Real-time detection device for salt concentration of a salt pond

Abstract

The utility model provides a kind of real-time detection device for salt water concentration of salt pond, detection tube one end is connected with mass flowmeter, mass flowmeter is communicated with the water outlet of centrifugal pump, centrifugal pump water inlet is communicated with water inlet pipe, water inlet pipe lower end is close to salt pond bottom, water outlet pipe in water inlet pipe side is communicated with another end of detection tube, and the detection module of mass flowmeter is electrically connected with detection computer;Salt pond inside is also provided with pressure sensor and temperature sensor, and pressure sensor and temperature sensor are electrically connected with detection computer.Real-time monitoring function enables operator to find the change of salt water concentration in time, and quickly take adjustment measures, avoid the production interruption or product quality problem caused by abnormal salt water concentration.The automatic detection process reduces the workload of manual sampling and laboratory analysis, and reduces labor cost.

Description

Technical Field

[0001] This utility model relates to the field of chemical equipment, and in particular to a real-time detection device for brine concentration in a brine bath. Background Technology

[0002] In chemical production processes, the concentration of brine prepared in brine baths plays a crucial role in the stability of subsequent production stages and product quality. Current methods for detecting brine concentration primarily rely on manual sampling followed by laboratory analysis, a method with significant drawbacks. Firstly, the limited frequency of manual sampling makes real-time monitoring of brine concentration impossible, hindering timely detection of concentration anomalies and potentially leading to deviations in the production process, impacting product quality and production efficiency. Secondly, manual operation is susceptible to subjective factors; different operators may employ different sampling and analytical methods, compromising the accuracy and reliability of the test results. Therefore, developing a device capable of real-time and accurate detection of brine concentration is of significant practical importance. Utility Model Content

[0003] The main purpose of this invention is to provide a real-time detection device for brine concentration in salt ponds, which can monitor brine concentration in real time and accurately, improve production efficiency, reduce labor costs, and ensure the stability of chemical production processes and product quality.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a real-time detection device for brine concentration in a brine tank, wherein one end of the detection tube is connected to a mass flow meter, the mass flow meter is connected to the outlet of a centrifugal pump, the inlet of the centrifugal pump is connected to an inlet pipe, the lower end of the inlet pipe is close to the bottom of the brine tank, the outlet pipe on one side of the inlet pipe is connected to the other end of the detection tube, and the detection module of the mass flow meter is electrically connected to the detection computer.

[0005] The salt bath is also equipped with pressure and temperature sensors, which are electrically connected to the monitoring computer.

[0006] In the preferred embodiment, the pressure sensor is located at the lower end of the water inlet pipe, and a counterweight plate is also provided at the lower end of the water inlet pipe, with the temperature sensor located on the counterweight plate.

[0007] In the preferred embodiment, the inlet pipe is connected to the centrifugal pump via a flange;

[0008] The outlet pipe and the end of the detection pipe are connected by a flange.

[0009] In the preferred embodiment, a mounting bracket is also provided, on which the mass flow meter and centrifugal pump are mounted, and the detection tube is fixed to the mounting bracket.

[0010] In the preferred embodiment, the mounting bracket is provided with multiple fixing blocks, and the detection tube is fixed on the mounting bracket by the fixing blocks.

[0011] In the preferred embodiment, a control box is installed on the mounting bracket. The control box is electrically connected to the temperature sensor, pressure sensor, centrifugal pump, and mass flow meter, and is also electrically connected to the detection computer.

[0012] The computer collects data to detect the saline concentration.

[0013] In the preferred embodiment, the materials for the detection tube, inlet pipe, and outlet pipe are Hastelloy or perfluoroalkoxy resin.

