Dosing device for boiler water treatment

By designing a dosing device that includes a motor-driven stirring rod and an electric push rod to adjust the nozzle, the problem that existing devices cannot adapt to boilers of different heights is solved, achieving efficient dosing and convenient operation.

CN224212425UActive Publication Date: 2026-05-08QINGDAO TIANLAN ENVIRONMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO TIANLAN ENVIRONMENT CO LTD
Filing Date
2025-05-20
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing chemical dosing devices for boiler water treatment cannot adapt to boilers of different heights, requiring operators to connect external hoses for chemical dosing, which increases the workload.

Method used

A dosing device was designed, comprising a base, a dosing tank, a motor, a rotating shaft, a stirring rod, an electric push rod, and a water pump. The motor drives the stirring rod to mix the powder, the electric push rod adjusts the height of the nozzle, and the water pump draws the liquid medicine for dosing, adapting to boilers of different heights.

Benefits of technology

It enables efficient chemical dosing for boilers of different heights, reduces unnecessary workload for staff, and improves adaptability and ease of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of boiler water treatment, and particularly relates to a dosing device for boiler water treatment, which comprises a base, universal wheels are fixedly connected to four corners of the bottom of the base, a dosing barrel is fixedly connected to the top of the base, a motor is arranged at the top of the dosing barrel, and the output end of the motor is fixedly connected with a first rotating shaft; the output end of the electric push rod is fixedly connected with a lifting plate, and a second connecting pipe is arranged at the top of the lifting plate; the rotating assembly is arranged in the dosing barrel and used for driving the first rotating shaft and the second rotating shaft to rotate at the same time, through the arranged structure, clear water and medicine powder in the dosing barrel can be stirred and mixed, the mixing effect is good, meanwhile, dosing operation can be conducted on boilers with different heights, the adaptability is high, and the practicability is high. And unnecessary workload of workers is reduced, so that the workers can use the device conveniently.
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Description

Technical Field

[0001] This utility model belongs to the field of boiler water treatment technology, and in particular relates to a chemical dosing device for boiler water treatment. Background Technology

[0002] Boiler water treatment is the process of purifying water before it enters the boiler. Through technologies such as filtration, softening, deoxygenation, desalination, and chemical dosing, it removes impurities such as suspended solids, colloids, hardness substances, dissolved gases, and salts from the water. This prevents scaling, corrosion, and steam quality contamination on the boiler's inner walls, ensuring safe and efficient boiler operation, extending equipment life, and saving fuel. Core methods include ion exchange softening, reverse osmosis desalination, thermal or chemical deoxygenation, and in-boiler chemical dosing. Treatment plans must be customized based on water quality characteristics and boiler type, and water quality indicators must be monitored regularly to adjust process parameters.

[0003] For example, Chinese patent CN222753179U discloses a dosing device for boiler water treatment, including a base plate. A cartridge is fixedly installed on the top of the base plate, and a cover plate is fixedly installed on the top of the cartridge. Square tubes are fixedly installed on both sides of the top of the cover plate. Strip grooves are opened at both ends of the square tubes. Springs are fixedly installed at equal intervals on the bottom of the inside of the square tubes. Moving plates are movably installed inside the strip grooves. Vertical plates located inside the square tubes are fixedly installed between the moving plates. In daily use, the operator starts the rotary motor. The operation of the rotary motor causes the shaft and cam to rotate. Each rotation of the outer surface of the cam touches the top of the carrying plate. At this time, the carrying plate drives the vertical plate to slide inside the square tube. The vertical plate then drives the moving plate to slide inside the strip groove. At the same time, the vertical plate compresses the springs.

[0004] The aforementioned patent has the following problems: In actual use, it does not have the capability to add chemicals to boilers of different heights. As a result, when it is necessary to add chemicals to taller boilers, staff need to connect an external hose to complete the chemical addition operation. This has poor adaptability and increases the workload of staff unnecessarily. In view of this, we propose a chemical addition device for boiler water treatment. Utility Model Content

[0005] The purpose of this invention is to provide a chemical dosing device for boiler water treatment to solve the problems mentioned in the background art.

