TOC instrument cleaning device based on online cleaning technology

Abstract

The invention relates to the technical field of cleaning devices, and particularly discloses a TOC instrument cleaning device based on an online cleaning technology, the TOC instrument cleaning device comprises a water tank, a variable frequency water pump and a cleaning assembly, the water tank is connected with a water outlet of a TOC instrument through a liquid return pipe and connected with the water pumping end of the variable frequency water pump through a liquid outlet pipe, and the water outlet end of the variable frequency water pump is connected with a cleaning pipe; the cleaning assembly comprises a first adapter, a connecting pipe and a second adapter, the first adapter is connected with the cleaning pipe, the second adapter is connected with a water inlet of the TOC instrument, quick-connection male heads are arranged at the two ends of the connecting pipe, quick-connection female heads matched with the quick-connection male heads are arranged on the first adapter and the second adapter, a clamping ring is arranged in the connecting pipe, and the clamping ring is connected with the clamping ring. A plurality of flexible disturbance wires are evenly arranged on the side, close to the second adapter, of the clamping ring in the circumferential direction. The device has the online cleaning capability, the cleaning process is simplified, the maintenance convenience of the TOC instrument is improved, the accuracy and reliability of a measurement result are guaranteed, and the service life of the instrument is prolonged.

Description

Technical Field

[0001] The present invention belongs to the technical field of cleaning devices, and particularly relates to a TOC analyzer cleaning device based on on-line cleaning technology. Background Art

[0002] Total Organic Carbon (TOC) analyzers are widely used in industries such as pharmaceuticals, food, and drinking water to detect the organic carbon content in water samples. In the pharmaceutical industry, the accuracy and stability of TOC analyzers are directly related to the compliance of the production process and product quality. During the long-term operation of TOC analyzers, the flow-through components inside, such as the water intake pipes, valves, oxidation reactors, and sensors, are prone to adhering to a kind of red rust-like sediment due to the influence of water quality and operating environment. As the operation time extends, these red rust grains will continuously spread and grow, resulting in an increase in the surface roughness of the pipes and flow-through components, and increasing the risk of attachment of organic impurities and microorganisms.

[0003] Especially, the inner diameter of the water intake pipes of TOC analyzers is generally small (less than 2 mm), and the water intake flow rate of some imported brand TOCs is only about 60 ml / min, which is equivalent to a linear velocity of about 0.32 m / s, and the flow rate in some local areas is even lower. Such low flow rates and narrow spaces provide favorable conditions for the growth of microorganisms and the accumulation of organic matter, which may cause instability or even deviation of the measured values. The accumulation of pollutants not only affects the detection accuracy of the instrument, but also may cause problems such as pipe blockage and internal corrosion, shortening the service life of the equipment.

[0004] The existing cleaning methods usually require disassembling the key components of the TOC analyzer, soaking them in a cleaning solution, and cooperating with an ultrasonic water bath for treatment. However, this method is cumbersome to operate, difficult to disassemble and assemble, and is prone to damage the precision components inside the instrument (such as UV lamps). Moreover, due to the narrow pipe diameter, manual cleaning cannot completely remove the internal sediments, and the cleaning effect is limited. Even if the operation is stable in the short term after cleaning, numerical fluctuations often occur again after a period of time, making it difficult to meet the requirements of the pharmaceutical industry for long-term stable operation and data accuracy.

[0005] Therefore, we propose a TOC analyzer cleaning device based on on-line cleaning technology to solve the above technical problems. Summary of the Invention

[0006] In order to solve the technical problems existing in the above-mentioned prior art, the present invention proposes a TOC analyzer cleaning device based on on-line cleaning technology.

