An apparatus and method for fully automatic detection of water quality in a power plant laboratory

Abstract

The present invention relates to the technical field of automatic laboratory water quality detection, and discloses a device and method for fully automatic detection of power plant laboratory water quality. The device includes: a host control subsystem, a sample inlet subsystem, a colorimetric analysis module subsystem, an electrode type analysis module subsystem, and an auxiliary subsystem; the host control subsystem includes 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 allocation as well as data storage; the sample inlet subsystem includes a sample inlet control module, a sample inlet module, and a channel switching module; the colorimetric analysis module subsystem is used for index detection based on wet chemical analysis of water, and includes 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 electrochemical analysis of water, and includes an electrode type analysis control module, a second flow path module, an electrode type analysis module, and a signal conversion module; the auxiliary subsystem includes 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 particularly relates to a device and method for fully automatic detection of water quality in a power plant laboratory. Background Art

[0002] With the economic development of our country, the power industry has achieved a relatively fast development speed. The requirements for the quality of water and steam in generator sets are also getting higher and higher. The quality of water and steam is the key factor to ensure that there are no impurities in the water and steam circulation pipelines of generator sets. In order to closely monitor the quality of water and steam in generator sets and protect the steam turbines, boilers and pipelines from sediment fouling or corrosion, it is necessary to regularly take manual samples and conduct manual laboratory tests and analyses, compare the laboratory test data with the on-line data, and control each index of the water and steam system within the required range to prevent salt deposition, corrosion and scaling in the boiler system of the generator set, ensure the safe and economic operation of the boiler and turbine equipment, and achieve the purpose of extending the overhaul period and service life of the generator set.

[0003] At present, most power plant laboratories often need to manually detect the contents of silicate, phosphate, hydrazine, conductivity, pH, sodium ions, etc. in boiler water and steam samples by means of chemical colorimetry, electrochemistry, titration, etc. At present, there are problems such as a large number of samples to be detected, many indexes to be detected for each sample, high detection frequency, time-consuming, laborious and huge workload in the whole detection process; at the same time, the frequent contact of laboratory technicians with various chemical reagents during the detection process will also bring certain safety problems to varying degrees.

[0004] Therefore, there is a technical need to design a device and method for fully automatic detection of water quality in a power plant laboratory, which is applied to the power plant laboratory to conduct fully automatic detection of silicate, phosphate, hydrazine, pH, conductivity and sodium ions; with high automation degree and wide applicability, and the whole detection process does not require the participation of laboratory technicians. 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 a power plant laboratory, and to provide a technical method and solution for the instrument and equipment related to the automatic detection of water quality in a power plant laboratory, so as to improve the automation and detection efficiency of water quality detection in a power plant laboratory.

[0006] The first aspect of the present invention lies in providing a device for fully automatic detection of water quality in a power plant laboratory, including:

[0007] A host control subsystem (1), a sample inlet subsystem, a colorimetric analysis module subsystem, an electrode type analysis module subsystem, and an auxiliary subsystem;

[0008] The host control subsystem is used for system task scheduling, allocation, and data storage of the device for automatic full - scale water quality detection in a power plant laboratory; the host control subsystem includes a main control board module, a touch - controlled liquid crystal display module, a data interface, and a storage module;

[0009] The sample inlet subsystem is used for switching between different samples, switching between different samples and pure water, and supplying samples; the sample inlet subsystem includes a sample inlet control module, a sample inlet module (8), and a channel switching module;

[0010] The colorimetric analysis module subsystem is used for detecting water quality indicators based on wet chemical analysis in the industrial process of a power plant; 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 multiple colorimetric analysis modules;

[0011] The electrode - type analysis module subsystem is used for detecting water quality indicators by electro - chemical method for industrial process water in a power plant; the electrode - type analysis module subsystem includes an electrode - type analysis control module, a second flow path module, an electrode - type analysis module, and a signal conversion module;

[0012] The auxiliary subsystem realizes the discharge of analysis 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); among them, the host control subsystem (1) is communicatively connected to the sample inlet subsystem, the colorimetric analysis module subsystem, the electrode - type 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 pipeline - connected to the sample inlet subsystem, the colorimetric analysis module subsystem, the electrode - type analysis module subsystem, and the auxiliary subsystem through the bus - type sample pipeline (3) to realize the discharge of the analysis waste liquid and the cleaning waste liquid.

