] Preferably, a variable frequency high-pressure pump and a pressure transmitter are installed on the second connecting pipe, and the pressure transmitter is installed at the outlet end of the variable frequency high-pressure pump. The variable frequency high-pressure pump and the pressure transmitter are electrically connected to the control component.

[0007] Preferably, an electromagnetic flow meter is installed on the third connecting pipe, and the electromagnetic flow meter is electrically connected to the control component.

[0008] Preferably, a salinity sensor is fixedly installed above the reflux pipe, and the detection end of the salinity sensor extends into the interior of the reflux pipe. A reflux pump is installed on the reflux pipe, and a second discharge valve is fixedly installed on one side of the reflux pipe, and the second discharge valve is connected to the reflux pipe. The salinity sensor and the reflux pump are electrically connected to the control component.

[0009] Preferably, a conductivity meter is fixedly installed on one side of the product water buffer tank, and the detection end of the conductivity meter extends into the interior of the product water buffer tank. The conductivity meter is electrically connected to the control component.

[0010] Preferably, an ultraviolet disinfection component is fixedly installed above the product water buffer tank, and the ultraviolet disinfection component extends into the interior of the product water buffer tank, and the ultraviolet disinfection component is electrically connected to the control component.

[0011] Preferably, a liquid level sensor is fixedly installed on the inner wall of the product water buffer tank, a first discharge valve is fixedly installed on one side of the product water buffer tank, and the first discharge valve is connected to the bottom of the product water buffer tank. The liquid level sensor is electrically connected to the control component.

[0012] Preferably, a medicine storage tank is fixedly installed above the security filter, and the liquid outlet of the medicine storage tank extends into the interior of the security filter. A dosing valve is installed at the liquid outlet of the medicine storage tank, and the dosing valve is electrically connected to the control component.

[0013] Preferably, the control component includes a remote communication module, which uses the Ethernet communication protocol.

[0014] The beneficial effects of this utility model are as follows: This invention incorporates a security filter, a softening filter, a precision filter, a chemical storage tank, and a dosing valve. The security filter, softening filter, and precision filter perform preliminary treatment on the incoming water, removing large particles, reducing hardness, and further filtering out tiny impurities, thus providing better inlet water conditions for the reverse osmosis membrane module. The chemical storage tank, in conjunction with the dosing valve, allows for the addition of chemicals to the security filter based on the inlet water quality, further optimizing the inlet water quality, preventing the deposition of crystals such as calcium carbonate and calcium sulfate on the membrane surface, and extending the service life of the reverse osmosis membrane. This invention utilizes a variable frequency high-pressure pump, a pressure transmitter, an electromagnetic flow meter, a return pipe, a second discharge valve, a salinity sensor, and a return pump. The pressure transmitter monitors the pressure in real time, the electromagnetic flow meter monitors the permeate flow rate in real time and feeds the data back to the control component. Based on the pressure data and water flow rate, the variable frequency high-pressure pump is adjusted to ensure the efficient and stable operation of the reverse osmosis process. The salinity sensor monitors the salinity of the concentrate in the return pipe in real time. When the salinity reaches a certain threshold, the control component can control the return pump and the second discharge valve to discharge the high-salinity concentrate or perform other treatments to avoid damage to the device caused by the high-salinity concentrate. This invention incorporates an ultraviolet disinfection component, a conductivity meter, a first discharge valve, and a liquid level sensor. The conductivity meter monitors the conductivity of the produced water in the produced water buffer tank in real time, reflecting the water quality. The ultraviolet disinfection component disinfects the produced water to ensure its hygiene and safety. The liquid level sensor monitors the liquid level in the produced water buffer tank. When the liquid level is too high or too low, it controls the first discharge valve to perform corresponding operations, ensuring the normal operation of the device. This invention features a remote communication module that uses the Ethernet communication protocol, enabling operators to remotely monitor and control the device, thereby improving management efficiency and convenience. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 For the present utility model Figure 1 A magnified view of a portion of area A; Figure 3 This diagram shows the connection relationship between the ultraviolet disinfection component and the product water buffer tank of this utility model. Figure 4 For the present utility model Figure 1 A magnified view of a portion of area B.

[0017] In the diagram: 1. Base; 2. Support frame; 3. Control components; 4. Security filter; 5. Inlet pipe; 6. Softening filter; 7. Precision filter; 8. First connecting pipe; 9. Reverse osmosis membrane module; 10. Second connecting pipe; 11. Variable frequency high-pressure pump; 12. Pressure transmitter; 13. Product water buffer tank; 14. Ultraviolet disinfection module; 15. Third connecting pipe; 16. Electromagnetic flow meter; 17. Conductivity meter; 18. First discharge valve; 19. Return pipe; 20. Second discharge valve; 21. Salinity sensor; 22. Return pump; 23. Liquid level sensor; 24. Chemical storage tank; 25. Dosing valve. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely represents some embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0019] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and "back side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product is conventionally placed during use. These terms are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model.

