Efficient and energy-saving dosing device for circulating water system

Abstract

The utility model relates to circulating water system dosing technical field, and disclose a kind of circulating water system high -efficient energy -conserving dosing device, comprising: working support platform, the top surface of the working support platform is fixedly connected with circulating water reservoir, the bottom surface of the working support platform is fixedly connected with medicament support platform, the side of the circulating water reservoir is provided with circulating water assembly, and the circulating water assembly is composed of circulating water reservoir, reflux conduit, circulating water cooling tower, cooling tower drainage pipe, heat exchanger, heat exchanger drainage pipe, circulating water pump and drainage pipe, and the circulating water assembly is used for water to be recycled;Dosing control component is arranged on the top surface of medicament support platform, and the dosing control component is used to control dosing for medicament, and the circulating water system high -efficient energy -conserving dosing device, with dosing water injector and conical spray head negative pressure dosing energy saving cost reduction, rotatable medicament storage box is easy to switch medicament, sealing spring and medicine release slide bar control amount leak protection, stable environmental protection.

Description

Technical Field

[0001] This utility model relates to the field of chemical dosing technology for circulating water systems, specifically a highly efficient and energy-saving chemical dosing device for circulating water systems. Background Technology

[0002] In the industrial production field, circulating water systems are key supporting facilities to ensure equipment cooling and process stability. Regularly adding bactericides, scale inhibitors, corrosion inhibitors, and concentrated sulfuric acid are the core links to prevent scaling and corrosion of system pipes, inhibit the growth of microorganisms, and extend the service life of equipment. Currently, in the industry, the dosing operation of circulating water systems generally relies on complete skid-mounted chemical dosing devices to complete the basic dosing task.

[0003] However, traditional skid-mounted systems have significant drawbacks: their core operating components, such as the metering pump and the mixing mechanism, continuously consume power, resulting in high energy costs over long-term operation, which contradicts the increasingly stringent energy conservation and emission reduction requirements in the industrial sector. Furthermore, these systems have high initial purchase costs, and the metering pumps are prone to failure due to chemical corrosion and component wear. The mixers also require regular maintenance and parts replacement, leading to a substantial increase in maintenance costs throughout the equipment's lifecycle and imposing a heavy economic burden on enterprises. With the increasing demand for green and low-cost industrial operations, traditional high-energy-consuming and high-cost dosing systems are no longer suitable for the operational needs of modern circulating water systems. Therefore, we propose a highly efficient and energy-saving dosing system for circulating water systems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a highly efficient and energy-saving dosing device for circulating water systems, solving the aforementioned problems.

[0005] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0006] A highly efficient and energy-saving dosing device for a circulating water system, comprising:

[0007] A working support platform is provided, with a circulating water storage tank fixedly connected to its top surface and a chemical support platform fixedly connected to its bottom surface. A circulating water assembly is provided on the side of the circulating water storage tank. The circulating water assembly consists of a circulating water storage tank, a return pipe, a circulating water cooling tower, a cooling tower diversion pipe, a heat exchanger, a heat exchanger diversion pipe, a circulating water pump, and a diversion pipe. The circulating water assembly is used for water recycling.

[0008] A dosing control component is installed on the top surface of the drug support platform, which is used to control the dosing of the drug.

[0009] Preferably, the circulating water assembly includes a circulating water storage tank, a return pipe, a circulating water cooling tower, a cooling tower drain pipe, a heat exchanger, a heat exchanger drain pipe, a circulating water pump, and a drain pipe. The circulating water storage tank is fixedly connected to the top surface of the working support platform. A drain pipe is fixedly connected to the side of the circulating water storage tank. A circulating water pump is fixedly connected to the other side of the drain pipe. The circulating water pump is fixedly connected to the top surface of the working support platform. A heat exchanger drain pipe is fixedly connected to the other side of the circulating water pump. A heat exchanger is fixedly connected to the other side of the heat exchanger drain pipe. A heat exchanger is fixedly connected to the top surface of the working support platform. A cooling tower drain pipe is fixedly connected to the top surface of the heat exchanger. A circulating water cooling tower is fixedly connected to the top of the cooling tower drain pipe. A return pipe is fixedly connected to the other side of the circulating water cooling tower.

