Detection device

Abstract

The utility model belongs to the technical field of wastewater treatment, and discloses a detection device which comprises an accommodating kettle, a detection instrument, a to-be-detected liquid circulating pipeline and a plurality of mutually independent liquid accommodating tanks. And the detection instrument can be inserted into the accommodating kettle in a manner of rotating around the axis of the detection instrument. The liquid containing tanks are selectively communicated with the containing kettle respectively and can provide cleaning liquid or calibration liquid for the containing kettle. The to-be-detected liquid circulating pipeline is communicated with the to-be-detected liquid tank and selectively communicated with the accommodating kettle, so that the to-be-detected liquid can be provided for the accommodating kettle, and the to-be-detected liquid in the accommodating kettle can be discharged to the to-be-detected liquid tank. The detection device can meet the water quality detection requirement of the to-be-detected liquid, the probe can be automatically cleaned and calibrated, the cleaning effect is improved, the service life is prolonged, and manual labor is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to a detection device. Background Art

[0002] In the acid-base dosing process stage in the field of wastewater treatment, a pH instrument is generally used to collect the pH data of the wastewater, and then the dosage of the reagent is controlled according to the pH data collected by the pH instrument, so as to finally achieve the effect of wastewater treatment and make its water quality meet the standards.

[0003] Since the pH instrument needs to be immersed in wastewater for a long time, various pollutants in the wastewater may interfere with the probe of the pH instrument, which is manifested as probe clogging and probe scaling, resulting in the probe being covered, affecting the accuracy of the probe detection, and causing the collected pH values ​​to be offset and the accuracy to decrease. Therefore, it is necessary to regularly use manual intervention to clean and maintain the pH instrument. If the accuracy of the probe detection is still insufficient after the pH instrument is cleaned, the pH instrument needs to be manually recalibrated before it can be put into use again.

[0004] The above-mentioned manual intervention method significantly increases the operational maintenance cost of wastewater treatment. In addition, it is difficult to control the cleaning intensity in the manual cleaning method. During the cleaning process, the probe may be damaged, resulting in a shortened effective service life of the pH instrument and an increase in the equipment cost of wastewater treatment. If the accuracy of the probe detection is insufficient, it will have a direct impact on the dosage of the reagents in the acid and alkali dosing process, resulting in excessive dosage of the reagents, high costs, or too little dosage of the reagents, and substandard water quality, affecting the effect of wastewater treatment.

[0005] Therefore, a detection device is urgently needed to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a detection device which can meet the water quality detection requirements of the liquid to be tested and can automatically clean and calibrate the probe, thereby improving the cleaning effect, extending the service life and saving manual labor.

[0007] To achieve this purpose, the utility model adopts the following technical solutions:

[0008] The detection device comprises:

[0009] containing kettle;

[0010] A detection instrument is inserted into the containing kettle so as to be rotatable around its own axis;

[0011] A plurality of mutually independent liquid holding tanks, each of which is selectively connected to the holding kettle and can provide cleaning liquid or calibration liquid to the holding kettle;

[0012] The test liquid circulation pipeline is connected to the test liquid pool and selectively connected to the holding kettle, and can provide the test liquid to the holding kettle and discharge the test liquid in the holding kettle to the test liquid pool.

[0013] As a preferred solution of the detection device provided by the utility model, the multiple liquid holding tanks include multiple cleaning liquid tanks and calibration liquid tanks, the multiple cleaning liquid tanks can provide multiple cleaning liquids to the holding kettle, and the calibration liquid tank can provide calibration liquid to the holding kettle.

[0014] As a preferred embodiment of the detection device provided by the utility model, the test liquid circulation pipeline includes a liquid inlet pipe, a liquid discharge pipe, a sampling pump and a liquid discharge valve; the liquid inlet pipe and the liquid discharge pipe are respectively connected to the test liquid pool and the holding kettle; the sampling pump is arranged in the liquid inlet pipe, and is configured to introduce the test liquid from the test liquid pool into the holding kettle; the liquid discharge valve is arranged in the liquid discharge pipe, and is configured to guide the test liquid from the holding kettle to the test liquid pool.

