Medicament quantifying device for chemical cleaning of reverse osmosis membrane

Abstract

The utility model provides a medicament quantifying device for chemical cleaning of reverse osmosis membrane, which comprises a medicament feeder, a medicament feeding pipe and a medicament storage box, the medicament feeder is fixedly provided with the medicament feeding pipe and is communicated with the medicament storage box through the medicament feeding pipe, and the medicament storage box is fixedly arranged on the medicament feeding pipe; complex operation is not needed, the purpose of quantitative dosing is achieved through the flow speed of liquid, when the liquid flows in the dosing device, the liquid drives the rotor in the dosing device to rotate, the rotor starts the dosing pipe, and after the rotor rotates to a certain degree, the dosing pipe is closed. According to the cleaning device, the chemical feeding pipe can convey chemicals in the chemical storage box into the chemical feeder, then the chemicals are driven by the follow-up rotor, the chemicals and cleaning water are combined, the chemicals and the cleaning water are injected into the cleaning box together in the follow-up process, the mode is simpler and more reasonable, and the labor intensity of workers can be reduced conveniently.

Description

Technical Field

[0001] The utility model belongs to the technical field of quantitative dosing of medicaments, in particular to a medicament quantitative device for chemical cleaning of reverse osmosis membranes. Background Art

[0002] Reverse osmosis membrane filtration is mainly used in reverse osmosis systems. In actual use, it is inevitable that it will come into contact with scaling ions, trace amounts of suspended solids, a small amount of microorganisms, etc. With long-term operation, a large amount of dirt will inevitably be deposited on the reverse osmosis membrane, and the membrane flux will drop rapidly, thereby affecting the normal water supply of the reverse osmosis system. In severe cases, the reverse osmosis membrane will be blocked, affecting normal industrial production. Therefore, the cleaning technology of the reverse osmosis membrane is particularly important.

[0003] Currently, dosing devices for chemical cleaning of reverse osmosis membranes cannot directly and quickly add chemicals, and require workers to perform relatively complex operations. For example, a dosing device for chemical cleaning of reverse osmosis membranes described in Chinese utility model patent document No. CN219463036U requires workers to set a corresponding flow rate on the solenoid valve, through which the chemicals flow into the water inlet pipe. When the amount of chemicals is sufficient, the solenoid valve automatically closes. After checking the amount of chemicals used, the worker opens the water inlet valve. The above operations are complicated, and the overall structural design needs to be improved.

[0004] Therefore, it is very necessary to invent a medicament quantitative device for chemical cleaning of reverse osmosis membrane. Summary of the Invention

[0005] In order to solve the above technical problems, the utility model provides a chemical dosing device for chemical cleaning of reverse osmosis membranes, comprising a chemical dosing device, a chemical delivery pipe and a chemical storage box, wherein the chemical dosing device is fixedly mounted with the chemical delivery pipe and is connected to the chemical storage box through the chemical delivery pipe, and the chemical storage box is fixedly mounted on the chemical delivery pipe;

[0006] The medicine doser includes a medicine dosing mixing box, a connecting pipe, a quantitative dosing rotor, a ratchet, a pawl, a vortex spring and a fixed shaft. The connecting pipe is symmetrically fixedly installed on the medicine dosing mixing box, and a quantitative dosing rotor is rotatably installed inside the medicine dosing mixing box. The central axis of the quantitative dosing rotor rotates through the medicine dosing mixing box and is fixedly connected to the ratchet outside the dosing mixing box. The ratchet is meshed and connected with the pawl. The pawl is elastically connected to the fixed shaft through the vortex spring. The fixed shaft is fixedly installed on the medicine dosing mixing box. The medicine dosing mixing box is fixedly connected to the medicine delivery pipe and is connected to the medicine storage box through the medicine delivery pipe.

[0007] The medicine delivery pipe includes a medicine delivery pipe, a valve plate, a valve head, a tray and a delivery hole. The two ends of the medicine delivery pipe are respectively fixedly connected to the dosing mixing box and the medicine storage box. A valve plate is fixedly installed at the lower part of the medicine delivery pipe, a valve head is provided below the valve plate, a tray is provided below the valve head, and a plurality of delivery holes are opened on the valve head.

