Cooling water system with online monitoring of water quality

Abstract

The utility model provides a cooling water system with water quality on -line monitoring, including central monitoring and early warning platform, including acquisition module, analysis module, alarm module and remote communication module, gather signal through acquisition module, analysis module compares with preset alarm value to data analysis, data is unusual, alarm module alarms, remote communication module carries out remote communication and informs management personnel, the utility model's merit lies in: always keep condenser and cooling tower packing clean, significantly improve heat transfer efficiency, effectively reduce condensing temperature, thereby make refrigerating unit COP promote, comprehensive power consumption can reduce 10 20%, simultaneously operating condition is more stable. The life of equipment is prolonged overall, and the precise water quality control fundamentally reduces the scale formation and corrosion, and the active protection is formed for the key equipment such as condenser copper pipe, cooling tower packing, water pump impeller, and the overhaul cycle and service life of the key equipment are greatly prolonged, and the asset return rate is significantly improved.

Description

Technical Field

[0001] This utility model relates to the field of cooling water system technology, and in particular to a cooling water system with online water quality monitoring. Background Technology

[0002] In industrial and commercial refrigeration and air conditioning systems, cooling water systems are a crucial component for the efficient operation of refrigeration units. Traditional cooling towers, with their internal water collection basins, packing, and condenser heat exchange tube walls constantly in contact with air and moisture, face severe problems of scaling, corrosion, and biological contamination. This significantly hinders heat exchange, leading to increased condensing pressure, a marked decrease in refrigeration efficiency, and a substantial increase in unit energy consumption.

[0003] Even more challenging are the numerous drawbacks of traditional maintenance methods. Regular manual cleaning is not only cumbersome and requires downtime, disrupting production, but also leaves blind spots, offering only a temporary solution. While chemical cleaning can remove some scale, improper acid washing can easily cause irreversible corrosion damage to cooling tower packing, condenser pipes, and system components, potentially shortening the core lifespan of the equipment. Furthermore, daily water quality management relies heavily on manual, periodic sampling and testing, along with the addition of water treatment chemicals. This method is highly unpredictable and lacks precision, failing to address real-time fluctuations in water quality. Chemical additions are often either excessive or insufficient, making it difficult to guarantee effectiveness. Utility Model Content

[0004] The purpose of this invention is to at least solve one of the aforementioned technical defects.

[0005] Therefore, one objective of this utility model is to propose a cooling water system with online water quality monitoring to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.

[0006] To achieve the above objectives, one embodiment of this utility model provides a cooling water system with online water quality monitoring, including a central monitoring and early warning platform comprising a data acquisition module, an analysis module, an alarm module, and a remote communication module. The data acquisition module collects signals, the analysis module analyzes the data and compares it with preset alarm values. When the data is abnormal, the alarm module sounds an alarm, and the remote communication module communicates remotely to notify the management personnel. A precision dosing module includes a multi-parameter water quality sensor, an intelligent controller, a high-precision metering pump, and a storage tank. The multi-parameter water quality sensor monitors key indicators of the circulating water in real time. The intelligent controller has a built-in expert algorithm that compares real-time data with preset ideal concentration thresholds. When the values ​​are abnormal, the high-precision metering pump pumps the measured dosage from the storage tank into the cooling water. A side-flow automatic filtration module includes a diversion circulating water pipe and an automatic backwash brush filter. The diversion circulating water pipe diverts a portion of the circulating water from the main cooling water pipe and directs it to the automatic backwash brush filter. Impurities in the water are filtered out. When the pressure difference reaches a set value or a timed trigger occurs, the system automatically starts the backwashing process, and the impurities are automatically discharged through the drain valve.

[0007] Preferably, as described in any of the above schemes, the central monitoring and early warning platform further includes a display module and a storage module.

[0008] Preferably, in any of the above schemes, the acquisition module includes a temperature sensor, a flow meter, and a multi-parameter water quality sensor.

[0009] Preferably, in any of the above embodiments, the multi-parameter water quality sensor includes a pH sensor, a conductivity sensor, and an ORP sensor.

[0010] Preferably, the alarm module is an audible and visual alarm.