[0010] Preferably, the dosing control assembly comprises a driving dosing assembly, a reagent replacement assembly, and a reagent addition assembly. The driving dosing assembly includes a one-way control valve, a dosing water jet injector, a dosing drainage pipe, and a conical nozzle. A one-way control valve is fixedly connected to the side of the heat exchanger drainage pipe, a dosing water jet injector is fixedly connected to the other side of the one-way control valve, a circulating water storage tank is fixedly connected to the other side of the dosing water jet injector, a conical nozzle is fixedly connected to the inner side of the dosing water jet injector, a dosing drainage pipe is fixedly connected to the top surface of the dosing water jet injector, and a reagent replacement support frame is fixedly connected to the top surface of the dosing drainage pipe.

[0011] Preferably, the medicine replacement assembly includes a medicine replacement support frame and a medicine storage box. The medicine replacement support frame is fixedly connected to the top surface of the medicine support platform, and the medicine storage box is rotatably connected to the inner side of the medicine replacement support frame.

[0012] Preferably, the medicine storage box has a medicine tank on its inner side, a sliding support platform is fixedly connected to the inner side of the medicine tank, and a medicine adding component is provided on the inner side of the sliding support platform.

[0013] Preferably, the drug addition assembly includes a drug dispensing slide rod and a sealing spring. The sealing spring is fixedly connected to the top and bottom surfaces of the sliding support platform, and the drug dispensing slide rod is fixedly connected to the bottom surface of the sealing spring. The drug dispensing slide rod is slidably connected to the inner side of the sliding support platform. A drainage hole is provided on the inner bottom surface of the drug replacement support frame. The drainage holes are distributed in a ring at equal intervals on the inner side of the drug replacement support frame, and the drug dispensing slide rod is slidably connected to the inner side of the drainage hole.

[0014] Compared with the prior art, the advantages of this utility model are:

[0015] A highly efficient and energy-saving dosing device for a circulating water system is provided, which has the following beneficial effects:

[0016] This circulating water system's highly efficient and energy-saving dosing device offers multiple benefits. By coordinating the dosing jet and conical nozzle within the dosing assembly, it utilizes the negative pressure generated by the circulating water system's own flow to add chemicals. This eliminates the need for traditional, energy-intensive metering pumps and stirring mechanisms, significantly reducing power consumption and meeting energy-saving requirements. It also reduces the use of high-cost core components, lowering equipment procurement and subsequent maintenance costs. Furthermore, the chemical replacement assembly features a rotatable chemical storage tank with evenly spaced annular drain holes, allowing for rapid switching between different types of chemicals (such as bactericides and scale inhibitors) to meet the diverse dosing needs of the circulating water system. This design is also convenient and enhances dosing flexibility. The chemical addition assembly, through the linkage of a sealing spring and a dispensing slide, precisely controls the amount of chemicals added, preventing waste. The sealed structure also prevents leakage and contamination, ensuring the stability and environmental friendliness of the dosing process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram showing the overall structure of this utility model disassembled;

[0019] Figure 3 This is a cross-sectional view of the overall structure of this utility model;

[0020] Figure 4 for Figure 3 A magnified view of part A in the diagram.

[0021] In the diagram: 1. Working support platform; 2. Circulating water storage tank; 3. Return pipe; 4. Chemical replacement support frame; 5. Chemical storage tank; 6. Dispensing slide bar; 7. Circulating water cooling tower; 8. Cooling tower drain pipe; 9. Heat exchanger; 10. Heat exchanger drain pipe; 11. One-way control valve; 12. Circulating water pump; 13. Chemical support platform; 14. Drain pipe; 15. Chemical dosing jet injector; 16. Sealing spring; 17. Chemical dosing drain pipe; 18. Conical nozzle; 19. Sliding support platform. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-4 This utility model provides a technical solution:

[0024] A highly efficient and energy-saving dosing device for a circulating water system, comprising:

[0025] The working support platform 1 has a circulating water storage tank 2 fixedly connected to its top surface and a chemical support platform 13 fixedly connected to its bottom surface. A circulating water assembly is provided on the side of the circulating water storage tank 2. The circulating water assembly consists of the circulating water storage tank 2, a return pipe 3, a circulating water cooling tower 7, a cooling tower diversion pipe 8, a heat exchanger 9, a heat exchanger diversion pipe 10, a circulating water pump 12, and a diversion pipe 14. The circulating water assembly is used for water recycling.

