CN103383316B - A kind of water sampler and water quality measurement system - Google Patents

A kind of water sampler and water quality measurement system Download PDF

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Publication number
CN103383316B
CN103383316B CN201210134591.2A CN201210134591A CN103383316B CN 103383316 B CN103383316 B CN 103383316B CN 201210134591 A CN201210134591 A CN 201210134591A CN 103383316 B CN103383316 B CN 103383316B
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China
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water
aqueduct
sample
collector
sampler
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CN103383316A (en
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杨敏
李峥
张昱
安伟
苏命
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Research Center for Eco Environmental Sciences of CAS
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Research Center for Eco Environmental Sciences of CAS
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Abstract

The invention provides a kind of water sampler and water quality detection system, water sampler comprises the water collector, aqueduct, mozzle, the water tank that are linked in sequence; Water quality detection system comprises water sampler and is placed on the water quality detection probe in the water tank of water sampler.Apparatus structure of the present invention is simple, it is easy and simple to handle to install, and without the need to additionaling power, by the water sampling below the water surface to the water surface, can carry out water quality monitoring.Water sampler of the present invention and water quality detection system are suitable for field environment and use, and use under being particularly suitable for high-speed mobile or high-velocity flow condition.Device of the present invention can realize fast, accurately, continuously automatically collect the water sample that depth of water place is fixed on water body top layer, carry out unmanned on-line synchronous accurately to the water-quality guideline at sampling location place to measure simultaneously, the water analysis of water sample is accurate, can water quality distribution situation in actual response water body.