[0011] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows: 1. This cooling water system, equipped with online water quality monitoring, boasts exceptional energy efficiency and operational stability. It maintains the cleanliness of the condenser and cooling tower packing, significantly improving heat exchange efficiency and effectively reducing condensing temperature. This results in an increased COP for the refrigeration unit and a 10%-20% reduction in overall power consumption, while also ensuring more stable operation. The system extends equipment lifespan across the board. Precise water quality control fundamentally reduces scaling and corrosion, providing proactive protection for critical components such as condenser copper tubes, cooling tower packing, and pump impellers. This significantly extends their overhaul cycles and service life, resulting in a substantial increase in return on assets.

[0012] 2. This cooling water system, equipped with online water quality monitoring, frees personnel from tedious and dirty daily cleaning, testing, and chemical dosing work, reducing labor costs, chemical costs, and costly downtime for cleaning. It achieves unmanned operation and lean management. It avoids the large amounts of waste acid discharged from periodic chemical cleaning, reducing water waste and resulting in significant environmental benefits. Simultaneously, the closed-loop dosing process ensures the safety of operators handling chemicals.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a block diagram of the overall structure of this utility model. Detailed Implementation

[0015] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0016] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0017] like Figure 1As shown, this utility model includes a central monitoring and early warning platform, comprising a data acquisition module, an analysis module, an alarm module, and a remote communication module. The data acquisition module collects signals, the analysis module analyzes the data and compares it with preset alarm values. When the data is abnormal, the alarm module sounds an alarm, and the remote communication module communicates remotely to notify the management personnel. The precision dosing module includes a multi-parameter water quality sensor, an intelligent controller, a high-precision metering pump, and a storage tank. The multi-parameter water quality sensor monitors key indicators of the circulating water in real time. The intelligent controller has a built-in expert algorithm that compares the real-time data with preset ideal concentration thresholds. When the values ​​are abnormal, the high-precision metering pump pumps the measured amount of medicine from the storage tank into the cooling water. The side-flow automatic filtration module includes a diversion circulating water pipe and an automatic backwash brush filter. The diversion circulating water pipe diverts a portion of the circulating water from the main cooling water pipe and directs it into the automatic backwash brush filter. Impurities in the water are filtered out. When the pressure difference reaches a set value or a timed trigger occurs, the system automatically starts the backwashing process, and the impurities are automatically discharged through the drain valve.

[0018] The central monitoring and early warning platform serves as the "intelligent brain" of this system. It integrates data acquisition, analysis, and remote communication functions. Its working principle involves centrally collecting signals from various water quality sensors, flow meters, temperature sensors, and equipment operating status points via a data bus, generating historical trend curves. Operators can flexibly set upper and lower limit alarm values ​​for various parameters. Once data anomalies occur, the system immediately issues audible and visual alarms, promptly notifying equipment operation and management personnel.

[0019] The intelligent precision dosing module serves as the "chemical conditioning center" of this system. It comprises a small storage tank, a high-precision metering pump, an intelligent controller, and multi-parameter water quality sensors (such as pH, conductivity, and ORP sensors). Its working principle involves real-time monitoring of key indicators of the circulating water using the water quality sensors. The intelligent controller, equipped with an expert algorithm, compares the real-time data with preset ideal concentration thresholds. When conductivity increases, indicating excessive dissolved solids concentration, the controller triggers a drain valve and simultaneously increases the scale inhibitor dosage. When the pH value deviates from the optimal range, the controller instructs the metering pump to inject a pH adjuster (acidic or alkaline). The system can also precisely add bactericides and algaecides based on ORP (oxidation-reduction potential) values ​​or timed settings.

[0020] The side-flow automatic filtration module serves as the "physical purification center" of this system. Due to the high resistance and cost of traditional full-flow filtration systems, this design employs a highly efficient side-flow filtration principle. Its working principle involves diverting approximately 5%-10% of the circulating water from the main cooling water pipeline and introducing it into a parallel automatic backwashing brush filter (or suction filter). This filter contains a precision filter screen and stainless steel brushes. As water flows through, suspended solids, rust, algae, and other particulate impurities are thoroughly trapped. When the pressure difference reaches a set value or a timer is triggered, the system automatically initiates the backwashing process: a motor drives the brushes to rotate, scraping away dirt from the filter screen, while simultaneously using its own filtered clean water for backwashing. The dirt is automatically discharged through the drain valve.

[0021] This module can continuously purify the water throughout the system with minimal energy consumption and flow rate, effectively removing suspended solids and preventing them from becoming scale nuclei or depositing in low-flow-rate areas. The entire process is automated online and requires no interruption of the main system.

[0022] Example 1: The central monitoring and early warning platform also includes a display module and a storage module. The data acquisition module includes a temperature sensor, a flow meter, and a multi-parameter water quality sensor.

