Automatic cleaning device for cold filter plugging point pipette

Abstract

The utility model belongs to the field of laboratory equipment cleaning, and discloses an automatic cleaning device for a cold filter plugging point pipette. Comprising a testing part, a cleaning part and a control part. And the effects of efficient cleaning, thorough cleaning, rapid drying, environmental protection, safety and simple and convenient operation can be achieved.

Description

An automated cleaning device for cold filter point suction tubes Technical Field

[0001] This utility model belongs to the field of laboratory equipment cleaning, specifically relating to an automated cleaning device for cold filter point suction tubes. Background Technology

[0002] Cold filter plugging point (CFPP) pipettes are essential tools in the petrochemical industry for determining the CFPP of petroleum products. Their cleanliness directly affects the accuracy of the test results. Traditional cleaning methods primarily rely on manual operation, which presents the following problems:

[0003] 1. Low cleaning efficiency: Manual cleaning is time-consuming and the results are inconsistent.

[0004] 2. Incomplete cleaning: It is difficult to completely remove tiny particles and oil stains from inside the pipette.

[0005] 3. Insufficient drying: Residual moisture or cleaning agent may affect subsequent tests.

[0006] 4. Environmental and safety issues: Some cleaning agents may pose health hazards to operators and the environment. Summary of the Invention

[0007] In order to overcome the shortcomings of the existing technology, this utility model provides an automated cleaning device for cold filter point suction tubes, which can efficiently and thoroughly clean the suction tubes and achieve rapid drying, while reducing harm to the environment and operators.

[0008] The above-mentioned objective of this utility model is achieved through the following technical solution: an automated cleaning device for cold filter point suction tubes, comprising:

[0009] The testing section is equipped with a test head, and a pipeline is installed inside the test head. One end of the pipeline is connected to the outer shell of the control section, and the other end is connected to a suction tube that extends from the test head to the cleaning tank of the cleaning section. The suction tube inside the test head is a tube that is wide in the middle and narrow at both ends. The narrow end of the pipeline is equipped with an upper detection device, and the other narrow end is equipped with a lower detection device.

[0010] The cleaning section is equipped with a cleaning tank, and a suction tube that is narrow at the top and wide at the bottom, extending from the testing section, is installed in the cleaning tank. A filter is installed at the bottom of the suction tube.

[0011] The control unit has an outer casing. A purge switch and a cleaning switch are installed on the top of the casing. Inside the casing are an air pump, a power supply, solenoid valve a, solenoid valve b, a heating device, and a pressure regulating device.

[0012] Furthermore, a sensor is also installed inside the cleaning tank, extending from the cleaning tank into the test head.

[0013] Furthermore, a base is also provided at the bottom of the cleaning pool.

[0014] Furthermore, a control board is provided at the bottom of the control unit housing.

[0015] Furthermore, the control unit housing is also provided with a left tee and a right tee. The right tee is connected to the pipeline, solenoid valve a, and heating device respectively. The left tee is connected to the air pump, pressure regulating device, and solenoid valve a respectively. The air pump is also connected to solenoid valve b, and solenoid valve b is also connected to the heating device.

[0016] In a further preferred embodiment of the present invention, the housing is further provided with a cleaning switch and a purging switch connected to the air pump.

[0017] Furthermore, the upper detection device and the lower detection device specifically include a mounting base, a receiving lamp, a circuit board, and a transmitting lamp. The circuit board covers the suction tube and is connected to the receiving lamp. The receiving lamp and the circuit lamp are located on the inner wall of the circuit board of the upper detection device and the lower detection device.

[0018] The advantages of this utility model compared with the prior art are:

[0019] 1. High-efficiency cleaning: High-pressure rinsing significantly improves cleaning efficiency;

[0020] 2. Thorough cleaning: Ensure there are no residual contaminants on the inner and outer walls of the pipette;

[0021] 3. Rapid drying: The drying system can dry the pipette in a short time;

[0022] 4. Environmentally friendly and safe: Uses environmentally friendly cleaning agents to reduce chemical residues and environmental pollution;

[0023] 5. Easy to operate: The automated control system simplifies the operation process and reduces labor costs. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0025] Figure 1 is a structural schematic diagram of an automated cleaning device for a cold filter point suction tube according to the present invention.

[0026] Figure 2 is a schematic diagram of the pipeline connection of an automated cleaning device for a cold filter point suction tube according to this utility model.

[0027] Figure 3 is a schematic diagram of the upper and lower detection devices of this utility model.

[0028] In the diagram: 1. Test head; 2. Piping; 3. Upper detection device; 4. Suction tube; 5. Lower detection device; 6. Sensor; 7. Cleaning tank; 8. Filter; 9. Base; 10. Purge switch; 11. Cleaning switch; 12. Housing; 13. Air pump; 14. Power supply; 15. Control board; 16. Solenoid valve a; 17. Solenoid valve b; 18. Heating device; 19. Pressure regulating device; 20. Left tee; 21. Mounting base; 22. Receiver light; 23. Circuit board; 24. Transmitter light; 25. Right tee. Detailed Implementation

[0029] The present invention is described in detail below through specific embodiments, but this does not limit the scope of protection of the present invention. Unless otherwise specified, the experimental methods used in the present invention are all conventional methods, and the experimental equipment, materials, reagents, etc. used can all be obtained commercially.

[0030] Example 1

[0031] An automated cleaning device for cold filter point suction tubes includes the following components:

[0032] 1. Cleaning tank 7: Used to hold cleaning fluid and pipette 4.

[0033] 2. Flushing system: including water pump 13 and adjustable flow rate valve body, used for high-pressure flushing of the inside of suction pipe 4 to ensure thorough cleaning.

