Device and method for full-automatic detection of water quality in power plant laboratory

Abstract

The invention relates to the technical field of laboratory water quality automatic detection, and discloses a device and method for power plant laboratory water quality full-automatic detection, and the device comprises a host control subsystem, a sample injection subsystem, a colorimetric analysis module subsystem, an electrode analysis module subsystem and an auxiliary subsystem; the host control subsystem comprises a main control board module, a touch liquid crystal display module, a data interface and a storage module, and is used for task scheduling and distribution and data storage; the sample injection subsystem comprises a sample injection control module, a sample injection module and a channel switching module; the colorimetric analysis module subsystem is used for index detection based on water wet chemical analysis and comprises a colorimetric analysis control module, a first flow path module and a colorimetric analysis module; the electrode type analysis module subsystem is used for index detection based on water electrochemical method analysis and comprises an electrode type analysis control module, a second flow path module, an electrode type analysis module and a signal conversion module; and the auxiliary subsystem comprises a bus type communication line and a sample pipeline.

Description

Technical Field

[0001] The present invention relates to the technical field of automatic detection of laboratory water quality, and in particular to a device and method for fully automatic detection of water quality in a power plant laboratory. Background Art

[0002] With the development of my country's economy, the power industry has achieved a rapid development speed, and the requirements of generator sets for water vapor quality are getting higher and higher. The quality of water vapor is the key factor to ensure that the water and steam circulation pipelines of generator sets are free of impurities. In order to closely monitor the water vapor quality of generator sets, protect the turbines, boilers and pipelines from sediment scaling or corrosion, it is necessary to regularly take manual samples and conduct manual laboratory tests and analyses, compare the laboratory test data with the online data, and control the various indicators of the water vapor system within the required range to prevent salt accumulation, corrosion and scaling in the boiler system of the generator set, ensure the safe and economical operation of the boiler equipment, and achieve the purpose of extending the maintenance cycle and service life of the generator set.

[0003] At present, most power plant laboratories often need to manually use chemical colorimetry, electrochemical method, titration method and other means to detect the content of silicate, phosphate, hydrazine, conductivity, pH, sodium ion and other contents in boiler water vapor samples. Currently, there are many samples to be tested, many test indicators for each sample, and high frequency of testing. The entire testing process is time-consuming, laborious and labor-intensive. At the same time, the frequent contact of laboratory personnel with various chemical reagents during the testing process will also bring certain safety problems to varying degrees.

[0004] Therefore, there is a technical demand for designing a device and method for fully automatic detection of water quality in power plant laboratories, which can be used in power plant laboratories to perform fully automatic detection of silicate, phosphate, hydrazine, pH, conductivity, and sodium ions; the device and method have a high degree of automation, wide applicability, and do not require the participation of laboratory personnel in the entire detection process. Summary of the invention

[0005] The purpose of the present invention is to provide a device and method for fully automatic detection of water quality in power plant laboratories, to provide a technical method and solution for instruments and equipment related to automatic detection of water quality in power plant laboratories, so as to improve the automation and detection efficiency of water quality detection in power plant laboratories.

[0006] The first aspect of the present invention is to provide a device for fully automatic detection of water quality in a power plant laboratory, comprising: Host control subsystem (1), sample inlet subsystem, colorimetric analysis module subsystem, electrode analysis module subsystem, auxiliary subsystem; The host control subsystem is used for system task scheduling and allocation and data storage of the device for fully automatic water quality detection in power plant laboratories; the host control subsystem includes a main control board module, a touch liquid crystal display module, a data interface and a storage module; The injection subsystem is used for switching between different samples and switching between different samples and pure water and for sample supply; the injection subsystem comprises an injection control module, an injection module (8) and a channel switching module; The colorimetric analysis module subsystem is used for detecting water quality indicators based on wet chemical analysis of water in power plant industrial processes; the colorimetric analysis module subsystem includes a colorimetric analysis control module, a first flow path module and a colorimetric analysis module; the colorimetric analysis module has a plurality of colorimetric analysis modules; The electrode analysis module subsystem is used for detecting water quality indicators of industrial process water in power plants by electrochemical analysis; the electrode analysis module subsystem includes an electrode analysis control module, a second flow path module, an electrode analysis module and a signal conversion module; The auxiliary subsystem realizes the discharge of analytical waste liquid and cleaning waste liquid, the control of the overall process operation and external communication; the auxiliary subsystem includes a bus-type communication line (2) and a bus-type sample pipeline (3); wherein the host control subsystem (1) is connected to the inlet subsystem, the colorimetric analysis module subsystem, the electrode analysis module subsystem and the auxiliary subsystem through the bus-type communication line (2) to realize the external communication and the control of the overall process operation; the host control subsystem (1) is connected to the inlet subsystem, the colorimetric analysis module subsystem, the electrode analysis module subsystem and the auxiliary subsystem pipeline through the bus-type sample pipeline (3) to realize the discharge of analytical waste liquid and cleaning waste liquid.

