Overflow reverse osmosis system

Abstract

The utility model provides an overflowing type reverse osmosis system, which relates to the technical field of sewage treatment, and comprises an overflowing pipeline, a sterilization device, a storage container, a reverse osmosis device and a water body conveying device, the sterilization device is arranged on the overflowing pipeline and is used for sterilizing the sewage; the storage container is communicated with the flow pipeline; the reverse osmosis device is arranged at the downstream of the storage container and comprises a pure water outlet, a concentrated water outlet and a sewage inlet communicated with the through-flow pipeline; the water body conveying device is arranged on the overflowing pipeline and is used for conveying the water body in the storage container into the reverse osmosis device. According to the utility model, microorganisms or other organic matters in sewage are inactivated by utilizing the sterilization device before reverse osmosis filtration, so that the problem of membrane pollution and blockage caused by breeding of the microorganisms in the reverse osmosis device is avoided, the purification effect is favorably improved, and the service life of the reverse osmosis device is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a flow-through reverse osmosis system. Background Art

[0002] As a high-pollution and high-water-consuming industry, steel enterprises still face many problems in water conservation and emission reduction. How to improve the reuse rate of steel plant wastewater and develop and utilize non-traditional water resources to achieve real energy conservation and consumption reduction has become the forefront and hot spot in the field of steel plant water treatment. In the existing technology, the reverse osmosis system has the characteristics of good water quality, small footprint, and easy operation, which makes the reverse osmosis system more and more used in sewage treatment. In the process of filtering and treating steel plant wastewater using the reverse osmosis system, the microorganisms contained in the steel plant wastewater will attach to the reverse osmosis membrane as the use time increases, thereby clogging and contaminating the reverse osmosis membrane, reducing the filtration effect and service life of the reverse osmosis membrane, and increasing the difficulty of subsequent cleaning of the reverse osmosis membrane. Therefore, how to reduce the growth of microorganisms to improve the filtration effect of the reverse osmosis membrane has become a technical problem that needs to be solved urgently. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the technical problem to be solved by the embodiments of the present utility model is to provide a flow-through reverse osmosis system for reducing the growth of microorganisms to improve the filtering effect of the reverse osmosis membrane.

[0004] The above-mentioned purpose of the utility model can be achieved by adopting the following technical solutions. The utility model provides a flow-through reverse osmosis system, including:

[0005] A flow pipe, wherein the flow pipe is used to transport the sewage to be treated;

[0006] A sterilization device, the sterilization device is arranged on the flow pipe and is used to sterilize the sewage;

[0007] A storage container, the storage container is connected to the flow pipe and is arranged downstream of the sterilization device;

[0008] A reverse osmosis device, which is arranged downstream of the storage container, and comprises a pure water outlet, a concentrated water outlet, and a sewage inlet connected to the flow pipe;

[0009] A water conveying device is arranged on the flow pipeline, and is used to convey the water in the storage container to the reverse osmosis device.

[0010] In a preferred embodiment of the present invention, the sterilization device is an ultraviolet sterilization device, which is arranged on the flow pipe and can be used to perform ultraviolet sterilization on the water in the flow pipe.

[0011] In a preferred embodiment of the present invention, a heat exchange device is further included, and the heat exchange device is connected to the storage container in a heat exchangeable manner.

[0012] In a preferred embodiment of the present invention, the heat exchange device is a jacket heat exchanger, the jacket heat exchanger is arranged on the storage container, and the jacket heat exchanger has a heat exchange medium inlet and a heat exchange medium outlet.

[0013] In a preferred embodiment of the present invention, the reverse osmosis device includes an RO filter element, and the RO filter element is formed by an RO membrane.

[0014] In a preferred embodiment of the present invention, the water transport device includes a water pump, which is arranged on the flow pipeline and placed between the storage container and the reverse osmosis device.

[0015] In a preferred embodiment of the present invention, a pulsation damper is further included, wherein the pulsation damper is connected to the flow pipe and is placed between the water conveying device and the reverse osmosis device.

[0016] In a preferred embodiment of the utility model, a sampling branch pipe is provided on the flow pipeline, the sampling branch pipe is arranged between the water conveying device and the reverse osmosis device, and a sampling control valve is provided on the sampling branch pipe.

