CN221199651U - Automatic maintenance device for water quality multi-parameter sensor - Google Patents

Abstract

The application discloses an automatic maintenance device for a water quality multiparameter sensor, which comprises a pipeline, a plurality of liquid storage containers, the multiparameter sensor, a sealing cover and a driving device. The pipeline comprises a first sub-pipeline and a second sub-pipeline, the multi-parameter sensor is used for detecting the water quality of the liquid to be detected, the sealing cover accommodates the multi-parameter sensor and provides a detection space for the multi-parameter sensor, and/or the multi-parameter sensor can extend out of the sealing cover to detect the external liquid to be detected; one end of the driving device is connected with the liquid storage containers in one-to-one correspondence through the first sub pipelines, the other end of the driving device is communicated with the sealing cover through the second sub pipelines, the driving device can pump liquid in the liquid storage containers into the sealing cover, and the driving device is used for calibrating, cleaning and checking the water quality sensor through the automatic maintenance device of the water quality multi-parameter sensor, so that the accuracy of the water quality sensor on water quality detection is improved, and the service life of the water quality sensor is prolonged.

Description

Automatic maintenance device for water quality multi-parameter sensor

Technical Field

The application relates to the technical field of water quality monitoring, in particular to a maintenance device for a water quality multi-parameter sensor.

Background

The water quality multi-parameter sensor is widely applied to the environment monitoring fields such as surface water quality on-line monitoring, river section early warning monitoring, river inlet drain on-line monitoring, pollution source park monitoring, intelligent agriculture breeding monitoring and the like, provides real-time accurate monitoring data for environment management, and is used for guaranteeing normal development of various production activities. During the use process of the sensor, maintenance needs to be carried out regularly to ensure the accuracy of monitoring data, and the sensor mainly comprises regular cleaning, regular checking and regular calibration.

The traditional sensor maintenance adopts a manual maintenance mode, operation and maintenance personnel regularly calibrate and check the sensor every day, and most of sensors in the market with methods such as ion selection and ultraviolet absorption are used once a week, so that drifting is large in the use process, and calibration once a week is difficult to meet actual use. Therefore, in the artificial operation process, the irreversible damage of the sensor caused by untimely cleaning of the sensor often occurs under the influence of operation and maintenance capability, quality, response time and the like, and abnormal data caused by untimely verification cannot be traced and verified; in addition, the measurement data is inaccurate due to the fact that the calibration method is not standard, and therefore the pollution condition of the detected environment cannot be accurately reflected.

Disclosure of utility model

The present application aims to solve at least one of the technical problems existing in the prior art. Therefore, the application provides an automatic maintenance device for a water quality multi-parameter sensor, which is used for calibrating, cleaning and checking the water quality sensor so as to improve the accuracy of the water quality sensor on water quality detection and prolong the service life of the water quality sensor.

According to an embodiment of the first aspect of the application, the automatic maintenance device for the water quality multi-parameter sensor comprises a pipeline, a plurality of liquid storage containers, the multi-parameter sensor, a sealing cover and a driving device. The pipeline comprises a first sub pipeline and a second sub pipeline, at least one liquid storage container in the liquid storage containers is used for storing cleaning liquid, at least one liquid storage container is used for standard liquid, the multiparameter sensor is used for detecting water quality of liquid to be detected, the sealing cover accommodates the multiparameter sensor and provides detection space for the multiparameter sensor, and/or the multiparameter sensor can extend out of the sealing cover to detect external liquid to be detected, one end of the driving device is connected with the liquid storage containers in a one-to-one correspondence mode through the first sub pipeline, the other end of the driving device is communicated with the sealing cover through the second sub pipeline, and the driving device can pump liquid in the liquid storage containers into the sealing cover.

According to the automatic maintenance device for the water quality multiparameter sensor, one end of the driving device is connected with the plurality of liquid storage containers through the plurality of first sub pipelines, the other end of the driving device is connected with the sealing cover through the second sub pipelines, the multiparameter sensor is arranged in the sealing cover, liquid to be detected in the liquid storage container is injected into the sealing cover through the driving device, liquid to be detected is detected through the multiparameter sensor, cleaning liquid in the liquid storage container is injected into the sealing cover through the driving device, the multiparameter sensor is cleaned through the cleaning liquid, purified water in the liquid storage container is also injected into the sealing cover through the driving device, the purified water is detected through the multiparameter sensor, so that the multiparameter sensor can be calibrated and checked by itself, and after the water quality sensor is cleaned or calibrated or checked, the liquid in the sealing cover is pumped out through the driving device and is pumped into the liquid storage container. The automatic maintenance device for the water quality sensor is used for calibrating, cleaning and checking the water quality sensor, so that the accuracy of the water quality sensor on water quality detection is improved, and the service life of the water quality sensor is prolonged.