[0014] This invention provides a real-time detection device for brine concentration in brine ponds. Through the coordinated operation of a mass flow meter, temperature sensor, and pressure sensor, combined with a mathematical model within the controller, it can accurately detect brine concentration in real time, providing reliable data support for chemical production. The real-time monitoring function allows operators to promptly detect changes in brine concentration and take immediate corrective measures, avoiding production interruptions or product quality issues caused by abnormal brine concentrations. The automated detection process reduces the workload of manual sampling and laboratory analysis, lowering labor costs. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0016] Figure 1 This is a front view of the layout structure of the detection device of this utility model;

[0017] Figure 2 This is a side view of the installation structure of the detection device of this utility model;

[0018] Figure 3 This is the overall installation structure diagram of the detection device of this utility model;

[0019] Figure 4 This is an installation structure diagram of the centrifugal pump and mass flow meter of this utility model;

[0020] Figure 5 This is a structural diagram of the installation of the temperature sensor and pressure sensor of this utility model.

[0021] In the diagram: 1. Centrifugal pump; 2. Mass flow meter; 3. Detection computer; 4. Salt bath; 5. Temperature sensor; 6. Pressure sensor; 7. Counterweight plate; 8. Inlet pipe; 9. Outlet pipe; 10. Control box; 11. Mounting bracket; 12. Fixing block; 13. Detection tube. Detailed Implementation

[0022] like Figure 1-5As shown, a real-time detection device for brine concentration in a brine tank is provided. One end of the detection tube 13 is connected to the mass flow meter 2, the mass flow meter 2 is connected to the outlet of the centrifugal pump 1, the inlet of the centrifugal pump 1 is connected to the inlet pipe 8, the lower end of the inlet pipe 8 is close to the bottom of the brine tank 4, the outlet pipe 9 on one side of the inlet pipe 8 is connected to the other end of the detection tube 13, and the detection module of the mass flow meter 2 is electrically connected to the detection computer 3.

[0023] The salt bath 4 is also equipped with a pressure sensor 6 and a temperature sensor 5, which are electrically connected to the detection computer 3.

[0024] After installing this utility model device in the brine tank system of a chlor-alkali chemical plant, first ensure that the inlet of the centrifugal pump 1 is connected to the brine tank 4 through a corrosion-resistant pipe, and the outlet is connected to the inlet of the mass flow meter 2. The outlet of the mass flow meter 2 is then connected back to the return port of the brine tank 4 through another corrosion-resistant pipe. One end of the detection pipe 13 is connected to the mass flow meter 2, and the other end is connected to the inlet pipe 8 through the outlet pipe 9. The lower end of the inlet pipe 8 is close to the bottom of the brine tank 4. The temperature sensor 5 and the pressure sensor 6 are respectively installed in the brine tank 4 near the main brine flow area and are electrically connected to the detection computer 3. The controller 3 is electrically connected to the mass flow meter 2, the temperature sensor 5, and the pressure sensor 6 through wires. During operation, centrifugal pump 1 is started to extract brine from salt bath 4 and deliver it to mass flow meter 2. Mass flow meter 2 measures the mass flow rate of the brine and transmits the data to controller 3. Simultaneously, temperature sensor 5 and pressure sensor 6 monitor the temperature and pressure of the brine in real time and transmit the data to controller 3. Controller 3 calculates the concentration of the brine using a pre-stored mathematical model based on the received mass flow rate, temperature, and pressure data, and displays the result on the screen. When the actual concentration of the brine in salt bath 4 changes due to variations in the amount of salt added or the amount of water entering the system, the device can quickly detect these changes and update the displayed concentration data in a timely manner. If the brine concentration exceeds the preset concentration threshold, such as the set acceptable concentration range of 280-320 g / L, or when the concentration is below 280 g / L or above 320 g / L, controller 3 immediately issues an alarm signal to remind the operator to adjust the amount of salt added or the amount of water entering the system to ensure that the brine concentration is within the appropriate range and to ensure the stable operation of the chlor-alkali production process.

