Ammonia tank spraying protection device

By integrating a hollow shaft motor-driven rotating shaft and stirring rod inside the ammonia tank, the problem of inconvenient disassembly and installation of existing devices is solved, enabling efficient operation of solution mixing and tank wall cleaning, and improving the efficiency and safety of the ammonia tank.

CN224117993UActive Publication Date: 2026-04-14HENAN JINDADI CHEM IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN JINDADI CHEM IND CO LTD
Filing Date
2025-06-04
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing ammonia tank spraying devices are inconvenient to disassemble and install, have limited functionality, cannot efficiently perform spraying cleaning and stirring, and suffer from problems such as stratification, sedimentation, and low-temperature freezing.

Method used

Design a spray protection device integrated inside an ammonia tank. It uses a hollow shaft motor-driven rotating shaft and stirring rod, combined with spray pipes and cleaning plates, to achieve solution mixing and tank wall cleaning, avoid stratification and sedimentation, and ensure solution uniformity and tank wall cleanliness.

Benefits of technology

It enables efficient solution mixing without disassembly, avoids stratification and sedimentation, simplifies operation, improves cleaning efficiency, extends equipment life, reduces labor intensity, and ensures safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of ammonia tank cleaning, and discloses an ammonia tank spraying protection device which comprises a tank body, a rotating shaft driven by a hollow shaft motor is arranged in the tank body, the rotating shaft is of a hollow structure, the top of the rotating shaft is rotationally connected with a spraying pipeline, and the spraying pipeline is communicated with a water source; a stirring rod is arranged on the rotating shaft in the tank body, and the interior of the stirring rod is hollow and is communicated with the rotating shaft; a spraying head is arranged at one end, far away from the rotating shaft, of the stirring rod; the ammonia tank cleaning device can be integrated in an ammonia tank, the inner wall of the ammonia tank can be cleaned, and a solution in the ammonia tank can be mixed and stirred according to requirements to prevent the phenomena of layering, deposition, low-temperature freezing and the like.
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Description

Technical Field

[0001] This utility model relates to the field of ammonia tank cleaning technology, and in particular to an ammonia tank spray protection device. Background Technology

[0002] Ammonia tank spraying is an important equipment maintenance method with significant necessity. Firstly, it effectively protects ammonia tank equipment and extends its service life. Secondly, it improves production efficiency by reducing equipment failures. Finally, it plays a crucial role in ensuring safety. Protecting Equipment: Ammonia tank spraying plays a vital protective role. Regular spray cleaning of ammonia tanks removes dirt, rust, carbon deposits, and other impurities, restoring the equipment to its original smooth surface. This not only reduces equipment wear and extends equipment life but also improves the equipment's sealing performance, preventing leaks. Improving Production Efficiency: Ammonia tank spraying effectively prevents equipment failures, avoiding losses caused by equipment downtime during production. When the equipment is running normally, production efficiency is significantly improved. Simultaneously, spray cleaning prevents equipment blockages caused by impurities, allowing for smoother equipment operation. Safety Assurance: Ammonia tank spraying also reduces potential safety risks. Regular cleaning ensures that the ammonia tank is free of impurities and water accumulation, preventing ammonia leaks and thus reducing the risk of fire and personnel poisoning. In addition, spray cleaning makes it easier for staff to access equipment for regular inspections and maintenance, further ensuring production safety.

[0003] Most existing ammonia tank spraying devices operate externally. This means that when spraying is needed inside the ammonia tank, the spraying device must be inserted into the tank for cleaning, and then removed after the cleaning is completed. Due to the size and height of the ammonia tank, the placement and installation of the spraying device are inconvenient, cumbersome, inefficient, and have limited functionality.

[0004] Therefore, there is an urgent need for an ammonia tank spray protection device that can be integrated into the ammonia tank without disassembly, and can both spray and clean the ammonia tank and mix and stir the products inside the tank. Utility Model Content

[0005] The purpose of this invention is to provide an ammonia tank spray protection device that can be integrated into the ammonia tank. It can clean the inner wall of the tank and mix and stir the solution in the ammonia tank as needed to prevent stratification, sedimentation and low-temperature freezing.

[0006] The present invention adopts the following technical solution:

[0007] A spray protection device for an ammonia tank includes a tank body. A hollow shaft driven by a motor is installed inside the tank body. The shaft has a hollow structure, and a spray pipe is rotatably connected to its top. The spray pipe is connected to a water source. A stirring rod is installed on the shaft inside the tank body. The stirring rod is hollow inside and communicates with the shaft. A spray head is installed at the end of the stirring rod away from the shaft.

[0008] Preferably, the stirring rods at the same height are symmetrically arranged, one of the stirring rods is provided with a spray head at its end, and the other stirring rod is provided with a cleaning plate, which contacts the inner wall of the tank.