[0015] As a preferred embodiment of the detection device provided by the utility model, the detection device also includes a liquid guide pipe, which includes a cleaning pipe, a cleaning pump and a nozzle. The cleaning pump is arranged in the cleaning pipe, one end of the cleaning pipe is connected to the bottom of the holding kettle, and the nozzle is arranged at the other end, and is directly facing the probe of the detection instrument at an angle to the axial direction of the holding kettle. The cleaning pump can guide the liquid at the bottom of the holding kettle to the probe, and the nozzle can spray the liquid to the probe.

[0016] As a preferred solution of the detection device provided by the utility model, the test liquid circulation pipeline includes an overflow pipe, the overflow pipe is connected to the holding kettle and the test liquid pool, and the liquid in the holding kettle can flow to the test liquid pool through the overflow pipe; the connection position between the overflow pipe and the holding kettle is higher than the height of the probe of the detection instrument.

[0017] As a preferred solution of the detection device provided by the utility model, the opening in the axial direction of the containing kettle is detachably and sealedly connected with a rotating component, and the detection instrument is coaxially connected to the rotating component and can rotate around its own axis driven by the rotating component.

[0018] As a preferred solution of the detection device provided by the utility model, the detection device further comprises an ultrasonic generator, and the ultrasonic generator is arranged on the side of the containing kettle.

[0019] As a preferred embodiment of the detection device provided by the utility model, the detection device also includes a control module, and the detection instrument and a part of the test liquid circulation pipeline are respectively communicatively connected to the control module; the control module can control the connection and disconnection of the test liquid circulation pipeline and the holding kettle, and can also respectively control the connection and disconnection of multiple liquid holding tanks and the holding kettle.

[0020] As a preferred solution of the detection device provided by the utility model, a liquid level sensor is provided in the liquid holding tank, and the liquid level sensor is configured to detect the liquid level in the liquid holding tank.

[0021] As a preferred solution of the detection device provided by the utility model, the detection device also includes a device housing, and the plurality of liquid holding tanks, the holding kettle and the test liquid circulation pipeline are respectively arranged in the device housing, and a portion of the test liquid circulation pipeline extends out of the device housing.

[0022] Beneficial effects of the utility model:

[0023] The utility model provides a detection device, which includes a holding kettle, a detection instrument, a test liquid circulation pipeline and a plurality of mutually independent liquid holding tanks. The detection instrument can be inserted in the holding kettle rotatably around its own axis; a plurality of the liquid holding tanks are selectively connected to the holding kettle, respectively, and can provide cleaning liquid or calibration liquid to the holding kettle. That is to say, the detection instrument rotates in the liquid in the holding kettle, and can clean or calibrate its probe according to different types of liquids, improve the cleaning effect, extend the service life, and save manual labor. The test liquid circulation pipeline is connected to the test liquid pool, and selectively connected to the holding kettle, and can provide the test liquid to the holding kettle, and can also discharge the test liquid in the holding kettle to the test liquid pool. That is to say, through the test liquid circulation pipeline, the test liquid in the test liquid pool can be circulated between the holding kettle and the test liquid pool, and the detection instrument can detect the test liquid in the holding kettle, meeting the conventional water quality detection requirements of the test liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the detection device provided in the embodiment of the utility model.

[0025] In the figure:

[0026] 100, containing kettle; 110, rotating assembly; 111, sealing rotating cover; 112, connecting sleeve;

[0027] 200, testing instrument; 210, probe; 220, installation connector; 230, wire;

[0028] 300, test liquid circulation pipeline; 310, liquid inlet pipe; 320, liquid discharge pipe; 330, sampling pump; 340, liquid discharge valve; 350, overflow pipe;

[0029] 410, cleaning liquid tank; 411, clean water tank; 412, alkaline liquid tank; 413, acidic liquid tank; 420, calibration liquid tank; 430, liquid level sensor; 441, clean water control valve; 442, alkaline liquid control valve; 443, acidic liquid control valve; 444, calibration liquid control valve; 450, automatic water supply valve;