Description

A kind of water sampler and water quality measurement system
Technical field
The present invention relates to water sample acquisition device and water quality detecting device, particularly one continuously, automatic water sampler with continuously, real-time water quality measuring system.
Background technology
In scientific research in water environment protection and management work, be one of very important basic work to the collection of the representative water sample of water body with to the mensuration of water-quality guideline.In order to grasp the regularity of distribution of water-quality guideline in water body, the on-line synchronous of the continuous acquisition and water-quality guideline of carrying out water sample in multiple position of water body and the fixing depth of water is needed to measure.
Numerous to the research of water sampling and determinator at present, and developed multiple business sampling thief, stratified sampling can be carried out to the water sample that difference requires, but existing water sample acquisition device and water analysis equipment or can only artificial grab sampling be carried out, for discontinuous sampling and water analysis outfit, continuous acquisition water sample can not be carried out, can not be continuous, real-time online measures and analyzes the water sample water quality collected, the water quality of the same degree of depth can not be measured uninterruptedly, during sampling, the degree of depth of water sample is unstable, water sample and the water analysis of collection are inaccurate, can not water quality distribution in actual response water body.
The such as patent No. a kind of lake demixing water sampling instrument that has been the disclosure of the invention of 200810056758.1, this water sampling device, comprise sampling bottle and traction rope, support the fixed mount of sampling bottle, the support of Connection Bracket, to be arranged on support and can move up and down along support, for sealing the packoff of sampling bottle, traction rope is fixedly connected with support, the end of support is provided with counterweight.Although this water sampling device ensures not cause significant dissolved gas to lose in sampling process, sample effective, be suitable for the feature of field sampling work, adapt to various field sampling condition; 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 of housing upper is provided with through open-work, housing bottom offers can folding and sealable bottom, described bottom connects a ball float with rope, housing exterior walls is provided with two rings that connection one has the cord of yardstick surely, and this cord ties up on two rings, and there is a plummet in lower end system.The sewage that this dirty water body sampler is easy and simple to handle, can gather different depth.But above-mentioned two kinds of water sampling devices do not arrange depth localization parts, be only applicable to the sample activity under stationary state, sampling thief traction rope and counterweight or cord and plummet described in high-speed moving state or high flow velocity water body easily swing arbitrarily, in water body, the position of sampling thief changes, cause sampling depth during samplers sample water sample to come and go, the constant depth of the water sample gathered can not be ensured.
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 the upper and lower two ends of described pole are respectively arranged with fixed pulley, are connected together between fixed pulley by driving-chain, 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 kettle upper end is provided with pull switch; Described pole upper end and pole are vertically installed with handle, and handle lower end is provided with angle sheave, and angle sheave has taken withdrawal cord, and the other end that one end is provided with the withdrawal cord of draw ring is connected with pull switch.This sampling thief compared to the prior art, have reasonable in design, structure is simple, in easy to use, equipment slippage hand, be convenient to the feature such as to carry out smoothly of work, but this sampling thief needs manually repeatedly repeatedly to be moved by water sample collecting part, can not automatically gather continuously, be not easy to the collection of a large amount of water sample, be only applicable to grab sampling activity.Utility model patent 2011200497373.X provides a kind of water-quality sampler, comprise kettle and pole, kettle is arranged on pole lower end, described pole is divided into base pole, one-level pole and secondary pole, secondary pole one end to be inserted in one-level pole one end and to be slidably connected with it, the one-level pole other end to be inserted in base pole one end and to be slidably connected with it, and 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, structure is simple, easy to use, easy to carry, the feature such as to increase work efficiency, but this device needs manually whole sampling thief repeatedly to be put into repeatedly water samples, can not automatically gather continuously, and be not easy to the collection of a large amount of water sample, be only applicable to grab sampling activity.Utility model patent 201120108393.X discloses a kind of fixed-point water quality sampler, have a water inlet of going to the bottom, cylindrical shell that Shang Ding has freeing port, the bottom inner face of cylindrical shell arranges the water intaking valve covering water inlet, the top of cylindrical shell is provided with the draining valve covering freeing port, the upper end of cylindrical shell, by the hanging nose mounting handle of both sides, is connected with connecting rod between water intaking valve and draining valve.The utility model structure is simple, easily operates, and it is high that fixed point gathers 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, manual water sampling could be implemented when sampling the static or low-speed motion of carrier, the Automatic continuous collection of water sample can not be carried out when sampling carrier high-speed mobile, also cannot realize the Simultaneous Determination of water-quality guideline.In addition, when 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 quality detection probe of water velocity, being difficult to make probe to remain on a fixing degree of depth, affecting reliability and the accuracy of measurement result.The water sample that water body fixes depth of water place can not be collected fast, accurately, continuously, and on-line synchronous mensuration is accurately carried out to the space distribution of the water-quality guideline of this degree of depth.
Therefore, in order to collect the water sample that depth of water place is fixed on water body top layer fast, accurately, continuously, and on-line synchronous mensuration is accurately carried out to the space distribution of this place's water-quality guideline, need exploitation a kind of easy and simple to handle, be easy to field and install and use, be particularly 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 above-mentioned prior art Problems existing, provide a kind of automatic water sampler and water quality measurement system continuously, water sampler structure of the present invention is simple, easy and simple to handle, easy to use, be applicable to the on-the-spot feature of the field environments such as rivers and lakes reservoir, water quality measurement system measurement result accuracy, reliability are high, be particularly useful for the water sampling under high-speed moving state or high-velocity flow condition and water quality measurement, without the need to additionaling power, on-line synchronous is accurately carried out to the water-quality guideline at sampling location place and measures.
For realizing object of the present invention, one aspect of the present invention provides a kind of water sampler, comprises and is arranged in water body and gathers the water collector of water sample; The water sample of water collector collection is promoted to the water tank of the aqueduct of more than the water surface and the water sample of 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 becomes to be greater than the bending segment of angle [alpha] of 90 ° with horizontal segment.
Particularly, described angle [alpha] is preferably 120 ~ 135 °.
