Reverse osmosis security filter and use method thereof

Abstract

The invention discloses a reverse osmosis security filter and a use method, and relates to the technical field of reverse osmosis systems.The reverse osmosis security filter comprises a security filter body, a water inlet pipe, a water inlet valve, a water outlet pipe, a water outlet valve, a medicament cleaning mechanism and a water washing mechanism, a filter element is installed in the security filter body, and the filter element can filter impurities in water; one end of the water inlet pipe is communicated with the security filter body; the water inlet valve is arranged on the water inlet pipe; one end of the water outlet pipe is communicated with the security filter body; the water outlet valve is arranged on the water outlet pipe; a chemical adding end of the chemical cleaning mechanism is communicated with the water outlet pipe between the water outlet valve and the security filter body so as to add a chemical into the security filter body to soak and clean the filter element; the water conveying end of the washing mechanism is communicated with the water outlet pipe between the water outlet valve and the security filter body so as to convey cleaning water into the security filter body and discharge soaked medicament waste liquid out of the filter element, the structure is simple, the use is convenient, and the service time of the filter element is effectively prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of reverse osmosis systems, and in particular to a reverse osmosis security filter and a use method thereof. Background Art

[0002] The reverse osmosis security filter is a very important pretreatment component in the reverse osmosis system. Its main function is to remove particulate matter, suspended matter and other possible impurities in the water before the water enters the reverse osmosis membrane to protect the reverse osmosis membrane from damage. At the same time, it can ensure water quality, stabilize water output and water quality, maintain the stable operation of the reverse osmosis system, and ensure that the water output and water quality meet the requirements. During the operation of the reverse osmosis system, sometimes due to fluctuations in incoming water quality and poor operation management, microorganisms will multiply in large numbers, produce biological slime, block the surface of the filter element, and produce a large pressure difference, resulting in the filter element running time of 48 to 72 hours. It has to be replaced forcibly. Increase the system operation and maintenance costs. Therefore, when biological contamination occurs, how to extend the service life of the filter element is a difficult problem for the economic operation of the reverse osmosis system. Summary of the invention

[0003] The purpose of the present invention is to provide a reverse osmosis security filter and a method of use to solve the problems existing in the above-mentioned prior art, with a simple structure, easy use, and effectively extending the service life of the filter element.

[0004] To achieve the above object, the present invention provides the following solutions:

[0005] The present invention provides a reverse osmosis security filter, comprising: a security filter body, an inlet pipe, an inlet valve, an outlet pipe, an outlet valve, a chemical cleaning mechanism and a water washing mechanism, wherein a filter element is installed in the security filter body, and the filter element can filter impurities in water; one end of the inlet pipe is connected to the security filter body; the inlet valve is arranged on the inlet pipe; one end of the outlet pipe is connected to the security filter body; the outlet valve is arranged on the outlet pipe; the drug adding end of the chemical cleaning mechanism is connected to the outlet pipe between the outlet valve and the security filter body so as to add chemical into the security filter body to soak and clean the filter element; the water supply end of the water washing mechanism is connected to the outlet pipe between the outlet valve and the security filter body so as to supply cleaning water into the security filter body and remove the chemical waste liquid after soaking from the filter element.

[0006] Preferably, the drug cleaning mechanism includes a cleaning drug tube, a medicine box, a cleaning pump and a cleaning valve. One end of the cleaning drug tube is connected to the medicine box, and the other end is connected to the water outlet pipe between the water outlet valve and the safety filter body. The cleaning pump is arranged on the cleaning drug tube, and the cleaning valve is arranged on the cleaning drug tube.

[0007] Preferably, the agent is a mixture of sodium hypochlorite, sodium hydroxide and a microbial exfoliant.

[0008] Preferably, the water washing mechanism includes a flushing water tank, a flushing pipe and a flushing valve. The flushing pipe is used to connect the flushing water tank with the water outlet valve and the water outlet pipe between the safety filter body. The flushing valve is arranged on the flushing pipe. The height of the flushing water tank is higher than that of the safety filter body.

[0009] Preferably, it also includes a discharge pipe and a discharge valve, the top end of the discharge pipe is connected to the water inlet pipe between the water inlet valve and the safety filter body, and the discharge valve is arranged on the water inlet pipe.

