A water quality monitor metering tube cleaning device

Abstract

The utility model provides a kind of water quality monitor measuring tube cleaning device, it is related to water quality monitoring field, water quality monitor measuring tube cleaning device, including the cleaning port being set in the water inlet end of measuring tube, and the liquid outlet being set in the liquid discharge end of measuring tube, the cleaning port is provided with water inlet tee, the liquid outlet is provided with drain tee, and one end of the outlet end of drain tee is communicated with waste liquid collection unit.The water quality monitor measuring tube cleaning device, by water inlet tee injection clean water and then switch water inlet tee to be communicated with circulating pump, by drain tee, clean water in measuring tube is recycled into water inlet tee and is sprayed to the inner wall of measuring tube by spray head, when cleaning is finished, switch drain tee and waste liquid collection bottle connection, clean water is discharged to waste water collection bottle, water inlet tee is switched again to be communicated with clean water, clean water is used to clean measuring tube, so as to reduce the amount of clean water and guarantee cleaning effect.

Description

Technical Field

[0001] This utility model relates to the field of water quality monitoring technology, specifically a cleaning device for the metering tube of a water quality monitoring instrument. Background Technology

[0002] Water quality monitoring requires the metering of reagents into the sampled liquid, such as acid-base indicators like phenolphthalein and methyl orange, as well as organic colorimetric reagents used for specific water quality indicators. These reagents often have large molecular structures and a certain degree of polarity. These organic molecules may adsorb onto the metering tube through van der Waals forces, hydrogen bonds, and other interactions, especially when there are small irregularities or impurities on the container wall surface, making them more prone to adhesion and difficult to clean during the cleaning process.

[0003] Existing patent CN216012386U describes a self-cleaning metering tube, comprising a first liquid storage box, a sealing cap threaded to the inner side of the top of the first liquid storage box, a connecting tube connected to the bottom of the first liquid storage box, and a second liquid storage box connected to the end of the connecting tube away from the first liquid storage box. A fastener is snapped into the middle of the outer side of the connecting tube, and thumb sleeves are fixedly connected to the top and bottom of the right side of the fastener. This self-cleaning metering tube prevents slippage and breakage during cleaning by gripping the fastener and passing a finger through the fixing sleeve and one of the thumb sleeves, improving the stability of the metering tube during cleaning. After the cleaning solution is introduced into the metering tube and shaken, the self-cleaning coating causes small water droplets to coalesce into larger droplets, which then detach under gravity, making it easy to remove stains adhering to the metering tube. In water quality monitoring, some reagents adhere strongly to the wall, requiring shaking and the introduction of more cleaning solution to ensure thorough cleaning. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a water quality monitoring instrument metering tube cleaning device, which solves the problem of excessive water consumption when rinsing the metering tube mentioned in the background technology.

[0005] Technical solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a water quality monitoring instrument metering tube cleaning device, comprising a cleaning port at the water inlet end of the metering tube and a drain port at the liquid outlet end of the metering tube. The cleaning port is provided with a water inlet tee, and the drain port is provided with a drainage tee. One end of the outlet end of the drainage tee is connected to a waste liquid collection unit, and the other end of the outlet end of the drainage tee is connected to and communicates with one inlet end of the water inlet tee. A circulation pump is provided in this circuit. The other inlet end of the water inlet tee is connected to a clean water inlet pipe. The outlet end of the water inlet tee is located inside the metering tube and sprays water onto the inner wall of the metering tube.

[0007] Furthermore, the outlet end of the water inlet tee is connected to and penetrates a nozzle, the nozzle is concentric with the metering tube, and the side wall of the nozzle is provided with spray holes pointing towards the inner wall of the metering tube.

[0008] Furthermore, a sliding tube is connected and passes through the top of the nozzle, and a fixed tube is slidably connected to the outer surface of the sliding tube. The fixed tube is fixedly connected to the metering tube and is connected and passes through the outlet end of the water inlet tee. A control unit for controlling the movement of the sliding tube is provided inside the sliding tube and the fixed tube.

[0009] Furthermore, the control unit includes an electromagnetic coil fixedly embedded in the top of the fixed tube and a magnetic ring fixedly installed in the top of the sliding tube.

[0010] Furthermore, the control unit includes annularly distributed drainage holes on the surface of the sliding tube, a pipe connected to and through the outlet end of the water inlet tee on the lowest side wall of the fixed tube, the top of the sliding tube being sealed, a gas exchange hole being provided at the top of the fixed tube, a gas tee being connected and through the gas exchange hole above it, and the two air inlets of the gas tee being connected to the gas supply mechanism and the exhaust mechanism, respectively.

