CN103267657B - Fidelity secondary sampling equipment for bottom sediments - Google Patents
Fidelity secondary sampling equipment for bottom sediments Download PDFInfo
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- CN103267657B CN103267657B CN201310205050.9A CN201310205050A CN103267657B CN 103267657 B CN103267657 B CN 103267657B CN 201310205050 A CN201310205050 A CN 201310205050A CN 103267657 B CN103267657 B CN 103267657B
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Abstract
The invention relates to fidelity secondary sampling equipment for bottom sediments. The fidelity secondary sampling equipment comprises an upper barrel assembly and a lower barrel assembly, a piston assembly, a turning cover assembly, a middle supporting plate, an upper guide rail barrel, a lower guide rail barrel and a sampling barrel, wherein the middle supporting plate is mounted between the upper barrel assembly and the lower barrel assembly; the upper guide rail barrel is mounted between the middle supporting plate and an upper end sealing disc; the turning cover assembly and the piston assembly are mounted in the lower barrel assembly; and the sampling barrel is mounted at the lower end of the piston assembly. According to the fidelity secondary sampling equipment disclose4d by the invention, a designed mandrel and a designed elastic clamping plate structure can stop the sampling barrel from moving upwards in the sampling process; an overlying water check valve can guarantee that overlying water can be smoothly discharged out in the sampling process, and the low-disturbance sampling is realized; a designed secondary sampling check valve can be used for the secondary sampling so that the sampling rate is improved and the sampling cost is saved; and a sealing piece between two adjacent parts and a sampling back turning cover are automatically closed to guarantee the sealing of a system. The fidelity secondary sampling equipment disclosed by the invention is compact in structure, high in sampling rate and good in high-fidelity effect, the sampling time is saved and the cost is low; and the fidelity secondary sampling equipment is applicable to fidelity sampling of the bottom sediments, natural gas hydrates and mud samples in rivers and lakes.
Description
Technical field
The present invention relates to a kind of Seafloor sediment sampling equipment, specifically a kind of marine bottom sediment fidelity secondary sample equipment.
Background technology
Seafloor sediment sampling equipment is a kind of exploring equipment being used for gathering deposit on marine-bottom surface, and the sediment sample collected may be used for geological sciences, bio-science research.
Seafloor sediment sampling equipment is mainly used in:
1. Deep Sea Minerals exploration, comprises search for oil and seabed new forms of energy---gas hydrate etc.;
2. the acquisition of biological sample;
3. marine engineering geology prospecting, comprise coastal engineering prospecting, navigation channel is reconnoitred, seabed tunnel geological mapping, subsea cable, optical cable, gas pipe line, oil pipeline prospecting etc.;
4. global climate and Environmental Studies, submarine sampling is also the important means of research weather and environmental change;
5. carry out marine geology research, comprise seafloor topography, Marine Geology structure etc.;
6. Marine Geology charting is carried out, for delimiting economic Precinct and continental platform boundary provides foundation.
Existing sediment sampling equipment ubiquity sampling rate is low, cannot the shortcoming such as fidelity or fidelity weak effect.The sampling rate of sampling equipment is low, often causes the sample obtained to get less than sample very little or at all, thus causes sampling cost excessive.Along with the raising that marine resources investigation requires, also more and more higher to the quality requirements of sample, especially in order to study the microorganism in marine bottom sediment, only have and under old terms, research is carried out to sample as far as possible and correctly for scientific research provides real data, could thus require that sampling equipment must have fidelity function.Meanwhile, all require that there is fidelity function in gas hydrate sample collection and sample transportation.
Therefore, the sampling rate improving sediment sampling equipment and the fidelity function meeting sample are the inevitable requirements of sediment sampling equipment development.
Summary of the invention
The object of the invention is for solving the deficiencies in the prior art, and provide a kind of marine bottom sediment fidelity secondary sample equipment that can meet high sampling rate and the requirement of sample fidelity, in order to complete collection and the transport task of deposit on marine-bottom surface sample or gas hydrate sample better.