[0006] In view of this, the present invention provides a dosing device for boiler water treatment, comprising:

[0007] The base has casters fixedly connected to the four corners of its bottom, and a dosing tank fixedly connected to the top of the base. A motor is installed on the top of the dosing tank, and a first rotating shaft is fixedly connected to the output end of the motor. The first rotating shaft extends into the interior of the dosing tank, and a rotating plate is fixedly connected to the outside of the first rotating shaft. A second rotating shaft is rotatably mounted on the bottom of the rotating plate. A dosing pipe and a water pipe are installed on the outside of the dosing tank.

[0008] An electric push rod is provided, with a lifting plate fixedly connected to its output end. A second connecting pipe is provided on the top of the lifting plate. One end of the second connecting pipe is connected to a nozzle that extends to the bottom of the lifting plate. The other end of the second connecting pipe is connected to a telescopic pipe that extends to the bottom of the lifting plate.

[0009] A rotating assembly is disposed inside the dosing tank and is used to drive the first rotating shaft and the second rotating shaft to rotate simultaneously.

[0010] In this technical solution, by starting the motor, the first rotating shaft, the driving gear, the rotating plate, and the first stirring rod are driven to rotate, which in turn drives the driven gear, the second rotating shaft, and the second stirring rod to rotate. The rotation of the first and second stirring rods mixes the water and powder inside the dosing tank. The rotation of the rotating plate drives the second rotating shaft and the second stirring rod to move in a circular motion, which fully mixes the powder. With the above structure, the water and powder inside the dosing tank can be mixed effectively, resulting in a better mixing effect and making it more convenient for operators to use.

[0011] By activating the electric actuator, the output end of the electric actuator drives the lifting plate, the second connecting pipe, and the nozzle to move. When the second connecting pipe moves, it causes the telescopic pipe to extend. By activating the water pump, the liquid medicine inside the dosing tank can be drawn into the first connecting pipe, the telescopic pipe, and the second connecting pipe, and then sprayed out from the nozzle to complete the dosing operation. With the above structure, dosing operations can be performed on boilers of different heights, which is highly adaptable, reduces the unnecessary workload of the staff, and makes it more convenient for the staff to use.

[0012] In the above technical solution, further, a plurality of circumferentially distributed first stirring rods are fixedly connected to the outside of the first rotating shaft, and a plurality of circumferentially distributed second stirring rods are fixedly connected to the outside of the second rotating shaft, with the first stirring rods and the second stirring rods being arranged alternately.

[0013] In this technical solution, the water and medicine powder inside the dosing tank can be stirred and mixed by rotating the first stirring rod and the second stirring rod.

[0014] In the above technical solution, the rotating assembly further includes a driving gear, which is fixedly sleeved on the outside of the first rotating shaft, and a driven gear is fixedly sleeved on the outside of the second rotating shaft, with the driving gear and the driven gear meshing together.

[0015] In this technical solution, since the driving gear and the driven gear are meshed together, the rotation of the driving gear can drive the driven gear, the second rotating shaft and the second stirring rod to rotate.

[0016] In the above technical solution, a groove is further provided on the top of the inner wall of the dosing tank, and a slider is fixedly connected to the top of the rotating plate, the slider being slidably installed inside the groove.

[0017] In this technical solution, the sliding block is installed inside the slide groove, which makes the rotating plate more stable when rotating.

[0018] In the above technical solution, a telescopic sleeve is further fixedly connected to the top of the base, and a telescopic rod is slidably installed inside the telescopic sleeve. The top of the telescopic rod is fixedly connected to the bottom of the lifting plate.

[0019] In this technical solution, when the lifting plate moves, it causes the telescopic rod to slide inside the telescopic sleeve, thus enabling the lifting plate to move.

[0020] In the above technical solution, a support frame is fixedly connected to the top of the dosing tank, and the motor is fixedly mounted on the support frame.

[0021] In this technical solution, the support frame ensures that the motor will not idle during operation.

[0022] In the above technical solution, a first connecting pipe is connected to one side of the dosing tank, and a water pump is installed outside the first connecting pipe.

[0023] In this technical solution, by starting the water pump, the liquid medicine inside the dosing tank can be drawn into the first connecting pipe, the telescopic pipe and the second connecting pipe, and sprayed out from the nozzle to complete the dosing operation.

