An apparatus for adding ammonia water in an EDTA chemical cleaning and dosing equipment
By designing lifting components and sealing connection valves, the problems of equipment corrosion and odor emission caused by splashing during ammonia pouring are solved, achieving sealed ammonia feeding and improving equipment safety and the cleanliness of the working environment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI ELECTRIC POWER CHANGKAI IND & TRADE CO LTD
- Filing Date
- 2025-08-27
- Publication Date
- 2026-06-26
Smart Images

Figure CN224410831U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chemical cleaning solution technology, specifically to a device for adding ammonia water in an EDTA chemical cleaning dosing equipment. Background Technology
[0002] In the chemical cleaning process of industrial equipment, EDTA (ethylenediaminetetraacetic acid) is widely used due to its excellent chelating properties. To improve the cleaning effect, ammonia water is usually added to the EDTA solution to adjust the pH value. At present, the dosing system mostly uses independent storage tanks and pumping devices to add the agent. When the solution in the storage tank is used up, the solution needs to be added to it.
[0003] Among them, announcement number CN223015929U discloses an ammonia water addition device for latex glove production, including a storage tank. Two connecting seats are symmetrically fixedly arranged on the side wall of the storage tank. A rotating rod is rotatably connected between the two connecting seats. Two arms are fixedly sleeved on the outside of the rotating rod. One end of the two arms is connected to a material receiving box. One end of the rotating rod moves through the side wall of the connecting seat and is connected to a worm gear. A worm is meshed with one side of the worm gear. A rotating shaft is fixedly inserted at the central axis of the worm. The two ends of the rotating shaft are limited and set on the side wall of the connecting seat by two limiting seats. This structure can reduce the burden on the workers and prevent the irritating odor from overflowing from the feed hopper when the workers approach the feed hopper to add materials, so that the workers will be choked by the strong irritating odor and suffer physical discomfort.
[0004] Although the device does not require manual pouring, ammonia water still needs to be injected into the receiving box and then poured from the receiving box into the storage tank. Because ammonia water is volatile and highly corrosive, splashing may occur during the pouring process, which can easily corrode external equipment and still release some odor, affecting the working environment.
[0005] Therefore, it is necessary to invent a device for adding ammonia water to an EDTA chemical cleaning dosing equipment to solve the above problems. Utility Model Content
[0006] The purpose of this invention is to provide an ammonia water addition device for EDTA chemical cleaning dosing equipment, in order to solve the problem that the pouring process in the previous technology easily caused ammonia water to splash out, which in turn caused corrosion to external equipment, and some odor was still emitted, affecting the working environment.
[0007] To achieve the above objectives, this utility model provides the following technical solution: an ammonia water addition device in an EDTA chemical cleaning dosing equipment, comprising an equipment platform, a storage tank fixedly installed on the upper surface of the equipment platform, a first connecting valve fixedly connected to the side of the storage tank near the upper end, a lifting assembly provided on the front side of the equipment platform, the lifting assembly including an equipment bracket, a positioning groove, a drive shaft, a drive sprocket, a drive chain, a servo motor, a lifting frame, a positioning block, a connecting plate, and a support frame, a storage tank provided on the upper side of the support frame, a second connecting valve fixedly connected to the side of the storage tank near the lower end, and a connecting pipe fixedly connected between the first connecting valve and the second connecting valve.
[0008] By adopting the above technical solution, the storage tank is used to quantitatively introduce ammonia water into the equipment, and the storage bucket is used to transfer ammonia water. During use, the storage bucket is placed on the upper side of the support frame, and the lifting component lifts the storage bucket upward. Then, the connecting pipe is connected to the first connecting valve and the second connecting valve, and then the first connecting valve and the second connecting valve are opened. At this time, the ammonia water inside the storage bucket will enter the interior of the storage tank through the first connecting valve, the connecting pipe and the second connecting valve, thereby realizing the feeding of ammonia water. The feeding process is in a sealed state throughout, effectively preventing ammonia water splashing, preventing odor from escaping, and improving equipment safety and the cleanliness of the working environment.
