CN114235491B - Deep sea water body sequence sampler with horizontally arranged cavities - Google Patents
Deep sea water body sequence sampler with horizontally arranged cavities Download PDFInfo
- Publication number
- CN114235491B CN114235491B CN202111360545.XA CN202111360545A CN114235491B CN 114235491 B CN114235491 B CN 114235491B CN 202111360545 A CN202111360545 A CN 202111360545A CN 114235491 B CN114235491 B CN 114235491B
- Authority
- CN
- China
- Prior art keywords
- sampling
- outlet
- gear
- inlet
- sample
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000013535 sea water Substances 0.000 title claims abstract description 24
- 238000005070 sampling Methods 0.000 claims abstract description 175
- 238000006073 displacement reaction Methods 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 11
- 239000002775 capsule Substances 0.000 claims description 4
- 239000009728 shiwei Substances 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 description 11
- 230000008901 benefit Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000011160 research Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012864 cross contamination Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000002068 genetic effect Effects 0.000 description 1
- 150000004677 hydrates Chemical class 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012625 in-situ measurement Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052976 metal sulfide Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N2001/1031—Sampling from special places
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a deep sea water body sequence sampler with horizontally arranged cavities, which comprises a circular mounting plate and a plurality of sampling units uniformly arranged on the mounting plate along the circumferential direction; the inlet and the outlet of the sampling unit penetrate through the mounting plate and then are fixed with the mounting plate; an inlet ball valve arranged at the inlet is connected with a sample inlet gear through a first connecting rod; an outlet ball valve arranged at the outlet is connected with a sample outlet gear through a second connecting rod; the mounting plate is also provided with a motor driving unit, an output shaft of the motor driving unit passes through the circle center of the mounting plate and then is fixed with an incomplete bevel gear, the outer end of the incomplete bevel gear is provided with a narrow rack which is narrower in radial direction and a wide rack which is wider in radial direction, the narrow rack is matched with the sample outlet gear, and the wide and narrow strips are respectively matched with the sample outlet gear and the sample inlet gear. The invention can control the opening and closing of the inlet ball valve and the outlet ball valve simultaneously by only one set of mechanism, and improves the performance and displacement effect of the sampler while simplifying the structure.
Description
Technical Field
The invention belongs to the technical field of deep-sea water sampling, and particularly relates to a deep-sea water sequence sampler with horizontally arranged cavities.
Background
With the development of socioeconomic performance and the increasing world population, humans have made excessive exploitation of land resources. The ocean reserves abundant mineral resources, energy sources, organisms and other resources, and has important significance for the development of social economy.
The submarine hydrothermal solution is the combination of geothermal heated water and a crack eruption port thereof sprayed out from the seabed, is a window for exchanging substances and energy between the ocean and the crust, and has high research value on the influence of the ocean physicochemical environment, ocean circulation and even global climate. Special ecosystems and genetic resources near deep sea hydrothermal solutions are also receiving attention from students in various fields such as biology and medicine. The special multi-metal sulfide ore deposit formed in the hydrothermal activity area has extremely high scientific research and economic value.
Deep sea cold springs are similar in motion to deep sea hot liquids, with the "cold" of a cold spring being a relatively hot liquid, typically at a temperature 2-4 ℃ higher than the surrounding sea water. Cold spring formation is closely linked to methane breakthrough, and strong methane blowby areas typically store high saturation hydrates. At present, the research on deep sea hot liquid, cold spring and other bottom water bodies mainly comprises in-situ measurement of a hot liquid port and retrieval of an obtained sample to a laboratory for analysis, and compared with the former, the method has more advantages in measurement accuracy and detection range.
The collection of high quality deep sea water samples requires a precision water sampler, which requires good ability to retain the gaseous components of the water sample and prevent contamination by inhaled impurities. At present, various water sampling devices have been developed at home and abroad, and although the sampling devices generally have a prominent advantage on one aspect, the existing many sampling devices cannot well meet the requirements in consideration of the complex and severe environment of deep sea.