[0025] With its advantages of reasonable structure, high detection accuracy, and fast response speed, the device achieves real-time online monitoring of brine concentration in salt pond 4 by setting up a cyclic detection loop, avoiding the lag problem caused by traditional sampling detection methods. The mass flow meter 2 can accurately measure the mass flow rate of the brine. Combined with the data from the temperature sensor 5 and the pressure sensor 6, the controller 3 can accurately calculate the brine concentration using a mathematical model, improving the accuracy of detection. At the same time, when the brine concentration is abnormal, the controller 3 can automatically alarm, prompting operators to adjust the process parameters in time, which helps maintain the stability of the production system, reduces the intensity of manual inspection, and improves the level of automation control. The overall device operates stably and is easy to maintain. It is suitable for the continuous monitoring needs of brine concentration in salt pond 4 in the chlor-alkali chemical industry and has good application prospects and promotion value.

[0026] In the preferred embodiment, the pressure sensor 6 is located at the lower end of the water inlet pipe 8, and the lower end of the water inlet pipe 8 is also provided with a counterweight plate 7, and the temperature sensor 5 is located on the counterweight plate 7.

[0027] Pressure sensor 6 is installed at the lower end of inlet pipe 8 to measure the pressure inside the inlet pipe. A counterweight plate 7 is also installed at the lower end of inlet pipe 8 to prevent the lower end of inlet pipe 8 from swinging and keep it in a downward position. Temperature sensor 5 is installed on counterweight plate 7 to measure the temperature of brine in the brine tank. The pressure and temperature data collected by pressure sensor 6 and temperature sensor 5 are combined with the mass flow information measured by mass flow meter 2 and analyzed by detection computer 3. The brine concentration is calculated in real time using a preset model, and the concentration change is dynamically monitored.

[0028] This scheme, by placing the pressure sensor 6 at the lower end of the inlet pipe 8, can accurately acquire the brine pressure data at the sampling point, improving measurement reliability; the temperature sensor 5 is placed on the counterweight plate 7, which can more realistically reflect the actual temperature of the brine; at the same time, the setting of the counterweight plate 7 effectively prevents the lower end of the inlet pipe 8 from shifting due to water flow disturbance, ensuring the stability of the sampling position and improving detection accuracy; the overall structure is simple and practical, realizing stable acquisition of key parameters of brine concentration, which is conducive to improving the response speed and measurement accuracy of the detection device.

[0029] In the preferred embodiment, the inlet pipe 8 is connected to the centrifugal pump 1 via a flange;

[0030] The outlet pipe 9 and the detection pipe 13 are connected at their ends by flanges. The inlet pipe 8 and the centrifugal pump 1 are connected by flanges to ensure a firm and airtight connection. The outlet pipe 9 and the detection pipe 13 are also connected by flanges to ensure the stability and airtightness of the water flow channel. When the centrifugal pump 1 is working, brine is transported from the salt bath 4 to the mass flow meter 2 through the inlet pipe 8, and then flows back to the salt bath 4 through the outlet pipe 9 into the detection pipe 13. The flanges at each connection point facilitate disassembly and installation, which is beneficial for daily maintenance and replacement.

[0031] In the preferred embodiment, a mounting bracket 11 is also provided, on which the mass flow meter 2 and the centrifugal pump 1 are mounted, and the detection tube 13 is fixed on the mounting bracket 11.

[0032] The mounting bracket 11 is provided with multiple fixing blocks 12, and the detection tube 13 is fixed on the mounting bracket 11 through the fixing blocks 12.

[0033] Mass flow meter 2 and centrifugal pump 1 are mounted on mounting frame 11, and detection tube 13 is also fixed on mounting frame 11 by fixing blocks 12; multiple fixing blocks 12 are distributed in appropriate positions on mounting frame 11 to stabilize detection tube 13 and prevent it from shifting or vibrating during operation; the entire device is installed and positioned as a whole through mounting frame 11, which facilitates on-site layout and fixation of the equipment.

[0034] This design, by setting up the mounting bracket 11, integrates the mass flow meter 2, centrifugal pump 1, and detection tube 13 into a compact and stable unit, improving the reliability of equipment operation. The fixing block 12 securely fixes the detection tube 13, effectively preventing pipe displacement or loosening caused by vibration or water flow impact, thus enhancing the safety and durability of the system. At the same time, the design of the mounting bracket 11 facilitates on-site installation and commissioning, enhancing the applicability and maintainability of the device.