[0009] Optionally, a feed pipe is fixedly connected to the side of the storage tank near the lower end, and a magnetic pump is fixedly installed on the side of the storage tank. The end of the feed pipe away from the storage tank is fixedly connected to the feed end of the magnetic pump, and a discharge pipe is fixedly connected to the discharge end of the magnetic pump.
[0010] By adopting the above technical solution, a magnetic pump, in conjunction with a feed pipe, draws ammonia water from inside the storage tank, and then injects it into the EDTA solution through a discharge pipe.
[0011] Optionally, the equipment bracket is fixedly connected to the front end of the equipment platform, and positioning grooves are provided on the inner walls of both the left and right sides of the equipment bracket. Positioning blocks are fixedly connected to the rear ends of both the left and right sides of the lifting frame, and the positioning blocks are slidably connected to the positioning grooves.
[0012] By adopting the above technical solution, the positioning block slides up and down inside the positioning groove, limiting the position of the lifting frame and improving the stability of the lifting frame during the lifting process.
[0013] Optionally, two sets of upper and lower transmission shafts are rotatably connected between the inner walls of the left and right sides of the equipment bracket. Two sets of transmission sprockets are fixedly connected to the surfaces of the two sets of transmission shafts. The upper and lower ends of the transmission chain are respectively connected to the upper and lower sets of transmission sprockets on the same side.
[0014] By adopting the above technical solution, the upper and lower sets of transmission sprockets work together to drive the transmission chain to rotate.
[0015] Optionally, two sets of connecting plates are fixedly connected to the rear side of the lifting frame, and the two sets of connecting plates are respectively fixedly connected to the sides of two sets of transmission chains. Two sets of support frames are fixedly connected to the inner side of the rear wall of the lifting frame.
[0016] By adopting the above technical solution, the lifting frame is raised and lowered through the connecting plate during the rotation of the transmission chain.
[0017] Optionally, the servo motor is fixedly mounted on the side of the equipment bracket, and the output end of the equipment bracket is fixedly connected to the right end of the lower transmission shaft via a coupling.
[0018] By adopting the above technical solution, the servo motor drives the lower transmission shaft to rotate through the coupling, which in turn drives the transmission chain to rotate. The servo motor is a bidirectional motor, which can realize forward and reverse rotation, thereby driving the transmission chain to rotate forward or reverse, and raising or lowering the lifting frame.
[0019] Optionally, threaded sleeves are fixedly connected to the front ends of both arms of the lifting frame, and threaded rods are threadedly connected inside the threaded sleeves. Limiting sleeves are fixedly connected to the surfaces of both arms of the lifting frame at the front and rear sides of the threaded sleeves, and limiting rods are slidably connected inside the limiting sleeves.
[0020] By adopting the above technical solution, the threaded rod rotates inside the threaded sleeve, and the limiting rod slides inside the limiting sleeve.
[0021] Optionally, two sets of clamping plates are provided between the left and right arms of the lifting frame. One end of the limiting rod is fixedly connected to the surface of the clamping plate on the same side. Connecting blocks are fixedly connected to the surfaces of the two sets of clamping plates on opposite sides. One end of the threaded rod is rotatably connected to the connecting block.
[0022] By adopting the above technical solution, during the rotation of the threaded rod, one of its inner ends rotates inside the connecting block, thereby pushing the clamping plate inward or pulling it outward.