To achieve these goals, the technical solution used in the present invention is: provide a kind of marine bottom sediment fidelity secondary sample equipment, comprise top cylinder assembly, doffing assembly, piston assembly, renovates assembly, intermediate support plate and upper and lower lead rail cylinder, linear bearing with carry hollow tubular;
Described top cylinder assembly comprises top cylinder end cap, upper end sealing pad, top cylinder cylindrical shell, top cylinder ring flange and O type circle and back-up ring A; Described top cylinder cylindrical shell and top cylinder end cap are connected by screw; Sealed by O type circle and back-up ring A between top cylinder cylindrical shell and upper end sealing pad, top cylinder cylindrical shell and top cylinder ring flange are welded to connect; Top cylinder ring flange lower end section of flange there is annular grooving, O type circle is housed in annular grooving; Top cylinder assembly is connected by screw by the top cylinder ring flange of its lower end and the doffing upper flanges of doffing assembly; Between top cylinder assembly and doffing assembly, intermediate support plate is installed, upper rail cylinder is installed between intermediate support plate and upper end sealing pad;
Described doffing assembly comprises end flanges, doffing end cap under doffing cylindrical shell, doffing upper flanges, doffing; Upper end and the doffing upper flanges of described doffing cylindrical shell are welded to connect, and the lower end of doffing cylindrical shell is connected with doffing lower end flange welding; Described doffing end cover screw to be connected under doffing in end flanges;
Described assembly of renovating is arranged in doffing assembly, described renovate assembly contain renovate, renovate external cable, renovate draw screw outward, renovate O type circle, renovate cylinder, renovate bearing, U-bolt, split pin and torsion spring; Described outside of renovating is provided with and renovates external cable, renovates the external cable other end and renovates and draw screw to be connected outward, renovate and draw screw to be arranged on doffing cylinder body outer wall outward, renovate outside cylinder and draw screw and doffing cylinder body outer wall to be threaded engagement; Renovate annular grooving, grooving has been provided with and renovates O type circle, renovated and be connected with U-bolt with renovating between bearing; The end of described U-bolt is provided with split pin, U-bolt has been installed torsion spring; Described bearing of renovating is screwed and is renovating on cylinder; Seal with O type circle and back-up ring B between the described cylindrical shell renovating cylinder and doffing assembly, and be connected with doffing end cap with circumferential stop screw;
Described piston assembly is arranged in doffing assembly, and described piston assembly contains piston, piston sealing pad, overlying water retaining valve, straight spring, piston upper end sealing pad, secondary sample retaining valve, hydraulic pressure threaded line pipe web member, plays clamp terminal pad; Lower end and the piston sealing pad of described piston are connected by screw, and described overlying water retaining valve and the cone match of piston sealing pad, the straight hole of piston is provided with straight spring; Overlying water retaining valve is interacted by straight spring and piston, and when overlying water retaining valve moves upward, valve port is opened; Described piston upper end sealing pad with between piston by being threaded, have a conical surface opening in the middle of it, and coordinate with secondary sample retaining valve; The lower end cover of described secondary sample retaining valve has straight spring, and straight spring fitting is in the upper end perforate of piston, and when secondary sample retaining valve moves downward, valve port is opened; Described hydraulic pressure threaded line pipe web member is connected with screw with between sealing pad on piston, and its lower surface has ring groove, and ring groove is built with O type circle, and its upper end is connected with hydraulic pressure threaded line pipe by middle threaded hole; Described bullet clamp terminal pad is arranged on the top of hydraulic pressure threaded line pipe web member by screw, play on clamp terminal pad and have four pairs of perforates, wherein two couple of upper end is for being provided with spring column pin, spring column pin is embedded in two flutings of axle, and two pairs of perforates of lower end install two to bullet clamp with screw and plain washer respectively; The upper end of piston assembly is connected with axle by spring pin, and the lower end of piston assembly is connected with sampler barrel by piston sealing pad;
Described linear bearing is arranged on upper cylinder end and covers, linear bearing with carry hollow tubular and coordinate, the internal sleeve carrying hollow tubular hydraulic pressure threaded line pipe, carry on hollow tubular and stop nut is installed, carry hollow tubular lower end and axle is threaded connection, hydraulic pressure threaded line pipe and piston assembly are connected by screw;
Described sampler barrel is that transparent polycarbonate pipe is made, find that when sampling operation sampling rate is too low, then from hydraulic pressure threaded line pipe input high pressure sea water, high pressure sea water to the hydraulic pressure threaded line pipe web member in piston assembly, forces the secondary sample one-way valve opens of piston assembly via hydraulic pressure threaded line pipe, water under high pressure is by secondary sample retaining valve, and enter in sampler barrel via drainage channel, undesirable sample is discharged sampler barrel, equipment is shifted, sub-sampling again, realizes secondary sample.
Top cylinder cylindrical shell of the present invention, doffing inner barrel, upper rail cylinder internal spray insulation material, and each connecting portion all employs the sealing of O type circle, comprises between linear bearing and upper end sealing pad, renovate outer drawing between screw and lower drum outer wall, guarantees heat-insulation pressure keeping effect.
