Liquid sampling device
By designing the sampling parts, flushing parts and steam conveying parts of the liquid sampling device, the problem of the water intake being affected by the external environment is solved, and high-precision seawater sampling is achieved, ensuring the authenticity and cleanliness of the sampled seawater.
Patent Information
- Application Number
- CN202510403505.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2025-07-11
AI Technical Summary
In the nautical water intake system, the water intake port is easily affected by the external marine environment, resulting in low accuracy of sampling seawater, unique water intake height, and insufficient authenticity of sampling seawater.
A liquid sampling device is designed, including sampling parts, flushing parts, drying parts and steam conveying parts. Each sub-pipe is independently cut off by a multi-way valve and a cut-off part, and rinsing with clean water, drying and high-temperature steam sterilization, ensuring the cleanliness and sterility of the sampling parts and preventing cross-contamination.
High-precision liquid sampling is achieved, avoiding blockage and pollution of the water inlet, ensuring the authenticity and cleanliness of the sampled seawater, and improving sampling accuracy.
Smart Images
Figure CN120293607A_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of liquid sampling, and particularly relates to a liquid sampling device. Background Art
[0002] The underway seawater intake system can provide uninterrupted and uncontaminated surface seawater for scientific laboratories and deck scientific research instruments, enabling scientists to carry out a series of measurements and samplings. To ensure the authenticity and cleanliness of the underway seawater, the layout position of the underway seawater intake is crucial. Due to the requirement of dynamic positioning for the ship, the bow is usually equipped with a lateral thruster. To avoid the influence of the lateral thruster on water intake, the underway seawater intake is usually arranged in front of the lateral thruster. It is easily affected by the external marine environment. When there is dirt, blockage or other situations at the water intake, the accuracy of the sampled seawater is not high, the water intake height is unique, and the authenticity of the sampled seawater is not precise enough. Summary of the Invention
[0003] The present invention provides a liquid sampling device capable of sampling seawater with high precision.
[0004] An embodiment of the present invention provides a liquid sampling device, including: a sampling component, including a first main pipeline, a plurality of first sub-pipelines, a first power component, a first multi-way valve, and a plurality of cutoff components. The first power component is arranged on the first main pipeline. The first main pipeline is communicated with the plurality of first sub-pipelines through the first multi-way valve. Each of the first sub-pipelines has a water inlet end far from the first main pipeline, and each of the cutoff components is respectively arranged on each of the first sub-pipelines; a flushing component communicated with the sampling component; a drying component communicated with the sampling component; and a steam delivery component communicated with the sampling component.
[0005] In some alternative embodiments, the cutoff component includes a manual cutoff valve and an electric cutoff valve. The electric cutoff valve is arranged at a position of each of the first sub-pipelines close to the water inlet end, and the manual cutoff valve is arranged between the electric cutoff valve and the water inlet end.
[0006] In some alternative embodiments, it further includes a plurality of first check valves, and each of the first check valves is arranged on the second sub-pipeline.
[0007] In some alternative embodiments, the first power component is a liquid pump.
[0008] In some alternative embodiments, the flushing component includes a clean water storage tank and a first delivery pipeline. One end of the first delivery pipeline is communicated with the clean water storage tank, and the other end of the first delivery pipeline is communicated with the first main pipeline or each of the first sub-pipelines.
[0009] In some alternative embodiments, the first conveying pipeline includes a second main pipeline, a second multi-way valve, a plurality of second sub-pipelines, a second check valve, and a second power component. One end of the second main pipeline is communicated with the purified water storage tank, and the other end of the second main pipeline is communicated with the plurality of second sub-pipelines through the second multi-way valve. Each of the second sub-pipelines is respectively communicated with the first sub-pipeline, and a check valve is provided in each of the second sub-pipelines, and the second power component is provided in the second main pipeline; alternatively, the second conveying pipeline includes a second main pipeline, one end of the second main pipeline is communicated with the purified water storage tank, and the other end is communicated with the first main pipeline, and the second power component and the second check valve are provided in the second main pipeline.