[0023] The technical effects and advantages provided by this utility model in the above technical solution are as follows:
[0024] 1. This utility model uses a lifting assembly to lift the storage tank upwards, then connects the connecting pipe to the first connecting valve and the second connecting valve, and then opens the first connecting valve and the second connecting valve. At this time, the ammonia water inside the storage tank will enter the interior of the storage tank through the first connecting valve, the connecting pipe and the second connecting valve, realizing the addition of ammonia water in a sealed state, effectively avoiding ammonia water splashing, preventing odor from escaping, and improving equipment safety and the cleanliness of the working environment;
[0025] 2. This utility model uses a support frame to support the storage bucket, while the threaded rods on both sides cooperate with the limiting rods to push the two sets of clamping plates inward, thereby clamping and fixing the storage bucket and improving the stability of the storage bucket during the lifting process. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0027] Figure 2 This is a schematic diagram of the connection structure between the storage tank and the storage bucket of this utility model;
[0028] Figure 3 This utility model Figure 2 Schematic diagram of the structure at point A in the diagram;
[0029] Figure 4 This is a schematic diagram of the lifting component structure of this utility model;
[0030] Figure 5 This is a schematic diagram of the equipment support structure of this utility model;
[0031] Figure 6 This is a schematic diagram of the lifting frame structure of this utility model;
[0032] Figure 7 This utility model Figure 6 The structural diagram at point B in the diagram.
[0033] Explanation of reference numerals in the attached figures:
[0034] 1. Equipment platform; 11. Equipment bracket; 12. Positioning slot; 13. Drive shaft; 14. Drive sprocket; 15. Drive chain; 16. Servo motor; 2. Lifting frame; 21. Positioning block; 22. Connecting plate; 23. Threaded sleeve; 24. Limiting sleeve; 25. Threaded rod; 26. Limiting rod; 27. Clamping plate; 28. Connecting block; 29. Support frame; 3. Storage tank; 31. First connecting valve; 32. Connecting pipe; 33. Guide pipe; 34. Magnetic pump; 35. Discharge pipe; 4. Storage bucket; 41. Second connecting valve. Detailed Implementation
[0035] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0036] This utility model provides, for example Figures 1 to 6The ammonia addition device in an EDTA chemical cleaning dosing equipment shown includes an equipment platform 1. A storage tank 3 is fixedly installed on the upper surface of the equipment platform 1. A feed pipe 33 is fixedly connected to the side of the storage tank 3 near the lower end. A magnetic pump 34 is fixedly installed on the side of the storage tank 3. The end of the feed pipe 33 away from the storage tank 3 is fixedly connected to the feed end of the magnetic pump 34. A discharge pipe 35 is fixedly connected to the discharge end of the magnetic pump 34. A first connecting valve 31 is fixedly connected to the side of the storage tank 3 near the upper end. A lifting assembly is provided on the front side of the equipment platform 1. The lifting assembly includes an equipment bracket 11, a positioning groove 12, a drive shaft 13, a drive sprocket 14, a drive chain 15, a servo motor 16, a lifting frame 2, a positioning block 21, a connecting plate 22, and a support frame 29. A storage tank 4 is provided on the upper side of the support frame 29. A second connecting valve 41 is fixedly connected to the side of the storage tank 4 near the lower end. A connecting pipe 32 is fixedly connected between the first connecting valve 31 and the second connecting valve 41.
[0037] When adding material to the storage tank 3, the storage bucket 4 is first placed on the upper side of the support frame 29. Then, the lifting assembly is started. At this time, the servo motor 16, drive shaft 13, drive sprocket 14 and drive chain 15 work together to drive the lifting frame 2 and support frame 29 to move upward, raising the height of the storage bucket 4. When the storage bucket 4 is raised to the upper side of the storage tank 3, the first connecting valve 31 and the second connecting valve 41 are connected and fixed using the connecting pipe 32. Then, the first connecting valve 31 and the second connecting valve 41 are opened. At this time, under the action of gravity, the ammonia water inside the storage bucket 4 will automatically flow into the interior of the storage tank 3. The ammonia water is in a sealed state throughout the process, effectively preventing ammonia water from splashing to the outside, improving equipment safety, and preventing the spread of odor, thus improving environmental cleanliness.
[0038] Meanwhile, when ammonia is injected into the EDTA solution, the magnetic pump 34 is automatically started by the controller. The magnetic pump 34 draws ammonia from the storage tank 3 through the feed pipe 33, and then introduces the ammonia into the EDTA solution through the discharge pipe 35 to adjust the pH value of the EDTA solution. After the pH value is adjusted to the specified value, the controller automatically shuts off the magnetic pump 34.