[0010] The present invention also provides a reverse osmosis security filter as described in any one of the above items, characterized in that it includes the following steps:

[0011] When signs of biological contamination are observed in the filter element of the security filter, close the water inlet valve, drain the water in the security filter body and close the water outlet valve;

[0012] Close the flushing valve, and fully mix sodium hypochlorite, sodium hydroxide, and microbial stripping agent with water in a certain proportion in the medicine box to form a medicine; open the cleaning medicine pump and the cleaning valve, and allow the medicine to flow into the safety filter through the cleaning medicine pipe and the outlet pipe in the reverse direction. When the medicine is discharged from the discharge pipe, close the cleaning medicine pump and the cleaning valve, and close the discharge valve at the same time, so that the medicine can soak the filter element for 1 hour;

[0013] After soaking for 1 hour, open the flushing valve and the discharge valve, and the waste liquid of the soaked agent will be discharged through the discharge pipe by flushing the water tank;

[0014] After continuous flushing for 10 minutes, close the flushing valve and the drain valve, and the flushing operation is finished;

[0015] Open the water inlet valve and the water outlet valve, and re-introduce water into the safety filter to restore the safety filter body to normal operation.

[0016] Compared with the prior art, the present invention has achieved the following technical effects:

[0017] The present invention provides a reverse osmosis security filter. By arranging the cooperation of components such as a security filter body, a water inlet pipe, a water inlet valve, a water outlet pipe, a water outlet valve, a chemical cleaning mechanism and a water washing mechanism, when biological contamination occurs in a filter element, chemical cleaning and water washing can be performed in time to effectively remove impurities and biological slime on the surface of the filter element, restore the filtering capacity of the filter element, and extend the service life of the filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in 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 paying creative work.

[0019] Figure 1 A schematic diagram of the structure of the reverse osmosis security filter provided by the present invention;

[0020] In the figure: 1. Safety filter body; 2. Water inlet pipe; 3. Water inlet valve; 4. Water outlet pipe; 5. Water outlet valve; 6. Cleaning medicine pipe; 7. Medicine box; 8. Cleaning pump; 9. Cleaning valve; 10. Flushing water tank; 11. Flushing pipe; 12. Flushing valve; 13. Discharge pipe; 14. Discharge valve. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] The purpose of the present invention is to provide a reverse osmosis security filter and a method of use to solve the problems existing in the above-mentioned prior art, with a simple structure, easy use, and effectively extending the service life of the filter element.

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] Embodiment 1

[0025] This embodiment provides a reverse osmosis security filter, such as Figure 1As shown, it includes: a security filter body 1, a water inlet pipe 2, a water inlet valve 3, a water outlet pipe 4, a water outlet valve 5, a drug cleaning mechanism and a water washing mechanism. A filter element is installed in the security filter body 1, and the filter element can filter impurities in the water; one end of the water inlet pipe 2 is connected to the security filter body 1; the water inlet valve 3 is arranged on the water inlet pipe 2; one end of the water outlet pipe 4 is connected to the security filter body 1; the water outlet valve 5 is arranged on the water outlet pipe 4; the drug adding end of the drug cleaning mechanism is connected to the water outlet pipe 4 between the water outlet valve 5 and the security filter body 1 to add drugs to the security filter body 1 The filter element is soaked and cleaned; the water delivery end of the water washing mechanism is connected with the water outlet pipe 4 between the water outlet valve 5 and the safety filter body 1 to transport cleaning water into the safety filter body 1 and discharge the soaked pharmaceutical waste liquid out of the filter element. By arranging the cooperation of the safety filter body 1, the water inlet pipe 2, the water inlet valve 3, the water outlet pipe 4, the water outlet valve 5, the pharmaceutical cleaning mechanism and the water washing mechanism, when biological contamination occurs to the filter element, the pharmaceutical cleaning and water flushing can be carried out in time to effectively remove impurities and biological slime on the surface of the filter element, restore the filtering capacity of the filter element, and extend the service life of the filter element.