The Chinese patent document with publication number CN110736645A discloses a deep sea water body sequence sampling device with a through-flow structure, which belongs to the technical field of deep sea water sampling equipment and comprises an outer frame, a plurality of water collectors which are independently arranged in the outer frame and a controller for controlling the water sampling process; the water sampler comprises a sampling cavity, an inlet ball valve and an outlet ball valve which are respectively arranged at two ends of the sampling cavity, wherein the inlet ball valves of all samplers are connected to a sampling nozzle through a first pipeline, and the outlet ball valves of all samplers are connected to a sampling pump through a second pipeline; the outer frame is internally provided with a first switch component for sequentially controlling the inlet ball valves of all the samplers and a second switch component for sequentially controlling the outlet ball valves of all the samplers.
The sampling speed can be effectively controlled by adopting the design of flow-through sequence sampling, dead zone residual liquid is reduced, cross contamination is avoided, the improvement of sample purity is facilitated, and the sample displacement effect is improved. However, the structure is complex, the vertical sampling cavity needs a set of trigger mechanism at the inlet ball valve and the outlet ball valve respectively, and the volume of the matched belt transmission mechanism is large.
Disclosure of Invention
The invention provides a deep sea water body sequence sampler with horizontally arranged cavities, which can simultaneously control the opening and closing of an inlet ball valve and an outlet ball valve by only one set of mechanism, so that the performance and displacement effect of the whole sampler are improved while the structure is simplified and the whole volume is reduced.
A deep sea water body sequence sampler with horizontally arranged cavities comprises a circular mounting plate and a plurality of sampling units uniformly arranged on the mounting plate along the circumferential direction;
each sampling unit comprises a first sampling cavity and a second sampling cavity, and an outlet of the first sampling cavity is connected with an inlet of the second sampling cavity through a connecting pipe; the inlet of the first sampling cavity is used as a sample inlet of the sampling unit, and the outlet of the second sampling cavity is used as a sample outlet of the sampling unit;
the inlet of the first sampling cavity and the outlet of the second sampling cavity penetrate through the mounting plate and then are fixed with the mounting plate; an inlet ball valve is arranged at the inlet of the first sampling cavity and is connected with a sample inlet gear through a first connecting rod; an outlet ball valve is arranged at the outlet of the second sampling cavity and is connected with a sample outlet gear through a second connecting rod; the gear ends of the first connecting rod and the second connecting rod are arranged towards the circle center of the mounting plate, and the length of the first connecting rod is longer than that of the second connecting rod;
the motor driving unit is further arranged on the mounting plate, an output shaft of the motor driving unit penetrates through the circle center of the mounting plate and then is fixed with the incomplete bevel gear, a narrow rack with a narrower radial direction and a wide rack with a wider radial direction are arranged at the outer end of the incomplete bevel gear, and the narrow rack is matched with the sample outlet gear and is used for closing the outlet ball valve in the rotation process; the wide and narrow strips are respectively matched with the sample outlet gear and the sample inlet gear and are used for opening the outlet ball valve or closing the inlet ball valve in the rotation process.
Further, four groups of sampling units are arranged on the mounting plate, and four first sampling cavities and four second sampling cavities are uniformly and alternately arranged on the mounting plate along the circumferential direction.
Further, the inlet of the first sampling cavity and the outlet of the second sampling cavity are vertically fixed with the mounting plate, the first sampling cavity and the second sampling cavity are horizontal in the use state, and the inlet of each sampling cavity is arranged below the outlet.
Further, the sample outlet is connected with the sampling pump through the flow guide pipe, and during sampling, the sampling pump is started to pump the sample water into the first sampling cavity and the second sampling cavity.
Further, the sample inlet gear and the sample outlet gear have the same structure, and the lengths of the narrow rack and the wide rack along the circumferential direction are equal and are one fourth of the outer circumferences of the sample inlet gear and the sample outlet gear.