[0007] Preferably, the main control board module includes a first processor and a main control board peripheral circuit, and the system task scheduling and allocation of the device for fully automatic water quality detection in the power plant laboratory is realized by the processor; The touch-controlled liquid crystal display module includes a liquid crystal touch and a touch-controlled liquid crystal display peripheral circuit; The data interface includes one or more of an RS232 interface, an RS485 interface, a USB interface, a WiFi interface, and a Bluetooth interface; communication and information exchange are achieved with the inlet subsystem, the colorimetric analysis module subsystem, and the electrode analysis module subsystem through the data interface, wherein the USB interface is used to export the operating parameters, operating records, and detection history data of the host control subsystem, the inlet subsystem, the colorimetric analysis module subsystem, the electrode analysis module subsystem, and the auxiliary subsystem; The storage module is used to store the operating parameters, operating records and detection history data of the host control subsystem, the inlet subsystem, the colorimetric analysis module subsystem, the electrode analysis module subsystem and the auxiliary subsystem.

[0008] Preferably, the injection control module includes a second processor and a control peripheral circuit, which are used to implement the injection control logic of the injection subsystem and to communicate and exchange information with the host; The channel switching module includes an execution component and a sample pipeline. The execution component is connected to the sample pipeline, and realizes the switching of different samples and the switching and sample supply between different samples and pure water based on the control instructions of the injection control module.

[0009] Preferably, the actuator is a robot arm or a multi-channel switching valve with three degrees of freedom of X, Y, and Z; the multi-channel switching valve can adopt a highly integrated PSA multi-channel rotary control valve, which is composed of a valve body, a rotary valve core, a driving device, a sensor, and an injection controller. Among them, the valve body is used to install the rotary valve core and the driving device, the sensor is used to detect the position and speed of the valve core, and the sensor is used to receive the signal of the injection controller and control the driving device, thereby driving the valve core to rotate; the specific working principle is as follows: when the device receives the control signal of the injection controller, the injection controller module determines the position and speed of the rotary valve core based on the preset algorithm, and outputs the corresponding control signal to the driving device. The driving device generates a corresponding driving torque according to the control signal, thereby driving the rotary valve core to rotate. At the same time, the sensor monitors the position and speed of the valve core in real time and feeds back the signal to the controller. The controller adjusts the driving torque according to the feedback signal to achieve precise control.

[0010] Preferably, the colorimetric analysis module subsystem includes: a control module, a flow path module, and a colorimetric analysis module; wherein: The colorimetric analysis control module includes a third processor and a colorimetric analysis peripheral circuit for realizing sample, standard solution or pure water extraction, subsystem pump and valve timing logic control, calibration data storage, detection data storage, and communication and data transmission with the host; The first flow path module comprises a first pump valve unit, a first pipeline unit, a first sample unit, a first pure water unit, a first reagent unit and a first standard solution unit required for wet water quality analysis; wherein the first pump valve unit and the pipeline unit are used to realize the transfer and addition of samples, pure water, reagents and standard solutions; the first sample unit, the first pure water unit, the first reagent unit and the first standard solution unit are used to store samples, pure water, reagents and standard solutions respectively; The colorimetric analysis module includes a light source unit, a receiving unit, a colorimetric cell unit and a photoelectric signal conversion unit to realize sample concentration detection; and performs colorimetric analysis based on photoelectric colorimetry.