[0026] A dosing control component is installed on the top surface of the drug support platform 13. The dosing control component is used to control the dosing of the drug.

[0027] Furthermore, the circulating water assembly includes a circulating water storage tank 2, a return pipe 3, a circulating water cooling tower 7, a cooling tower guide pipe 8, a heat exchanger 9, a heat exchanger guide pipe 10, a circulating water pump 12, and a guide pipe 14. The circulating water storage tank 2 is fixedly connected to the top surface of the working support platform 1. The guide pipe 14 is fixedly connected to the side of the circulating water storage tank 2. The circulating water pump 12 is fixedly connected to the other side of the guide pipe 14. The circulating water pump 12 is fixedly connected to the top surface of the working support platform 1. The heat exchanger guide pipe 10 is fixedly connected to the other side of the circulating water pump 12. The heat exchanger 9 is fixedly connected to the other side of the heat exchanger guide pipe 10. The heat exchanger 9 is fixedly connected to the top surface of the working support platform 1. The cooling tower guide pipe 8 is fixedly connected to the top of the heat exchanger 9. The circulating water cooling tower 7 is fixedly connected to the top of the cooling tower guide pipe 8. The return pipe 3 is fixedly connected to the other side of the circulating water cooling tower 7. Through the action of the circulating water assembly, the circulating water is recycled.

[0028] Furthermore, the dosing control component consists of a driving dosing component, a reagent replacement component, and a reagent addition component. The driving dosing component includes a one-way control valve 11, a dosing water jet injector 15, a dosing drainage pipe 17, and a conical nozzle 18. The one-way control valve 11 is fixedly connected to the side of the heat exchanger drainage pipe 10, and the dosing water jet injector 15 is fixedly connected to the other side of the one-way control valve 11. The circulating water storage tank 2 is fixedly connected to the other side of the dosing water jet injector 15, and the conical nozzle 18 is fixedly connected to the inner side of the dosing water jet injector 15. The dosing drainage pipe 17 is fixedly connected to the top surface of the dosing water jet injector 15, and the reagent replacement support frame 4 is fixedly connected to the top surface of the dosing drainage pipe 17. Through the action of the driving dosing component, negative pressure energy-saving dosing is achieved.

[0029] Furthermore, the medicine replacement assembly includes a medicine replacement support frame 4 and a medicine storage box 5. The medicine replacement support frame 4 is fixedly connected to the top surface of the medicine support platform 13, and the medicine storage box 5 is rotatably connected to the inner side of the medicine replacement support frame 4. Through the action of the medicine replacement assembly, the medicine storage box 5 can be rotated to replace the added medicine.

[0030] Furthermore, a medicine storage box 5 has a medicine tank on its inner side, and a sliding support platform 19 is fixedly connected to the inner side of the medicine tank. A medicine adding component is provided on the inner side of the sliding support platform 19.

[0031] Furthermore, the agent addition component includes a dispensing slide rod 6 and a sealing spring 16. The sealing spring 16 is fixedly connected to the top and bottom surfaces of the sliding support platform 19, and the dispensing slide rod 6 is fixedly connected to the bottom surface of the sealing spring 16. The dispensing slide rod 6 is slidably connected to the inner side of the sliding support platform 19. A drainage hole is provided on the inner bottom surface of the agent replacement support frame 4. The drainage holes are distributed in a ring at equal intervals on the inner side of the agent replacement support frame 4. The dispensing slide rod 6 is slidably connected to the inner side of the drainage hole. Through the action of the agent addition component, the addition of the agent can be controlled.

[0032] Structural Description:

[0033] Working support platform 1: The top surface is fixedly connected to the circulating water storage tank 2, the circulating water pump 12 and the heat exchanger 9, and the bottom surface is fixedly connected to the chemical support platform 13, so as to realize the layered and stable installation of the circulating water components and the chemical dosing control components.

[0034] Circulating water storage tank 2: The side is connected to the diversion pipe 14 and the return pipe 3 respectively, forming the inlet and outlet channels of circulating water. At the same time, it receives the mixture of reagent and circulating water to ensure that the mixture enters the circulation process evenly.

[0035] Return pipe 3: One end is connected to the circulating water cooling tower 7, and the other end is connected to the circulating water storage tank 2. Its function is to transport the circulating water cooled by the cooling tower back to the storage tank to complete the water circulation closed loop.

