Quantitative filling device for reverse osmosis membrane scale inhibitor

Abstract

The utility model discloses a quantitative filling device for a reverse osmosis membrane scale inhibitor, and relates to the technical field of filling devices. The device comprises a rack, a material storage barrel, a quantitative conveying mechanism and a collecting box are arranged on the rack, a lifting plate is arranged on the rack in a sliding mode, a spray head is arranged on the lifting plate, chemicals in the material storage barrel are quantitatively conveyed into the spray head through the quantitative conveying mechanism, liquid outlet holes are formed in the peripheral side of the bottom end of the spray head, and the liquid outlet holes are communicated with the collecting box. A blocking block is arranged at the bottom end of the spray head, a collecting barrel is arranged on the lifting plate in a sliding mode, a through hole and a collecting cavity which are communicated are formed in the collecting barrel, the blocking block is matched with the through hole in an inserted connection mode, a liquid discharging pipe is communicated with the interior of the collecting cavity, and the free end of the liquid discharging pipe corresponds to the collecting box. When the quantitative filling device is used for quantitative filling of the reverse osmosis membrane scale inhibitor, filling environment pollution and unnecessary waste caused by dropping of the scale inhibitor can be avoided, the filling environment is kept clean and tidy, meanwhile, waste of the scale inhibitor is reduced, and therefore the quantitative filling device is more practical.

Description

Technical Field

[0001] This utility model relates to the field of filling device technology, specifically to a quantitative filling device for reverse osmosis membrane antiscalant. Background Technology

[0002] Reverse osmosis membrane is an artificial semi-permeable membrane with certain characteristics, made by simulating biological semi-permeable membranes. It is the core component of reverse osmosis technology. Antiscalant is a class of agents that can disperse sparingly soluble inorganic salts in water, prevent or interfere with the precipitation and scaling of sparingly soluble inorganic salts on metal surfaces, and maintain good heat transfer performance of metal equipment. Reverse osmosis membrane antiscalant is a chemical agent used to prevent scaling on the surface of reverse osmosis membrane.

[0003] In the production process of reverse osmosis membrane antiscalant, a filling process is required to quantitatively fill the antiscalant into containers and seal them for subsequent transportation and sales. In the existing quantitative filling devices, most of them insert the nozzle into the container and spray the antiscalant from the bottom of the nozzle. After the nozzle is withdrawn from the container, some of the agent tends to adhere to the nozzle and form an accumulation, which then drips off in liquid form. When the container is moved, the dripping agent not only pollutes the filling environment but also causes unnecessary waste. Therefore, a quantitative filling device for reverse osmosis membrane antiscalant is proposed. Utility Model Content

[0004] The purpose of this invention is to address the technical problem that in most existing quantitative filling devices, the nozzle is inserted into the container, and the reverse osmosis membrane antiscalant is sprayed from the bottom of the nozzle. After the nozzle is withdrawn from the container, some of the agent tends to adhere to the nozzle and accumulate, and then drips down in liquid form. When the container is moved, the dripping agent not only pollutes the filling environment but also causes unnecessary waste. This invention provides a quantitative filling device for reverse osmosis membrane antiscalant.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0006] A reverse osmosis membrane antiscalant quantitative filling device includes a frame, on which a storage tank, a quantitative conveying mechanism, and a collection box are mounted. A lifting plate is slidably mounted on the frame, and a nozzle is mounted on the lifting plate. The quantitative conveying mechanism quantitatively conveys the agent from the storage tank to the nozzle. A liquid outlet is opened on the periphery of the bottom end of the nozzle, and a sealing block is provided at the bottom end of the nozzle. A collection cylinder is slidably mounted on the lifting plate. The collection cylinder has a through hole and a collection cavity that are connected. The sealing block and the through hole are inserted and matched. A drain pipe is connected to the collection cavity, and the free end of the drain pipe corresponds to the collection box.