[0013] Preferably, the main control board module includes a first processor and the peripheral circuit of the main control board, and realizes the system task scheduling and allocation of the device for automatic full - scale water quality detection in a power plant laboratory through the processor;

[0014] The touch - controlled liquid crystal display module includes a liquid crystal touch and the peripheral circuit of the touch - controlled liquid crystal display;

[0015] 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 interaction are achieved with the sample introduction subsystem, the colorimetric analysis module subsystem, and the electrode type analysis module subsystem through the data interface, where the USB interface is used to export the operation parameters, operation records, and detection historical data of the host control subsystem, the sample introduction subsystem, the colorimetric analysis module subsystem, the electrode type analysis module subsystem, and the auxiliary subsystem;

[0016] The storage module is used to save the operation parameters, operation records, and detection historical data of the host control subsystem, the sample introduction subsystem, the colorimetric analysis module subsystem, the electrode type analysis module subsystem, and the auxiliary subsystem.

[0017] Preferably, the sample introduction control module includes a second processor and a control peripheral circuit, and is used to implement the sample introduction control logic of the sample introduction subsystem and communicate and interact with the host;

[0018] 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, the switching between different samples and pure water, and the sample supply based on the control instruction of the sample introduction control module.

[0019] Preferably, the execution component is a robotic arm with three degrees of freedom in the X, Y, and Z directions or a multi-channel switching valve; 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 a sample introduction 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 sample introduction controller and control the driving device, and then drive the valve core to rotate; the specific working principle is as follows: when the device receives the control signal of the sample introduction controller, the sample introduction controller module judges the position and speed of the rotary valve core according to the preset algorithm, and outputs the corresponding control signal to the driving device. The driving device generates the corresponding driving torque according to the control signal, and then drives 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.

[0020] Preferably, the colorimetric analysis module subsystem includes: a control module, a flow path module, and a colorimetric analysis module; where:

[0021] The colorimetric analysis control module includes a third processor and a colorimetric analysis peripheral circuit, and is used to realize the extraction of samples, standard solutions, or pure water, the timing logic control of the subsystem pump valves, the storage of calibration data, the storage of detection data, and the communication and data transmission with the host;

[0022] The first flow path module includes 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 chemical water quality analysis. The first pump valve unit and the pipeline unit are used to transfer and add 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 respectively used to store samples, pure water, reagents, and standard solutions.

[0023] The colorimetric analysis module includes a light source unit, a receiving unit, a colorimetric cell unit, and a photoelectric signal conversion unit to detect the sample concentration, and performs colorimetric analysis based on the photoelectric colorimetry method.

[0024] Preferably, the electrode type analysis control module includes a fourth processor and an electrode type analysis peripheral circuit, which are used to extract samples, standard solutions or pure water, control the timing logic of the subsystem pump valves, store calibration data, store detection data, and communicate and transfer data with the host computer.

[0025] 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. The second pump valve unit and the pipeline unit are used to transfer and add 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 respectively used to store samples, pure water, reagents, and standard solutions.

[0026] The electrode type analysis module includes a sodium ion detection module (4), a conductivity and pH detection module (5).

[0027] The signal conversion module is used to convert the electrode electrical signal into the corresponding concentration data of the sample. The electrode electrical signal includes the sodium ion concentration signal, conductivity, and pH electrical signal detected by the sodium ion detection module (4), the conductivity and pH detection module (5).

[0028] Preferably, the auxiliary subsystem includes a liquid flow path, valves, and cables, which are used to discharge analysis waste liquid and cleaning waste liquid, and control the overall process operation and external communication.

[0029] The second aspect of the present invention lies in providing a method for fully automatic water quality detection in a power plant laboratory, including:

[0030] S1, connect multiple water quality test samples and pure water to each channel of the sampling module (8) respectively.

[0031] S2. The host control subsystem (1) issues an instruction to start working to the sodium ion detection module (4), the conductivity and pH detection module (5), multiple colorimetric analysis modules, and the sampling module (8) through the bus-type communication line (2);

[0032] 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 first flow path module and the second flow path module of the sodium ion detection module (4), the conductivity and pH detection module (5), and the multiple colorimetric analysis modules are cleaned;

[0033] S4. The cleaned cleaning liquid is discharged externally, and at the same time, the working states of the sodium ion detection module (4), the conductivity and pH detection module (5), and the colorimetric analysis module are uploaded to the host control subsystem (1);

[0034] 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 the sample through the bus-type sample pipeline (3) and start the analysis and detection of the corresponding water quality indicators;

[0035] S6. The analysis waste liquids 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 are discharged externally respectively. At the same time, various detection data and working states corresponding to the first sample are uploaded to the host control subsystem (1) through the bus-type communication line (2);

[0036] S7. After repeating steps S5 - S6 for each water quality test sample respectively, the concentration detection data and working states of all water quality test samples are obtained.

