Automatic cleaning and calibrating device for water quality detection probe

Abstract

The utility model relates to an automatic cleaning and calibration device for a water quality detection probe, which comprises a rack, and a sampling pump, a first detection tank, a first water quality detection probe, a second detection tank, a second water quality detection probe, a calibration component and an electric cabinet are arranged on the rack; a first water inlet pipeline is arranged below the first detection groove, the first water inlet pipeline is communicated with the water outlet end of the sampling pump through a first three-way valve, and a first switch valve is arranged on the first water inlet pipeline; a first overflow port is formed in the inner wall of the first detection groove and is communicated with a first overflow pipeline; the first water quality detection probe is arranged in the first detection groove; the first ultrasonic vibrator is arranged on the first detection groove; the second detection groove and the first detection groove are arranged in the same way. The calibration assembly is respectively communicated with the first detection groove and the second detection groove and is used for providing calibration liquid for the first detection groove and the second detection groove; all the elements are controlled through the electric control box, and therefore automatic cleaning and calibration operation is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of water quality detection, and more specifically, to an automatic cleaning and calibration device for a water quality detection probe. Background Art

[0002] Water quality detection probes are widely used in water quality detection in various industries. Since the probes are immersed in water for a long time, impurities in the water will adhere to the probes, causing measurement errors. Therefore, it is necessary to clean and calibrate the probes regularly. At present, the cleaning and calibration of the probes are both completed manually. For some probes, due to the harsh installation and use environment, it is difficult to clean and calibrate them manually. Therefore, how to conveniently clean and calibrate the water quality detection probes is exactly the technical problem to be solved by this application. Summary of the Utility Model

[0003] Aiming at the deficiencies of the existing technology, the utility model proposes an automatic cleaning and calibration device for a water quality detection probe, which automatically cleans and calibrates the water quality detection probe through a special design of the pipeline, uses an ultrasonic device for vibration cleaning, and adopts a one-for-one standby design structure and hardware configuration to realize uninterrupted water quality detection.

[0004] The technical solution of the utility model is as follows:

[0005] An automatic cleaning and calibration device for a water quality detection probe, which includes a frame, on which a sampling pump, a first detection tank, a first water quality detection probe, a second detection tank, a second water quality detection probe, a calibration component and an electric control box are arranged;

[0006] A first water inlet pipeline is arranged below the first detection tank, and the first water inlet pipeline is communicated with the water outlet end of the sampling pump through a first three-way valve, and a first switch valve is arranged on the first water inlet pipeline;

[0007] A first overflow port is opened on the inner wall of the first detection tank, and the first overflow port is communicated with a first overflow pipeline, and the first overflow pipeline is used for discharging the liquid in the first detection tank that is higher than the first overflow port;

[0008] The first water quality detection probe is arranged in the first detection tank and is used for detecting the water quality in the first detection tank;

[0009] A first ultrasonic oscillator is arranged on the first detection tank and is used for cleaning the first detection tank;

[0010] A second water inlet pipeline is arranged below the second detection tank, and the second water inlet pipeline is communicated with the water outlet end of the sampling pump through a second three-way valve, and a second switch valve is arranged on the second water inlet pipeline;

[0011] The inner wall of the second detection tank is provided with a second overflow port, which is communicated with a second overflow pipe for discharging the liquid in the second detection tank that is higher than the second overflow port;

[0012] The second water quality detection probe is arranged in the second detection tank for detecting the water quality in the second detection tank;

[0013] The second ultrasonic oscillator is arranged on the second detection tank for cleaning the second detection tank;

[0014] The calibration assembly is communicated with the first detection tank and the second detection tank respectively for providing calibration liquid to the first detection tank and the second detection tank;

[0015] The electric control box is electrically connected to the sampling pump, the first water quality detection probe, the first three-way valve, the first switching valve, the first ultrasonic oscillator, the second water quality detection probe, the second three-way valve, the second switching valve, the second ultrasonic oscillator and the calibration assembly respectively.