[0017] In a preferred embodiment of the present invention, a first control valve and a second control valve are provided on the flow pipeline, the first control valve is provided between the storage container and the water conveying device, and the second control valve is provided between the water conveying device and the reverse osmosis device.

[0018] In a preferred embodiment of the utility model, it also includes an external discharge pipeline and a water outlet pipeline, the external discharge pipeline is connected to the concentrated water outlet, and an external discharge control valve is provided on the external discharge pipeline; the water outlet pipeline is connected to the pure water outlet, and a flow meter is provided on the water outlet pipeline.

[0019] The technical solution of the utility model has the following significant beneficial effects:

[0020] When the overflow reverse osmosis system of the utility model is used, the sewage to be treated is input into the overflow pipeline, and a sterilization device is arranged on the overflow pipeline. The sterilization device can effectively inactivate microorganisms in the sewage, thereby preventing the problem of membrane fouling caused by the growth of microorganisms. In addition, a storage container is also arranged on the overflow pipeline, and the storage container can be used to store the sewage sterilized by the sterilization device. Then, the sewage in the storage container can be transported to the reverse osmosis device through the water body transport device for reverse osmosis treatment, and the solutes in the sewage can be separated by the reverse osmosis membrane in the reverse osmosis device, thereby playing an efficient filtering role.

[0021] The utility model uses a sterilizing device to inactivate microorganisms or other organic matter in sewage before reverse osmosis filtration, thereby avoiding the problem of membrane fouling caused by the growth of microorganisms in the reverse osmosis device, helping to improve the purification effect and prolong the service life of the reverse osmosis device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] The drawings described herein are only for explanation purposes and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the components in the drawings are only for illustration purposes to help understand the present invention, and are not intended to specifically limit the shapes and proportional dimensions of the components of the present invention. Under the guidance of the present invention, those skilled in the art can select various possible shapes and proportional dimensions to implement the present invention according to specific circumstances.

[0024] Figure 1 It is a structural schematic diagram of an embodiment of the overflow type reverse osmosis system of the utility model.

[0025] Reference numerals of the above drawings:

[0026] 100, flow pipe; 110, first control valve; 120, second control valve;

[0027] 200. Sterilization device;

[0028] 300. Storage containers;

[0029] 400, reverse osmosis device; 410, external discharge pipeline; 411, external discharge control valve; 420, water outlet pipeline; 421, flow meter;

[0030] 500. Water transport device;

[0031] 600, heat exchange device; 610, heat exchange medium inlet; 620, heat exchange medium outlet;

[0032] 700, pulsation damper;

[0033] 800. Sampling branch pipe; 810. Sampling control valve. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] Please refer to Figure 1 As shown, an overflow type reverse osmosis system is provided in an embodiment of the utility model, which includes an overflow pipe 100, a sterilization device 200, a storage container 300, a reverse osmosis device 400 and a water conveying device 500, wherein the overflow pipe 100 is used to convey the sewage to be treated; the sterilization device 200 is arranged on the overflow pipe 100, and is used to disinfect the sewage; the storage container 300 is connected to the overflow pipe 100 and is arranged downstream of the sterilization device 200; the reverse osmosis device 400 is arranged downstream of the storage container 300, and the reverse osmosis device 400 includes a pure water outlet, a concentrated water outlet, and a sewage inlet connected to the overflow pipe 100; the water conveying device 500 is arranged on the overflow pipe 100, and the water conveying device 500 is used to convey the water in the storage container 300 to the reverse osmosis device 400.

[0036] On the whole, when the overflow reverse osmosis system is used, the sewage to be treated is input into the overflow pipe 100, and a sterilizing device 200 is arranged on the overflow pipe 100. The sterilizing device 200 can effectively inactivate the microorganisms in the sewage, thereby preventing the membrane fouling caused by the growth of microorganisms. In addition, a storage container 300 is also arranged on the overflow pipe 100, and the storage container 300 can be used to store the sewage sterilized by the sterilizing device 200. Then, the sewage in the storage container 300 can be transported to the reverse osmosis device 400 through the water body transport device 500 for reverse osmosis treatment, and the solutes in the sewage can be separated by the reverse osmosis membrane in the reverse osmosis device 400, thereby playing an efficient filtering role.