[0037] The third aspect of the present invention provides an electronic device, including a processor, a memory, a display, and a communication module. The memory stores historical data of the detection indicators of each subsystem, as well as the operating state and task logic instructions. The processor is used to read and process the instructions. The display displays the process of the method as described in the second aspect. The communication module communicates with each subsystem device and instrument to implement the task scheduling of uploading detection data and working states.

[0038] The fourth aspect of the present invention provides a computer-readable storage medium. The computer-readable storage medium stores multiple task logic instructions, and the multiple task logic instructions can be read and executed by the processor to perform the method as described in the second aspect.

[0039] The device and method for automatic full-scale detection of water quality in a power plant laboratory of the present invention have the following beneficial effects:

[0040] An integrated laboratory full-automatic water quality analysis and detection device is formed, with a wider applicability and a higher degree of automation, and can be applied to the full-automatic detection of various factors such as silicate, phosphate, hydrazine, pH, conductivity, sodium ion, etc. in the water vapor samples of the power plant laboratory. Brief Description of the Drawings

[0041] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the related art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the related art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0042] Figure 1 It is a schematic structural diagram of a device for full-automatic water quality detection in a power plant laboratory according to an embodiment of the present invention;

[0043] Figure 2 It is a flowchart of a full-automatic water quality detection method for a power plant laboratory according to an embodiment of the present invention;

[0044] Figure 3 It is a schematic structural diagram of an embodiment of an electronic device according to an embodiment of the present invention. Detailed Embodiments

[0045] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the drawings. Obviously, the described embodiments are some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0046] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is 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 a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0047] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "linkage" 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 an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Embodiment 1

[0048] See Figure 1 , this embodiment provides a device for fully automatic detection of water quality in a power plant laboratory, including:

[0049] A host control subsystem 1, a sample inlet subsystem, a colorimetric analysis module subsystem, an electrode type analysis module subsystem, and an auxiliary subsystem; wherein, the host control subsystem 1 is communicatively connected to the sample inlet subsystem, the colorimetric analysis module subsystem, the electrode type analysis module subsystem, and the auxiliary subsystem through a bus-type communication line 2; the host control subsystem 1 is connected to the sample inlet subsystem, the colorimetric analysis module subsystem, the electrode type analysis module subsystem, and the auxiliary subsystem through a bus-type sample pipeline 3;

[0050] The host control subsystem is used for system task scheduling, allocation, and data storage of the device for fully automatic detection of water quality in a power plant laboratory; the host control subsystem includes a main control board module, a touch liquid crystal display module, a data interface, and a storage module;

[0051] The sample inlet subsystem is used for switching between different samples and switching and supplying samples between different samples and pure water; the sample inlet subsystem includes a sample inlet control module, a sample inlet module 8, and a channel switching module;

[0052] The colorimetric analysis module subsystem is used for detecting water quality indicators based on wet chemical analysis of water in the industrial process of a power plant; the colorimetric analysis module subsystem includes a colorimetric analysis control module, a first flow path module, and a colorimetric analysis module;

[0053] In this embodiment, the colorimetric analysis module has multiple colorimetric analysis modules; for example, Figure 1 as shown, there are colorimetric analysis module n6 and colorimetric analysis module 17, and others are omitted and not shown.

[0054] The electrode type analysis module subsystem is used for detecting water quality indicators by electrochemistry method for industrial process water in a power plant; the electrode type analysis module subsystem includes an electrode type analysis control module, a second flow path module, an electrode type analysis module, and a signal conversion module;

[0055] The auxiliary subsystem realizes the control of the discharge of analysis waste liquid and cleaning waste liquid, the operation of the overall process, and external communication.

[0056] As a preferred embodiment, the main control board module includes a first processor and the peripheral circuit of the main control board, and realizes the system task scheduling and allocation of the device for automatic full - scale water quality detection in the power plant laboratory through the processor;

[0057] The touch - controlled liquid crystal display module includes a liquid crystal touch and the peripheral circuit of the touch - controlled liquid crystal display;

[0058] The data interface includes one or more of RS232 interface, RS485 interface, USB interface, WiFi interface, and Bluetooth interface; through the data interface, communication and information interaction are realized with the sample inlet subsystem, the colorimetric analysis module subsystem, and the electrode - type analysis module subsystem, where the USB interface is used to export the operation parameters, operation records, and detection historical data of the host control subsystem, the sample inlet subsystem, the colorimetric analysis module subsystem, the electrode - type analysis module subsystem, and the auxiliary subsystem;

[0059] The storage module is used to save the operation parameters, operation records, and detection historical data of the host control subsystem, the sample inlet subsystem, the colorimetric analysis module subsystem, the electrode - type analysis module subsystem, and the auxiliary subsystem.

