A device for assisting the dosing of a boiler feed water oxygen scavenger

CN224882737UActive Publication Date: 2026-10-23QINGDAO SINOWELL IND WATER TREATMENT CO LTD
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Patent Information

Application Number
CN202522177542.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-15
Publication Date
2026-10-23
Estimated Expiration
2035-10-15

AI Technical Summary

Technical Problem

[0003]现有辅助锅炉给水除氧剂加药装置,多采用简易手动阀门控制给药,难以精准调节投加量,易致除氧剂过量或不足,且储药罐缺乏有效搅拌结构,除氧剂溶液长期静置易出现药品沉淀,造成投加浓度不均,无法实现精准给药,增加锅炉氧腐蚀风险,难以适配锅炉稳定运行需求,为此,我们提出一种辅助锅炉给水除氧剂加药装置

Benefits of technology

本实用新型通过搅拌件、活塞板和转动电机等设置,通过转动电机的输出端正反转动,带动第二主动轮进行转动,通过搅拌件对除氧剂进行搅拌,搅拌结束后,将储药罐内指定量的除氧剂通过下料管投放至加药管内,再通过转动电机的输出端进行转动带动第二主动轮转动,第二主动轮通过同步带的传动带动第二锥齿轮进行转动,第二锥齿轮转动通过第一锥齿轮的传动带动螺纹杆进行转动,从而观看加药管上的刻度,活塞板推动除氧剂移动挤压柔性胶体阀进行开启,将指定量的除氧剂投放至锅炉本体内进行使用,有效避免了除氧剂投加浓度不均,投加量不准的现象,精准给药有利于适配锅炉稳定运行需求。

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Abstract

The utility model relates to a dosing device technical field, concretely is a kind of auxiliary boiler feed water oxygen scavenger dosing device, the utility model includes the boiler body, the top of boiler body is fixedly connected with dosing pipe.The utility model is through the output end of rotating motor positive and negative rotation, drives second driving wheel to rotate, through the stirring of oxygen scavenger by stirring part, after stirring, specified amount of oxygen scavenger in storage tank is put into dosing pipe by discharging pipe, then the output end of rotating motor is rotated to drive second driving wheel rotation, second driving wheel is driven second bevel gear to rotate by the transmission of synchronous belt, second bevel gear rotation is driven screw rod to rotate by the transmission of first bevel gear, to watch the scale on dosing pipe, piston plate promotes oxygen scavenger to move extrusion flexible colloid valve to open, and specified amount of oxygen scavenger is put into boiler body to use.
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Description

Technical Field

[0001] This utility model relates to the field of chemical dosing devices, specifically an auxiliary boiler feedwater deoxygenator dosing device. Background Technology

[0002] The auxiliary boiler feedwater deoxygenator dosing device is a special dosing equipment for boiler feedwater systems. Its core function is to accurately add deoxygenator to remove dissolved oxygen from the feedwater, prevent scale and leakage caused by oxygen corrosion on the boiler heating surfaces, and ensure the safe and stable operation of the boiler.

[0003] Existing auxiliary boiler feedwater deoxygenator dosing devices mostly use simple manual valves for dosing, which makes it difficult to accurately adjust the dosage, easily leading to excessive or insufficient deoxygenator. In addition, the storage tank lacks an effective stirring structure, and long-term static storage of the deoxygenator solution can easily cause drug precipitation, resulting in uneven dosing concentration, making it impossible to achieve accurate dosing, increasing the risk of boiler oxygen corrosion, and failing to meet the requirements of stable boiler operation. Therefore, we propose an auxiliary boiler feedwater deoxygenator dosing device. Summary of the Invention

[0004] The purpose of this invention is to provide an auxiliary boiler feedwater deaerator dosing device to solve the problems mentioned in the background art.

[0005] The objective of this utility model can be achieved through the following technical solutions: An auxiliary boiler feedwater deaerator dosing device includes a boiler body, a dosing pipe fixedly connected to the top of the boiler body, the inner cavity of the dosing pipe having a polygonal design, a flexible colloidal valve fixedly installed at the bottom end of the dosing pipe, and a piston plate slidably connected to the inner cavity of the dosing pipe, the piston plate being used to seal the inner cavity of the dosing pipe.