[0010] In some alternative embodiments, the drying component includes an air compressor and a second conveying pipeline. One end of the second conveying pipeline is connected to the air compressor, and the other end is communicated with the first main pipeline or each of the first sub-pipelines.
[0011] In some alternative embodiments, the second conveying pipeline includes a third main pipeline, a third multi-way valve, and a plurality of third sub-pipelines. One end of the third main pipeline is communicated with the air compressor, and the other end of the third main pipeline is communicated with the plurality of third sub-pipelines through the third multi-way valve. Each of the third sub-pipelines is respectively communicated with the first sub-pipeline; alternatively, the third conveying pipeline includes a third main pipeline, one end of the third main pipeline is communicated with the air compressor, and the other end is communicated with the first main pipeline.
[0012] In some alternative embodiments, the steam conveying component includes an evaporator and a third conveying pipeline. One end of the third conveying pipeline is communicated with the evaporator, and the other end is communicated with the first main pipeline or each of the first sub-pipelines.
[0013] In some alternative embodiments, the third conveying pipeline includes a fourth main pipeline, a fourth multi-way valve, and a plurality of fourth sub-pipelines. One end of the fourth main pipeline is communicated with the evaporator, and the other end of the fourth main pipeline is communicated with the plurality of fourth sub-pipelines through the fourth multi-way valve. Each of the fourth sub-pipelines is respectively communicated with the first sub-pipeline; alternatively, the fourth conveying pipeline includes a fourth main pipeline, one end of the fourth main pipeline is communicated with the evaporator, and the other end is communicated with the first main pipeline.
[0014] The beneficial effects brought by the present invention are as follows:
[0015] As can be seen from the above solution, an embodiment of the present invention provides a liquid sampling device. The liquid sampling device includes a sampling component, a flushing component, a drying component, and a steam delivery component. The sampling component includes a first main pipeline, a plurality of first sub-pipelines, a first power component, a first multi-way valve, and a plurality of stop components. The first power component is arranged on the first main pipeline. The first main pipeline is communicated with the plurality of first sub-pipelines through the first multi-way valve. Each first sub-pipeline has a water inlet end far from the first main pipeline. Each stop component is respectively arranged on each first sub-pipeline. The stop component independently cuts off each sub-pipeline to avoid the mixing of liquids at different sampling points. The flushing component is communicated with the sampling component. The flushing component clears the liquids remaining inside the first main pipeline and the plurality of first sub-pipelines. The drying component is communicated with the sampling component. The drying component removes the moisture inside the first main pipeline and the plurality of first sub-pipelines to prevent residual liquid. The steam delivery component is communicated with the sampling component. The steam delivery component sterilizes the inside of the first main pipeline and the plurality of first sub-pipelines to meet the aseptic sampling requirement, keep the inside of the sampling component clean, prevent cross-contamination and achieve high cleanliness, so as to be able to collect more real liquids and perform high-precision sampling on the liquids. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a schematic structural diagram of a liquid sampling device provided by an embodiment of the present invention;
[0017] Figure 2 is a schematic structural diagram of a flushing component provided by an embodiment of the present invention;
[0018] Figure 3 is a schematic structural diagram of a drying component provided by an embodiment of the present invention;
[0019] Figure 4 is a schematic structural diagram of a steam delivery component provided by an embodiment of the present invention.