In some embodiments, the automatic maintenance device for the water quality multi-parameter sensor further comprises an air pump, wherein the pipeline comprises a third sub-pipeline, and the air pump is communicated with the sealing cover through the third sub-pipeline and the second sub-pipeline and is used for introducing air into the sealing cover.

In some embodiments, the automatic maintenance device for water quality multiparameter sensor further comprises a pneumatic part, wherein one end of the pneumatic part is connected with the air pump, and the other end of the pneumatic part is connected with the multiparameter sensor and is used for driving the multiparameter sensor to move along a first direction so that the multiparameter sensor extends out of the sealing cover to detect external liquid to be detected.

In some embodiments, the pneumatic part comprises an air bag and a connecting rod, the connecting rod is arranged along the first direction, one end of the connecting rod is connected with the multi-parameter sensor, the other end of the connecting rod is connected with the air bag, and the air bag can drive the connecting rod to move through the volume change of inflation and deflation so that the multi-parameter sensor extends out of the sealing cover.

In some embodiments, the pneumatic part further comprises a pneumatic telescopic device, the pneumatic telescopic device and the air bag are arranged along the first direction, the pneumatic telescopic device and one end of the connecting rod, which is far away from the multi-parameter sensor, are connected, and the pneumatic telescopic device can drive the connecting rod to move so that the multi-parameter sensor extends out of the sealing cover.

In some embodiments, the automatic maintenance device for water quality multi-parameter sensor further comprises an air pump and a second three-way valve, the pipeline further comprises a fourth sub-pipeline, a fifth sub-pipeline and a sixth sub-pipeline, the first end of the second three-way valve is connected with the air pump through the fourth sub-pipeline, the second end of the second three-way valve is connected with the air bag through the fifth sub-pipeline, and the third end of the second three-way valve is connected with the pneumatic telescoping device through the sixth sub-pipeline.

In some embodiments, the automatic maintenance device for water quality multi-parameter sensor further comprises a speed valve, wherein the speed valve is arranged on the fifth sub-pipeline and the sixth sub-pipeline.

In some embodiments, the pipeline comprises a third sub-pipeline, and the air pump is communicated with the air bag and the air bag through the third sub-pipeline and the second sub-pipeline, and is used for introducing air into the sealing cover.

In some embodiments, the automatic maintenance device for water quality multi-parameter sensor further comprises a first three-way valve, wherein a first end of the first three-way valve is connected with the sealing cover through the second sub-pipeline, a second end of the first three-way valve is connected with the peristaltic pump through the first sub-pipeline, and a third end of the first three-way valve is connected with the air pump through the third sub-pipeline.

In some embodiments, the automatic maintenance device for the water quality multi-parameter sensor further comprises a speed regulating valve and a pressure reducing valve, wherein the speed regulating valve and the pressure reducing valve are arranged on the third sub-pipeline.

In some embodiments, the automatic maintenance device for water quality multi-parameter sensor further includes a plurality of discharge valves, the plurality of discharge valves are arranged in one-to-one correspondence with the plurality of liquid storage containers, and the plurality of discharge valves are connected to the first sub-pipelines and are used for controlling the on-off of the first sub-pipelines connected to the corresponding liquid storage containers.

In some embodiments, the drive means is for drawing liquid within the sealed enclosure into a reservoir, and at least one of the reservoirs is for storing waste liquid.

Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.

Drawings

The application is further described with reference to the accompanying drawings and examples, in which:

Fig. 1 is a schematic diagram of an automatic maintenance device for a water quality multi-parameter sensor according to an embodiment of the first aspect of the present application.

Fig. 2 is a schematic structural view of a pneumatic part according to another embodiment.