The end cap of doffing assembly of the present invention and renovate between assembly and define an annular cylindrical space, in sampling process, two are just stuck in described annular cylindrical space to left and right bullet clamp, left and right bullet clamp is played clamp spring and is strutted to both sides, the upper transverse plane of left and right bullet clamp contacts with the lower end plane renovating cylinder, stops sampler barrel in sampling process to move upward.
Axle of the present invention is connected by spring column pin with between piston assembly and can has certain relative displacement, when sampling, bullet clamp is in annulus, relative displacement now between axle and piston assembly is zero, two of being arranged in axle play clamp spring and strut two bullet clamp, to ensure that sampler barrel can not move upward in sampling process, carry hollow tubular after sampling is completed and upwards pull axle, axle and piston generation relative displacement, play clamp spring to middle shrinkage, and by a left side, right bullet clamp pulls to centre, it is made to depart from annular cylindrical space, thus make sampler barrel to take in lead rail cylinder smoothly.
Of the present invention carrying on hollow tubular is provided with stop nut, in sampling process, carry hollow tubular to move up and down in linear bearing, when two are in annular cylindrical space to left and right bullet clamp, stop nut contacts with linear bearing just, make to carry hollow tubular and arrive the extreme position moved downward, guarantee that sampler barrel can not depart from sampling equipment in the process reclaiming sampler barrel.
Of the present invention renovating continues to be in the state that will close under the effect of torsion spring, renovate assembly when sampler barrel is incorporated in upper rail cylinder completely automatically to close, outward winding to renovate after sampler reclaims and outer draw screw, pull and renovate external cable and make to renovate and open taking-up sample.
In the sedimental process of sampler barrel injection of the present invention, the seawater of sampler barrel upper end makes the overlying water one-way valve opens in piston assembly, and seawater discharges sampler barrel by overlying water drainage channel; At recovery sampler barrel in the process of upper rail cylinder, overlying water retaining valve turns off, and makes the airtight formation negative pressure in sampler barrel upper end, prevents from dropping at the sediment sample of sampler barrel inside.
Sampler barrel of the present invention is that transparent polycarbonate pipe is made, find that when sampling operation sampling rate is too low, then by hydraulic pressure threaded line pipe input high pressure sea water, high pressure sea water forces the secondary sample one-way valve opens of piston assembly, water under high pressure enters in sampler barrel, the sample not meeting sampling rate requirement is discharged sampler barrel, is shifted by equipment, sub-sampling again, realizes secondary sample.
A kind of marine bottom sediment fidelity secondary sample equipment of the present invention compared with prior art tool has the following advantages:
1. the left and right bullet clamp of the present invention's design, the mechanism that plays clamp spring and axle composition can ensure that sampler barrel two plays clamp when injection sedimentary deposit and is stuck in the lower end plane renovating cylinder, guarantee that in sampling process, sampler barrel can not move upward because of sampling resistance, thus ensure comparatively high sampling rate.When the overlying water retaining valve designed in the present invention can ensure to sample, overlying water is discharged smoothly, and sample is gathered smoothly, achieves low disturbance sampling simultaneously.
2. the present invention can realize secondary sample.When sampling rate is lower, by pouring into high pressure sea water in hydraulic pressure threaded line pipe, seawater is through hydraulic pressure threaded line pipe web member, force secondary sample one-way valve opens, high pressure sea water is by secondary sample retaining valve, enter in sampler barrel through drainage channel, undesirable sample is washed out, just can carry out second time sampling.Realize secondary sample sampling, reduce the cost of sampling.
3. equipment fidelity of the present invention is effective.Because this equipment have employed in upper and lower cylinder inner barrel, upper rail cylinder internal spray insulation material, and each connecting portion all employs the measures such as O type circle sealing, and after sampling in sample income lead rail cylinder, renovate assembly automatic close sealing, therefore ensure that the fidelity effect of sample.
4. equipment of the present invention has compact conformation, sampling rate is high, fidelity is respond well, economizes sample time and samples the features such as cost is low, being applicable to the fidelity sampling of mud sample in marine bottom sediment, gas hydrate, rivers and lakes.
Accompanying drawing explanation
Fig. 1 is marine bottom sediment fidelity secondary sample device structure schematic diagram of the present invention.State is not reclaimed for sampler barrel in figure.
Fig. 2 renovates assembly structure schematic diagram in the present invention.
Fig. 3 is that piston assembly in the present invention and two is to playing clamp and playing the structural representation of clamp spring.
Fig. 4 is the cut-away illustration of the sampler barrel recovery state in the present invention.
