CN104596797A - Field sampling device for searching sediment suspension - Google Patents
Field sampling device for searching sediment suspension Download PDFInfo
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- CN104596797A CN104596797A CN201510007003.2A CN201510007003A CN104596797A CN 104596797 A CN104596797 A CN 104596797A CN 201510007003 A CN201510007003 A CN 201510007003A CN 104596797 A CN104596797 A CN 104596797A
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Abstract
The invention discloses a field sampling device for searching sediment suspension. The device comprises a water inlet box, a water outlet box, a hard water pipe, an electric stirrer, a sediment collecting device and a curved sampling pipe, wherein the water inlet box, the hard water pipe and the water outlet box are hermetically connected through a square connecting round pipe; the sediment collecting device is fixedly arranged in the water outlet box; sampling holes are formed in the wall of the box; and the curved sampling pipe is fixedly formed out of each of the sampling holes by virtue of a fixing device. The invention provides the field sampling device for searching sediment suspension. Hydrodynamic conditions at different strengths are generated by adjusting the electric stirrer, sediment under disturbance of a hydrodynamic force suspends, and the rectangular water tank and the hard water tank are maintained on a same horizontal line by virtue of a scaleplate and an iron supporting column, so that the stability of the water flow direction is guaranteed; before a water sample is collected, a rubber check valve seals the sampling holes on two sides of the rectangular water outlet box; the curved sampling tube is inserted into each sampling hole so as to accurately collect the water sample at a certain height in the water tank.
Description
Technical field
The present invention relates to shallow lake and river system water ecological setting analogue technique field, cistern device simulation river and lake bed mud under the disturbance of different hydrodynamic intensity is particularly utilized to play outstanding mechanism, and collect the device that bed mud plays outstanding silt, and curved sampling pipe is utilized to carry out the water sampling of precise height.
Background technology
Lake is being subject in outside contamination situation, a part is cleared up by self self purification, remainder then forms basic sediment by sedimentation, sediment reenters water body being subject in outer force-disturbance (as wave, lake current) situation that settling flux easily occurs, and then again brought in water body by the pollutant in sediment, thus affect water quality.
In addition, under hydrodynamism, lake or river drift easily corrode, settling flux, this process can cause the release of surface deposit nutritive salt, the change etc. of biomass, the definition of bed mud surface erosion rate is the bed mud erosion amount of unit area bottom within the unit interval, riverbed shearing stress is the important parameter in Cohesive Sediment research, it directly determines the degree of depth that bed mud is etched, but, determine riverbed shearing stress, it is very difficult for controlling external force condition, at present, the lab simulation of simulating bed mud corrodes mainly contains concussion method, wave flume method and annular water tank method, concussion method is in triangular flask, load a certain amount of S & W sample, to shake frequency analog hydrodynamic force size, the method is simply easy to controlled condition and can organizes parallel more, but volume is too small, well can not describe bed mud and corrode the trend increased progressively with stormy waves enhancing, wave flume and annular water tank method are that the directed flow adopting mechanical means to produce overlying water makes bed mud suspend, method is easy to controlled condition, but the original state of experiment bed mud is subject to certain destruction, more shallow overlying water and lake actual conditions differ greatly.Keep sedimental original state extremely important, it is not only related to the result of the variable effect settling flux of interface and the structure thereof being exposed to overlying water, and also produces vital impact to the burst size of nutriment.In bed mud erosion experiment, choosing and designing of device is most important, produces material impact to result, and the design of historical facts or anecdotes experiment device should can reflect actual conditions as far as possible.
The experiment of corroding due to bed mud is simulated in indoor mostly, relatively outdoor experimental simulation lacks authenticity, the mud spline structure that such as lab simulation bed mud corrodes is destroyed mostly when taking back laboratory, differ greatly with true sediment structure, thus a kind of device is needed, this device can be tested outward by simulating chamber, ensures sediment structure completely not by any destruction, also presents water body feature former state completely simultaneously.