Reference numerals: the automatic maintenance device 1 for the water quality multi-parameter sensor comprises a pipeline 10, a first sub pipeline 11, a second sub pipeline 12, a third sub pipeline 13, a fourth sub pipeline 14, a fifth sub pipeline 15, a sixth sub pipeline 16, a speed regulating valve 17, a pressure reducing valve 18, an air valve 19, a check valve 191, a liquid storage container 20, a multi-parameter sensor 30, a sealing cover 40, an opening 41, a liquid level sensor 42, a driving device 50, an air pump 60, a first three-way valve 70, a pneumatic part 80, an air bag 81, a connecting rod 82, a pneumatic telescopic device 83, a second three-way valve 90 and a first direction X.

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the application.

In the description of the present application, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present application and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.

In the description of the present application, the meaning of a number is one or more, the meaning of a number is two or more, and greater than, less than, exceeding, etc. are understood to exclude the present number, and the meaning of a number is understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present application, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present application can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

In the description of the present application, the descriptions of the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Fig. 1 is a schematic diagram of an automatic maintenance device for a water quality multi-parameter sensor according to an embodiment of the first aspect of the present application.

An embodiment of the first aspect of the present application provides an automatic maintenance device 1 for a water quality multi-parameter sensor, which comprises a pipeline 10, a plurality of liquid storage containers 20, a multi-parameter sensor 30, a sealing cover 40 and a driving device 50. The line 10 comprises a first sub-line 11 and a second sub-line 12. At least one reservoir 20 is used for storing a cleaning liquid and at least one reservoir 20 is used for storing a standard liquid. The multi-parameter sensor 30 is used for detecting the water quality of the liquid to be detected, the sealing cover 40 accommodates the multi-parameter sensor 30 and provides a detection space for the multi-parameter sensor 30, and/or the multi-parameter sensor 30 can protrude from the sealing cover 40 to detect the liquid to be detected outside. One end of the driving device 50 is connected with the plurality of liquid storage containers 20 in a one-to-one correspondence manner through the plurality of first sub-pipelines 11, and the other end of the driving device 50 is communicated with the sealing cover 40 through the second sub-pipelines 12, so that the driving device 50 can pump the liquid in the liquid storage containers 20 into the sealing cover 40 and pump the liquid in the sealing cover 40 into the liquid storage containers 20.

Specifically, in some embodiments, at least one reservoir 20 of the plurality of reservoirs 20 may be used to store a liquid to be tested.

Specifically, in some embodiments, the drive device 50 is configured to draw fluid within the sealed enclosure 40 into the reservoir 20, and at least one reservoir 20 of the plurality of reservoirs 20 may be configured to store waste fluid.

Specifically, in some embodiments, the detection index parameter of the multi-parameter sensor 30 may be PH, dissolved oxygen, turbidity, conductivity, COD, ammonia nitrogen, etc.

Specifically, in some embodiments, the automatic water quality multi-parameter sensor maintenance device 1 may be placed in the liquid to be measured, and the multi-parameter sensor 30 may be protruded from the sealing cover 40, so that the multi-parameter sensor 30 may detect the liquid to be measured.

Specifically, in some embodiments, at least one liquid storage container 20 of the plurality of liquid storage containers 20 may be used to store the liquid to be tested, and the liquid to be tested may be conveyed into the sealed cover 40 and detected by the multi-parameter sensor 30.

Specifically, in some embodiments, the outer wall of the seal cap 40 may be a titanium alloy sheath, and the inner wall of the seal cap 40 may be composed of a titanium alloy and a silicone gasket.

Specifically, in some embodiments, the tubing 10 may be a water tube, preferably using Teflon water tubing that is acid and alkali resistant without precipitation.

Specifically, in some embodiments, the reservoir 20 may be a reservoir bottle.

Specifically, in some embodiments, the reservoir 20 may also contain clear water for calibration checking the multi-parameter sensor 30.

Specifically, in some embodiments, the driving device 50 may be rotated forward to draw the liquid in the liquid storage container 20 into the sealing cover 40 through the first sub-pipeline 11 via the second sub-pipeline 12, and the driving device 50 may be rotated backward to draw the liquid in the sealing cover 40 into the liquid storage container 20 through the second sub-pipeline 12 via the first sub-pipeline 11.

Specifically, in some embodiments, the plurality of first sub-circuits 11 are connected to the plurality of liquid storage containers 20 in a one-to-one correspondence, and the plurality of first sub-circuits 11 may be collected in another circuit 10, and connected to the driving device 50 through the circuit 10.