[0007] The technical solution adopted by the present invention is as follows:

[0008] TOC analyzer cleaning device based on online cleaning technology, including a water tank, a variable-frequency water pump and a cleaning component. A liquid return pipe and a liquid outlet pipe are connected to the water tank. The liquid return pipe is connected to the water outlet of the TOC analyzer. The water tank is connected to the water pumping end of the variable-frequency water pump through the liquid outlet pipe. The water outlet end of the variable-frequency water pump is connected with a cleaning pipe. The cleaning component includes a first adapter, a connecting pipe and a second adapter. The first adapter is connected to the cleaning pipe. The second adapter is connected to the water inlet of the TOC analyzer. Quick-connect male heads are provided at both ends of the connecting pipe. Quick-connect female heads matching with the quick-connect male heads are provided on both the first adapter and the second adapter. A snap ring is provided inside the connecting pipe. A plurality of flexible disturbance wires are evenly arranged circumferentially on the side of the snap ring close to the second adapter. The flexible disturbance wires extend along the axial direction of the connecting pipe into the internal flow channel of the TOC analyzer and can swing or vibrate under the action of water flow, for physically disturbing and cleaning the inner wall of the internal flow channel of the TOC analyzer.

[0009] In a further technical solution, the flexible disturbance wires are formed by sequentially connecting a plurality of wire bodies. Sleeve rings are provided at the ends of adjacent wire bodies and are movably sleeved on the adjacent wire bodies through the sleeve rings.

[0010] In a further technical solution, the wire body is made of a nylon material coated with an optical fiber core material.

[0011] In a further technical solution, the quick-connect male head is rotatably installed in the quick-connect female head, and the connecting pipe is drivingly connected with a driving component capable of driving the connecting pipe to rotate.

[0012] In a further technical solution, the driving component includes a base and a servo motor installed on the base. A plurality of mounting plates are provided on the base. The connecting pipe passes through the mounting plates and is rotatably matched with the mounting plates. A driving sprocket is fixedly sleeved on the output shaft of the servo motor. A driven sprocket is fixedly sleeved on the connecting pipe. The driving sprocket and the driven sprocket are connected by a chain.

[0013] In a further technical solution, a flow disturbing plate is provided inside the connecting pipe on the side close to the first adapter, and a plurality of holes are provided on the flow disturbing plate.

[0014] In a further technical solution, an ozone generator is further included. An air supply pipe and a guide pipe are connected to the ozone generator. The guide pipe extends into the inner bottom of the water tank.

[0015] In a further technical solution, a housing is further included. The water tank, the variable-frequency water pump and the ozone generator are all installed in the housing. A power supply box is provided inside the housing. The variable-frequency water pump and the ozone generator are both electrically connected to the power supply box.

[0016] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present invention are as follows:

[0017] 1. The present invention has the ability of on-line cleaning. Compared with the traditional cleaning method that requires disassembling, soaking and ultrasonic cleaning of the key components of the TOC analyzer, this cleaning device can complete the cleaning operation of the internal flow channel without disassembling the instrument, simplifies the cleaning process, avoids cumbersome disassembly and assembly work, effectively reduces the risk of damaging the precision components inside the TOC analyzer, improves the convenience of maintaining the TOC analyzer, ensures that the instrument is in good operating condition through timely cleaning, effectively guarantees the accuracy and reliability of the measurement results, and extends the service life of the instrument.

[0018] 2. The flexible disturbance wire of the present invention is formed by sequentially connecting multiple wire bodies and can be stretched. During installation, it reduces the difficulty of threading the flexible disturbance wire into the internal flow channel of the TOC analyzer. Under the action of water flow, it is pushed to stretch and is effectively extended and distributed in the internal flow channel of the TOC analyzer. Compared with the overall single-root structure, it can swing or vibrate more flexibly under the action of water flow, which is beneficial to improving the cleaning effect.

[0019] 3. The present invention drives the connecting pipe to rotate by setting a driving component, so that the flexible disturbance wire can perform rotational disturbance movement in the internal flow channel of the TOC analyzer, effectively improving the cleaning coverage and cleaning effect of the flexible disturbance wire during the cleaning process.

[0020] 4. The present invention is provided with a spoiler. The holes on it are used to change the direction of the water flow, so that the flowing water forms a turbulent flow, thereby enhancing the impact force of the water flow and the swing or vibration amplitude of the flexible disturbance wire, and further improving the cleaning effect.