Further, the incomplete bevel gear is matched with the sample inlet gear and the sample outlet gear; the following two stages are provided during the counterclockwise rotation of the incomplete bevel gear:
the first stage, the wide rack drives the sample outlet gear of the current sampling unit to rotate, so that the sample outlet gear rotates for 90 degrees and then the outlet ball valve is opened, and at the moment, the narrow rack is staggered with the sample inlet gear of the previous sampling unit in the rotation process; the sampling port and the sampling outlet of the current sampling unit are both opened for sampling displacement, and a water body sample enters from the sampling port;
and in the second stage, after the current sampling unit finishes sampling, the incomplete bevel gear continues to rotate anticlockwise, the wide rack drives the sample inlet gear of the current sampling unit to rotate, so that the sample inlet gear rotates by 90 degrees and then the inlet ball valve is closed, and at the moment, the narrow rack simultaneously drives the sample outlet gear of the current sampling unit to rotate, so that the sample outlet gear rotates by 90 degrees and then the outlet ball valve is closed.
Preferably, the inlet ball valve and the outlet ball valve are all multipurpose ball valves provided by Shiwei lock.
Preferably, the driving motor of the motor driving unit is installed in a sealed cabin in a dynamic sealing mode, the sealed cabin comprises a front end cover, a cabin body and a rear end cover, an output shaft of the driving motor is in dynamic sealing with the front end cover through an O-shaped ring, and the front end cover is fixed with the mounting plate.
Preferably, the outlet of the first sampling cavity is connected with the inlet of the second sampling cavity through a connecting pipe with an intermediate ball valve.
Preferably, the inlet ball valve and the first sampling cavity and the outlet ball valve and the second sampling cavity are connected through screw thread-cutting sleeve connectors; the first sampling cavity and the second sampling cavity are in the shape of an outer cylinder and an inner capsule.
Compared with the prior art, the invention has the following beneficial effects:
the invention utilizes a flow-through sequence sampling mode, can effectively control the sampling speed, reduce dead zone residual liquid, avoid cross contamination and is beneficial to the improvement of sample purity; through setting up the sampling chamber that horizontal arrangement, set up simultaneously with the entry ball valve be connected the sample inlet gear, with the play appearance mouth gear of export ball valve be connected, with sample inlet gear and play appearance mouth gear complex incomplete bevel gear to reduce the device volume greatly, only need a set of mechanism can control the switching of entry ball valve and export ball valve simultaneously, also promoted trigger mechanism's performance and displacement effect when simplifying the structure, reducing whole volume.
Drawings
FIG. 1 is a front view of a deep sea water body sequence sampler in an embodiment of the invention;
FIG. 2 is a schematic diagram of a structure of each sampling unit according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a water sample flow direction of each sampling unit according to an embodiment of the present invention;
FIG. 4 is a side view of a deep sea water body sequence sampler in an embodiment of the invention;
FIG. 5 is a schematic view of a mounting plate according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of the internal structure of a sampling cavity according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a motor driving unit according to an embodiment of the present invention.
Detailed Description
The invention will be described in further detail with reference to the drawings and examples, it being noted that the examples described below are intended to facilitate the understanding of the invention and are not intended to limit the invention in any way.
As shown in fig. 1, a deep sea water body sequence sampler with horizontally arranged cavities comprises a circular mounting plate 1 and a plurality of sampling units 2 uniformly arranged on the mounting plate 1 along the circumferential direction.
As shown in fig. 2, each sampling unit 2 comprises a first sampling cavity 3 and a second sampling cavity 4, wherein the outlet of the first sampling cavity 3 is connected with the inlet of the second sampling cavity through a connecting pipe 5 with an intermediate ball valve 18; the inlet 6 of the first sampling cavity 3 is used as a sample inlet of the sampling unit 2, and the outlet 7 of the second sampling cavity 4 is used as a sample outlet of the sampling unit 2.