[0011] Furthermore, a cleaning agent filling port is connected and runs through the pipeline between the circulating pump and the drain tee.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. The water quality monitor's metering tube cleaning device involves injecting clean water through the inlet tee, then switching the inlet tee to connect with the circulation pump. The clean water in the metering tube is circulated back into the inlet tee through the drain tee and sprayed onto the inner wall of the metering tube through the nozzle. After cleaning, the drain tee is switched to connect with the waste liquid collection bottle to drain the clean water into the waste water collection bottle. The inlet tee is then switched back to connect with the clean water. The metering tube is cleaned using clean water, thereby reducing the amount of clean water used and ensuring the cleaning effect.

[0014] 2. The water quality monitor's metering tube cleaning device uses a sliding tube that moves up and down relative to a fixed tube to change the position of the nozzle within the metering tube. This allows the nozzle to flush the inner wall of the metering tube, thereby improving the cleaning effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the sliding tube connection of this utility model;

[0017] Figure 3 This is a schematic diagram of the drainage hole connection of this utility model;

[0018] Figure 4 This is a schematic diagram of the filling port connection of this utility model.

[0019] The components are as follows: 1. Cleaning port; 2. Drain port; 3. Drain tee; 4. Circulation pump; 5. Nozzle; 501. Spray hole; 502. Sliding tube; 503. Fixed tube; 54. Control unit; 541. Electromagnetic coil; 542. Magnetic ring; 543. Drain hole; 544. Gas exchange hole; 545. Gas tee; 6. Filling port; 7. Water inlet tee. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] See Figure 1-4 A water quality monitor metering tube cleaning device includes a cleaning port 1 at the water inlet end of the metering tube, the metering tube having separate reagent inlet and outlet, and a drain port 2 at the liquid outlet end of the metering tube. The cleaning port 1 is equipped with a water inlet tee 7, and the drain port 2 is equipped with a drain tee 3. The water inlet of the drain tee 3 is flush with the inner bottom wall of the metering tube, and the length of the connection part is reduced to avoid affecting the measurement data during reagent measurement. A valve can also be installed between the drain tee 3 and the metering tube to reduce the flow of reagent into the drain tee 3. One end of the outlet end of the drain tee 3 is connected to a waste liquid collection unit, and the other end of the outlet end of the drain tee 3 is connected to and connected to one inlet end of the water inlet tee 7. A circulation pump 4 is installed in this circuit. The other inlet end of the water inlet tee 7 is connected to a clean water inlet pipe, and the outlet end of the water inlet tee 7 is located inside the metering tube and sprays water onto the inner wall of the metering tube.

[0022] The outlet end of the water inlet tee 7 is connected to and has a nozzle 5. The nozzle 5 is concentric with the metering tube. The side wall of the nozzle 5 is provided with a spray hole 501 pointing to the inner wall of the metering tube. Spraying water onto the inner wall of the metering tube through the spray hole 501 can clean the inner wall of the metering tube, thereby accelerating the cleaning of the metering tube.

[0023] A sliding tube 502 is connected and passes through the top of the nozzle 5. A fixed tube 503 is slidably connected to the outer surface of the sliding tube 502. The fixed tube 503 is fixedly connected to the metering tube and is connected and passes through the outlet end of the water inlet tee 7. A control unit 54 for controlling the movement of the sliding tube 502 is set inside the sliding tube 502 and the fixed tube 503. With this setting, the nozzle 5 can be driven to move up and down, thereby thoroughly cleaning the inside of the metering tube.

[0024] The control unit 54 includes an electromagnetic coil 541 fixedly embedded in the top of the fixed tube 503 and a magnetic ring 542 fixedly installed in the top of the sliding tube 502. By setting the electromagnetic coil 541 and the magnetic ring 542, and by controlling the energizing direction and the amount of energizing the electromagnetic coil 541, the up and down movement of the nozzle 5 can be controlled.