[0021] 5. The present invention is provided with an ozone generator. The ozone generated by it is injected into the water tank through a gas guide pipe and dissolved in the cleaning liquid. By using the strong oxidizing property of ozone, it effectively decomposes the organic impurities and microbial films in the internal flow channel of the TOC analyzer, improves the decontamination ability of the cleaning liquid. At the same time, ozone has good bactericidal and disinfection effects, further improving the overall cleaning effect and hygiene level, effectively solving the problem of internal microbial growth during the long-term operation of the TOC analyzer, and ensuring the long-term stable operation of the TOC analyzer and the accuracy of measurement data. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be described by way of examples with reference to the accompanying drawings, wherein:

[0023] Figure 1 is a schematic structural diagram of the present invention;

[0024] Figure 2 is Figure 1 a partial enlarged schematic view of part A in

[0025] Figure 3 This is the front view of the connecting pipe and the driving component of the present invention;

[0026] Figure 4 This is the connection schematic diagram of the snap ring and the flexible disturbing wire of the present invention;

[0027] Figure 5 is Figure 4 the partial enlarged schematic diagram at position B in

[0028] Figure 6 This is the structural schematic diagram of the spoiler of the present invention.

[0029] Reference numerals: 1 - water tank, 2 - variable frequency water pump, 3 - return liquid pipe, 4 - liquid outlet pipe, 5 - cleaning pipe, 6 - first adapter, 7 - connecting pipe, 8 - second adapter, 9 - quick - connect male head, 10 - quick - connect female head, 11 - snap ring, 12 - flexible disturbing wire, 1201 - wire body, 1202 - sleeve ring, 13 - base, 14 - servo motor, 15 - mounting plate, 16 - driving sprocket, 17 - driven sprocket, 18 - chain, 19 - spoiler, 20 - hole, 21 - ozone generator, 22 - air supply pipe, 23 - air guide pipe, 24 - housing, 25 - power supply box. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Embodiment:

[0032] Refer to Figures 1-6, the present invention provides a TOC analyzer cleaning device based on an online cleaning technology, comprising a water tank 1, a variable-frequency water pump 2 and a cleaning assembly. A liquid return pipe 3 and a liquid outlet pipe 4 are connected to the water tank 1. The liquid return pipe 3 is connected to the water outlet of the TOC analyzer. The water tank 1 is connected to the pumping end of the variable-frequency water pump 2 through the liquid outlet pipe 4. The water outlet end of the variable-frequency water pump 2 is connected to a cleaning pipe 5. The cleaning assembly includes a first adapter 6, a connecting pipe 7 and a second adapter 8. The first adapter 6 is threadedly connected to the cleaning pipe 5. The second adapter 8 is connected to the water inlet of the TOC analyzer. Quick-connect male connectors 9 are provided at both ends of the connecting pipe 7. Quick-connect female connectors 10 that cooperate with the quick-connect male connectors 9 are provided on both the first adapter 6 and the second adapter 8. A snap ring 11 is provided inside the connecting pipe 7. A plurality of flexible disturbance wires 12 are circumferentially and evenly arranged on the side of the snap ring 11 close to the second adapter 8. The flexible disturbance wires 12 extend axially along the connecting pipe 7 into the internal flow channel of the TOC analyzer and can swing or vibrate under the action of water flow, for physically disturbing and cleaning the inner wall of the internal flow channel of the TOC analyzer.

[0033] This cleaning device realizes the automatic physical disturbance cleaning of the internal flow channel of the TOC analyzer by constructing a closed-loop circulation cleaning system. Its specific working principle is as follows:

[0034] First, inject an appropriate amount of cleaning liquid into the water tank 1. The cleaning liquid can be pure water, ozone water, or a special cleaning agent. The return pipe 3 is connected to the water outlet of the TOC analyzer, the first adapter 6 is connected to the cleaning pipe 5, and the second adapter 8 is connected to the water inlet of the TOC analyzer by means of threaded connections. By connecting the first adapter 6 to the cleaning pipe 5 and the second adapter 8 to the water inlet of the TOC analyzer, and through the cooperation of the quick-connect male head 9 and the quick-connect female head 10, both ends of the connecting pipe 7 are quickly connected to the first adapter 6 and the second adapter 8 respectively. At the same time, ensure that the flexible disturbance wire 12 penetrates into the internal flow path of the TOC analyzer. The water outlet of the TOC analyzer is connected to the water tank 1 through the return pipe 3, thus forming a closed cleaning loop, providing a fluid path basis for subsequent circulating cleaning operations. When the cleaning operation starts, by turning on the power supply, the variable-frequency water pump 2 is started. The variable-frequency water pump 2 extracts the cleaning liquid in the water tank 1 through the liquid outlet pipe 4, and then transports it to the internal flow path of the TOC analyzer through the cleaning pipe 5, the first adapter 6, the connecting pipe 7, and the second adapter 8 in sequence. When the cleaning liquid flows through the inside of the TOC analyzer, it can wash the attached pollutants such as red rust-like deposits, organic impurities, and microbial films in its internal flow path. Subsequently, it is discharged from the water outlet of the TOC analyzer and flows back to the water tank 1 through the return pipe 3, completing a cleaning cycle. During this cycle, the variable-frequency water pump 2 dynamically adjusts the motor frequency to achieve precise control of the water flow rate and pressure. The change in the water flow rate causes the impact on the flexible disturbance wire 12 to continuously change, prompting the flexible disturbance wire 12 to produce continuous swinging or vibrating movements. This movement makes the flexible disturbance wire 12 contact and rub against the inner wall of the internal flow path of the TOC analyzer, thereby achieving a brushing effect, effectively peeling off the attached pollutants such as red rust-like deposits, organic impurities, and microbial films on the inner wall, and improving the cleaning effect. The peeled-off attached pollutants are discharged together with the cleaning liquid and flow back to the water tank 1 through the return pipe 3, realizing the reuse of the dirty cleaning liquid. After the cleaning is completed, the connection between the return pipe 3 and the water outlet of the TOC analyzer can be disconnected, the residual cleaning liquid in the TOC analyzer can be emptied, and the cleaning liquid in the water tank 1 can be replaced. Then, start the cleaning process again to perform the second round of cleaning operations, thereby further improving the cleaning effect on the internal flow path of the TOC analyzer. Compared with the traditional cleaning method that requires disassembling, soaking, and ultrasonic cleaning of the key components of the TOC analyzer, this cleaning device has the ability of on-line cleaning, can complete the cleaning operation of the internal flow path without disassembling the instrument, simplifies the cleaning process, avoids the cumbersome disassembly and assembly work, effectively reduces the risk of damaging the internal precision components of the TOC analyzer, improves the convenience of maintaining the TOC analyzer, ensures that the instrument is in good operating condition through timely cleaning, effectively guarantees the accuracy and reliability of the measurement results, and extends the service life of the instrument.

[0035] In a specific embodiment, refer to Figure 4 and Figure 5, the flexible disturbance wire 12 is formed by sequentially connecting a plurality of wire bodies 1201. End sleeves 1202 are provided at the ends of adjacent wire bodies 1201, and the wire bodies 1201 are movably sleeved on adjacent wire bodies 1201 through the sleeves 1202.

[0036] The flexible disturbance wire 12 is formed by sequentially connecting a plurality of wire bodies 1201. Each wire body 1201 is slidably connected to an adjacent wire body 1201 through a sleeve 1202 provided at its end, so that the flexible disturbance wire 12 has the ability to expand and contract. This structural design reduces the difficulty of threading the flexible disturbance wire 12 into the internal flow channel of the TOC analyzer during installation. During the cleaning process, under the action of water flow, the flexible disturbance wire 12 is pushed to stretch and is effectively extended and distributed in the internal flow channel of the TOC analyzer. This structure formed by sequentially connecting a plurality of wire bodies 1201 can swing or vibrate more flexibly under the action of water flow compared to the overall single-root structure, which is beneficial to improving the cleaning effect.

[0037] In a specific embodiment, the wire body 1201 is made of a nylon material coated with an optical fiber core material.

[0038] The wire body 1201 is made of a nylon material coated with an optical fiber core material. The optical fiber core material provides good flexibility, enabling the wire body 1201 to adapt to the curved shape of the internal flow channel of the TOC analyzer, while the outer nylon material provides good wear resistance, effectively reducing the risk of damage to the internal precision components of the TOC analyzer during the cleaning process, thereby improving the flexibility and safety of the cleaning process.