[0008] Preferably, the quantitative dosing rotor is a "cross" shaped structure, contacts the inner wall of the dosing mixing box, and is rotatably mounted at one side of the dosing mixing box.

[0009] Preferably, the ratchet is arranged below the outside of the dosing mixing box, and a fixed shaft is provided on one side of the ratchet, the fixed shaft is fixedly connected to the inner end of the vortex spring, the outer end of the vortex spring is fixedly connected to the pawl, and the pawl is provided with a notch required for the installation of the vortex spring.

[0010] Preferably, a through hole is provided at the center of the valve plate fixedly installed inside the medicine delivery tube. The through hole is not on the same vertical line as the delivery hole, and a plurality of the delivery holes are distributed in a circular array.

[0011] Preferably, the tray is fixedly installed at the lower part of the medicine delivery tube, and the valve head is slidably installed between the valve plate and the tray, and the valve head is a conical boss structure.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The utility model does not require complicated operations, but achieves the purpose of quantitative dosing through the flow rate of the liquid. When the liquid flows inside, the liquid drives the rotor inside the medicine doser to rotate, and the rotor starts the medicine delivery pipe. After each rotation of the rotor to a certain extent, the medicine delivery pipe will transport the medicine inside its medicine storage box to the inside of the medicine doser, and then the medicine enters the medicine under the drive of the subsequent rotor. The medicine is combined with its cleaning water and is subsequently injected into the cleaning box together. This method is simpler and more reasonable, and is convenient for reducing the labor intensity of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the bottom structure of the utility model as a whole.

[0016] Figure 3 It is a partial cross-sectional structural diagram of the medicine doser of the utility model.

[0017] Figure 4 It is a schematic diagram of the half-section structure of the medicine delivery tube of the utility model.

[0018] Figure 5 It is a schematic diagram of the half-section structure of the medicine doser of the utility model.

[0019] In the picture:

[0020] Medicine doser 1, dosing mixing box 11, connecting pipe mouth 12, quantitative dosing rotor 13, ratchet 14, pawl 15, vortex spring 16, fixed shaft 17, medicine delivery pipe 2, medicine delivery pipe 21, valve plate 22, valve head 23, tray 24, delivery hole 25, medicine storage box 3. DETAILED DESCRIPTION

[0021] In order to help those skilled in the art better understand the present invention, the following will 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 those skilled in the art without creative work should fall within the scope of protection of the present invention.

[0022] In the description of the embodiments, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In the description of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or it can be a communication between the internal parts of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0023] As attached Figure 1 To the attached Figure 5 As shown:

[0024] The utility model provides a chemical dosing device for chemical cleaning of reverse osmosis membranes, comprising a chemical dosing device 1, a chemical delivery pipe 2 and a chemical storage box 3. The chemical dosing device 1 is fixedly mounted with the chemical delivery pipe 2 and is connected to the chemical storage box 3 through the chemical delivery pipe 2. The chemical storage box 3 is fixedly mounted on the chemical delivery pipe 2, and the chemical storage box 3 stores chemical required for cleaning the reverse osmosis membrane.

[0025] The drug doser 1 includes a dosing mixing box 11, a connecting pipe 12, a quantitative dosing rotor 13, a ratchet 14, a pawl 15, a vortex spring 16 and a fixed shaft 17. The connecting pipe 12 is symmetrically fixedly installed on the dosing mixing box 11, and a quantitative dosing rotor 13 is rotatably installed inside the dosing mixing box 11. The central axis of the quantitative dosing rotor 13 rotates through the dosing mixing box 11 and is fixedly connected to the ratchet 14 outside it. The ratchet 14 is meshed and connected with the pawl 15. The pawl 15 is elastically connected to the fixed shaft 17 through the vortex spring 16. The fixed shaft 17 is fixedly installed on the dosing mixing box 11. The dosing mixing box 11 is fixedly connected to the drug delivery pipe 2 and is connected to the drug storage box 3 through the drug delivery pipe 2. The two connecting pipes 12 of the drug doser 1 are respectively connected to the water injection pipe and the water injection pipe of the cleaning box.