[0035] In the preferred embodiment, the mounting bracket 11 is equipped with a control box 10, which is electrically connected to the temperature sensor 5, the pressure sensor 6, the centrifugal pump 1 and the mass flow meter 2, and is also electrically connected to the detection computer 3.

[0036] Computer 3 collects data to detect saline concentration.

[0037] In use, the control box 10 is installed on the mounting bracket 11 and electrically connected to the temperature sensor 5, pressure sensor 6, centrifugal pump 1, and mass flow meter 2 to collect the working data of each component. The control box 10 is also electrically connected to the detection computer 3 to transmit the collected temperature, pressure, and mass flow information to the detection computer 3. The detection computer 3 calculates the concentration of brine in the brine tank in real time based on the received data and a preset mathematical model, and dynamically monitors the concentration changes. The operator can view the current brine concentration value through the detection computer 3, and the control system will issue an alarm signal when the concentration is abnormal to remind the adjustment of process parameters.

[0038] This solution, by setting up a control box 10 on the mounting frame 11, realizes centralized control and data integration of temperature sensor 5, pressure sensor 6, centrifugal pump 1, and mass flow meter 2, thereby improving the automation level of the system. The control box 10 is electrically connected to the detection computer 3, which facilitates data transmission and centralized processing, improving the accuracy and response speed of brine concentration detection. The overall structure is reasonably laid out, which is convenient for on-site operation and maintenance, and is conducive to achieving efficient and stable monitoring of brine concentration in the chlor-alkali chemical production process.

[0039] In the preferred embodiment, the materials of the detection tube 13, the inlet tube 8, and the outlet tube 9 are Hastelloy or perfluoroalkoxy resin.

[0040] The detection pipe 13, inlet pipe 8, and outlet pipe 9 are made of corrosion-resistant materials, such as Hastelloy or perfluoroalkoxy resin. Based on the corrosive characteristics of the brine in the brine pool system, the above-mentioned pipe components are manufactured and installed using appropriate materials to adapt to high-concentration brine and possible acidic or alkaline environments, ensuring the stability and durability of the device during long-term operation.

[0041] This solution significantly improves the corrosion resistance of the pipeline system by using Hastelloy or perfluoroalkoxy resin as the materials for the detection pipe 13, inlet pipe 8, and outlet pipe 9. Hastelloy has excellent acid and alkali resistance and high temperature resistance, making it suitable for harsh working conditions. Perfluoroalkoxy resin has good chemical inertness and low adsorption, effectively preventing salt water from corroding and contaminating the pipeline. Using these materials can extend the service life of the equipment, reduce the frequency of maintenance, and ensure the long-term stable operation of the detection device, making it suitable for real-time detection of salt water concentration in highly corrosive environments such as chlor-alkali chemical plants.

[0042] Example 2

[0043] The device of this invention is installed in the brine treatment system of a chlor-alkali chemical plant. The inlet of centrifugal pump 1 is connected to brine treatment tank 4 via a corrosion-resistant pipe, and its outlet is connected to the inlet of mass flow meter 2. The outlet of mass flow meter 2 is connected to the return port of brine treatment tank 4 via another corrosion-resistant pipe. Controller 3 is electrically connected to mass flow meter 2, temperature sensor 5, and pressure sensor 6 via wires. Temperature sensor 5 and pressure sensor 6 are respectively installed in brine treatment tank 4 near the main brine flow area.