[0009] Preferably, the cleaning plate is elastically disposed inside the corresponding stirring rod, and a suction plate is connected to its end. A magnet body is disposed inside the stirring rod near the suction plate. The magnet body is connected to the wires on the conductive slip ring. The conductive slip ring is coaxially disposed on the rotating shaft, and the wires on it are connected to the power supply. In the initial state, the magnet body is energized and tightly attracted to the suction plate. The cleaning plate is released from contact with the inner wall of the tank and is tightly attached to the end of the stirring rod.

[0010] Preferably, a transmission pipe is provided on the inner side wall of the rotating shaft, and the wire passes through the transmission pipe; the end of the stirring rod with the cleaning plate near the rotating shaft is sealed, and a through hole is opened on it for the wire to pass through only.

[0011] Preferably, the plurality of stirring rods on the rotating shaft are arranged at intervals from top to bottom with the rotating shaft as the axis.

[0012] Preferably, the vertical projections of two adjacent cleaning plates overlap.

[0013] Preferably, the spray head is a hollow spherical structure with multiple spray holes at its end.

[0014] Preferably, the spray head is threadedly connected to the stirring rod.

[0015] Preferably, the spray pipe is connected to a booster pump.

[0016] Preferably, a flow regulating valve is provided on the spray pipe at the inlet end of the booster pump.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, by setting a hollow shaft motor-driven rotating shaft in the tank body and setting a stirring rod on the rotating shaft, can use the stirring rod to mix the solution in the ammonia tank, avoiding the phenomenon of ammonia water (especially at high concentrations or low temperatures) stratification due to density gradients or solubility changes, maintaining the uniformity of the ammonia water solution, and at the same time avoiding the deposition and pipe blockage caused by suspended impurities in liquid ammonia. In addition, it can also avoid local supercooling or temperature stratification in low temperature or high pressure storage tanks by stirring, ensuring evaporation balance.

[0018] The hollow design of the stirring rod and rotating shaft, which connects the rotating shaft to the spray pipe, allows the spray liquid to enter the rotating shaft after cleaning. The liquid is then transmitted to the spray head via the stirring rod on the rotating shaft and sprayed onto the inner wall of the tank for cleaning. The operation is simple and quick, and there is no need to disassemble the spray device, making it highly practical. Attached Figure Description

[0019] Figure 1 This is a front view of an embodiment of this application;

[0020] Figure 2 This is a partial cross-sectional view of an embodiment of this application;

[0021] Figure 3 This is a partial cross-sectional view of the stirring rod and rotating shaft in an embodiment of this application. Detailed Implementation

[0022] The present invention will now be described clearly and completely with reference to the accompanying drawings and embodiments:

[0023] like Figures 1 to 3As shown, the ammonia tank spray protection device of this utility model includes a tank body 1, a liquid inlet 2 on one side of the tank body 1, and a discharge outlet 3 at the bottom. A hollow shaft motor 4 drives a rotating shaft 5 inside the tank body 1. The rotating shaft 5 is hollow and extends from the center of the hollow shaft motor 4. A spray pipe 6, connected to a water source, is rotatably connected to the top of the rotating shaft 5. A booster pump 7 is connected to the spray pipe 6, and a flow regulating valve 8 is installed on the spray pipe 6 at the inlet end of the booster pump 7. A stirring rod 9 is installed on the rotating shaft 5 inside the tank body 1. The stirring rod 9 is hollow and connected to the rotating shaft 5. A spray head 10 is installed at the end of the stirring rod 9 away from the rotating shaft 5. The spray head 10 is a hollow spherical structure with multiple spray holes at its end. Preferably, a threaded sleeve protrudes from the end of the spray head 10, and the threaded sleeve is threadedly connected to the stirring rod 9. The spray head 10 is easy to disassemble and replace. The stirring rod 9 and rotating shaft 5 allow for mixing of the ammonia solution within the tank, preventing stratification of the ammonia solution (especially at high concentrations or low temperatures) due to density gradients or solubility changes, thus maintaining the uniformity of the ammonia solution. This also prevents sedimentation and pipe blockage caused by suspended impurities in the liquid ammonia. Furthermore, in low-temperature or high-pressure storage tanks, stirring prevents localized overcooling or temperature stratification, ensuring evaporation balance. When cleaning the tank's inner wall is required, opening the valve allows the spray pipe 6 to deliver spray liquid into the rotating shaft 5. The spray liquid, after passing through the stirring rod 9, is sprayed from the spray head 10, effectively cleaning the inner wall of the tank. The operation is simple and quick, requiring no frequent disassembly and installation, reducing labor intensity and enhancing its practical functions, making it highly practical.