Summary of the invention
The object of the invention is to for the deficiencies in the prior art, provide a kind of field sampling device studied bed mud and suspend, it is uncontrollable that this device overcomes external force in prior art, maintain bed mud original state structure more difficult, inconvenience gathers water sample, lacks the problems such as understanding bed mud being played to outstanding rear silt composition.
The present invention is achieved through the following technical solutions: a kind of field sampling device studied bed mud and suspend of the present invention, it is characterized in that, comprise inlet water tank, water tank, on the left of described water tank casing and bottom does not arrange boxboard, directly communicate with the external world, described inlet water tank and hard water pipe connect pipe by first party and are tightly connected, described hard water pipe connects pipe by second party and water tank is tightly connected, before and after described water tank, side is provided with draw-in groove, silt gathering-device is fixed in described water tank by described draw-in groove, described water tank both sides are provided with thieff hatch, sampling pipe is fixed on outside described thieff hatch by stationary installation, described thieff hatch is provided with rubber backflow preventing mouth plug.
When this device is sampled, the rubber backflow preventing mouth plug be connected with described thieff hatch is Natural closure shape, when starting to sample, described sampling pipe can insert thieff hatch and carry out water sampling, rubber backflow preventing mouth plug is stressed inwardly to be opened, when taking out described sampling pipe, described rubber backflow preventing mouth plug outwards closes automatically, prevents extraneous water body from flowing backwards and enters water tank inside.
Described water tank is provided with four first irony spike posts, described in every root, the first irony spike post is all fixed with the first hard scale, described inlet water tank is provided with a second irony spike post, described second irony spike post is fixed with the second hard scale, described first hard scale and the second hard scale are all followed closely on described first irony spike post and the second irony spike post by rivet respectively, described first irony spike post and the second irony spike post control to insert the bed mud degree of depth by telescopic adjustment height, , identical graduation is kept by regulating the second hard scale 25 and the first hard scale 9, make water tank, second party connects pipe, hard water pipe, first party connects pipe, inlet water tank in the same horizontal line, ensure that the stability of water (flow) direction.
Described stationary installation comprises rubber retainer plate and bracing frame, and described sampling pipe four is one group, and described sampling pipe is fixed on outside thieff hatch by rubber retainer plate and bracing frame, and described sampling pipe is curved sampling pipe.
Described hard water pipe upper surface is provided with flow velocity gaging hole, is provided with propeller current meter in described flow velocity gaging hole, accurately measures the water volume flow rate in described hard water pipe.
Described silt gathering-device comprises diaphragm and filter screen, described diaphragm is arranged on water tank Inner Front End, described filter screen is arranged on rear end in water tank, wood diaphragms is provided with between described diaphragm and filter screen, bed load sediment is precipitated by diaphragm, and suspended sediment is caught by filter screen.
Described inlet water tank is provided with electric blender, described electric blender is inserted in water tank by stirring machine jack, described stirring machine jack is arranged at inlet water tank upper surface, realizing current by described electric blender makes bed mud suspend at pipeline and the flowing of inlet water tank interior orientation, collect bed mud with silt gathering-device and work the silt after hanging, by changing electric mixer revolution, under the hydrodynamic condition of varying strength can be compared, bed mud plays outstanding quantity of sand and mud and composition thereof, insert thieff hatch by curved sampling pipe, realize the accurate sampling to certain altitude water body.
Described curved sampling pipe side can by rubber stopper seal, and the opposite side mouth of pipe is shunk and supported by bracing frame and be tightly connected with the rubber backflow preventing mouth plug outside described thieff hatch.
Described water tank, inlet water tank, draw-in groove, wood diaphragms and diaphragm all adopt wood materials, and described first party connects pipe, and hard water pipe and second party connect pipe and all adopt PVC material, and described sampling pipe adopts glass material.
