Automatic cleaning device for conductance meter

Abstract

The utility model belongs to the technical field of automatic cleaning of electric conductivity instrument, concretely relates to an automatic cleaning device of electric conductivity instrument, including main pipe, one side of main pipe is fixedly connected with branch pipe, the water inlet of branch pipe is provided with electromagnetic valve C, the water outlet of branch pipe is provided with electromagnetic valve D, the middle part pipe wall of branch pipe is embedded with electric conductivity instrument, electric conductivity instrument sets up between electromagnetic valve D and electromagnetic valve C, the outside of branch pipe is provided with cleaning device, and the both ends of cleaning device are provided with electromagnetic valve A and electromagnetic valve B respectively, still include control cabinet, be provided with air switch and contactor in control cabinet, the switch of electromagnetic valve A, electromagnetic valve B and water pump is controlled through the normally open contact of contactor, the switch of electromagnetic valve C and electromagnetic valve D is controlled through the normally closed contact of contactor, the utility model discloses a simple mechanical structure has realized high -efficient cleaning, has reduced the dismounting cost, has improved the life of electric conductivity instrument, has reduced electric conductivity instrument dismounting frequency.

Description

Technical Field

[0001] This utility model belongs to the field of automatic cleaning technology for conductivity meters, and specifically relates to an automatic cleaning device for conductivity meters. Background Technology

[0002] Conductivity meters are mainly used for detecting condensate. Evaporation is a crucial step in the alumina production process. The principle is that the mother liquor is collected and fed into an evaporator. As the temperature rises, the water in the mother liquor gradually evaporates into steam, which is discharged from the top of the evaporator. The steam is then cooled back into water by a condenser for recycling.

[0003] The conductivity meter is installed on the condensate return water pipe to detect the conductivity of the condensate return water, and is usually interlocked with the switching valve. If the return water conductivity is below 20 μS / cm, it is considered qualified water and recycled back to the boiler deaerator for reuse; if the return water conductivity is above 20 μS / cm, it is judged as unqualified water and switched to the return water tank for other uses via the valve.

[0004] One of the core components of a conductivity meter is the electrode, and its performance directly affects the accuracy of the measurement results. During operation, high impurity content in the measured medium often leads to electrode contamination or blockage, resulting in inaccurate measurements or inconsistent values. Therefore, the conductivity meter needs to be disassembled and cleaned periodically, especially when the measured medium contains a lot of impurities. Frequent manual disassembly and cleaning can easily cause damage to the conductivity meter or electrodes. Utility Model Content

[0005] This invention provides an automatic cleaning device for conductivity meters to address the problem of damage caused by frequent disassembly and cleaning of conductivity meters.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: An automatic cleaning device for a conductivity meter includes a main pipe, a branch pipe fixedly connected to one side of the main pipe, a solenoid valve C installed at the inlet of the branch pipe, a solenoid valve D installed at the outlet of the branch pipe, a conductivity meter fixedly installed on the middle wall of the branch pipe, the conductivity meter being positioned between the solenoid valve D and the solenoid valve C, a cleaning device installed outside the branch pipe, a solenoid valve A and a solenoid valve B respectively installed at both ends of the cleaning device, and a water pump installed on the cleaning device. It also includes a control cabinet, which is equipped with circuit breakers and contactors. The circuit breakers and contactors are connected by wires. The switches of solenoid valve A, solenoid valve B and water pump are controlled by the normally open contacts of the contactors, and the switches of solenoid valve C and solenoid valve D are controlled by the normally closed contacts of the contactors.

[0007] Furthermore, the cleaning device includes a water tank, the outlet of which is connected to a branch pipe via a pipeline. A water pump, a solenoid valve A, and a water collector are respectively installed on the pipeline between the branch pipe and the water tank. The outlet of the water collector enters the branch pipe to spray and wash the conductivity meter. A wastewater outlet is provided between the conductivity meter and the solenoid valve D. The wastewater outlet is located on the side wall of the branch pipe, and a solenoid valve B is installed at the wastewater outlet.

[0008] Furthermore, the water collector is equipped with three water outlet pipes, which are evenly distributed in a circular array around the conductivity meter, and fan-shaped nozzles are installed at the outlets of the water outlet pipes.

[0009] Furthermore, a time-controlled switch is provided between the circuit breaker and the contactor, and the time-controlled switch is connected to the contactor via a wire.

[0010] Compared with the prior art, the present invention has the following advantages: 1. This utility model achieves efficient cleaning with a simple mechanical structure, reduces disassembly costs, increases the lifespan of the conductivity meter, and reduces the frequency of disassembly of the conductivity meter.

[0011] 2. This utility model installs multiple solenoid valves and a cleaning device near the conductivity meter. Then, a timer switch controls the solenoid valves A, B, C, and D, as well as the pump, to achieve regular cleaning of the conductivity meter. This avoids equipment damage caused by frequent disassembly of the conductivity meter and saves manpower. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a control principle diagram of the present invention; In the diagram, 1 is the main pipe, 2 is the branch pipe, 3 is the conductivity meter, 4 is the circuit breaker, 5 is the contactor, 6 is the water pump, 7 is the water tank, 8 is the water collector, 9 is the fan-shaped sprinkler head, and 10 is the time control switch. Detailed Implementation

[0013] To further illustrate the technical solution of this utility model, the following embodiments will be used to further explain this utility model.