[0024] Furthermore, the stirring rods 9 at the same height are symmetrically arranged. One stirring rod 9 is equipped with a spray head 10 at its end, and the other stirring rod 9 is equipped with a cleaning plate 11. The cleaning plate 11 contacts the inner wall of the tank 1. During operation, as the rotating shaft 5 rotates, the cleaning plate 11 can scrape off the dirt attached to the inner wall of the tank 1, further improving the cleaning effect on the inner wall of the tank 1. Preferably, a guide rod 12 is provided at the end of the cleaning plate 11 near the stirring rod 9. A guide hole is opened on the stirring rod 9 for the guide rod 12 to pass through. The guide rod 12 is connected to a suction plate 13. A spring 14 is provided between the suction plate 13 and the end of the stirring rod 9. A magnet body 15 is provided at the end of the stirring rod 9 near the suction plate 13. The magnet body 15 is connected to the wire on the conductive slip ring 16. The conductive slip ring 16 is coaxially mounted on the rotating shaft 5, and the wire on its upper part is connected to the power supply. In the initial state, the magnet body 15 is energized and tightly attracted to the suction plate 13. The cleaning plate 11 detaches from the inner wall of the tank 1 and adheres tightly to the end of the stirring rod 9. At this time, the spring 14 is in a stretched state. This arrangement can avoid contact between the cleaning plate 11 and the inner wall of the tank 1 during stirring, reducing friction. When it is necessary to clean the inner wall of the tank 1, the power supply to the magnet body 15 is disconnected. Under the restoring force of the spring 14, the cleaning plate 11 is pushed away from the stirring rod 9. At this time, the cleaning plate 11 will adhere to the inner wall of the tank 1. As the rotating shaft 5 rotates, it will drive the cleaning plate 11 to clean the inner wall of the tank 1. The spray head 10 will spray the spray liquid onto the inner wall of the tank 1 to complete the cleaning of the inner wall of the tank 1.

[0025] In addition, a cable delivery pipe 17 is provided on the inner wall of the rotating shaft 5. The top of the cable delivery pipe 17 extends to below the conductive slip ring, and the opening faces the side wall of the rotating shaft to allow the wire to pass through it. The wire passing through the cable delivery pipe 17 avoids contact with the spray liquid. The end of the stirring rod 9 with the cleaning plate 11 near the rotating shaft 5 is sealed, and a through hole is opened on it for the wire to pass through only. In addition, multiple stirring rods 9 on the rotating shaft 5 are arranged at intervals from top to bottom with the rotating shaft 5 as the axis, so that adjacent stirring rods 9 are staggered. The vertical projection of two adjacent cleaning plates 11 overlaps to ensure that there are no blind spots when cleaning the inner wall of the tank 1, thus improving the cleaning effect. In addition, since the bottom of the tank 1 is a conical structure, the stirring rods 9 can be arranged at an angle relative to the rotating shaft 5 according to their structural characteristics, so as to complete the all-round cleaning operation inside the tank 1.

Claims

1. A spray protection device for an ammonia tank, comprising a tank body, characterized in that: The tank is equipped with a hollow shaft driven by a motor. The shaft has a hollow structure and a spray pipe is rotatably connected to its top. The spray pipe is connected to a water source. A stirring rod is installed on the shaft inside the tank. The stirring rod is hollow inside and is connected to the shaft. A spray head is installed at the end of the stirring rod away from the shaft.

2. The ammonia tank spray protection device according to claim 1, characterized in that: The stirring rods at the same height are symmetrically arranged, one of the stirring rods is provided with a spray head at its end, and the other stirring rod is provided with a cleaning plate, which contacts the inner wall of the tank.

3. The ammonia tank spray protection device according to claim 2, characterized in that: The cleaning plate is elastically disposed inside the corresponding stirring rod, and a suction plate is connected to its end. A magnet body is disposed inside the stirring rod near the suction plate. The magnet body is connected to the wires on the conductive slip ring. The conductive slip ring is coaxially disposed on the rotating shaft, and the wires on it are connected to the power supply. In the initial state, the magnet body is energized and tightly attracted to the suction plate. The cleaning plate is released from contact with the inner wall of the tank and is tightly attached to the end of the stirring rod.

4. The ammonia tank spray protection device according to claim 3, characterized in that: The inner wall of the rotating shaft is provided with a transmission pipe, and the wire passes through the transmission pipe; the end of the stirring rod with the cleaning plate near the rotating shaft is sealed, and a through hole is opened on it for the wire to pass through.

5. The ammonia tank spray protection device according to claim 4, characterized in that: The multiple stirring rods on the rotating shaft are arranged at intervals from top to bottom with the rotating shaft as the axis.

6. The ammonia tank spray protection device according to claim 5, characterized in that: The vertical projections of two adjacent cleaning plates overlap.

7. The ammonia tank spray protection device according to claim 1, characterized in that: The spray head is a hollow spherical structure with multiple spray holes at its end.

8. The ammonia tank spray protection device according to claim 7, characterized in that: The spray head is threadedly connected to the stirring rod.

9. The ammonia tank spray protection device according to claim 1, characterized in that: The spray pipe is connected to a booster pump.

10. The ammonia tank spray protection device according to claim 9, characterized in that: A flow regulating valve is installed on the spray pipe at the inlet end of the booster pump.