[0020] In the figure, 1 - sampling component; 11 - first main pipeline; 12 - first sub-pipeline; 13 - manual stop valve; 14 - electric stop valve; 15 - first check valve; 16 - first power component; 2 - flushing component; 21 - clean water storage tank; 22 - second main pipeline; 23 - second sub-pipeline; 24 - second check valve; 25 - second power component; 3 - drying component; 31 - air compressor; 32 - third main pipeline; 33 - third sub-pipeline; 34 - third check valve; 35 - air bottle; 4 - steam delivery component; 41 - evaporator; 42 - fourth main pipeline; 43 - fourth sub-pipeline; 44 - fourth check valve. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0021] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
[0022] The underway seawater intake system can provide uninterrupted and uncontaminated surface seawater for scientific laboratories and deck scientific research instruments, enabling scientists to conduct a series of measurements and samplings. To ensure the authenticity and cleanliness of the underway seawater, the layout position of the underway seawater intake is crucial. Due to the requirement of dynamic positioning for the ship, side thrusters are usually equipped at the bow. To avoid the influence of the side thrusters on water intake, the underway seawater intake is usually arranged in front of the side thrusters. It is easily affected by the external marine environment. When the intake is contaminated, blocked, or in other situations, the accuracy of the sampled seawater is not high, the intake height is unique, and the authenticity of the sampled seawater is not precise enough.
[0023] The present invention provides a liquid sampling device capable of taking high-precision samples of seawater.
[0024] The following will specifically describe the liquid sampling device in conjunction with the Figures 1 to 4 description of the accompanying drawings of the specification.
[0025] The present invention provides a liquid sampling device, which includes: a sampling component 1, including a first main pipeline 11, a plurality of first sub-pipelines 12, a first power component 16, a first multi-way valve, and a plurality of cut-off components. The first power component 16 is arranged on the first main pipeline 11. The first main pipeline 11 is connected to the plurality of first sub-pipelines 12 through the first multi-way valve. Each first sub-pipeline 12 has a water inlet end far from the first main pipeline 11, and each cut-off component is respectively arranged on each first sub-pipeline 12; a flushing component 2, connected to the sampling component 1; a drying component 3, connected to the sampling component 1; a steam delivery component 4, connected to the sampling component 1.
[0026] Specifically, the liquid sampling device includes a sampling component 1, a flushing component 2, a drying component 3, and a steam transmission component 4. The sampling component 1 includes a first main pipeline 11, a plurality of first sub-pipelines 12, a first power component 16, a first multi-way valve, and a plurality of cutoff components. The first power component 16 is disposed on the first main pipeline 11. The first main pipeline 11 is communicated with the plurality of first sub-pipelines 12 through the first multi-way valve. Each first sub-pipeline 12 has a water inlet end far from the first main pipeline 11. Each cutoff component is respectively disposed on each first sub-pipeline 12. The cutoff component independently cuts off each sub-pipeline to prevent the mixing of liquids at different sampling points. The flushing component 2 is communicated with the sampling component. The flushing component 2 clears the liquid remaining inside the first main pipeline 11 and the plurality of first sub-pipelines 12. The drying component 3 is communicated with the sampling component. The drying component 3 removes the moisture inside the first main pipeline 11 and the plurality of first sub-pipelines 12 to prevent residual liquid. The steam transmission component 4 is communicated with the sampling component. The steam transmission component 4 sterilizes the inside of the first main pipeline 11 and the plurality of first sub-pipelines 12 to meet the aseptic sampling requirement, keep the inside of the sampling component 1 clean, prevent cross-contamination and maintain high cleanliness, so as to be able to collect more real liquid and perform high-precision sampling of the liquid.
[0027] Furthermore, the first main pipeline 11 and the branched first sub-pipelines 12 are centrally driven by the first power component 16, reducing the energy consumption of the decentralized sampling equipment. The drying component 3 thoroughly dries the pipeline to avoid blockage of the pipeline by medium crystallization (such as brine, molten sulfur).
[0028] In some alternative embodiments, the cutoff component includes a manual cutoff valve 13 and an electric cutoff valve 14. The electric cutoff valve 14 is disposed at a position close to the water inlet end of each first sub-pipeline 12, and the manual cutoff valve 13 is disposed between the electric cutoff valve 14 and the water inlet end.