The beneficial effect that the present invention reaches: a kind of setting of field sampling device by electric blender studying bed mud suspension of the present invention, by the hydrodynamic condition regulating electric blender to produce varying strength, make the current producing different size flow velocity in inlet water tank, simultaneously, under hydrodynamic force disturbance, bed mud suspends, sediment structure can be ensured completely not by any destruction, keep sedimental original state; Describedly a kind ofly study field sampling device that bed mud suspends by the setting of propeller type current meter in the access of hard water pipe, can measure water stream flow velocity; Described a kind of field sampling device studying bed mud suspension is fixed with the setting of hard scale by irony spike post, utilize irony spike that rectangular tank can be made to be fixed on lakebed, and flush with bed mud surface bottom maintenance rectangular tank, water tank, inlet water tank and hard water pipe can be made to remain on same horizontal line, ensure that the stable of water (flow) direction; The described a kind of setting of field sampling device by silt gathering-device studying bed mud suspension, utilizes silt gathering-device effectively to collect bed mud and works the silt after hanging, disclose bed mud migration characteristics; The described a kind of setting of field sampling device by rubber backflow preventing mouth plug studying bed mud suspension, before water sampling, rubber backflow preventing mouth plug is utilized to realize sealing to the thieff hatch of water tank both sides, according to siphon and vacuum principle, curved sampling pipe is utilized to insert thieff hatch, can the water sample of certain altitude in precise acquisition water tank.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is water tank structural representation of the present invention.
Fig. 3 is silt gathering-device structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
As shown in Figure 1 to Figure 3, a kind of field sampling device studied bed mud and suspend, it is characterized in that, comprise inlet water tank 5, water tank 1, on the left of described water tank 1 casing and bottom does not arrange boxboard, directly communicate with the external world, described inlet water tank 5, water tank 1 is rectangle, described inlet water tank 5 connects pipe 4 with hard water pipe 3 by first party and is tightly connected, described hard water pipe 3 connects pipe 2 by second party and is tightly connected with water tank 1, described water tank 1 and described second party are connect pipe 2 and are connected by ring flange, described second party is connect pipe 2 and is connected by ring flange with described hard water pipe 3, described hard water pipe 3 and described first party are connect pipe 4 and are connected by ring flange, described first party is connect pipe 4 and is connected by ring flange with described water tank 1, before and after described water tank 1, side is provided with draw-in groove 18, silt gathering-device 8 is fixed in described water tank 1 by described draw-in groove 18, described water tank 1 both sides are provided with thieff hatch 12, sampling pipe is fixed on outside described thieff hatch 12 by stationary installation, described sampling pipe four is one group, described stationary installation comprises rubber retainer plate 16 and bracing frame 14, described sampling pipe is fixed on outside thieff hatch 12 by rubber retainer plate 16 and bracing frame 14, described sampling pipe is curved sampling pipe 15, described thieff hatch 12 is provided with rubber backflow preventing mouth plug 13, when device is sampled, described curved sampling pipe 15 mouth of pipe is shunk side and is supported by bracing frame and be tightly connected with the rubber backflow preventing mouth plug 13 outside described thieff hatch 12, described rubber backflow preventing mouth plug 13 is in Natural closure shape, when starting to sample, described curved sampling pipe 15 inserts thieff hatch 12 and carries out water sampling, rubber backflow preventing mouth plug 13 is stressed inwardly to be opened, described curved sampling pipe 15 can insert rubber backflow preventing mouth plug 13 and carry out water sampling, then close the rubber plug 17 of described curved sampling pipe 15, take out curved sampling pipe 15, when taking out described sampling pipe, described rubber backflow preventing mouth plug 13 is automatically outwards closed, prevent extraneous water body from flowing backwards and enter water tank 1 inside.