[0036] The agent replacement support frame 4 is a ring or rectangular frame structure fixed to the top surface of the agent support platform 13. It has annularly distributed drainage holes on the inner side, and the top is connected to the dosing pipe 17. The inner side is rotatably connected to the agent storage box 5, which provides rotation support for the agent storage box and guides the agent to the dosing pipe.

[0037] Chemical storage box 5: A cylindrical or polygonal box that can rotate around the chemical replacement support frame 4. The inner side has multiple independent chemical tanks and drainage holes that match the number of holes. These are used to store different chemicals such as bactericides and scale inhibitors. Each chemical tank is fixedly connected to a sliding support platform 19 for the installation of chemical addition components.

[0038] Drug dispensing slide bar 6: It is slidably connected to the inner side of the sliding support platform 19. Its bottom surface can fit with the drainage hole of the drug replacement support frame 4, and its top is fixed to the sealing spring 16. It can slide up and down by the spring force. Normally, the drainage hole is blocked, and it is opened when there is negative pressure to control the flow of the drug.

[0039] Circulating water cooling tower 7: The top / side connection of the cooling tower diversion pipe 8 and the return pipe 3 is used to receive the high-temperature circulating water delivered by the heat exchanger, reduce the water temperature through heat dissipation components such as heat sinks and fans, and then send the cooled circulating water back to the water storage tank.

[0040] Cooling tower drain pipe 8: One end is connected to the top surface of heat exchanger 9, and the other end is connected to circulating water cooling tower 7. Its function is to transport the high-temperature circulating water after heat exchange in the heat exchanger to the cooling tower for cooling.

[0041] Heat exchanger 9: Fixed to the top surface of the working support platform 1, with the heat exchanger lead pipe 10 connected to the side and the cooling tower lead pipe 8 connected to the top surface. Its core function is to allow circulating water to exchange heat with the high-temperature components of industrial equipment, absorb heat to cool the equipment, and then transport the high-temperature circulating water to the cooling tower.

[0042] Heat exchanger lead pipe 10: Corrosion-resistant pipes that connect the circulating water pump 12 and the heat exchanger 9 at both ends respectively, and a one-way control valve 11 is connected to the side branch. It is mainly used to introduce the low-temperature circulating water delivered by the circulating water pump into the heat exchanger, and at the same time, divert some water to the dosing water injector 15.

[0043] One-way control valve 11: A one-way valve installed between the heat exchanger inlet pipe 10 and the chemical dosing water jet 15, which only allows water to flow from the heat exchanger inlet pipe to the chemical dosing water jet, preventing the chemical mixture from flowing back and contaminating the main circulating water pipeline;

[0044] Circulating water pump 12: A centrifugal pump or pipeline pump fixed on the top surface of the working support platform 1. The inlet end is connected to the diversion pipe 14, and the outlet end is connected to the heat exchanger diversion pipe 10. After being powered on, it generates suction to draw circulating water in the water storage tank and provides power for the water circulation system.

[0045] Chemical support platform 13: A rectangular support platform fixed to the bottom of the working support platform 1, with the chemical replacement support frame 4 fixedly connected to the top surface, providing a stable installation base for the dosing control components;

[0046] Drainage pipe 14: Corrosion-resistant pipes that connect the circulating water storage tank 2 and the circulating water pump 12 at both ends respectively, serving as a conveying channel for the circulating water pump to draw circulating water from the storage tank, ensuring that the water flows smoothly into the pump.

[0047] Dosing water jet 15: The inner side is fixedly connected to the conical nozzle 18, the side is connected to the one-way control valve 11, the top is connected to the dosing diversion pipe 17, and the outlet end is connected to the circulating water storage tank 2. It uses the negative pressure generated by the conical nozzle to draw in the agent and mix it with the water flow, and then transports the mixture back to the storage tank.

[0048] Sealing spring 16: The top end is fixed to the bottom of the sliding support platform 19, and the bottom end is fixed to the top of the drug dispensing slide rod 6. Under normal conditions, it extends and pushes the drug dispensing slide rod to block the drainage hole. Under negative pressure, it is compressed to allow the drug dispensing slide rod to slide, and it has both sealing and reset functions.

