Automatic probe cleaning system

Abstract

The utility model discloses an automatic probe cleaning system, which relates to the technical field of water quality detection, and comprises a three-way stop valve, a liquid inlet port of the three-way stop valve is connected with a liquid inlet pipe, two liquid outlet ports of the three-way stop valve are respectively connected with a cleaning pipe and a detection pipe, the detection pipe is connected with a plurality of four-way pipes in series, and the four-way pipes are respectively connected with the cleaning pipe and the detection pipe. The other two corresponding pipe openings of the four-way pipe are connected with a flushing pipe and a sensor respectively. The end, away from the four-way pipe, of the flushing pipe is connected with a cleaning pipe. And the detection tube is connected with a dosing tube. According to the automatic probe cleaning system, the flow velocity and pressure difference is formed through pipeline reducing, and the surface of a sensor can be physically washed; the surface of the sensor can be chemically cleaned by adding cleaning liquid into the detection tube; physical washing and chemical washing are combined, so that the washing effect is ensured, and stable operation of the sensor can be ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to water quality detection technical field, concretely is a kind of probe automatic cleaning system. BACKGROUND

[0002] At present, the market size of industrial circulating water application intelligent control detection and dosing equipment is huge, and equipment manufacturers are thriving, but due to the diversity of industrial circulating water scene and the complexity of the situation, the core detection unit sensor is precise and sensitive, and in the field of poor industrial circulating water system environment and poor water quality, dirt adheres to the sensor probe, which has a great influence on the stability and accuracy of detection. Currently, filtering and backwashing devices are added in the pipeline to reduce the influence of dirt on the sensor, but the effect is limited, and the sensor still needs to be disassembled and cleaned regularly.

[0003] Therefore, it is necessary to provide a probe automatic cleaning system to solve the above problems. INVENTION CONTENTS

[0004] (I) Technical problem solved

[0005] The utility model aims at providing a probe automatic cleaning system to solve the problems raised in the above background technology.

[0006] (II) Technical scheme

[0007] To achieve the above purpose, the utility model is implemented by the following technical scheme: a probe automatic cleaning system, comprising a three-way stop valve, the liquid inlet port of the three-way stop valve is connected with a liquid inlet pipe, two liquid outlet ports of the three-way stop valve are connected with a cleaning pipe and a detection pipe respectively, a plurality of four-way pipes are connected in series on the detection pipe, the other two corresponding pipe openings of the four-way pipe are connected with a flushing pipe and a sensor respectively, and the end of the flushing pipe away from the four-way pipe is connected with the cleaning pipe.

[0008] The detection pipe is connected with a dosing pipe.

[0009] Preferably, the diameters of the cleaning pipe, the detection pipe and the liquid inlet pipe are greater than the diameter of the flushing pipe.

[0010] Preferably, the connection position of the flushing pipe and the four-way pipe corresponds to the position of the sensor probe.

[0011] Preferably, the liquid outlet ends of the dosing pipe and the detection pipe are provided with liquid valves.

[0012] Preferably, the liquid inlet end of the detection pipe is provided with a check valve.

[0013] Preferably, it further comprises a controller, the three-way stop valve and the liquid valve are both electric valves, and the three-way stop valve and the liquid valve are connected with the controller.

[0014] (3) Beneficial effects

[0015] Compared with the existing technology, the present invention provides an automatic probe cleaning system with the following beneficial effects:

[0016] The automatic probe cleaning system can physically flush the sensor surface by creating flow rate and pressure differences through pipe diameter changes; it can chemically clean the sensor surface by adding cleaning fluid to the detection tube; the physical and chemical cleaning removes mud and scale attached to the sensor surface, improving the cleaning effect and ensuring stable operation of the sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main view of the structure of the present utility model.

[0018] In the figure: 1. Four-way pipe; 2. Flushing pipe; 3. Cleaning pipe; 4. Detection pipe; 5. Three-way stop valve; 6. Dosing pipe; 7. Sensor; 8. Liquid inlet pipe; 9. One-way valve. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] See also Figure 1 As shown, a probe automatic cleaning system includes a three-way stop valve 5, the liquid inlet port of the three-way stop valve 5 is connected to the liquid inlet pipe 8, the two liquid outlet ports of the three-way stop valve 5 are respectively connected to the cleaning pipe 3 and the detection pipe 4, a plurality of four-way pipes 1 are connected in series on the detection pipe 4, and the other two corresponding pipe openings of the four-way pipe 1 are respectively connected to the flushing pipe 2 and the sensor 7, and the end of the flushing pipe 2 away from the four-way pipe 1 is connected to the cleaning pipe 3; the detection pipe 4 is connected to the dosing pipe 6.