[0023] Specifically: The central monitoring and early warning platform integrates display and storage modules, which can display and store the data collected by the acquisition modules, making the system data easy to access and verifiable.

[0024] Example 2: The multi-parameter water quality sensor includes a pH sensor, a conductivity sensor, and an ORP sensor. The alarm module uses an audible and visual alarm.

[0025] Specifically: pH sensor, conductivity sensor and ORP sensor measure the pH, conductivity and ORP of cooling water respectively, so that the corresponding reagents can be added to adjust when the above values ​​are abnormal.

[0026] The working principle of this utility model is as follows: S1. Multi-parameter water quality sensors monitor key indicators of circulating water in real time. The intelligent controller has built-in expert algorithms to compare real-time data with preset ideal concentration thresholds. When the values ​​are abnormal, the high-precision metering pump will meter the medicine in the storage tank and pump it to the cooling water. S2. The diversion circulating water pipe diverts a portion of the circulating water from the main cooling water pipe and directs it into the automatic backwashing brush filter. Impurities in the water are filtered out. When the pressure difference reaches the set value or is triggered by a timer, the system automatically starts the backwashing process, and the impurities are automatically discharged with the drain valve. S3. The acquisition module acquires signals, the analysis module analyzes the data and compares it with the preset alarm value. When the data is abnormal, the alarm module sounds an alarm, and the remote communication module communicates remotely to notify the management personnel.

[0027] Compared with the prior art, the present invention has the following advantages: 1. This cooling water system, equipped with online water quality monitoring, boasts exceptional energy efficiency and operational stability. It maintains the cleanliness of the condenser and cooling tower packing, significantly improving heat exchange efficiency and effectively reducing condensing temperature. This results in an increased COP for the refrigeration unit and a 10%-20% reduction in overall power consumption, while also ensuring more stable operation. The system extends equipment lifespan across the board. Precise water quality control fundamentally reduces scaling and corrosion, providing proactive protection for critical components such as condenser copper tubes, cooling tower packing, and pump impellers. This significantly extends their overhaul cycles and service life, resulting in a substantial increase in return on assets.

[0028] 2. This cooling water system, equipped with online water quality monitoring, frees personnel from tedious and dirty daily cleaning, testing, and chemical dosing work, reducing labor costs, chemical costs, and costly downtime for cleaning. It achieves unmanned operation and lean management. It avoids the large amounts of waste acid discharged from periodic chemical cleaning, reducing water waste and resulting in significant environmental benefits. Simultaneously, the closed-loop dosing process ensures the safety of operators handling chemicals.

Claims

1. A cooling water system with online water quality monitoring, characterized in that, include: The central monitoring and early warning platform includes a data acquisition module, an analysis module, an alarm module, and a remote communication module. The data acquisition module collects signals, the analysis module analyzes the data and compares it with preset alarm values, and when the data is abnormal, the alarm module sounds an alarm, and the remote communication module communicates remotely to notify the management personnel. The precision dosing module includes a multi-parameter water quality sensor, an intelligent controller, a high-precision metering pump, and a storage tank. The multi-parameter water quality sensor monitors key indicators of the circulating water in real time. The intelligent controller has a built-in expert algorithm that compares the real-time data with the preset ideal concentration threshold. When the value is abnormal, the high-precision metering pump pumps the measured amount of medicine in the storage tank into the cooling water. The side-flow automatic filtration module includes a diversion circulating water pipe and an automatic backwash brush filter. The diversion circulating water pipe diverts a portion of the circulating water from the main cooling water pipe and directs it into the automatic backwash brush filter. Impurities in the water are filtered out. When the pressure difference reaches the set value or is triggered by a timer, the system automatically starts the backwashing process, and the impurities are automatically discharged with the drain valve.

2. A cooling water system with online water quality monitoring as described in claim 1, characterized in that: The central monitoring and early warning platform also includes a display module and a storage module.

3. A cooling water system with online water quality monitoring as described in claim 2, characterized in that: The data acquisition module includes a temperature sensor, a flow meter, and a multi-parameter water quality sensor.

4. A cooling water system with online water quality monitoring as described in claim 3, characterized in that: The multi-parameter water quality sensor includes a pH sensor, a conductivity sensor, and an ORP sensor.

5. A cooling water system with online water quality monitoring as described in claim 1, characterized in that: The alarm module uses an audible and visual alarm.

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