[0034] 3. Rinsing system: Used to remove cleaning agent residue, using deionized water or purified water for rinsing.

[0035] 4. Drying system: including a hot air generator or vacuum drying device, used to quickly dry the suction tube and avoid moisture residue.

[0036] 5. Automated Control System: Employing a PLC or microcontroller, the system achieves fully automated operation of cleaning, rinsing, and drying. Users can set cleaning parameters such as cleaning time, rinsing time, and drying temperature.

[0037] 6. Environmentally friendly cleaning agents: The equipment is equipped with low-toxicity, easily degradable environmentally friendly cleaning agents to reduce harm to the environment and operators.

[0038] The device is divided into cleaning and drying sections.

[0039] Cold filter cleaning: Press cleaning switch 11, air pump 13 works, solenoid valve a16 opens, and cleaning fluid in the cleaning tank is drawn into suction pipe 4 through tee, pipe 2, suction pipe 4, and filter 8. After passing through upper detection device 3, it reaches the highest point. After reaching the highest point, the program gives a signal to close solenoid valve a16 and open solenoid valve b17. The cleaning fluid is blown into cleaning tank 7 through heating device 18, tee, pipe 2, suction pipe 4, and filter 8. After the lower detection device 5 detects the backflow of cleaning fluid, the program closes solenoid valve b17 and opens solenoid valve a16 to absorb the cleaning fluid for cleaning. This process is repeated to achieve the cleaning purpose. The cleaning time is 1-10 minutes and can be set by the program.

[0040] Cold filtration point rinsing: To ensure no cleaning solution residue affects the test results, rinsing is required. Replace cleaning tank 7 with deionized water or purified water, and follow the same rinsing steps as with cleaning solution rinsing.

[0041] Cold filter point drying: After the cold filter point is cleaned, remove the cleaning tank 7 and dry the cold filter point suction pipe 4 and the suction filter 8. Press the purging button 10 to start the program, start the air pump 13, and switch to the solenoid valve b17 through the program control. The heating device 18 heats the dry air. The hot air drying temperature range is 50-80℃. The hot air dries the cold filter point suction pipe 4 and the suction filter 8 through the pipeline 2. The drying time is 1-10 minutes and can be set by the program.

[0042] The upper detection device 3 and the lower detection device 5 consist of a mounting base 21, a receiving lamp 22, a circuit board 23, and a transmitting lamp 24. When the transmitting lamp 24 emits a signal and the central hole of the mounting base 21 is unobstructed, the receiving lamp 22 receives the signal normally, indicating a pass / fail condition. When the transmitting lamp 24 emits a signal and the central hole of the mounting base 21 is obstructed by the test sample, the receiving lamp 22 does not receive the signal, indicating a fail / unsuccess condition. This principle is used to determine whether the test sample passes or fails.

[0043] The embodiments described above are merely preferred embodiments of this utility model, and not all feasible embodiments of this utility model. For those skilled in the art, any obvious modifications made without departing from the principles and spirit of this utility model should be considered to be included within the scope of protection of the claims of this utility model.

Claims

1. An automated cleaning device for cold filter point suction tubes, characterized in that, include: The testing section is equipped with a test head (1), and a pipe (2) is provided inside the test head (1). One end of the pipe (2) is connected to the outer shell (12) of the control section, and the other end is connected to a suction pipe (4) extending from the test head (1) to the cleaning tank (7) of the cleaning section. The suction pipe (4) inside the test head (1) is a pipe that is wide in the middle and narrow at both ends. The narrow end connected to the pipe (2) is equipped with an upper detection device (3), and the other narrow end is equipped with a lower detection device (5). The cleaning section is equipped with a cleaning tank (7), and a suction pipe (4) extending from the test section is narrow at the top and wide at the bottom is provided inside the cleaning tank (7). A filter (8) is provided at the bottom of the suction pipe (4). The control section is equipped with an outer shell (12), and a purge switch (10) and a cleaning switch (11) are installed on the top of the outer shell (12). Inside the outer shell (12) are an air pump (13), a power supply (14), a solenoid valve a (16), a solenoid valve b (17), a heating device (18), and a pressure regulating device (19).

2. The automated cleaning device for cold filter point suction tubes according to claim 1, characterized in that, The cleaning tank (7) is also equipped with a sensor (6), which extends from the cleaning tank (7) into the test head (1).

3. The automated cleaning device for cold filter point suction tubes according to claim 1, characterized in that, The bottom of the cleaning pool (7) is also provided with a base (9).

4. The automated cleaning device for cold filter point suction tubes according to claim 1, characterized in that, The bottom of the housing (12) of the control section is provided with a control panel (15).

5. The automated cleaning device for cold filter point suction tubes according to claim 1, characterized in that, The control unit housing (12) is also provided with a left tee (20) and a right tee (25). The right tee (25) is connected to the pipeline (2), solenoid valve a (16), and heating device (18) respectively. The left tee (20) is connected to the air pump (13), pressure regulating device (19), and solenoid valve a (16) respectively. The air pump (13) is also connected to solenoid valve b (17), and solenoid valve b (17) is also connected to heating device (18).

6. The automated cleaning device for cold filter point suction tubes according to claim 1, characterized in that, The outer casing (12) is also provided with a cleaning switch (11) and a purging switch (10) connected to the air pump (13).

7. The automated cleaning device for cold filter point suction tubes according to claim 1, characterized in that, The upper detection device (3) and lower detection device (5) specifically include a mounting base (21), a receiving lamp (22), a circuit board (23), and a transmitting lamp (24). The circuit board (23) covers the suction tube (4) and is connected to the receiving lamp (22). The receiving lamp (22) and the transmitting lamp (24) are located on the inner wall of the circuit board (23) of the upper detection device (3) and lower detection device (5).

Images