[0049] Dosing pipe 17: The two ends are respectively connected to the top surface of the dosing water jet injector 15 and the chemical replacement support frame 4, and are used to guide the chemical flowing out of the drain hole into the dosing water jet injector;

[0050] Conical nozzle 18: A contraction-expansion type nozzle fixed inside the dosing water jet 15. When water flows through it, the flow velocity increases due to the narrowing of the flow channel. According to Bernoulli's principle, negative pressure is generated to provide power for the inhalation of the drug and at the same time promote the mixing of the drug and the water.

[0051] Sliding support platform 19: A ring or rectangular support structure fixed in the medicine tank of medicine storage box 5, with a sliding hole on the inner side adapted to the medicine dispensing slide rod 6 to provide sliding guidance for the medicine dispensing slide rod, and a sealing spring 16 fixed on the top to support the spring;

[0052] Working Principle: When this invention is needed, circulating water is first stored in the circulating water storage tank 2 on the top surface of the working support platform 1. When the system starts, the circulating water pump 12 is powered on and runs, drawing circulating water from the circulating water storage tank 2 through the diversion pipe 14 to form the initial water flow force. The circulating water pump 12 transports the circulating water to the heat exchanger 9 through the heat exchanger diversion pipe 10. Inside the heat exchanger 9, the circulating water exchanges heat with the high-temperature components of the industrial equipment, absorbing heat and increasing in temperature. After heat exchange, the high-temperature circulating water is transported to the circulating water cooling tower 7 through the cooling tower diversion pipe 8. The cooling tower achieves liquid cooling and recycling of the circulating water through air cooling or water cooling. The cooled circulating water flows back to the circulating water storage tank 2 through the return pipe 3. When chemical addition is required, when the circulating water flows in the heat exchanger diversion pipe 10, part of the water flows into the dosing water jet 15 through the one-way control valve 11. The conical nozzle 18 fixed inside the dosing water jet 15 uses a contraction- The expansion channel design causes a sharp increase in flow velocity as water flows through the conical nozzle 18, reducing the channel cross-section. According to Bernoulli's principle, this increased velocity lowers the pressure in the corresponding area inside the dosing injector 15, creating a negative pressure environment. The top surface of the dosing injector 15 is connected to the chemical replacement support frame 4 via the dosing pipe 17. The negative pressure generated inside the injector creates suction on the chemical in the chemical replacement support frame 4 through the dosing pipe 17, drawing the chemical from the chemical storage tank 5 into the dosing injector 15. The drawn-in chemical mixes thoroughly with the circulating water flowing through the conical nozzle 18, forming a "chemical-water" mixture. This mixture then flows back to the circulating water storage tank 2 through the outlet of the dosing injector 15, completing one dosing cycle. The one-way control valve 11 only allows circulating water from the heat exchanger's drain pipe 10 to flow into the dosing injector 15 in one direction, effectively preventing the "chemical-water" mixture from entering the injector 15. The mixed liquid flows back to the heat exchanger's drain pipe 10 to avoid contaminating the main circulating water pipe or affecting the normal heat exchange function of the heat exchanger 9. Meanwhile, the core of the chemical replacement component is the rotatable chemical storage tank 5, which has multiple independent chemical tanks on its inner side to store different types of chemicals such as bactericides, scale inhibitors, corrosion inhibitors, and concentrated sulfuric acid. Each chemical tank is equipped with a chemical addition component. When it is necessary to switch chemicals, simply rotate the chemical storage tank 5 manually so that the chemical tank containing the target chemical is aligned with the drain hole on the bottom inner side of the chemical replacement support frame 4. This completes the chemical type switching without disassembling or replacing the chemical container. The operation is convenient and the switching efficiency is high. The chemical addition component controls the amount of chemical through the elastic linkage between the sealing spring 16 and the dispensing slide 6: In the initial state, the sealing spring 16 is in a naturally extended state, pushing the dispensing slide 6 downward to block the drain hole of the chemical replacement support frame 4 at its bottom, preventing chemical leakage.When the dosing water jet injector 15 generates negative pressure, the negative pressure acts on the bottom of the dispensing slide rod 6 through the drain hole, overcoming the elastic force of the sealing spring 16 and pushing the dispensing slide rod 6 downward. At this time, the drain hole opens, and the pesticide in the pesticide tank flows into the dosing water jet injector 15 through the drain hole and the dosing guide pipe 17.