Described water tank 1 surrounding is respectively arranged with four first irony spike posts 10, described first irony spike post 10 is separately fixed at water tank 1 main body front and back sides near the position of seamed edge by rivet 11, described first hard scale 9 is fixed on every root first irony spike post 10 by rivet 11, described first irony spike post 10 controls to insert the bed mud degree of depth by telescopic adjustment height, described inlet water tank 5 is provided with a second irony spike post 24 at place of bottom centre, described second hard scale 25 is fixed on described second irony spike post 24, identical graduation is kept by regulating the second hard scale 25 and the first hard scale 9, make water tank, second party connects pipe, hard water pipe, first party connects pipe, inlet water tank in the same horizontal line, ensure that the stability of water (flow) direction.
Described hard water pipe 3 upper surface is provided with flow velocity gaging hole 23, is provided with propeller current meter 7 in described flow velocity gaging hole 23, accurately measures the water volume flow rate in described hard water pipe 3.
Described silt gathering-device 8 comprises diaphragm 21 and filter screen 19, wood diaphragms 20 is provided with between described diaphragm 21 and filter screen 19, described silt gathering-device 8 is that first half section is provided with diaphragm 21 in water tank 1, second half section is provided with filter screen 19, between be provided with wood diaphragms 20, bed load sediment obtains 21 with precipitation by diaphragm, and suspended sediment is caught by filter screen 19.
Described inlet water tank 5 is provided with electric blender 6, described electric blender 6 is inserted in water tank 5 by stirring machine jack 22, described stirring machine jack 22 is arranged at inlet water tank 5 upper surface, realizing current by described electric blender 6 makes bed mud suspend at pipeline and the flowing of inlet water tank 5 interior orientation, collect bed mud with silt gathering-device 8 and work the silt after hanging, by changing stirrer revolution, under the hydrodynamic condition of varying strength can be compared, bed mud plays outstanding quantity of sand and mud and composition thereof, thieff hatch 12 is inserted by curved sampling pipe 15, realize the accurate sampling to certain altitude water body.
Described curved sampling pipe 15 side can seal sampling by rubber plug 17, the opposite side mouth of pipe is shunk and is supported by bracing frame 14 and be tightly connected with the rubber backflow preventing mouth plug 13 outside described thieff hatch 12, described water tank 1, inlet water tank 5, draw-in groove 18, wood diaphragms 20 and diaphragm 21 all adopt wood materials, described first party connects pipe 4, hard water pipe 3 and second party and connects pipe 2 and all adopt PVC material, and described sampling pipe adopts glass material.
Specific operation process of the present invention is as follows: whole device is put into lakebed to be measured or river bed by self gravitation effect aboard ship by experimenter stably, now the first irony spike post 10 and the second irony spike post 24 can insert in soft bed mud, dark according to known lake, water tank 1 highly can calculate the scale of the first hard scale 9 when flushing with mud face bottom water tank 1, water tank 1 surrounding first hard scale 9 is made all to be in identical graduation by the degree of depth regulating the first irony spike post 10 to insert bed mud, ensure that water tank 1 is in level, the second hard scale 25 bottom inlet water tank 5 and the first hard scale 9 is made to keep identical graduation by the degree of depth regulating the second irony spike post 24 to insert bed mud, ensure that water tank 1, second party connects pipe 2, hard water pipe 3, first party connects pipe 4, inlet water tank 5 in the same horizontal line, ensure that the stability of water (flow) direction, electric blender 6 is inserted into water tank 5 by stirring machine jack 22, the rotating speed of electric blender 6 is regulated to make the water body in inlet water tank 5 produce the current of certain flow rate as required, and connect pipe 4 by first party, hard water pipe 3, second party connects pipe 2 steady flow to water tank 1, flow out from water tank 1 opposite side again, flow velocity gaging hole 23 is had at hard water pipe 3 upper surface, propeller current meter 7 is provided with in flow velocity gaging hole 23, accurately record the water velocity flowing into water tank 1, bed mud bottom inlet water tank 5 is disturbed and suspends, play outstanding silt and enter silt gathering-device 8, bed load sediment is precipitated by diaphragm 21, suspended sediment is caught by filter screen 19, the silt gathering-device 8 gathering silt can take out from draw-in groove 18, thus analyze quantity of sand and mud and composition, be sampled point by the thieff hatch 12 on water tank 1, curved sampling pipe 15 is stretched into thieff hatch 12 inner, then close the rubber plug 17 of curved sampling pipe 15, take out curved sampling pipe 15, thus analysis water-like composition.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and distortion, these improve and distortion also should be considered as protection scope of the present invention.