[0011] Preferably, the electrode analysis control module includes a fourth processor and an electrode analysis peripheral circuit, which is used to realize sample, standard solution or pure water extraction, subsystem pump valve timing logic control, calibration data storage, detection data storage, and communication and data transmission with the host; The second flow path module includes a second pump valve unit, a second pipeline unit, a second sample unit, a second pure water unit, a second reagent unit and a second standard solution unit required for electrochemical water quality analysis; wherein the second pump valve unit and the pipeline unit are used to realize the transfer and addition of samples, pure water, reagents and standard solutions; the second sample unit, the second pure water unit, the second reagent unit and the second standard solution unit are used to store samples, pure water, reagents and standard solutions respectively; The electrode analysis module comprises a sodium ion detection module (4) and a conductivity and pH detection module (5); The signal conversion module is used to convert the electrode electrical signal into sample corresponding concentration data; the electrode electrical signal includes the sodium ion concentration signal and the electrical conductivity and pH electrical signal detected by the sodium ion detection module (4) and the electrical conductivity and pH detection module (5).

[0012] Preferably, the auxiliary subsystem includes liquid flow paths, valves and cables for discharging analytical waste liquid and cleaning waste liquid, as well as controlling the overall process operation and external communication.

[0013] The second aspect of the present invention is to provide a method for fully automatic detection of water quality in a power plant laboratory, comprising: S1, multiple water quality test samples and pure water are respectively connected to each channel of the sampling module (8); S2, the host control subsystem (1) sends a start-of-work instruction to the sodium ion detection module (4), the conductivity and pH detection module (5), the plurality of colorimetric analysis modules and the sampling module (8) via the bus communication line (2); S3, based on the sampling module (8) switching the sampling channel to pure water and the bus-type sample pipeline (3) extracting corresponding pure water, the sodium ion detection module (4), the conductivity and pH detection module (5) and the first flow path module and the second flow path module of the plurality of colorimetric analysis modules are cleaned; S4, draining the cleaning liquid after cleaning, and uploading the working status of the sodium ion detection module (4), the conductivity and pH detection module (5) and the colorimetric analysis module to the host control subsystem (1); S5, based on the sampling module (8), the sampling channel is switched to the first sample, and the sodium ion detection module (4), the conductivity and pH detection module (5) and the colorimetric analysis module extract samples through the bus sample pipeline (3) and start analysis and detection of corresponding water quality indicators; S6, respectively discharging the analysis waste liquid generated after the analysis and detection of the sodium ion detection module (4), the conductivity and pH detection module (5) and the colorimetric analysis module, and uploading the various detection data and working status corresponding to the first sample to the host control subsystem (1) via the bus communication line (2); S7, repeating steps S5-S6 for each water quality test sample to obtain concentration detection data and working status of all water quality test samples.

[0014] The third aspect of the present invention provides an electronic device, including a processor, a memory, a display, and a communication module, wherein the memory stores historical data of detection indicators of each subsystem as well as operating status and task logic instructions, the processor is used to read and process the instructions, the display displays the process of the method described in the second aspect, and the communication module communicates with the equipment and instruments of each subsystem to realize task scheduling for uploading detection data and working status.

[0015] A fourth aspect of the present invention provides a computer-readable storage medium, wherein the computer-readable storage medium stores a plurality of task logic instructions, and the plurality of task logic instructions can be read by a processor and executed by the method described in the second aspect.

[0016] The device and method for fully automatic detection of water quality in a power plant laboratory of the present invention have the following beneficial effects: The integrated laboratory fully automatic water quality analysis and detection device has a wider applicability and a higher degree of automation. It can be used for the fully automated laboratory detection of various factors such as silicate, phosphate, hydrazine, pH, conductivity, sodium ions, etc. in water vapor samples in power plant laboratories. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the related technologies, the drawings required for use in the specific embodiments or the related technical descriptions will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of the structure of a device for fully automatic water quality detection in a power plant laboratory provided according to an embodiment of the present invention; Figure 2A flow chart of a fully automatic water quality detection method for a power plant laboratory provided according to an embodiment of the present invention; Figure 3 The present invention is a schematic structural diagram of an electronic device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0019] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Embodiment 1