The direction of water flow in the sampling unit is shown in fig. 3, and the water body sample flows in from the inlet 6 of the first sampling cavity 3 and flows out from the outlet 7 of the second sampling cavity 4. For the first sampling cavity 3 and the second sampling cavity 4, the inlets are all arranged below the sampling cavities, the outlets are all arranged above the sampling cavities, so that heavy liquid is facilitated to displace light liquid from bottom to top, and the displacement efficiency is improved.
As shown in fig. 4 and 5, eight U-shaped mounting openings 8 are uniformly provided at the circumferential edge of the mounting plate 1 for fixedly mounting the first sampling chamber 3 and the second sampling chamber 4 in the sampling unit 2. Specifically, the inlet 6 of the first sampling cavity 3 and the outlet 7 of the second sampling cavity 4 pass through the U-shaped mounting opening 8 of the mounting plate 1 and then are fixed with the mounting plate 1.
An inlet ball valve 9 is arranged at the inlet of the first sampling cavity 3, and the inlet ball valve 9 is connected with a sample inlet gear 13 through a first connecting rod 11; an outlet ball valve 10 is arranged at the outlet of the second sampling cavity 4, and the outlet ball valve 10 is connected with a sample outlet gear 14 through a second connecting rod 12. The gear ends of the first connecting rod 11 and the second connecting rod 12 are arranged towards the center of the mounting plate 1, and the length of the first connecting rod 11 is longer than that of the second connecting rod 12, namely the sample inlet gear 13 is closer to the center of the mounting plate 1.
The mounting plate 1 is also provided with a motor driving unit 20, an output shaft 21 of the motor driving unit 20 penetrates through the circle center of the mounting plate 1 and then is fixed with an incomplete bevel gear 15, the outer end of the incomplete bevel gear 15 is provided with a narrow rack 16 with a narrower radial direction and a wide rack 17 with a wider radial direction, and the narrow rack 16 is matched with the sample outlet gear 14 and is used for closing the outlet ball valve 10 in the rotation process; the wide and narrow strips 17 are respectively matched with the sample outlet gear 14 and the sample inlet gear 13 for opening the outlet ball valve 10 or closing the inlet ball valve 9 during rotation.
In this embodiment, four groups of sampling units 2 are provided on the mounting plate 1, and four first sampling chambers 3 and four second sampling chambers 4 are uniformly and alternately arranged on the mounting plate 1 in the circumferential direction.
The inlet of the first sampling cavity 3 and the outlet of the second sampling cavity 4 are vertically fixed with the mounting plate 1, the first sampling cavity 3 and the second sampling cavity 4 are horizontal under the use state, and the inlet of each sampling cavity is arranged below the outlet.
The sample inlet gear 13 and the sample outlet gear 14 have the same structure, and the lengths of the narrow rack 16 and the wide rack along the circumferential direction are equal and are one quarter of the outer circumferences of the sample inlet gear and the sample outlet gear. Therefore, the rack can rotate 90 degrees when driving the corresponding teeth to rotate, and the switch control of the ball valve is achieved.
The sampling outlet of the sampling unit is connected with a sampling pump through a flow guide pipe, and when sampling is carried out, a sample water body is pumped into the first sampling cavity and the second sampling cavity by starting the sampling pump.
The sampling cavity is designed into an outer cylinder and inner capsule type shown in fig. 6, so that the vicinity of the cutting sleeve pipe is a plane, and the processing or welding is convenient.
The incomplete bevel gear 15 is matched with the sample inlet gear 13 and the sample outlet gear 14; there are the following two stages during the counterclockwise rotation of the incomplete bevel gear 15:
in the first stage, the wide rack 17 drives the sample outlet gear 14 of the current sampling unit to rotate, so that the outlet ball valve 10 is opened after the sample outlet gear 14 rotates by 90 degrees, and at the moment, the narrow rack 16 is staggered with the sample inlet gear of the previous sampling unit in the rotating process; the sample inlet and the sample outlet of the current sampling unit are opened for sampling displacement, and a water body sample enters from the sample inlet.