[0007] Furthermore, the quantitative conveying mechanism includes a conveying cylinder and a hydraulic push rod both mounted on the frame. The conveying cylinder and the storage tank are connected by an inlet pipe. A piston rod connected to the movable end of the hydraulic push rod is slidably mounted inside the conveying cylinder. A conveying pipe is connected to the conveying cylinder. A one-way valve is installed on both the inlet pipe and the conveying pipe. The free end of the conveying pipe is connected to the nozzle.

[0008] Furthermore, a return spring is provided between the collecting cylinder and the lifting plate.

[0009] Furthermore, the sealing block is provided with an annular groove, and a sealing ring that is interference-fitted with the through hole is provided in the annular groove.

[0010] Furthermore, a ring plate is provided at the bottom end of the collecting cylinder.

[0011] Furthermore, the sealing block is constructed with a guide cone surface, and the bottom end of the nozzle is connected to the guide cone surface.

[0012] Furthermore, the collection chamber is constructed with a transition cone surface corresponding to the guide cone surface, and the bottom surface of the collection chamber is inclined with the lower part facing the drain pipe.

[0013] Furthermore, the frame is provided with a positioning groove, and the frame is equipped with two symmetrically distributed clamping rods that slide synchronously in opposite directions.

[0014] The beneficial effects of this utility model are as follows:

[0015] This invention avoids environmental pollution and unnecessary waste caused by dripping of the antiscalant during quantitative filling of reverse osmosis membranes, keeping the filling environment clean and tidy, and reducing agent waste, thus making it more practical. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural view of the present invention;

[0017] Figure 2 This is a three-dimensional sectional view of the present invention;

[0018] Figure 3 This is a utility model Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 This is a utility model Figure 2 Enlarged view of point B in the middle;

[0020] Figure 5 This is a utility model Figure 2 A magnified view of point C in the middle.

[0021] Reference numerals: 1. Frame; 2. Storage tank; 3. Collection box; 4. Lifting plate; 5. Nozzle; 6. Liquid outlet; 7. Sealing block; 8. Collection cylinder; 9. Through hole; 10. Collection chamber; 11. Drain pipe; 12. Conveying cylinder; 13. Hydraulic push rod; 14. Liquid inlet pipe; 15. Piston rod; 16. Conveying pipe; 17. One-way valve; 18. Return spring; 19. Annular groove; 20. Sealing ring; 21. Ring plate; 22. Guide cone surface; 23. Transition cone surface; 24. Positioning groove; 25. Clamping rod. Detailed Implementation

[0022] 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.

[0023] like Figures 1-5 As shown, an embodiment of the present invention discloses a quantitative filling device for reverse osmosis membrane antiscalant, comprising a frame 1, a storage tank 2, a quantitative conveying mechanism, and a collection box 3, all mounted on the frame 1. The storage tank 2 is fixed to the frame 1 and is used to store reverse osmosis membrane antiscalant. The collection box 3 is placed on the frame 1, and its top is open. A lifting plate 4 is slidably mounted on the frame 1. A vertically oriented cylinder push rod is fixed to the frame 1, and its movable end is fixedly connected to the lifting plate 4. By extending or retracting the movable end of the cylinder push rod, the lifting plate 4 is driven to slide downwards or upwards. A nozzle 5 is mounted on the lifting plate 4, and the nozzle 5 is vertically oriented and fixed to the lifting plate 4. The quantitative conveying mechanism quantitatively conveys the medicine in the storage tank 2 to the nozzle 5. The nozzle 5 has a liquid outlet hole 6 on the bottom periphery. The nozzle 5 has a sealing block 7 at the bottom. The sealing block 7 is fixed to the bottom of the nozzle 5 and the two are coaxially distributed. The collection cylinder 8 is slidably arranged on the lifting plate 4. The collection cylinder 8 slides in the vertical direction. The collection cylinder 8 has a through hole 9 and a collection cavity 10. The collection cylinder 8, through hole 9 and collection cavity 10 are all coaxially distributed with the nozzle 5. The nozzle 5 can pass through the through hole 9. The sealing block 7 and the through hole 9 are inserted and matched. The collection cavity 10 is connected to the drain pipe 11. The free end of the drain pipe 11 corresponds to the collection box 3. The drain pipe 11 is L-shaped and fixed on the collection cylinder 8.