[0030] 500, liquid guiding pipeline; 510, cleaning pipe; 520, cleaning pump; 530, nozzle;

[0031] 600. Ultrasonic generator;

[0032] 700, control module;

[0033] 800. Device housing. DETAILED DESCRIPTION

[0034] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0035] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" 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, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0037] In the description of this embodiment, the terms "upper", "lower", "right", "left" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0038] Figure 1 The schematic diagram of the structure of the detection device provided by the embodiment of the utility model is shown. Figure 1 , this embodiment provides a detection device. The detection device includes a device housing 800, a holding kettle 100, a detection instrument 200, a test liquid circulation pipeline 300, and a plurality of independent liquid holding tanks. The plurality of liquid holding tanks, the holding kettle 100, and the test liquid circulation pipeline 300 are respectively arranged in the device housing 800, and a portion of the test liquid circulation pipeline 300 extends out of the device housing 800 to connect with the test liquid pool. The device housing 800 can protect the various components inside it to prevent erosion damage due to the installation position close to the test liquid pool.

[0039] Specifically, the detection instrument 200 can be inserted into the holding kettle 100 so as to rotate around its own axis. The plurality of liquid holding tanks are selectively connected to the holding kettle 100, respectively, and can provide cleaning liquid or calibration liquid to the holding kettle 100. In other words, the detection instrument 200 rotates in the liquid in the holding kettle 100, and can clean or calibrate its probe 210 according to the different types of liquid, thereby improving the cleaning effect, extending the service life, and saving manual labor. The test liquid circulation pipeline 300 is connected to the test liquid pool, and selectively connected to the holding kettle 100, and can provide the test liquid to the holding kettle 100, and can also discharge the test liquid in the holding kettle 100 into the test liquid pool. That is to say, through the test liquid circulation pipeline 300, the test liquid in the test liquid pool can be circulated between the containing kettle 100 and the test liquid pool, and the detection instrument 200 can detect the test liquid in the containing kettle 100. In the present embodiment, the detection instrument 200 is specifically a pH detector, and the above-mentioned setting can meet conventional water quality detection requirements such as pH detection of the test liquid.

[0040] More specifically, a wire 230 is connected to the top of the detection instrument 200 away from the probe 210. The wire 230 extends out of the device housing 800, and a mounting joint 220 is provided at a position of the device housing 800 where the wire 230 extends out, and the wire 230 is passed through the mounting joint 220. The mounting joint 220 can be quickly connected to the top opening of the device housing 800 in a plug-in manner, and a sealing ring is provided around the periphery thereof to achieve sealing of the device housing 800.

[0041] More specifically, the top opening of the container 100 in the axial direction is detachably sealed with a rotating assembly 110, and the detection instrument 200 is coaxially connected to the rotating assembly 110 and can rotate around its own axis under the drive of the rotating assembly 110. The rotating assembly 110 specifically includes a sealed rotating cover 111 and a connecting sleeve 112. The connecting sleeve 112 is coaxially connected to the side of the sealed rotating cover 111 facing the inside of the container 100, and the detection instrument 200 is coaxially sleeved and connected in the connecting sleeve 112 and extends out of the connecting sleeve 112. The detection instrument 200 can rotate around its own axis in the container 100 under the drive of the sealed rotating cover 111 and the transmission action of the connecting sleeve 112.

[0042] Continue to refer to Figure 1 The plurality of liquid holding tanks specifically include a plurality of cleaning liquid tanks 410 and a calibration liquid tank 420. The plurality of cleaning liquid tanks 410 can provide a plurality of cleaning liquids to the holding kettle 100, and the calibration liquid tank 420 can provide a calibration liquid to the holding kettle 100. In this embodiment, the cleaning liquid tank 410 includes a clean water tank 411, an alkaline liquid tank 412, and an acidic liquid tank 413. A baffle is provided in the device housing 800, and the baffle divides the device housing 800 into a solvent room and an operating room in a vertical direction. The clean water tank 411, the alkaline liquid tank 412, the acidic liquid tank 413, and the calibration liquid tank 420 are located in the solvent room and are arranged side by side on the baffle.

