CN103383316A - Water sample gatherer and water quality detection system - Google Patents
Water sample gatherer and water quality detection system Download PDFInfo
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- CN103383316A CN103383316A CN2012101345912A CN201210134591A CN103383316A CN 103383316 A CN103383316 A CN 103383316A CN 2012101345912 A CN2012101345912 A CN 2012101345912A CN 201210134591 A CN201210134591 A CN 201210134591A CN 103383316 A CN103383316 A CN 103383316A
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Abstract
本发明提供了一种水样采集器与水质检测系统，水样采集器包括顺序连接的集水器、引水管、导流管、储水罐；水质检测系统包括水样采集器和放置在水样采集器的储水罐内的水质检测探头。本发明的装置结构简单、安装操作简便，无需外加动力，能够将水面以下的水样采集到水面之上，进行水质监测。本发明的水样采集器与水质检测系统适合于野外环境使用，尤其适合于高速移动或者高速水流条件下使用。本发明的装置可实现快速、准确、连续地自动收集水体表层固定水深处的水样，同时对采样位置处的水质指标进行准确的无人值守在线同步测定，水样的水质分析准确，能够真实反应水体中水质分布状况。
The invention provides a water sample collector and a water quality detection system. The water sample collector includes a sequentially connected water collector, a water diversion pipe, a diversion pipe, and a water storage tank; the water quality detection system includes a water sample collector and a The water quality detection probe in the water storage tank of the sample collector. The device of the invention has the advantages of simple structure, easy installation and operation, without external power, and can collect water samples below the water surface to above the water surface for water quality monitoring. The water sample collector and water quality detection system of the present invention are suitable for use in field environments, especially for use under high-speed movement or high-speed water flow conditions. The device of the present invention can realize rapid, accurate and continuous automatic collection of water samples at a fixed water depth on the surface of the water body, and at the same time carry out accurate unattended online synchronous measurement of the water quality index at the sampling position, and the water quality analysis of the water samples is accurate and can be real It reflects the distribution of water quality in the water body.
Description
Technical field
The present invention relates to water sample acquisition device and water quality detecting device, particularly a kind of continuously, automatic water sampler with continuously, real-time water quality measuring system.
Background technology
In scientific research and management work aspect water environment protection, to the collection of the representative water sample of water body be one of very important basic work to the mensuration of water-quality guideline.In order to grasp the regularity of distribution of water-quality guideline in water body, need to a plurality of positions of water body and fixedly the depth of water carry out the continuous acquisition of water sample and the on-line synchronous of water-quality guideline is measured.
at present numerous to the research of water sampling and determinator, and developed multiple business sampling thief, can carry out stratified sampling to the water sample that difference requires, but existing water sample acquisition device and water analysis equipment or can only carry out artificial grab sampling, be discontinuous sampling and water analysis outfit, can not carry out the continuous acquisition water sample, can not be continuous, the water sample water quality that collects is measured and analyzed to real-time online, can not measure uninterruptedly the water quality of the same degree of depth, during sampling, the degree of depth of water sample is unstable, the water sample and the water analysis that gather are inaccurate, in can not the actual response water body, water quality distributes.
The patent No. a kind of lake demixing water sampling instrument that has been 200810056758.1 disclosure of the invention for example, this water sampling device, comprise sampling bottle and traction rope, support the fixed mount of sampling bottle, the support of Connection Bracket, be arranged on support the packoff that also can move up and down along support, be used for the sealing sampling bottle, traction rope is fixedly connected with support, and the end of support is provided with counterweight.Although this water sampling device guarantees not cause in sampling process significant dissolved gas loss, takes a sample effective, is suitable for the characteristics of field sampling work, adapts to various field sampling conditions; Patented claim 2009100181311 discloses a kind of polluted water body sampler, this water body sampler includes the housing of a up/down perforation, the wall on housing top is provided with the open-work of perforation, but housing bottom offers folding and sealable bottom, connect a ball float with rope on described bottom, the housing outer wall is provided with and connects two rings that the cord of yardstick is arranged surely, and this cord ties up on two rings, and there is a plummet in lower end system.The sewage that this sewage sampler body device is easy and simple to handle, can gather different depth.But above-mentioned two kinds of water sampling devices do not arrange the depth localization parts, be only applicable to the sampling activity under stationary state, sampling thief is in traction rope described in high-speed moving state or high flow velocity water body and counterweight or cord and easily swing arbitrarily of plummet, in water body, the position of sampling thief changes, sampling depth when causing sampling thief to gather water sample comes and go, and can not guarantee that the degree of depth of the water sample that gathers is constant.
And for example, utility model patent 201120049363.6 provides a kind of Novel water quality sampler, the structure of this sampling thief comprises kettle and pole, kettle is arranged on pole, and two ends, described pole up and down are respectively arranged with fixed pulley, are connected together by driving-chain between fixed pulley, described kettle is connected with pole by slip cap, be slidably connected between slip cap and pole, slip cap is connected with driving-chain, and the kettle upper end is provided with the pull switch; Described pole upper end and pole are vertically installed with handle, and the handle lower end is provided with angle sheave, has taken withdrawal cord on angle sheave, and the other end that an end is provided with the withdrawal cord of draw ring is connected with the pull switch.This sampling thief compared to the prior art, have in reasonable in design, simple in structure, easy to use, equipment slippage hand, be convenient to the characteristics such as carry out smoothly of work, but this sampling thief needs manually the water sample collecting part repeatedly to be moved repeatedly, can not automatically gather continuously, be not easy to the collection of a large amount of water samples, be only applicable to the grab sampling activity.Utility model patent 2011200497373.X provides a kind of water-quality sampler, comprise kettle and pole, kettle is arranged on the pole lower end, described pole is divided into basic pole, one-level pole and secondary pole, secondary pole one end is inserted in one-level pole one end and is slidably connected with it, the one-level pole other end is inserted in basic pole one end and is slidably connected with it, and the pole junction is provided with locking sleeve; Described kettle is arranged on the other end of one-level pole.This sampling thief compared to the prior art, have reasonable in design, simple in structure, easy to use, easy to carry, the characteristics such as increase work efficiency, but this device needs manually whole sampling thief repeatedly to be put into water repeatedly samples, can not automatically gather continuously, and be not easy to the collection of a large amount of water samples, be only applicable to the grab sampling activity.Utility model patent 201120108393.X discloses a kind of fixed-point water quality sampler, there are the water inlet of going to the bottom, a Shang Ding that the cylindrical shell of freeing port is arranged, the bottom inner face of cylindrical shell arranges the water intaking valve that covers water inlet, the top of cylindrical shell is provided with the draining valve that covers freeing port, the upper end of cylindrical shell articulates handle by the hanging nose of both sides, is connected with connecting rod between water intaking valve and draining valve.The utility model is simple in structure, easily operation, and it is high that fixed point gathers the water sample degree of accuracy, be convenient to water examination department and use, but this sampling thief is only applicable to grab sampling, is not suitable for the water sampling automatically continuously under high-speed moving state.