Claims (9)
1. the field sampling device studied bed mud and suspend, it is characterized in that, comprise inlet water tank, water tank, described inlet water tank and hard water pipe connect pipe by first party and are tightly connected, described hard water pipe connects pipe by second party and water tank is tightly connected, before and after described water tank, side is provided with draw-in groove, silt gathering-device is fixed in described water tank by described draw-in groove, described water tank is also provided with thieff hatch, sampling pipe is fixed on outside described thieff hatch by stationary installation, and described thieff hatch is provided with rubber backflow preventing mouth plug.
2. a kind of field sampling device studied bed mud and suspend according to claim 1, it is characterized in that, described water tank is provided with the first irony spike post, described first irony spike post is fixed with the first hard scale, described inlet water tank is provided with the second irony spike post, and described second irony spike post is fixed with the second hard scale.
3. a kind of field sampling device studied bed mud and suspend according to claim 1 and 2, it is characterized in that, described stationary installation comprises rubber retainer plate and bracing frame, and described sampling pipe is fixed on outside thieff hatch by rubber retainer plate and bracing frame.
4. a kind of field sampling device studied bed mud and suspend according to claim 1, it is characterized in that, described sampling pipe is curved sampling pipe.
5. a kind of field sampling device studied bed mud and suspend according to claim 1, it is characterized in that, described hard water pipe upper surface is provided with flow velocity gaging hole, is provided with propeller current meter in described flow velocity gaging hole.
6. a kind of field sampling device studied bed mud and suspend according to claim 1, it is characterized in that, described silt gathering-device comprises diaphragm and filter screen, is provided with wood diaphragms between described diaphragm and filter screen.
7. a kind of field sampling device studied bed mud and suspend according to claim 1, it is characterized in that, described inlet water tank is provided with electric blender, and described electric blender is inserted in water tank by stirring machine jack, and described stirring machine jack is arranged at inlet water tank upper surface.
8. a kind of field sampling device studied bed mud and suspend according to claim 1, it is characterized in that, described curved sampling pipe is provided with rubber stopper seal.
9. a kind of field sampling device studied bed mud and suspend according to the arbitrary claim of claim 1-8, it is characterized in that, described water tank, inlet water tank, draw-in groove, wood diaphragms and diaphragm all adopt wood materials, described first party connects pipe, hard water pipe and second party connect pipe and all adopt PVC material, and described sampling pipe adopts glass material.