In above-mentioned figure: 1-top cylinder end cap, 2-upper end sealing pad, 3-O type circle and back-up ring A, 4-carries hollow tubular, 5-intermediate support plate, 6-upper rail cylinder, 7-hydraulic pressure threaded line pipe, 8-stop nut, 9-linear bearing, 11-O type circle, 12-top cylinder cylindrical shell, 13-top cylinder ring flange, 14-screw and packing ring B, 15-doffing upper flanges, 16-doffing cylindrical shell, 17-axle, 18-O type circle and back-up ring B, end flanges under 19-doffing, 21-doffing end cap, 22-lower guideway cylinder, 23-bullet clamp terminal pad, 24-sampler barrel, 25-piston sealing pad, 26-overlying water retaining valve, 27-piston, 28-secondary sample retaining valve, 29-piston upper end sealing pad, the straight spring of 30-, 32-circumference stop screw, 33-renovates external cable, 34-renovates, screw is drawn outside 35-renovates, 36-renovates O type circle, 37-renovates cylinder, 38-renovates bearing, 39-U type bolt, 40-split pin, 41-torsion spring, the left bullet clamp of 42-, 43-hydraulic pressure threaded line pipe web member, the right bullet clamp of 44-, 45-spring column pin, 46-bullet clamp spring.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, content of the present invention is described in detail.
Embodiment 1: a kind of marine bottom sediment fidelity secondary sample equipment of the present invention, its structure as shown in Figure 1, comprises top cylinder assembly, doffing assembly, piston assembly, renovates assembly, intermediate support plate 5 and upper rail cylinder 6, lower guideway cylinder 22, linear bearing 9 with carry hollow tubular 4.
Described top cylinder assembly comprises top cylinder end cap 1, upper end sealing pad 2, top cylinder cylindrical shell 12, top cylinder ring flange 13 and O type circle and back-up ring A 3; Described top cylinder cylindrical shell 12 is connected by screw with top cylinder end cap 1; Sealed by O type circle and back-up ring A 3 between top cylinder cylindrical shell 12 and upper end sealing pad 2, top cylinder cylindrical shell 12 and both top cylinder ring flanges 13 are welded to connect; Top cylinder ring flange 13 lower end section of flange there is annular grooving, O type circle is housed in annular grooving; Top cylinder assembly is connected by screw 14 with the doffing upper flanges 15 of doffing assembly by the top cylinder ring flange 13 of its lower end; Intermediate support plate 5 is installed between top cylinder assembly and doffing assembly, upper rail cylinder 6 is installed between intermediate support plate 5 and upper end sealing pad 2.
Described doffing assembly comprises end flanges 19, doffing end cap 21 under doffing cylindrical shell 16, doffing upper flanges 15, doffing; Upper end and the doffing upper flanges 15 of described doffing cylindrical shell 16 are welded to connect, and under the lower end of doffing cylindrical shell 16 and doffing, end flanges 19 is welded to connect; Described doffing end cap 21 screw to be connected under doffing in end flanges 19.
Described assembly of renovating is arranged in doffing assembly, see Fig. 1,2, described renovate assembly contain renovate 34, renovate external cable 33, renovate draw screw 35 outward, renovate O type circle 36, renovate cylinder 37, renovate bearing 38, U-bolt 39, split pin 40 and torsion spring 41; Described renovate 34 outside be provided with and renovate external cable 33, screw 35 is drawn to be connected outside renovating the external cable other end and renovating, screw is drawn to be arranged on doffing cylindrical shell 16 outer wall outside renovating, renovate and outside cylinder, to draw screw 35 and doffing cylindrical shell 16 outer wall to be threaded engagement, renovate to draw between the optical axis section of its front end of screw 35 and doffing cylindrical shell 16 outside cylinder and adopt O type circle to seal; Renovate on 34 and have annular grooving, grooving is provided with and renovates O type circle 36, renovating 34 with renovating between bearing 38 is connected with U-bolt 39; The end of described U-bolt 39 is provided with split pin 40, and torsion spring 41 installed by U-bolt 39; Described bearing 38 of renovating is screwed and is renovating on cylinder 37; Seal with O type circle and back-up ring B 18 between the described doffing cylindrical shell 16 renovating cylinder 37 and doffing assembly, and be connected with doffing end cap 21 with circumferential stop screw 32.