[0039] In a specific embodiment, refer to Figure 2 and Figure 3 , the quick-connect male head 9 is rotatably installed in the quick-connect female head 10, and the connecting pipe 7 is drivingly connected to a driving assembly that can drive the connecting pipe 7 to rotate.

[0040] The connecting pipe 7 can be rotated through the driving assembly, thereby driving the flexible disturbance wire 12 to perform a rotational disturbance movement in the internal flow channel of the TOC analyzer, effectively improving the cleaning coverage and cleaning effect of the flexible disturbance wire 12 during the cleaning process. It is worth mentioning that the quick-connect male head 9 and the quick-connect female head 10 adopt a common quick-connection structure in the prior art. Specifically, in this design, taking the first adapter 6 as an example, the quick-connect female head 10 includes a plurality of limit balls installed on the circumference of the first adapter 6 and a sleeve installed on the first adapter 6 and slidable along the axial direction of the first adapter 6. An annular positioning groove is formed on the outer surface of the quick-connect male head 9. During the connection process, the limit balls can be embedded in the annular positioning groove under the push of the sleeve to achieve a quick locking connection between the quick-connect male head 9 and the quick-connect female head 10, ensuring both sealing performance and convenience for disassembly and assembly.

[0041] In a specific embodiment, refer to Figure 2 andFigure 3 The driving assembly includes a base 13 and a servo motor 14 installed on the base 13. A plurality of mounting plates 15 are provided on the base 13. The connecting pipe 7 is disposed through the mounting plate 15 and is rotatably engaged with the mounting plate 15. A driving sprocket 16 is fixedly sleeved on the output shaft of the servo motor 14, and a driven sprocket 17 is fixedly sleeved on the connecting pipe 7. The driving sprocket 16 and the driven sprocket 17 are connected by a chain 18 in transmission.

[0042] With the above design, driven by the servo motor 14, through the cooperation of the driving sprocket 16, the driven sprocket 17 and the chain 18, the connecting pipe 7 can be driven to rotate, so that the flexible disturbing wire 12 can perform a rotating disturbing action inside the TOC analyzer, effectively improving the cleaning coverage and cleaning effect of the flexible disturbing wire 12 during the cleaning process.

[0043] In a specific embodiment, refer to Figure 6 One side of the interior of the connecting pipe 7 close to the first adapter 6 is provided with a spoiler 19, and a plurality of holes 20 are formed in the spoiler 19.

[0044] By providing the spoiler 19, the holes 20 thereon are used to change the water flow direction, so that the flowing water forms a turbulent flow, thereby enhancing the impact force of the water flow and the swinging or vibration amplitude of the flexible disturbing wire 12, and further improving the cleaning effect.

[0045] In a specific embodiment, refer to Figure 1 It further includes an ozone generator 21. An air supply pipe 22 and a guide pipe 23 are connected to the ozone generator 21, and the guide pipe 23 extends into the inner bottom of the water tank 1.

[0046] By providing the ozone generator 21, the ozone generated by it is injected into the water tank 1 through the guide pipe 23 and dissolved in the cleaning liquid. Utilizing the strong oxidizing property of ozone, the organic impurities and microbial films in the internal flow channels of the TOC analyzer are effectively decomposed, improving the decontamination ability of the cleaning liquid. At the same time, ozone has good bactericidal and disinfection effects, further enhancing the overall cleaning effect and hygiene level, effectively solving the problem of internal microbial growth during the long-term operation of the TOC analyzer, and ensuring the long-term stable operation of the TOC analyzer and the accuracy of measurement data.

[0047] In a specific embodiment, refer to Figure 1 It further includes a housing 24. The water tank 1, the variable-frequency water pump 2 and the ozone generator 21 are all installed in the housing 24. A power supply box 25 is provided in the housing 24, and the variable-frequency water pump 2 and the ozone generator 21 are both electrically connected to the power supply box 25.