[0024] In the initial state, the lifting plate 4 and the collecting cylinder 8 are at their initial high positions, and the sealing block 7 and the through hole 9 form an insertion seal. During the filling operation, the operator positions the container to be filled at the designated position on the frame 1, ensuring that the container opening and the nozzle 5 remain coaxial. As the cylinder push rod drives the lifting plate 4 downward, the lower end of the collecting cylinder 8 first forms a contact limit with the edge of the container opening. As the lifting plate 4 continues to move downward, the collecting cylinder 8 and the lifting plate 4 slide relative to each other, the sealing block 7 gradually disengages from the through hole 9, and the nozzle 5 simultaneously penetrates the through hole 9 and extends into the container to a preset depth. When the nozzle 5 reaches the set filling position, the quantitative conveying mechanism is activated, quantitatively conveying the medicine in the storage tank 2 into the nozzle 5. The medicine is sprayed radially and evenly onto the inner wall of the container through the liquid outlet 6. This diffusion-type liquid outlet method can effectively avoid splashing caused by direct liquid jet. During the filling process, the lifting plate 4 is driven to slowly rise at an appropriate speed, maintaining a constant distance between the nozzle 5 and the liquid surface to ensure filling accuracy. At this time, the collection cylinder 8 maintains contact with the container due to its own weight. After the quantitative delivery is completed, the cylinder push rod drives the lifting plate 4 to rise a second time, and the nozzle 5 gradually exits the container as the lifting plate 4 rises. When the end of the nozzle 5 is raised to near the container opening, the sealing block 7 and the through hole 9 re-establish a plug-in fit, achieving immediate closure of the liquid outlet channel of the nozzle 5. Then, the lifting plate 4 drives the collection cylinder 8 to move upward away from the container. During this stage, the drug droplets remaining on the outer wall of the nozzle 5 will be intercepted by the collection chamber 10 and finally guided to the collection tank 3 for temporary storage through the L-shaped drain pipe 11.

[0025] In summary, this invention can avoid environmental pollution and unnecessary waste caused by dripping of the antiscalant during quantitative filling of reverse osmosis membranes, keeping the filling environment clean and tidy, while reducing agent waste, thus making it more practical.

[0026] like Figures 2-3 As shown, the specific structure of the quantitative conveying mechanism of this utility model is disclosed. The quantitative conveying mechanism includes a conveying cylinder 12 and a hydraulic push rod 13, both of which are mounted on the frame 1. The conveying cylinder 12 and the hydraulic push rod 13 are both fixed horizontally on the frame 1. The conveying cylinder 12 and the storage tank 2 are connected through an inlet pipe 14. A piston rod 15, which is connected to the movable end of the hydraulic push rod 13, is slidably mounted inside the conveying cylinder 12. The piston rod 15 slides horizontally and is fixedly connected to the movable end of the hydraulic push rod 13. A conveying pipe 16 is connected to the conveying cylinder 12. The conveying pipe 16 includes a rigid pipe and a flexible pipe. A one-way valve 17 is provided on both the inlet pipe 14 and the conveying pipe 16. The two one-way valves 17 have opposite conduction directions. The reverse osmosis membrane antiscalant in the storage tank 2 can only enter the conveying cylinder 12 through the inlet pipe 14. The reverse osmosis antiscalant in the conveying cylinder 12 can only enter the conveying pipe 16. The free end of the conveying pipe 16 is connected to the nozzle 5. The rigid pipe is connected to the conveying cylinder 12, and the flexible pipe is connected to the nozzle 5.