[0022] See also Figure 1 This embodiment provides a device for fully automatic detection of water quality in a power plant laboratory, comprising: Host control subsystem 1, inlet subsystem, colorimetric analysis module subsystem, electrode analysis module subsystem, and auxiliary subsystem; wherein the host control subsystem 1 is connected to the inlet subsystem, colorimetric analysis module subsystem, electrode analysis module subsystem, and auxiliary subsystem via a bus communication line 2; the host control subsystem 1 is connected to the inlet subsystem, colorimetric analysis module subsystem, electrode analysis module subsystem, and auxiliary subsystem via a bus sample pipeline 3; The host control subsystem is used for system task scheduling and allocation and data storage of the device for fully automatic water quality detection in power plant laboratories; the host control subsystem includes a main control board module, a touch liquid crystal display module, a data interface and a storage module; The injection subsystem is used for switching between different samples and switching and supplying samples between different samples and pure water; the injection subsystem includes an injection control module, an injection module 8 and a channel switching module; The colorimetric analysis module subsystem is used for detecting water quality indicators based on wet chemical analysis of water in power plant industrial processes; the colorimetric analysis module subsystem includes a colorimetric analysis control module, a first flow path module and a colorimetric analysis module; In this embodiment, the colorimetric analysis module has multiple colorimetric analysis modules; Figure 1 Shown are the colorimetric analysis module n6 and the colorimetric analysis module 17, and the others are omitted and not shown.

[0023] The electrode analysis module subsystem is used for detecting water quality indicators of industrial process water in power plants by electrochemical analysis; the electrode analysis module subsystem includes an electrode analysis control module, a second flow path module, an electrode analysis module and a signal conversion module; The auxiliary subsystem realizes the analysis of waste liquid, the discharge of cleaning waste liquid and the control of the overall process operation as well as external communication.

[0024] As a preferred embodiment, the main control board module includes a first processor and a main control board peripheral circuit, and the system task scheduling and allocation of the device for fully automatic water quality detection in the power plant laboratory is realized by the processor; The touch-controlled liquid crystal display module includes a liquid crystal touch and a touch-controlled liquid crystal display peripheral circuit; The data interface includes one or more of an RS232 interface, an RS485 interface, a USB interface, a WiFi interface, and a Bluetooth interface; communication and information exchange are achieved with the inlet subsystem, the colorimetric analysis module subsystem, and the electrode analysis module subsystem through the data interface, wherein the USB interface is used to export the operating parameters, operating records, and detection history data of the host control subsystem, the inlet subsystem, the colorimetric analysis module subsystem, the electrode analysis module subsystem, and the auxiliary subsystem; The storage module is used to store the operating parameters, operating records and detection history data of the host control subsystem, the inlet subsystem, the colorimetric analysis module subsystem, the electrode analysis module subsystem and the auxiliary subsystem.

[0025] As a preferred embodiment, the injection control module includes a second processor and a control peripheral circuit, which are used to implement the injection control logic of the injection subsystem and to communicate and exchange information with the host; The channel switching module includes an execution component and a sample pipeline. The execution component is connected to the sample pipeline, and realizes the switching of different samples and the switching and sample supply between different samples and pure water based on the control instructions of the injection control module.

[0026] As a preferred embodiment, the actuator is a robotic arm with three degrees of freedom (X, Y, and Z) or a multi-channel switching valve.

[0027] Among them: the multi-channel switching valve used in this embodiment can adopt a highly integrated PSA multi-channel rotary control valve, which is composed of a valve body, a rotary valve core, a driving device, a sensor and an injection controller. Among them, the valve body is used to install the rotary valve core and the driving device, the sensor is used to detect the position and speed of the valve core, and the sensor is used to receive the signal of the injection controller and control the driving device, thereby driving the valve core to rotate.

[0028] The specific working principle is as follows: When the device receives the control signal from the injection controller, the injection controller module determines the position and speed of the rotating valve core based on the preset algorithm and outputs the corresponding control signal to the drive device. The drive device generates the corresponding driving torque according to the control signal, and then drives the rotating valve core to rotate. At the same time, the sensor monitors the position and speed of the valve core in real time and feeds the signal back to the controller. The controller adjusts the driving torque according to the feedback signal to achieve precise control.