[0060] As a preferred embodiment, the sample injection control module includes a second processor and the control peripheral circuit, and is used to realize the sample injection control logic of the sample inlet subsystem and communicate and interact with the host;

[0061] 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, the switching between different samples and pure water, and the sample supply based on the control instruction of the sample injection control module.

[0062] As a preferred embodiment, the execution component is a robotic arm with three degrees of freedom in X, Y, and Z directions or a multi - channel switching valve.

[0063] Among them: The multi - channel switching valve adopted in this embodiment can be 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 a sample 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 sample injection controller and control the driving device, thereby driving the valve core to rotate.

[0064] The specific working principle is as follows: When the device receives the control signal from the sample injection controller, the sample injection controller module determines the position and speed of the rotating valve core according to the preset algorithm, and outputs the corresponding control signal to the driving device. The driving 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 back the signal to the controller. The controller adjusts the driving torque according to the feedback signal to achieve precise control.

[0065] As a preferred embodiment, the colorimetric analysis module subsystem includes: a control module, a flow path module, and a colorimetric analysis module; where:

[0066] The colorimetric analysis control module includes a third processor and a colorimetric analysis peripheral circuit, which are used to realize the extraction of samples, standard solutions or pure water, the timing logic control of the subsystem pump valves, the storage of calibration data, the storage of detection data, and the communication and data transmission with the host computer;

[0067] The first flow path module includes 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 method water quality analysis; where 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 respectively used to store samples, pure water, reagents, and standard solutions;

[0068] The colorimetric analysis module includes a light source unit, a receiving unit, a colorimetric cell unit, and a photoelectric signal conversion unit, which realizes the detection of sample concentration; its working principle is: Colorimetric analysis is an analytical method established based on the selective absorption of light by solutions, also known as absorptiometry. The color of a colored substance solution is related to its concentration. The greater the concentration of the solution, the deeper the color. By using optics to compare the depth of the solution color, the concentration of the solution can be measured. According to the different wavelength ranges of the absorbed light and the precision of the instrument used, it can be divided into photoelectric colorimetry and spectrophotometry. The photoelectric colorimetry is used in this embodiment. Ions of different valence states of an element all have a specific color of that element's 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 respective specific colors, the depth of this color is also strictly linearly related to the concentration of the ions. As long as there are no other interfering factors, the proportional relationship between this color of the ions and their concentration in the solution can be used to conduct a comparative analysis of the ion concentration in the solution. This method of analyzing the ion concentration in a solution through the ion color is called colorimetric analysis.

[0069] The process of colorimetric analysis in this embodiment:

[0070] After a beam of parallel monochromatic light (light of only one wavelength) emitted by the light source unit is incident on the water sample to be tested (colored solution), part of the light is absorbed and part of it passes through the solution. The transmitted part is received by the receiving unit, and color comparison is carried out through the colorimetric cell. With the help of the photoelectric signal conversion unit, the absorbance of a series of standard solutions is measured, and a working curve is plotted. Then, according to the absorbance of the test solution, its concentration or content is obtained from the working curve. Then, the ion concentration in the water sample to be tested is determined based on the color comparison result and the working curve. The determination method is as follows: First, the water sample whose content needs to be determined is prepared into a standard solution with a standard concentration. Then, it is diluted with distilled water in different equal parts into standard solutions with different concentrations, such as 80%, 70%, 60%, 50%, etc. and put into clean test tubes for standby. When the concentration analysis of the working solution to be tested is required, just take the same test tube, put the test solution into the test tube, and then compare the color with the test tube of the standard solution with a known concentration. A standard that is the same as or close to it can always be found to determine the ion concentration in the water sample to be tested.

[0071] As a preferred embodiment, the electrode type analysis control module includes a fourth processor and an electrode type analysis peripheral circuit, which are used to realize the extraction of samples, standard solutions or pure water, the timing logic control of the subsystem pump valves, the storage of calibration data, the storage of detection data, and the communication and data transmission with the host computer.

[0072] 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 respectively used to store samples, pure water, reagents and standard solutions.

[0073] The electrode type analysis module includes a sodium ion detection module 4, a conductivity and pH detection module 5.

[0074] The signal conversion module is used to convert the electrode electrical signal into the corresponding concentration data of the sample; the electrode electrical signal includes the sodium ion concentration signal, conductivity and pH electrical signals detected by the sodium ion detection module 4, the conductivity and pH detection module 5.