[0048] By integrally installing the water tank 1, the variable-frequency water pump 2 and the ozone generator 21 within the housing 24, the devices can be effectively and centrally managed and protected. Meanwhile, the design of the power supply box 25 ensures the power supply for the variable-frequency water pump 2 and the ozone generator 21, guaranteeing the continuous and stable operation of the devices.

[0049] The above are only embodiments of the present invention, and thus do not limit the patent scope of the present invention. Any equivalent structural or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall similarly be included within the patent protection scope of the present invention.

Claims

1. A TOC instrument cleaning device based on online cleaning technology, characterized in that: The invention comprises a water tank (1), a variable frequency water pump (2) and a cleaning component. The water tank (1) is provided with a liquid return pipe (3) and a liquid outlet pipe (4). The liquid return pipe (3) is connected to the water outlet of the TOC instrument. The water tank (1) is connected to the water pumping end of the variable frequency water pump (2) through the liquid outlet pipe (4). The water outlet of the variable frequency water pump (2) is connected to a cleaning pipe (5). The cleaning component comprises a first adapter (6), a connecting pipe (7) and a second adapter (8). The first adapter (6) is connected to the cleaning pipe (5). The second adapter (8) is connected to the water inlet of the TOC instrument. The connecting tube (7) is connected to the TOC instrument by a quick-connect male connector (9) at both ends thereof, and the first adapter (6) and the second adapter (8) are both provided with a quick-connect female connector (10) matched with the quick-connect male connector (9). A clamping ring (11) is provided inside the connecting tube (7), and a plurality of flexible disturbance wires (12) are evenly arranged in the circumferential direction of the clamping ring (11) on one side close to the second adapter (8). The flexible disturbance wires (12) extend axially along the connecting tube (7) to the internal flow channel of the TOC instrument, and can swing or vibrate under the action of water flow, so as to physically disturb and wash the inner wall of the internal flow channel of the TOC instrument.

2. The TOC instrument cleaning device based on online cleaning technology according to claim 1 is characterized in that: The flexible disturbance wire (12) is formed by connecting a plurality of wires (1201) in sequence, and the ends of adjacent wires (1201) are provided with loops (1202), and are movably sleeved on the adjacent wires (1201) through the loops (1202).

3. The TOC instrument cleaning device based on online cleaning technology according to claim 2 is characterized in that: The filament (1201) is made of an optical fiber core material coated with a nylon material.

4. The TOC instrument cleaning device based on online cleaning technology according to claim 1 is characterized in that: The quick-connect male head (9) is rotatably mounted in the quick-connect female head (10), and the connecting pipe (7) is transmission-connected with a driving assembly capable of driving the connecting pipe (7) to rotate.

5. The TOC instrument cleaning device based on online cleaning technology according to claim 4 is characterized in that: The driving assembly comprises a base (13) and a servo motor (14) mounted on the base (13); a plurality of mounting plates (15) are provided on the base (13); the connecting pipe (7) is arranged through the mounting plates (15) and is rotatably matched with the mounting plates (15); a driving sprocket (16) is fixedly sleeved on the output shaft of the servo motor (14); a passive sprocket (17) is fixedly sleeved on the connecting pipe (7); the driving sprocket (16) and the passive sprocket (17) are connected by a chain (18) for transmission.

6. The TOC instrument cleaning device based on online cleaning technology according to claim 1 is characterized in that: A spoiler (19) is provided inside the connecting pipe (7) on a side close to the first adapter (6), and a plurality of holes (20) are provided on the spoiler (19).

7. The TOC instrument cleaning device based on online cleaning technology according to claim 1 is characterized in that: It also comprises an ozone generator (21), the ozone generator (21) being connected with an air supply pipe (22) and an air guide pipe (23), the air guide pipe (23) extending into the bottom of the water tank (1).

8. The TOC instrument cleaning device based on online cleaning technology according to claim 7 is characterized in that: It also comprises a shell (24), wherein the water tank (1), the variable frequency water pump (2) and the ozone generator (21) are all installed in the shell (24), a power supply box (25) is arranged in the shell (24), and the variable frequency water pump (2) and the ozone generator (21) are both electrically connected to the power supply box (25).

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