Compact closed automatic dosing device

CN224619666UActive Publication Date: 2026-08-11DONGGUAN JINGGONG AUTOMATION EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-12
Publication Date
2026-08-11

AI Technical Summary

Technical Problem

这些行业和领域都需要大量使用循环冷却水进行长期的冷却作用,同时也面临着循环水质量管理和控制的重要任务,为防止循环冷却水内生物和矿物质的污染和积聚,需要定期添加适量化学药剂;传统方式是人工定期添加化学品,效率低下、难以控制剂量,且安全性较差,随着工业自动化水平的提高,出现了自动化的化学品加药装置来替代人工加药,这种一体化装置将化学品储存、输送和控制等功能整合在一个封闭式单元内,实现自动精确加药

Benefits of technology

[0014]本实用新型的紧凑型闭式自动加药装置通过集成设计,将水质检测与药剂投送功能紧密结合,显著提升了药剂投放的精准度和效率。具体而言,通过将水质采集模块与药剂投送模块直接相连,实现了对循环水质的实时监测与快速响应。当水质检测器检测到水质指标偏离预设范围时,药剂泵能够立即启动,将适量药剂精准投送至水质采集模块处理后的水体中,从而有效避免了药剂浪费和扩散不均的问题。

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Abstract

This utility model relates to a compact closed-loop automatic dosing device in the field of automatic dosing technology. It includes a water tank, a water quality acquisition module, and a chemical delivery module. The chemical delivery module includes a water pump and a chemical pump. The input and output ends of the water pump are connected to the water tank and the water quality acquisition module, respectively, and the output end of the chemical pump is connected to the output end of the water quality acquisition module. This compact closed-loop automatic dosing device integrates water quality detection and chemical delivery functions through its integrated design, significantly improving the accuracy and efficiency of chemical dosing. Specifically, by directly connecting the water quality acquisition module and the chemical delivery module, real-time monitoring and rapid response of circulating water quality are achieved. When the water quality detector detects that a water quality indicator deviates from a preset range, the chemical pump can immediately start, accurately delivering an appropriate amount of chemical to the water body treated by the water quality acquisition module, thereby effectively avoiding chemical waste and uneven diffusion.
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Description

Technical Field

[0001] This utility model relates to the field of automatic dosing technology, specifically to a compact closed-loop automatic dosing device. Background Technology

[0002] Currently, many industrial production sectors require large amounts of circulating cooling water for cooling. For example, power plants need to cool steam turbines and generators during power generation, injection molds dissipate heat during molding, and data centers and server rooms rely on circulating cooling water to cool equipment. These industries and sectors require large amounts of circulating cooling water for long-term cooling, and also face the important task of managing and controlling the quality of this circulating water. To prevent biological and mineral contamination and accumulation in the circulating cooling water, appropriate amounts of chemical agents need to be added periodically. Traditionally, chemicals are added manually at regular intervals, which is inefficient, difficult to control dosage, and has poor safety. With the improvement of industrial automation, automated chemical dosing devices have emerged to replace manual dosing. This integrated device integrates chemical storage, transportation, and control functions into a closed unit, achieving automatic and precise dosing.

[0003] However, existing automatic dosing devices still have some shortcomings. Generally, existing dosing devices design the dosing module for dispensing chemicals and the detection module for monitoring circulating water separately. This results in the dosing module being unable to accurately deliver the corresponding amount of chemicals to the appropriate water body, often affecting the chemical diffusion effect and seriously impacting the utilization rate of the chemicals. To solve this technical problem, this utility model proposes a compact closed-loop automatic dosing device. Summary of the Invention

[0004] This invention provides a compact, closed-loop automatic dosing device to solve the problems mentioned in the background section.