Specifically, in some embodiments, the seal housing 40 may be provided with a liquid level sensor 42 to monitor the liquid level within the seal housing 40, enabling the multi-parameter sensor 30 to better detect, calibrate and clean.

Specifically, in some embodiments, the liquid within the sealed enclosure 40 may also be drawn out of the water pipe through other openings.

Specifically, in some embodiments, the automatic water quality multi-parameter sensor maintenance device 1 further includes a main control unit, and the main control unit is electrically connected to the automatic water quality multi-parameter sensor maintenance device 1 and is used for controlling the automatic operation and maintenance of the automatic water quality multi-parameter sensor maintenance device 1. The main control unit can be a control console and can also be other devices for controlling automatic work and maintenance.

According to the automatic maintenance device 1 for the water quality multi-parameter sensor, disclosed by the embodiment of the application, one end of a driving device 50 is connected with a plurality of liquid storage containers 20 through a plurality of first sub-pipelines 11, the other end of the driving device is connected with a sealing cover 40 through a second sub-pipeline 12, a multi-parameter sensor 30 is arranged in the sealing cover 40, a main control unit controls the driving device 50 through a preset program to inject liquid to be detected in the liquid storage containers 20 into the sealing cover 40, and at the moment, the main control unit controls the multi-parameter sensor 30 to detect the liquid to be detected, and controls the driving device 50 to inject cleaning liquid in the liquid storage containers 20 into the sealing cover 40, so that the multi-parameter sensor 30 is automatically cleaned through the cleaning liquid; the purified water in the liquid storage container 20 can be injected into the sealing cover 40 through the driving device 50, and after the purified water is injected into the sealing cover 40, the multi-parameter sensor 30 is automatically cleaned through the purified water; secondly, the purified water can be detected by the multi-parameter sensor 30 to calibrate and check the multi-parameter sensor 30, and after the water quality sensor is cleaned or calibrated and checked or detected, the main control unit pumps the liquid in the sealing cover 40 out and pumps the liquid into the liquid storage container 20 by controlling the driving device 50. The automatic maintenance device 1 for the water quality sensor is used for calibrating, cleaning and checking the water quality sensor, so that the accuracy of the water quality sensor on water quality detection is improved, and the service life of the water quality sensor is prolonged.

Specifically, in some embodiments, the automatic maintenance device for water quality multi-parameter sensor 1 further includes a pneumatic part 80, one end of the pneumatic part 80 is connected to the air pump 60, and the other end is connected to the multi-parameter sensor 30, so as to drive the multi-parameter sensor 30 to move along the first direction X, so that the multi-parameter sensor 30 protrudes from the sealing cover 40 to detect the external liquid to be tested.

Specifically, in some embodiments, the drive device 50 may be a peristaltic pump.

Specifically, in some embodiments, the first direction X may be represented by a direction indicated by the letter X.

Specifically, in some embodiments, the first direction X may be a direction of gravity.

By arranging the pneumatic part 80, the air pump 60 is used for controlling the pneumatic part 80 to enter and exhaust so as to drive the multi-parameter sensor 30 to move along the first direction X, and the multi-parameter sensor 30 can be moved when the liquid is insufficient, so that the multi-parameter sensor 30 is fully contacted with the liquid, and the applicability of the multi-parameter sensor 30 is improved.

Specifically, in some embodiments, the pneumatic part 80 includes an air bag 81 and a connecting rod 82, the connecting rod 82 is disposed along the first direction X, one end of the connecting rod 82 is connected to the multi-parameter sensor 30, the other end is connected to the air bag 81, the air bag 81 is connected to the air pump 60, and the air bag 81 can move by changing the volume of the inflation and deflation to drive the connecting rod 82 to extend the multi-parameter sensor from the sealing cover.

Specifically, in some embodiments, the pneumatic section 80 may be disposed above the multi-parameter sensor 30 in the first direction X. The pneumatic part 80 includes an air bag 81, the air bag 81 is connected to the air pump 60, one end of a connecting rod 82 is connected to the multiparameter sensor 30, and the other end is connected to the air bag 81. When the air pump 60 inputs air into the air bag 81, the air bag 81 expands to drive the connecting rod 82 to move downwards along the first direction X, so that the multi-parameter sensor 30 moves downwards along the first direction X. When the air pump 60 pumps air to the air bag 81, the air bag 81 contracts to drive the connecting rod 82 to move upwards along the first direction X, so that the multi-parameter sensor 30 moves upwards along the first direction X. By the change of the outer contour size of the airbag 81, the small-range movement of the multi-parameter sensor 30 in the first direction X is realized, and the convenience of the movement of the multi-parameter sensor 30 is improved.