[0029] Specifically, the combination of the manual cutoff valve 13 and the electric cutoff valve 14, and the layout method with the electric valve close to the main pipeline and the manual valve close to the water inlet end further improves the safety, operation flexibility, and fault tolerance of the system. The electric cutoff valve 14 serves as the main cutoff valve, with fast response, controlled by PLC or remote signal. In case of emergencies such as leakage or overpressure, it can instantly cut off the pipeline to prevent the diffusion of dangerous media. When the electric valve has faults such as power failure or jamming, the manual valve provides physical isolation to ensure that the medium does not leak during maintenance. The electric cutoff valve 14 is close to the main pipeline side. Closing the electric cutoff valve 14 first can reduce the reverse flow of the residual liquid in the main pipeline into the sub-pipeline and reduce the pollution risk. The manual cutoff valve 13 is close to the water inlet end. When the device is out of use for a long time or the sampling point is changed, the manual valve completely cuts off the external medium source to prevent impurities such as particles and microorganisms from the outside from invading the pipeline system. The manual cutoff valve 13 and the electric cutoff valve 14 are coordinated to optimize the medium cleanliness and avoid cross-contamination.
[0030] In some alternative embodiments, it further includes a plurality of first check valves 15, and each first check valve 15 is disposed in the first sub-pipeline 12.
[0031] Specifically, the addition of the first check valve 15 in the first sub-pipeline 12 forms a three-stage fluid control barrier together with the existing manual stop valve 13 and electric stop valve 14, further enhancing the anti-backflow, anti-pollution and safety of the system. When the sampling is completed or the pipeline pressure is abnormal, such as a sudden drop in the main pipeline pressure, the first check valve 15 automatically closes, physically preventing the reverse flow of the liquid and avoiding cross-contamination.
[0032] In some alternative embodiments, the first power component 16 is a liquid pump.
[0033] Specifically, the first power component 16 is a liquid pump. The liquid pump provides a constant flow rate through motor or pneumatic drive, avoiding sampling volume errors caused by pipeline pressure fluctuations. The liquid pump is a two-way gear pump that can run in reverse to backwash the dead corners of the pipeline and improve the cleaning efficiency.
[0034] In some alternative embodiments, the flushing component 2 includes a clean water storage tank 21 and a first delivery pipeline. One end of the first delivery pipeline is communicated with the clean water storage tank 21, and the other end of the first delivery pipeline is communicated with the first main pipeline 11 or each first sub-pipeline 12.
[0035] Specifically, the flushing component 2 adopts the design of the clean water storage tank 21 and the first delivery pipeline and is communicated with the first main pipeline 11 or the first sub-pipeline 12, significantly improving the cleaning efficiency, anti-pollution ability and operation convenience of the system. The clean water is directly injected into the first main pipeline 11 or the first sub-pipeline 12 through the first delivery pipeline to specifically flush the residual medium after sampling, such as high-viscosity liquids and easily crystallizable solutes, to avoid cross-contamination. When the flushing component 2 is linked with the liquid pump, the flushing pressure and flow rate can be adjusted, such as in the high-pressure pulse mode, to remove the sediment in the dead corners of the pipeline, clean the first main pipeline 11, prevent the residue from affecting subsequent sampling points, independently flush each first sub-pipeline 12, and adapt to multi-medium scenarios. Timely flushing avoids blockage of the pipeline caused by the drying up of the residual medium.
[0036] In some alternative embodiments, the first conveying pipeline includes a second main pipeline 22, a second multi-way valve, a plurality of second sub-pipelines 23, a second check valve 24, and a second power component 25. One end of the second main pipeline 22 is communicated with the purified water storage tank 21, and the other end of the second main pipeline 22 is communicated with the plurality of second sub-pipelines 23 through the second multi-way valve. Each of the second sub-pipelines 23 is respectively communicated with the first sub-pipeline 12. Check valves are provided in each of the second sub-pipelines 23, and a second power component 25 is provided in the second main pipeline 22; alternatively, the second conveying pipeline includes the second main pipeline 22. One end of the second main pipeline 22 is communicated with the purified water storage tank 21, and the other end is communicated with the first main pipeline 11. The second power component 25 and the second check valve 24 are provided in the second main pipeline 22.