[0026] In a preferred solution of the present embodiment, the reagent cleaning mechanism includes a cleaning medicine tube 6, a medicine box 7, a cleaning pump 8 and a cleaning valve 9. One end of the cleaning medicine tube 6 is connected to the medicine box 7, and the other end is connected to the outlet pipe 4 between the outlet valve 5 and the safety filter body 1. The cleaning pump 8 is arranged on the cleaning medicine tube 6, and the cleaning valve 9 is arranged on the cleaning medicine tube 6. The amount and time of adding the reagent can be accurately controlled to ensure that the reagent can fully soak the filter element and achieve the best cleaning effect. The setting of the cleaning pump 8 can increase the delivery pressure of the reagent, so that the reagent can enter the safety filter body 1 more quickly. The setting of the cleaning valve 9 facilitates the control of the reagent cleaning process and improves the flexibility of operation.

[0027] In a preferred solution of this embodiment, the agent is a mixture of sodium hypochlorite, sodium hydroxide and a microbial stripping agent. Sodium hypochlorite has strong oxidizing properties and can effectively kill microorganisms; sodium hydroxide can adjust the pH of the solution and promote the stripping of microorganisms; and the microbial stripping agent can further enhance the stripping effect of biological slime on the surface of the filter element. The mixed use of the three agents can work synergistically to improve the cleaning effect of biological contamination on the filter element and restore the filtering performance of the filter element.

[0028] In a preferred solution of the present embodiment, the water washing mechanism includes a flushing water tank 10, a flushing pipe 11 and a flushing valve 12. The flushing pipe 11 is used to connect the flushing water tank 10 with the outlet valve 5 and the outlet pipe 4 between the safety filter body 1. The flushing valve 12 is arranged on the flushing pipe 11. The height of the flushing water tank 10 is higher than the safety filter body 1. The height of the flushing water tank 10 is higher than the safety filter body 1. The use of gravity can make the cleaning water flow more smoothly into the safety filter body 1, thereby improving the flushing efficiency. The arrangement of the flushing pipe 11 and the flushing valve 12 facilitates the control of the water flushing process, and the flushing intensity and time can be adjusted according to actual conditions. The design of this water washing mechanism can effectively discharge the waste liquid of the immersion agent from the filter element, and reduce the secondary contamination of the filter element by the residual agent.

[0029] In a preferred solution of this embodiment, the reverse osmosis security filter further includes a discharge pipe 13 and a discharge valve 14. The top of the discharge pipe 13 is connected to the water inlet pipe 2 between the water inlet valve 3 and the security filter body 1. The discharge valve 14 is arranged on the water inlet pipe 2. The arrangement of the discharge pipe 13 and the discharge valve 14 can timely discharge the waste liquid from the security filter body 1 during the process of immersion of the reagent and water flushing, so as to avoid the waste liquid from contaminating the filter element again. At the same time, the control of the discharge valve 14 can conveniently adjust the discharge speed and discharge time, thereby improving the flexibility and safety of the operation.

[0030] Embodiment 2

[0031] This embodiment also provides a reverse osmosis security filter as described above, comprising the following steps:

[0032] When signs of biological contamination are observed in the filter element of the security filter, close the water inlet valve 3, drain the water in the security filter body 1, and then close the water outlet valve 5. Timely closing the water inlet valve 3 and the water outlet valve 5 and draining the water in the security filter body 1 can prevent the further spread of biological contamination and prepare for subsequent cleaning operations. At the same time, this operation step is simple and clear, and easy for operators to master and execute.

[0033] Close the flushing valve 12, and fully mix sodium hypochlorite, sodium hydroxide, and microbial stripping agent with water in a certain proportion in the medicine box 7 to form a medicine; open the cleaning medicine pump and the cleaning valve 9, so that the medicine can enter the security filter in the reverse direction through the cleaning medicine pipe 6 and the outlet pipe 4. When the medicine is discharged from the discharge pipe 13, close the cleaning medicine pump and the cleaning valve 9, and close the discharge valve 14 at the same time, so that the medicine can soak the filter element for 1 hour. Mixing the medicine in a certain proportion can ensure the best cleaning effect of the medicine. The control of the cleaning medicine pump and the cleaning valve 9 can accurately transport the medicine into the security filter body 1 to fully soak the filter element. When the medicine is discharged from the discharge pipe 13, close the cleaning medicine pump, the cleaning valve 9 and the discharge valve 14 to ensure that the medicine stays in the security filter body 1 for a specified time to achieve a better cleaning effect. ;