Above-mentioned existing water sample sampling device or equipment can only carry out artificial grab sampling, could implement manual water sampling when the static or low-speed motion of sampling carrier, can not carry out the Automatic continuous collection of water sample when sampling carrier high-speed mobile, also can't realize the Simultaneous Determination of water-quality guideline.In addition, when the water quality measurement probe is placed in water, owing to being subject to the powerful impact of current in carrier high-speed mobile or the larger Water Under matter detection probe of water velocity, be difficult to make probe to remain on a fixing degree of depth, affect reliability and the accuracy of measurement result.Can not collect fast, accurately, continuously the fixedly water sample at depth of water place of water body, and the space distribution of the water-quality guideline of this degree of depth be carried out accurately on-line synchronous measure.
Therefore, in order to collect fast, accurately, continuously the fixedly water sample at depth of water place of water body top layer, and the space distribution of this place's water-quality guideline is carried out on-line synchronous mensuration accurately, need exploitation a kind of easy and simple to handle, be easy to the field and install and use, particularly be suitable for automatic water sample acquisition device and the water quality measurement system of high-speed mobile or high-velocity flow condition.
Summary of the invention:
The present invention is directed to the problem that above-mentioned prior art exists, a kind of continuous automatic water sampler and water quality measurement system are provided, water sampler of the present invention is simple in structure, easy and simple to handle, easy to use, the on-the-spot characteristics that are fit to the field environments such as rivers and lakes reservoir, water quality measurement system measurement accuracy, reliability as a result is high, be particularly useful for water sampling and water quality measurement under high-speed moving state or high-velocity flow condition, need not additionaling power, the water-quality guideline at place, sampling location is carried out on-line synchronous mensuration accurately.
For realizing purpose of the present invention, one aspect of the present invention provides a kind of water sampler, comprises the water collector that is arranged in water body and gathers water sample; The water sample of water collector collection is promoted to the water tank of the water sample of aqueduct more than the water surface and store collected.
Wherein, also comprise flexible mozzle, be connected between described aqueduct and water tank, so that water sample in aqueduct is guided to described water tank.
Particularly, described mozzle is soft conduit, can facilitate freely placing of water receiver.
Wherein, described aqueduct comprises the horizontal segment that is connected with water collector and the bending segment that becomes with horizontal segment greater than the angle [alpha] of 90 °.
Particularly, described angle [alpha] is preferably 120～135 °.
Especially, an end of described aqueduct is the horizontal horizontal segment that is straight, parallels with the surface level of water body, and its other end is bending segment, stretches out the water surface, and the angle α of the horizontal segment of aqueduct and bending segment＞90 ° is preferably 120～135 °.
Particularly, the horizontal segment of described aqueduct is connected with the small end of water collector.
Wherein, described water collector and described aqueduct horizontal segment are coaxial, the coaxial kinetic energy rejection that can effectively reduce current of water collector and aqueduct horizontal segment.
Particularly, the diameter of the small end of described water collector is identical with the diameter of the horizontal segment of described aqueduct.
Wherein, described water collector is the frusto-conical with large end and small end, and its large end flows into for water sample, and its small end is connected with described aqueduct.
Particularly, the angle of taper of described frusto-conical water collector≤45 ° are preferably 22.5～35 °.
Especially, the small end (horn throat or water export) of described frusto-conical water collector is fixedly connected with described aqueduct.The large end of described frusto-conical water collector (being hydraucone or flow inlet) is away from described aqueduct, is used for collecting water sample in movement or the water that flows.
Particularly, describedly be fixedly connected as welding, rivet, be threaded or buckle connects.
Wherein, described water tank tank body is offered water inlet near the position of bottom, is used for making the collection water sample that promotes through aqueduct to flow into described water tank.
Particularly, the water sample that described water collector is gathered is introduced described water tank through described aqueduct by described water inlet.
Particularly, the water sample that described water collector is gathered is introduced described water tank through described aqueduct and described mozzle by water inlet.
Particularly, at described water inlet, one way stop peturn valve is installed, the water sample that prevents from entering in described water tank refluxes.
Especially, also connect water inlet pipe on described water inlet, described mozzle is connected with water inlet pipe, will flow into described water tank through the collection water sample that aqueduct promotes.
Wherein, establish run-down pipe on described water tank top, be used for discharging the water sample in water tank; Establish the socket that can insert probe at described water tank top.
Particularly, also comprise horizontal duct, described horizontal duct is connected between described aqueduct and described mozzle.
Wherein, an end of horizontal duct is connected with the end of aqueduct, namely is connected with the end of the bending segment of described aqueduct, and the other end is connected with described mozzle.
Especially, also comprise elbow between described aqueduct and described horizontal duct, an end of elbow is connected with the end of aqueduct, namely is connected with the end of the bending segment of described aqueduct, and the other end is connected with described horizontal duct.
Water sample after horizontal duct is used for aqueduct is promoted is derived from the aqueduct end, then import in the water tank that is arranged on the sampling carrier by described mozzle, also can be used as simultaneously the stationary installation of water sampler, for example: when using on sampling boat, aqueduct is positioned at outside ship side, horizontal duct can be placed and be fixed on ship side, thereby the position of whole water sampler is fixed; According to field condition, when using other fixing means, also can not use this horizontal duct and elbow, and mozzle directly is connected with the aqueduct end.
Particularly, use the leakproof intermediate plate closely to fix in the junction of the water inlet pipe of mozzle and horizontal duct, mozzle and water receiver, leak at the pipe joint place to prevent the water sample.
The present invention provides a kind of water sampler on the other hand, comprises the following device that is linked in sequence: water collector, aqueduct, mozzle, water tank, wherein:
Water collector is arranged in water body and gathers water sample in water body;
Aqueduct is used for the water sample of water collector collection is promoted on the water surface;
Mozzle is used for the aqueduct water sample is introduced described water tank;
Water tank is for the water sample of store collected.