[0037] Specifically, each second sub-pipeline 23 is connected to the corresponding first sub-pipeline 12 through the second multi-way valve, and can wash a specific sampling point separately to avoid the cross-flow of the cleaning liquid. The second sub-pipeline 23 is communicated with the first sub-pipeline 12, and cooperates with the stop valve and the check valve of the first sub-pipeline 12 to form a two-way isolation. The second check valve 24 prevents the sewage after flushing from flowing back into the purified water storage tank 21 to ensure the purity of the flushing water source. The second power component 25 provides a stable pressure to ensure the uniform flushing flow rate of each branch and avoid incomplete cleaning of the distal sub-pipeline.
[0038] Optionally, the flushing liquid is directly injected into the first main pipeline 11 through the second main pipeline 22, and the original main pipeline is used to flow to clean all sub-pipelines, reducing the number of valves and pipelines. It is applicable to fast large-flow flushing and low-pollution-risk media, and the whole system can be cleaned through one-time flushing. During flushing, only the flow direction of the second power component 25 needs to be switched, and the liquid pump runs in the reverse direction to push the flushing water.
[0039] Furthermore, the flushing component 2 further includes a second power component 25 and a plurality of second check valves 24. The second power component 25 is located in the second main pipeline 22, and each of the second check valves 24 is provided corresponding to the second sub-pipeline 23.
[0040] In some alternative embodiments, the drying component 3 includes an air compressor 31 and a second conveying pipeline. One end of the second conveying pipeline is connected to the air compressor 31, and the other end is communicated with the first main pipeline 11 or each first sub-pipeline 12.
[0041] Specifically, the high-pressure drying gas (such as compressed air, nitrogen) generated by the air compressor 31 is injected into the sampling component through the second conveying pipeline to purge the residual liquid. The flushing component 2 uses purified water or a solvent to remove the residue in the pipeline. The drying component 3 immediately introduces the drying gas to avoid water stain residue. The drying component 3 and the flushing component 2 cooperate to form a "flushing - purging - drying" closed-loop process, which is especially suitable for high-purity media.
[0042] In some alternative embodiments, the second delivery pipeline includes a third main pipeline 32, a third multi-way valve, and a plurality of third sub-pipelines 33. One end of the third main pipeline 32 communicates with the air compressor 31, and the other end of the third main pipeline 32 communicates with the plurality of third sub-pipelines 33 through the third multi-way valve. Each of the third sub-pipelines 33 communicates with the first sub-pipeline 12 respectively; alternatively, the third delivery pipeline includes the third main pipeline 32. One end of the third main pipeline 32 communicates with the air compressor 31, and the other end communicates with the first main pipeline 11.
[0043] Specifically, each third sub-pipeline 33 is connected to the corresponding first sub-pipeline 12 through the third multi-way valve, which can dry specific sampling points individually and save gas consumption. The third sub-pipeline 33 communicates with the first sub-pipeline 12 and cooperates with the stop valve + check valve of the first sub-pipeline 12 to form a closed drying circuit. The drying gas directly enters the first main pipeline 11 through the third main pipeline 32 and is naturally distributed to each sub-pipeline by the main pipeline branch. Alternatively, the third main pipeline 32 communicates with the first main pipeline 11 and is naturally distributed to each sub-pipeline by the main pipeline branch, reducing the number of valves and pipelines, which is suitable for regular comprehensive maintenance. The air compressor 31 provides gas with a pressure of 0.5 - 1 MPa, effectively removing the residual liquid film on the pipeline wall.