Specifically, in some embodiments, the pneumatic section 80 further includes a pneumatic telescoping device 83, the pneumatic telescoping device 83 is disposed along the first direction X with the air bag 81, the pneumatic telescoping device 83 is connected with an end of the connecting rod 82 away from the multi-parameter sensor 30, and the pneumatic telescoping device 83 is connected with the air pump 60, and the pneumatic telescoping device 83 can drive the connecting rod 82 to move so that the multi-parameter sensor protrudes from the sealing cover.

Specifically, in some embodiments, the air pump 60 is used to pump air and exhaust air from the pneumatic telescopic device 83, so that the pneumatic telescopic device 83 drives the connecting rod 82 to realize a large-scale movement of the multi-parameter sensor 30 along the first direction X, thereby improving the convenience of movement of the multi-parameter sensor 30.

Specifically, in some embodiments, the air bag 81 is located above the air-operated telescopic device 83 in the first direction X, and when the air-operated telescopic device 83 is not used, the outer contour of the air bag 81 changes, so as to drive the air-operated telescopic device 83 to displace, and thus drive the connecting rod 82 to move.

Referring to fig. 2, fig. 2 is a schematic structural diagram of a pneumatic section 80 according to another embodiment. The pneumatic part 80 and the multi-parameter sensor 30 are not located on the same plane in the first direction X, the air bag 81 and the pneumatic telescopic device 83 of the pneumatic part 80 are connected with the connecting rod 82 through an L-shaped connecting piece, and the air bag 81 and the pneumatic telescopic device 83 can drive the L-shaped connecting piece to move along the first direction X, so that the connecting rod 82 is driven to move along the first direction X through the connecting piece, and the multi-parameter sensor 30 extends and retracts from the sealing cover 40.

Specifically, in some embodiments, the automatic maintenance device 1 for water quality multi-parameter sensor further includes an air pump 60 and a second three-way valve 90, the pipeline 10 further includes a fourth sub-pipeline 14, a fifth sub-pipeline 15 and a sixth sub-pipeline 16, a first end of the second three-way valve 90 is connected to the air pump 60 through the fourth sub-pipeline 14, a second end of the second three-way valve 90 is connected to the air bag 81 through the fifth sub-pipeline 15, and a third end of the second three-way valve 90 is connected to the pneumatic telescoping device 83 through the sixth sub-pipeline 16.

Specifically, in some embodiments, the automatic maintenance device for water quality multi-parameter sensor 1 further includes a speed valve 17, where the speed valve 17 is disposed on the fifth sub-line 15 and the sixth sub-line 16.

Specifically, in some embodiments, the speed control valve 17 is disposed between the fifth sub-pipeline 15 and the sixth sub-pipeline 16, that is, the speed control valve 17 is disposed between the second three-way valve 90 and the air bag 81, and between the second three-way valve 90 and the pneumatic telescoping device 83, and by disposing the speed control valve 17, the gas flow rates of the air bag 81 and the pneumatic telescoping device 83 are controlled, so that on one hand, the movement speed of the connecting rod 82, that is, the movement speed of the multi-parameter sensor 30 is convenient to control, and on the other hand, the risk that the air bag 81 or the pneumatic telescoping device 83 is damaged due to too fast gas flow rate can be reduced.

Specifically, in some embodiments, the automatic maintenance device for water quality multi-parameter sensor 1 further includes a speed valve 17 and a pressure reducing valve 18, where the speed valve 17 and the pressure reducing valve 18 are disposed in the third sub-pipeline 13.

Specifically, in some embodiments, the line 10 includes a third sub-line 13 and the air pump 60 communicates with the seal housing 40 through the third sub-line 13 and the second sub-line 12 for introducing air into the seal housing 40.

Specifically, in some embodiments, the air pump 60 pumps air, which is injected into the sealed enclosure 40 through the third sub-line 13 via the second sub-line 12.

Specifically, in some embodiments, the pressure of the air pump 60 may be greater than or equal to 0.6mpa.