[0037] The utility model uses a sterilization device 200 to inactivate microorganisms or other organic matter in sewage before reverse osmosis filtration, thereby avoiding the problem of membrane fouling caused by the growth of microorganisms in the reverse osmosis device 400, helping to improve the purification effect and extend the service life of the reverse osmosis device 400.

[0038] The inlet of the flow pipe 100 can be connected to an external water inlet valve, and the flow pipe 100 and the external transmission equipment are connected through the water inlet valve, so that the flow rate of sewage input into the flow pipe 100 is controlled by the water inlet valve. The designer can adjust the specific structure of the external transmission equipment according to the use requirements, and no specific restrictions are made here.

[0039] In an embodiment of the present utility model, the sterilization device 200 is an ultraviolet sterilization device 200 , which is disposed on the flow pipe 100 . The ultraviolet sterilization device 200 can be used to perform ultraviolet sterilization on the water in the flow pipe 100 .

[0040] When the reverse osmosis device 400 has a membrane fouling problem, the reverse osmosis device 400 needs to be cleaned to improve the filtering effect, so that the overflow reverse osmosis system needs to be shut down for maintenance, thereby increasing the operation and maintenance costs. In order to reduce the shutdown frequency of the overflow reverse osmosis system, a sterilization device 200 is provided on the overflow pipeline 100. The sterilization device 200 helps to inactivate microorganisms in the sewage in advance, so as to avoid the microorganisms reaching the reverse osmosis device 400 and causing membrane fouling.

[0041] The ultraviolet sterilization device 200 can generate ultraviolet rays, and the ultraviolet radiation of the ultraviolet rays can effectively destroy the chemical bonds of organic matter and the cell structure of microorganisms, so that microorganisms, bacteria, viruses or organic matter in sewage can be removed efficiently.

[0042] The designer can adjust the specific structure of the ultraviolet sterilization device 200 according to the use requirements, and no specific limitation is made here. Preferably, the ultraviolet sterilization device 200 includes a housing, and at least one ultraviolet mercury lamp and a mirror reflector arranged on the housing. The ultraviolet mercury lamp and the mirror reflector cooperate to ensure the intensity and uniformity of ultraviolet radiation, thereby improving the sterilization effect.

[0043] The over-flow reverse osmosis system combines the ultraviolet sterilization device 200 with the reverse osmosis device 400. The sewage is sterilized and filtered during the over-flow process. The operation is simple and there is no need to use additional chemical agents to disinfect microorganisms in the water body. The problem of chemical pollution is eliminated, and the sewage treatment efficiency is significantly improved. It also helps to reduce the volume of the over-flow reverse osmosis system, so that the over-flow reverse osmosis system has the advantages of compact structure and small footprint, and can be better installed in different places and environments.

[0044] In a feasible implementation manner of the present invention, a heat exchange device 600 is further included, and the heat exchange device 600 is connected to the storage container 300 in a heat exchangeable manner.

[0045] By setting a heat exchange device 600 in the storage container 300, the heat exchange device 600 can be used to adjust the sewage problem in the storage container 300, thereby maintaining the stability of the sewage temperature in the overflow reverse osmosis system and avoiding large fluctuations in the sewage temperature that affect the subsequent filtering effect.

[0046] Specifically, the heat exchange device 600 is a jacket heat exchanger, which is disposed on the storage container 300 , and has a heat exchange medium inlet 610 and a heat exchange medium outlet 620 .

[0047] Among them, the designer can adjust the type of heat exchange medium according to the use requirements. For example, the heat exchange medium can be set to cooling water, and no specific limitation is made here.

[0048] Of course, in other feasible embodiments, designers can adjust the specific structure of the heat exchange device 600 according to usage requirements. For example, the heat exchange device 600 can be set to a coil heat exchange structure, which is not specifically limited here.

[0049] In the embodiment of the present utility model, the reverse osmosis device 400 includes an RO filter element, which is formed by an RO membrane. The RO filter element can perform reverse osmosis filtration on sewage, and the RO membrane can separate solutes in the sewage, thereby improving the filtration efficiency.