[0039] See Figures 4 to 6The equipment bracket 11 is fixedly connected to the front end of the equipment platform 1. Positioning grooves 12 are provided on the inner walls of both the left and right sides of the equipment bracket 11. Positioning blocks 21 are fixedly connected to the rear ends of both the left and right sides of the lifting frame 2. The positioning blocks 21 are slidably connected to the positioning grooves 12. Two sets of upper and lower transmission shafts 13 are rotatably connected between the inner walls of the left and right sides of the equipment bracket 11. Two sets of transmission sprockets 14 are fixedly connected to the surfaces of the two sets of transmission shafts 13. The upper and lower ends of the transmission chain 15 are respectively connected to the upper and lower sets of transmission sprockets 14 on the same side. Two sets of connecting plates 22 are fixedly connected to the rear side of the lifting frame 2. The two sets of connecting plates 22 are respectively fixedly connected to the sides of the two sets of transmission chains 15. Two sets of support frames 29 are fixedly connected to the inner side of the rear wall of the lifting frame 2. The servo motor 16 is fixedly installed on the side of the equipment bracket 11. The output end of the equipment bracket 11 is fixedly connected to the right end of the lower transmission shaft 13 through a coupling.
[0040] Specifically, during the lifting process of the lifting frame 2, the servo motor 16 is started and rotated clockwise. The output end of the servo motor 16 drives the transmission shaft 13 to rotate clockwise through the coupling. At this time, the upper and lower transmission shafts 13 cooperate with the transmission sprockets 14 on the upper and lower sides, driving the two sets of transmission chains 15 to rotate clockwise. Then, through the two sets of connecting plates 22, the lifting frame 2 is lifted. At this time, the positioning block 21 slides upward inside the positioning groove 12 to position the lifting frame 2. Conversely, during the reverse process of the servo motor 16, the lifting frame 2 is lowered.
[0041] See Figure 1 , Figure 6 and Figure 7 The front ends of the left and right arms of the lifting frame 2 are fixedly connected with threaded sleeves 23. The threaded sleeves 23 are internally connected with threaded rods 25. The surfaces of the left and right arms of the lifting frame 2 are fixedly connected with limit sleeves 24 at the front and rear sides of the threaded sleeves 23. The limit sleeves 24 are internally connected with limit rods 26. The left and right arms of the lifting frame 2 are provided with two sets of clamping plates 27. The inner end of the limit rod 26 is fixedly connected to the surface of the clamping plate 27 on the same side. The surfaces of the two sets of clamping plates 27 facing away from each other are fixedly connected with connecting blocks 28. The inner end of the threaded rod 25 is rotatably connected to the connecting block 28.
[0042] In addition, after placing the storage bucket 4 on the support frame 29, the threaded rods 25 on both sides are rotated inward. The threaded rods 25 push the clamping plates 27 on the same side inward. The clamping plates 27 on both sides cooperate to clamp and fix the storage bucket 4 on both sides, thereby improving the stability of the storage bucket 4 during the lifting process.
[0043] The working principle of this utility model is as follows: The storage tank 4 is lifted upward using the lifting assembly. Then, the connecting pipe 32 is connected to the first connecting valve 31 and the second connecting valve 41. The first connecting valve 31 and the second connecting valve 41 are then opened. At this time, the ammonia water inside the storage tank 4 will enter the interior of the storage tank 3 through the first connecting valve 31, the connecting pipe 32 and the second connecting valve 41, realizing the addition of ammonia water in a sealed state, effectively avoiding ammonia water splashing, preventing odor transmission, and improving equipment safety and the cleanliness of the working environment. At the same time, the storage tank 4 is supported by the support frame 29, and the threaded rods 25 on both sides cooperate with the limiting rods 26 to push the two sets of clamping plates 27 inward, thereby clamping and fixing the storage tank 4, improving the stability of the storage tank 4 during the lifting process.