[0021] It should also be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] The present invention aims to address the problem that existing methods for treating RO concentrate mostly involve direct discharge or simple dilution followed by discharge. Direct discharge not only wastes water resources but also leads to increased salinity in receiving water and soil salinization. A few methods use evaporation crystallization technology, but evaporation crystallization consumes a lot of energy and requires large equipment investment, making it unsuitable for small and medium-sized treatment scenarios. In view of this, the present disclosure proposes an RO concentrate reverse osmosis device. Through the arrangement of a security filter, a softening filter, a precision filter, a chemical storage tank, and a dosing valve, the security filter, softening filter, and precision filter perform preliminary treatment on the feed water, removing large particulate impurities, reducing hardness, and further filtering out minute impurities, providing better feed water conditions for the reverse osmosis membrane module. The chemical storage tank, in conjunction with the dosing valve, can add chemicals to the security filter according to the feed water quality, further optimizing the feed water quality, preventing the deposition of crystals such as calcium carbonate and calcium sulfate on the membrane surface, and extending the service life of the reverse osmosis membrane. A salinity detection sensor monitors the salinity of the concentrate in the return pipe in real time. When the salinity reaches a certain threshold, the control component can control the return pump and the second discharge valve to discharge the high-salinity concentrate or perform other treatments, avoiding damage to the device caused by the high-salinity concentrate.

[0023] like Figures 1 to 4 As shown, an RO concentrate reverse osmosis device includes a base 1, a support frame 2, a control component 3, a security filter 4, an inlet pipe 5, a softening filter 6, a precision filter 7, a first connecting pipe 8, a reverse osmosis membrane assembly 9, and a second connecting pipe 10. The support frame 2 is fixedly installed above the base 1. The inlet pipe 5 is installed on one side above the security filter 4 and is connected to the security filter 4. The security filter 4, the softening filter 6, and the precision filter 7 are sequentially installed on the support frame 2. The filters 7 are connected to each other via a first connecting pipe 8, and the precision filter 7 is connected to the reverse osmosis membrane module 9 via a second connecting pipe 10. The control component 3 is fixedly installed above the base 1. It also includes a permeate buffer tank 13 and a return pipe 19. A third connecting pipe 15 is installed between the permeate buffer tank 13 and the reverse osmosis membrane module 9, and the two ends of the third connecting pipe 15 are respectively connected to the permeate outlet of the reverse osmosis membrane module 9 and the permeate buffer tank 13. The two ends of the return pipe 19 are respectively connected to the concentrate outlet of the reverse osmosis membrane module 9 and the second connecting pipe 10.

[0024] RO concentrate first enters the security filter 4 from the inlet pipe 5. The security filter 4 initially intercepts larger particles of impurities in the water. At this time, the control component 3 controls the opening of the dosing valve 25 according to the actual situation, so that the chemicals in the storage tank 24 flow into the security filter 4 to pre-treat the water. The water treated by the security filter 4 flows into the softening filter 6 through the first connecting pipe 8. The softening filter 6 can reduce the hardness of the water and reduce the risk of scaling in subsequent equipment. Then the water passes through the precision filter 7 for further filtration to remove finer impurities. The pre-treated water enters the reverse osmosis membrane module 9 through the second connecting pipe 10. The water is separated into permeate and concentrate. The permeate flows into the permeate buffer tank 13 through the third connecting pipe 15, and the concentrate flows into the return pipe 19.

[0025] like Figure 1 As shown, a variable frequency high-pressure pump 11 and a pressure transmitter 12 are installed on the second connecting pipe 10, and the pressure transmitter 12 is installed at the outlet end of the variable frequency high-pressure pump 11. The variable frequency high-pressure pump 11 and the pressure transmitter 12 are electrically connected to the control component 3. An electromagnetic flow meter 16 is installed on the third connecting pipe 15, and the electromagnetic flow meter 16 is electrically connected to the control component 3.

[0026] The variable frequency high-pressure pump 11 provides sufficient pressure for the water to pass smoothly through the reverse osmosis membrane. The pressure transmitter 12 monitors the pressure in real time, and the electromagnetic flow meter 16 records the flow rate of the produced water and feeds the data back to the control component 3. The control component 3 can adjust the variable frequency high-pressure pump 11 according to the pressure data and the water flow rate.