[0029] As a preferred embodiment, the colorimetric analysis module subsystem includes: a control module, a flow module, and a colorimetric analysis module; wherein: The colorimetric analysis control module includes a third processor and a colorimetric analysis peripheral circuit for realizing sample, standard solution or pure water extraction, subsystem pump and valve timing logic control, calibration data storage, detection data storage, and communication and data transmission with the host; The first flow path module comprises a first pump valve unit, a first pipeline unit, a first sample unit, a first pure water unit, a first reagent unit and a first standard solution unit required for wet water quality analysis; wherein the first pump valve unit and the pipeline unit are used to realize the transfer and addition of samples, pure water, reagents and standard solutions; the first sample unit, the first pure water unit, the first reagent unit and the first standard solution unit are used to store samples, pure water, reagents and standard solutions respectively; The colorimetric analysis module includes a light source unit, a receiving unit, a colorimetric cell unit and a photoelectric signal conversion unit to realize sample concentration detection; its working principle is: colorimetric analysis is an analysis method based on the selective absorption of light by the solution, and is also called absorptiometry. The color of the solution of a colored substance is related to its concentration. The greater the concentration of the solution, the darker the color. The concentration of the solution can be determined by optically comparing the depth of the color of the solution. According to the different wavelength ranges of the absorbed light and the precision of the instruments used, it can be divided into photoelectric colorimetry and spectrophotometry. The practical method of this embodiment is photoelectric colorimetry. Ions of different valence states of elements have specific colors of the element ions. For example, divalent copper ions are blue, while monovalent copper ions are colorless; trivalent chromium ions are green, while hexavalent chromium ions are brown. In addition to their own specific colors, the depth of this color also has a strict linear relationship with the concentration of the ions. As long as there are no other interfering factors, the proportional relationship between the color of the ions and the concentration in the solution can be used to compare and analyze the ion concentration in the solution. This method of analyzing the ion concentration in the solution by ion color is called colorimetric analysis.

[0030] The process of colorimetric analysis in this embodiment is as follows: After a beam of parallel monochromatic light with only one wavelength emitted by the light source unit is injected into the colored solution of the sample water to be tested, part of the light is absorbed, and part of it is transmitted through the solution. The transmitted part is received by the receiving unit, and the color is compared by the colorimetric cell. The absorbance of a series of standard solutions is measured by means of the photoelectric signal conversion unit, and a working curve is drawn. Then, according to the absorbance of the tested solution, its concentration or content is obtained from the working curve, and then the ion concentration in the tested sample water is determined according to the color comparison result and the working curve. The determination method is: the sample water whose content needs to be determined is prepared into a standard solution of standard concentration in advance. Then, it is diluted with distilled water in different equal parts into standard solutions of different concentrations such as 80%, 70%, 60%, 50%, etc. Put it into a clean test tube for use. When it is necessary to analyze the concentration of the working solution to be tested, just take the same test tube, put the tested solution into the test tube, and compare the color with the standard solution test tube of known concentration. You can always find a standard that is the same or close to it to determine the ion concentration in the tested sample water.

[0031] As a preferred embodiment, the electrode analysis control module includes a fourth processor and an electrode analysis peripheral circuit for realizing sample, standard solution or pure water extraction, subsystem pump valve timing logic control, calibration data storage, detection data storage, and communication and data transmission with a host; The second flow path module includes a second pump valve unit, a second pipeline unit, a second sample unit, a second pure water unit, a second reagent unit and a second standard solution unit required for electrochemical water quality analysis; wherein the second pump valve unit and the pipeline unit are used to realize the transfer and addition of samples, pure water, reagents and standard solutions; the second sample unit, the second pure water unit, the second reagent unit and the second standard solution unit are used to store samples, pure water, reagents and standard solutions respectively; The electrode analysis module includes a sodium ion detection module 4 and a conductivity and pH detection module 5; The signal conversion module is used to convert the electrode electrical signal into sample corresponding concentration data; the electrode electrical signal includes the sodium ion concentration signal and the conductivity and pH electrical signal obtained by the sodium ion detection module 4 and the conductivity and pH detection module 5.