[0050] Furthermore, by using the sterilization device 200 to perform inactivation and sterilization treatment on the sewage entering the RO filter element in advance, the content of microorganisms in the sewage is significantly reduced, which helps to prevent membrane fouling caused by microbial growth, thereby reducing the difficulty of subsequent RO membrane cleaning.

[0051] Of course, in other feasible embodiments, designers can adjust the specific structure of the reverse osmosis device 400 according to usage requirements, and no specific limitation is made here.

[0052] In an embodiment of the present utility model, the water transport device 500 includes a water pump, which is disposed on the flow pipe 100 and placed between the storage container 300 and the reverse osmosis device 400 .

[0053] By arranging a water pump between the storage container 300 and the reverse osmosis device 400 , the water pump can pump the sewage in the storage container 300 to the reverse osmosis device 400 at high pressure, and the reverse osmosis device 400 can perform reverse osmosis filtration on the sewage.

[0054] Furthermore, the water pump can increase the pressure of sewage when it enters the reverse osmosis device 400, thereby improving the filtering efficiency of the reverse osmosis device 400 on the sewage.

[0055] The designer can adjust the specific model of the water pump according to the use requirements, and no specific restrictions are made here. Preferably, the water pump is a high-pressure pump.

[0056] In the embodiment of the utility model, a pulsation damper 700 is further included. The pulsation damper 700 is connected to the flow pipeline 100 and is placed between the water transport device 500 and the reverse osmosis device 400 .

[0057] By setting a pulsation damper 700 on the flow pipe 100, the pulsation damper 700 can absorb the pulsating pressure and flow fluctuation of the sewage in the flow pipe 100, thereby reducing the sewage pressure and flow fluctuation in the flow-through reverse osmosis system, which helps to improve the operating stability of the system.

[0058] Designers can adjust the specific structure of the pulsation damper 700 according to usage requirements, and no specific restrictions are made here.

[0059] In the embodiment of the utility model, a sampling branch pipe 800 is provided on the flow pipeline 100 . The sampling branch pipe 800 is provided between the water transport device 500 and the reverse osmosis device 400 . A sampling control valve 810 is provided on the sampling branch pipe 800 .

[0060] By arranging the sampling branch pipe 800 on the flow pipe 100 and opening the sampling control valve 810 on the sampling branch pipe 800 , part of the sewage in the flow pipe 100 can be discharged for sampling operation, thereby improving the sampling efficiency.

[0061] Furthermore, by analyzing and studying the sampled water, it is also helpful to timely obtain information such as the content of microorganisms in the water upstream of the reverse osmosis device 400, so that the operator can adjust the operating status of the sterilization device 200 and other equipment in a timely manner.

[0062] In an embodiment of the utility model, a first control valve 110 and a second control valve 120 are provided on the flow pipeline 100. The first control valve 110 is provided between the storage container 300 and the water conveying device 500, and the second control valve 120 is provided between the water conveying device 500 and the reverse osmosis device 400.

[0063] By arranging the first control valve 110 and the second control valve 120 on the flow pipe 100, it is convenient to control the on-off state of the flow pipe 100, thereby having better adjustment flexibility.

[0064] Designers can adjust the specific models of the first control valve 110 and the second control valve 120 according to usage requirements, and no specific limitation is made here.

[0065] In an embodiment of the utility model, it also includes an external discharge pipeline 410 and a water outlet pipeline 420. The external discharge pipeline 410 is connected to the concentrated water outlet, and an external discharge control valve 411 is provided on the external discharge pipeline 410; the water outlet pipeline 420 is connected to the pure water outlet, and a flow meter 421 is provided on the water outlet pipeline 420.

[0066] By connecting the external discharge pipeline 410 to the concentrated water outlet on the reverse osmosis device 400, the concentrated water generated by the reverse osmosis filtration can be quickly discharged for treatment by using the external discharge pipeline 410. In addition, by providing an external discharge control valve 411 on the external discharge pipeline 410, it is convenient to control the on-off state of the external discharge pipeline 410, which has a better control effect.