[0016] In summary, the above technical solution has the following beneficial effects: In this application, each component is controlled by the electric control box to realize the operations of automatic cleaning and calibration. In addition, this application adopts a design structure and hardware configuration of one in use and one in reserve, that is, when one water quality detection probe is being cleaned, it does not affect the normal operation of the other water quality detection probe, realizing continuous water quality detection without interruption. Description of the Drawings

[0017] Figure 1 It is a schematic diagram of the housing of an automatic cleaning and calibration device for a water quality detection probe;

[0018] Figure 2 It is a schematic perspective view of an automatic cleaning and calibration device for a water quality detection probe;

[0019] Figure 3 It is a schematic cross-sectional view of an automatic cleaning and calibration device for a water quality detection probe.

[0020] Reference numerals: 10, frame; 20, sampling pump; 30, first detection tank; 31, first water inlet pipe; 32, first three-way valve; 33, first on-off valve; 34, first overflow port; 35, first overflow pipe; 36, first water removal pipe; 40, second detection tank; 41, second water inlet pipe; 42, second three-way valve; 43, second on-off valve; 44, second overflow port; 45, second overflow pipe; 46, second water removal pipe; 50, calibration assembly; 51, metering pump; 52, first calibration liquid tank; 521, first liquid extraction pipe; 522, first liquid extraction valve; 523, first liquid outlet pipe; 524, first liquid outlet valve; 53, second calibration liquid tank; 531, second liquid extraction pipe; 532, second liquid extraction valve; 533, second liquid outlet pipe; 534, second liquid outlet valve; 60, electric control box; 61, first water quality detection probe; 62, first ultrasonic oscillator; 63, second water quality detection probe; 64, second ultrasonic oscillator; 70, first cleaning pipe; 71, first cleaning valve; 80, second cleaning pipe; 81, second cleaning valve. Detailed implementation manners

[0021] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. The same components are denoted by the same reference numerals. It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the terms "bottom surface" and "top surface", "inner" and "outer" refer to the directions towards or away from the geometric center of a specific component, respectively.

[0022] As Figures 1 - 3As shown in the figure, an automatic cleaning and calibration device for a water quality detection probe includes a frame 10, on which a sampling pump 20, a first detection tank 30, a first water quality detection probe 61, a second detection tank 40, a second water quality detection probe 63, a calibration assembly 50 and an electric control box 60 are provided; a first water inlet pipe 31 is arranged below the first detection tank 30, the first water inlet pipe 31 is communicated with the water outlet end of the sampling pump 20 through a first three-way valve 32, and a first switch valve 33 is arranged on the first water inlet pipe 31; a first overflow port 34 is formed in the inner wall of the first detection tank 30, the first overflow port 34 is communicated with a first overflow pipe 35, and the first overflow pipe 35 is used for discharging the liquid in the first detection tank 30 that is higher than the first overflow port 34; the first water quality detection probe 61 is arranged in the first detection tank 30 and is used for detecting the water quality in the first detection tank 30; a first ultrasonic oscillator 62 is arranged on the first detection tank 30 and is used for cleaning the first detection tank 30; a second water inlet pipe 41 is arranged below the second detection tank 40, the second water inlet pipe 41 is communicated with the water outlet end of the sampling pump 20 through a second three-way valve 42, and a second switch valve 43 is arranged on the second water inlet pipe 41; a second overflow port 44 is formed in the inner wall of the second detection tank 40, the second overflow port 44 is communicated with a second overflow pipe 45, and the second overflow pipe 45 is used for discharging the liquid in the second detection tank 40 that is higher than the second overflow port 44; the second water quality detection probe 63 is arranged in the second detection tank 40 and is used for detecting the water quality in the second detection tank 40; a second ultrasonic oscillator 64 is arranged on the second detection tank 40 and is used for cleaning the second detection tank 40; the calibration assembly 50 is respectively communicated with the first detection tank 30 and the second detection tank 40 and is used for providing calibration liquid for the first detection tank 30 and the second detection tank 40; the electric control box 60 is respectively electrically connected with the sampling pump 20, the first water quality detection probe 61, the first three-way valve 32, the first switch valve 33, the first ultrasonic oscillator 62, the second water quality detection probe 63, the second three-way valve 42, the second switch valve 43, the second ultrasonic oscillator 64 and the calibration assembly 50. In this application, the electric control box 60 controls each component to realize the operations of automatic cleaning and calibration. In addition, this application adopts a design structure and hardware configuration of one for use and one for standby, that is, when one water quality detection probe is being cleaned, it does not affect the normal operation of the other water quality detection probe, and continuous water quality detection without interruption is realized. The electric control box 60 is configured with a PLC, a small touch screen, an ultrasonic controller and a variety of communication modules, and can be linked and controlled with external devices.