Described piston assembly is arranged in doffing assembly, see Fig. 1,3, described piston assembly contains piston 27, piston sealing pad 25, overlying water retaining valve 26, straight spring 30, piston upper end sealing pad 29, secondary sample retaining valve 28, hydraulic pressure threaded line pipe web member 43, plays clamp terminal pad 23; Lower end and the piston sealing pad 25 of described piston 27 are connected by screw, described overlying water retaining valve 26 and the cone match of piston sealing pad 25, the straight hole of piston 27 lower end is provided with straight spring 30, straight spring housing is on overlying water retaining valve 26, overlying water retaining valve is interacted by straight spring and piston 27, and when overlying water retaining valve moves upward, valve port is opened; Described piston upper end sealing pad 29 with between piston 27 by being threaded, have a conical surface opening in the middle of it, and coordinate with secondary sample retaining valve 28; The lower end cover of described secondary sample retaining valve has straight spring, and straight spring fitting is in the upper end perforate of piston 27, and when secondary sample retaining valve moves downward, valve port is opened.Described hydraulic pressure threaded line pipe web member 43 is connected with screw with between piston upper end sealing pad 29, and its lower surface has ring groove, and ring groove is built with O type circle, and its upper end is connected with hydraulic pressure threaded line pipe 7 by middle threaded hole; Described bullet clamp terminal pad 23 is arranged on the top of hydraulic pressure threaded line pipe web member 43 by screw, play and clamp terminal pad 23 has in four pairs of perforates, the perforate of two pairs, upper end is provided with two spring column pins 45, spring column pin is embedded in two flutings of axle 17, and two pairs of perforates of lower end install two to left bullet clamp 42 and right bullet clamp 44 with screw and plain washer respectively; The upper end of piston assembly is connected with axle 17 by spring pin 45, and the lower end of piston assembly is connected with sampler barrel 24 by piston sealing pad 25.
Described linear bearing 9 is arranged on top cylinder end cap 1, linear bearing 9 with carry hollow tubular 4 and coordinate, the internal sleeve carrying hollow tubular 4 hydraulic pressure threaded line pipe 7, the upper end carrying hollow tubular 4 is provided with stop nut 8, carry hollow tubular 4 lower end and axle 17 is threaded connection, hydraulic pressure threaded line pipe 7 and piston assembly are connected by screw.
Top cylinder cylindrical shell 12 of the present invention is inner, doffing cylindrical shell 16 is inner and upper rail cylinder 6 coats insulation material, and each connecting portion employs the sealing of O type circle, guarantees heat-insulation pressure keeping effect.
Doffing end cap 21 of the present invention and renovate between assembly and define an annular cylindrical space, in sampling process, two are just stuck in this annular cylindrical space to left bullet clamp 42 and right bullet clamp 44, left and right bullet clamp is played clamp spring 46 and is strutted to both sides, two pairs of left bullet clamps 42 contact with the lower end plane renovating cylinder 37 with the upper transverse plane of right bullet clamp 44, stop sampler barrel in sampling process to move upward, namely guarantee that in sampling process, sampler barrel 24 can not move upward because of sampling resistance.
Hollow tubular 4 upper end of carrying of the present invention is provided with stop nut 8 by screw thread, carry hollow tubular 4 to move up and down in linear bearing 9, carry hollow tubular 4 lower end to use with axle 17 and be threaded, during sampling when left bullet clamp 42 and right bullet clamp 44 are in annular cylindrical space, stop nut 8 contacts with linear bearing 9 just, make to carry hollow tubular 4 and arrive the extreme position moved downward, guarantee that sampler barrel can not depart from because of sedimental viscosity and gravity and sampling equipment in the process reclaiming sampler barrel 24.
Of the present invention renovating in assembly is renovated 34 and is continued to be in the state that will close under the effect of torsion spring 41, renovate total performance can automatically close when sampler barrel 24 is incorporated in upper rail cylinder 6 completely, outward winding after sampler barrel reclaims outside renovating and draw screw 35, just can pull out and renovate 34 and make it to open by renovating external cable, thus take out sample.
Axle 17 of the present invention is connected by spring column pin 45 with between piston assembly and has certain relative displacement, when sampling, left bullet clamp 42 and right bullet clamp 44 are in annulus, relative displacement now between axle 17 and piston assembly is zero, two of being arranged in axle 17 play clamp spring 46 and strut two left bullet clamp 42 and right bullet clamp 44, to ensure that sampler barrel 24 can not move upward in sampling process, carry hollow tubular 4 after sampling is completed and upwards pull axle 17, there is relative displacement in axle 17 and piston 27, play clamp spring 46 to middle shrinkage, and left bullet clamp 42 and right bullet clamp 44 are pulled to centre, it is made to depart from annular cylindrical space, thus sampler barrel 24 can be taken in upper rail cylinder 6 smoothly.
Piston assembly of the present invention is in the sedimental process of sampler barrel 24 injection, and the seawater of sampler barrel 24 upper end makes the overlying water one-way valve opens in the overlying water retaining valve 26 in piston assembly, and discharges sampler barrel by overlying water drainage channel; Be recovered to by sampler barrel 24 in the process of upper rail cylinder 6, described overlying water retaining valve turns off, and makes sampler barrel 24 upper end airtight, forms negative pressure, prevent sample from dropping when the sediment sample of sampler barrel 24 inside will drop.