[0053] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A highly efficient and energy-saving dosing device for a circulating water system, characterized in that, include: A working support platform (1) is provided. A circulating water storage tank (2) is fixedly connected to the top surface of the working support platform (1). A chemical support platform (13) is fixedly connected to the bottom surface of the working support platform (1). A circulating water assembly is provided on the side of the circulating water storage tank (2). The circulating water assembly consists of a circulating water storage tank (2), a return pipe (3), a circulating water cooling tower (7), a cooling tower diversion pipe (8), a heat exchanger (9), a heat exchanger diversion pipe (10), a circulating water pump (12), and a diversion pipe (14). The circulating water assembly is used for water recycling. A dosing control component is installed on the top surface of the drug support platform (13), which is used to control the dosing of the drug.

2. The high-efficiency and energy-saving dosing device for a circulating water system according to claim 1, characterized in that, The circulating water assembly includes a circulating water storage tank (2), a return pipe (3), a circulating water cooling tower (7), a cooling tower diversion pipe (8), a heat exchanger (9), a heat exchanger diversion pipe (10), a circulating water pump (12), and a diversion pipe (14). The top surface of the working support platform (1) is fixedly connected to the circulating water storage tank (2), the side surface of the circulating water storage tank (2) is fixedly connected to the diversion pipe (14), and the other side of the diversion pipe (14) is fixedly connected to the circulating water pump (12). The top surface of the working support platform (1) is fixedly connected to the circulating water storage tank (2). A circulating water pump (12) is fixedly connected to the other side of the circulating water pump (12), and a heat exchanger drain pipe (10) is fixedly connected to the other side of the heat exchanger drain pipe (10). A heat exchanger (9) is fixedly connected to the top surface of the working support platform (1). A cooling tower drain pipe (8) is fixedly connected to the top surface of the heat exchanger (9). A circulating water cooling tower (7) is fixedly connected to the top of the cooling tower drain pipe (8). A return pipe (3) is fixedly connected to the other side of the circulating water cooling tower (7).

3. The high-efficiency and energy-saving dosing device for a circulating water system according to claim 1, characterized in that, The dosing control assembly consists of a driving dosing assembly, a reagent replacement assembly, and a reagent addition assembly. The driving dosing assembly includes a one-way control valve (11), a dosing water jet injector (15), a dosing drainage pipe (17), and a conical nozzle (18). The one-way control valve (11) is fixedly connected to the side of the heat exchanger drainage pipe (10). The dosing water jet injector (15) is fixedly connected to the other side of the one-way control valve (11). A circulating water storage tank (2) is fixedly connected to the other side of the dosing water jet injector (15). The conical nozzle (18) is fixedly connected to the inner side of the dosing water jet injector (15). The dosing drainage pipe (17) is fixedly connected to the top surface of the dosing water jet injector (15). A reagent replacement support frame (4) is fixedly connected to the top surface of the dosing drainage pipe (17).

4. The high-efficiency and energy-saving dosing device for a circulating water system according to claim 3, characterized in that, The drug replacement assembly includes a drug replacement support frame (4) and a drug storage box (5). The top surface of the drug support platform (13) is fixedly connected to the drug replacement support frame (4), and the inside of the drug replacement support frame (4) is rotatably connected to the drug storage box (5).

5. The high-efficiency and energy-saving dosing device for a circulating water system according to claim 4, characterized in that, The medicine storage box (5) has a medicine tank on its inner side, and a sliding support platform (19) is fixedly connected to the inner side of the medicine tank. A medicine adding component is provided on the inner side of the sliding support platform (19).

6. The high-efficiency and energy-saving dosing device for a circulating water system according to claim 5, characterized in that, The drug addition assembly includes a drug dispensing slide rod (6) and a sealing spring (16). The top and bottom surfaces of the sliding support platform (19) are fixedly connected to the sealing spring (16), and the bottom surface of the sealing spring (16) is fixedly connected to the drug dispensing slide rod (6). The inside of the sliding support platform (19) is slidably connected to the drug dispensing slide rod (6). The bottom surface of the drug replacement support frame (4) is provided with a drainage hole. The drainage holes are distributed in a ring at equal intervals on the inside of the drug replacement support frame (4). The inside of the drainage hole is slidably connected to the drug dispensing slide rod (6).

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