[0023] The detection process is realized through the following steps. The electric control box 60 controls the sampling pump 20 to extract the water body to be measured. By controlling the first three-way valve 32 and the second three-way valve 42, the sampling pump 20 is always connected to only one water inlet pipe. For example, when it just changes direction and is connected to the first water inlet pipe 31, the water body to be measured enters the first detection tank 30 and gradually fills up to the first overflow port 34. The excess water body to be measured flows through the first overflow pipe 35 to the wastewater ditch. The first water quality detection probe 61 is always immersed in the water body in the first detection tank 30 to continuously detect the water quality. While the second three-way valve 42 closes the connection between the second water inlet pipe 41 and the sampling pump 20, the second switch valve 43 closes the second water inlet pipe 41 to prevent the water body in the second detection tank 40 from flowing out. Then, control the second ultrasonic oscillator 64 to be energized to emit ultrasonic waves to clean the second water quality detection probe 63. After the cleaning of the second water quality detection probe 63 is completed, control the second switch valve 43 to open, and let the water body flow out through the outlet of the second three-way valve 42. After all the water body has flowed out, close the second switch valve 43, and then control the calibration assembly 50 to inject calibration liquid into the second detection tank 40 to calibrate the second water quality detection probe 63. When it is necessary to replace the water quality detection probe for detection, the two sets of detection devices can follow the above process for replacement.

[0024] The calibration assembly 50 includes a metering pump 51, a first calibration liquid tank 52, and a second calibration liquid tank 53. The first calibration liquid tank 52 is connected to the inlet of the metering pump 51 through a first liquid extraction pipe 521. The outlet of the metering pump 51 is connected to the first detection tank 30 through a first liquid outlet pipe 523. A first liquid extraction valve 522 is provided on the first liquid extraction pipe 521, and a first liquid outlet valve 524 is provided on the first liquid outlet pipe 523. The second calibration liquid tank 53 is connected to the inlet of the metering pump 51 through a second liquid extraction pipe 531. The outlet of the metering pump 51 is connected to the second detection tank 40 through a second liquid outlet pipe 533. A second liquid extraction valve 532 is provided on the second liquid extraction pipe 531, and a second liquid outlet valve 534 is provided on the second liquid outlet pipe 533. The electric control box 60 is electrically connected to the metering pump 51, the first liquid extraction valve 522, the first liquid outlet valve 524, the second liquid extraction valve 532, and the second liquid extraction valve 532 respectively. For example, when the first detection tank 30 needs to be injected with calibration liquid, control the first liquid outlet valve 524 to open and the second liquid outlet valve 534 to close. Different calibration liquids are stored in the first calibration liquid tank 52 and the second calibration liquid tank 53. When it is necessary to use the first calibration liquid in the first calibration liquid tank 52, open the first liquid extraction valve 522 and close the second liquid extraction valve 532, so that the metering pump 51 extracts a set amount of the first calibration liquid. When it is necessary to use the second calibration liquid in the second calibration liquid tank 53, open the second liquid extraction valve 532 and close the first liquid extraction valve 522, so that the metering pump 51 extracts a set amount of the second calibration liquid. When both the first calibration liquid and the second calibration liquid are needed, extract them sequentially according to the above process.