Sampler barrel 24 of the present invention is that transparent polycarbonate pipe is made, if find that when sampling operation sampling rate is too low undesirable, high pressure sea water can be inputted from hydraulic pressure threaded line pipe 7, high pressure sea water forces the secondary sample retaining valve 28 in piston assembly to be opened, and enter in sampler barrel 24 by water under high pressure passage, thus go out sampler barrel 24, sub-sampling again after being shifted by equipment by not meeting the sample wash that sampling rate requires, thus achieve the function of secondary sample.
Marine bottom sediment fidelity secondary sample equipment of the present invention, its course of work is:
(1). before work, as shown in Figure 1: stop nut 8 contacts with linear bearing 9, at this moment carry hollow tubular 4 and arrive with piston assembly and axle 17 extreme position moved downward, the doffing end cap 21 that two pairs of left bullet clamps 42 and right bullet clamp 44 are in doffing assembly with renovate in annulus that cylinder 37 formed, and strut to both sides under the effect playing clamp spring 46, make two to contact with the lower plane renovating cylinder 37 to the upper plane of left bullet clamp 42 and right bullet clamp 44; In addition, renovate 34 under the effect of torsion spring 41 with carry the wall contacts of hollow tubular 4, have the trend of closing and renovating assembly 4.
(2). during sampling, in sampler barrel 24 injection sediment, sediment enters sampler barrel, and force overlying water to the upper direction of sampler barrel, cause the pressure increase in sampler barrel 24 pipe, thus the overlying water retaining valve 26 in piston assembly is opened, overlying water discharges sampler barrel 24 by drainage channel, make sediment enter sampler barrel smoothly, thus collect sample smoothly.
(3). when reclaiming sampler barrel, upwards pull and carry hollow tubular 4, axle 17 and piston assembly is made to produce relative displacement, force and play clamp spring 46 to middle shrinkage, left bullet clamp 42 and right bullet clamp 44 is pulled to rotate, with renovate cylinder 37 lower plane and disengage, thus it is inner successfully sampler barrel 24 to be drawn in upper rail cylinder 6, and the state that sampler barrel 24 is regained completely is as shown in Figure 4.
(4). when the sample that discovery obtains is undesirable or sampling rate is undesirable, secondary sample operation can be carried out, concrete enforcement is: in hydraulic pressure threaded line pipe 7, pour into high pressure sea water, seawater via hydraulic pressure threaded line pipe 7 to the hydraulic pressure threaded line pipe web member 43 in piston assembly, secondary sample retaining valve 28 is forced to be opened, high pressure sea water is by secondary sample retaining valve, and enter in sampler barrel 24 via drainage channel, undesirable sample is washed out, second time sampling after being shifted by equipment, can be re-started.
Marine bottom sediment fidelity secondary sample compact equipment of the present invention, sampling rate is high, fidelity is respond well, also saves sample time and sampling cost simultaneously; The present invention is applicable to the fidelity sampling of mud sample in marine bottom sediment, gas hydrate, rivers and lakes.
Claims (6)
1. a marine bottom sediment fidelity secondary sample equipment, comprises top cylinder assembly, doffing assembly, and piston assembly, renovates assembly, intermediate support plate and upper and lower lead rail cylinder, linear bearing with carry hollow tubular; It is characterized in that:
Described top cylinder assembly comprises top cylinder end cap, upper end sealing pad, top cylinder cylindrical shell, top cylinder ring flange and O type circle and back-up ring A; Described top cylinder cylindrical shell and top cylinder end cap are connected by screw; Sealed by O type circle and back-up ring A between top cylinder cylindrical shell and upper end sealing pad, top cylinder cylindrical shell and top cylinder ring flange are welded to connect; Top cylinder ring flange lower end section of flange there is annular grooving, O type circle is housed in annular grooving; Top cylinder assembly is connected by screw by the top cylinder ring flange of its lower end and the doffing upper flanges of doffing assembly; Between top cylinder assembly and doffing assembly, intermediate support plate is installed, upper rail cylinder is installed between intermediate support plate and upper end sealing pad;
Described doffing assembly comprises end flanges, doffing end cap under doffing cylindrical shell, doffing upper flanges, doffing; Upper end and the doffing upper flanges of described doffing cylindrical shell are welded to connect, and the lower end of doffing cylindrical shell is connected with doffing lower end flange welding; Described doffing end cover screw to be connected under doffing in end flanges;