[0043] Specifically, the detection device also includes a control module 700, which is arranged in the operating room. A clean water control valve 441 is arranged in the connecting pipeline between the clean water tank 411 and the holding kettle 100; an alkaline liquid control valve 442 is arranged in the connecting pipeline between the alkaline liquid tank 412 and the holding kettle 100; an acidic liquid control valve 443 is arranged in the connecting pipeline between the acidic liquid tank 413 and the holding kettle 100; and a calibration liquid control valve 444 is arranged in the connecting pipeline between the calibration liquid tank 420 and the holding kettle 100. The clean water control valve 441, the alkaline liquid control valve 442, the acidic liquid control valve 443 and the calibration liquid control valve 444 are respectively connected to the control module 700 for communication, and all of them can be selected as solenoid valves, and can also be selected as small peristaltic pumps, so as to control the selective connection of the pipelines, and their specific types are not limited in this embodiment. The control module 700 can accurately control the flow rate of each liquid into the holding kettle 100 by respectively controlling the clean water control valve 441, the alkaline liquid control valve 442, the acidic liquid control valve 443 and the calibration liquid control valve 444. The control module 700 can specifically select a PLC controller, and its structure and principle are not described in detail in this embodiment.

[0044] More specifically, a liquid level sensor 430 is provided in the liquid holding tank, and the liquid level sensor 430 is configured to detect the liquid level in the liquid holding tank. In this embodiment, the clean water tank 411, the alkaline liquid tank 412, the acidic liquid tank 413 and the calibration liquid tank 420 are all provided with a liquid level sensor 430 to detect the liquid level in the corresponding liquid holding tanks, so that the operator can know in time and add each liquid. The above-mentioned multiple liquid level sensors 430 are respectively connected to the control module 700 in communication, and the control module 700 is also connected to a reminder device such as a buzzer or a warning light in communication. When the liquid level sensor 430 in a certain liquid holding tank detects that the liquid level is too low, the control module 700 can control the reminder device to remind the operator.

[0045] Preferably, an automatic water replenishment valve 450 is provided on the pipeline between the clean water tank 411 and the water source. The automatic water replenishment valve 450 is communicatively connected to the control module 700. When the liquid level in the clean water tank 411 is too low, the control module 700 can receive the bottom and low liquid level signals from the liquid level sensor 430 in the clean water tank 411, and at this time, the automatic water replenishment valve 450 can be controlled to open to realize automatic liquid replenishment of the clean water tank 411.

[0046] More specifically, the detection instrument 200 is communicatively connected to the control module 700, and can transmit the detection signal obtained by the detection instrument 200 on the test liquid to the control module 700. The control module 700 is also communicatively connected to a display device such as a display screen, and the display device can display the detection data.

[0047] Continue to refer to Figure 1 The test liquid circulation pipeline 300 is arranged at the bottom of the operating room in the device housing 800, and includes a liquid inlet pipe 310, a liquid discharge pipe 320, a sampling pump 330 and a liquid discharge valve 340. The liquid inlet pipe 310 and the liquid discharge pipe 320 extend out of the device housing 800, and the sampling pump 330 and the liquid discharge valve 340 are located in the operating room. The liquid inlet pipe 310 and the liquid discharge pipe 320 are respectively connected to the bottom of the test liquid pool and the holding kettle 100. The sampling pump 330 is arranged in the liquid inlet pipe 310, and specifically a peristaltic pump in the prior art can be selected, and is configured to introduce the test liquid from the test liquid pool into the holding kettle 100 through the liquid inlet pipe 310. The liquid discharge valve 340 is arranged in the liquid discharge pipe 320, and specifically a solenoid valve in the prior art can be selected, and is configured to guide the test liquid from the holding kettle 100 through the liquid discharge pipe 320 to the test liquid pool. The sampling pump 330 and the drain valve 340 are respectively communicatively connected to the control module 700 . The control module 700 can control the flow direction of the liquid to be tested by controlling the sampling pump 330 and the drain valve 340 .