[0026] The medicine delivery pipe 2 includes a medicine delivery pipe 21, a valve plate 22, a valve head 23, a tray 24 and a delivery hole 25. The two ends of the medicine delivery pipe 21 are fixedly connected to the dosing mixing box 11 and the medicine storage box 3 respectively. A valve plate 22 is fixedly installed at the lower part of the medicine delivery pipe 21, a valve head 23 is provided below the valve plate 22, a tray 24 is provided below the valve head 23, and a plurality of delivery holes 25 are opened on the valve head 23. The medicine delivery pipe 2 is used to inject the medicine into the interior of the medicine doser 1. Example

[0027] The flow rate of the cleaning liquid in the water injection pipe into the inside of the drug dosing device 1 is in a constant state, which is used to ensure that the quantitative liquid drives the rotation speed of the dosing rotor 13. The faster the rotation speed, the smaller the dosage of the drug injection. Conversely, the larger the dosage of the drug injection. If it is difficult to achieve a constant flow rate of the liquid due to the number of turns in the water injection pipe or the influence of the pipe length, and the dosing rotor 13 cannot be driven to reach the specified rotation speed, a motor that allows idling is fixedly installed on the outside of the dosing mixing box 11, and the output end of the motor is fixedly connected to the dosing rotor 13. The dosing rotor 13 can be forced to reach the specified rotation speed by the motor, and the purpose of drug dosing can also be directly achieved by the drive of the motor, which is used to improve the stability and flexibility of the overall dosing. Example

[0028] Specifically, the quantitative dosing rotor 13 has a "cross" structure, contacts the inner wall of the dosing mixing box 11, and is rotatably installed on one side of the interior of the dosing mixing box 11. The quantitative dosing rotor 13 and the inner wall of the dosing mixing box 11 can form a constant sealed space for injecting the medicine.

[0029] Specifically, the ratchet 14 is arranged at the lower part of the outside of the dosing mixing box 11, and a fixed shaft 17 is provided on one side of the ratchet 14. The fixed shaft 17 is fixedly connected to the inner end of the vortex spring 16, and the outer end of the vortex spring 16 is fixedly connected to the pawl 15. The pawl 15 is provided with a slot required for the installation of the vortex spring 16. The ratchet mechanism of the ratchet 14, the pawl 15, the vortex spring 16 and the fixed shaft 17 is used to prevent the quantitative dosing rotor 13 from rotating in the opposite direction.

[0030] Specifically, a through hole is provided in the center of the valve plate 22 fixedly installed inside the drug delivery pipe 21. The through hole is not on the same vertical line as the delivery hole 25. Several delivery holes 25 are distributed in a circular array. After the drug enters the drug delivery pipe 21, it passes through the valve plate 22 and the delivery hole 25 and enters the dosing mixing box 11.

[0031] Specifically, the tray 24 is fixedly installed at the lower part of the medicine delivery tube 21, and the valve head 23 is slidably installed between the valve plate 22 and the tray 24. The valve head 23 is a conical boss structure. Example

[0032] When the cleaning liquid is injected into the cleaning box, the cleaning liquid enters the interior of the dosing mixing box 11 through the connecting pipe 12. After the liquid enters the interior, it drives the quantitative dosing rotor 13 inside, and the quantitative dosing rotor 13 rotates. During the rotation process, when the quantitative dosing rotor 13 does not contact the valve head 23 of the drug delivery pipe 2, the valve head 23 falls downward under the action of gravity, and the drug enters the drug delivery pipe 21. The drug passes through the through hole of the valve plate 22 and enters the upper part of the valve head 23. The hole 25 passes through the valve head 23 and then enters the sealed chamber formed by the dosing mixing box 11 and the quantitative dosing rotor 13. The rotation of the quantitative dosing rotor 13 drives the entering medicine to merge with the cleaning liquid. When the quantitative dosing rotor 13 contacts the valve head 23, the valve head 23 is pushed to move upward, and the valve head 23 contacts the valve plate 22, and blocks the through hole opened in the valve plate 22 to prevent the further entry of the medicine. As the quantitative dosing rotor 13 rotates, the medicine continuously enters it through the medicine delivery pipe 2.