[0021] During normal operation, the detection tube 4 is connected to the liquid inlet pipe 8 through the three-way stop valve 5, and the liquid enters the detection tube 4 through the liquid inlet pipe 8, and the liquid is detected by the sensor 7;

[0022] When the sensor 7 needs to be flushed, the detection tube 4 is connected to the cleaning tube 3 through the three-way stop valve 5, and the liquid enters the cleaning tube 3 through the liquid inlet pipe 8, and then enters the cross-tube 1 through the flushing pipe 2 to flush the sensor 7;

[0023] When chemical cleaning of the sensor 7 is required, the liquid inlet pipe 8 is shut off through the three-way stop valve 5, and a cleaning agent is fed into the detection tube 4 through the dosing pipe 6 to chemically clean the sensor 7 probe. The cleaning agent is selected according to the specific type of dirt.

[0024] In order to improve the flushing effect, the diameters of the cleaning pipe 3, the detecting pipe 4 and the liquid inlet pipe 8 are all larger than the diameter of the flushing pipe 2. By setting the flushing pipe 2 with a smaller diameter, the pressure and flow rate of the liquid are increased, and the water flow is concentrated to high-pressure flush the surface of the sensor 7 to ensure the flushing effect.

[0025] In order to further improve the flushing effect, the connection position of the flushing pipe 2 and the four-way pipe 1 corresponds to the probe position of the sensor 7. The water flow transported by the flushing pipe 2 is accurately flushed to the probe of the sensor 7, so as to further improve the flushing effect.

[0026] In some embodiments, the liquid outlet ends of the dosing pipe 6 and the detecting pipe 4 are both provided with liquid valves. By setting the liquid valve at the liquid outlet end of the dosing pipe 6, the liquid is prevented from flowing out through the dosing pipe 6 during normal operation and flushing. By setting the liquid valve at the liquid outlet end of the detecting pipe 4, the liquid valve is closed during chemical cleaning, so that the cleaning agent remains in the detecting pipe 4 to clean the sensor 7, and after the cleaning is completed, the valve is opened to discharge the cleaning agent.

[0027] In order to avoid liquid backflow, the liquid inlet end of the detecting pipe 4 is provided with a one-way valve 9.

[0028] In order to realize automatic control, a controller is further included, the three-way stop valve 5 and the liquid valve are both electric valves, and the three-way stop valve 5 and the liquid valve are connected with the controller. The start and stop intervals of the three-way stop valve 5 and the liquid valve are preset according to the actual demand frequency of physical flushing and chemical cleaning, so as to realize automatic control of the whole process. The controller is a PLC controller.

[0029] It should be noted that the use of the device also needs to consider the pipeline pressure and liquid flow. In order to ensure the use effect, the pipeline pressure should not be less than 0.1 Mpa, and the flow rate should not be less than 1 m³ / h.

[0030] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A probe automatic cleaning system, characterized by: It comprises a three-way stop valve (5), the liquid inlet port of the three-way stop valve (5) is connected to a liquid inlet pipe (8), the two liquid outlet ports of the three-way stop valve (5) are respectively connected to a cleaning pipe (3) and a detection pipe (4), the detection pipe (4) is connected in series with a plurality of four-way pipes (1), the other two corresponding pipe openings of the four-way pipe (1) are respectively connected to a flushing pipe (2) and a sensor (7), and the end of the flushing pipe (2) away from the four-way pipe (1) is connected to the cleaning pipe (3); The detection tube (4) is connected to a drug adding tube (6).

2. The automatic probe cleaning system according to claim 1, characterized in that: The diameters of the cleaning tube (3), the detection tube (4) and the liquid inlet tube (8) are all larger than the diameter of the flushing tube (2).

3. The automatic probe cleaning system according to claim 1, characterized in that: The connection position of the flushing pipe (2) and the four-way pipe (1) corresponds to the position of the sensor (7) probe.

4. The automatic probe cleaning system according to claim 1, characterized in that: Liquid valves are provided at the liquid outlet ends of the dosing tube (6) and the detection tube (4).

5. The automatic probe cleaning system according to claim 1, characterized in that: A one-way valve (9) is provided at the liquid inlet end of the detection tube (4).

6. The automatic probe cleaning system according to claim 1, characterized in that: It also includes a controller, the three-way stop valve (5) and the liquid valve are both electric valves, and the three-way stop valve (5) and the liquid valve are both connected to the controller.

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