[0025] It also includes a first cleaning pipeline 70 and a second cleaning pipeline 80. A first cleaning valve 71 electrically connected to the electric control box 60 is provided on the first cleaning pipeline 70. The first cleaning pipeline 70 is communicated with the first detection tank 30 and is used to supply clean water to the first detection tank 30. A second cleaning valve 81 electrically connected to the electric control box 60 is provided on the second cleaning pipeline 80. The second cleaning pipeline 80 is communicated with the second detection tank 40 and is used to supply clean water to the second detection tank 40. The cleaning pipeline is communicated with the clean water source. After the cleaning pipeline is provided, the water quality detection probe can be cleaned with clean water. For example, when the first detection tank 30 needs to be cleaned, the first three-way valve 32 controls the closure between the first water inlet pipeline 31 and the sampling pump 20. The water body in the first detection tank 30 flows out through the outlet of the first three-way valve 32. The first switching valve 33 is controlled to close. The first cleaning pipeline 70 is controlled to inject clean water into the first detection tank 30. The first ultrasonic oscillator 62 is controlled to be energized to emit ultrasonic waves to clean the first water quality detection probe 61. Similarly, when the second water quality detection probe 63 needs to be cleaned.

[0026] The inlet of the first three-way valve 32 is communicated with the first water inlet pipeline 31, the switching port is communicated with the sampling pump 20, and the outlet is connected with a first water removal pipeline 36. The inlet of the second three-way valve 42 is communicated with the second water inlet pipeline 41, the switching port is communicated with the sampling pump 20, and the outlet is connected with a second water removal pipeline 46. The three-way valve includes one inlet and two outlets. The two outlets are respectively the outlet and the switching port. The inlet can be respectively communicated with the outlet or the switching port. The first water removal pipeline 36 and the second water removal pipeline 46 are used to discharge the water body in the detection tank when cleaning the water quality detection probe.

[0027] The first water removal pipeline 36 is communicated with the first overflow pipeline 35, and the second water removal pipeline 46 is communicated with the second overflow pipeline 45. After the water removal pipeline is communicated with the overflow pipeline, the waste water can be uniformly discharged to the waste water ditch through the overflow pipeline.

[0028] The probe end of the first water quality detection probe 61 is lower than the first overflow port 34, and the probe end of the second water quality detection probe 63 is lower than the second overflow port 44. The probe end of the water quality detection probe being lower than the overflow port can keep the probe end of the water quality detection probe immersed in the water body to detect the water body.

[0029] In summary, the advantages of this application include: 1. Through the special design of the pipeline, the water quality detection probe is automatically cleaned and calibrated. The ultrasonic device has high vibration cleaning efficiency and good effect, and there is no damage to the probe. 2. The design structure and hardware configuration of one for use and one for standby are adopted, that is, when one probe is being cleaned, it does not affect the normal operation of the other water quality probe, and continuous water quality detection without interruption is realized.

[0030] The above are only the preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited to the above embodiments. All technical solutions falling within the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that for those of ordinary skill in the art, several improvements and refinements made without departing from the principle of the present utility model should also be regarded as within the protection scope of the present utility model.