[0032] As a preferred embodiment, the auxiliary subsystem includes liquid flow paths, valves and cables for discharging analytical waste liquid and cleaning waste liquid, as well as controlling the overall process operation and external communication. Embodiment 2

[0033] See also Figure 2 This embodiment provides a method for fully automatic detection of water quality in a power plant laboratory, which is implemented based on the device of the first embodiment and includes: S1, multiple water quality test samples and pure water are respectively connected to each channel of the sampling module 8; In this embodiment, each channel of the sample injection module 8 is connected with sample 1 ... sample n and pure water respectively; S2, the host control subsystem 1 sends a start-of-work instruction to the sodium ion detection module 4, the conductivity and pH detection module 5, the plurality of colorimetric analysis modules and the injection module 8 through the bus communication line 2; In this embodiment, the host control subsystem 1 sends a start-of-work instruction to the sodium ion detection module 4, the conductivity and pH detection module 5, the colorimetric analysis module and the sampling module 8 through the bus communication line 2; S3, based on the sampling module 8 switching the sampling channel to pure water and the bus sample pipeline 3 extracting corresponding pure water, the sodium ion detection module 4, the conductivity and pH detection module 5 and the first flow path module and the second flow path module of the plurality of colorimetric analysis modules are cleaned; In this embodiment, the sampling module 8 switches the sampling channel to pure water, and the sodium ion detection module 4, the conductivity and pH detection module 5, and the colorimetric analysis module respectively extract pure water through the bus sample pipeline 3, and each module starts to clean the internal flow path of the module; S4, draining the cleaning liquid after cleaning, and uploading the working status of the sodium ion detection module 4, the conductivity and pH detection module 5 and the colorimetric analysis module to the host control subsystem 1; In this embodiment, after cleaning of each module, the cleaning liquid is discharged separately, and at the same time, the working status of each module is uploaded to the host control subsystem 1 through the bus communication line 2; S5, based on the sampling module 8 switching the sampling channel to the first sample, the sodium ion detection module 4, the conductivity and pH detection module 5 and the colorimetric analysis module extract samples through the bus sample pipeline 3 and start analysis and detection of corresponding water quality indicators; In this embodiment, the sampling module 8 switches the sampling channel to sample 1, and the sodium ion detection module 4, the conductivity and pH detection module 5, the colorimetric analysis module n6, and the colorimetric analysis module 17 respectively extract sample 1 through the bus sample pipeline 3, and each module starts the analysis and detection of the corresponding water quality index; S6, respectively discharging the analysis waste liquid generated after the analysis and detection of the sodium ion detection module 4, the conductivity and pH detection module 5 and the colorimetric analysis module, and uploading the various detection data and working status corresponding to the first sample to the host control subsystem 1 through the bus communication line 2; S7, repeating steps S5-S6 for each water quality test sample to obtain concentration detection data and working status of all water quality test samples.

[0034] In this embodiment, the sampling module 8 switches the sampling channel to sample n, the sodium ion detection module 4, the conductivity and pH detection module 5, the colorimetric analysis module n6, and the colorimetric analysis module 17 respectively extract sample n through the bus sample pipeline 3, and each module starts the analysis and detection of the corresponding water quality indicators; after the analysis and detection of each module is completed, the analysis waste liquid is discharged separately, and at the same time, the various detection data and working status corresponding to the sample n are uploaded to the host 1 through the bus communication line 2. Embodiment 3

[0035] An electronic device is provided, comprising a processor, a memory, a display, and a communication module, wherein the memory stores historical data of detection indicators of each subsystem as well as operating status and task logic instructions, the processor is used to read and process the instructions, the display displays the process of the method described in Example 2, and the communication module communicates with the equipment and instruments of each subsystem to realize concentration data and device status upload task scheduling. Embodiment 4

[0036] like Figure 3As shown, the present invention also provides an electronic device, including a processor 302 and a memory 301, a display 303, and a communication module 304 connected to the processor 302, wherein the memory 301 stores historical data of detection indicators of each subsystem as well as operating status and task logic instructions, and the instructions can be loaded by the processor, and the display 303 displays and interacts with the process method of Example 2 or Example 3, and the communication module 304 realizes communication with each subsystem equipment and instrument, and realizes uploading of concentration data and device status and scheduling of various tasks.