In the second stage, after the current sampling unit finishes sampling, the incomplete bevel gear 15 continues to rotate anticlockwise, the wide rack 17 drives the sample inlet gear 13 of the current sampling unit to rotate, the inlet ball valve 9 is closed after the sample inlet gear 13 rotates by 90 degrees, at the moment, the narrow rack drives the sample outlet gear 14 of the current sampling unit to rotate at the same time, and the outlet ball valve 10 is closed after the sample outlet gear 14 rotates by 90 degrees.
The whole operation process of one sampling unit is finished, and the like can finish the sampling flow of a plurality of sampling units.
The motor driving unit 20 is structured as shown in fig. 7, and an output shaft 21 is used to drive the rotation of the incomplete bevel gear 15 to control the sample inlet gear 13 and the sample outlet gear 14.
The driving motor 26 of the motor driving unit is installed in the sealed cabin in a dynamic sealing mode, and a driving motor installation disc 24 is installed in the sealed cabin and used for fixing the driving motor 26 and a driver 27. The sealed cabin comprises a front end cover 22, a cabin body 25 and a rear end cover 28, wherein an output shaft 21 of a driving motor 26 is in dynamic seal with the front end cover 22 through an O-shaped ring 23, and the front end cover 22 is fixed with the mounting plate 1.
Since the sampler is required to operate in an underwater environment, the driving motor 26 is required to be installed in a corresponding sealed cabin, and a high-voltage-resistant deep-sea motor unit is required to be equipped in the case of deep-sea operation. The output shaft 21 of the driving motor 26 needs to realize reliable dynamic sealing while outputting rotary motion, and an O-ring seal is generally used, and the O-ring contracts to hold the rotating shaft in a tight manner due to friction heat generated during operation of the rotating shaft, so that damage to the O-ring and the rotating shaft is easily generated, and sealing failure is caused. In order to solve the problem, a polytetrafluoroethylene slip ring is used on the basis of O-shaped ring sealing, and the characteristics of favorable self-lubricity, wear resistance and adhesion with a metal surface of polytetrafluoroethylene are utilized to obtain a sealing form with higher reliability and longer service life. The motor mounting plate 24 is fixed in the cabin body, the motor is fixed on the motor mounting plate, and the output shaft extends out of the front end cover 22 of the sealed cabin and is in dynamic seal with the front end cover through an O-shaped ring. The front end cover, the rear end cover and the cabin body are kept sealed by sliding friction between a static ring and a dynamic ring.
In this example, a 36GP-42H250B08 planetary reduction stepper motor was selected, and a model 7TPSM4220 drive was also selected. The motor is fixed with the front end cover 22 through a motor mounting plate and a stud, and the motor outputs power to the output shaft 21 through a coupler. The output shaft has a shoulder that is pressed against the front end cap by a thrust bearing, thereby avoiding the transfer of hydrostatic pressure to the internal motor. Dynamic seal is realized between the output shaft and the front end cover through the Gelai ring, and static seal is realized between the front end cover, the rear end cover and the bin body through the O-shaped ring. The motor driver is integrally installed with the motor, a driver control signal is connected to the control cabin through a watertight connector and a watertight cable, and an exhaust nut is installed on the other opening of the rear end cover so as to facilitate installation.
In the invention, when four or more sampling units are triggered, only one motor driving unit is needed, and the invention has certain advantages in the aspects of the multiplexing degree and the light weight of the mechanism. Compared with the vertical type, the horizontal sampling cavity can simultaneously control the opening and closing of the inlet ball valve and the outlet ball valve by only one set of mechanism. The sampling operation is completed through a sample inlet gear connected with the inlet ball valve, a sample outlet gear connected with the outlet ball valve and an incomplete bevel gear matched with the sample inlet gear and the sample outlet gear, and the motor drives the rotating shaft to drive the incomplete bevel gear to trigger and close each sampling unit in sequence.