Wherein, described water collector is the frusto-conical (being round table-like or horn-like) with large end and small end, and its large end flows into for water sample, and its small end is connected with described aqueduct.
Particularly, the angle of taper of described frusto-conical water collector≤45 ° are preferably 22.5～35 °.
Especially, the small end (horn throat or water export) of described frusto-conical water collector is fixedly connected with described aqueduct.The large end of described frusto-conical water collector (being hydraucone or flow inlet) is away from described aqueduct, is used for collecting water sample in movement or the water that flows.
Particularly, describedly be fixedly connected as welding, rivet, be threaded or buckle connects.
Water collector is the frusto-conical (being round table-like or horn-like) with large end and small end, the local kinetic energy rejection in the time of can effectively reducing current and enter aqueduct.
Particularly, current the large end (being flow inlet) of frusto-conical water collector and and small end (being horn throat) between kinetic energy rejection and its angle of taper substantial connection is arranged, angle of taper is large, the kinetic energy rejection of current is large, therefore in order to reduce the water flow loss of energy, water collector angle of taper≤45 °, more preferably 22.5～35 °.
Wherein, described aqueduct comprises the horizontal segment that is connected with water collector and the bending segment that becomes with horizontal segment greater than the angle [alpha] of 90 °.
Particularly, described angle [alpha] is preferably 120～135 °.
Particularly, an end of described aqueduct is the horizontal horizontal segment that is straight, parallels with the surface level of water body, and its other end is bending segment, stretches out the water surface, and the horizontal segment of bend pipe and the angle of bending segment＞90 ° are preferably 120～135 °.
Especially, the horizontal segment of described aqueduct is connected with the small end of water collector.
Wherein, described water collector and described aqueduct horizontal segment are coaxial, the coaxial kinetic energy rejection that can effectively reduce current of water collector and aqueduct horizontal segment.
Particularly, the diameter of the small end of described water collector is identical with the diameter of the horizontal segment of described aqueduct.
After the water sample of collecting by water collector enters aqueduct, in aqueduct during flow at high speed, flowing velocity, flow direction and pressure that the bending of aqueduct and the flip-flop in cross section all can change water sample fluid in pipeline distribute, thereby the pipeline wall at aqueduct produces separation flow, form vortex region between main flow and limit wall, cause kinetic energy rejection.In order to reduce the kinetic energy rejection of water sample as far as possible, described aqueduct selects two sections of the front and back that connect without rigid joint to be the bend pipe of straight pipe.
Can cause the kinetic energy rejection of current due to bend pipe, and before and after the pipe bending place, the angle of two sections is less, the water flow dynamic energy loss is larger.Therefore, the angle [alpha] of aqueduct is answered＞90 °, and more preferably 120～135 °.
The bending angle α of aqueduct is during less than 90 °, and current are large at the local kinetic energy rejection at turning; And as bending angle α during greater than 135 °, the length that water sample is caused the identical required bending segment of height is longer, makes larger along the journey kinetic energy rejection in flow process of water sample, and is not easy to on-the-spot installation and use.During at 120～135 °, can reduce current at the local kinetic energy rejection at the turning of bend pipe as bending angle α, can guarantee that again water sample is suitable at the operation length of the bending segment of bend pipe, reduce water sample along the kinetic energy rejection of bend pipe flow process.
Wherein, an end of described mozzle is connected with aqueduct, and the other end is connected with the bottom of described water tank, and the water sample of collecting is introduced described water tank from the bottom of water tank.
Particularly, described mozzle is soft conduit, can facilitate freely placing of water receiver.
Wherein, described water tank tank body is offered water inlet near the bottom, and described mozzle is connected with described water tank by water inlet, and water sample is introduced described water tank.
Particularly, offer the installed inside one way stop peturn valve of water inlet at described water tank tank body, the water sample that prevents from entering in water tank refluxes.
Especially, also connect water inlet pipe on described water inlet, described mozzle is connected with water inlet pipe.
Particularly, offer run-down pipe on the top of described water tank, be used for discharging the water sample in water tank.
Particularly, also comprise horizontal duct between described aqueduct and described mozzle, an end of horizontal duct is connected with the end of aqueduct, namely is connected with the end of the bending segment of described aqueduct, and the other end is connected with described mozzle.
Especially, also comprise elbow between described aqueduct and described horizontal duct, an end of elbow is connected with the end of aqueduct, namely is connected with the end of the bending segment of described aqueduct, and the other end is connected with described horizontal duct.
Water sample after horizontal duct is used for aqueduct is promoted is derived from the aqueduct end, then import in the water tank that is arranged on the sampling carrier by described mozzle, also can be used as simultaneously the stationary installation of water sampler, for example: when using on sampling boat, aqueduct is positioned at outside ship side, horizontal duct can be placed and be fixed on ship side, thereby the position of whole water sampler is fixed; According to field condition, when using other fixing means, for example directly fixedly during the bending end of aqueduct, also can not use this horizontal duct and elbow, and mozzle directly is connected with the aqueduct end.
Particularly, use the leakproof intermediate plate closely to fix in the junction of the water inlet pipe of mozzle and horizontal duct, mozzle and water receiver, leak at the pipe joint place to prevent the water sample.
Particularly, described water sampler is to use under the high condition of the flowing velocity of described water collector high-speed mobile or sampling water sample.
Especially, the water collector of described water sampler and the relative velocity of the current in water body 〉=5 meter per seconds, when being preferably the 5-10 meter per second, the water sampler Automatic continuous is collected water sample, it is the relative velocity 〉=5 meter per seconds of current in the speed of water collector and water body, when being preferably the 5-10 meter per second, described water sampler Automatic continuous is collected water sample.
Another aspect provides a kind of water quality detection system, comprises the water quality detection probe that above-mentioned water sampler and the water tank that is positioned over described water sampler are interior.
Wherein, the test position of described water quality detection probe tip is positioned at the bottom of described water tank, is used for measuring the water sample water quality that is collected in water tank.
Wherein, establish the socket that can insert probe at described water tank top.
Particularly, dismountable top cover is installed at the top of described water tank.
Particularly, offer on described top cover for the socket of placing described water quality detection probe, described water quality detection probe is positioned in described water tank by described socket, makes the test position of probe tip be positioned at the bottom of described water tank.
Provide a kind of water quality detection system on the one hand again, comprise water sampler and water quality detection probe, described water sampler comprises the following device that is linked in sequence: water collector, aqueduct, mozzle, water tank, wherein
Water collector is arranged in water body and gathers water sample in water body;
Aqueduct is used for the water sample of water collector collection is promoted on the water surface;
Mozzle is used for the aqueduct water sample is introduced described water tank;
Water tank is for the water sample of store collected;
Described water quality detection probe is positioned in described water tank, and the test position of probe tip is positioned at the bottom of described water tank, is used for measuring the water sample water quality that is collected in water tank.
Wherein, described water collector is the frusto-conical (being round table-like or horn-like) with large end and small end, and its large end flows into for water sample, and its small end is connected with described aqueduct.
Particularly, the angle of taper of described frusto-conical water collector≤45 ° are preferably 22.5～35 °.
Especially, the small end (horn throat or water export) of described frusto-conical water collector is fixedly connected with described aqueduct.The large end of described frusto-conical water collector (being hydraucone or flow inlet) is away from described aqueduct, is used for collecting water sample in movement or the water that flows.
Particularly, describedly be fixedly connected as welding, rivet, be threaded or buckle connects.
Water collector is the frusto-conical (being round table-like or horn-like) with large end and small end, the local kinetic energy rejection in the time of can effectively reducing current and enter aqueduct.
Particularly, current have substantial connection at the large end (being flow inlet) of frusto-conical water collector and kinetic energy rejection and its angle of taper between small end (being horn throat), angle of taper is large, the kinetic energy rejection of current is large, therefore in order to reduce the water flow loss of energy, the water collector angle of taper is answered≤45 °, more preferably 22.5～35 °.
Wherein, described aqueduct comprises the horizontal segment that is connected with water collector and the bending segment that becomes with horizontal segment greater than the angle [alpha] of 90 °.
Particularly, described angle [alpha] is preferably 120～135 °.
Particularly, an end of described aqueduct bend pipe is the horizontal horizontal segment that is straight, parallels with surface level, and its other end is bending segment, stretches out the water surface, and the angle α of the horizontal segment of bend pipe and bending segment＞90 ° is preferably 120～135 °.
Especially, the horizontal segment of described aqueduct is connected with the water collector small end.
Wherein, described water collector and described aqueduct horizontal segment are coaxial.
Particularly, the diameter of the small end of described water collector is identical with the diameter of the horizontal segment of described aqueduct.
Wherein, an end of described mozzle is connected with aqueduct, and the other end is connected with the bottom of described water tank, and the water sample of collecting is introduced described water tank from the bottom of water tank.
Particularly, described mozzle is soft conduit, can facilitate freely placing of water receiver.
Wherein, described water tank tank body is offered water inlet near the bottom, and described mozzle is connected with described water tank by water inlet, and water sample is introduced described water tank.
Particularly, offer the installed inside one way stop peturn valve of water inlet at described water tank tank body, the water sample that prevents from entering in water tank refluxes.
Especially, also connect water inlet pipe on described water inlet, described mozzle is connected with water inlet pipe.
Particularly, offer run-down pipe on the top of described water tank, be used for discharging the water sample in water tank.
Wherein, dismountable top cover is installed at the top of described water tank.
Particularly, offer on described top cover for the socket of placing described water quality detection probe, described water quality detection probe is positioned in described water tank by described socket, makes the test position of probe tip be positioned at the bottom of described water tank.
Water sample through the water collector collection enters water tank bottom the water storage jar, flow out from its top run-down pipe, after enter described water tank the water sample water sample that promotes to be introduced into water tank to be upward flow in water tank moving, the test position of water quality detection probe is positioned at the water tank bottom, and what guaranteed that the water quality detection probe measures is the water sample water quality that newly enters water tank.
Particularly, also comprise horizontal duct between described aqueduct and described mozzle, an end of horizontal duct is connected with the end of aqueduct, namely is connected with the end of the bending segment of described aqueduct, and the other end is connected with described mozzle.
Water sample after horizontal duct is used for aqueduct is promoted is derived from the aqueduct end, then import in the water tank that is arranged on the sampling carrier by described mozzle, also can be used as simultaneously the stationary installation of water sampler, for example: when using on sampling boat, aqueduct is positioned at outside ship side, horizontal duct can be placed and be fixed on ship side, thereby the position of whole water sampler is fixed; According to field condition, when using other fixing means, also can not use this horizontal duct and elbow, and mozzle directly is connected with the aqueduct end.
Especially, also comprise elbow between described aqueduct and described horizontal duct, an end of elbow is connected with the end of aqueduct, namely is connected with the end of the bending segment of described aqueduct, and the other end is connected with described horizontal duct.
Particularly, use the leakproof intermediate plate closely to fix in the junction of the water inlet pipe of mozzle and horizontal duct, mozzle and water receiver, leak at the pipe joint place to prevent the water sample.
Particularly, described water sampler is to use under the high condition of the flowing velocity of described water collector high-speed mobile or sampling water sample.
Especially, the water collector of described water sampler and the relative velocity of the current in water body 〉=5 meter per seconds, when being preferably the 5-10 meter per second, the water sampler Automatic continuous is collected water sample, it is the relative velocity 〉=5 meter per seconds of current in the speed of water collector and water body, when being preferably the 5-10 meter per second, described water sampler Automatic continuous is collected water sample.
Particularly, described water quality detection system is to use under the high condition of the flowing velocity of the water collector high-speed mobile of described water sampler or the water sample of sampling.
Especially, the water collector of described water sampler and the relative velocity of the current in water body 〉=5 meter per seconds, when being preferably the 5-10 meter per second, the water sampler Automatic continuous is collected water sample, it is the relative velocity 〉=5 meter per seconds of current in the speed of water collector and water body, when being preferably the 5-10 meter per second, described water sampler Automatic continuous is collected water sample.
Water sampler of the present invention and water quality detection system can be widely used in carrying out water sample under high-speed moving state and automatically gather continuously synchro measure with water quality parameter in the natural water bodies such as rivers and lakes reservoir, also can be used for fixed point water sample under the high-velocity flow condition and collect with water quality parameter and measure, good application prospect is arranged in monitoring water environment and water pollution aspect preventing and treating.Water sampler of the present invention and water quality monitoring system have following advantage:
1, apparatus structure of the present invention simple, be easy to install, easy and simple to handle, the water sampling degree of depth is stable, easily controls, the water-quality guideline testing result is accurate.
2, device of the present invention can realize fast, accurately, the automatic folding water sample at the various depth of waters of surface layer place that catchments continuously, and the space distribution of the water-quality guideline of this depth is carried out accurately on-line synchronous measure, be beneficial to analysis and the research of the spatial distribution state of water quality.
3, water sampler of the present invention can gather water sample automatically in mobile status or to the current with high flow rate, need not manually to apply other power, utilize the movement of sampling carrier or the mobile kinetic energy of water body automatically to gather water sample, can utilize the relative kinetic energy of current and collector automatically to gather water sample, and can the continuous acquisition water sample, be suitable for field environment and use, be particularly suitable for using under high-speed mobile or high-velocity flow condition.
4, the scale marker on the aqueduct of water sampler of the present invention is the sounding mark that the water collector of collector gos deep into water body, accurately determining the sampling depth of water when having facilitated the field conduct water sampling, obvious change can not occur in the water sample degree of depth of having guaranteed continuous acquisition, has realized collecting exactly the fixedly water sample of the depth of water.
5, the water quality detection of water quality detection system of the present invention probe is placed in water collector water sample storage tank all the time, contact with the fresh water sample that successively enters storage tank, real-time synchronization detects the water sample water quality that enters storage tank, the water quality measurement probe is connected with the water-quality guideline recording unit, has realized unattended automatic mensuration and record to water-quality guideline.
Description of drawings:
Fig. 1 is a kind of embodiment structural representation of water sampler of the present invention and water quality measurement system;
Fig. 2 is water collector shown in Figure 1 and aqueduct connection diagram;
Fig. 3 is the schematic top plan view of water collector shown in Figure 1, aqueduct, elbow and horizontal duct;
Fig. 4 is the another kind of embodiment structural representation of water sampler of the present invention and water quality measurement system.
Description of reference numerals: 1, water collector; 11, browser at the bottom of the catchment; 12, water collector top; 2, aqueduct; 21, horizontal segment; 22, bending segment; 3, elbow; 4, horizontal duct; 5, leakproof intermediate plate; 6, mozzle; 7, water tank; 71, water inlet; 72, one way stop peturn valve; 73, run-down pipe; 74, water inlet pipe; 75, top cover; 76, socket; 8, water quality detection probe.
Embodiment:
Further describe the present invention below in conjunction with specific embodiment, advantage and disadvantage of the present invention will be more clear along with description.But these embodiment are only exemplary, scope of the present invention are not consisted of any restriction.It will be understood by those skilled in the art that lower without departing from the spirit and scope of the present invention and can modify or replace details and the form of technical solution of the present invention, but these modifications and replacement all fall within the scope of protection of the present invention.
As shown in Figure 1, 2, 3, automatic water sampler of the present invention is linked in sequence and is formed by water collector 1, aqueduct 2,90 ° of elbows 3, horizontal duct 4, mozzle 6, water tanks 7.
Comprise the horizontal segment 21 that is connected with water collector and the inner wall smooth that becomes with horizontal segment greater than the aqueduct 2 of the bending segment 22 of the angle [alpha] of 90 °, matter is hard, and the water sample that water collector is collected is promoted on the water surface, namely promotes water sample in water body to the water surface.It is straight horizontal that the horizontal segment 21 of aqueduct 2 is, and parallels with the surface level of water body; Bending segment 22 stretches out the water surface, and the water sample of certain depth of water that water collector 1 is collected rises on the water surface of water body by aqueduct 2, in order to carry out water quality detection on the water surface.The horizontal segment 21 of aqueduct 2 and the angle α of bending segment 22＞90 °.
The bending segment 22 of aqueduct 2 is marked with scale, be used for to indicate the horizontal segment 21 that is positioned at the aqueduct 2 under the water body water surface and water collector 1 and is in the degree of depth under the water surface, is the depth of immersion of water collector 1 in water body when gathering water sample.When gathering water sample, be the water sample at 1 meter, 3 meters, 10 meters if need to gather the depth of water, only need make the water surface respectively with 1 meter, 3 meters, 10 meters concordant the getting final product in scale place, can guarantee that the water sample degree of depth of continuous acquisition obvious change can not occur.
Scale marker on the bending segment 22 of aqueduct 2 calculates the horizontal segment 21 of corresponding aqueduct 2 apart from the vertical range of water body surface level according to the high computational formula of right-angle triangle, and computing formula is suc as formula shown in (I):
H＝L*sin(180°-α) (1)
Wherein, the scope of the bending angle α of aqueduct 2 is＞90 °, is preferably 120～135 °;
H be aqueduct 2 horizontal segments 21 apart from the vertical range of water body surface level, i.e. the depth of water of the water sample that gathers of water collector;
L is that aqueduct 2 bending segments 22 stretch into the length in water body.
The horizontal segment 21 of aqueduct 2 is fixed together by the mode of welding, riveting, being threaded or buckle being connected with the top 12 of water collector 1.Water collector 1 is coaxial with described aqueduct horizontal segment 21, and the diameter at the top 12 of water collector is identical with the diameter of the horizontal segment 21 of described aqueduct.
In the embodiment of the present invention, the horizontal segment 21 of aqueduct 2 is integrally welded with the top 12 of water collector 1, is fixedly connected with.
One end of horizontal duct 4 is connected with the bending segment 22 of aqueduct 2, and its other end is connected with an end of mozzle 6, and two ends with 5 sealings of leakproof intermediate plate, prevent that water sample from leaking respectively.
End at the bending segment 22 of aqueduct in the present invention can also not connect horizontal duct 4, directly the bending segment 22 with aqueduct 2 directly is connected with an end of mozzle 6, water sample in aqueduct 2 is directly imported in mozzle 6, by mozzle 6, water sample is sent into water tank, as shown in Figure 4.
In the embodiment of the present invention for the ease of installing and using, between aqueduct 2 and horizontal duct 4, elbow 3 is installed also, one end of elbow 3 is connected with the end of aqueduct 2, namely be connected with the end of the bending segment 22 of described aqueduct 2, the other end is connected with described horizontal duct 4, make water stream channel smooth and easy, water sample is introduced in horizontal duct 4.Described elbow is except selecting 90 ° of elbows, and other elbows all are applicable to the present invention.
Water tank 7 is cylindric, is used for holding the water sample of collection.Offer water sample water inlet 71 at water tank 7 tank bodies near the bottom, the installed inside of offering water inlet 71 at water tank 7 tank bodies prevents from entering the one way stop peturn valve 72 that the water sample in water tank refluxes; Offer for the run-down pipe 73 of discharging the unnecessary water sample in water tank on the top of described water tank 7 tank bodies.
The water inlet pipe 74 that is tightly connected in the outside that water tank 7 tank bodies are offered water inlet 71, mozzle 6 is connected with water inlet pipe 74, and water sample is introduced in water tank 7, and mozzle 6 seals by leakproof intermediate plate 5 with water inlet pipe 74.
In the present invention water tank except be cylindric, other any shapes all are applicable to the present invention, such as rectangular-shaped, cube-shaped, spherical etc.
As shown in Figure 1, water quality detection system of the present invention comprises water sampler and water quality detection probe 8, and wherein, described water sampler comprises the following device that is linked in sequence: water collector 1, aqueduct 2, horizontal duct 4, mozzle 6, water tank 7; Described water quality detection probe 8 is positioned in described water tank 7, and the test position on water quality detection probe 8 tops is positioned at the bottom of water tank 7, is used for measuring the water sample water quality that is collected in water tank 7.
In the present invention, water quality detection probe 8 can directly be placed in water tank 7 and get final product, in order to make water quality detection probe 8 in the situation that mobile carrier or high water velocity are more stable, the embodiment of the present invention is installed dismountable top cover 75 at the top of water tank 7, offers on top cover 75 be used to the socket 76 of placing described water quality detection probe 8.Described water quality detection probe 8 is positioned in described water tank 7 by described socket 76, and with the test department position on described water quality detection probe 8 tops in the bottom of described water tank 7, the powerful water impact that has been subject to when having avoided the water quality detection probe directly is placed in water body.
Because water sample enters near the bottom from water storage jar 7, flow out from the top run-down pipe, after enter water sample that the water sample of water tank promotes to be introduced into to be upward flow in water tank moving, the test position of water quality detection probe is positioned at the water tank bottom, has guaranteed that the numerical value that probe is measured is the up-to-date water quality that enters the water sample of water tank.
In addition, the horizontal sectional area of water tank 7 is much larger than the sectional area of water inlet, therefore water sample rises in water tank 7 when flowing, the water velocity of its upflow velocity in the water body, water quality detection probe 8 can not be subject to water impact, all the time be positioned at the bottom of water tank 7 and can not fluctuate, thereby what guarantee also that water quality detection probe 8 measures all the time is the up-to-date water quality that enters the water sample of water tank.
Water quality detection probe 8 is connected with the water quality parameter register instrument by the data communication transmission cable, and the water quality data keeping records that measures is in real time got off, and is used for follow-up water sample quality analysis.Thereby realize fast, accurately, the automatic folding fixedly water sample at depth of water place of surface layer that catchments continuously, and the space distribution of the water-quality guideline of this depth is carried out on-line synchronous mensuration accurately, be beneficial to analysis and the research of the spatial distribution state of water quality.
In order to facilitate being connected of aqueduct 2 and horizontal duct 4, adopt elbow 3 to be connected between aqueduct 2 and horizontal duct 4 in the embodiment of the present invention, for the ease of installing and using, adopt 90 ° of elbows to connect.According to field condition, also can not use elbow 3 and horizontal duct 4, and mozzle 6 directly is connected with the bending segment 22 of aqueduct 2.
The angle of taper of the water collector of frusto-conical described in the present invention 1≤45 ° is preferably 22.5～35 °; The bending angle of described rigid elbow 2＞90 ° are preferably 120～135 °; Described soft mozzle 6 is the nonrigid plastic pipeline, is convenient to water tank 7 and puts suitable freely placing because of ground.
The principle of work of water sampler of the present invention and water quality detection system is as follows:
under sampling carrier high-speed moving state or in having the current of certain water velocity, the a certain degree of depth that water collector 1 and the aqueduct 2 of water sampler of the present invention is placed in the water body top layer, the horizontal segment 21 of aqueduct 2 is parallel with the surface level of water body, bending segment 22 parts are stretched out the water surface, the large end 11 of water collector 1 (being hydraucone or flow inlet) is towards the direction of current, current have certain relative velocity with respect to water sampler, at relative velocity during more than or equal to 5 meter per second, the current that enter in water collector 1 have higher kinetic energy, again because water collector 1 is frusto-conical, flow section area reducing from the large end 11 of water collector 1 to small end 12, flow velocity and dynamic pressure also further increase, the current that kinetic energy and flow velocity improve enter its bending segment 22 along the horizontal segment 21 of aqueduct 2, more than water sample is promoted to the water surface, after entering horizontal duct 4, then enter soft mozzle 6, then flow into water tank 7, the water body water sample is collected in water tank 7.Sampling carrier constantly mobile or water body constantly flows, and the water sample of collection continuously automatic guide flows in water tank 7, obtains the water sample of automatically collecting continuously.
When gathering water sample in sampling carrier moving process, water collector 1 and aqueduct 2 are put into water body, and the large end 11 that makes water collector 1 is towards consistent with the moving direction of sampling carrier, in large end 11 (water sample import or the hydraucone of water collector) the inflow water collector of the water sample when the sampling carrier moves in water body facing to water collector 1.Water collector 1 gos deep into after certain depth, aqueduct 2 being fixed under water body on the sampling carrier, make the sampling depth of water collector 1 constant, the sampling carrier drives water collector 1 when moving and aqueduct 2 moves simultaneously with same speed, the sampling carrier is with respect to the relative velocity that water body has, be exactly water collector 1 in the water sampling process with respect to water body in the relative velocity of current.When for example gathering water sample in the lake, in the lake, the flow velocity of water is 0, and the translational speed when the sampling carrier gathers water sample in the lake is 7 meter per seconds, in sampling process in water collector and water body the relative velocity of current be 7 meter per seconds.
When gathering water sample in the water body that flows, water collector 1 and aqueduct 2 are put into water body, and make the large end 11 of water collector 1 towards the direction of water body current, be the large end 11 (being water sample import or the hydraucone of water collector) of water collector 1 against the direction of current (be water collector 1 large end 11 towards or meet direction to current), the current that flow flow into water collectors facing to the large end 12 of water collector 1.If the water collector of sampling does not move, the flow velocity of the water body that flows be exactly water collector 1 in the water sampling process with respect to water body in the relative velocity of current; If the water collector of sampling moves, the flow velocity of the water body that flows and water collector translational speed sum be exactly water collector 1 in the water sampling process with respect to water body in the relative velocity of current.For example, when the water inlet distributing channel of sewage treatment plant gathered Wastewater Sample, the flow velocity of sewage was 7 meter per seconds, and water collector does not move in the water distributing channel if be positioned over, the speed that is water collector is 0, in sampling process in water collector and water body the relative velocity of current be 7 meter per seconds; If the water collector that is positioned in distributing channel moves with the speed of the 2 meter per seconds direction against current, in sampling process in water collector and water body the relative velocity of current be 9 meter per seconds.
In the water sampling process in water body current with respect to the relative velocity of water collector 〉=5 meter per seconds, be preferably the 5-10 meter per second, be the flow velocity of current in water body and water sampler water collector with respect to relative velocity 〉=5 meter per seconds, be preferably the 5-10 meter per second, the carrier of guaranteeing to sample can continuously be promoted on the water body water surface by the water sample that water collector 1 gathers in moving process, enter in the water tank 7 that is placed on carrier, carry out water sample water analysis and detection.
Water sample successively flows into water tank 7, and water sample constantly rises in water receiver 7, and discharges from run-down pipe 73.Because water sample water inlet 71 is opened in water tank 7 tank bodies near the position of bottom, rise in water receiver 7 when water sample when flowing, be introduced into the water sample upwards promotion gradually that enters water tank after the water sample quilt of water receiver 7, the water surface that flows in the ban the water sample of water tank 7 reaches and when exceeding the height of run-down pipe 73, first discharges by run-down pipe 73 gradually.
Along with the rising of the water receiver 7 interior waters surface, or reduce when the current relative velocity, when causing current to pass through that general pressure is less than the static pressure in water receiver after pressure-drop in pipeline, one way stop peturn valve 8 is closed, and can prevent that collected water sample from flowing backwards by pipeline.
After water sample enters water tank 7 from the bottom of water tank 7, be positioned over that water quality detection 8 pairs of each water-quality guideline of probe (such as water temperature, dissolved oxygen DO and chlorophyllous content etc.) in water tank 7 are carried out continuously, automatic, synchro measure, because the test position of water quality detection probe 8 is positioned at the bottom of water tank 7, thus water quality detection probe 8 can be continuously, the water-quality guideline of the water sample of automatic, the up-to-date inflow water tank 7 of the real time measure.
Water quality detection probe 8 is connected with the water quality parameter register instrument by the data communication transmission cable, and the water quality data keeping records that measures is in real time got off, and is used for follow-up water sample quality analysis.
Adopt water sampler as shown in Figure 1 to gather the water sample at 1 meter of the depth of water in the lake, and adopt water quality measurement system synchronization of the present invention to measure the water sample water-quality guideline.
In this example, the sampling carrier is sampling boat, and the translational speed of sampling boat is 6 meter per seconds (translational speed of sampling boat can also for more than 5 meter per seconds, be preferably the 5-10 meter per second); Water tank 7 is positioned in sampling boat; Water collector 1 is fixedly connected with by welding manner with the horizontal segment 21 of aqueduct 2, and water collector 1 is coaxial with the horizontal segment 21 of aqueduct 2, and the diameter of the small end 12 of scuttlebutt 1 is identical with the diameter of the horizontal segment 21 of aqueduct 2; Horizontal duct 4 is connected and seals with the bending segment 22 of aqueduct 2 by 90 ° of elbows 3; The two ends of soft mozzle 6 are tightly connected by leakproof intermediate plate 5 and horizontal duct 4, water inlet pipe 74 respectively; Water inlet pipe 74 is connected with water tank 7 by water inlet 71; Water quality detection probe 8 inserts in described water tanks 7 by the sockets 76 on the water tank 7 dismountable top covers 75 in top, and makes the test position of probe tip be positioned at the bottom of water tank 7.
When entering current in water collector 1 and flowing to small end 12 from the large end 11 of water collector 1, flow section area reducing due to current, flow velocity and dynamic pressure also further increase, the current that kinetic energy and flow velocity increase enter aqueduct 2 with higher relative velocity, horizontal segment 21 along aqueduct 2 enters bending segment 22, flow at high speed also promotes and to enter horizontal duct 4, and then the mozzle 6 of flowing through successively, water inlet pipe 74 enter water tank 7.
In sampling boat advanced process, the lake water at the depth of water 1 meter continuously entered in water tank 7 automatically, reached the purpose of collecting water sample.8 pairs of water-quality guideline (such as water temperature, dissolved oxygen DO and chlorophyllous content etc.) that enter the water sample of water tank 7 of water quality detection probe are carried out synchronously, are measured automatically, in real time and record.
Except the lake water that can gather 1 meter of the depth of water, the water sample of other any degree of depth all can adopt collector of the present invention to gather.
Water sampler of the present invention can be used for gathering the water sample of any degree of depth under water body, and its water sampling degree of depth is preferably≤and 10 meters, more preferably≤5 meters.
Because the speed of current in pipeline is very fast, after it passes through pressure-drop in pipeline, general pressure is greater than the static pressure in water tank, lake water constantly enters from the bottom of water tank 7 automatically, the interior water sample water surface of water tank 7 constantly rises, when the water surface of the water sample of water tank 7 reached and exceeds the height of run-down pipe 73, water sample was discharged by run-down pipe 73.Along with the rising of the water receiver 7 interior waters surface, and reduce when the current relative velocity, when causing current to pass through that general pressure is less than the static pressure in water receiver after pressure-drop in pipeline, one way stop peturn valve 8 is closed, and can prevent that collected water sample from flowing backwards by pipeline.
Adopt water sampler as shown in Figure 1 to gather Wastewater Sample at the water inlet distributing channel of sewage treatment plant, and adopt water quality measurement system synchronization of the present invention to measure the water sample water-quality guideline.
The effluent flow rate of sewage treatment plant inflow distributing channel is 5 meter per seconds (flow velocitys can also for more than 5 meter per seconds).Water tank 7 is positioned over the bank of distributing channel one side, and water collector 1 is not moved; Water collector 1 is fixedly connected with by welding manner with the horizontal segment 21 of aqueduct 2, and water collector 1 is coaxial with the horizontal segment 21 of aqueduct 2, and the diameter on the top 12 of scuttlebutt 1 is identical with the diameter of the horizontal segment 21 of aqueduct 2; Horizontal duct 4 is tightly connected by the bending segment 22 of 90 ° of elbows 3 with aqueduct 2; The two ends of soft mozzle 6 are tightly connected by leakproof intermediate plate 5 and horizontal duct 4, water inlet pipe 74 respectively; Water inlet pipe 74 is connected with water tank 7 by water inlet 71; Water quality detection probe 8 inserts in described water tanks 7 by the sockets 76 on the water tank 7 dismountable top covers 75 in top, and makes the test position of probe tip be positioned at the bottom of water tank 7.
When entering sewage in water collector 1 and flowing to small end 12 from the large end 11 of water collector 1, flow section area reducing due to current, flow velocity and dynamic pressure also further increase, the current that kinetic energy and flow velocity increase enter aqueduct 2 with higher relative velocity, horizontal segment 21 along aqueduct 2 enters bending segment 22, flow at high speed and by 90 ° of elbows 3 promotes and enters horizontal duct 4, and then the mozzle 6 of flowing through successively, water inlet pipe 74 enter water tank 7.
Because the distributing channel overflow section is little, the discharge of sewage is large, and effluent flow rate is fast.In sampling process, in distributing channel, swiftly flowing sewage continuously enters in water tank 7 automatically.8 pairs of water-quality guideline that enter the Wastewater Sample of water tank 7 of water quality detection probe are carried out synchronously, are measured automatically, in real time and record.
Because the speed of current in pipeline is very fast, after it passes through pressure-drop in pipeline, general pressure is greater than the static pressure in water tank, sewage constantly enters water tank 7 automatically, the interior water sample water surface of water sample water tank 7 constantly rises, when the water surface of the water sample of water tank 7 reached and exceeds the height of run-down pipe 73, water sample was discharged by run-down pipe 73.Along with the rising of the water receiver 7 interior waters surface, and reduce when the current relative velocity, when causing current to pass through that general pressure is less than the static pressure in water receiver after pressure-drop in pipeline, one way stop peturn valve 8 is closed, and can prevent that collected water sample from flowing backwards by pipeline.
Claims (10)
1. water sampler is characterized in that comprising:
Be arranged in water body and gather the water collector (1) of water sample;
The water sample of water collector collection is promoted to aqueduct (2) more than the water surface;
The water tank of the water sample of store collected (7).
2. water sampler as claimed in claim 1 characterized by further comprising:
Flexible mozzle (6) is connected between described aqueduct and water tank, so that water sample in aqueduct is guided to described water tank (7).
3. water sampler as claimed in claim 1 or 2 is characterized in that:
Described aqueduct (2) comprises the horizontal segment (21) that is connected with water collector and the bending segment (22) that becomes with horizontal segment greater than the angle [alpha] of 90 °.
4. water sampler as claimed in claim 1 or 2 is characterized in that:
Described water collector (1) is the frusto-conical with large end and small end, and its large end flows into for water sample, and its small end is connected with described aqueduct.
5. water sampler as claimed in claim 1 or 2, it is characterized in that: described water tank (7) tank body is offered water inlet (71) near the position of bottom, is used for making the collection water sample that promotes through aqueduct (2) to flow into described water tank (7).
6. water sampler as claimed in claim 5, is characterized in that: at described water inlet (71), one way stop peturn valve (72) is installed, prevents from entering the water sample backflow in described water tank (7).
7. water sampler as claimed in claim 5 is characterized in that: establish run-down pipe (73) on described water tank (7) top.
8. water sampler as claimed in claim 5 is characterized in that establishing the socket (76) that can insert probe (8) at described water tank (7) top.
9. water sampler as claimed in claim 2, characterized by further comprising horizontal duct (4), and described horizontal duct is connected between described aqueduct and described mozzle.
10. water quality detection system, comprise as arbitrary in claim 1-9 as described in water sampler and be positioned over as described in water quality detection probe (8) in the water tank (7) of collector.
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| CN201210134591.2A CN103383316B (en) | 2012-05-02 | 2012-05-02 | A water sample collector and water quality measurement system |
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| CN201210134591.2A CN103383316B (en) | 2012-05-02 | 2012-05-02 | A water sample collector and water quality measurement system |
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| CN103743594A (en) * | 2014-01-28 | 2014-04-23 | 中国地质科学院水文地质环境地质研究所 | Tube orifice diameter variable plug-in sampling instrument |
| CN104568497A (en) * | 2015-01-30 | 2015-04-29 | 周玉翔 | Infrared vulcanizer product sampler |
| CN105092311A (en) * | 2015-07-30 | 2015-11-25 | 珠江流域水资源保护局 | Aqueous oil sampler |
| CN107356452A (en) * | 2017-05-22 | 2017-11-17 | 安徽宏远职业卫生技术服务有限公司 | A kind of water sampler |
| CN107576533A (en) * | 2017-10-23 | 2018-01-12 | 中国环境科学研究院 | Vacuum type simple water sample collector |
| CN107764589A (en) * | 2016-08-20 | 2018-03-06 | 张少博 | A kind of river isotope automatic continuous sampling device |
| CN108045510A (en) * | 2017-10-11 | 2018-05-18 | 中国船舶重工集团公司第七〇五研究所 | A kind of unmanned hull of uninterrupted sampled measurements based on interior flow field design |
| CN108225834A (en) * | 2018-01-18 | 2018-06-29 | 浙江索奥环境技术有限公司 | Valve type waste water law enforcement evidence obtaining sampling robot |
| CN108343427A (en) * | 2018-04-24 | 2018-07-31 | 杭州丰禾石油科技有限公司 | Logging while drilling apparatus mandrel |
| CN110068484A (en) * | 2019-04-29 | 2019-07-30 | 中国矿业大学 | A kind of underground water drenching water sample collection device and its method |
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| CN112394186A (en) * | 2020-12-30 | 2021-02-23 | 安徽中科大赛悟科技有限公司 | Sampling detection device for water quality detection |
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| CN108225834A (en) * | 2018-01-18 | 2018-06-29 | 浙江索奥环境技术有限公司 | Valve type waste water law enforcement evidence obtaining sampling robot |
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| CN110068484A (en) * | 2019-04-29 | 2019-07-30 | 中国矿业大学 | A kind of underground water drenching water sample collection device and its method |
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| CN110702466B (en) * | 2019-10-28 | 2022-06-03 | 黄河水利职业技术学院 | A hydrological monitoring device |
| CN111999127A (en) * | 2020-09-09 | 2020-11-27 | 杭州西非电子信息技术有限公司 | Water sampling device capable of not deeply detecting water quality in river |
| CN112394186A (en) * | 2020-12-30 | 2021-02-23 | 安徽中科大赛悟科技有限公司 | Sampling detection device for water quality detection |
| CN112394186B (en) * | 2020-12-30 | 2023-12-05 | 中科赛悟科技(安徽)有限公司 | Sampling detection device for water quality detection |
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