[0048] Specifically, the test liquid circulation pipeline 300 further includes an overflow pipe 350. The overflow pipe 350 is connected to the holding kettle 100 and the test liquid pool, and the liquid in the holding kettle 100 can flow to the test liquid pool through the overflow pipe 350. The connection position of the overflow pipe 350 and the holding kettle 100 is higher than the height of the probe 210. By providing the overflow pipe 350, the problem of the liquid level in the holding kettle 100 being too high can be prevented, so that the liquid level in the holding kettle 100 is always maintained at a position slightly higher than the probe 210.

[0049] It should be noted that the device housing 800 is installed next to the liquid pool to be tested in a wall-mounted or vertical installation manner. In order to facilitate the overflow effect of the overflow pipe 350 and the normal drainage process of the container 100 by the drain pipe 320, the installation height of the bottom of the device housing 800 needs to be maintained above the liquid level of the liquid pool to be tested.

[0050] Continue to refer to Figure 1 , the detection device also includes a liquid guiding pipeline 500. The liquid guiding pipeline 500 includes a cleaning pipe 510, a cleaning pump 520 and a nozzle 530. The cleaning pump 520 is arranged in the cleaning pipe 510, one end of the cleaning pipe 510 is connected to the bottom of the holding kettle 100, and the nozzle 530 is arranged at the other end, and faces the probe 210 of the detection instrument 200 in a manner of forming an angle with the axial direction of the holding kettle 100. In this embodiment, the nozzle 530 faces the probe 210 perpendicular to the axial direction of the detection instrument 200. The cleaning pump 520 can guide the liquid at the bottom of the holding kettle 100 to the probe 210, and the nozzle 530 can spray the liquid to the probe 210, thereby increasing the impact force on the probe 210 and improving the cleaning efficiency.

[0051] Preferably, in order to further improve the cleaning effect of the probe 210, the detection device further includes an ultrasonic generator 600, which is disposed on the side of the container 100 to further clean the probe 210 using ultrasonic waves. The ultrasonic generator 600 is also communicatively connected to the control module 700, so that the control module 700 can be used to control the ultrasonic generator 600.

[0052] Preferably, the holding kettle 100 is a visual structure. Through the above configuration, it is convenient for the operator to observe the cleanliness of the probe 210, thereby improving the degree of manual control over the cleaning cycle and time.

[0053] This embodiment also provides a method for cleaning and calibrating a detection device, which is specifically performed based on the detection device provided in this embodiment. The method for cleaning and calibrating the detection device includes:

[0054] In the daily detection work of the detection device provided in this embodiment, the probe 210 can be rinsed with the object to be tested, and the steps are as follows:

[0055] S11, stopping the communication connection between the detection instrument 200 and the control module 700, and the control module 700 keeps recording the last historical value;

[0056] S12, set the working time for the cleaning pump 520, control the rotating assembly 110 to drive the detection instrument 200 to rotate, and start the ultrasonic generator 600. The above working time can be set according to experience, such as twice a day, five minutes each time, and stop the action of each component after a cycle of reciprocating cleaning;

[0057] S13, when the probe 210 is rinsed clean and the sampling pump 330 is running stably, the detection instrument 200 is connected to the control module 700 to enable the normal operation of the detection device.