[0044] Further, the drying component 3 further includes an air bottle 35 and a third check valve 34. The air bottle 35 is arranged on the third main pipeline 32. The air bottle 35 is used to receive the air transmitted by the air compressor 31. A plurality of third check valves 34 are respectively arranged corresponding to the plurality of third sub-pipelines 33 one by one.
[0045] In some alternative embodiments, the steam delivery component 4 includes an evaporator 41 and a third delivery pipeline. One end of the third delivery pipeline communicates with the evaporator 41, and the other end communicates with the first main pipeline 11 or each of the first sub-pipelines 12.
[0046] Specifically, through the design of the evaporator 41 and the third delivery pipeline, and by communicating with the first main pipeline 11 or the first sub-pipeline 12, the steam delivery component 4 realizes a comprehensive improvement in the high-temperature sterilization, residue removal, and system maintenance of the sampling component. The high-temperature steam generated by the evaporator 41 is injected into the sampling component through the third delivery pipeline, thoroughly inactivating bacteria, viruses, and spores. The steam can penetrate into difficult-to-rinse areas such as pipeline dead ends. The high-temperature steam softens or dissolves viscous residues, making it easier to remove them in combination with subsequent flushing. The thermal expansion and contraction effect of the steam causes the crystals such as salts and sugars on the inner wall of the pipeline to disintegrate and fall off, preventing blockage.
[0047] The steam delivery component 4, the flushing component 2, and the drying component 3 cooperate to form a closed-loop cleaning process. The flushing component 2 uses clean water to remove surface residues, and the steam delivery component 4 uses high-temperature steam to decompose deep contaminants. The drying component 3 uses compressed gas to blow out condensed water. The steam delivery component 4 performs regular steam sterilization to prevent microorganisms from forming biofilms on the inner wall of the pipeline. Steam is used to replace strong acids and alkalis for cleaning, reducing the corrosion risk of valves and pipelines.
[0048] In some alternative embodiments, the third delivery pipeline includes a fourth main pipeline 42, a fourth multi-way valve, and multiple fourth sub-pipelines 43. One end of the fourth main pipeline 42 is connected to the evaporator 41, and the other end of the fourth main pipeline 42 is connected to the multiple fourth sub-pipelines 43 through the fourth multi-way valve. Each of the fourth sub-pipelines 43 is respectively connected to the first sub-pipeline 12; alternatively, the fourth delivery pipeline includes a fourth main pipeline 42, one end of the fourth main pipeline 42 is connected to the evaporator 41, and the other end is connected to the first main pipeline 11.
[0049] Specifically, the fourth sub-pipeline 43 is connected to the first sub-pipeline 12. Each fourth sub-pipeline 43 is connected to the corresponding first sub-pipeline 12 through the fourth multi-way valve, enabling individual sterilization of specific sampling points, precise and targeted sterilization, and avoiding resource waste; during sterilization, only the target pipeline needs to be opened, and other pipelines remain closed, preventing the spread of steam-borne contaminants and avoiding cross-contamination. The fourth main pipeline 42 is connected to the first main pipeline 11, enabling full coverage with single-point injection. Steam directly enters the first main pipeline 11 through the fourth main pipeline 42 and is naturally distributed to each sub-pipeline through the main pipeline branches, reducing the number of valves and pipelines; suitable for regular comprehensive sterilization.
[0050] Furthermore, the steam delivery component 4 further includes multiple fourth check valves 44, and the fourth check valves 44 are disposed in the fourth sub-pipelines 43.
[0051] The above are the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art of this technology, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as within the protection scope of the present invention.
Claims
1. A liquid sampling device, characterized in that, Comprising: A sampling component (1), including a first main pipeline (11), a plurality of first sub-pipelines (12), a first power component (16), a first multi-way valve, and a plurality of cutoff components. The first power component (16) is disposed on the first main pipeline (11). The first main pipeline (11) is communicated with the plurality of first sub-pipelines (12) through the first multi-way valve. Each of the first sub-pipelines (12) has a water inlet end away from the first main pipeline (11), and each of the cutoff components is respectively disposed on each of the first sub-pipelines (12); A flushing component (2), communicated with the sampling component (1); A drying component (3), communicated with the sampling component (1); A steam delivery component (4), communicated with the sampling component (1).