Claims

1. An automatic cleaning and calibration device for a water quality detection probe, characterized in that, It includes a machine frame (10), on which a sampling pump (20), a first detection tank (30), a first water quality detection probe (61), a second detection tank (40), a second water quality detection probe (63), a calibration component (50) and an electric control box (60) are arranged; A first water inlet pipe (31) is arranged below the first detection tank (30), and the first water inlet pipe (31) is communicated with the water outlet end of the sampling pump (20) through a first three-way valve (32), and a first switch valve (33) is arranged on the first water inlet pipe (31); A first overflow port (34) is formed in the inner wall of the first detection tank (30), and the first overflow port (34) is communicated with a first overflow pipe (35), and the first overflow pipe (35) is used for discharging the liquid in the first detection tank (30) that is higher than the first overflow port (34); The first water quality detection probe (61) is arranged in the first detection tank (30) for detecting the water quality in the first detection tank (30); A first ultrasonic oscillator (62) is arranged on the first detection tank (30) for cleaning the first detection tank (30); A second water inlet pipe (41) is arranged below the second detection tank (40), and the second water inlet pipe (41) is communicated with the water outlet end of the sampling pump (20) through a second three-way valve (42), and a second switch valve (43) is arranged on the second water inlet pipe (41); A second overflow port (44) is formed in the inner wall of the second detection tank (40), and the second overflow port (44) is communicated with a second overflow pipe (45), and the second overflow pipe (45) is used for discharging the liquid in the second detection tank (40) that is higher than the second overflow port (44); The second water quality detection probe (63) is arranged in the second detection tank (40) for detecting the water quality in the second detection tank (40); A second ultrasonic oscillator (64) is arranged on the second detection tank (40) for cleaning the second detection tank (40); The calibration component (50) is respectively communicated with the first detection tank (30) and the second detection tank (40) for providing calibration liquid for the first detection tank (30) and the second detection tank (40); The electric control box (60) is electrically connected with the sampling pump (20), the first water quality detection probe (61), the first three-way valve (32), the first switch valve (33), the first ultrasonic oscillator (62), the second water quality detection probe (63), the second three-way valve (42), the second switch valve (43), the second ultrasonic oscillator (64) and the calibration component (50) respectively.

2. The automatic cleaning and calibration device for a water quality detection probe according to claim 1, characterized in that, The calibration component (50) includes a metering pump (51), a first calibration liquid tank (52) and a second calibration liquid tank (53); The first calibration liquid tank (52) is communicated with the inlet of the metering pump (51) through a first liquid extraction pipe (521), the outlet of the metering pump (51) is communicated with the first detection tank (30) through a first liquid outlet pipe (523), a first liquid extraction valve (522) is arranged on the first liquid extraction pipe (521), and a first liquid outlet valve (524) is arranged on the first liquid outlet pipe (523); The second calibration liquid tank (53) is connected to the inlet of the metering pump (51) through a second liquid extraction pipeline (531). The outlet of the metering pump (51) is connected to the second detection tank (40) through a second liquid outlet pipeline (533). A second liquid extraction valve (532) is provided on the second liquid extraction pipeline (531), and a second liquid outlet valve (534) is provided on the second liquid outlet pipeline (533). The electric control box (60) is electrically connected to the metering pump (51), the first liquid extraction valve (522), the first liquid outlet valve (524), the second liquid extraction valve (532), and the second liquid extraction valve (532) respectively.

3. The automatic cleaning and calibration device for a water quality detection probe according to claim 1, characterized in that, It further includes a first cleaning pipeline (70) and a second cleaning pipeline (80). A first cleaning valve (71) electrically connected to the electric control box (60) is provided on the first cleaning pipeline (70). The first cleaning pipeline (70) is connected to the first detection tank (30) for supplying clean water to the first detection tank (30). A second cleaning valve (81) electrically connected to the electric control box (60) is provided on the second cleaning pipeline (80). The second cleaning pipeline (80) is connected to the second detection tank (40) for supplying clean water to the second detection tank (40).

4. An automatic cleaning and calibration device for a water quality detection probe according to claim 1, characterized in that, The inlet of the first three-way valve (32) is connected to the first water inlet pipeline (31), the switching port is connected to the sampling pump (20), and the outlet is connected to a first water removal pipeline (36). The inlet of the second three-way valve (42) is connected to the second water inlet pipeline (41), the switching port is connected to the sampling pump (20), and the outlet is connected to a second water removal pipeline (46).

5. An automatic cleaning and calibration device for a water quality detection probe according to claim 4, characterized in that, The first water removal pipeline (36) is connected to the first overflow pipeline (35), and the second water removal pipeline (46) is connected to the second overflow pipeline (45).

6. An automatic cleaning and calibration device for a water quality detection probe according to any one of claims 1-5, characterized in that, The probe end of the first water quality detection probe (61) is lower than the first overflow port (34), and the probe end of the second water quality detection probe (63) is lower than the second overflow port (44).

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