[0033] Utilizing the technical solution described in the utility model, or those skilled in the art designing similar technical solutions inspired by the technical solution of the utility model to achieve the above-mentioned technical effects, all fall within the scope of protection of the utility model.

Claims

1. A chemical dosing device for reverse osmosis membrane chemical cleaning, characterized in that: The invention comprises a medicine doser (1), a medicine delivery pipe (2) and a medicine storage box (3); the medicine doser (1) is fixedly mounted with the medicine delivery pipe (2) and is connected to the medicine storage box (3) via the medicine delivery pipe (2); and the medicine storage box (3) is fixedly mounted on the medicine delivery pipe (2); The drug doser (1) comprises a drug dosing mixing box (11), a connecting pipe (12), a quantitative drug dosing rotor (13), a ratchet (14), a pawl (15), a vortex spring (16) and a fixed shaft (17). The connecting pipe (12) is symmetrically fixedly installed on the drug dosing mixing box (11). The quantitative drug dosing rotor (13) is rotatably installed inside the drug dosing mixing box (11). The central axis of the quantitative drug dosing rotor (13) rotates through the drug dosing mixing box (11) and is fixedly connected to the ratchet (14) outside the drug dosing mixing box. The ratchet (14) is meshed and connected with the pawl (15). The pawl (15) is elastically connected to the fixed shaft (17) through the vortex spring (16). The fixed shaft (17) is fixedly installed on the drug dosing mixing box (11). The drug dosing mixing box (11) is fixedly connected to the drug delivery pipe (2) and is connected to the drug storage box (3) through the drug delivery pipe (2). The medicine delivery pipe (2) comprises a medicine delivery pipe (21), a valve plate (22), a valve head (23), a tray (24) and a delivery hole (25). The two ends of the medicine delivery pipe (21) are fixedly connected to the dosing mixing box (11) and the medicine storage box (3), respectively. A valve plate (22) is fixedly installed at the lower part of the medicine delivery pipe (21). A valve head (23) is provided below the valve plate (22). A tray (24) is provided below the valve head (23). A plurality of delivery holes (25) are provided on the valve head (23).

2. A chemical dosing device for chemical cleaning of reverse osmosis membranes according to claim 1, characterized in that: The quantitative dosing rotor (13) is a cross-shaped structure, and the quantitative dosing rotor (13) contacts the inner wall of the dosing mixing box (11). The quantitative dosing rotor (13) is rotatably mounted on one side of the interior of the dosing mixing box (11).

3. A chemical dosing device for chemical cleaning of reverse osmosis membranes according to claim 1 or 2, characterized in that: The ratchet (14) is arranged below the exterior of the dosing mixing box (11), and a fixed shaft (17) is provided on one side of the ratchet (14). The fixed shaft (17) is fixedly connected to the inner end of the vortex spring (16), and the outer end of the vortex spring (16) is fixedly connected to the pawl (15). The pawl (15) is provided with a notch required for installing the vortex spring (16).

4. The device for chemically cleaning a reverse osmosis membrane according to claim 1, wherein: A through hole is provided at the center of a valve plate (22) fixedly installed inside the medicine delivery tube (21). The through hole is not on the same vertical line as the delivery hole (25), and a plurality of the delivery holes (25) are distributed in a circular array.

5. A chemical dosing device for chemical cleaning of reverse osmosis membranes according to claim 1 or 4, characterized in that: The tray (24) is fixedly mounted below the inside of the medicine delivery tube (21), and the valve head (23) is slidably mounted between the valve plate (22) and the tray (24), and the valve head (23) is a conical boss structure.

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