[0067] Furthermore, by connecting the water outlet pipe 420 to the pure water outlet on the reverse osmosis device 400, the pure water generated by the reverse osmosis filtration can be quickly discharged through the water outlet pipe 420 for recycling, which significantly improves the utilization rate of waste water in the steel production process and plays a role in energy saving and consumption reduction. Furthermore, by providing a flow meter 421 on the water outlet pipe 420, it is helpful to obtain the flow rate of pure water in a timely manner.

[0068] In the implementation mode of the utility model, the designer can adjust the installation mode of each component according to the use requirements, and no specific limitation is made here. Preferably, each pipeline and valve in the overflow reverse osmosis system are connected by SS316 sleeve pipes.

[0069] All articles and references disclosed, including patent applications and publications, are incorporated herein by reference for various purposes. The term "consisting essentially of ... " describing a combination should include determined elements, ingredients, parts or steps and other elements, ingredients, parts or steps that do not substantially affect the basic novel features of the combination. The use of the terms "comprising" or "including" to describe the combination of elements, ingredients, parts or steps here also contemplates the implementation method consisting essentially of these elements, ingredients, parts or steps. Here, by using the term "may", it is intended to illustrate that any attribute described that "may" includes is optional. Multiple elements, ingredients, parts or steps can be provided by a single integrated element, ingredient, part or step. Alternatively, a single integrated element, ingredient, part or step can be divided into separate multiple elements, ingredients, parts or steps. The disclosure "one" or "one" used to describe an element, ingredient, part or step is not said to exclude other elements, ingredients, parts or steps.

[0070] Each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with this technology to understand the content of the utility model and implement it accordingly, and cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A flow-through reverse osmosis system, characterized in that: include: A flow pipe, wherein the flow pipe is used to transport the sewage to be treated; A sterilization device, the sterilization device is arranged on the flow pipe and is used to sterilize the sewage; A storage container, the storage container is connected to the flow pipe and is arranged downstream of the sterilization device; A reverse osmosis device, which is arranged downstream of the storage container, and comprises a pure water outlet, a concentrated water outlet, and a sewage inlet connected to the flow pipe; A water conveying device is arranged on the flow pipeline, and is used to convey the water in the storage container to the reverse osmosis device.

2. The overflow reverse osmosis system according to claim 1, characterized in that: The sterilization device is an ultraviolet sterilization device, which is arranged on the flow pipe and can be used to perform ultraviolet sterilization on the water in the flow pipe.

3. The overflow reverse osmosis system according to claim 1, characterized in that: It also includes a heat exchange device, which is connected to the storage container in a heat exchangeable manner.

4. The overflow reverse osmosis system according to claim 3, characterized in that: The heat exchange device is a jacket heat exchanger, which is arranged on the storage container and has a heat exchange medium inlet and a heat exchange medium outlet.

5. The overflow reverse osmosis system according to claim 1, characterized in that: The reverse osmosis device comprises an RO filter element, and the RO filter element is formed by an RO membrane.

6. The overflow reverse osmosis system according to claim 1, characterized in that: The water body conveying device comprises a water pump, which is arranged on the flow pipe and placed between the storage container and the reverse osmosis device.

7. The overflow reverse osmosis system according to claim 1, characterized in that: It also includes a pulsation damper, which is connected to the flow pipe and is placed between the water conveying device and the reverse osmosis device.

8. The overflow reverse osmosis system according to claim 1, characterized in that: A sampling branch pipe is provided on the flow pipeline, the sampling branch pipe is arranged between the water conveying device and the reverse osmosis device, and a sampling control valve is provided on the sampling branch pipe.

9. The overflow reverse osmosis system according to claim 1, characterized in that: The flow pipe is provided with a first control valve and a second control valve, wherein the first control valve is provided between the storage container and the water conveying device, and the second control valve is provided between the water conveying device and the reverse osmosis device.

10. The overflow reverse osmosis system according to claim 1, characterized in that: It also includes an external discharge pipeline and a water outlet pipeline. The external discharge pipeline is connected to the concentrated water outlet, and an external discharge control valve is arranged on the external discharge pipeline; the water outlet pipeline is connected to the pure water outlet, and a flow meter is arranged on the water outlet pipeline.

Images