[0006] Above the dosing tube is a storage tank for supplying medicine to the dosing tube, and a stirring element is rotatably connected to the inner cavity of the storage tank.

[0007] The top of the stirring component is fixedly connected to a second drive wheel through the top of the medicine storage tank. A round rod is rotatably connected to the side wall of the medicine storage tank. The top of the round rod is fixedly connected to a first drive wheel. A synchronous belt is fitted onto the surfaces of the second drive wheel and the first drive wheel.

[0008] The bottom end of the round rod is fixedly connected to a second bevel gear, the surface of the second bevel gear is meshed with a first bevel gear, and the surface of the first bevel gear is fixedly connected to a threaded rod. The rotation of the threaded rod is used to drive the piston plate to slide.

[0009] Preferably, a sliding plate is threaded onto the surface of the threaded rod, a connecting rod is fixedly connected to the end of the sliding plate away from the threaded rod, the end of the connecting rod away from the sliding plate is fixedly connected to the surface of the piston plate, and a support plate is rotatably connected to the surface of the threaded rod, the bottom end of the support plate being fixedly connected to the top of the boiler body.

[0010] Preferably, a support frame is fixedly connected to the top of the medicine storage tank, a rotating motor is fixedly installed on the surface of the support frame, the output end of the rotating motor is fixedly connected to the top end of the second drive wheel, a limit block is fixedly connected to the side wall of the medicine storage tank, and the surface of the round rod is rotatably sleeved on the limit block.

[0011] Preferably, a discharge pipe is fixedly connected to the bottom of the medicine storage tank, a control valve is fixedly installed on the surface of the discharge pipe, the surface of the control valve is fixedly connected to the bottom of the medicine storage tank, and the bottom end of the discharge pipe is fixedly connected to the top of the dosing pipe.

[0012] Preferably, the bottom of the medicine storage tank is fixedly connected to two support rods, and the bottom ends of the two support rods are fixedly connected to the top of the boiler body.

[0013] Preferably, both the dosing tube and the storage tank are made of transparent material, and both the dosing tube and the storage tank have graduations on their surfaces.

[0014] The beneficial effects of this utility model are: This invention utilizes a stirring component, piston plate, and rotating motor. The rotating motor's output rotates in both directions, driving a second drive wheel. The stirring component agitates the deoxidizer. After agitation, a specified amount of deoxidizer from the storage tank is added to the dosing pipe via a discharge pipe. The rotating motor's output then drives the second drive wheel, which in turn drives a second bevel gear via a synchronous belt. This second bevel gear, in turn, drives a threaded rod via a first bevel gear, allowing the readings on the dosing pipe to be observed. The piston plate pushes the deoxidizer to open a flexible colloidal valve, dispensing the specified amount of deoxidizer into the boiler body. This effectively avoids uneven concentrations and inaccurate dosages of the deoxidizer, ensuring precise dosing to meet the stable operation requirements of the boiler. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a three-dimensional partial structural schematic diagram of the present invention; Figure 3 This is a utility model Figure 2 A structural diagram from another perspective; Figure 4 This is a utility model Figure 2 A partial structural diagram.