[0025] Alternatively, the control unit 54 includes annularly distributed drain holes 543 on the surface of the sliding tube 502. A pipe is provided on the lowermost side wall of the fixed tube 503, which is connected to and passes through the outlet end of the water inlet tee 7. The top end of the sliding tube 502 is sealed and fits against the inner wall of the fixed tube 503. A gas exchange hole 544 is provided at the top end of the fixed tube 503. A gas tee 545 is connected and passes through the gas exchange hole 544. The two air inlets of the gas tee 545 are respectively connected to the air supply mechanism and the air exhaust mechanism. In this method, the air supply mechanism inflates the fixed tube 503 and compresses the sliding tube 502 to move downward. The air exhaust mechanism vents the air outward, which can make the sliding tube 502 move upward, thereby controlling the position of the nozzle 5. More optimized, a return spring is provided between the sliding tube 502 and the fixed tube 503 to assist in the return process during the air exhaust.

[0026] By controlling the nozzle 5 to move up and down, the number of outward water spraying units is increased. As the nozzle 5 moves downward, the number of outward water spraying units continues to increase, thereby improving the cleaning effect.

[0027] A cleaning agent filling port 6 is connected and runs through the pipeline between the circulation pump 4 and the drain tee 3. By setting the cleaning agent filling port 6 at the pipeline between the circulation pump 4 and the drain tee 3, the cleaning agent can be added appropriately during the cleaning process according to the cleaning effect.

[0028] In use, clean water is injected through the inlet tee 7 and then switched to connect with the circulation pump 4. The clean water in the metering tube is circulated into the inlet tee 7 through the drain tee 3 and sprayed onto the inner wall of the metering tube through the nozzle 5. After cleaning, the drain tee 3 is switched to connect with the waste liquid collection bottle to drain the clean water into the waste water collection bottle. The inlet tee 7 is then switched back to connect with the clean water to clean the metering tube, thereby reducing the amount of clean water used and ensuring the cleaning effect.

[0029] During the cleaning process, the position of the nozzle 5 in the metering tube is changed by sliding the sliding tube 502 up and down relative to the fixed tube 503, thereby allowing the nozzle 5 to flush the inner wall of the metering tube and improve the cleaning effect.

[0030] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A water quality monitoring instrument metering tube cleaning device, comprising a cleaning port (1) disposed at the water inlet end of the metering tube, and a drain port (2) disposed at the drain end of the metering tube, characterized in that: The cleaning port (1) is equipped with a water inlet tee (7), and the drain port (2) is equipped with a drain tee (3). One end of the drain tee (3) is connected to the waste liquid collection unit, and the other end of the drain tee (3) is connected to one inlet of the water inlet tee (7). A circulation pump (4) is installed in this circuit, and the other inlet of the water inlet tee (7) is connected to the clean water inlet pipe. The outlet end of the inlet tee (7) is located inside the metering tube and sprays water onto the inner wall of the metering tube.

2. The water quality monitoring instrument metering tube cleaning device according to claim 1, characterized in that: The outlet end of the water inlet tee (7) is connected to and has a nozzle (5) through it. The nozzle (5) is concentric with the metering tube, and the side wall of the nozzle (5) is provided with a spray hole (501) pointing to the inner wall of the metering tube.

3. The water quality monitoring instrument metering tube cleaning device according to claim 2, characterized in that: A sliding tube (502) is connected and passes through the top of the nozzle (5). A fixed tube (503) is slidably connected to the outer surface of the sliding tube (502). The fixed tube (503) is fixedly connected to the metering tube. The fixed tube (503) is connected and passes through the outlet end of the water inlet tee (7). A control unit (54) for controlling the movement of the sliding tube (502) is provided inside the sliding tube (502) and the fixed tube (503).

4. The water quality monitoring instrument metering tube cleaning device according to claim 3, characterized in that: The control unit (54) includes an electromagnetic coil (541) fixedly embedded in the top of the fixed tube (503) and a magnetic ring (542) fixedly installed in the top of the sliding tube (502).

5. A water quality monitoring instrument metering tube cleaning device according to claim 3, characterized in that: The control unit (54) includes annularly distributed drain holes (543) on the surface of the sliding tube (502), a pipe is provided on the lowermost side wall of the fixed tube (503) to connect and pass through the outlet end of the water inlet tee (7), the top end of the sliding tube (502) is sealed, the top end of the fixed tube (503) is provided with a gas exchange hole (544), a gas tee (545) is connected and passes through the gas exchange hole (544), and the two air inlets of the gas tee (545) are respectively connected to the gas supply mechanism and the exhaust mechanism.

6. A water quality monitoring instrument metering tube cleaning device according to claim 4 or 5, characterized in that: The circulating pump (4) is connected to the drain tee (3) and has a cleaning agent filling port (6) running through it.

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