[0014] like Figure 1 and Figure 2As shown, an automatic cleaning device for a conductivity meter includes a main pipe 1. A branch pipe 2 is fixedly connected to one side of the main pipe 1. A solenoid valve C is installed at the inlet of the branch pipe 2, and a solenoid valve D is installed at the outlet of the branch pipe 2. A conductivity meter 3 is fixedly installed on the middle wall of the branch pipe 2, positioned between the solenoid valves D and C. A cleaning device is installed outside the branch pipe 2, with solenoid valves A and B respectively installed at its two ends. The cleaning device includes a water tank 7, with the outlet of the water tank 7 connected to the branch pipe 2 via a pipe. A water pump 6, solenoid valve A, and a water collector 8 are respectively installed on the pipe between the branch pipe 2 and the water tank 7. The outlet of the water collector 8 enters the branch pipe 2 to spray and clean the conductivity meter 3. The water collector 8 has three outlet pipes. The three water outlet pipes are evenly distributed in a circular array centered on the conductivity meter 3. A fan-shaped nozzle 9 is installed at the outlet of each water outlet pipe. A wastewater outlet is located between the conductivity meter 3 and the solenoid valve D, and is located on the side wall of the branch pipe 2. A solenoid valve B is installed at the wastewater outlet. A water pump 6 is installed on the cleaning device. The system also includes a control cabinet containing a circuit breaker 4 and a contactor 5. The circuit breaker 4 is located on the main power line and is connected to the contactor 5 by a wire. A time switch 10 is installed between the circuit breaker 4 and the contactor 5, and is connected to the contactor 5 by a wire. The solenoid valves A and B, and the water pump 6 are controlled by the normally open contact of the contactor 5, while the solenoid valves C and D are controlled by the normally closed contact of the contactor 5.

[0015] Workflow: First, the time control switch 10 is set with its start time, stop time, and frequency. Then, the time control switch 10 is activated. When the device is running normally, solenoid valves C and D are engaged and opened, while solenoid valves A and B and the water pump 6 are closed. The measured medium flows from the main pipe through solenoid valve C to the conductivity meter 3, where the conductivity meter 3 is in measurement mode. The medium then returns to the main pipe 1 through solenoid valve D. When the cleaning start time is reached, the time control switch 10 opens solenoid valves A and B and starts the water pump, while solenoid valves C and D close. At this time, clean water enters the water pump 6 from the water tank 7, flows through solenoid valve A into the water collector 8, and is then distributed by the water collector 8 to the three cleaning pipelines, finally entering the fan-shaped nozzles 9 installed on the branch pipes to achieve periodic cleaning of the conductivity meter 3. The time control switch 10 can flexibly set the start and end times of the cleaning process.

[0016] The foregoing has shown and described the main features and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model.

[0017] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An automatic cleaning device for a conductivity meter, characterized in that: Includes a main pipe (1), a branch pipe (2) is fixedly connected to one side of the main pipe (1), a solenoid valve C is provided at the inlet of the branch pipe (2), a solenoid valve D is provided at the outlet of the branch pipe (2), a conductivity meter (3) is fixedly installed on the middle pipe wall of the branch pipe (2), the conductivity meter (3) is located between the solenoid valve D and the solenoid valve C, a cleaning device is provided on the outside of the branch pipe (2), a solenoid valve A and a solenoid valve B are respectively provided at both ends of the cleaning device, and a water pump (6) is provided on the cleaning device. It also includes a control cabinet, which is equipped with a circuit breaker (4) and a contactor (5). The circuit breaker (4) is located on the main power line. The circuit breaker (4) and the contactor (5) are connected by wires. The switches of the solenoid valve A, solenoid valve B and water pump (6) are controlled by the normally open contact of the contactor (5). The switches of the solenoid valve C and solenoid valve D are controlled by the normally closed contact of the contactor (5).

2. The automatic cleaning device for a conductivity meter according to claim 1, characterized in that: The cleaning device includes a water tank (7), the outlet of the water tank (7) is connected to a branch pipe (2) through a pipe, a water pump (6), a solenoid valve A and a water collector (8) are respectively installed on the pipe between the branch pipe (2) and the water tank (7), the outlet of the water collector (8) enters the branch pipe (2) to spray the conductivity meter (3), a wastewater outlet is provided between the conductivity meter (3) and the solenoid valve D, the wastewater outlet is located on the side wall of the branch pipe (2), and a solenoid valve B is provided at the wastewater outlet.

3. The automatic cleaning device for a conductivity meter according to claim 2, characterized in that: The water collector (8) is equipped with three water outlet pipes, which are evenly distributed in a circular array around the conductivity meter (3). A fan-shaped nozzle (9) is provided at the outlet of the water outlet pipe.

4. The automatic cleaning device for a conductivity meter according to claim 1, characterized in that: A time control switch (10) is provided between the circuit breaker (4) and the contactor (5), and the time control switch (10) is connected to the contactor (5) by a line.

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