[0016] The following are the reference numerals in the attached diagram: 1. Boiler body; 2. Flexible colloidal valve; 3. Dosing pipe; 4. Connecting rod; 5. Piston plate; 6. Sliding plate; 7. Threaded rod; 8. Support plate; 9. First bevel gear; 10. Second bevel gear; 11. Round rod; 12. Limiting block; 13. First drive wheel; 14. Second drive wheel; 15. Synchronous belt; 16. Support frame; 17. Rotating motor; 18. Storage tank; 19. Discharge pipe; 20. Control valve; 21. Support rod. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] like Figures 1-4As shown, an auxiliary boiler feedwater deaerator dosing device includes a boiler body 1. A dosing pipe 3 is fixedly connected to the top of the boiler body 1. The inner cavity of the dosing pipe 3 is polygonal. A flexible colloidal valve 2 is fixedly installed at the bottom end of the dosing pipe 3. A piston plate 5 is slidably connected to the inner cavity of the dosing pipe 3, and the piston plate 5 is used to seal the inner cavity of the dosing pipe 3. A storage tank 18 for supplying chemicals to the dosing pipe 3 is provided above the dosing pipe 3. A stirring element is rotatably connected to the inner cavity of the storage tank 18. The top end of the stirring element passes through the top of the storage tank 18 and is fixedly connected to a second drive wheel 14. A round rod 11 is rotatably connected to the side wall of the storage tank 18. A first drive wheel 13 is fixedly connected to the top end of the round rod 11. A synchronous belt 15 is sleeved on the surfaces of the second drive wheel 14 and the first drive wheel 13. A second bevel gear 10 is fixedly connected to the bottom end of the round rod 11. A first drive wheel 13 is meshed on the surface of the second bevel gear 10. A bevel gear 9 has a threaded rod 7 fixedly connected to its surface. The threaded rod 7 rotates to drive the piston plate 5 to slide. A sliding plate 6 is threadedly sleeved on the surface of the threaded rod 7. A connecting rod 4 is fixedly connected to the end of the sliding plate 6 away from the threaded rod 7. The end of the connecting rod 4 away from the sliding plate 6 is fixedly connected to the surface of the piston plate 5. A support plate 8 is also rotatably connected to the surface of the threaded rod 7. The bottom end of the support plate 8 is fixedly connected to the top of the boiler body 1. A support frame 16 is fixedly connected to the top of the medicine storage tank 18. A rotating motor 17 is fixedly installed on the surface of the support frame 16. The output end of the rotating motor 17 is fixedly connected to the top end of the second drive wheel 14. A limit block 12 is fixedly connected to the side wall of the medicine storage tank 18. The surface of the round rod 11 is rotatably sleeved on the limit block 12. The dosing pipe 3 and the medicine storage tank 18 are both made of transparent material, and the surfaces of the dosing pipe 3 and the medicine storage tank 18 are both marked with scales.

[0019] In practice, the rotating motor 17 is started, and the output end of the rotating motor 17 rotates in both directions, which drives the second drive wheel 14 to rotate, thereby driving the agitator in the inner cavity of the storage tank 18 to stir the deoxygenator, which can effectively prevent the deoxygenator from settling. After stirring, the rotating motor 17 is turned off, and the specified amount of deoxygenator in the storage tank 18 is put into the dosing pipe 3. Then the rotating motor 17 is started again, and the output end of the rotating motor 17 rotates, driving the second drive wheel 14 to rotate. The second drive wheel 14 drives the second bevel gear 10 to rotate through the transmission of the synchronous belt 15. The rotation of the second bevel gear 10 drives the threaded rod 7 to rotate through the transmission of the first bevel gear 9, thereby observing the scale on the dosing pipe 3. The piston plate 5 pushes the deoxygenator to move and squeeze the flexible colloidal valve 2 to open, so that the specified amount of deoxygenator can be put into the boiler body 1 for use.

[0020] As a technical optimization of this utility model, a feeding pipe 19 is fixedly connected to the bottom of the medicine storage tank 18, and a control valve 20 is fixedly installed on the surface of the feeding pipe 19. The surface of the control valve 20 is fixedly connected to the bottom of the medicine storage tank 18. The bottom end of the feeding pipe 19 is fixedly connected to the top of the dosing pipe 3. Two support rods 21 are fixedly connected to the bottom end of the medicine storage tank 18, and the bottom ends of the two support rods 21 are fixedly connected to the top of the boiler body 1.

[0021] In practice, by opening the control valve 20, the deoxygenating agent in the storage tank 18 can be fed into the dosing pipe 3 through the feed pipe 19 for use. The storage tank 18 can be supported by the two support rods 21 on the boiler body 1.

