Multifunctional dosing device of closed circulating water system

By designing a multi-functional dosing device for a closed-loop circulating water system, the problems of inaccurate dosing and inconvenient operation were solved, achieving precise control and uniform dosing of chemicals, and improving the system's operational stability and efficiency.

CN224212416UActive Publication Date: 2026-05-08AQUA WORTH SUZHOU ENVIRONMENTAL PROTECTION
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
AQUA WORTH SUZHOU ENVIRONMENTAL PROTECTION
Filing Date
2025-04-14
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Closed-loop circulating water systems suffer from inaccurate dosing and inconvenient operation during chemical dosing, leading to decreased system efficiency and a high risk of system failure.

Method used

A multifunctional dosing device for a closed-loop circulating water system was designed, including a circulation pipeline, a chemical mixing component, branch lines, and a stirring component. The dosing amount is controlled by a flow meter, the branch lines ensure the flow of circulating water, and the stirring component ensures uniform mixing of the chemicals, thus achieving precise dosing.

Benefits of technology

It improves the efficiency and accuracy of chemical dosing in closed-loop water systems, reduces the probability of system failure due to insufficient or uneven chemical dosing, and ensures uniform chemical dosing and stable system operation.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a multifunctional dosing device for a closed circulating water system. The multifunctional dosing device comprises a circulating pipeline; the medicament mixing assembly comprises a main body tank and a medicament mixing tank, the medicament mixing tank is mounted on the upper side of the main body tank, the main body tank is connected with the circulating pipeline, and a medicament inlet valve is arranged at the bottom of the medicament mixing tank; and the branch is connected with the circulating pipeline. The closed circulating water dosing device has the beneficial effects that the dosing efficiency and accuracy of a closed circulating water system can be effectively improved, multiple functions of dosing various closed circulating water medicaments by one set of device are realized, and the probability of system paralysis caused by insufficient dosing or non-uniform dosing of the closed circulating water system is greatly reduced.
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Description

Technical Field

[0001] This utility model relates to the field of water treatment technology, specifically to a multifunctional dosing device for a closed circulating water system. Background Technology

[0002] With industrial development and increasing consumer demand, water consumption has increased dramatically, making water conservation a top priority. Water, due to its abundant supply, low price, and high heat capacity, is widely used as a cooling medium. Using circulating cooling water is a crucial way to conserve water resources. During operation, industrial circulating water systems are susceptible to scaling or corrosion due to a combination of factors, including the hardness, pH value, concentration factor, and the proliferation of microorganisms. Both of these factors negatively impact the safety and operational efficiency of the circulating cooling system. To inhibit scaling or corrosion, chemicals are added to the water to improve its pH value, kill microorganisms, alleviate corrosion, and prevent scale formation.

[0003] In existing circulating water treatment systems, there are two main types: open circulating water systems and closed circulating water systems. Closed circulating water systems have problems such as inaccurate dosing, significant short-term impact on water quality during dosing, and inconvenience in on-site dosing operations. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a multifunctional dosing device for closed-loop water systems, which can effectively improve the dosing efficiency and accuracy of closed-loop water systems, realize multiple functions of dosing various types of closed-loop water agents with one device, and greatly reduce the probability of system paralysis due to insufficient or uneven dosing of chemicals.

[0005] Specifically, this utility model discloses a multifunctional dosing device for a closed-loop circulating water system, comprising:

[0006] Circulation piping;

[0007] A pharmaceutical mixing assembly includes a main tank and a pharmaceutical mixing tank, wherein the main tank is connected to the circulation pipeline, and a pharmaceutical inlet valve is provided at the bottom of the pharmaceutical mixing tank;

[0008] A branch line is connected to the circulation pipeline.

[0009] The advantage of adopting the above technical solution is that it can effectively improve the dosing efficiency and accuracy of closed-loop circulating water systems, realize the multiple functions of dosing multiple types of closed-loop circulating water agents with one device, and greatly reduce the probability of system paralysis due to insufficient or uneven dosing of closed-loop circulating water systems.

