CN104458337B - Suction type membrane filtration suspended particle trap for marine environmental monitoring - Google Patents
Suction type membrane filtration suspended particle trap for marine environmental monitoring Download PDFInfo
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- CN104458337B CN104458337B CN201410576598.9A CN201410576598A CN104458337B CN 104458337 B CN104458337 B CN 104458337B CN 201410576598 A CN201410576598 A CN 201410576598A CN 104458337 B CN104458337 B CN 104458337B
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Abstract
The invention discloses a suction type membrane filtration suspended particle trap for marine environmental monitoring, and aims to provide a collection device which is convenient to operate, low in labor intensity and high in automatic degree and is particularly applicable to the process of sampling massive monitoring points respectively in different areas. The trap comprises a rack, a water pump, a traction rope, a balancing weight, a water pumping pipeline, a first diversion pipe, a second diversion pipe, a rotating shaft and two mounting casings, wherein the first diversion pipe and the second diversion pipe are fixedly arranged on the rack; the rotating shaft is arranged on the rack in a rotating manner; the two mounting casings are uniformly distributed along the circumference of the rotating shaft; a particle sampling device is arranged in one mounting casing, and a washing diversion device is arranged in the other mounting casing; one end of the water pumping pipeline is connected with the water inlet of the water pump; and one end of the first diversion pipe is connected with the water outlet of the water pump.
Description
Technical field
The present invention relates to a kind of harvester, be specifically related to the sucking type membrane filtration particle for marine environmental monitoring of suspended particulate substance in a kind of sea water of sampling and take out storage.
Background technology
Particle suspensions is an important embodiment in aquatic ecosystem trophic structure, can reflect the variation tendency that in a system, water quality is potential, and it mainly includes suspension bed sediment, phytoplankton, zooplankton, detritus (organic debris) etc..Suspended particulate substance in the water body of aquaculture sea area is that important in water body of various pollutant exists medium, playing an important role for the migration in aquatic ecosystem of the various pollutant, distribution, bioavailability and final home to return on pollutant have important impact.Along with going deep into that suspended particulate substance in people's water body to aquaculture sea area is studied, suspended particulate substance sample method and sampling apparatus, become the basis of research suspended particulate substance accurate, quick.
In waters, suspended particulate substance sampling most common method is at present: by water sampling device collection in worksite water sample at sea, then uses funneling defecator to filter water sample, thus gathers the sample of suspended particulate substance；Or carry out filtration treatment again by after Refrigerated Transport after water body example collection to laboratory.The current this method of sampling not only needs substantial amounts of manual operations, and labor intensity is big, and the sampling period is long；When especially research needs to gather suspended particulate substance in zones of different, times of collection is many, and labor intensity is big, and the sampling period is long；And under rugged environment, it is difficult to especially operate.On the other hand, the current this method of sampling can only carry out single-point sampling in little range areas, continuous print cannot sample the suspended particulate substance of difference in extensive area, whether the analysis result of suspended particulate substance in waters can objectively be reacted waters integral level by this can adversely affect.
Such as, China Patent Publication No. CN203414313U, publication date on January 29th, 2014, the entitled portable breeding water body particle suspensions sampling apparatus of innovation and creation, including sampling container, suspension strop body and band, being provided with mass so that suspension strop body keeps vertically tightening shape at described suspension strop body end, described sampling container is connected on suspension strop body by a band is detachable.The sampling apparatus of this application case is again by marine collection in worksite water sample, and then by filtering the sample of water sampling suspended particulate substance, it equally exists above-mentioned deficiency.
Such as, China Patent Publication No. CN2880917, publication date on March 21st, 2007, the entitled automatic sampling apparatus for suspanded mud and sand field of innovation and creation.Including water sampling device, cable and the carrier of the be connected central control unit containing software and carrying thereof, this carrier is connected to the buoyancy aid on top respectively by shadoof and wirerope, it also includes empennage and the kuppe that carrier both sides are respectively provided with, one anchor being connected by anchor chain is set in the lower section of carrier, and reaches, for mass and buoyancy aid synergy, the depth of water needed with anchor and anchor chain.The sampling apparatus of this application case is again by marine collection in worksite water sample, and then by filtering the sample of water sampling suspended particulate substance, it equally exists above-mentioned deficiency.
Summary of the invention
The first object of the present invention is to overcome deficiency of the prior art, it is provided that one can not only carry out single-point sampling in little range areas, it is possible in extensive area, the suspended particulate substance of difference is sampled by continuous print；And easy to operate, labor intensity is low, automaticity is high, is particularly suited for needing to carry out the sucking type membrane filtration particle for marine environmental monitoring of application in substantial amounts of test point sampling process respectively in zones of different and takes out storage.
It is another object of the present invention in order to one can cleaning harvester internal structure convenient, effective, avoiding the foreign body in harvester internal structure to be mixed in the suspended particulate substance of water body, the verity of impact analysis result, the sucking type membrane filtration particle for marine environmental monitoring of effectiveness take out storage.
The technical scheme is that
A kind of sucking type membrane filtration particle for marine environmental monitoring takes out storage, including frame, water pump, pull rope, balancing weight, pumping conduit, the first mozzle being fixedly installed in frame and the second mozzle, the rotating shaft being rotatably provided in frame and two uniform installation sleeve pipes the most circumferential；Being provided with particle sampling device in an installation sleeve pipe in two installation sleeve pipes, another is provided with cleaning guiding device in installing sleeve pipe；
Described pumping conduit is metal hose or rubber hose, one end of pumping conduit is connected with the water inlet of water pump, what the other end of pumping conduit was fixing is provided with connection ring, and described balancing weight is restricted by connecting and is connected ring and is connected, and one end of described pull rope is connected with being connected ring；Described one end of first mozzle is connected with the outlet of water pump, the first flexible connection sleeve pipe slidably it is provided with in the other end of the first mozzle, first is flexibly connected sleeve pipe one end is positioned at the first mozzle, the other end extends to outside the first mozzle, and is positioned at and fixing on the end face of the first flexible connection sleeve pipe outside the first mozzle is provided with first annular sealing gasket；It is provided with the first exterior seal ring, described frame or the first mozzle on described first flexible connection outside of sleeve face, between the first mozzle and the first flexible connection sleeve pipe and is provided with the first passage execution device for promoting the first flexible connection sleeve pipe to slide along the first mozzle；
Described first is flexibly connected sleeve pipe medial surface is provided with the first limited block, and the first limited block is near first annular sealing gasket, and the first flexible connection sleeve pipe is interior, be provided with the first check valve apparatus between the first limited block and first annular sealing gasket；
In described first flexible connection sleeve pipe, between the first check valve apparatus and first annular sealing gasket, it is provided with the first fairlead, this first fairlead is positioned at the middle part of the first flexible connection sleeve pipe, first fairlead and first is flexibly connected sleeve pipe and is coaxially disposed or be arranged in parallel, first fairlead is fixed on the first flexible connection sleeve pipe medial surface by the first outside connecting rod, slidably it is provided with the first push rod in first fairlead, on the first push rod lateral surface, by the first push rod, is respectively arranged at two ends with the first block；
Described first mozzle is paralleled with rotating shaft, and the first mozzle and the second mozzle are coaxially disposed, and on the axis direction of rotating shaft, described installation sleeve pipe is between the first mozzle and the second mozzle；The both ends open of the second mozzle, the second flexible connection sleeve pipe slidably it is provided with in second mozzle, second is flexibly connected sleeve pipe one end is positioned at the second mozzle, the other end is flexibly connected sleeve pipe direction toward first and extends, and be positioned at outside the second mozzle, and it be positioned at and fixing on the end face of the second flexible connection sleeve pipe outside the second mozzle be provided with the second Gask-O-Seal；It is provided with the second exterior seal ring, described frame or the second mozzle on described second flexible connection outside of sleeve face, between the second mozzle and the second flexible connection sleeve pipe and is provided with the second passage execution device for promoting the second flexible connection sleeve pipe to slide along the second mozzle；
Described second is flexibly connected sleeve pipe medial surface is provided with the second limited block, and the second limited block is near the second Gask-O-Seal, and the second flexible connection sleeve pipe is interior, be provided with the second check valve apparatus between the second limited block and the second Gask-O-Seal；
In described second flexible connection sleeve pipe, between the second check valve apparatus and the second Gask-O-Seal, it is provided with the second fairlead, this second fairlead is positioned at the middle part of the second flexible connection sleeve pipe, second fairlead and second is flexibly connected sleeve pipe and is coaxially disposed or be arranged in parallel, second fairlead is fixed on the second flexible connection sleeve pipe medial surface by the second outside connecting rod, slidably it is provided with the second push rod in second fairlead, on the second push rod lateral surface, by the second push rod, is respectively arranged at two ends with the second block；
The both ends open of described installation sleeve pipe, is installed and is connected by connecting rod between sleeve pipe and rotating shaft, and the axis installing sleeve pipe is paralleled with rotating shaft, and it is identical to install the spacing between spacing and the axis of the first mozzle and the rotating shaft between axis and the rotating shaft of sleeve pipe；
Described particle sampling device includes that can be taken off is plugged in the sampling cylinder and at least one of which filtering meshes being arranged in sampling cylinder or at least one of which filter membrane layer installed in sleeve pipe, and described sampling cylinder lateral surface is provided with the 3rd exterior seal ring；Described sampling cylinder medial surface is provided with twice the 3rd annular stop block, described filtering meshes or filter membrane layer are between twice the 3rd annular stop block, in described sampling cylinder, by one the 3rd check valve apparatus that is respectively arranged at two ends with of sampling cylinder, and twice the 3rd annular stop block is between two the 3rd check valve apparatus；
Described cleaning guiding device includes that can be taken off is plugged in the guide shell installed in sleeve pipe, and the both ends open of described guide shell, guide shell lateral surface is provided with the 4th exterior seal ring；Guide shell medial surface is provided with twice fourth annular limited block, and in guide shell, by one the 4th check valve apparatus that is respectively arranged at two ends with of guide shell, and twice fourth annular limited block is between two the 4th check valve apparatus；
Described first, second, third and the 4th check valve apparatus include valve pocket respectively, the column valve body being arranged in valve pocket, the check valve guide pin bushing being co-axially located in valve pocket and connect the inside connecting rod of valve pocket and check valve guide pin bushing；Described valve pocket lateral surface is provided with middle sealing ring, and the end face of the valve pocket of the first check valve apparatus is resisted against on the first limited block, and the inward flange of other end is provided with the annular boss toward internal projection；The end face of the valve pocket of the second check valve apparatus is resisted against on the second limited block, and the inward flange of other end is provided with the annular boss toward internal projection；The end face of the valve pocket of the 3rd check valve apparatus is resisted against on the 3rd annular stop block, and the inward flange of other end is provided with the annular boss toward internal projection；The end face of the valve pocket of the 4th check valve apparatus is resisted against on fourth annular limited block, and the inward flange of other end is provided with the annular boss toward internal projection；Described cylindrical valve body is positioned between annular boss and check valve guide pin bushing, on cylindrical valve outside, it is provided with annular protrusion near the edge of check valve guide pin bushing, coaxial on column valve body it is provided with guide post, one end of guide post is fixed on column valve body end face, the other end passes check valve guide pin bushing, is arranged with the pretension compression spring that annular protrusion can be made to be resisted against on annular boss on described guide post, between check valve guide pin bushing and column valve body；On cylindrical valve outside, between column valve body and annular boss, it is provided with inner seal ring.
The sucking type membrane filtration particle for marine environmental monitoring of this programme takes out storage can not only carry out single-point sampling in little range areas, it is possible in extensive area, the suspended particulate substance of difference is sampled by continuous print；And easy to operate, labor intensity is low, automaticity is high, is particularly suited for needing to carry out respectively applying in substantial amounts of test point sampling process in zones of different.
On the other hand, the sucking type membrane filtration particle for marine environmental monitoring of this programme takes out storage can also cleaning harvester internal structure convenient, effective, the foreign body in harvester internal structure is avoided to be mixed in the suspended particulate substance of water body, the verity of impact analysis result, effectiveness.
As preferably, when installation sleeve pipe and first mozzle at particle sampling device place are in coaxial position, and the first first annular sealing gasket being flexibly connected on sleeve pipe is resisted against on the end face installing sleeve pipe, when second the second Gask-O-Seal being flexibly connected on sleeve pipe is resisted against on the other end installing sleeve pipe: one end of the first push rod is resisted against on the column valve body end face of the first check valve apparatus, and the other end is resisted against on the column valve body end face of the 3rd check valve apparatus；And first push rod by first and the 3rd the column valve body of check valve apparatus elapse toward check valve guide pin bushing direction, and separate with annular boss；One end of second push rod is resisted against on the column valve body end face of the second check valve apparatus, and the other end is resisted against on the column valve body end face of the 3rd check valve apparatus；And second push rod the column valve body of second and third check valve apparatus is elapsed toward check valve guide pin bushing direction, and separate with annular boss；
When the installation sleeve pipe and the first mozzle cleaning guiding device place is in coaxial position, and the first first annular sealing gasket being flexibly connected on sleeve pipe is resisted against on the end face installing sleeve pipe, when second the second Gask-O-Seal being flexibly connected on sleeve pipe is resisted against on the other end installing sleeve pipe: one end of the first push rod is resisted against on the column valve body end face of the first check valve apparatus, and the other end is resisted against on the column valve body end face of the 4th check valve apparatus；And first push rod by first and the 4th the column valve body of check valve apparatus elapse toward check valve guide pin bushing direction, and separate with annular boss；One end of second push rod is resisted against on the column valve body end face of the second check valve apparatus, and the other end is resisted against on the column valve body end face of the 4th check valve apparatus；And second push rod by second and the 4th the column valve body of check valve apparatus elapse toward check valve guide pin bushing direction, and separate with annular boss.
This programme ensures when any one installation sleeve pipe in two installation sleeve pipes and the first mozzle are in coaxial position, and the first first annular sealing gasket being flexibly connected on sleeve pipe is resisted against on the end face installing sleeve pipe, when second the second Gask-O-Seal being flexibly connected on sleeve pipe is resisted against on the other end installing sleeve pipe: first is flexibly connected sleeve pipe, sampling cylinder and second is flexibly connected sleeve pipe and is connected, or first be flexibly connected sleeve pipe, guide shell and second is flexibly connected sleeve pipe and is connected, the water making water pump aspirate can be flexibly connected sleeve pipe by first and flow through sampling cylinder or guide shell, and it is flexibly connected sleeve pipe outflow by second, realize the sampling of suspended particulate substance or the cleaning to each pipe interior structure.
As preferably, first, second, third and the 4th check valve apparatus guide post on, between column valve body and check valve guide pin bushing, be respectively equipped with the 4th limited block.
Due to the setting of the 4th limited block, which limit first, second, third and the 4th distance of moving toward check valve guide pin bushing direction of the column valve body of check valve apparatus；The so any one installation sleeve pipe in two installation sleeve pipes and the first mozzle is in coaxial position, and the first first annular sealing gasket being flexibly connected on sleeve pipe is resisted against on the end face installing sleeve pipe, when second the second Gask-O-Seal being flexibly connected on sleeve pipe is resisted against on the other end installing sleeve pipe: can ensure that the first push rod and the second push rod open first the most simultaneously, second and third check valve apparatus, or first, second and the 4th check valve apparatus, avoid first, second, certain check valve apparatus in 3rd and the 4th check valve apparatus is not turned on, the column valve body i.e. avoiding certain check valve apparatus does not separates with annular boss, and cause sampling operation or cleaning operation failure.
As preferably, the spacing hole paralleled with rotating shaft it is respectively equipped with in each connecting rod, and spacing between each spacing hole and rotating shaft is identical, described frame is provided with the pilot hole paralleled with rotating shaft, and spacing between spacing and spacing hole and the rotating shaft between pilot hole with rotating shaft is identical, in described pilot hole, slidably it is provided with gag lever post.
After changing particle sampling device, this programme is positioned installing sleeve pipe by the spacing hole cooperation on gag lever post and connecting rod, and beneficially operator's location and installation sleeve pipe makes installation sleeve pipe and the first mozzle be in coaxial position, it is simple to practical operation.
As preferably, the end face outward flange being positioned at the outside the first mozzle first flexible connection sleeve pipe is provided with the first flange extended outward, described first annular sealing gasket is arranged in the first flange end face of the second mozzle, and first annular gasket ring is around the first port being flexibly connected sleeve pipe；The end face outward flange being positioned at the outside the second mozzle second flexible connection sleeve pipe is provided with the second flange extended outward, described second Gask-O-Seal is arranged in the second flange end face of the first mozzle, and the second Gask-O-Seal is around the second port being flexibly connected sleeve pipe；The both ends of the surface outward flange installing sleeve pipe is respectively equipped with the third lip extended outward.
As preferably, being provided with three layers of filtering meshes being equally spaced or filter membrane layer in sampling cylinder, the mesh of each filtering meshes or the fenestra of each filter membrane layer are gradually reduced from the first mozzle toward the second mozzle direction.The filtering meshes of this programme or filter membrane Rotating fields are conducive to the suspended particulate substance of variable grain size in water body is carried out layered filtration, are conducive to improving filter effect (i.e. collection effect) and filter efficiency.
As preferably, it is cylinder or oil cylinder that first and second passage performs device.
As preferably, the second mozzle is additionally provided with the effusion meter for measuring the discharge flowing through the second mozzle.This programme flows through the water yield of the second mozzle by effusion meter measurement, such that it is able to learn the ratio of the water yield and suspended particulate substance；And filtration water sample that can be quantitative.
The invention has the beneficial effects as follows:
One, can not only carry out single-point sampling, it is possible to the suspended particulate substance of difference is sampled by continuous print in extensive area in little range areas；And easy to operate, labor intensity is low, automaticity is high, is particularly suited for needing to carry out respectively applying in substantial amounts of test point sampling process in zones of different.
They are two years old, it is possible to cleaning harvester internal structure convenient, effective, it is to avoid the foreign body in harvester internal structure is mixed in the suspended particulate substance of water body, the verity of impact analysis result, effectiveness.
Accompanying drawing explanation
Fig. 1 is that the sucking type membrane filtration particle for marine environmental monitoring of the present invention takes out storage a kind of structural representation in use.
Fig. 2 is the partial enlarged drawing in Fig. 1 at A.
Fig. 3 is a kind of structural representation of the particle sampling device of the present invention.
Fig. 4 is a kind of structural representation cleaning guiding device of the present invention.
Fig. 5 is that the sucking type membrane filtration particle for marine environmental monitoring of the present invention takes out storage another kind of structural representation in use.
Fig. 6 is the partial enlarged drawing in Fig. 5 at B.
nullIn figure: the first mozzle 1，First is flexibly connected sleeve pipe 2，First passage performs device 3，First limited block 4，First check valve apparatus 5，First flange 6，Third lip 7，Sleeve pipe 8 is installed，Particle sampling device 9、3rd check valve apparatus 91、Filter mesh layer 92、Sampling cylinder 93、3rd annular stop block 94、3rd exterior seal ring 95，Clean guiding device 9a、4th check valve apparatus 91a、Guide shell 93a、Four annular limited block 94a、4th exterior seal ring 95a，Second flange 10，Second check valve apparatus 11，Second limited block 12，Second is flexibly connected sleeve pipe 13，Second passage performs device 14，Second mozzle 15，Spacing hole 16，Connecting rod 17，Rotating shaft 18，Gag lever post 19，First annular sealing gasket 20，Guide post 22，Check valve guide pin bushing 23，4th limited block 24，Valve pocket 25，Pretension compression spring 26，Annular protrusion 27，Column valve body 28，Annular boss 29，First fairlead 30，First push rod 31，First block 32，Second fairlead 33，Second push rod 34，Second block 35，Middle sealing ring 36，Water pump 37，Pumping conduit 38，Pull rope 39，Connect ring 40，Balancing weight 41.
Detailed description of the invention
With detailed description of the invention, the present invention is described in further detail below in conjunction with the accompanying drawings:
As shown in Figure 1, a kind of sucking type membrane filtration particle for marine environmental monitoring takes out storage, including frame, water pump 37, pull rope 39, balancing weight 41, pumping conduit 38, the first mozzle 1 and the second mozzle 15 being fixedly installed in frame, the rotating shaft 18 being rotatably provided in frame and two uniform installation sleeve pipes 8 the most circumferential.Pumping conduit is metal hose or rubber hose.One end of pumping conduit is connected with the water inlet of water pump.What the other end of pumping conduit was fixing is provided with connection ring 40.Balancing weight is by connecting rope and being connected ring and be connected.One end of pull rope is connected with being connected ring.Being provided with particle sampling device 9 in an installation sleeve pipe in two installation sleeve pipes, another is provided with cleaning guiding device 9a in installing sleeve pipe.Rotating shaft is spindle rotationally arranged in frame by bearing block.First and second mozzle is pipe.First mozzle is paralleled with rotating shaft.First mozzle and the second mozzle are coaxially disposed, and on the axis direction of rotating shaft, install sleeve pipe between the first mozzle and the second mozzle.The effusion meter of the water yield flowing through the second mozzle for metering it is additionally provided with on second mozzle.
As shown in Figure 1 and Figure 2, one end of the first mozzle is connected with the outlet of water pump.First mozzle and the second mozzle are positioned at the same side of water pump.The first flexible connection sleeve pipe 2 slidably it is provided with in the other end of the first mozzle.First is flexibly connected sleeve pipe one end is positioned at the first mozzle, and the other end extends to outside the first mozzle, and the end face outward flange being positioned at the first flexible connection sleeve pipe outside the first mozzle is provided with the first flange 6 extended outward；It is positioned at and fixing on the end face of the outside the first mozzle first flexible connection sleeve pipe is provided with first annular sealing gasket 20, specifically, first annular sealing gasket is arranged in the first flange end face of the second mozzle, and first annular gasket ring is around the first port being flexibly connected sleeve pipe.It is flexibly connected between sleeve pipe on first flexible connection outside of sleeve face, at the first mozzle and first and is provided with the first exterior seal ring.Frame or the first mozzle are provided with and perform device 3 for the first passage promoting the first flexible connection sleeve pipe to slide along the first mozzle.It is cylinder or oil cylinder that first passage performs device.
First is flexibly connected sleeve pipe medial surface is provided with the first limited block 4, and the first limited block is near first annular sealing gasket.In first flexible connection sleeve pipe, between the first limited block and first annular sealing gasket, it is provided with the first check valve apparatus 5.
In first flexible connection sleeve pipe, between the first check valve apparatus and first annular sealing gasket, it is provided with the first fairlead 30.This first fairlead is positioned at the middle part of the first flexible connection sleeve pipe, and the first fairlead and first is flexibly connected sleeve pipe and is coaxially disposed or be arranged in parallel.First fairlead is fixed on the first flexible connection sleeve pipe medial surface by the first outside connecting rod.The first push rod 31 slidably it is provided with in first fairlead.It is respectively arranged at two ends with the first block 32 on first push rod lateral surface, by the first push rod.
The both ends open of the second mozzle.The second flexible connection sleeve pipe 13 slidably it is provided with in second mozzle.Second is flexibly connected sleeve pipe one end is positioned at the second mozzle, the other end is flexibly connected sleeve pipe direction toward first and extends, and be positioned at outside the second mozzle, and the end face outward flange being positioned at the second flexible connection sleeve pipe outside the second mozzle is provided with the second flange 10 extended outward；It is positioned at and fixing on the end face of the outside the second mozzle second flexible connection sleeve pipe is provided with the second Gask-O-Seal 21, specifically, second Gask-O-Seal is arranged in the second flange end face of the first mozzle, and the second Gask-O-Seal is around the second port being flexibly connected sleeve pipe.It is flexibly connected between sleeve pipe on second flexible connection outside of sleeve face, at the second mozzle and second and is provided with the second exterior seal ring.Frame or the second mozzle are provided with and perform device 14 for the second passage promoting the second flexible connection sleeve pipe to slide along the second mozzle.It is cylinder or oil cylinder that second passage performs device.
Second is flexibly connected sleeve pipe medial surface is provided with the second limited block 12, and the second limited block is near the second Gask-O-Seal.In second flexible connection sleeve pipe, between the second limited block and the second Gask-O-Seal, it is provided with the second check valve apparatus 11.
In second flexible connection sleeve pipe, between the second check valve apparatus and the second Gask-O-Seal, it is provided with the second fairlead 33.This second fairlead is positioned at the middle part of the second flexible connection sleeve pipe, and the second fairlead and second is flexibly connected sleeve pipe and is coaxially disposed or be arranged in parallel.Second fairlead is fixed on the second flexible connection sleeve pipe medial surface by the second outside connecting rod.Slidably it is provided with the second push rod 34 in second fairlead, is respectively arranged at two ends with the second block 35 on the second push rod lateral surface, by the second push rod.
The both ends open of sleeve pipe is installed.The both ends of the surface outward flange installing sleeve pipe is respectively equipped with the third lip 7 extended outward.Install and be connected by connecting rod 17 between sleeve pipe and rotating shaft.The axis installing sleeve pipe is paralleled with rotating shaft, and it is identical to install the spacing between spacing and the axis of the first mozzle and the rotating shaft between axis and the rotating shaft of sleeve pipe.It is respectively equipped with the spacing hole 16 paralleled with rotating shaft in each connecting rod, and the spacing between each spacing hole and rotating shaft is identical.The spacing that frame is provided with between the pilot hole paralleled with rotating shaft, and spacing and spacing hole and the rotating shaft between pilot hole with rotating shaft is identical.Gag lever post 19 slidably it is provided with in pilot hole.
As shown in Figure 1, Figure 2, Figure 3 shows, particle sampling device includes that can be taken off is plugged in the sampling cylinder 93 and at least one of which filtering meshes 92 being arranged in sampling cylinder or at least one of which filter membrane layer installed in sleeve pipe.The both ends open of sampling cylinder.Three layers of filtering meshes being equally spaced or filter membrane layer it is provided with in sampling cylinder in the present embodiment.The mesh of each filtering meshes or the fenestra of each filter membrane layer are gradually reduced from the first mozzle toward the second mozzle direction.Sampling cylinder lateral surface is provided with on the 3rd exterior seal ring 95, i.e. sampling cylinder lateral surface, is provided with the 3rd exterior seal ring between sampling cylinder and installation sleeve pipe.Sampling cylinder medial surface is provided with twice the 3rd annular stop block 94, and each filtering meshes or filter membrane layer are between twice the 3rd annular stop block.In sampling cylinder, by one the 3rd check valve apparatus 91 that is respectively arranged at two ends with of sampling cylinder, and twice the 3rd annular stop block is between two the 3rd check valve apparatus.
As shown in Figure 1, Figure 2, Figure 4 shows, clean guiding device and include that can be taken off is plugged in the guide shell 93a installed in sleeve pipe.The both ends open of guide shell.Guide shell lateral surface is provided with the 4th exterior seal ring 95a.Guide shell medial surface is provided with twice fourth annular limited block 94a.In guide shell, by one the 4th check valve apparatus 91a that is respectively arranged at two ends with of guide shell, and twice fourth annular limited block is between two the 4th check valve apparatus.
As shown in Figure 2, Figure 3, Figure 4, first, second, third and the 4th check valve apparatus include valve pocket 25 respectively, the column valve body 28 being arranged in valve pocket, the check valve guide pin bushing 23 being co-axially located in valve pocket and connect the inside connecting rod of valve pocket and check valve guide pin bushing.Valve pocket is circular valve pocket.Valve pocket lateral surface is provided with middle sealing ring 36.The end face of the valve pocket of the first check valve apparatus is resisted against on the first limited block, and the inward flange of other end is provided with the annular boss 29 toward internal projection.The end face of the valve pocket of the second check valve apparatus is resisted against on the second limited block, and the inward flange of other end is provided with the annular boss 29 toward internal projection.The end face of the valve pocket of the 3rd check valve apparatus is resisted against on the 3rd annular stop block, the end face of the valve pocket that the inward flange of other end is provided with annular boss 29(that is the 3rd check valve apparatus toward internal projection is resisted against on the 3rd annular stop block, and the inward flange of other end is provided with the annular boss 29 toward valve pocket axis direction projection).The end face of the valve pocket of the 4th check valve apparatus is resisted against on fourth annular limited block, the end face of the valve pocket that the inward flange of other end is provided with annular boss 29(that is the 4th check valve apparatus toward internal projection is resisted against on fourth annular limited block, and the inward flange of other end is provided with the annular boss 29 toward valve pocket axis direction projection).Column valve body circular in cross-section.Cylindrical valve body is positioned between annular boss and check valve guide pin bushing.On cylindrical valve outside, the edge of close check valve guide pin bushing is provided with in annular protrusion 27, the i.e. left and right edges of cylindrical valve outside, the edge of close check valve guide pin bushing is provided with annular protrusion 27.Coaxial on column valve body it is provided with guide post 22.One end of guide post is fixed on column valve body end face, and the other end passes check valve guide pin bushing.The pretension compression spring 26 that annular protrusion can be made to be resisted against on annular boss it is arranged with on guide post, between check valve guide pin bushing and column valve body.First, second, third and the 4th check valve apparatus guide post on, between column valve body and check valve guide pin bushing, be respectively equipped with the 4th limited block 24.On cylindrical valve outside, between column valve body and annular boss, it is provided with inner seal ring.
As shown in Figure 2, when installation sleeve pipe and first mozzle at particle sampling device place are in coaxial position, and the first first annular sealing gasket being flexibly connected on sleeve pipe is resisted against on the end face installing sleeve pipe, when second the second Gask-O-Seal being flexibly connected on sleeve pipe is resisted against on the other end installing sleeve pipe: one end of the first push rod is resisted against on the column valve body end face of the first check valve apparatus, and the other end is resisted against on the column valve body end face of the 3rd check valve apparatus；And first push rod by first and the 3rd the column valve body of check valve apparatus elapse toward check valve guide pin bushing direction, and separate with annular boss；One end of second push rod is resisted against on the column valve body end face of the second check valve apparatus, and the other end is resisted against on the column valve body end face of the 3rd check valve apparatus；And second push rod the column valve body of second and third check valve apparatus is elapsed toward check valve guide pin bushing direction, and separate with annular boss.
When the installation sleeve pipe and the first mozzle cleaning guiding device place is in coaxial position, and the first first annular sealing gasket being flexibly connected on sleeve pipe is resisted against on the end face installing sleeve pipe, when second the second Gask-O-Seal being flexibly connected on sleeve pipe is resisted against on the other end installing sleeve pipe: one end of the first push rod is resisted against on the column valve body end face of the first check valve apparatus, and the other end is resisted against on the column valve body end face of the 4th check valve apparatus；And first push rod by first and the 4th the column valve body of check valve apparatus elapse toward check valve guide pin bushing direction, and separate with annular boss；One end of second push rod is resisted against on the column valve body end face of the second check valve apparatus, and the other end is resisted against on the column valve body end face of the 4th check valve apparatus；And second push rod by second and the 4th the column valve body of check valve apparatus elapse toward check valve guide pin bushing direction, and separate with annular boss.
The specific works process that the sucking type membrane filtration particle for marine environmental monitoring of the present invention takes out storage is as follows:
First, by pull rope, the port connecting the pumping conduit at ring place is transferred to the waters specify position (degree of depth specified), balancing weight is by the waters placing designated depth under the pumping conduit port at connection ring place and approximately fixed in the waters of designated depth in this process；
Drive two installation sleeve pipes to rotate around the axis, make the installation sleeve rotating at cleaning guiding device place between first and second mozzle, and gag lever post is inserted in the spacing hole in connecting rod；Now, installation sleeve pipe and the first mozzle between first and second mozzle are in coaxial position；
Then, performing device by first and second passage drives first and second to be flexibly connected sleeve pipe near installing sleeve pipe, and make first annular sealing gasket on the first flexible connection sleeve pipe against, be pressed on the end face installing sleeve pipe, the second the second Gask-O-Seal being flexibly connected on sleeve pipe against, be pressed on the other end installing sleeve pipe；
Now, the first push rod by first and the 4th the column valve body of check valve apparatus elapse toward check valve guide pin bushing direction, and separate with annular boss, thus open first and the 4th check valve apparatus；Second push rod by second and the 4th the column valve body of check valve apparatus elapse toward check valve guide pin bushing direction, and separate with annular boss, thus open second and the 4th check valve apparatus；And then make the first flexible connection sleeve pipe, guide shell and the second flexible connection sleeve pipe be connected.
Second, to open water pump, make water in appointment waters by transferring to the pumping conduit port suction pumping conduit specifying position, and flow through water pump successively, the first mozzle, first is flexibly connected sleeve pipe, guide shell, and second is flexibly connected sleeve pipe and the second mozzle；Finally flowed out by the another port of the second mozzle, the second mozzle port the current flowed out can directly be flowed back in marine site by the water surface；Water in designated waters is washed away, cleans by the most each inner-walls of duct and interior structure thereof, thus effectively clean harvester internal structure, the foreign body in harvester internal structure is avoided to be mixed in the suspended particulate substance of water body, the verity of impact analysis result, effectiveness.
3rd, switch off the pump；Then, performing device by first and second passage drives first and second to be flexibly connected the remotely mounted sleeve pipe of sleeve pipe；In this process, first, second and the 4th the column valve body of check valve apparatus will move toward annular boss, and make inner seal ring on column valve body coordinate with annular boss, thus close first, second and the 4th check valve apparatus, the water in first, second flexible connection sleeve pipe and guide shell so can be avoided to flow out, and pollute the working environment of surrounding.
4th, drive two installation sleeve pipes to rotate around the axis, make the installation sleeve rotating at particle sampling device place between first and second mozzle, and gag lever post is inserted in the spacing hole in connecting rod；Now, installation sleeve pipe and the first mozzle between first and second mozzle are in coaxial position；
Then, as shown in Figure 1 and Figure 2, performing device by first and second passage drives first and second to be flexibly connected sleeve pipe near installing sleeve pipe, and make first annular sealing gasket on the first flexible connection sleeve pipe against, be pressed on the end face installing sleeve pipe, the second the second Gask-O-Seal being flexibly connected on sleeve pipe against, be pressed on the other end installing sleeve pipe；Now, the first push rod by first and the 3rd the column valve body of check valve apparatus elapse toward check valve guide pin bushing direction, and separate with annular boss, thus open first and the 3rd check valve apparatus；The column valve body of second and third check valve apparatus is elapsed by the second push rod toward check valve guide pin bushing direction, and separates with annular boss, thus opens second and third check valve apparatus；And then make the first flexible connection sleeve pipe, sampling cylinder and the second flexible connection sleeve pipe be connected.
5th, open water pump, make the water in waters by transferring to the pumping conduit port suction pumping conduit specifying position, and flow through water pump, the first mozzle successively, first is flexibly connected sleeve pipe, the sampling cylinder of particle sampling device, second is flexibly connected sleeve pipe and the second mozzle；Finally flowed out by the another port of the second mozzle, and the current flowed out by the second mozzle port can directly flow in meeting waters.
During current flow through sampling cylinder, the suspended particulate substance in water body will be filtered by drainage screen or filter membrane, thus the suspended particulate substance realized in the water body of the sampled cylinder of convection current is sampled.
In this process, the position transferring the pumping conduit port specifying position to waters can be made to generally remain constant, in so can realizing the waters to little range areas, carry out single-point sampling.Same, in this process, the whole sucking type membrane filtration particle for marine environmental monitoring can being driven to take out the storage pumping conduit of position (include putting specify to waters) by ship, to move navigation with ship mobile, thus realize continuous print in extensive area and sample the suspended particulate substance of difference.So by the single-point sampled data in little range areas, and the sampled data that the suspended particulate substance of difference is carried out by continuous print in extensive area, the analysis result that can improve suspended particulate substance represents the verity of waters integral level, effectiveness.
6th, after completing once to sample, it is first shut off water pump；
Then, as shown in Figure 5, Figure 6, performing device by first and second passage drives first and second to be flexibly connected the remotely mounted sleeve pipe of sleeve pipe；In this process, the column valve body of first and second check valve apparatus will move toward annular boss, and make inner seal ring on column valve body coordinate with annular boss, thus close first and second check valve apparatus, first and second water being flexibly connected in sleeve pipe so can be avoided to be flowed out by first and second port being flexibly connected sleeve pipe at first and second check valve apparatus place, and pollute the working environment of surrounding；
And simultaneously, the column valve body of two the 3rd check valve apparatus in sampling cylinder will move toward annular boss, and make inner seal ring on column valve body coordinate with annular boss, thus close the 3rd check valve apparatus at sampling cylinder two ends, and then the sampling cylinder silt that obtains of sampling and particulate matter are enclosed in sampling cylinder, it is to avoid silt and particulate matter that sampling cylinder sampling obtains run off.
Followed by, drive two installation sleeve pipes to rotate around the axis, make the installation sleeve rotating at cleaning guiding device place between first and second mozzle, and gag lever post is inserted in the spacing hole in connecting rod；Now, installation sleeve pipe and the first mozzle between first and second mozzle are in coaxial position；Prepare for cleaning sampling apparatus next time；
And particle sampling device will be located in below first and second mozzle, now, particle sampling device can will directly be taken out, then by operator by installing sleeve pipe, another unsampled particle sampling device is reloaded in installation sleeve pipe, prepare for sampling next time.So far the sampling of a suspension bed sediment sample is completed.The sucking type membrane filtration particle for marine environmental monitoring of the present invention takes out that storage is easy to operate, labor intensity is low, and automaticity is high；Being particularly suited for needing to carry out respectively applying in substantial amounts of test point sampling process in zones of different, it can reduce labor intensity greatly, improves sampling efficiency.
Claims (8)
1. take out storage for the sucking type membrane filtration particle of marine environmental monitoring for one kind, it is characterized in that, including frame, water pump, pull rope, balancing weight, pumping conduit, the first mozzle being fixedly installed in frame and the second mozzle, the rotating shaft being rotatably provided in frame and two uniform installation sleeve pipes the most circumferential；Being provided with particle sampling device in an installation sleeve pipe in two installation sleeve pipes, another is provided with cleaning guiding device in installing sleeve pipe；
Described pumping conduit is metal hose or rubber hose, one end of pumping conduit is connected with the water inlet of water pump, what the other end of pumping conduit was fixing is provided with connection ring, and described balancing weight is restricted by connecting and is connected ring and is connected, and one end of described pull rope is connected with being connected ring；Described one end of first mozzle is connected with the outlet of water pump, the first flexible connection sleeve pipe slidably it is provided with in the other end of the first mozzle, first is flexibly connected sleeve pipe one end is positioned at the first mozzle, the other end extends to outside the first mozzle, and is positioned at and fixing on the end face of the first flexible connection sleeve pipe outside the first mozzle is provided with first annular sealing gasket；It is provided with the first exterior seal ring, described frame or the first mozzle on described first flexible connection outside of sleeve face, between the first mozzle and the first flexible connection sleeve pipe and is provided with the first passage execution device for promoting the first flexible connection sleeve pipe to slide along the first mozzle；
Described first is flexibly connected sleeve pipe medial surface is provided with the first limited block, and the first limited block is near first annular sealing gasket, and the first flexible connection sleeve pipe is interior, be provided with the first check valve apparatus between the first limited block and first annular sealing gasket；
In described first flexible connection sleeve pipe, between the first check valve apparatus and first annular sealing gasket, it is provided with the first fairlead, this first fairlead is positioned at the first flexible connection sleeve pipe middle part radially, first fairlead and first is flexibly connected sleeve pipe and is coaxially disposed or be arranged in parallel, first fairlead is fixed on the first flexible connection sleeve pipe medial surface by the first outside connecting rod, slidably it is provided with the first push rod in first fairlead, on the first push rod lateral surface, by the first push rod, is respectively arranged at two ends with the first block；
Described first mozzle is paralleled with rotating shaft, and the first mozzle and the second mozzle are coaxially disposed, and on the axis direction of rotating shaft, described installation sleeve pipe is between the first mozzle and the second mozzle；The both ends open of the second mozzle, the second flexible connection sleeve pipe slidably it is provided with in second mozzle, second is flexibly connected sleeve pipe one end is positioned at the second mozzle, the other end is flexibly connected sleeve pipe direction toward first and extends, and be positioned at outside the second mozzle, and it be positioned at and fixing on the end face of the second flexible connection sleeve pipe outside the second mozzle be provided with the second Gask-O-Seal；It is provided with the second exterior seal ring, described frame or the second mozzle on described second flexible connection outside of sleeve face, between the second mozzle and the second flexible connection sleeve pipe and is provided with the second passage execution device for promoting the second flexible connection sleeve pipe to slide along the second mozzle；
Described second is flexibly connected sleeve pipe medial surface is provided with the second limited block, and the second limited block is near the second Gask-O-Seal, and the second flexible connection sleeve pipe is interior, be provided with the second check valve apparatus between the second limited block and the second Gask-O-Seal；
In described second flexible connection sleeve pipe, between the second check valve apparatus and the second Gask-O-Seal, it is provided with the second fairlead, this second fairlead is positioned at the second flexible connection sleeve pipe middle part radially, second fairlead and second is flexibly connected sleeve pipe and is coaxially disposed or be arranged in parallel, second fairlead is fixed on the second flexible connection sleeve pipe medial surface by the second outside connecting rod, slidably it is provided with the second push rod in second fairlead, on the second push rod lateral surface, by the second push rod, is respectively arranged at two ends with the second block；
The both ends open of described installation sleeve pipe, is installed and is connected by connecting rod between sleeve pipe and rotating shaft, and the axis installing sleeve pipe is paralleled with rotating shaft, and it is identical to install the spacing between spacing and the axis of the first mozzle and the rotating shaft between axis and the rotating shaft of sleeve pipe；
Described particle sampling device includes that can be taken off is plugged in the sampling cylinder installed in sleeve pipe and at least one of which filter membrane layer being arranged in sampling cylinder, and described sampling cylinder lateral surface is provided with the 3rd exterior seal ring；Described sampling cylinder medial surface is provided with twice the 3rd annular stop block, described filter membrane layer is between twice the 3rd annular stop block, in described sampling cylinder, by one the 3rd check valve apparatus that is respectively arranged at two ends with of sampling cylinder, and twice the 3rd annular stop block is between two the 3rd check valve apparatus；
Described cleaning guiding device includes that can be taken off is plugged in the guide shell installed in sleeve pipe, and the both ends open of described guide shell, guide shell lateral surface is provided with the 4th exterior seal ring；Guide shell medial surface is provided with twice fourth annular limited block, and in guide shell, by one the 4th check valve apparatus that is respectively arranged at two ends with of guide shell, and twice fourth annular limited block is between two the 4th check valve apparatus；
Described first, second, third and the 4th check valve apparatus include valve pocket respectively, the column valve body being arranged in valve pocket, the check valve guide pin bushing being co-axially located in valve pocket and connect the inside connecting rod of valve pocket and check valve guide pin bushing；Described valve pocket lateral surface is provided with middle sealing ring, and the end face of the valve pocket of the first check valve apparatus is resisted against on the first limited block, and the inward flange of other end is provided with the annular boss toward internal projection；The end face of the valve pocket of the second check valve apparatus is resisted against on the second limited block, and the inward flange of other end is provided with the annular boss toward internal projection；The end face of the valve pocket of the 3rd check valve apparatus is resisted against on the 3rd annular stop block, and the inward flange of other end is provided with the annular boss toward internal projection；The end face of the valve pocket of the 4th check valve apparatus is resisted against on fourth annular limited block, and the inward flange of other end is provided with the annular boss toward internal projection；Described cylindrical valve body is positioned between annular boss and check valve guide pin bushing, on cylindrical valve outside, it is provided with annular protrusion near the edge of check valve guide pin bushing, coaxial on column valve body it is provided with guide post, one end of guide post is fixed on column valve body end face, the other end passes check valve guide pin bushing, is arranged with the pretension compression spring that annular protrusion can be made to be resisted against on annular boss on described guide post, between check valve guide pin bushing and column valve body；On cylindrical valve outside, between column valve body and annular boss, it is provided with inner seal ring.
Sucking type membrane filtration particle for marine environmental monitoring the most according to claim 1 takes out storage, it is characterized in that, when installation sleeve pipe and first mozzle at particle sampling device place are in coaxial position, and the first first annular sealing gasket being flexibly connected on sleeve pipe is resisted against on the end face installing sleeve pipe, when the second the second Gask-O-Seal being flexibly connected on sleeve pipe is resisted against on the other end installing sleeve pipe:
One end of first push rod is resisted against on the column valve body end face of the first check valve apparatus, and the other end is resisted against on the column valve body end face of the 3rd check valve apparatus；And first push rod by first and the 3rd the column valve body of check valve apparatus elapse toward check valve guide pin bushing direction, and separate with annular boss；One end of second push rod is resisted against on the column valve body end face of the second check valve apparatus, and the other end is resisted against on the column valve body end face of the 3rd check valve apparatus；And second push rod the column valve body of second and third check valve apparatus is elapsed toward check valve guide pin bushing direction, and separate with annular boss；
When the installation sleeve pipe and the first mozzle cleaning guiding device place is in coaxial position, and the first first annular sealing gasket being flexibly connected on sleeve pipe is resisted against on the end face installing sleeve pipe, when the second the second Gask-O-Seal being flexibly connected on sleeve pipe is resisted against on the other end installing sleeve pipe:
One end of first push rod is resisted against on the column valve body end face of the first check valve apparatus, and the other end is resisted against on the column valve body end face of the 4th check valve apparatus；And first push rod by first and the 4th the column valve body of check valve apparatus elapse toward check valve guide pin bushing direction, and separate with annular boss；One end of second push rod is resisted against on the column valve body end face of the second check valve apparatus, and the other end is resisted against on the column valve body end face of the 4th check valve apparatus；And second push rod by second and the 4th the column valve body of check valve apparatus elapse toward check valve guide pin bushing direction, and separate with annular boss.
Sucking type membrane filtration particle for marine environmental monitoring the most according to claim 1 takes out storage, it is characterized in that, first, second, third and the 4th check valve apparatus guide post on, between column valve body and check valve guide pin bushing, be respectively equipped with the 4th limited block.
4. take out storage according to the sucking type membrane filtration particle for marine environmental monitoring described in claim 1 or 2 or 3, it is characterized in that, the spacing hole paralleled with rotating shaft it is respectively equipped with in each connecting rod, and spacing between each spacing hole and rotating shaft is identical, described frame is provided with the pilot hole paralleled with rotating shaft, and spacing between spacing and spacing hole and the rotating shaft between pilot hole with rotating shaft is identical, in described pilot hole, slidably it is provided with gag lever post.
5. take out storage according to the sucking type membrane filtration particle for marine environmental monitoring described in claim 1 or 2 or 3, it is characterized in that, the end face outward flange being positioned at the outside the first mozzle first flexible connection sleeve pipe is provided with the first flange extended outward, described first annular sealing gasket is arranged in the first flange end face of the second mozzle, and first annular gasket ring is around the first port being flexibly connected sleeve pipe；The end face outward flange being positioned at the outside the second mozzle second flexible connection sleeve pipe is provided with the second flange extended outward, described second Gask-O-Seal is arranged in the second flange end face of the first mozzle, and the second Gask-O-Seal is around the second port being flexibly connected sleeve pipe；The both ends of the surface outward flange installing sleeve pipe is respectively equipped with the third lip extended outward.
6. take out storage according to the sucking type membrane filtration particle for marine environmental monitoring described in claim 1 or 2 or 3, it is characterized in that, being provided with three layers of filter membrane layer being equally spaced in described sampling cylinder, the fenestra of each filter membrane layer is gradually reduced from the first mozzle toward the second mozzle direction.
7. taking out storage according to the sucking type membrane filtration particle for marine environmental monitoring described in claim 1 or 2 or 3, it is characterized in that, it is cylinder or oil cylinder that first and second passage described performs device.
8. take out storage according to the sucking type membrane filtration particle for marine environmental monitoring described in claim 1 or 2 or 3, it is characterized in that, described second mozzle is additionally provided with the effusion meter for measuring the discharge flowing through the second mozzle.
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| CN201410576598.9A CN104458337B (en) | 2014-10-24 | 2014-10-24 | Suction type membrane filtration suspended particle trap for marine environmental monitoring |
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| CN201410576598.9A CN104458337B (en) | 2014-10-24 | 2014-10-24 | Suction type membrane filtration suspended particle trap for marine environmental monitoring |
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| CN104458337B true CN104458337B (en) | 2017-01-11 |
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| CN107441786B (en) * | 2017-09-19 | 2020-06-23 | 中国水产科学研究院南海水产研究所 | Full-automatic seawater sample collecting and filtering system |
| CN108387403B (en) * | 2018-04-13 | 2020-06-23 | 自然资源部第一海洋研究所 | Device for continuously sampling surface water of deep sea |
| CN109030112B (en) * | 2018-07-03 | 2020-12-11 | 浙江省海洋水产研究所 | Construction period suspended solid monitoring system |
| CN108918188B (en) * | 2018-07-03 | 2020-09-22 | 浙江省海洋水产研究所 | In-situ monitoring device for bay suspensoid |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2163381Y (en) * | 1993-07-21 | 1994-04-27 | 山东大学 | Enriching column water quality detecting automatic sampler |
| CN100554920C (en) * | 2007-04-10 | 2009-10-28 | 浙江大学 | A kind of deep ocean hydrothermal sequence sampler |
| EP2015048B1 (en) * | 2007-07-11 | 2011-06-29 | Neotecha AG | In line valve sampling system |
| KR101010432B1 (en) * | 2008-08-30 | 2011-01-21 | 이영수 | Filter apparatus |
| CN201885897U (en) * | 2010-11-18 | 2011-06-29 | 江苏省农业科学院 | Small-diameter deep water sampler |
| CN103439146B (en) * | 2013-09-14 | 2015-07-22 | 淮海工学院 | Positive-pressure pneumatic type automatic water sample sampler |
| CN203745240U (en) * | 2014-02-11 | 2014-07-30 | 浙江省海洋水产研究所 | Near-shore seabed suction type collection device |
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