[0027] Referring to the above, in the initial state, the movable end of the hydraulic push rod 13 extends, and the piston rod 15 is in the initial position. During filling, the movable end of the hydraulic push rod 13 is retracted, causing the piston rod 15 to slide to the limit position, creating a negative pressure environment inside the conveying cylinder 12. The reverse osmosis membrane antiscalant in the storage tank 2 enters the conveying cylinder 12 through the inlet pipe 14. Then, the movable end of the hydraulic push rod 13 extends, causing the piston rod 15 to slide to the initial position, pushing the reverse osmosis membrane antiscalant in the conveying cylinder 12 into the conveying pipe 16. After that, the reverse osmosis membrane antiscalant enters the nozzle 5 through the conveying pipe 16, so as to realize the quantitative delivery of the agent in the storage tank 2 to the nozzle 5.

[0028] like Figure 4 As shown, a further technical solution of this utility model is disclosed: a reset spring 18 is provided between the collecting cylinder 8 and the lifting plate 4. The reset spring 18 is vertical and its two ends are fixedly connected to the collecting cylinder 8 and the lifting plate 4 respectively.

[0029] Referring to the above, in the initial state, the return spring 18 is in the natural state. When the collecting cylinder 8 and the lifting plate 4 slide relative to each other, the return spring 18 is squeezed. Through the elastic potential energy of the return spring 18, the collecting cylinder 8 and the container are kept in close contact. When the lifting plate 4 moves upward for the second time, the return spring 18 returns to the natural state. The collecting cylinder 8 slides due to the elastic potential energy, thus preventing the collecting cylinder 8 from getting stuck.

[0030] like Figure 5 As shown, a further technical solution of the present utility model is disclosed. The sealing block 7 is constructed with an annular groove 19. The annular groove 19 and the sealing block 7 are coaxially distributed. A sealing ring 20 that is interference-fitted with the through hole 9 is provided in the annular groove 19. The sealing ring 20 is fixed in the annular groove 19. The diameter of the annular groove 19 is larger than the diameter of the through hole 9.

[0031] Referring to the above, when the sealing block 7 and the through hole 9 form an insertion seal, the sealing ring 20 deforms and adheres tightly to the inner wall of the through hole 9. Through the cooperation of the annular groove 19 and the sealing ring 20, the sealing performance is further improved.

[0032] like Figure 5 As shown, a further technical solution of the present utility model is disclosed: a ring plate 21 is provided at the bottom end of the collecting cylinder 8, and the ring plate 21 is fixed at the bottom end of the collecting cylinder 8 and the two are coaxially distributed.

[0033] Referring to the above, when the lower end of the collecting cylinder 8 forms a contact limit with the edge of the container opening, the ring plate 21 is located inside the container. When the sealing block 7 and the through hole 9 re-form an insertion fit, some medicine may adhere to the lower end of the collecting cylinder 8 and the lower end of the sealing block 7. At this time, the setting of the ring plate 21 can prevent the adhered medicine from flowing horizontally and dripping into the container.

[0034] like Figure 5 As shown, a further technical solution of this utility model is disclosed: the sealing block 7 is constructed with a guide cone surface 22, and the bottom end of the nozzle 5 is connected to the guide cone surface 22.

[0035] Referring to the above, when the agent flows out through the outlet hole 6, the agent can be guided by the guide cone surface 22 to reduce the possibility of the agent adhering to the sealing block 7.

[0036] like Figure 5 As shown, a further technical solution of the present invention is disclosed. The collection cavity 10 is constructed with a transition cone surface 23 corresponding to the guide cone surface 22. The bottom surface of the collection cavity 10 is inclined and the lower part faces the drain pipe 11.

[0037] Referring to the above, when the drug droplets remaining on the outer wall of the nozzle 5 are intercepted by the collection chamber 10, the drug droplets are guided by the cooperation of the transition cone surface 23 and the guide cone surface 22, so that the drug droplets can smoothly enter the collection chamber 10. The bottom surface of the collection chamber 10 is inclined and the lower part faces the drain pipe 11, so that the drug in the collection chamber 10 can be guided and smoothly enter the drain pipe 11.