[0044] During operation, centrifugal pump 1 extracts brine from brine tank 4 and delivers it to mass flow meter 2. Mass flow meter 2 measures the mass flow rate of the brine and transmits the data to controller 3. Temperature sensor 5 and pressure sensor 6 monitor the temperature and pressure of the brine in real time and transmit the data to controller 3. Controller 3 calculates the brine concentration using a pre-stored mathematical model based on the received mass flow rate, temperature, and pressure data, and displays the result on the screen. For example, when the actual concentration of the brine in brine tank 4 changes due to variations in the amount of salt added or the amount of water flowing into the tank, the device can quickly detect these changes and update the displayed concentration data accordingly. If the brine concentration exceeds a preset concentration threshold (e.g., the set acceptable concentration range is 280-320 g / L; when the concentration is below 280 g / L or above 320 g / L), controller 3 immediately issues an alarm signal, reminding the operator to adjust the amount of salt added or the amount of water flowing into the tank to ensure the brine concentration is within a suitable range and to ensure the stable operation of the chlor-alkali production process.

[0045] Example 3

[0046] In a fine chemical production workshop's brine tank scenario, the workshop has higher requirements for the precision of brine concentration. The device of this invention, when installed, utilizes higher-grade corrosion-resistant materials such as Hastelloy and perfluoroalkoxy resins for the centrifugal pump 1, mass flow meter 2, temperature sensor 5, pressure sensor 6, and related pipelines. The controller 3 employs a faster processing speed and larger storage capacity to meet the needs of high-precision data processing and complex mathematical model calculations. During actual operation, the device can accurately detect minute changes in brine concentration; for example, when the brine concentration fluctuates around 300 g / L, the device can display and monitor it with accuracy to two decimal places. If abnormal fluctuations occur in the concentration, such as a short-term drop of 0.5 g / L, the controller 3 will quickly issue an alarm. Operators can then promptly check the operation of the brine tank 4 based on the alarm prompts, such as the salt dissolution status and the normal operation of the water replenishment system, ensuring that the production process is not affected and guaranteeing the quality stability of fine chemical products.

[0047] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A real-time detection device for brine concentration in a brine bath, characterized in that: One end of the detection tube (13) is connected to the mass flow meter (2), the mass flow meter (2) is connected to the outlet of the centrifugal pump (1), the inlet of the centrifugal pump (1) is connected to the inlet pipe (8), the lower end of the inlet pipe (8) is close to the bottom of the salt bath (4), the outlet pipe (9) on one side of the inlet pipe (8) is connected to the other end of the detection tube (13), and the detection module of the mass flow meter (2) is electrically connected to the detection computer (3). The salt bath (4) is also equipped with a pressure sensor (6) and a temperature sensor (5), which are electrically connected to the detection computer (3).

2. The real-time detection device for brine concentration in a brine tank according to claim 1, characterized in that: The pressure sensor (6) is located at the lower end of the water inlet pipe (8), and the lower end of the water inlet pipe (8) is also equipped with a counterweight plate (7). The temperature sensor (5) is located on the counterweight plate (7).

3. The real-time detection device for brine concentration in a brine tank according to claim 1, characterized in that: The inlet pipe (8) is connected to the centrifugal pump (1) via a flange; The outlet pipe (9) and the detection pipe (13) are connected by a flange.

4. The real-time detection device for brine concentration in a brine tank according to claim 1, characterized in that: It is also equipped with a mounting bracket (11), on which a mass flow meter (2) and a centrifugal pump (1) are mounted, and a detection tube (13) is fixed on the mounting bracket (11).

5. The real-time detection device for brine concentration in a brine tank according to claim 1, characterized in that: The mounting bracket (11) is provided with multiple fixing blocks (12), and the detection tube (13) is fixed on the mounting bracket (11) through the fixing blocks (12).

6. The real-time detection device for brine concentration in a brine tank according to claim 1, characterized in that: The mounting bracket (11) is equipped with a control box (10), which is electrically connected to the temperature sensor (5), pressure sensor (6), centrifugal pump (1) and mass flow meter (2), and is electrically connected to the detection computer (3). The computer (3) collects data to detect the saline concentration.

7. The real-time detection device for brine concentration in a brine bath according to claim 1, characterized in that: The materials of the detection tube (13), the inlet pipe (8) and the outlet pipe (9) are Hastelloy or perfluoroalkoxy resin.

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