[0024] The beneficial effects of this utility model are:

[0025] 1. By starting the motor, the first rotating shaft, the drive gear, the rotating plate, and the first stirring rod are driven to rotate, which in turn drives the driven gear, the second rotating shaft, and the second stirring rod to rotate. The rotation of the first and second stirring rods mixes the water and powder inside the dosing tank. The rotation of the rotating plate drives the second rotating shaft and the second stirring rod to move in a circular motion, which fully mixes the powder. With the above structure, the water and powder inside the dosing tank can be mixed effectively, resulting in better mixing and making it more convenient for operators to use.

[0026] 2. By activating the electric push rod, the output end of the electric push rod drives the lifting plate, the second connecting pipe, and the nozzle to move. When the second connecting pipe moves, it drives the telescopic pipe to extend. By activating the water pump, the liquid medicine inside the dosing tank can be drawn into the first connecting pipe, the telescopic pipe, and the second connecting pipe, and sprayed out from the nozzle to complete the dosing operation. With the above structure, dosing operations can be performed on boilers of different heights, which is highly adaptable, reduces the unnecessary workload of the staff, and makes it more convenient for the staff to use. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0028] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0029] Figure 3 This is a partial sectional view of the overall structure of this utility model.

[0030] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0031] The markings in the diagram are as follows:

[0032] 1. Base; 2. Casters; 3. Dosing tank; 4. Dosing pipe; 5. Water pipe; 6. Support frame; 7. Motor; 8. First rotating shaft; 9. Rotating plate; 10. Drive gear; 11. First stirring rod; 12. Slide groove; 13. Sliding block; 14. Second rotating shaft; 15. Driven gear; 16. Second stirring rod; 17. Electric push rod; 18. Lifting plate; 19. Telescopic sleeve; 20. Telescopic rod; 21. First connecting pipe; 22. Water pump; 23. Telescopic pipe; 24. Second connecting pipe; 25. Nozzle. Detailed Implementation

[0033] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0034] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0035] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0036] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0037] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0038] Example 1:

[0039] Please see Figures 1-4 As shown, this embodiment provides a chemical dosing device for boiler water treatment, including:

[0040] A base 1 has casters 2 fixedly connected to the four corners of its bottom. A dosing tank 3 is fixedly connected to the top of the base 1. A motor 7 is installed on the top of the dosing tank 3. A first rotating shaft 8 is fixedly connected to the output end of the motor 7. The first rotating shaft 8 extends into the interior of the dosing tank 3. A rotating plate 9 is fixedly connected to the outside of the first rotating shaft 8. A second rotating shaft 14 is rotatably installed at the bottom of the rotating plate 9. A dosing pipe 4 and a water pipe 5 are installed on the outside of the dosing tank 3.

[0041] An electric push rod 17 is provided. The output end of the electric push rod 17 is fixedly connected to a lifting plate 18. A second connecting pipe 24 is provided on the top of the lifting plate 18. One end of the second connecting pipe 24 is connected to a nozzle 25, which extends to the bottom of the lifting plate 18. The other end of the second connecting pipe 24 is connected to a telescopic pipe 23, which extends to the bottom of the lifting plate 18.

[0042] A rotating assembly is installed inside the dosing tank 3 and is used to drive the first rotating shaft 8 and the second rotating shaft 14 to rotate simultaneously.

[0043] The system consists of a motor 7 that drives the first rotating shaft 8, the drive gear 10, the rotating plate 9, and the first stirring rod 11 to rotate. This, in turn, drives the driven gear 15, the second rotating shaft 14, and the second stirring rod 16 to rotate. The rotation of the first stirring rod 11 and the second stirring rod 16 mixes the water and powder inside the dosing tank 3. The rotation of the rotating plate 9 drives the second rotating shaft 14 and the second stirring rod 16 to move in a circular motion, which fully mixes the powder. This structure effectively mixes the water and powder inside the dosing tank 3, resulting in a better mixing effect and making it easier for staff to use.