[0044] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. An ammonia addition device in an EDTA chemical cleaning dosing system, comprising a platform (1), characterized in that: A storage tank (3) is fixedly installed on the upper surface of the equipment platform (1). A first connecting valve (31) is fixedly connected to the side of the storage tank (3) near the upper end. A lifting assembly is provided on the front side of the equipment platform (1). The lifting assembly includes an equipment bracket (11), a positioning groove (12), a transmission shaft (13), a transmission sprocket (14), a transmission chain (15), a servo motor (16), a lifting frame (2), a positioning block (21), a connecting plate (22), and a support frame (29). A storage bucket (4) is provided on the upper side of the support frame (29). A second connecting valve (41) is fixedly connected to the side of the storage bucket (4) near the lower end. A connecting pipe (32) is fixedly connected between the first connecting valve (31) and the second connecting valve (41).
2. The ammonia addition device in the EDTA chemical cleaning dosing equipment according to claim 1, characterized in that: A guide pipe (33) is fixedly connected to the side of the storage tank (3) near the lower end. A magnetic pump (34) is fixedly installed on the side of the storage tank (3). The end of the guide pipe (33) away from the storage tank (3) is fixedly connected to the feed end of the magnetic pump (34). A discharge pipe (35) is fixedly connected to the discharge end of the magnetic pump (34).
3. The ammonia addition device in the EDTA chemical cleaning dosing equipment according to claim 1, characterized in that: The equipment bracket (11) is fixedly connected to the front end of the equipment platform (1). The inner walls of the left and right sides of the equipment bracket (11) are provided with positioning grooves (12). The rear ends of the left and right sides of the lifting frame (2) are fixedly connected with positioning blocks (21). The positioning blocks (21) are slidably connected to the positioning grooves (12).
4. The ammonia addition device in the EDTA chemical cleaning dosing equipment according to claim 1, characterized in that: The equipment bracket (11) has two sets of upper and lower transmission shafts (13) rotatably connected between the inner walls of the left and right sides. The surfaces of the two sets of transmission shafts (13) are fixedly connected with two sets of transmission sprockets (14). The upper and lower ends of the transmission chain (15) are respectively connected to the upper and lower sets of transmission sprockets (14) on the same side.
5. The ammonia addition device in the EDTA chemical cleaning dosing equipment according to claim 4, characterized in that: The rear side of the lifting frame (2) is fixedly connected to two sets of connecting plates (22), and the two sets of connecting plates (22) are fixedly connected to the sides of two sets of transmission chains (15) respectively. The inner side of the rear wall of the lifting frame (2) is fixedly connected to two sets of support frames (29).
6. The ammonia addition device in the EDTA chemical cleaning dosing equipment according to claim 1, characterized in that: The servo motor (16) is fixedly installed on the side of the equipment bracket (11), and the output end of the equipment bracket (11) is fixedly connected to the right end of the lower transmission shaft (13) through a coupling.
7. The ammonia addition device in the EDTA chemical cleaning dosing equipment according to claim 1, characterized in that: The front ends of the left and right arms of the lifting frame (2) are fixedly connected with threaded sleeves (23), and the threaded sleeves (23) are threaded with threaded rods (25). The surfaces of the left and right arms of the lifting frame (2) are fixedly connected with limiting sleeves (24) at the front and rear sides of the threaded sleeves (23), and the limiting sleeves (24) are slidably connected with limiting rods (26).
8. The ammonia addition device in the EDTA chemical cleaning dosing equipment according to claim 7, characterized in that: The lifting frame (2) has two sets of clamping plates (27) between its left and right arms. The inner end of the limiting rod (26) is fixedly connected to the surface of the clamping plate (27) on the same side. The two sets of clamping plates (27) are fixedly connected to a connecting block (28) on the opposite side surface. The inner end of the threaded rod (25) is rotatably connected to the connecting block (28).