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| CN201510007003.2A CN104596797A (en) | 2015-01-07 | 2015-01-07 | Field sampling device for searching sediment suspension |
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| CN201510007003.2A CN104596797A (en) | 2015-01-07 | 2015-01-07 | Field sampling device for searching sediment suspension |
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| CN106248905A (en) * | 2016-07-08 | 2016-12-21 | 河海大学 | A kind of experimental system monitoring pollutant release in peb process bed mud and experimental technique thereof |
| CN106404587A (en) * | 2016-09-05 | 2017-02-15 | 安徽省环境科学研究院 | Water sample silt measuring instrument |
| CN107185302A (en) * | 2017-07-12 | 2017-09-22 | 安徽省环境科学研究院 | A kind of river particulate flows settler |
| CN107367402A (en) * | 2017-08-24 | 2017-11-21 | 北京中科乾和环保科技服务有限公司 | A kind of river suspended particulate substance collector |
| CN108287069A (en) * | 2018-03-19 | 2018-07-17 | 华电电力科学研究院有限公司 | One kind surveying the fixed attachment device of mouth and connection method for backing tube and experiment |
| CN109490015A (en) * | 2018-11-02 | 2019-03-19 | 河海大学 | It is a kind of for preventing the bed-sit sampler of turbulent water in high-velocity flow environment |
| CN110261186A (en) * | 2019-07-19 | 2019-09-20 | 中国地质科学院岩溶地质研究所 | A kind of karst subterranean stream water sample sampling device and the method for sampling |
| CN111595619A (en) * | 2020-04-22 | 2020-08-28 | 华北水利水电大学 | Portable suspended load sediment sampler |
| CN113640054A (en) * | 2021-07-28 | 2021-11-12 | 长三角(义乌)生态环境研究中心 | Sediment collection device |
| CN114486651A (en) * | 2022-01-05 | 2022-05-13 | 南通大学 | Device for measuring in-situ bottom mud resuspension rate |
| CN117147234A (en) * | 2023-11-01 | 2023-12-01 | 北京建工环境修复股份有限公司 | Stable sampling device for water pollution treatment |
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| CN106248905B (en) * | 2016-07-08 | 2018-06-19 | 河海大学 | It is a kind of to monitor the experimental system and its experimental method that pollutant discharges in peb process bed mud |
| CN106248905A (en) * | 2016-07-08 | 2016-12-21 | 河海大学 | A kind of experimental system monitoring pollutant release in peb process bed mud and experimental technique thereof |
| CN106404587B (en) * | 2016-09-05 | 2019-11-26 | 安徽省环境科学研究院 | A kind of water sample silt measuring instrument |
| CN106404587A (en) * | 2016-09-05 | 2017-02-15 | 安徽省环境科学研究院 | Water sample silt measuring instrument |
| CN107185302A (en) * | 2017-07-12 | 2017-09-22 | 安徽省环境科学研究院 | A kind of river particulate flows settler |
| CN107367402B (en) * | 2017-08-24 | 2020-03-27 | 北京中科乾和环保科技服务有限公司 | River suspended particulate matter collector |
| CN107367402A (en) * | 2017-08-24 | 2017-11-21 | 北京中科乾和环保科技服务有限公司 | A kind of river suspended particulate substance collector |
| CN108287069A (en) * | 2018-03-19 | 2018-07-17 | 华电电力科学研究院有限公司 | One kind surveying the fixed attachment device of mouth and connection method for backing tube and experiment |
| CN108287069B (en) * | 2018-03-19 | 2023-06-20 | 华电电力科学研究院有限公司 | Connecting device and connecting method for fixing backrest tube and test port |
| CN109490015A (en) * | 2018-11-02 | 2019-03-19 | 河海大学 | It is a kind of for preventing the bed-sit sampler of turbulent water in high-velocity flow environment |
| CN110261186A (en) * | 2019-07-19 | 2019-09-20 | 中国地质科学院岩溶地质研究所 | A kind of karst subterranean stream water sample sampling device and the method for sampling |
| CN111595619A (en) * | 2020-04-22 | 2020-08-28 | 华北水利水电大学 | Portable suspended load sediment sampler |
| CN111595619B (en) * | 2020-04-22 | 2023-06-02 | 华北水利水电大学 | Portable suspended solid sediment sampler |
| CN113640054A (en) * | 2021-07-28 | 2021-11-12 | 长三角(义乌)生态环境研究中心 | Sediment collection device |
| CN114486651A (en) * | 2022-01-05 | 2022-05-13 | 南通大学 | Device for measuring in-situ bottom mud resuspension rate |
| CN117147234A (en) * | 2023-11-01 | 2023-12-01 | 北京建工环境修复股份有限公司 | Stable sampling device for water pollution treatment |
| CN117147234B (en) * | 2023-11-01 | 2024-01-05 | 北京建工环境修复股份有限公司 | Stable sampling device for water pollution treatment |
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