[0044] By activating the electric push rod 17, the output end of the electric push rod 17 drives the lifting plate 18, the second connecting pipe 24, and the nozzle 25 to move. When the second connecting pipe 24 moves, it drives the telescopic pipe 23 to extend. By activating the water pump 22, the liquid medicine inside the dosing tank 3 can be drawn into the first connecting pipe 21, the telescopic pipe 23, and the second connecting pipe 24, and sprayed out from the nozzle 25 to complete the dosing operation. With the above structure, dosing operations can be performed on boilers of different heights. It has strong adaptability, reduces the unnecessary workload of the staff, and makes it more convenient for the staff to use.

[0045] Example 2:

[0046] This embodiment provides a dosing device for boiler water treatment. In addition to the technical solution of the above embodiment, it also has the following technical features: a plurality of circumferentially distributed first stirring rods 11 are fixedly connected to the outside of the first rotating shaft 8, and a plurality of circumferentially distributed second stirring rods 16 are fixedly connected to the outside of the second rotating shaft 14. The first stirring rods 11 and the second stirring rods 16 are arranged alternately.

[0047] The rotation of the first stirring rod 11 and the second stirring rod 16 can mix the water and medicine powder inside the dosing tank 3.

[0048] Example 3:

[0049] This embodiment provides a dosing device for boiler water treatment. In addition to the technical solutions of the above embodiments, it also has the following technical features: the rotating component includes a drive gear 10, which is fixedly sleeved on the outside of the first rotating shaft 8, and a driven gear 15 is fixedly sleeved on the outside of the second rotating shaft 14. The drive gear 10 and the driven gear 15 are meshed and connected.

[0050] Since the driving gear 10 and the driven gear 15 are meshed together, the rotation of the driving gear 10 can drive the driven gear 15, the second rotating shaft 14 and the second stirring rod 16 to rotate.

[0051] Example 4:

[0052] This embodiment provides a dosing device for boiler water treatment. In addition to the technical solution of the above embodiment, it also has the following technical features: a groove 12 is provided on the top of the inner wall of the dosing tank 3, and a slider 13 is fixedly connected to the top of the rotating plate 9. The slider 13 is slidably installed inside the groove 12.

[0053] The slider 13 is slidably installed inside the slide groove 12, which makes the rotating plate 9 more stable when rotating.

[0054] Example 5:

[0055] This embodiment provides a dosing device for boiler water treatment. In addition to the technical solutions of the above embodiments, it also has the following technical features: a telescopic sleeve 19 is fixedly connected to the top of the base 1, a telescopic rod 20 is slidably installed inside the telescopic sleeve 19, and the top of the telescopic rod 20 is fixedly connected to the bottom of the lifting plate 18.

[0056] When the lifting plate 18 moves, it causes the telescopic rod 20 to slide inside the telescopic sleeve 19, thus enabling the lifting plate 18 to move.

[0057] Example 6:

[0058] This embodiment provides a dosing device for boiler water treatment. In addition to the technical solutions of the above embodiments, it also has the following technical features: a support frame 6 is fixedly connected to the top of the dosing tank 3, and a motor 7 is fixedly installed on the support frame 6.

[0059] The support frame 6 ensures that the motor 7 will not idle during operation.

[0060] Example 7:

[0061] This embodiment provides a dosing device for boiler water treatment. In addition to the technical solutions of the above embodiments, it also has the following technical features: a first connecting pipe 21 is connected to one side of the dosing tank 3, and a water pump 22 is provided outside the first connecting pipe 21.

[0062] By activating the water pump 22, the liquid medicine inside the dosing tank 3 can be drawn into the first connecting pipe 21, the telescopic pipe 23 and the second connecting pipe 24, and sprayed out from the nozzle 25 to complete the dosing operation.

[0063] Working principle: The powdered medicine can be added to the dosing tank 3 through the dosing pipe 4, and the water can be added to the dosing tank 3 through the water pipe 5. Starting the motor 7 causes the first rotating shaft 8, the drive gear 10, the rotating plate 9, and the first stirring rod 11 to rotate. Since the drive gear 10 and the driven gear 15 are meshed, the rotation of the drive gear 10 drives the driven gear 15, the second rotating shaft 14, and the second stirring rod 16 to rotate. The rotation of the first stirring rod 11 and the second stirring rod 16 mixes the water and powdered medicine inside the dosing tank 3. The rotation of the rotating plate 9 drives the second rotating shaft 14 and the second stirring rod 16 to rotate, ensuring thorough mixing of the powdered medicine. This structure effectively mixes the water and powdered medicine inside the dosing tank 3, resulting in a better mixing effect and making it convenient for operators to use.