[0058] The detection device provided in this embodiment uses clean water to clean the probe 210 as follows:

[0059] S21, stopping the communication connection between the detection instrument 200 and the control module 700, and the control module 700 keeps recording the last historical value;

[0060] S22, the sampling pump 330 reverses and empties and then stops, and the cleaning pump 520 reverses and empties and then stops; the drain valve 340 opens, empties the liquid in the container 100 and then closes;

[0061] S23, control the clean water control valve 441 to inject clean water into the containing kettle 100, the cleaning pump 520 rotates forward, and controls the rotating assembly 110 to drive the detection instrument 200 to rotate, and starts the ultrasonic generator 600; repeat step S23 for three cycles, and the clean water cleaning process is completed by default;

[0062] S24, the drain valve 340 is opened to drain the liquid in the container 100 and then closed, the sampling pump 330 is turned on to pump the liquid to be tested into the container 100, and after the sampling pump 330 works stably, the detection instrument 200 is connected to the control module 700 to enable the normal operation of the detection device.

[0063] The detection device provided in this embodiment uses chemical agents to clean the probe 210 as follows:

[0064] S31, stopping the communication connection between the detection instrument 200 and the control module 700, and the control module 700 keeps recording the last historical value;

[0065] S32, using clean water to clean the probe 210 for about three cycles;

[0066] S33, the sampling pump 330 reverses and empties and then stops, and the cleaning pump 520 reverses and empties and then stops; the drain valve 340 opens, empties the liquid in the container 100 and then closes;

[0067] S34, control the alkaline liquid control valve 442 to inject alkaline cleaning liquid into the containing kettle 100, the cleaning pump 520 rotates forward, and controls the rotating assembly 110 to drive the detection instrument 200 to rotate, and starts the ultrasonic generator 600; repeat step S34 for three cycles, and the alkaline liquid cleaning process is completed by default;

[0068] S35, control the acid liquid control valve 443 to inject the acid cleaning liquid into the container 100, the cleaning pump 520 rotates forward, and controls the rotating assembly 110 to drive the detection instrument 200 to rotate, and starts the ultrasonic generator 600; repeat step S35 for three cycles, and the acid liquid cleaning process is completed by default;

[0069] S36, cleaning the probe 210 again with clean water for about three cycles;

[0070] S37, the drain valve 340 is opened to drain the liquid in the container 100 and then closed, the sampling pump 330 is turned on to pump the liquid to be tested into the container 100, and after the sampling pump 330 works stably, the detection instrument 200 is connected to the control module 700 to enable the normal operation of the detection device.

[0071] It should be noted that if the pH of the liquid to be tested is acidic for a long time, the above steps are executed; if the pH of the liquid to be tested is alkaline for a long time, the liquid is first cleaned with an acidic cleaning solution and then with an alkaline cleaning solution, i.e., the order of step S34 and step S35 is swapped.

[0072] The automatic calibration process of the detection device provided in this embodiment is as follows:

[0073] S41, stopping the communication connection between the detection instrument 200 and the control module 700, and the control module 700 keeps recording the last historical value;

[0074] S42, using clean water to clean the probe 210 for about three cycles;

[0075] S43, the sampling pump 330 reverses and empties and then stops, and the cleaning pump 520 reverses and empties and then stops; the drain valve 340 opens, empties the liquid in the container 100 and then closes;

[0076] S44, controlling the calibration liquid control valve 444 to inject the calibration liquid into the container 100, and after the probe 210 is soaked, comparing the detection value displayed on the display device with the known data value of the calibration liquid;

[0077] S45, the control module 700 controls the data acquisition to automatically judge. If the absolute value of the difference between the test value and the known data value of the calibration liquid is ≤0.5, proceed to the subsequent step S46; if the absolute value of the difference between the test value and the known data value of the calibration liquid is >0.5, calibrate the detection instrument 200 again and compare again. If the absolute value of the difference between the test value and the known data value of the calibration liquid after three calibrations is greater than 0.5, the detection instrument 200 is scrapped.

[0078] S46, cleaning the probe 210 again with clean water for about three cycles;

[0079] S47, the drain valve 340 is opened to drain the liquid in the container 100 and then closed, the sampling pump 330 is turned on to pump the liquid to be tested into the container 100, and after the sampling pump 330 works stably, the detection instrument 200 is connected to the control module 700 to enable the normal operation of the detection device.