[0027] like Figure 1 and Figure 2 As shown, a salinity sensor 21 is fixedly installed above the reflux pipe 19, and the detection end of the salinity sensor 21 extends into the interior of the reflux pipe 19. A reflux pump 22 is installed on the reflux pipe 19, and a second discharge valve 20 is fixedly installed on one side of the reflux pipe 19, and the second discharge valve 20 is connected to the reflux pipe 19. The salinity sensor 21 and the reflux pump 22 are electrically connected to the control component 3.

[0028] The salinity sensor 21 detects the salinity of the concentrate. When the salinity of the concentrate is below 5000 mg / L, the control component 3 controls the return pump 22 to send the concentrate back to the second connecting pipe 10 for reverse osmosis treatment again, thereby improving the utilization rate of water resources. When the salinity is above 5000 mg / L, the control component 3 controls the second discharge valve 20 to open and discharge the high-salinity concentrate.

[0029] like Figure 1 and Figure 3As shown, a conductivity meter 17 is fixedly installed on one side of the permeate buffer tank 13, and the detection end of the conductivity meter 17 extends into the interior of the permeate buffer tank 13. The conductivity meter 17 is electrically connected to the control component 3. An ultraviolet disinfection component 14 is fixedly installed on the top of the permeate buffer tank 13, and the ultraviolet disinfection component 14 extends into the interior of the permeate buffer tank 13. The ultraviolet disinfection component 14 is electrically connected to the control component 3. A liquid level sensor 23 is fixedly installed on the inner wall of the permeate buffer tank 13. A first discharge valve 18 is fixedly installed on one side of the permeate buffer tank 13, and the first discharge valve 18 is connected to the bottom of the permeate buffer tank 13. The liquid level sensor 23 is electrically connected to the control component 3.

[0030] The conductivity meter 17 detects the conductivity of the produced water in real time to determine the water quality. The ultraviolet disinfection component 14 disinfects and sterilizes the produced water to ensure its hygiene and safety. The liquid level sensor 23 monitors the liquid level in the produced water buffer tank 13. When the liquid level is too high, it controls the first discharge valve 18 to open and discharge part of the produced water.

[0031] like Figure 1 and Figure 4 As shown, a medicine storage tank 24 is fixedly installed above the security filter 4, and the liquid outlet of the medicine storage tank 24 extends into the interior of the security filter 4. A dosing valve 25 is installed at the liquid outlet of the medicine storage tank 24, and the dosing valve 25 is electrically connected to the control component 3.

[0032] According to the actual situation, control the opening of the dosing valve 25 so that the scale inhibitor in the storage tank 24 flows into the security filter 4. The scale inhibitor is evenly mixed with the concentrated water to prevent the deposition of crystals such as calcium carbonate and calcium sulfate on the membrane surface.

[0033] like Figure 1 As shown, control component 3 includes a remote communication module, which uses the Ethernet communication protocol.

[0034] The remote communication module of control component 3 can transmit data with the remote monitoring center via Ethernet communication protocol, which facilitates remote monitoring and operation of the RO concentrate reverse osmosis unit by staff and timely handling of various abnormal situations.

[0035] During operation, RO concentrate first enters the security filter 4 through the inlet pipe 5. The dosing valve 25 is opened according to the actual situation, allowing the scale inhibitor in the storage tank 24 to flow into the security filter 4. The scale inhibitor mixes evenly with the concentrate, and the security filter 4 initially intercepts larger particles of impurities in the water. The water treated by the security filter 4 flows into the softening filter 6 through the first connecting pipe 8. The softening filter 6 reduces water hardness, decreasing the risk of scaling in subsequent equipment. The water then passes through the precision filter 7 for further filtration, removing even finer impurities. The pretreated water then enters the reverse osmosis membrane module 9 through the second connecting pipe 10. The variable frequency high-pressure pump 11 provides sufficient pressure to allow the water to pass smoothly through the reverse osmosis membrane, achieving water separation. For both permeate and concentrate, permeate flows into the permeate buffer tank 13 via the third connecting pipe 15, while the concentrate flows into the return pipe 19. A pressure transmitter 12 monitors the pressure in real time, and an electromagnetic flowmeter 16 records the permeate flow rate and feeds the data back to the control component 3. The variable frequency high-pressure pump 11 can be adjusted based on the pressure data and water flow rate. A conductivity meter 17 detects the conductivity of the permeate in real time to determine its quality. An ultraviolet disinfection component 14 disinfects the permeate. A level sensor 23 monitors the level in the permeate buffer tank 13; when the level is too high, the first discharge valve 18 is opened to discharge a portion of the permeate. A salinity sensor 21 detects the salinity of the concentrate; if the salinity is below 5000 mg / L... When the concentration is above 5000 mg / L, the return pump 22 is turned on to send the concentrate back to the second connecting pipe 10 for reverse osmosis treatment again. When the concentration is above 5000 mg / L, the second discharge valve 20 is opened to discharge the high-salinity concentrate. The remote communication module of the control component 3 transmits data with the remote monitoring center through the Ethernet communication protocol, which facilitates remote monitoring and operation of the RO concentrate reverse osmosis device by the staff and timely handling of various abnormal situations.