[0075] As a preferred embodiment, the auxiliary subsystem includes a liquid flow path, valves and cables, which are used to discharge the analysis waste liquid and cleaning waste liquid, as well as the control of the overall process operation and external communication. Embodiment 2

[0076] See Figure 2 , this embodiment provides a method for fully automatic detection of water quality in a power plant laboratory, which is realized based on the device of Embodiment 1 and includes:

[0077] S1. Connect multiple water quality test samples and pure water to each channel of the sample injection module 8 respectively;

[0078] In this embodiment, connect sample 1... sample n and pure water to each channel of the sample injection module 8 respectively;

[0079] S2. The host control subsystem 1 issues instructions to start working to the sodium ion detection module 4, the conductivity and pH detection module 5, multiple colorimetric analysis modules and the sample injection module 8 through the bus-type communication line 2;

[0080] In this embodiment, the host control subsystem 1 issues instructions to start working to the sodium ion detection module 4, the conductivity and pH detection module 5, the colorimetric analysis module and the sample injection module 8 through the bus-type communication line 2;

[0081] S3. Based on the sample injection module 8 switching the sampling channel to pure water and the bus-type sample pipeline 3 extracting the corresponding pure water, clean the first flow path module and the second flow path module of the sodium ion detection module 4, the conductivity and pH detection module 5 and the multiple colorimetric analysis modules;

[0082] In this embodiment, the sample injection 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-type sample pipeline 3, and each module starts to clean the internal flow path of the module;

[0083] S4. Drain the cleaned cleaning liquid, and at the same time upload the working states 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;

[0084] In this embodiment, after the cleaning of each module is completed, the cleaning liquid is drained separately, and at the same time, their respective working states are uploaded to the host control subsystem 1 through the bus-type communication line 2;

[0085] S5. Based on the sample injection 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 the sample through the bus-type sample pipeline 3 and start the analysis and detection of the corresponding water quality indicators;

[0086] In this embodiment, the sample injection 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-type sample pipeline 3, and each module starts the analysis and detection of the corresponding water quality indicators;

[0087] S6. After the analysis and detection of the sodium ion detection module 4, the conductivity and pH detection module 5, and the colorimetric analysis module are completed, the analysis waste liquids generated are discharged separately. At the same time, various detection data and working statuses corresponding to the first sample are uploaded to the host control subsystem 1 through the bus-type communication line 2;

[0088] S7. After repeating steps S5 - S6 for each water quality test sample, the concentration detection data and working statuses of all water quality test samples are obtained.

[0089] 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-type 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 are completed, the analysis waste liquids are discharged separately. At the same time, various detection data and working statuses corresponding to sample n are uploaded to the host 1 through the bus-type communication line 2. Embodiment III

[0090] Provided is an electronic device, including a processor, a memory, a display, and a communication module. The memory stores historical data of the detection indicators of each subsystem, as well as the operating status and task logic instructions. The processor is used to read and process the instructions. The display displays the process flow of the method as described in Embodiment II. The communication module communicates with each subsystem device and instrument to implement the upload task scheduling of concentration data and device status. Embodiment IV

[0091] As Figure 3 shown, the present invention further 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. The memory 301 stores historical data of the detection indicators of each subsystem, as well as the operating status and task logic instructions. The instructions can be loaded by the processor. The display 303 displays and interacts with the information of the process flow method of Embodiment II or Embodiment III. The communication module 304 realizes communication with each subsystem device and instrument to implement the upload of concentration data and device status, as well as various task scheduling.

[0092] Through the description of the above embodiments, those skilled in the art can clearly understand that the above embodiments can be implemented by software, or can be implemented by means of software plus a necessary general hardware platform. Based on such an understanding, the technical solutions of the above embodiments can be embodied in the form of a software product, and the software product 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 causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in various embodiments of the present invention.

[0093] 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 foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the various 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 and supplying between different samples and pure water; the injection subsystem comprises an injection control module, an injection module (8) and a channel switching module; the channel switching module comprises an execution component and a sample pipeline, the execution component is connected to the sample pipeline, and the switching between different samples and the switching and supplying between different samples and pure water are realized based on the control instructions of the injection control module; the execution component is a robot arm with three degrees of freedom of X, Y and Z or a multi-channel switching valve; 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.

4. A device for fully automatic detection of water quality in a power plant laboratory according to claim 3, characterized in that: The multi-channel switching valve is a highly integrated PSA multi-channel rotary control valve, which consists 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 according to 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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