[0038] like Figure 1 As shown, a further technical solution of this utility model is disclosed. The frame 1 is provided with a positioning groove 24, which is coaxially distributed with the nozzle 5. The frame 1 is equipped with two symmetrically distributed clamping rods 25 that slide synchronously in opposite directions. The clamping rods 25 slide in the horizontal direction. A horizontally oriented positive and negative screw is rotatably provided on the frame 1. The two clamping rods 25 are threadedly engaged with the positive and negative thread sections of the positive and negative screws, respectively. A drive motor connected to the output shaft and the positive and negative screws is fixed on the frame 1. When the output shaft of the drive motor rotates forward or reverse, it drives the positive and negative screws to rotate together. The two clamping rods 25 slide synchronously in opposite directions to move closer or further apart due to the action of the positive and negative threads.

[0039] Referring to the above, in the initial state, the two clamping rods 25 are far apart. During filling, the container to be filled is placed in the positioning groove 24, and the two clamping rods 25 are driven to slide synchronously in opposite directions until they are close to each other, until both clamping rods 25 are in contact with the filling container to form a centered clamping and fixing of the filling container. At this time, the container opening and the nozzle 5 are coaxial, which not only facilitates subsequent filling operations but also improves the stability of use. Conversely, after filling is completed, the two clamping rods 25 are driven to slide synchronously in opposite directions until they are far apart, and then the container is moved away from the positioning groove 24.

[0040] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A quantitative filling device for reverse osmosis membrane antiscalant, characterized in that, The device includes a frame (1), on which a storage tank (2), a quantitative conveying mechanism, and a collection box (3) are provided. A lifting plate (4) is slidably provided on the frame (1), and a nozzle (5) is provided on the lifting plate (4). The quantitative conveying mechanism quantitatively conveys the agent in the storage tank (2) to the nozzle (5). A liquid outlet hole (6) is opened on the bottom periphery of the nozzle (5). A sealing block (7) is provided at the bottom of the nozzle (5). A collection cylinder (8) is slidably provided on the lifting plate (4). A through hole (9) and a collection chamber (10) are constructed on the collection cylinder (8). The sealing block (7) and the through hole (9) are inserted and matched. A drain pipe (11) is connected in the collection chamber (10). The free end of the drain pipe (11) corresponds to the collection box (3).

2. The reverse osmosis membrane antiscalant quantitative filling device according to claim 1, characterized in that, The quantitative conveying mechanism includes a conveying cylinder (12) and a hydraulic push rod (13) both mounted on the frame (1). The conveying cylinder (12) and the storage tank (2) are connected by an inlet pipe (14). A piston rod (15) connected to the movable end of the hydraulic push rod (13) is slidably mounted inside the conveying cylinder (12). A conveying pipe (16) is connected to the conveying cylinder (12). A one-way valve (17) is mounted on both the inlet pipe (14) and the conveying pipe (16). The free end of the conveying pipe (16) is connected to the nozzle (5).

3. The reverse osmosis membrane antiscalant quantitative filling device according to claim 1, characterized in that, A return spring (18) is provided between the collecting cylinder (8) and the lifting plate (4).

4. The reverse osmosis membrane antiscalant quantitative filling device according to claim 1, characterized in that, The sealing block (7) has an annular groove (19) and a sealing ring (20) that is interference-fitted with the through hole (9) is provided in the annular groove (19).

5. The reverse osmosis membrane antiscalant quantitative filling device according to claim 1, characterized in that, The bottom end of the collecting cylinder (8) is provided with a ring plate (21).

6. The reverse osmosis membrane antiscalant quantitative filling device according to claim 1, characterized in that, The sealing block (7) is provided with a guide cone surface (22), and the bottom end of the nozzle (5) is connected to the guide cone surface (22).

7. The reverse osmosis membrane antiscalant quantitative filling device according to claim 6, characterized in that, The collection chamber (10) is constructed with a transition cone (23) corresponding to the guide cone (22), and the bottom surface of the collection chamber (10) is inclined and the lower part faces the drain pipe (11).

8. The reverse osmosis membrane antiscalant quantitative filling device according to claim 1, characterized in that, The frame (1) is provided with a positioning groove (24), and the frame (1) is provided with two symmetrically distributed clamping rods (25) that slide synchronously in opposite directions.

Images