[0080] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A detection device, characterized in that: include: A containing kettle (100); A detection instrument (200) is inserted into the containing kettle (100) so as to be rotatable around its own axis; a plurality of mutually independent liquid holding tanks, each of which is selectively connected to the holding kettle (100) and can provide cleaning liquid or calibration liquid to the holding kettle (100); The test liquid circulation pipeline (300) is connected to the test liquid pool and selectively connected to the holding kettle (100), and can provide the test liquid to the holding kettle (100) and discharge the test liquid in the holding kettle (100) to the test liquid pool.

2. The detection device according to claim 1, characterized in that: The plurality of liquid holding tanks include a plurality of cleaning liquid tanks (410) and a calibration liquid tank (420). The plurality of cleaning liquid tanks (410) can provide a plurality of cleaning liquids to the holding kettle (100), and the calibration liquid tank (420) can provide the calibration liquid to the holding kettle (100).

3. The detection device according to claim 1, characterized in that: The test liquid circulation pipeline (300) comprises a liquid inlet pipe (310), a liquid discharge pipe (320), a sampling pump (330) and a liquid discharge valve (340); the liquid inlet pipe (310) and the liquid discharge pipe (320) are respectively connected to the test liquid pool and the holding kettle (100); the sampling pump (330) is arranged in the liquid inlet pipe (310) and is configured to guide the test liquid from the test liquid pool to the holding kettle (100); the liquid discharge valve (340) is arranged in the liquid discharge pipe (320) and is configured to guide the test liquid from the holding kettle (100) to the test liquid pool.

4. The detection device according to claim 3, characterized in that: The detection device further comprises a liquid guiding pipeline (500), wherein the liquid guiding pipeline (500) comprises a cleaning pipe (510), a cleaning pump (520) and a nozzle (530), wherein the cleaning pump (520) is arranged in the cleaning pipe (510), one end of the cleaning pipe (510) is connected to the bottom of the containing kettle (100), and the nozzle (530) is arranged at the other end thereof and faces the probe (210) of the detection instrument (200) at an angle with respect to the axial direction of the containing kettle (100), wherein the cleaning pump (520) can guide the liquid at the bottom of the containing kettle (100) to the probe (210), and the nozzle (530) can spray the liquid to the probe (210).

5. The detection device according to claim 1, characterized in that: The test liquid circulation pipeline (300) comprises an overflow pipe (350), the overflow pipe (350) being connected to the holding kettle (100) and the test liquid pool, and the liquid in the holding kettle (100) can flow to the test liquid pool through the overflow pipe (350); the connection position of the overflow pipe (350) and the holding kettle (100) is higher than the height of the probe (210) of the detection instrument (200).

6. The detection device according to claim 1, characterized in that: The opening of the containing kettle (100) in the axial direction is detachably sealed and connected to a rotating assembly (110). The detection instrument (200) is coaxially connected to the rotating assembly (110) and can rotate around its own axis under the drive of the rotating assembly (110).

7. The detection device according to claim 1, characterized in that: The detection device further comprises an ultrasonic generator (600), and the ultrasonic generator (600) is arranged on the side of the containing kettle (100).

8. The detection device according to claim 1, characterized in that: The detection device further comprises a control module (700), and the detection instrument (200) and a part of the test liquid circulation pipeline (300) are respectively communicatively connected to the control module (700); the control module (700) is capable of controlling the connection and disconnection between the test liquid circulation pipeline (300) and the holding kettle (100), and is also capable of respectively controlling the connection and disconnection between a plurality of the liquid holding tanks and the holding kettle (100).

9. The detection device according to claim 1, characterized in that: A liquid level sensor (430) is disposed in the liquid holding tank, and the liquid level sensor (430) is configured to detect the liquid level in the liquid holding tank.

10. The detection device according to any one of claims 1 to 9, characterized in that: The detection device further comprises a device housing (800), wherein the plurality of liquid holding tanks, the holding kettle (100) and the test liquid circulation pipeline (300) are respectively arranged in the device housing (800), and a portion of the test liquid circulation pipeline (300) extends out of the device housing (800).

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