In the sampling unit, the shape of the sampling cabin is a capsule in the outer cylinder, so that a plane is arranged near the cutting sleeve pipe, the processing or welding is convenient, an inlet ball valve and an outlet ball valve of the sampling unit are positioned on the same side, and the inlet ball valve and the outlet ball valve can be controlled simultaneously by using one trigger mechanism. The inlet is arranged below the cabin body, and the outlet is arranged above the cabin body, so that the efficiency of displacing the light liquid from the lower part by the heavy liquid is improved, and the flushing of pollutants is facilitated.
In this embodiment, the inlet ball valve and the outlet ball valve are multi-purpose ball valves provided by Shiwei lock as sealing mechanisms for the water sampler. The ball valve is sealed by a sealing surface formed by the stainless steel floating ball and the spring-loaded PEEK valve seat, can provide reliable shutoff under the working pressure of 41.3MPa, and has the advantage of lower switching torque compared with the same type of products. The sampling cavity is connected with the ball valve through the screw thread-cutting sleeve adapter, and the cutting sleeve pipe is in contact with the metal surface to realize sealing, so that sealing materials such as O-shaped rings are not involved, the sampling channel has high-temperature resistance and corrosion resistance, and meanwhile, the influence of materials of the sampling channel on organic carbon in hot liquid and cold spring is avoided, so that the sampler can be well used for researching organic components in a sample. The hinge structure used for sealing the clamping sleeve pipe has the very important characteristic that the axial force of the nut is converted into the radial extrusion action on the clamping sleeve pipe through the hinge deconstructing, and the hinge structure plays an important force amplifying role in the process, so that very reliable sealing can be realized only by smaller assembly torque during operation. On the sampling channel, two sampling cavities need to be disassembled for analysis after sampling is completed, and the clamping sleeve pipe sealing structure can enable operators to conveniently and rapidly disassemble the two sampling cavities and participate in sample transfer.
The foregoing embodiments have described in detail the technical solution and the advantages of the present invention, it should be understood that the foregoing embodiments are merely illustrative of the present invention and are not intended to limit the invention, and any modifications, additions and equivalents made within the scope of the principles of the present invention should be included in the scope of the invention.
Claims (10)
1. The deep sea water body sequence sampler with horizontally arranged cavities is characterized by comprising a circular mounting plate and a plurality of sampling units which are uniformly arranged on the mounting plate along the circumferential direction;
each sampling unit comprises a first sampling cavity and a second sampling cavity, and an outlet of the first sampling cavity is connected with an inlet of the second sampling cavity through a connecting pipe; the inlet of the first sampling cavity is used as a sample inlet of the sampling unit, and the outlet of the second sampling cavity is used as a sample outlet of the sampling unit;
the inlet of the first sampling cavity and the outlet of the second sampling cavity penetrate through the mounting plate and then are fixed with the mounting plate; an inlet ball valve is arranged at the inlet of the first sampling cavity and is connected with a sample inlet gear through a first connecting rod; an outlet ball valve is arranged at the outlet of the second sampling cavity and is connected with a sample outlet gear through a second connecting rod; the gear ends of the first connecting rod and the second connecting rod are arranged towards the circle center of the mounting plate, and the length of the first connecting rod is longer than that of the second connecting rod;
the motor driving unit is further arranged on the mounting plate, an output shaft of the motor driving unit penetrates through the circle center of the mounting plate and then is fixed with the incomplete bevel gear, a narrow rack with a narrower radial direction and a wide rack with a wider radial direction are arranged at the outer end of the incomplete bevel gear, and the narrow rack is matched with the sample outlet gear and is used for closing the outlet ball valve in the rotation process; the wide rack is matched with the sample outlet gear and the sample inlet gear respectively and is used for opening the outlet ball valve or closing the inlet ball valve in the rotation process.
2. The deep sea water body sequence sampler with horizontally arranged cavities according to claim 1, wherein four groups of sampling units are arranged on the mounting plate, and four first sampling cavities and four second sampling cavities are uniformly and alternately arranged on the mounting plate along the circumferential direction.