[0037] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above embodiments can be implemented by software, or by means of software plus necessary general hardware platforms. Based on such understanding, the technical solutions of the above embodiments can be embodied in the form of software products, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.), including several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in the various embodiments of the present invention.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for fully automatic detection of water quality in a power plant laboratory, characterized in that: include: Host control subsystem (1), inlet sample system, colorimetric analysis module subsystem, electrode analysis module subsystem and auxiliary subsystem; The host control subsystem is used for system task scheduling and allocation and data storage of the device for fully automatic water quality detection in power plant laboratories; the host control subsystem includes a main control board module, a touch liquid crystal display module, a data interface and a storage module; The injection subsystem is used for switching between different samples and switching between different samples and pure water and for sample supply; the injection subsystem comprises an injection control module, an injection module (8) and a channel switching module; The colorimetric analysis module subsystem is used for detecting water quality indicators based on wet chemical analysis of water in power plant industrial processes; the colorimetric analysis module subsystem includes a colorimetric analysis control module, a first flow path module and a colorimetric analysis module; the colorimetric analysis module has a plurality of colorimetric analysis modules; The electrode analysis module subsystem is used for detecting water quality indicators of industrial process water in power plants by electrochemical analysis; the electrode analysis module subsystem includes an electrode analysis control module, a second flow path module, an electrode analysis module and a signal conversion module; The auxiliary subsystem realizes the discharge of analytical waste liquid and cleaning waste liquid, the control of the overall process operation and external communication; the auxiliary subsystem includes a bus-type communication line (2) and a bus-type sample pipeline (3); wherein the host control subsystem (1) is connected to the inlet subsystem, the colorimetric analysis module subsystem, the electrode analysis module subsystem and the auxiliary subsystem through the bus-type communication line (2) to realize the external communication and the control of the overall process operation; the host control subsystem (1) is connected to the inlet subsystem, the colorimetric analysis module subsystem, the electrode analysis module subsystem and the auxiliary subsystem pipeline through the bus-type sample pipeline (3) to realize the discharge of analytical waste liquid and cleaning waste liquid.

2. A device for fully automatic water quality detection in a power plant laboratory according to claim 1, characterized in that: The main control board module includes a first processor and a main control board peripheral circuit, and the system task scheduling and allocation of the device for fully automatic water quality detection in the power plant laboratory is realized through the processor; The touch-controlled liquid crystal display module includes a liquid crystal touch and a touch-controlled liquid crystal display peripheral circuit; The data interface includes one or more of an RS232 interface, an RS485 interface, a USB interface, a WiFi interface, and a Bluetooth interface; communication and information exchange are achieved with the inlet subsystem, the colorimetric analysis module subsystem, and the electrode analysis module subsystem through the data interface, wherein the USB interface is used to export the operating parameters, operating records, and detection history data of the host control subsystem, the inlet subsystem, the colorimetric analysis module subsystem, the electrode analysis module subsystem, and the auxiliary subsystem; The storage module is used to store the operating parameters, operating records and detection history data of the host control subsystem, the inlet subsystem, the colorimetric analysis module subsystem, the electrode analysis module subsystem and the auxiliary subsystem.

3. A device for fully automatic detection of water quality in a power plant laboratory according to claim 2, characterized in that: The injection control module includes a second processor and a control peripheral circuit, which are used to implement the injection control logic of the injection subsystem and to communicate and exchange information with the host; The channel switching module includes an execution component and a sample pipeline. The execution component is connected to the sample pipeline, and realizes the switching of different samples and the switching and sample supply between different samples and pure water based on the control instructions of the injection control module.

4. A device for fully automatic detection of water quality in a power plant laboratory according to claim 3, characterized in that: The actuator is a robot arm or a multi-channel switching valve with three degrees of freedom of X, Y, and Z, wherein the multi-channel switching valve is a highly integrated PSA multi-channel rotary control valve, which is composed of a valve body, a rotary valve core, a driving device, a sensor, and an injection controller; wherein the valve body is used to install the rotary valve core and the driving device, the sensor is used to detect the position and speed of the valve core, and the sensor is used to receive the signal of the injection controller and control the driving device, thereby driving the valve core to rotate; when the device receives the control signal of the injection controller, the injection controller module determines the position and speed of the rotary valve core based on a preset algorithm, and outputs a corresponding control signal to the driving device; the driving device generates a corresponding driving torque according to the control signal, thereby driving the rotary valve core to rotate; at the same time, the sensor monitors the position and speed of the valve core in real time, and feeds back the signal to the injection controller; the injection controller adjusts the driving torque according to the feedback signal to achieve precise control of injection.