Described assembly of renovating is arranged in doffing assembly, described renovate assembly contain renovate, renovate external cable, renovate draw screw outward, renovate O type circle, renovate cylinder, renovate bearing, U-bolt, split pin and torsion spring; Described outside of renovating is provided with and renovates external cable, renovates the external cable other end and renovates and draw screw to be connected outward, renovate and draw screw to be arranged on doffing cylinder body outer wall outward, renovate outside cylinder and draw screw and doffing cylinder body outer wall to be threaded engagement; Renovate annular grooving, grooving has been provided with and renovates O type circle, renovated and be connected with U-bolt with renovating between bearing; The end of described U-bolt is provided with split pin, U-bolt has been installed torsion spring; Described bearing of renovating is screwed and is renovating on cylinder; Seal with O type circle and back-up ring B between the described cylindrical shell renovating cylinder and doffing assembly, and be connected with doffing end cap with circumferential stop screw;
Described piston assembly is arranged in doffing assembly, and described piston assembly contains piston, piston sealing pad, overlying water retaining valve, straight spring, piston upper end sealing pad, secondary sample retaining valve, hydraulic pressure threaded line pipe web member, plays clamp terminal pad; Lower end and the piston sealing pad of described piston are connected by screw, and described overlying water retaining valve and the cone match of piston sealing pad, the straight hole of piston is provided with straight spring; Overlying water retaining valve is interacted by straight spring and piston, and when overlying water retaining valve moves upward, valve port is opened; Described piston upper end sealing pad with between piston by being threaded, have a conical surface opening in the middle of it, and coordinate with secondary sample retaining valve; The lower end cover of described secondary sample retaining valve has straight spring, and straight spring fitting is in the upper end perforate of piston, and when secondary sample retaining valve moves downward, valve port is opened; Described hydraulic pressure threaded line pipe web member is connected with screw with between sealing pad on piston, and its lower surface has ring groove, and ring groove is built with O type circle, and its upper end is connected with hydraulic pressure threaded line pipe by middle threaded hole; Described bullet clamp terminal pad is arranged on the top of hydraulic pressure threaded line pipe web member by screw, play on clamp terminal pad and have four pairs of perforates, wherein two couple of upper end is for being provided with spring column pin, spring column pin is embedded in two flutings of axle, and two pairs of perforates of lower end install two to bullet clamp with screw and plain washer respectively; The upper end of piston assembly is connected with axle by spring pin, and the lower end of piston assembly is connected with sampler barrel by piston sealing pad;
Described linear bearing is arranged on upper cylinder end and covers, linear bearing with carry hollow tubular and coordinate, the internal sleeve carrying hollow tubular hydraulic pressure threaded line pipe, carry on hollow tubular and stop nut is installed, carry hollow tubular lower end and axle is threaded connection, hydraulic pressure threaded line pipe and piston assembly are connected by screw;
Described sampler barrel is that transparent polycarbonate pipe is made, find that when sampling operation sampling rate is too low, then from hydraulic pressure threaded line pipe input high pressure sea water, high pressure sea water to the hydraulic pressure threaded line pipe web member in piston assembly, forces the secondary sample one-way valve opens of piston assembly via hydraulic pressure threaded line pipe, water under high pressure is by secondary sample retaining valve, and enter in sampler barrel via drainage channel, undesirable sample is discharged sampler barrel, equipment is shifted, sub-sampling again, realizes secondary sample.
2. a kind of marine bottom sediment fidelity secondary sample equipment according to claim 1, it is characterized in that: described top cylinder cylindrical shell, doffing inner barrel, upper rail cylinder internal spray insulation material, and each connecting portion all employs the sealing of O type circle, comprise between linear bearing and upper end sealing pad, renovate outer drawing between screw and lower drum outer wall, guarantee heat-insulation pressure keeping effect.
3. a kind of marine bottom sediment fidelity secondary sample equipment according to claim 1, it is characterized in that: the end cap of described doffing assembly and renovate between assembly and define an annular cylindrical space, in sampling process, two are just stuck in described annular cylindrical space to left and right bullet clamp, left and right bullet clamp is played clamp spring and is strutted to both sides, the upper transverse plane of left and right bullet clamp contacts with the lower end plane renovating cylinder, stops sampler barrel in sampling process to move upward.
4. a kind of marine bottom sediment fidelity secondary sample equipment according to claim 1, it is characterized in that: described carrying on hollow tubular is provided with stop nut, in sampling process, carry hollow tubular to move up and down in linear bearing, when two are in annular cylindrical space to left and right bullet clamp, stop nut contacts with linear bearing just, makes to carry hollow tubular and arrives the extreme position moved downward, and guarantees that sampler barrel does not depart from sampling equipment in the process reclaiming sampler barrel.