[0022] In use, the deoxidizer is added to the storage tank 18, and the rotating motor 17 is started. The output end of the rotating motor 17 rotates in both directions, driving the second drive wheel 14 to rotate, thereby driving the stirring component inside the storage tank 18 to stir the deoxidizer. After stirring, the control valve 20 is opened, and the specified amount of deoxidizer in the storage tank 18 can be added to the dosing pipe 3 through the feed pipe 19 for use. The rotating motor 17 is started again, and the output end of the rotating motor 17 drives the second drive wheel 14 to rotate. The second drive wheel 14 drives the second bevel gear 10 to rotate through the synchronous belt 15. The rotation of the second bevel gear 10 drives the threaded rod 7 to rotate through the transmission of the first bevel gear 9, thereby observing the scale on the dosing pipe 3. The piston plate 5 pushes the deoxidizer to move and squeezes the flexible colloidal valve 2 to open, adding the specified amount of deoxidizer into the boiler body 1 for use.

[0023] 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 illustrative of the principles of this 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 auxiliary boiler feedwater deaerator dosing device, comprising a boiler body (1), characterized in that, A dosing pipe (3) is fixedly connected to the top of the boiler body (1). The inner cavity of the dosing pipe (3) is polygonal. A flexible colloidal valve (2) is fixedly installed at the bottom of the dosing pipe (3). A piston plate (5) is slidably connected to the inner cavity of the dosing pipe (3), and the piston plate (5) is used to seal the inner cavity of the dosing pipe (3). Above the dosing tube (3) is a storage tank (18) for supplying medicine to the dosing tube (3), and the inner cavity of the storage tank (18) is rotatably connected to a stirring element; The top of the stirring component is fixedly connected to the top of the medicine storage tank (18) with a second drive wheel (14). A round rod (11) is rotatably connected to the side wall of the medicine storage tank (18). The top of the round rod (11) is fixedly connected to a first drive wheel (13). The surfaces of the second drive wheel (14) and the first drive wheel (13) are fitted with a synchronous belt (15). The bottom end of the round rod (11) is fixedly connected to a second bevel gear (10), the surface of the second bevel gear (10) is meshed with a first bevel gear (9), the surface of the first bevel gear (9) is fixedly connected to a threaded rod (7), and the threaded rod (7) rotates to drive the piston plate (5) to slide.

2. The auxiliary boiler feedwater deaerator dosing device according to claim 1, characterized in that, The threaded rod (7) is threaded with a sliding plate (6). A connecting rod (4) is fixedly connected to one end of the sliding plate (6) away from the threaded rod (7). The end of the connecting rod (4) away from the sliding plate (6) is fixedly connected to the surface of the piston plate (5). A support plate (8) is also rotatably connected to the surface of the threaded rod (7). The bottom end of the support plate (8) is fixedly connected to the top of the boiler body (1).

3. The auxiliary boiler feedwater deaerator dosing device according to claim 2, characterized in that, The top of the medicine storage tank (18) is fixedly connected to a support frame (16), and a rotating motor (17) is fixedly installed on the surface of the support frame (16). The output end of the rotating motor (17) is fixedly connected to the top of the second drive wheel (14). A limit block (12) is fixedly connected to the side wall of the medicine storage tank (18), and the surface of the round rod (11) is rotatably sleeved on the limit block (12).

4. The auxiliary boiler feedwater deaerator dosing device according to claim 1, characterized in that, The bottom of the medicine storage tank (18) is fixedly connected to a discharge pipe (19), and a control valve (20) is fixedly installed on the surface of the discharge pipe (19). The surface of the control valve (20) is fixedly connected to the bottom of the medicine storage tank (18), and the bottom end of the discharge pipe (19) is fixedly connected to the top of the dosing pipe (3).

5. The auxiliary boiler feedwater deaerator dosing device according to claim 4, characterized in that, The bottom of the medicine storage tank (18) is fixedly connected to two support rods (21), and the bottom ends of the two support rods (21) are fixedly connected to the top of the boiler body (1).

6. The auxiliary boiler feedwater deaerator dosing device according to claim 1, characterized in that, Both the dosing tube (3) and the storage tank (18) are made of transparent material, and the surfaces of both the dosing tube (3) and the storage tank (18) are marked with scales.