2. The liquid sampling device according to claim 1, wherein The cutoff component includes a manual cutoff valve (13) and an electric cutoff valve (14). The electric cutoff valve (14) is disposed at a position of each of the first sub-pipelines (12) close to the water inlet end, and the manual cutoff valve (13) is disposed between the electric cutoff valve (14) and the water inlet end.
3. The liquid sampling device according to claim 2, characterized in that It further includes a plurality of first check valves (15), and each of the first check valves (15) is disposed on the first sub-pipeline (12).
4. The liquid sampling device according to claim 3, characterized in that, The first power component (16) is a liquid pump.
5. The liquid sampling device according to claim 1, wherein The flushing component (2) includes a clean water storage tank (21) and a first delivery pipeline. One end of the first delivery pipeline is communicated with the clean water storage tank (21), and the other end of the first delivery pipeline is communicated with the first main pipeline (11) or each of the first sub-pipelines (12).
6. The liquid sampling device according to claim 5, wherein, The first delivery pipeline includes a second main pipeline (22), a second multi-way valve, a plurality of second sub-pipelines (23), a second check valve (24), and a second power component (25). One end of the second main pipeline (22) is communicated with the clean water storage tank (21), and the other end of the second main pipeline (22) is communicated with the plurality of second sub-pipelines (23) through the second multi-way valve. Each of the second sub-pipelines (23) is respectively communicated with the first sub-pipeline (12). A check valve is disposed on each of the second sub-pipelines (23), and the second power component (25) is disposed on the second main pipeline (22); Or, the second delivery pipeline includes a second main pipeline (22). One end of the second main pipeline (22) is communicated with the clean water storage tank (21), and the other end is communicated with the first main pipeline (11). The second power component (25) and the second check valve (24) are disposed on the second main pipeline (22).
7. The liquid sampling device according to claim 1, wherein, The drying component (3) includes an air compressor (31) and a second delivery pipeline. One end of the second delivery pipeline is connected to the air compressor (31), and the other end is communicated with the first main pipeline (11) or each of the first sub-pipelines (12).
8. The liquid sampling device according to claim 7, characterized in that, The second delivery pipeline includes a third main pipeline (32), a third multi-way valve, and a plurality of third sub-pipelines (33). One end of the third main pipeline (32) is communicated with the air compressor (31), and the other end of the third main pipeline (32) is communicated with the plurality of third sub-pipelines (33) through the third multi-way valve. Each of the third sub-pipelines (33) is respectively communicated with the first sub-pipeline (12); Alternatively, the third delivery pipeline includes a third main pipeline (32). One end of the third main pipeline (32) is communicated with the air compressor (31), and the other end is communicated with the first main pipeline (11).
9. The liquid sampling device according to claim 1, wherein The steam delivery component (4) includes an evaporator (41) and a third delivery pipeline. One end of the third delivery pipeline is communicated with the evaporator (41), and the other end is communicated with the first main pipeline (11) or each of the first sub-pipelines (12).
10. The liquid sampling device according to claim 9, characterized in that, The third delivery pipeline includes a fourth main pipeline (42), a fourth multi-way valve, and a plurality of fourth sub-pipelines (43). One end of the fourth main pipeline (42) is communicated with the evaporator (41), and the other end of the fourth main pipeline (42) is communicated with the plurality of fourth sub-pipelines (43) through the fourth multi-way valve. Each of the fourth sub-pipelines (43) is respectively communicated with the first sub-pipeline (12); or the fourth delivery pipeline includes a fourth main pipeline (42). One end of the fourth main pipeline (42) is communicated with the evaporator (41), and the other end is communicated with the first main pipeline (11).