5. a kind of marine bottom sediment fidelity secondary sample equipment according to claim 1, it is characterized in that: described renovating continues to be in the state that will close under the effect of torsion spring, renovate assembly when sampler barrel is incorporated in upper rail cylinder completely automatically to close, outward winding to renovate after sampler reclaims and outer draw screw, pull and renovate external cable and make to renovate and open taking-up sample.
6. a kind of marine bottom sediment fidelity secondary sample equipment according to claim 1, it is characterized in that: in the described sedimental process of sampler barrel injection, the seawater of sampler barrel upper end makes the overlying water one-way valve opens in piston assembly, and seawater discharges sampler barrel by overlying water drainage channel; At recovery sampler barrel in the process of upper rail cylinder, overlying water retaining valve turns off, and makes the airtight formation negative pressure in sampler barrel upper end, prevents from dropping at the sediment sample of sampler barrel inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310205050.9A CN103267657B (en) | 2013-05-28 | 2013-05-28 | Fidelity secondary sampling equipment for bottom sediments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310205050.9A CN103267657B (en) | 2013-05-28 | 2013-05-28 | Fidelity secondary sampling equipment for bottom sediments |
Publications (2)
| Publication Number | Publication Date |
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| CN103267657A CN103267657A (en) | 2013-08-28 |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1081463A1 (en) * | 1983-01-28 | 1984-03-23 | Южное производственное объединение по морским геологоразведочным работам "Южморгеология" | Bottom deposit sampler |
| CN2075899U (en) * | 1990-05-08 | 1991-05-01 | 谌桂生 | Portable folding table (stool) capable of rising and falling |
| CN1420348A (en) * | 2002-12-12 | 2003-05-28 | 浙江大学 | Deep sea deposit fidelity sampling system |
| CN1483369A (en) * | 2002-09-18 | 2004-03-24 | 政泰洋伞有限公司 | Automatic open/close foldable umbrella |
| CN1616944A (en) * | 2004-12-01 | 2005-05-18 | 浙江大学 | Fidelity sampling integrated deep sea sediment sampler |
| CN1789952A (en) * | 2005-12-09 | 2006-06-21 | 中国海洋石油总公司 | Hydraulic driven in-situ air-keeping sampler for seabed sediment |
| CN201397257Y (en) * | 2009-05-14 | 2010-02-03 | 杭州电子科技大学 | Sediment pressure maintaining sampler |
| CN101798924A (en) * | 2010-03-25 | 2010-08-11 | 吉林大学 | Icebound type pressure-maintaining and temperature-preserving sampler |
| CN202869850U (en) * | 2012-09-17 | 2013-04-10 | 上海海洋大学 | Electric control closed water sampler |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09243529A (en) * | 1996-03-05 | 1997-09-19 | Y B M Hanbai Kk | Sample-collecting method |
-
2013
- 2013-05-28 CN CN201310205050.9A patent/CN103267657B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1081463A1 (en) * | 1983-01-28 | 1984-03-23 | Южное производственное объединение по морским геологоразведочным работам "Южморгеология" | Bottom deposit sampler |
| CN2075899U (en) * | 1990-05-08 | 1991-05-01 | 谌桂生 | Portable folding table (stool) capable of rising and falling |
| CN1483369A (en) * | 2002-09-18 | 2004-03-24 | 政泰洋伞有限公司 | Automatic open/close foldable umbrella |
| CN1420348A (en) * | 2002-12-12 | 2003-05-28 | 浙江大学 | Deep sea deposit fidelity sampling system |
| CN1616944A (en) * | 2004-12-01 | 2005-05-18 | 浙江大学 | Fidelity sampling integrated deep sea sediment sampler |
| CN1789952A (en) * | 2005-12-09 | 2006-06-21 | 中国海洋石油总公司 | Hydraulic driven in-situ air-keeping sampler for seabed sediment |
| CN201397257Y (en) * | 2009-05-14 | 2010-02-03 | 杭州电子科技大学 | Sediment pressure maintaining sampler |
| CN101798924A (en) * | 2010-03-25 | 2010-08-11 | 吉林大学 | Icebound type pressure-maintaining and temperature-preserving sampler |
| CN202869850U (en) * | 2012-09-17 | 2013-04-10 | 上海海洋大学 | Electric control closed water sampler |
Non-Patent Citations (2)
| Title |
|---|
| JP特開平9-243529A 1997.09.19 * |
| 深海沉积物无扰动保压取样技术的研究;李峰;《万方学位论文数据库》;20090430;28-41 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2797840C1 (en) * | 2022-12-26 | 2023-06-08 | Федеральное государственное бюджетное учреждение науки Институт экологии растений и животных Уральского отделения Российской академии наук | Sampling device |
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