[0036] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An RO concentrate reverse osmosis device, comprising a base (1), a support frame (2), a control component (3), a security filter (4), an inlet pipe (5), a softening filter (6), a precision filter (7), a first connecting pipe (8), a reverse osmosis membrane assembly (9), and a second connecting pipe (10), wherein the support frame (2) is fixedly installed above the base (1), the inlet pipe (5) is installed on one side above the security filter (4) and is connected to the security filter (4), the security filter (4), the softening filter (6), and the precision filter (7) are sequentially installed on the support frame (2), the security filter (4), the softening filter (6), and the precision filter (7) are connected to each other through the first connecting pipe (8), the precision filter (7) is connected to the reverse osmosis membrane assembly (9) through the second connecting pipe (10), and the control component (3) is fixedly installed above the base (1); characterized in that, It also includes a permeate buffer tank (13) and a return pipe (19). A third connecting pipe (15) is installed between the permeate buffer tank (13) and the reverse osmosis membrane module (9). The two ends of the third connecting pipe (15) are respectively connected to the permeate outlet of the reverse osmosis membrane module (9) and the permeate buffer tank (13). The two ends of the return pipe (19) are respectively connected to the concentrate outlet of the reverse osmosis membrane module (9) and the second connecting pipe (10).

2. The RO concentrate reverse osmosis device according to claim 1, characterized in that: The second connecting pipe (10) is equipped with a variable frequency high pressure pump (11) and a pressure transmitter (12), and the pressure transmitter (12) is installed at the outlet of the variable frequency high pressure pump (11). The variable frequency high pressure pump (11) and the pressure transmitter (12) are electrically connected to the control component (3).

3. The RO concentrate reverse osmosis device according to claim 1, characterized in that: An electromagnetic flowmeter (16) is installed on the third connecting pipe (15), and the electromagnetic flowmeter (16) is electrically connected to the control component (3).

4. The RO concentrate reverse osmosis device according to claim 1, characterized in that: A salinity sensor (21) is fixedly installed above the reflux pipe (19), and the detection end of the salinity sensor (21) extends into the interior of the reflux pipe (19). A reflux pump (22) is installed on the reflux pipe (19). A second discharge valve (20) is fixedly installed on one side of the reflux pipe (19), and the second discharge valve (20) is connected to the reflux pipe (19). The salinity sensor (21) and the reflux pump (22) are electrically connected to the control component (3).

5. The RO concentrate reverse osmosis device according to claim 1, characterized in that: A conductivity meter (17) is fixedly installed on one side of the product water buffer tank (13), and the detection end of the conductivity meter (17) extends into the interior of the product water buffer tank (13). The conductivity meter (17) is electrically connected to the control component (3).

6. The RO concentrate reverse osmosis device according to claim 1, characterized in that: An ultraviolet disinfection component (14) is fixedly installed on the top of the product water buffer tank (13), and the ultraviolet disinfection component (14) extends into the interior of the product water buffer tank (13). The ultraviolet disinfection component (14) is electrically connected to the control component (3).

7. The RO concentrate reverse osmosis device according to claim 1, characterized in that: A liquid level sensor (23) is fixedly installed on the inner wall of the water production buffer tank (13). A first discharge valve (18) is fixedly installed on one side of the water production buffer tank (13), and the first discharge valve (18) is connected to the bottom of the water production buffer tank (13). The liquid level sensor (23) is electrically connected to the control component (3).

8. The RO concentrate reverse osmosis device according to claim 1, characterized in that: A medicine storage tank (24) is fixedly installed above the security filter (4), and the liquid outlet of the medicine storage tank (24) extends into the interior of the security filter (4). A dosing valve (25) is installed at the liquid outlet of the medicine storage tank (24), and the dosing valve (25) is electrically connected to the control component (3).

9. The RO concentrate reverse osmosis device according to claim 1, characterized in that: The control component (3) includes a remote communication module, which uses the Ethernet communication protocol.

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