3. The deep sea water body sequence sampler with horizontally arranged cavities according to claim 1, wherein the inlet of the first sampling cavity and the outlet of the second sampling cavity are vertically fixed with the mounting plate, the first sampling cavity and the second sampling cavity are horizontally arranged in a use state, and the inlet of each sampling cavity is arranged below the outlet.
4. The deep sea water body sequence sampler with horizontally arranged cavities according to claim 1, wherein the sample outlet is connected with a sampling pump through a flow guide pipe, and when sampling is performed, the sampling pump is started to pump the sample water body into the first sampling cavity and the second sampling cavity.
5. The deep sea water body sequence sampler with horizontally arranged cavities according to claim 1, wherein the sample inlet gear and the sample outlet gear have the same structure, and the lengths of the narrow rack and the wide rack along the circumferential direction are equal and are one quarter of the outer circumferences of the sample inlet gear and the sample outlet gear.
6. The deep sea water body sequence sampler with horizontally arranged cavities according to claim 5, wherein the incomplete bevel gear is matched with a sample inlet gear and a sample outlet gear; the following two stages are provided during the counterclockwise rotation of the incomplete bevel gear:
the first stage, the wide rack drives the sample outlet gear of the current sampling unit to rotate, so that the sample outlet gear rotates for 90 degrees and then the outlet ball valve is opened, and at the moment, the narrow rack is staggered with the sample inlet gear of the previous sampling unit in the rotation process; the sampling port and the sampling outlet of the current sampling unit are both opened for sampling displacement, and a water body sample enters from the sampling port;
and in the second stage, after the current sampling unit finishes sampling, the incomplete bevel gear continues to rotate anticlockwise, the wide rack drives the sample inlet gear of the current sampling unit to rotate, so that the sample inlet gear rotates by 90 degrees and then the inlet ball valve is closed, and at the moment, the narrow rack simultaneously drives the sample outlet gear of the current sampling unit to rotate, so that the sample outlet gear rotates by 90 degrees and then the outlet ball valve is closed.
7. The deep sea water body sequence sampler with horizontally arranged cavities according to claim 6, wherein the inlet ball valve and the outlet ball valve are all multipurpose ball valves provided by Shiwei lock.
8. The deep sea water body sequence sampler with horizontally arranged cavities according to claim 1, wherein a driving motor of the motor driving unit is arranged in a sealed cabin in a dynamic sealing mode, the sealed cabin comprises a front end cover, a cabin body and a rear end cover, an output shaft of the driving motor is in dynamic sealing with the front end cover through an O-shaped ring, and the front end cover is fixed with a mounting plate.
9. The deep sea water body sequence sampler with horizontally arranged cavities according to claim 1, wherein the outlet of the first sampling cavity is connected with the inlet of the second sampling cavity through a connecting pipe with an intermediate ball valve.