[0010] Furthermore, the top of the drug mixing tank is provided with a drug inlet slot, and the top of the drug inlet slot is provided with an opening.

[0011] The advantage of adopting the above technical solution is that the setting of the drug inlet tank facilitates the addition of drugs. The drugs are first mixed in the drug mixing tank and then added, ensuring that the drugs can be added evenly.

[0012] Furthermore, the pharmaceutical mixing tank is connected to a flow meter.

[0013] The advantage of adopting the above technical solution is that the flow meter setting can control the dosage, achieving precise control and uniform delivery of the dosage.

[0014] Furthermore, water inlet pipes and water outlet pipes are provided on both sides of the main tank. The water inlet pipes are equipped with inlet valves, and the water outlet pipes are equipped with outlet valves. The water inlet pipes and the water outlet pipes are connected to the circulation pipeline.

[0015] The advantage of adopting the above technical solution is that by setting up inlet and outlet pipes connected to the circulation pipeline, the inlet valve and outlet valve are closed when no chemical addition is needed, and the inlet valve and outlet valve are opened when chemical addition is needed, so that the chemical solution inside the main tank enters the circulation pipeline.

[0016] Furthermore, the branch is equipped with a bypass inlet valve and a bypass outlet valve, and the inlet of the branch is located on both sides of the drug mixing assembly.

[0017] The advantage of adopting the above technical solution is that the branch circuit is connected to the circulating water when no chemicals are added, ensuring the circulation of the circulating water. At the same time, it is controlled by valves, which makes the control convenient.

[0018] Furthermore, a top cover is provided on the top of the medicine inlet slot, and the top cover is hinged to the medicine inlet slot.

[0019] The advantage of adopting the above technical solution is that the top cover can be closed when no medicine is added, preventing dust from entering.

[0020] Furthermore, connection ports are provided on both sides of the main body groove, and the water inlet pipe and the water outlet pipe are detachably connected to the connection ports.

[0021] The advantages of adopting the above technical solution are that the connection port facilitates the connection of the entire main tank, facilitates the disassembly of the main tank, facilitates the transfer for chemical addition to different circulating water systems, and reduces costs.

[0022] Furthermore, a circulation pump is installed in the circulation pipeline.

[0023] The advantage of adopting the above technical solution is that the circulating pump drives the flow of circulating water.

[0024] Furthermore, the mixing tank is equipped with a stirring assembly, including a stirring shaft and stirring blades, and the stirring shaft drives the stirring blades to rotate.

[0025] The advantage of adopting the above technical solution is that the stirring component is designed to fully mix the medicine and ensure that the medicine is uniform. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0027] Figure 1 This is a schematic diagram of the overall structure of the multifunctional dosing device for a closed-loop water system of this utility model.

[0028] Figure 2 This is a top view of the pharmaceutical mixing tank of this utility model.

[0029] The reference numerals used in the attached figures are as follows:

[0030] Circulation pipeline 1; main tank 2; inlet pipe 21; outlet pipe 22; inlet valve 23; outlet valve 24; connection port 25; reagent mixing tank 3; reagent inlet valve 31; reagent inlet tank 32; flow meter 33; top cover 34; branch line 4; bypass inlet valve 41; bypass outlet valve 42; circulation pump 5; stirring shaft 6; stirring blades 61; heat exchange equipment 7. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings.

[0032] like Figure 1-2 As shown, this utility model discloses a multifunctional dosing device for a closed-loop circulating water system, comprising:

[0033] Circulation pipeline 1;

[0034] The drug mixing assembly includes a main tank 2 and a drug mixing tank 3. The drug mixing tank 3 is installed on the upper side of the main tank 2 and connected by a pipeline. The main tank 2 is connected to the circulation pipeline 1. A drug inlet valve 31 is provided at the bottom of the drug mixing tank 3.

[0035] Branch 4 is connected to the circulation pipeline 1.

[0036] The advantage of adopting the above technical solution is that it can effectively improve the dosing efficiency and accuracy of closed-loop circulating water systems, realize the multiple functions of dosing multiple types of closed-loop circulating water agents with one device, and greatly reduce the probability of system paralysis due to insufficient or uneven dosing of closed-loop circulating water systems.

[0037] In some implementations, a drug inlet trough 32 is provided on the top of the drug mixing tank 3. The drug inlet trough 32 and the drug mixing tank can be welded together. The top of the drug inlet trough 32 is provided with an opening that expands outward to facilitate drug addition. This allows the drug to be mixed in the drug inlet first, ensuring uniform drug addition.

[0038] Furthermore, a drug outlet pipe is installed on the lower side of the drug mixing tank 3. The bottom of the drug outlet pipe is connected to the main tank 2. A support frame is installed on the entire main tank 2 to support the drug mixing tank 3. At the same time, the drug inlet valve 31 and the flow meter 33 are both installed on the drug outlet pipe. The drug inlet valve 31 is an electric valve or a pneumatic valve, which works with the flow meter 33 to control the amount of drug added, so as to achieve precise control of the amount of drug.

[0039] In some implementation schemes, the main tank 2 is provided with an inlet pipe 21 and an outlet pipe 22 on both sides. The inlet pipe 21 is equipped with an inlet valve 23, and the outlet pipe 22 is equipped with an outlet valve 24. The inlet pipe 21 and the outlet pipe 22 are connected to the circulation pipeline 1. The inside of the main tank 2 is a receiving cavity, and the outside is provided with a connection port 25. The connection port 25 is fixed to the outside of the main tank 2 by welding and communicates with the internal receiving cavity. The connection port 25 is detachably connected to the inlet pipe 21 and the outlet pipe 22. During the dosing process, the circulating water enters the receiving cavity and mixes with the agent, and then enters the circulation system with the water flow to achieve uniform dosing.

[0040] During use, a section of flexible hose can be connected to the connection port 25. The end of the flexible hose is connected to a quick connector, which facilitates the disassembly and assembly of the inlet pipe 21 and the outlet pipe 22. Handles are provided on both sides of the main tank 2 to facilitate the transfer of the entire dosing device. When dosing is not required, the inlet valve 23 and the outlet valve 24 are closed. When dosing is required, the inlet valve 23 and the outlet valve 24 are opened.

[0041] Furthermore, a top cover 34 is provided on the top of the medicine inlet groove 32, and the top cover 34 is hinged to the medicine inlet groove 32.

[0042] In some implementations, branch line 4 is equipped with a bypass inlet valve 41 and a bypass outlet valve 42. The two ends of branch line 4 are located on both sides of the reagent mixing assembly, so that branch line 4 and the inlet pipe 21 and outlet pipe 22 of the main tank 2 are connected in parallel. When no chemicals are added, circulating water is connected through branch line 4 to ensure circulation. The circulation is controlled by valves for convenient operation. When chemicals are added, the bypass inlet valve 41 and bypass outlet valve 42 are closed.

[0043] Furthermore, a circulation pump 5 is installed in the circulation pipeline 1. The circulation pump 5 drives the liquid flow in the circulation pipeline 1. At the same time, the liquid in the circulation pipeline 1 passes through heat exchange equipment 7 and cooling equipment, etc., to realize the heat exchange function of the entire circulation pipeline 1.

[0044] Furthermore, the mixing tank 3 is equipped with a stirring assembly, including a stirring shaft 6 and stirring blades 61. The stirring shaft 6 drives the stirring blades 61 to rotate. The stirring shaft 6 is rotatably disposed in the mixing tank 3, with its end extending out of the mixing tank 3. A sealing element is provided at the extended position for sealing. The stirring shaft 6 is driven to rotate by a motor, and the stirring blades 61 are sleeved on the stirring shaft 6.

[0045] The advantage of adopting the above technical solution is that the stirring component is designed to fully mix the reagents.

[0046] During operation, the closed-loop circulating water system is running. The inlet valves 23 and outlet valves 24 on both sides of the main tank 2 of the dosing device are closed. The bypass inlet valve 41 and bypass outlet valve 42 of the closed-loop circulating water system are opened, allowing the circulating water to flow normally. The chemicals are added from the chemical inlet tank 32 and uniformly mixed in the chemical mixing tank 3 of the dosing device. Simultaneously, the dosage is measured. The chemical inlet valve 31, which enters the main tank 2 from the chemical mixing tank 3, is opened, allowing the chemicals to enter the main tank 2. The chemical inlet valve 31 is then closed, and the outlet valves 24 and inlet valves 23 on both sides of the main tank 2 of the dosing device are opened. The bypass inlet valve 41 and bypass outlet valve 42 on the branch line 4 are closed, allowing the chemicals to enter the closed system along with the circulating water and mix evenly. Different chemicals for the closed-loop circulating water system can be added in batches according to the above operation.

[0047] The application of multi-functional dosing devices for closed-loop water systems can effectively improve the efficiency and accuracy of dosing in closed-loop water systems. It enables a single device to dosing multiple types of chemicals for closed-loop water systems, greatly reducing the probability of system failure due to insufficient or uneven dosing. Compared with traditional dosing methods, it offers higher accuracy, shorter dosing time, and less impact on the operation of the closed-loop water system. It is applicable to a wide range of scenarios and has a broad market prospect.

[0048] For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A multifunctional dosing device for a closed-loop circulating water system, characterized in that, include: Circulation pipeline (1); The drug mixing assembly includes a main tank (2) and a drug mixing tank (3). The main tank (2) is connected to the circulation pipeline (1). The drug mixing tank (3) is provided with a drug inlet valve (31) at the bottom. Branch (4) is connected to the circulation pipeline (1).

2. The multifunctional dosing device for a closed-loop circulating water system according to claim 1, characterized in that, The top of the drug mixing tank (3) is provided with a drug inlet tank (32), and the top of the drug inlet tank (32) is provided with an opening.

3. The multifunctional dosing device for a closed-loop circulating water system according to claim 1, characterized in that, The pharmaceutical mixing tank (3) is connected to a flow meter (33).

4. The multifunctional dosing device for a closed-loop circulating water system according to claim 1, characterized in that, The main tank (2) is provided with an inlet pipe (21) and an outlet pipe (22) on both sides. The inlet pipe (21) is provided with an inlet valve (23), and the outlet pipe (22) is provided with an outlet valve (24). The inlet pipe (21) and the outlet pipe (22) are connected to the circulation pipeline (1).

5. The multifunctional dosing device for a closed-loop circulating water system according to claim 1, characterized in that, The branch (4) is equipped with a bypass inlet valve (41) and a bypass outlet valve (42), and the inlet of the branch (4) is located on both sides of the drug mixing assembly.

6. The multifunctional dosing device for a closed-loop circulating water system according to claim 2, characterized in that, The top of the medicine inlet groove (32) is provided with a cover (34), which is hinged to the medicine inlet groove (32).

7. The multifunctional dosing device for a closed-loop circulating water system according to claim 1, characterized in that, The main body groove (2) is provided with connection ports (25) on both sides, and the water inlet pipe (21) and the water outlet pipe (22) are detachably connected to the connection ports (25).

8. The multifunctional dosing device for a closed-loop circulating water system according to claim 1, characterized in that, The circulation pipeline (1) is equipped with a circulation pump (5).

9. The multifunctional dosing device for a closed-loop circulating water system according to claim 1, characterized in that, The mixing tank (3) is equipped with a stirring assembly, including a stirring shaft (6) and stirring blades (61), and the stirring shaft (6) drives the stirring blades (61) to rotate.