5. A device for fully automatic detection of water quality in a power plant laboratory according to claim 4, characterized in that: The colorimetric analysis module subsystem includes: a control module, a flow path module, and a colorimetric analysis module; wherein: The colorimetric analysis control module includes a third processor and a colorimetric analysis peripheral circuit for realizing sample, standard solution or pure water extraction, subsystem pump and valve timing logic control, calibration data storage, detection data storage, and communication and data transmission with the host; The first flow path module comprises a first pump valve unit, a first pipeline unit, a first sample unit, a first pure water unit, a first reagent unit and a first standard solution unit required for wet water quality analysis; wherein the first pump valve unit and the pipeline unit are used to realize the transfer and addition of samples, pure water, reagents and standard solutions; the first sample unit, the first pure water unit, the first reagent unit and the first standard solution unit are used to store samples, pure water, reagents and standard solutions respectively; The colorimetric analysis module includes a light source unit, a receiving unit, a colorimetric cell unit and a photoelectric signal conversion unit to realize sample concentration detection; and performs colorimetric analysis based on photoelectric colorimetry.

6. A device for fully automatic water quality detection in a power plant laboratory according to claim 5, characterized in that: The electrode analysis control module includes a fourth processor and an electrode analysis peripheral circuit for realizing sample, standard solution or pure water extraction, subsystem pump and valve timing logic control, calibration data storage, detection data storage, and communication and data transmission with a host; The second flow path module includes a second pump valve unit, a second pipeline unit, a second sample unit, a second pure water unit, a second reagent unit and a second standard solution unit required for electrochemical water quality analysis; wherein the second pump valve unit and the pipeline unit are used to realize the transfer and addition of samples, pure water, reagents and standard solutions; the second sample unit, the second pure water unit, the second reagent unit and the second standard solution unit are used to store samples, pure water, reagents and standard solutions respectively; The electrode analysis module comprises a sodium ion detection module (4) and a conductivity and pH detection module (5); The signal conversion module is used to convert the electrode electrical signal into sample corresponding concentration data; the electrode electrical signal includes the sodium ion concentration signal and the electrical conductivity and pH electrical signal detected by the sodium ion detection module (4) and the electrical conductivity and pH detection module (5).

7. A device for fully automatic detection of water quality in a power plant laboratory according to claim 6, characterized in that: The auxiliary subsystem includes liquid flow paths, valves and cables, which are used to discharge analytical waste liquid and cleaning waste liquid, as well as control the overall process operation and external communication.

8. A method for fully automatic detection of water quality in a power plant laboratory, implemented based on the device described in any one of claims 1 to 7, characterized in that: include: S1, multiple water quality test samples and pure water are respectively connected to each channel of the sampling module (8); S2, the host control subsystem (1) sends a start-of-work instruction to the sodium ion detection module (4), the conductivity and pH detection module (5), the plurality of colorimetric analysis modules and the sampling module (8) via the bus communication line (2); S3, based on the sampling module (8) switching the sampling channel to pure water and the bus-type sample pipeline (3) extracting corresponding pure water, the sodium ion detection module (4), the conductivity and pH detection module (5) and the first flow path module and the second flow path module of the plurality of colorimetric analysis modules are cleaned; S4, draining the cleaning liquid after cleaning, and uploading the working status of the sodium ion detection module (4), the conductivity and pH detection module (5) and the colorimetric analysis module to the host control subsystem (1); S5, based on the sampling module (8), the sampling channel is switched to the first sample, and the sodium ion detection module (4), the conductivity and pH detection module (5) and the colorimetric analysis module extract samples through the bus sample pipeline (3) and start analysis and detection of corresponding water quality indicators; S6, respectively discharging the analysis waste liquid generated after the analysis and detection of the sodium ion detection module (4), the conductivity and pH detection module (5) and the colorimetric analysis module, and uploading the various detection data and working status corresponding to the first sample to the host control subsystem (1) via the bus communication line (2); S7, repeating steps S5-S6 for each water quality test sample to obtain concentration detection data and working status of all water quality test samples.

9. An electronic device, characterized in that: The method comprises a processor and a memory, wherein the memory stores a plurality of instructions, and the processor is used to read the instructions and execute the method according to claim 8.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a plurality of instructions, which can be read by a processor to execute the method according to claim 8 .

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