[0064] By activating the electric push rod 17, the output end of the electric push rod 17 drives the lifting plate 18, the second connecting pipe 24, and the nozzle 25 to move. At this time, the height of the nozzle 25 can be adjusted, allowing for chemical dosing operations on boilers of different heights. When the second connecting pipe 24 moves, it drives the telescopic pipe 23 to extend. When the lifting plate 18 moves, it drives the telescopic rod 20 to slide inside the telescopic sleeve 19, making the lifting plate 18 more stable during movement. By activating the water pump 22, the liquid medicine inside the dosing tank 3 can be drawn into the first connecting pipe 21, the telescopic pipe 23, and the second connecting pipe 24, and sprayed out from the nozzle 25 to complete the dosing operation. With the above structure, chemical dosing operations can be performed on boilers of different heights, which is highly adaptable, reduces unnecessary workload for operators, and makes it more convenient for operators to use.

[0065] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A dosing device for boiler water treatment, characterized in that, include: The base (1) has casters (2) fixedly connected to the four corners of the bottom of the base (1), and a dosing tank (3) fixedly connected to the top of the base (1). A motor (7) is installed on the top of the dosing tank (3). A first rotating shaft (8) is fixedly connected to the output end of the motor (7). The first rotating shaft (8) extends into the interior of the dosing tank (3). A rotating plate (9) is fixedly connected to the outside of the first rotating shaft (8). A second rotating shaft (14) is rotatably installed at the bottom of the rotating plate (9). A dosing pipe (4) and a water pipe (5) are installed on the outside of the dosing tank (3). An electric push rod (17) is provided with a lifting plate (18) fixedly connected to its output end. A second connecting pipe (24) is provided on the top of the lifting plate (18). One end of the second connecting pipe (24) is connected to a nozzle (25), which extends to the bottom of the lifting plate (18). The other end of the second connecting pipe (24) is connected to a telescopic pipe (23), which extends to the bottom of the lifting plate (18). A rotating assembly is disposed inside the dosing tank (3) and is used to drive the first rotating shaft (8) and the second rotating shaft (14) to rotate simultaneously.

2. The dosing device for boiler water treatment according to claim 1, characterized in that, The first rotating shaft (8) is fixedly connected to a plurality of circumferentially distributed first stirring rods (11), and the second rotating shaft (14) is fixedly connected to a plurality of circumferentially distributed second stirring rods (16), with the first stirring rods (11) and the second stirring rods (16) arranged alternately.

3. The dosing device for boiler water treatment according to claim 1, characterized in that, The rotating assembly includes a drive gear (10), which is fixedly sleeved on the outside of the first rotating shaft (8), and a driven gear (15) is fixedly sleeved on the outside of the second rotating shaft (14). The drive gear (10) and the driven gear (15) are meshed together.

4. A dosing device for boiler water treatment according to claim 1, characterized in that, The top of the inner wall of the dosing tank (3) is provided with a sliding groove (12), and the top of the rotating plate (9) is fixedly connected with a slider (13), which is slidably installed inside the sliding groove (12).

5. A dosing device for boiler water treatment according to claim 1, characterized in that, The top of the base (1) is fixedly connected to a telescopic sleeve (19), and a telescopic rod (20) is slidably installed inside the telescopic sleeve (19). The top of the telescopic rod (20) is fixedly connected to the bottom of the lifting plate (18).

6. A dosing device for boiler water treatment according to claim 1, characterized in that, The top of the dosing tank (3) is fixedly connected to a support frame (6), and the motor (7) is fixedly installed on the support frame (6).

7. A dosing device for boiler water treatment according to claim 1, characterized in that, The dosing tank (3) is connected to a first connecting pipe (21) on one side, and a water pump (22) is installed outside the first connecting pipe (21).

Citation Information

Patent Citations

  • Dosing device for boiler water treatment

    CN222753179U