10. The deep sea water body sequence sampler with horizontally arranged cavities according to claim 1, wherein the inlet ball valve is connected with the first sampling cavity and the outlet ball valve is connected with the second sampling cavity through screw thread-clamping sleeve connectors; the first sampling cavity and the second sampling cavity are in the shape of an outer cylinder and an inner capsule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111360545.XA CN114235491B (en) | 2021-11-17 | 2021-11-17 | Deep sea water body sequence sampler with horizontally arranged cavities |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111360545.XA CN114235491B (en) | 2021-11-17 | 2021-11-17 | Deep sea water body sequence sampler with horizontally arranged cavities |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114235491A CN114235491A (en) | 2022-03-25 |
| CN114235491B true CN114235491B (en) | 2023-10-24 |
Family
ID=80749767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111360545.XA Active CN114235491B (en) | 2021-11-17 | 2021-11-17 | Deep sea water body sequence sampler with horizontally arranged cavities |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114235491B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106092647A (en) * | 2016-05-27 | 2016-11-09 | 浙江大学 | A kind of water body sampler for autonomous underwater robot |
| CN109883762A (en) * | 2019-03-19 | 2019-06-14 | 福建师范大学福清分校 | A kind of seawater acquisition device and its acquisition method |
| CN211179122U (en) * | 2019-09-30 | 2020-08-04 | 浙江大学 | Deep sea water body sequence sampling device with through-flow structure |
| CN111693325A (en) * | 2020-06-18 | 2020-09-22 | 北京市农林科学院 | Portable sampling device |
-
2021
- 2021-11-17 CN CN202111360545.XA patent/CN114235491B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106092647A (en) * | 2016-05-27 | 2016-11-09 | 浙江大学 | A kind of water body sampler for autonomous underwater robot |
| WO2017202140A1 (en) * | 2016-05-27 | 2017-11-30 | 浙江大学 | Water sampling device for autonomous underwater vehicle |
| CN109883762A (en) * | 2019-03-19 | 2019-06-14 | 福建师范大学福清分校 | A kind of seawater acquisition device and its acquisition method |
| CN211179122U (en) * | 2019-09-30 | 2020-08-04 | 浙江大学 | Deep sea water body sequence sampling device with through-flow structure |
| CN111693325A (en) * | 2020-06-18 | 2020-09-22 | 北京市农林科学院 | Portable sampling device |
Non-Patent Citations (2)
| Title |
|---|
| "全海深保压采水器结构设计及密封技术研究";刘恒;《中国优秀硕士学位论文全文数据库》;全文 * |
| "深海分层采样技术的研究";李风波;《中国优秀硕士学位论文全文数据库》;全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114235491A (en) | 2022-03-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110736645A (en) | deep sea water body sequence sampling device with through-flow structure | |
| CN103913346B (en) | A kind of abyssal sediment repeatedly pressurize transfer equipment | |
| CN101612539A (en) | A kind of low temperature high pressure gas hydrate replacement reaction kettle and system | |
| CN110734845B (en) | In-situ detection device and method for primary productivity of microorganisms in deep sea extreme environment based on ROV | |
| CN210005299U (en) | Water sample collection system for underwater robots | |
| CN113984441B (en) | Multi-sequence pressure-maintaining flow-type deep-sea bottom water sampler | |
| CN114235491B (en) | Deep sea water body sequence sampler with horizontally arranged cavities | |
| CN111109159A (en) | Carrying type deep sea macrobiotic pressure maintaining and sampling device | |
| CN106286197A (en) | One is done more physical exercises unit straight line motor drive type plunger displacement pump | |
| LU502242B1 (en) | Visual Simulation Device for Thickened Carbon Dioxide Flooding | |
| CN211179122U (en) | Deep sea water body sequence sampling device with through-flow structure | |
| CN114367144A (en) | In-situ multi-channel water enrichment, filtration and fixation device and method | |
| CN113418751A (en) | River lake sample collector | |
| CN114437923B (en) | Deep-water body double-sample cylinder type pressure maintaining sampling system | |
| CN114526942B (en) | Carried sediment fidelity sampler for underwater carrier | |
| CN112729947B (en) | Series-type deepwater automatic depth-setting water quality sample collector | |
| CN103423477A (en) | Swinging water-cooled vacuum gate valve and spool component thereof | |
| CN109765070A (en) | A kind of macro biological sampling device of submersible | |
| CN218916919U (en) | Multipath switching type deep sea microorganism filtering and collecting device | |
| CN211339463U (en) | ROV-based in-situ detection device for microbial primary productivity | |
| Xu et al. | MFPD: Multi-sequence Flow-through Pressure-retaining Sampler for Deep sea Geofluid Research | |
| CN117735688A (en) | Seawater purification system and method for pressure conversion pipeline of seabed load cabin | |
| CN111426605A (en) | High-temperature high-pressure three-phase fluid dynamic rheometer and method | |
| CN219957058U (en) | Sampling structure for gas production detection | |
| CN118165812A (en) | In-situ filtering and collecting device for deep sea microorganisms |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |