CN116539361B - Passive sampling device for floating mercury release flux in water - Google Patents
Passive sampling device for floating mercury release flux in water Download PDFInfo
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- CN116539361B CN116539361B CN202310518987.5A CN202310518987A CN116539361B CN 116539361 B CN116539361 B CN 116539361B CN 202310518987 A CN202310518987 A CN 202310518987A CN 116539361 B CN116539361 B CN 116539361B
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- 238000007667 floating Methods 0.000 title claims abstract description 141
- 230000004907 flux Effects 0.000 title claims abstract description 82
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 43
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 229910052753 mercury Inorganic materials 0.000 title claims abstract description 38
- 238000005070 sampling Methods 0.000 title claims abstract description 28
- 238000001179 sorption measurement Methods 0.000 claims abstract description 68
- 239000003463 adsorbent Substances 0.000 claims abstract description 33
- 238000007789 sealing Methods 0.000 claims description 95
- 238000009434 installation Methods 0.000 claims description 13
- 230000000903 blocking effect Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 6
- 210000001503 joint Anatomy 0.000 claims description 6
- 230000000712 assembly Effects 0.000 claims description 5
- 238000000429 assembly Methods 0.000 claims description 5
- 238000005056 compaction Methods 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000010453 quartz Substances 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 239000004809 Teflon Substances 0.000 description 4
- 229920006362 Teflon® Polymers 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000002795 fluorescence method Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000002594 sorbent Substances 0.000 description 1
- 125000006850 spacer group Chemical group 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Health & Medical Sciences (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a passive sampling device for mercury release flux in floating water, which comprises a floating disc, a flux box clamped on the floating disc and an adsorption assembly clamped on the flux box, wherein the flux box is arranged on the floating disc in a clamping mode; the lower end surface of the floating disc is provided with a traction stay rope, and the end part of the traction stay rope is provided with a fixed anchor; the adsorption component comprises an adsorption pipe clamped on the flux box, an adsorbent box clamped inside the adsorption pipe and a fixed joint which is connected with the flux box in a threaded manner and is abutted with the adsorption pipe; the device has reasonable structural design and good portability, can be fixedly floated on the water surface for sampling, is suitable for multi-water body mercury release in medium-long time scale and large-scale regional water environment monitoring, and is suitable for popularization and use.
Description
Technical Field
The invention relates to the technical field of environmental monitoring, in particular to a passive sampling device for mercury release flux in floating water.
Background
Mercury is a global pollutant, and mercury in water is released into the atmosphere in a water-gas exchange mode, so that research on mercury release in water is helpful for understanding the bio-geochemical behavior of mercury.
The current monitoring and research of mercury release in water mainly adopts an active sampling technology, namely, mercury release in water is sampled and analyzed on line in real time by arranging a mercury flux box and a mercury sampling and analyzing device on a water surface float animal, the device needs to collect mercury released in water in the flux box into a quartz tube containing gold or other mercury adsorption materials through a vacuum pump, and then the mercury in the adsorption materials is analyzed by an atomic absorption or atomic fluorescence method after high temperature Jie Cheng mercury vapor.
However, the monitoring device for mercury release flux in water in the prior art is heavy, large in size, high in cost of the sampling device, required to provide electric power for assisting in sampling and analysis of atmospheric mercury, unattended in the sampling process, inflexible in point location layout, and incapable of meeting the research requirements of mercury release flux in water on a long time scale and in a large range.
Disclosure of Invention
Aiming at the technical problems, the invention provides a passive sampling device for the mercury release flux in floating water.
The technical scheme of the invention is as follows: a passive sampling device for floating mercury release flux in water comprises a floating disc, a flux box and an adsorption assembly, wherein the floating disc is provided with a first step hole at the center, the flux box is movably clamped on the first step hole, the top end of the flux box is provided with a second step hole, and the adsorption assembly is movably clamped on the second step hole; a plurality of traction pull ropes are circumferentially equidistant on the lower end surface of the floating disc, and a fixed anchor is arranged at one end of each traction pull rope far away from the floating disc; a first sealing gasket is arranged in the first step hole;
the flux box is hemispherical, and a second sealing gasket which is in butt joint with the first sealing gasket is arranged at the bottom end of the flux box; a third sealing gasket is arranged in the second step hole;
The adsorption component comprises an adsorption pipe movably clamped on the second step hole and abutted against the third sealing gasket, an adsorbent box movably clamped inside the adsorption pipe and a fixed joint connected on the second step hole in a threaded manner and abutted against the adsorption pipe; the upper end and the lower end of the adsorption tube are communicated, the upper end of the adsorbent box is connected with an end cover in a threaded manner, and a plurality of adsorption holes are distributed at the bottom end at equal intervals; the top end of the fixed joint is provided with a cap head.
Further, a guide ring is arranged on the outer side of the lower bottom surface of the floating disc, a swinging ring is arranged on the guide ring through a connecting block, and buffer springs positioned on two sides of the connecting block are sleeved on the guide ring; the traction stay rope is arranged on the lower bottom surface of the swinging ring;
description: when the water flow impacts the swinging ring, the connecting block slides on the guide ring, and the swinging of the swinging ring is restrained and buffered by the buffer spring, so that the water flow impact on the floating disc can be relieved.
Further, the traction stay rope penetrates through the fixed anchor, an installation cavity is formed in the fixed anchor, clamping rotating wheels positioned on two sides of the traction stay rope are arranged in the installation cavity, a rotating seat is rotatably clamped on one clamping rotating wheel, a miniature motor is arranged on the other clamping rotating wheel, a guide rod which is slidably clamped with the rotating seat and the miniature motor is arranged in the installation cavity, and compression springs which are in butt joint with the rotating seat and the miniature motor are sleeved at two ends of the guide rod;
Description: the compression spring is utilized to extrude the rotating seat and the micro motor to be always close to each other, so that the two clamping rotating wheels are clamped at the two sides of the traction stay cord, one of the clamping rotating wheels is driven to rotate by the micro motor, the fixed anchor can move downwards along the traction stay cord and finally contact with a river bed, the floating disc can be prevented from moving on the water surface,
Further, a pressure sensor is arranged on the lower bottom surface of the fixed anchor, and a PLC (programmable logic controller) electrically connected with the pressure sensor and the micro motor is arranged on the floating disc;
Description: through setting up pressure sensor and PLC controller, utilize pressure sensor sensing anchor lower bottom surface's pressure, then control micro motor start or close through the PLC controller to can carry out real-time adjustment to the position of anchor according to the change of depth of water.
Further, a plurality of auxiliary floating plates are distributed in the floating disc at equal intervals, each auxiliary floating plate is in sliding clamping connection with the floating disc, the end part of each auxiliary floating plate penetrates through the floating disc, and a poking rod in sliding clamping connection with the floating disc is arranged on each auxiliary floating plate;
Description: the auxiliary floating plate is pushed out of the floating disc through the poking rod, so that the buoyancy of the floating disc on the water surface can be increased, and the stability of the floating plate is improved.
Further, a blocking sleeve is slidably clamped on the lower bottom surface of the floating disc and positioned on the inner side of the guide ring, and a pushing screw rod which is rotationally clamped with the blocking sleeve is connected to the floating disc in a threaded manner;
description: through setting up the spacer bush, can avoid the floating disc to incline the back under the unrestrained impact effect of wind, outside air gets into inside the flux box through the bottom surface under the floating disc to the sampling accuracy of aquatic mercury release flux has been improved.
Further, a pressing component is arranged at the joint of the floating disc and the flux box; the flux box is circumferentially provided with a clamping groove; the pressing assemblies are arranged in the floating disc at equal intervals and are positioned in the circumference of the first step hole, and each pressing assembly comprises a sleeve, a push rod and an operating rod, wherein the sleeve is in sliding clamping connection with the inside of the floating disc, the push rod is in rotating clamping connection with the inside of the sleeve, the end part of the push rod is provided with a pressing cam, and the operating rod is in sliding clamping connection with the inside of the floating disc and is connected with the push rod after penetrating through the sleeve; one end of the sleeve pipe, which is far away from the compression cam, is provided with an anti-drop spring which is in butt joint with the inner wall of the floating disc, a first bevel gear is sleeved on the ejector rod, and a second bevel gear which is in meshed connection with the first bevel gear is arranged on the operating rod;
Description: during the use, promote sleeve pipe and ejector pin through the action bars and remove on the floating disc to finally make clamping groove joint on compressing tightly cam and the flux box, then rotatory action bars utilizes the meshing effect of first bevel gear and second bevel gear to make the angle of compressing tightly cam rotatory removal, and the flux box moves down along first step hole under compressing tightly the effect of cam, is favorable to improving the sealed effect when first sealed pad and the contact of second sealed pad.
Further, a rotary sealing plate is rotationally clamped in the bottom end of the adsorbent box; the rotary sealing plate is provided with a connecting hole which can be communicated with the adsorption hole; the end cover is in sliding clamping connection with a rotary screw rod in threaded connection with the rotary sealing plate; the top end of the rotary screw rod is provided with a pressure plate which is in butt joint with the lower bottom surface of the fixed joint; the rotary screw rod is sleeved with a sealing spring positioned on the upper end face of the end cover and a limiting plate positioned on the lower bottom face of the end cover;
Description: when the fixed joint presses down the pressure plate, the rotary screw rod moves downwards along the end cover and enables the rotary sealing plate to rotate, and at the moment, the connecting hole is communicated with the adsorption hole; when the fixed joint breaks away from the pressure plate, the rotary screw rod moves upwards under the action of the sealing spring, and at the moment, the connecting holes and the adsorption holes are staggered mutually, so that the inside of the adsorbent box is sealed, and the inside adsorbent is polluted by the external environment in the transfer process of the adsorbent box.
Further, the upper end face of the first sealing gasket is provided with a sealing bulge, and the lower bottom face of the second sealing gasket is provided with a sealing groove movably clamped with the sealing bulge;
description: through setting up sealed arch and seal groove, be favorable to improving the sealed effect between flux box and the floating disc.
Further, an auxiliary sealing sleeve positioned outside the first sealing gasket is arranged inside the first step hole, and a tightening spring ring is sleeved outside the auxiliary sealing sleeve;
Description: after the flux box is clamped inside the first step hole, the auxiliary sealing sleeve is clamped with the flux box under the action of the tightening spring ring, so that secondary sealing of the flux box and the floating disc is realized.
The application method of the invention comprises the following steps:
S1, filling an activated carbon adsorbent in an adsorbent box, clamping the adsorbent box in an adsorbent tube, putting the adsorbent tube and the adsorbent box together in a second step hole in a flux box, and finally connecting a fixed joint on the second step hole through a cap head in a threaded manner;
S3, clamping the flux box in the first step hole on the floating disc, and enabling the second sealing gasket to be in abutting connection with the first sealing gasket;
s3, placing the floating disc on the water surface, and throwing the fixed anchor to the water bottom through a traction stay rope to fix the floating disc;
S4, mercury released in the water is adsorbed by the activated carbon adsorbent under the action of atmospheric diffusion, the activated carbon adsorbent is taken out after adsorption for a preset time, and laboratory detection analysis is carried out, so that mercury release flux of a water body with a certain area in a certain time can be obtained.
Compared with the prior art, the invention has the beneficial effects that:
The device has reasonable structural design and high portability, can be fixedly floated on the water surface to perform sampling work of mercury release flux in water, is suitable for multi-water mercury release in medium-long time scale and large-scale regional water environment monitoring, reduces sampling cost, and saves manpower and material resources;
the first sealing gasket, the second sealing gasket and the third sealing gasket are arranged, so that the connection tightness among the floating disc, the flux box and the adsorption component is further improved, and the sampling reliability of mercury release flux in water is improved;
Third, the rotary sealing plate is arranged at the bottom of the adsorbent box, and the rotary sealing plate is rotated by utilizing the up-and-down movement of the rotary screw rod, so that the conduction and sealing between the inside of the adsorbent box and the external environment can be realized, the inside adsorbent in the transfer process of the adsorbent box can be prevented from being polluted by the external environment, and reliable data support is provided for the decision making of water environment treatment.
Drawings
FIG. 1 is a longitudinal cross-sectional view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a top view of the present invention;
FIG. 4 is a schematic illustration of the attachment of the anchor to the pull cord of the present invention;
FIG. 5 is a schematic view of the internal structure of the anchor of the present invention;
FIG. 6 is a schematic illustration of the connection of the guide ring to the float plate of the present invention;
FIG. 7 is a schematic diagram of the connection of an auxiliary floating plate to a floating plate according to the present invention;
FIG. 8 is a schematic illustration of the attachment of the adsorption module to the flux box of the present invention;
FIG. 9 is a schematic structural view of the sorbent cartridge of the invention;
FIG. 10 is an enlarged partial schematic view of the present invention at A in FIG. 1;
FIG. 11 is a schematic illustration of the connection of the ejector pin to the sleeve of the present invention;
the device comprises a 1-floating disc, a 10-first stepped hole, a 11-traction stay rope, a 12-fixed anchor, a 120-installation cavity, a 121-clamping rotating wheel, a 122-rotating seat, a 123-miniature motor, a 124-guide rod, a 125-compression spring, a 13-first sealing pad, a 130-sealing bulge, a 14-guide ring, a 140-buffer spring, a 15-swinging ring, a 150-connecting block, a 16-auxiliary floating plate, a 160-toggle rod, a 17-blocking sleeve, a 170-pushing screw, a 18-auxiliary sealing sleeve, a 180-tightening spring ring, a 2-pass box, a 20-second stepped hole, a 21-second sealing pad, a 210-sealing groove, a 22-third sealing pad, a 23-clamping groove, a 3-adsorption component, a 30-adsorption tube, a 31-adsorbent box, a 310-end cover, a 311-adsorption hole, a 312-rotating sealing plate, a 3120-connecting hole, a 313-rotating screw rod, a 314-pressure plate, a 315-sealing spring, a 316-limiting plate, a 32-fixed joint, a 320-cap head, a 4-pressing component, a 40-sleeve, a 400-cam-400-release-preventing spring, a 41-bevel gear, a 43-430 and a second bevel gear.
Detailed Description
Example 1
The passive sampling device for the mercury release flux in floating water as shown in fig. 1, 8 and 10 comprises a floating disc 1, a flux box 2 and an adsorption assembly 3, wherein the floating disc 1 is provided with a first step hole 10 at the center position, the flux box is movably clamped on the first step hole 10, the top end of the flux box is provided with a second step hole 20, and the adsorption assembly 3 is movably clamped on the second step hole 20; a plurality of traction stay ropes 11 are circumferentially equidistant on the lower end surface of the floating disc 1, and a fixed anchor 12 is arranged at one end, far away from the floating disc 1, of each traction stay rope 11; a first sealing gasket 13 is arranged inside the first step hole 10; the floating disc 1 is made of rubber material, the outer diameter of the floating disc 1 is 40cm, and the inner diameter of the first step hole 10 is 20cm;
As shown in fig. 1, 8 and 10, the flux box 2 is hemispherical, and a second sealing gasket 21 abutting against the first sealing gasket 13 is arranged at the bottom end of the flux box 2; a third sealing gasket 22 is arranged inside the second step hole 20; the flux box 2 is made of colorless transparent quartz material; the second stepped hole 20 has an inner diameter of 1cm;
As shown in fig. 1 and 8, the adsorption assembly 3 includes an adsorption tube 30 movably clamped on the second stepped hole 20 and abutted against the third sealing gasket 22, an adsorbent box 31 movably clamped inside the adsorption tube 30, and a fixed joint 32 screwed on the second stepped hole 20 and abutted against the adsorption tube 30; the upper end and the lower end of the adsorption tube 30 are communicated, the upper end of the adsorbent box 31 is in threaded connection with an end cover 310, and a plurality of adsorption holes 311 are distributed at equal intervals at the bottom end; the top end of the fixed joint 32 is provided with a cap head 320, the adsorption tube 30 is a stainless steel liner tube, and the fixed joint 32 is made of Teflon materials.
Example 2
The passive sampling device for the mercury release flux in floating water as shown in fig. 1,2,3, 4, 5,6,7,8 and 10 comprises a floating disc 1, a flux box 2 and an adsorption component 3, wherein the floating disc 1 is provided with a first step hole 10 at the center, the flux box is movably clamped on the first step hole 10, the top end of the flux box is provided with a second step hole 20, and the adsorption component 3 is movably clamped on the second step hole 20; a plurality of traction stay ropes 11 are circumferentially equidistant on the lower end surface of the floating disc 1, and a fixed anchor 12 is arranged at one end, far away from the floating disc 1, of each traction stay rope 11; a first sealing gasket 13 is arranged inside the first step hole 10; the floating disc 1 is made of rubber material, the outer diameter of the floating disc 1 is 40cm, and the inner diameter of the first step hole 10 is 20cm; the traction stay cord 11 penetrates through the fixed anchor 12, an installation cavity 120 is formed in the fixed anchor 12, clamping rotating wheels 121 positioned on two sides of the traction stay cord 11 are arranged in the installation cavity 120, a rotating seat 122 is rotatably clamped on one clamping rotating wheel 121, a micro motor 123 is arranged on the other clamping rotating wheel 121, a guide rod 124 which is slidably clamped with the rotating seat 122 and the micro motor 123 is arranged in the installation cavity 120, and compression springs 125 which are abutted with the rotating seat 122 and the micro motor 123 are sleeved at two ends of the guide rod 124; the lower bottom surface of the fixed anchor 12 is provided with a pressure sensor, and the floating disc 1 is provided with a PLC controller electrically connected with the pressure sensor and the micro motor 123; the outer side of the lower bottom surface of the floating disc 1 is provided with a guide ring 14, a swinging ring 15 is arranged on the guide ring 14 through a connecting block 150, and buffer springs 140 positioned at two sides of the connecting block 150 are sleeved on the guide ring 14; the traction stay 11 is arranged on the lower bottom surface of the swinging ring 15; 6 auxiliary floating plates 16 are distributed in the floating disc 1 at equal intervals, each auxiliary floating plate 16 is in sliding clamping connection with the inside of the floating disc 1, the end part of each auxiliary floating plate penetrates through the floating disc 1, and each auxiliary floating plate 16 is provided with a poking rod 160 in sliding clamping connection with the floating disc 1; the lower bottom surface of the floating disc 1 is positioned at the inner side of the guide ring 14 and is slidably clamped with a blocking sleeve 17, and the floating disc 1 is in threaded connection with a pushing screw 170 rotationally clamped with the blocking sleeve 17; an auxiliary sealing sleeve 18 positioned outside the first sealing gasket 13 is arranged inside the first step hole 10, and a tightening spring ring 180 is sleeved outside the auxiliary sealing sleeve 18;
As shown in fig. 1, 8 and 10, the flux box 2 is hemispherical, and a second sealing gasket 21 abutting against the first sealing gasket 13 is arranged at the bottom end of the flux box 2; a third sealing gasket 22 is arranged inside the second step hole 20; the flux box 2 is made of colorless transparent quartz material; the second stepped hole 20 has an inner diameter of 1cm; the upper end surface of the first sealing gasket 13 is provided with a sealing bulge 130, and the lower bottom surface of the second sealing gasket 21 is provided with a sealing groove 210 movably clamped with the sealing bulge 130;
As shown in fig. 1 and 8, the adsorption assembly 3 includes an adsorption tube 30 movably clamped on the second stepped hole 20 and abutted against the third sealing gasket 22, an adsorbent box 31 movably clamped inside the adsorption tube 30, and a fixed joint 32 screwed on the second stepped hole 20 and abutted against the adsorption tube 30; the upper end and the lower end of the adsorption tube 30 are communicated, the upper end of the adsorbent box 31 is in threaded connection with an end cover 310, and a plurality of adsorption holes 311 are distributed at equal intervals at the bottom end; the top end of the fixed joint 32 is provided with a cap head 320, the adsorption tube 30 is a stainless steel liner tube, and the fixed joint 32 is made of Teflon materials.
Example 3
The passive sampling device for the mercury release flux in floating water as shown in fig. 1, 8 and 10 comprises a floating disc 1, a flux box 2 and an adsorption assembly 3, wherein the floating disc 1 is provided with a first step hole 10 at the center position, the flux box is movably clamped on the first step hole 10, the top end of the flux box is provided with a second step hole 20, and the adsorption assembly 3 is movably clamped on the second step hole 20; a plurality of traction stay ropes 11 are circumferentially equidistant on the lower end surface of the floating disc 1, and a fixed anchor 12 is arranged at one end, far away from the floating disc 1, of each traction stay rope 11; a first sealing gasket 13 is arranged inside the first step hole 10; the floating disc 1 is made of rubber material, the outer diameter of the floating disc 1 is 40cm, and the inner diameter of the first step hole 10 is 20cm;
As shown in fig. 1, 8 and 10, the flux box 2 is hemispherical, and a second sealing gasket 21 abutting against the first sealing gasket 13 is arranged at the bottom end of the flux box 2; a third sealing gasket 22 is arranged inside the second step hole 20; the flux box 2 is made of colorless transparent quartz material; the second stepped hole 20 has an inner diameter of 1cm;
As shown in fig. 1, 8 and 9, the adsorption assembly 3 includes an adsorption tube 30 movably clamped on the second stepped hole 20 and abutted against the third sealing gasket 22, an adsorbent cartridge 31 movably clamped inside the adsorption tube 30, and a fixed joint 32 screwed on the second stepped hole 20 and abutted against the adsorption tube 30; the upper end and the lower end of the adsorption tube 30 are communicated, the upper end of the adsorbent box 31 is in threaded connection with an end cover 310, and a plurality of adsorption holes 311 are distributed at equal intervals at the bottom end; the top end of the fixed joint 32 is provided with a cap head 320, the adsorption tube 30 is a stainless steel liner tube, and the fixed joint 32 is made of Teflon material; a rotary sealing plate 312 is rotatably clamped inside the bottom end of the adsorbent box 31; the rotary sealing plate 312 is provided with a connection hole 3120 capable of communicating with the suction hole 311; a rotary lead screw 313 in threaded connection with the rotary sealing plate 312 is in sliding clamping connection with the end cover 310; the top end of the rotary screw 313 is provided with a pressure plate 314 which is abutted with the lower bottom surface of the fixed joint 32; the rotary screw 313 is sleeved with a sealing spring 315 positioned on the upper end face of the end cover 310 and a limiting plate 316 positioned on the lower bottom face of the end cover 310;
As shown in fig. 3, 10 and 11, a compacting component 4 is arranged at the joint of the floating disc 1 and the flux box 2; the flux box 2 is circumferentially provided with a clamping groove 23; the two pressing assemblies 4 are arranged, each pressing assembly 4 is equidistantly distributed in the floating disc 1 and located in the circumferential direction of the first step hole 10, and each pressing assembly 4 comprises a sleeve 40, a push rod 42 and an operating rod 43, wherein the sleeve 40 is in sliding clamping connection with the floating disc 1, the push rod 42 is in rotating clamping connection with the sleeve 40, the end part of the push rod is provided with a pressing cam 41, the operating rod 43 is in sliding clamping connection with the floating disc 1, and the operating rod is connected with the push rod 42 after penetrating through the sleeve 40; the sleeve 40 is provided with the anticreep spring 400 that is located the one end that is kept away from the clamp cam 41 and is held in touch with the inner wall of floating disc 1, and the cover is equipped with first bevel gear 420 on ejector pin 42, is provided with the second bevel gear 430 of being connected with first bevel gear 420 meshing on the action bars 43.
Example 4
The passive sampling device for the mercury release flux in floating water as shown in fig. 1,2,3, 4, 5,6,7,8 and 10 comprises a floating disc 1, a flux box 2 and an adsorption component 3, wherein the floating disc 1 is provided with a first step hole 10 at the center, the flux box is movably clamped on the first step hole 10, the top end of the flux box is provided with a second step hole 20, and the adsorption component 3 is movably clamped on the second step hole 20; a plurality of traction stay ropes 11 are circumferentially equidistant on the lower end surface of the floating disc 1, and a fixed anchor 12 is arranged at one end, far away from the floating disc 1, of each traction stay rope 11; a first sealing gasket 13 is arranged inside the first step hole 10; the floating disc 1 is made of rubber material, the outer diameter of the floating disc 1 is 40cm, and the inner diameter of the first step hole 10 is 20cm; the traction stay cord 11 penetrates through the fixed anchor 12, an installation cavity 120 is formed in the fixed anchor 12, clamping rotating wheels 121 positioned on two sides of the traction stay cord 11 are arranged in the installation cavity 120, a rotating seat 122 is rotatably clamped on one clamping rotating wheel 121, a micro motor 123 is arranged on the other clamping rotating wheel 121, a guide rod 124 which is slidably clamped with the rotating seat 122 and the micro motor 123 is arranged in the installation cavity 120, and compression springs 125 which are abutted with the rotating seat 122 and the micro motor 123 are sleeved at two ends of the guide rod 124; the lower bottom surface of the fixed anchor 12 is provided with a pressure sensor, and the floating disc 1 is provided with a PLC controller electrically connected with the pressure sensor and the micro motor 123; the outer side of the lower bottom surface of the floating disc 1 is provided with a guide ring 14, a swinging ring 15 is arranged on the guide ring 14 through a connecting block 150, and buffer springs 140 positioned at two sides of the connecting block 150 are sleeved on the guide ring 14; the traction stay 11 is arranged on the lower bottom surface of the swinging ring 15; 6 auxiliary floating plates 16 are distributed in the floating disc 1 at equal intervals, each auxiliary floating plate 16 is in sliding clamping connection with the inside of the floating disc 1, the end part of each auxiliary floating plate penetrates through the floating disc 1, and each auxiliary floating plate 16 is provided with a poking rod 160 in sliding clamping connection with the floating disc 1; the lower bottom surface of the floating disc 1 is positioned at the inner side of the guide ring 14 and is slidably clamped with a blocking sleeve 17, and the floating disc 1 is in threaded connection with a pushing screw 170 rotationally clamped with the blocking sleeve 17; an auxiliary sealing sleeve 18 positioned outside the first sealing gasket 13 is arranged inside the first step hole 10, and a tightening spring ring 180 is sleeved outside the auxiliary sealing sleeve 18;
As shown in fig. 1, 8 and 10, the flux box 2 is hemispherical, and a second sealing gasket 21 abutting against the first sealing gasket 13 is arranged at the bottom end of the flux box 2; a third sealing gasket 22 is arranged inside the second step hole 20; the flux box 2 is made of colorless transparent quartz material; the second stepped hole 20 has an inner diameter of 1cm; the upper end surface of the first sealing gasket 13 is provided with a sealing bulge 130, and the lower bottom surface of the second sealing gasket 21 is provided with a sealing groove 210 movably clamped with the sealing bulge 130;
As shown in fig. 1, 8 and 9, the adsorption assembly 3 includes an adsorption tube 30 movably clamped on the second stepped hole 20 and abutted against the third sealing gasket 22, an adsorbent cartridge 31 movably clamped inside the adsorption tube 30, and a fixed joint 32 screwed on the second stepped hole 20 and abutted against the adsorption tube 30; the upper end and the lower end of the adsorption tube 30 are communicated, the upper end of the adsorbent box 31 is in threaded connection with an end cover 310, and a plurality of adsorption holes 311 are distributed at equal intervals at the bottom end; the top end of the fixed joint 32 is provided with a cap head 320, the adsorption tube 30 is a stainless steel liner tube, and the fixed joint 32 is made of Teflon material; a rotary sealing plate 312 is rotatably clamped inside the bottom end of the adsorbent box 31; the rotary sealing plate 312 is provided with a connection hole 3120 capable of communicating with the suction hole 311; a rotary lead screw 313 in threaded connection with the rotary sealing plate 312 is in sliding clamping connection with the end cover 310; the top end of the rotary screw 313 is provided with a pressure plate 314 which is abutted with the lower bottom surface of the fixed joint 32; the rotary screw 313 is sleeved with a sealing spring 315 positioned on the upper end face of the end cover 310 and a limiting plate 316 positioned on the lower bottom face of the end cover 310;
As shown in fig. 3, 10 and 11, a compacting component 4 is arranged at the joint of the floating disc 1 and the flux box 2; the flux box 2 is circumferentially provided with a clamping groove 23; the two pressing assemblies 4 are arranged, each pressing assembly 4 is equidistantly distributed in the floating disc 1 and located in the circumferential direction of the first step hole 10, and each pressing assembly 4 comprises a sleeve 40, a push rod 42 and an operating rod 43, wherein the sleeve 40 is in sliding clamping connection with the floating disc 1, the push rod 42 is in rotating clamping connection with the sleeve 40, the end part of the push rod is provided with a pressing cam 41, the operating rod 43 is in sliding clamping connection with the floating disc 1, and the operating rod is connected with the push rod 42 after penetrating through the sleeve 40; the sleeve 40 is provided with the anticreep spring 400 that is located the one end that is kept away from the clamp cam 41 and is held in touch with the inner wall of floating disc 1, and the cover is equipped with first bevel gear 420 on ejector pin 42, is provided with the second bevel gear 430 of being connected with first bevel gear 420 meshing on the action bars 43.
It should be noted that, the PLC controller, the pressure sensor, and the micro motor 123 used in the present invention all adopt the prior art, and are not limited herein, and corresponding products may be selected according to actual needs.
Claims (8)
1. The passive sampling device for the mercury release flux in the floating water is characterized by comprising a floating disc (1) with a first step hole (10) at the center, a flux box (2) movably clamped on the first step hole (10) and provided with a second step hole (20) at the top end, and an adsorption assembly (3) movably clamped on the second step hole (20); a plurality of traction pull ropes (11) are circumferentially equidistant on the lower end surface of the floating disc (1), and a fixed anchor (12) is arranged at one end, far away from the floating disc (1), of each traction pull rope (11); a first sealing gasket (13) is arranged in the first step hole (10);
The flux box (2) is hemispherical, and a second sealing gasket (21) which is in butt joint with the first sealing gasket (13) is arranged at the bottom end of the flux box (2); a third sealing gasket (22) is arranged in the second step hole (20);
The adsorption assembly (3) comprises an adsorption pipe (30) movably clamped on the second step hole (20) and abutted against the third sealing gasket (22), an adsorbent box (31) movably clamped inside the adsorption pipe (30) and a fixed joint (32) connected on the second step hole (20) in a threaded manner and abutted against the adsorption pipe (30); the upper end and the lower end of the adsorption tube (30) are communicated, the upper end of the adsorbent box (31) is in threaded connection with an end cover (310), and a plurality of adsorption holes (311) are distributed at the bottom end at equal intervals; the top end of the fixed joint (32) is provided with a cap head (320);
A rotary sealing plate (312) is rotatably clamped in the bottom end of the adsorbent box (31); a connection hole (3120) which can be communicated with the adsorption hole (311) is arranged on the rotary sealing plate (312); a rotary lead screw (313) in threaded connection with the rotary sealing plate (312) is in sliding clamping connection with the end cover (310); a pressing plate (314) which is in butt joint with the lower bottom surface of the fixed joint (32) is arranged at the top end of the rotary screw rod (313); the rotary screw (313) is sleeved with a sealing spring (315) positioned on the upper end face of the end cover (310) and a limiting plate (316) positioned on the lower bottom face of the end cover (310).
2. The passive sampling device for mercury release flux in floating water according to claim 1, wherein a guide ring (14) is arranged on the outer side of the lower bottom surface of the floating disc (1), a swinging ring (15) is arranged on the guide ring (14) through a connecting block (150), and buffer springs (140) positioned on two sides of the connecting block (150) are sleeved on the guide ring (14); the traction stay cord (11) is arranged on the lower bottom surface of the swinging ring (15).
3. The passive sampling device for mercury release flux in floating water according to claim 1, wherein the traction pull rope (11) penetrates through the fixed anchor (12), an installation cavity (120) is formed in the fixed anchor (12), clamping rotating wheels (121) located on two sides of the traction pull rope (11) are arranged in the installation cavity (120), one clamping rotating wheel (121) is rotatably clamped with a rotating seat (122), the other clamping rotating wheel (121) is provided with a micro motor (123), a guide rod (124) which is slidably clamped with the rotating seat (122) and the micro motor (123) is arranged in the installation cavity (120), and compression springs (125) which are abutted with the rotating seat (122) and the micro motor (123) are respectively sleeved at two ends of the guide rod (124).
4. A passive sampling device for mercury release flux in floating water according to claim 3, characterized in that the bottom surface of the anchor (12) is provided with a pressure sensor, and the floating disc (1) is provided with a PLC controller electrically connected with the pressure sensor and the micro motor (123).
5. The passive sampling device for mercury release flux in floating water according to claim 1, wherein a plurality of auxiliary floating plates (16) are distributed in the floating plate (1) at equal intervals, each auxiliary floating plate (16) is slidably clamped in the floating plate (1) and the end part of each auxiliary floating plate penetrates through the floating plate (1), and a toggle rod (160) slidably clamped with the floating plate (1) is arranged on each auxiliary floating plate (16).
6. The passive sampling device for mercury release flux in floating water according to claim 2, wherein a blocking sleeve (17) is slidably clamped on the inner side of the guide ring (14) on the lower bottom surface of the floating disc (1), and a pushing screw (170) rotationally clamped with the blocking sleeve (17) is connected to the floating disc (1) in a threaded manner.
7. A passive sampling device for mercury release flux in floating water according to claim 1, characterized in that a compacting component (4) is arranged at the connection of the floating disc (1) and the flux box (2); the flux box (2) is circumferentially provided with a clamping groove (23); the pressing assemblies (4) are arranged in the floating disc (1), all the pressing assemblies (4) are distributed in the floating disc (1) at equal intervals and are located in the circumferential direction of the first step hole (10), each pressing assembly (4) comprises a sleeve (40) which is in sliding clamping connection with the inside of the floating disc (1), an ejector rod (42) which is in rotating clamping connection with the inside of the sleeve (40) and is provided with a pressing cam (41) at the end part, and an operating rod (43) which is in sliding clamping connection with the ejector rod (42) on the inside of the floating disc (1) and penetrates through the sleeve (40); one end of the sleeve (40) far away from the compaction cam (41) is provided with an anti-falling spring (400) which is abutted against the inner wall of the floating disc (1), a first bevel gear (420) is sleeved on the ejector rod (42), and a second bevel gear (430) which is meshed and connected with the first bevel gear (420) is arranged on the operating rod (43).
8. The passive sampling device for mercury release flux in floating water according to claim 1, wherein a sealing protrusion (130) is arranged on the upper end surface of the first sealing pad (13), and a sealing groove (210) movably clamped with the sealing protrusion (130) is arranged on the lower bottom surface of the second sealing pad (21).
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