[0005] The objective of this utility model is achieved through the following means:

[0006] A compact closed-loop automatic dosing device includes a water tank, a water quality acquisition module, and a chemical delivery module. The water tank has an inlet and an outlet at its upper and lower ends, respectively. The chemical delivery module includes a water pump and a chemical pump. The input and output ends of the water pump are connected to the water tank and the water quality acquisition module, respectively. The output end of the chemical pump is connected to the output end of the water quality acquisition module, and the output end of the water quality acquisition module is connected to the water tank.

[0007] Furthermore, the water quality acquisition module includes a detection pipe and a turbidity detector, a pH detector, and a conductivity detector installed on the detection pipe. The detection pipe is divided into two branches in the middle, and the pH detector and conductivity detector are respectively installed on the two branches. The two ends of the detection pipe are connected to the water pump and the water tank, respectively.

[0008] Furthermore, the water tank is provided with an openable and closable forced overflow valve in the middle, and an overflow port is provided at the upper end of the water tank.

[0009] Furthermore, the bottom of the water tank is provided with an openable and closable drain valve.

[0010] Furthermore, the input end of the water pump is connected to the water tank through a first pipe, and the output end of the water quality acquisition module is connected to the water tank through a second pipe. Control valve ports are correspondingly provided on both the first and second pipes.

[0011] Furthermore, one end of the first pipe extends vertically downward along the depth direction of the water tank, and a float valve is provided at the end of the first pipe near the water tank.

[0012] Furthermore, a level gauge is installed on one side of the water tank, and a water pressure sensor is installed at the input end of the water pump.

[0013] Furthermore, a reinforcing frame is provided on the outside of the water tank.

[0014] This utility model's compact closed-loop automatic dosing device integrates water quality detection and chemical delivery functions through a unified design, significantly improving the accuracy and efficiency of chemical dosing. Specifically, by directly connecting the water quality acquisition module and the chemical delivery module, real-time monitoring and rapid response to circulating water quality are achieved. When the water quality detector detects that a water quality indicator deviates from the preset range, the chemical pump can immediately start, accurately delivering an appropriate amount of chemical to the water body treated by the water quality acquisition module, thereby effectively avoiding chemical waste and uneven diffusion. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a compact closed-loop automatic dosing device according to the present invention;

[0016] Figure 2 This is a top view of a compact closed-type automatic dosing device according to the present invention;

[0017] Figure 3This is a schematic diagram of the water quality acquisition module and the reagent delivery module of this utility model; the reference numerals in the figure are as follows: 1-water tank, 101-inlet, 102-outlet, 103-overflow, 2-water quality acquisition module, 201-detection pipe, 2010-tributary, 2011-first interface, 2012-second interface, 2013-third interface, 202-turbidity detector, 203-pH detector, 204-conductivity detector, 3-water pump, 4-reagent pump, 5-forced overflow valve, 6-float valve, 7-drain valve, 8-level gauge, 9-reinforced frame, 10-control valve, 11-first pipe, 12-second pipe, 13-water pressure sensor. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] In this embodiment, refer to Figure 1 - Figure 3 The present invention relates to a compact closed-loop automatic chemical dosing device, comprising a water tank 1, a water quality acquisition module 2, and a chemical delivery module. The water tank 1 has an inlet 101 and an outlet 102 at its upper and lower ends, respectively. The chemical delivery module includes a water pump 3 and a chemical pump 4. The input and output ends of the water pump 3 are connected to the water tank 1 and the water quality acquisition module 2, respectively. The output end of the chemical pump 4 is connected to the output end of the water quality acquisition module 2, and the output end of the water quality acquisition module 2 is connected to the water tank 1. The chemical pump 4 is a high-precision metering pump to ensure accurate proportioning of the chemical, thereby improving the water treatment effect.

[0020] The water quality acquisition module 2 includes a detection pipe 201 and a turbidity detector 202, a pH detector 203, and a conductivity detector 204 installed on the detection pipe 201. The detection pipe 201 is divided into two branches 2010 in the middle. The pH detector 203 and conductivity detector 204 are respectively installed on the two branches 2010. The beginning and end of the detection pipe 201 are connected to the water pump 3 and the water tank 1, respectively. The end of the detection pipe 201 also has a first interface 2011 for connecting to the reagent pump 4. The ends of the two branches 2010 are respectively provided with a second interface 2012 and a third interface 2013, which are used to connect to the inlet and outlet of the turbidity detector 202, respectively. This segmented branch design avoids mutual interference between different detection items, improving detection efficiency and accuracy.

[0021] The turbidity detector 202 is used to monitor the concentration of suspended particulate matter in the water, reflecting the clarity of the water; the pH detector 203 is used to measure the acidity or alkalinity of the water, which is one of the important indicators for assessing whether the water quality is suitable for a specific purpose; and the conductivity detector 204 indirectly reflects the content of dissolved salts in the water by measuring the conductivity of the water.

[0022] The water tank 1 is provided with an overflow port 103 at the upper end. The design of the overflow port 103 can ensure that when the water level in the water tank 1 exceeds the preset safety line, the excess water can be safely discharged through this valve port, preventing the water tank 1 from overflowing due to excessive water level, causing equipment damage or environmental pollution.

[0023] Furthermore, the water tank 1 is provided with an openable and closable forced overflow valve 5 in the middle. In the event of an emergency, such as a power outage or equipment failure causing an abnormal rise in water level, the excess water can be quickly discharged by manually operating the forced overflow valve 5.

[0024] Furthermore, the bottom of the water tank 1 is provided with an openable and closable drain valve 7. When it is necessary to thoroughly clean and maintain the water tank 1, the wastewater in the water tank 1 can be discharged by opening and closing the drain valve 7, ensuring the cleanliness of the inside of the water tank 1 and the long-term stable operation of the equipment.

[0025] The input end of the water pump 3 is connected to the water tank 1 through the first pipe 11, and the output end of the water quality acquisition module 2 is connected to the water tank 1 through the second pipe 12. The first pipe 11 and the second pipe 12 are each equipped with a control valve 10. By opening and closing the control valve 10, the water flow rate can be precisely controlled to ensure the smooth progress of water quality acquisition and treatment.

[0026] Furthermore, one end of the first pipe 11 extends vertically downwards along the depth direction of the water tank 1. A float valve 6 is installed at the end of the first pipe 11 near the water tank 1. The float valve 6 is designed to automatically rise and fall with changes in the water level in the water tank 1. When the water level reaches a preset height, the float valve 6 automatically starts and stops the water pump 3 to prevent the water pump 3 from sucking dry and ensure stable operation of the equipment. At the same time, the automatic adjustment function of the float valve 6 also reduces the tediousness of manual operation and improves the automation level of the equipment.

[0027] The input end of the reagent pump 4 is connected to the reagent storage tank through a third pipe to ensure that the reagent can be stably and continuously supplied to the water quality acquisition module 2.

[0028] Furthermore, the compact closed-loop automatic dosing device also includes a control system, which is electrically connected to the water pump 3, the chemical pump 4, the turbidity detector 202, the pH detector 203, the conductivity detector 204, and each control valve 10. Through preset program settings, the control system can automatically receive data from each detector and determine the water quality status based on the data, thereby automatically adjusting the operating status of the water pump 3 and the chemical pump 4, and controlling the opening and closing of each control valve 10, achieving automated operation of the entire dosing device.

[0029] In this embodiment, a level gauge 8 is installed on one side of the water tank 1. The level gauge 8 consists of a transparent tube and connecting pipes at both ends of the transparent tube. The connecting pipes are connected to the water tank 1, and the transparent tube is used to observe changes in the water level inside the water tank 1. The level gauge 8 allows for a direct view of the water volume in the water tank 1, facilitating timely adjustment and monitoring. Simultaneously, the transparent tube also allows for direct observation of the water quality, enabling operators to understand and monitor the equipment's operating status and make necessary adjustments and maintenance. A water pressure sensor 13 is installed at the input end of the water pump.

[0030] Furthermore, a reinforcing frame 9 is provided on the outside of the water tank 1. The reinforcing frame 9 is used to improve the overall strength and stability of the water tank 1, ensuring that the water tank 1 is not easily deformed or damaged during long-term use.

[0031] This utility model's compact closed-loop automatic dosing device integrates water quality detection and chemical delivery functions through a unified design, significantly improving the accuracy and efficiency of chemical dosing. Specifically, by directly connecting the water quality acquisition module 2 to the chemical delivery module, real-time monitoring and rapid response of circulating water quality are achieved. When the water quality detector detects that the water quality index deviates from the preset range, the chemical pump 4 can be activated immediately to accurately deliver an appropriate amount of chemical to the water body treated by the water quality acquisition module 2, thereby effectively avoiding the problems of chemical waste and uneven diffusion.

[0032] The automatic dosing device in this embodiment is used as follows: External industrial circulating water to be treated enters the water tank 1 through the inlet 101. When the float valve 6 detects that the water level in the water tank 1 has reached a preset height, the water pump 3 starts, pumping the circulating water in the water tank 1 to the water quality acquisition module 2. The water quality acquisition module 2 detects the water quality of the circulating water, and based on the detection results, the chemical pump 4 at the end of the module adds the corresponding amount of chemical to the circulating water. The treated circulating water returns to the water tank 1 through the second pipe 12, and is finally transported to the outside through the outlet 102.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. A compact closed-loop automatic dosing device, comprising a water tank (1), a water quality acquisition module (2), and a chemical delivery module, wherein the water tank (1) is provided with an inlet (101) and an outlet (102) at its upper and lower ends, respectively, characterized in that: The agent delivery module includes a water pump (3) and an agent pump (4). The input and output ends of the water pump (3) are connected to the water tank (1) and the water quality acquisition module (2) respectively. The output end of the agent pump (4) is connected to the output end of the water quality acquisition module (2), and the output end of the water quality acquisition module (2) is connected to the water tank (1).

2. The compact closed-loop automatic dosing device according to claim 1, characterized in that: The water quality acquisition module (2) includes a detection pipe (201) and a turbidity detector (202), a pH detector (203) and a conductivity detector (204) installed on the detection pipe (201). The detection pipe (201) is divided into two branches (2010) in the middle. The pH detector (203) and the conductivity detector (204) are respectively installed on the two branches (2010). The two ends of the detection pipe (201) are respectively connected to the water pump (3) and the water tank (1).

3. The compact closed-loop automatic dosing device according to claim 1, characterized in that: The water tank (1) is provided with an openable and closable forced overflow valve (5) in the middle and an overflow port (103) at the upper end of the water tank (1).

4. The compact closed-loop automatic dosing device according to claim 1, characterized in that: The bottom of the water tank (1) is provided with an openable and closable drain valve (7).

5. A compact closed-loop automatic dosing device according to any one of claims 1-4, characterized in that: The input end of the water pump (3) is connected to the water tank (1) through the first pipe (11), and the output end of the water quality acquisition module (2) is connected to the water tank (1) through the second pipe (12). Control valve ports (10) are provided on the first pipe (11) and the second pipe (12).

6. The compact closed-loop automatic dosing device according to claim 5, characterized in that: One end of the first pipe (11) extends vertically downward along the depth direction of the water tank (1), and a float valve (6) is provided at the end of the first pipe (11) near the water tank (1).

7. The compact closed-loop automatic dosing device according to claim 1, characterized in that: A level gauge (8) is provided on one side of the water tank (1), and a water pressure sensor (13) is provided at the input end of the water pump.

8. The compact closed-loop automatic dosing device according to claim 1, characterized in that: The water tank (1) is provided with a reinforcing frame (9) on the outside.