Specifically, in some embodiments, when the multi-parameter sensor 30 is cleaned, the peristaltic pump 50 is used to pump the cleaning liquid into the sealed cover 40, and then the air pump 60 may be used to pump the air into the sealed cover 40, so that the cleaning liquid is fully contacted with the sensor through the impact of the air, and the cleaning liquid is driven by the air flow to reciprocate up and down along the inner space structure of the sealed cover 40, so that the sediment attached to the multi-parameter sensor 30 is separated, and the cleaning effect of the multi-parameter sensor 30 is improved.

Specifically, in some embodiments, the sealing cap 40 may be provided with an opening 41 for exhausting the gas, and after the cleaning is completed, the opening 41 is opened to exhaust the gas.

Specifically, in some embodiments, the automatic maintenance device for water quality multi-parameter sensor 1 further includes a first three-way valve 70, a first end of the first three-way valve 70 is connected to the sealing cover 40 through the second sub-pipeline 12, a second end of the first three-way valve 70 is connected to the peristaltic pump 50 through the first sub-pipeline 11, and a third end of the first three-way valve 70 is connected to the air pump 60 through the third sub-pipeline 13.

By arranging the first three-way valve 70, the third sub-pipeline 13 connected with the air pump 60 and the first sub-pipeline 11 connected with the liquid storage container 20 are collected on the second sub-pipeline 12, so that the inlets of air inlet and liquid outlet of the sealing cover 40 are collected at one position, on one hand, space arrangement is facilitated, on the other hand, the inlets are reduced, and the sealing performance of the sealing cover 40 is improved.

Specifically, in some embodiments, the connection between the second sub-pipeline 12 and the sealing cover 40 may be a lower end of the sealing cover 40, where the lower end is configured to facilitate drainage, and enable the gas to better contact with the liquid when the sealing cover 40 is in the air.

Specifically, in some embodiments, the speed regulating valve 17 and the pressure reducing valve 18 are disposed on the third sub-pipeline 13, that is, between the air pump 60 and the first three-way valve 70, the speed regulating valve 17 and the pressure reducing valve 18 are disposed on the third sub-pipeline 13 in a serial manner, so that the flow rate and the pressure of the gas can be regulated, and the risk that the third sub-pipeline 13, the second sub-pipeline 12 and the sealing cover 40 are damaged due to too high gas flow rate or too high pressure is reduced.

Specifically, in some embodiments, the third sub-pipeline 13 may further be provided with a gas valve 19 and a check valve 191, that is, between the gas pump 60 and the first three-way valve 70, and the gas valve 19 and the check valve 191 are provided, where the gas valve 19 is used to control the on-off of the gas pump 60 and the third sub-pipeline 13, and the check valve 191 is a one-way valve, and only allows gas to flow from the third sub-pipeline 13 to the first three-way valve 70, and does not allow gas to flow from the third sub-pipeline 13 to the gas pump 60.

Specifically, in some embodiments, the automatic maintenance device 1 for water quality multi-parameter sensor further includes a plurality of discharge valves, where the plurality of discharge valves are disposed in one-to-one correspondence with the plurality of liquid storage containers 20, and each of the plurality of discharge valves is connected to the first sub-pipeline 11 and is used for controlling on-off of the first sub-pipeline 11 connected to the corresponding liquid storage container 20.

Specifically, in some embodiments, each liquid storage container 20 corresponds to a drain valve, when a certain liquid storage container 20 needs to be used, for example, liquid is pumped out or liquid is pumped in, the drain valve corresponding to the liquid storage container 20 is opened, and at this time, the drain corresponding to the other liquid storage containers 20 is opened, so that the accuracy of liquid pumping and draining is realized.

The embodiments of the present application have been described in detail with reference to the accompanying drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present application. Furthermore, embodiments of the application and features of the embodiments may be combined with each other without conflict.

Claims (11)

1. An automatic maintenance device for a water quality multiparameter sensor, comprising:

A pipeline (10) comprising a first sub-pipeline (11) and a second sub-pipeline (12);

A plurality of reservoir containers (20), at least one of said reservoir containers (20) for storing a cleaning liquid and at least one of said reservoir containers (20) for storing a standard liquid;

a multi-parameter sensor (30) for detecting an index parameter of the liquid to be measured;

A sealing cap (40) accommodating the multiparameter sensor (30) and providing a detection space for the multiparameter sensor (30), and/or the multiparameter sensor (30) being capable of protruding from the sealing cap (40) for detecting an external liquid to be detected;

The driving device (50) is characterized in that one end of the driving device (50) is connected with a plurality of liquid storage containers (20) in a one-to-one correspondence manner through a plurality of first sub pipelines (11), the other end of the driving device (50) is communicated with the sealing cover (40) through a second sub pipeline (12), and the driving device (50) can pump liquid in the liquid storage containers (20) into the sealing cover (40).

2. The automatic maintenance device for a water quality multi-parameter sensor according to claim 1, further comprising a pneumatic part (80), wherein one end of the pneumatic part (80) is connected with the air pump (60), and the other end of the pneumatic part is connected with the multi-parameter sensor (30) and is used for driving the multi-parameter sensor (30) to move along a first direction (X) so that the multi-parameter sensor (30) extends out of the sealing cover (40) to detect external liquid to be detected.

3. The automatic maintenance device for a water quality multi-parameter sensor according to claim 2, wherein the pneumatic part (80) comprises an air bag (81) and a connecting rod (82), the connecting rod (82) is arranged along the first direction (X), one end of the connecting rod (82) is connected with the multi-parameter sensor (30), the other end of the connecting rod is connected with the air bag (81), and the air bag (81) can drive the connecting rod (82) to move through the volume change of inflation and deflation so that the multi-parameter sensor (30) stretches out of the sealing cover (40).

4. A water quality multi-parameter sensor automatic maintenance device according to claim 3, characterized in that the pneumatic part (80) further comprises a pneumatic telescopic device (83), the pneumatic telescopic device (83) and the air bag (81) are arranged along the first direction (X), the pneumatic telescopic device (83) is connected with one end of the connecting rod (82) far away from the multi-parameter sensor (30), and the pneumatic telescopic device (83) can drive the connecting rod (82) to move so that the multi-parameter sensor (30) extends out of the sealing cover (40).

5. The automatic maintenance device for a water quality multi-parameter sensor according to claim 4, further comprising an air pump (60) and a second three-way valve (90), wherein the pipeline (10) further comprises a fourth sub-pipeline (14), a fifth sub-pipeline (15) and a sixth sub-pipeline (16), a first end of the second three-way valve (90) is connected with the air pump (60) through the fourth sub-pipeline (14), a second end of the second three-way valve (90) is connected with the air bag (81) through the fifth sub-pipeline (15), and a third end of the second three-way valve (90) is connected with the pneumatic telescoping device (83) through the sixth sub-pipeline (16).

6. The automatic maintenance device for a water quality multi-parameter sensor according to claim 5, further comprising a speed valve (17), wherein the speed valve (17) is provided to the fifth sub-line (15) and the sixth sub-line (16).

7. The automatic maintenance device for water quality multi-parameter sensors according to claim 1, wherein said pipeline (10) comprises a third sub-pipeline (13), and said air pump (60) is in communication with said air bag (81) through said third sub-pipeline (13) and said second sub-pipeline (12) for introducing air into said sealed enclosure (40).

8. The automatic maintenance device for a water quality multi-parameter sensor according to claim 7, further comprising a first three-way valve (70), wherein a first end of the first three-way valve (70) is connected to the sealing cover (40) through the second sub-pipe (12), a second end of the first three-way valve (70) is connected to the peristaltic pump (50) through the first sub-pipe (11), and a third end of the first three-way valve (70) is connected to the air pump (60) through the third sub-pipe (13).

9. The automatic maintenance device for a water quality multi-parameter sensor according to claim 2, further comprising a speed valve (17) and a pressure reducing valve (18), wherein the speed valve (17) and the pressure reducing valve (18) are provided in the third sub-pipeline (13).

10. The automatic maintenance device for a water quality multi-parameter sensor according to claim 1, further comprising a plurality of discharge valves, wherein the discharge valves are arranged in one-to-one correspondence with the liquid storage containers (20), and the discharge valves are connected to the first sub-pipelines (11) and are used for controlling the on-off of the first sub-pipelines (11) connected to the corresponding liquid storage containers (20).

11. The automatic maintenance device for water quality multi-parameter sensors according to claim 1, wherein the driving means (50) is configured to draw the liquid in the sealed cover (40) into the liquid storage container (20), and at least one of the liquid storage containers (20) is configured to store the waste liquid.