[0034] After soaking for 1 hour, open the flushing valve 12 and the drain valve 14, and the waste liquid of the soaked medicine will be discharged through the drain pipe 13 through the flushing water tank 10. Opening the flushing valve 12 and the drain valve 14 can timely discharge the waste liquid of the soaked medicine to avoid secondary contamination of the filter element by the waste liquid. The residual medicine and impurities on the surface of the filter element can be further removed by flushing with water from the flushing water tank 10, thereby improving the cleanliness of the filter element;

[0035] After continuous flushing for 10 minutes, close the flushing valve 12 and the discharge valve 14, and the flushing operation is completed. Continuous flushing for 10 minutes can ensure that the waste liquid of the medicine is completely discharged, and at the same time, the filter element can be further cleaned to improve the filtering performance of the filter element. Closing the flushing valve 12 and the discharge valve 14 can end the flushing operation and prepare for the subsequent resumption of normal operation. ;

[0036] Open the water inlet valve 3 and the water outlet valve 5, and re-introduce water into the security filter to restore the normal operation of the security filter body 1. Open the water inlet valve 3 and the water outlet valve 5 to put the security filter body 1 back into use and restore the normal filtering function. This operation step is simple and quick, and can restore the normal operation of the security filter in the shortest time, thereby improving the use efficiency of the equipment.

[0037] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A reverse osmosis security filter, characterized in that: include: A safety filter body, wherein a filter element is installed in the safety filter body, and the filter element can filter impurities in water; A water inlet pipe, one end of which is connected to the safety filter body; A water inlet valve, the water inlet valve is arranged on the water inlet pipe; A water outlet pipe, one end of which is connected to the safety filter body; A water outlet valve, the water outlet valve is arranged on the water outlet pipe; A reagent cleaning mechanism, wherein a reagent adding end of the reagent cleaning mechanism is connected to a water outlet pipe between the water outlet valve and the safety filter body so as to add reagent to the safety filter body to soak and clean the filter element; as well as A water washing mechanism, wherein the water delivery end of the water washing mechanism is connected to the water outlet pipe between the water outlet valve and the safety filter body to deliver washing water into the safety filter body and discharge the soaked pharmaceutical waste liquid out of the filter element.

2. The reverse osmosis security filter according to claim 1, characterized in that: The drug cleaning mechanism includes a cleaning drug tube, a drug box, a cleaning pump and a cleaning valve. One end of the cleaning drug tube is connected to the drug box, and the other end is connected to the water outlet pipe between the water outlet valve and the safety filter body. The cleaning pump is arranged on the cleaning drug tube, and the cleaning valve is arranged on the cleaning drug tube.

3. The reverse osmosis security filter according to claim 2, characterized in that: The agent is a mixture of sodium hypochlorite, sodium hydroxide and a microbial stripping agent.

4. The reverse osmosis security filter according to claim 3, characterized in that: The water washing mechanism includes a flushing water tank, a flushing pipe and a flushing valve. The flushing pipe is used to connect the flushing water tank with the water outlet valve and the water outlet pipe between the safety filter body. The flushing valve is arranged on the flushing pipe. The height of the flushing water tank is higher than that of the safety filter body.

5. The reverse osmosis security filter according to claim 4, characterized in that: It also includes a discharge pipe and a discharge valve. The top end of the discharge pipe is communicated with the water inlet pipe between the water inlet valve and the safety filter body, and the discharge valve is arranged on the water inlet pipe.

6. A reverse osmosis security filter according to any one of claims 1 to 5, characterized in that: The following steps are involved: When signs of biological contamination are observed in the filter element of the security filter, close the water inlet valve, drain the water in the security filter body and close the water outlet valve; Close the flushing valve, and fully mix sodium hypochlorite, sodium hydroxide, and microbial stripping agent with water in a certain proportion in the medicine box to form a medicine; open the cleaning medicine pump and the cleaning valve, and allow the medicine to flow into the safety filter through the cleaning medicine pipe and the outlet pipe in the reverse direction. When the medicine is discharged from the discharge pipe, close the cleaning medicine pump and the cleaning valve, and close the discharge valve at the same time, so that the medicine can soak the filter element for 1 hour; After soaking for 1 hour, open the flushing valve and the discharge valve, and the waste liquid of the soaked agent will be discharged through the discharge pipe by flushing the water tank; After continuous flushing for 10 minutes, close the flushing valve and the drain valve, and the flushing operation is finished; Open the water inlet valve and the water outlet valve, and re-introduce water into the safety filter to restore the safety filter body to normal operation.

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