Especially, one end of described aqueduct is in straight horizontal horizontal segment, parallels with the surface level of water body, its other end is bending segment, stretch out the water surface, the horizontal segment of aqueduct and the angle α > 90 ° of bending segment, be 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 coaxial, water collector and the coaxial kinetic energy rejection that effectively can reduce current of 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 in 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, angle of taper≤45 ° of described frusto-conical water collector, 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 (i.e. hydraucone or flow inlet) of described frusto-conical water collector away from described aqueduct, in movement or flowing water in collect water sample.
Particularly, be describedly fixedly connected as welding, rivet, be threaded or buckle connects.
Wherein, described water tank tank body offers water inlet near the position of bottom, flows into described water tank for making the collection water sample promoted through aqueduct.
Particularly, the water sample that described water collector gathers is introduced described water tank through described aqueduct by described water inlet.
Particularly, the water sample gathered by described water collector introduces described water tank through described aqueduct and described mozzle by water inlet.
Particularly, at described water inlet, one way stop peturn valve is installed, prevents the water sample backflow entered in described water tank.
Especially, described water inlet also connects water inlet pipe, described mozzle is connected with water inlet pipe, and the collection water sample promoted through aqueduct is flowed into described water tank.
Wherein, establish run-down pipe on described water tank top, for discharging the water sample in water tank; The socket that can insert probe is established at described water tank top.
Particularly, also comprise horizontal duct, described horizontal duct is connected between described aqueduct and described mozzle.
Wherein, one end of horizontal duct is connected with the end of aqueduct, is namely connected with the end of the bending segment of described aqueduct, and the other end is connected with described mozzle.
Especially, between described aqueduct and described horizontal duct, also comprise elbow, one end of elbow is connected with the end of aqueduct, is namely connected with the end of the bending segment of described aqueduct, and the other end is connected with described horizontal duct.
Horizontal duct is used for the water sample after being promoted by aqueduct derives from aqueduct end, then imported by described mozzle in the water tank be arranged on sampling carrier, also can be used as the stationary installation of water sampler simultaneously, such as: when using on sampling boat, aqueduct is positioned at outside ship side, horizontal duct can be placed and be fixed on ship side, thus 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 is directly connected with aqueduct end.
Particularly, use 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 pipe joint place to prevent water sample.
The present invention provides a kind of water sampler on the other hand, comprises the device that is linked in sequence as follows: water collector, aqueduct, mozzle, water tank, wherein:
Water collector, to be arranged in water body and the water sample gathered in water body;
Aqueduct, for being promoted on the water surface by the water sample of water collector collection;
Mozzle, for introducing described water tank by water sample in aqueduct;
Water tank, for the water sample of store collected.
Wherein, described water collector is in the frusto-conical (namely 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, angle of taper≤45 ° of described frusto-conical water collector, 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 (i.e. hydraucone or flow inlet) of described frusto-conical water collector away from described aqueduct, in movement or flowing water in collect water sample.
Particularly, be describedly fixedly connected as welding, rivet, be threaded or buckle connects.
Water collector, in the frusto-conical (namely round table-like or horn-like) with large end and small end, can reduce local kinetic energy rejection when current enter aqueduct effectively.
Particularly, current frusto-conical water collector large end (i.e. flow inlet) and and small end (i.e. horn throat) between kinetic energy rejection and its angle of taper have substantial connection, angle of taper is large, then the kinetic energy rejection of current is large, therefore in order to reduce 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 becomes to be greater than the bending segment of angle [alpha] of 90 ° with horizontal segment.
Particularly, described angle [alpha] is preferably 120 ~ 135 °.
Particularly, one end of described aqueduct is that parallel with the surface level of water body, its other end is bending segment, stretches out the water surface, the horizontal segment of bend pipe and the angle > of bending segment 90 ° in straight horizontal horizontal segment, is 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 coaxial, water collector and the coaxial kinetic energy rejection that effectively can reduce current of 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 collected by water collector enters aqueduct, in aqueduct during flow at high speed, bend flowing velocity, flow direction and the pressure that all can change aqueous fluids in pipeline with the flip-flop in cross section of aqueduct distribute, thus produce separation flow at the pipeline wall of aqueduct, between main flow and limit wall, form vortex region, cause kinetic energy rejection.In order to reduce the kinetic energy rejection of water sample, described aqueduct selects two sections, the front and back connected without rigid joint to be the bend pipe of straight pipe as far as possible.
Because bend pipe can cause the kinetic energy rejection of current, and before and after pipe bending place, the angle of two sections is less, and water flow dynamic energy loss is larger.Therefore, the angle [alpha] of aqueduct answers > 90 °, and more preferably 120 ~ 135 °.
When the bending angle α of aqueduct is less than 90 °, current are large at the local kinetic energy rejection at turning; And when bending angle α is greater than 135 °, length water sample being caused bending segment needed for identical height is longer, makes comparatively large along journey kinetic energy rejection in flow process of water sample, and be not easy to in-site installation and use.When bending angle α is at 120 ~ 135 °, the local kinetic energy rejection of current at the turning of bend pipe can be reduced, can ensure that again water sample is suitable at the operation length of the bending segment of bend pipe, reduce the kinetic energy rejection of water sample along bend pipe flow process.
Wherein, one 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 collection 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 offers water inlet near bottom, and described mozzle is connected with described water tank by water inlet, and water sample is introduced described water tank.
Particularly, one way stop peturn valve is installed in the inner side offering water inlet at described water tank tank body, prevents the water sample backflow entered in water tank.
Especially, described water inlet also connects water inlet pipe, described mozzle is connected with water inlet pipe.
Particularly, offer run-down pipe on the top of described water tank, for discharging the water sample in water tank.
Particularly, between described aqueduct and described mozzle, also comprise horizontal duct, one end of horizontal duct is connected with the end of aqueduct, is namely connected with the end of the bending segment of described aqueduct, and the other end is connected with described mozzle.
Especially, between described aqueduct and described horizontal duct, also comprise elbow, one end of elbow is connected with the end of aqueduct, is namely connected with the end of the bending segment of described aqueduct, and the other end is connected with described horizontal duct.
Horizontal duct is used for the water sample after being promoted by aqueduct derives from aqueduct end, then imported by described mozzle in the water tank be arranged on sampling carrier, also can be used as the stationary installation of water sampler simultaneously, such as: when using on sampling boat, aqueduct is positioned at outside ship side, horizontal duct can be placed and be fixed on ship side, thus the position of whole water sampler is fixed; According to field condition, when using other fixing means, such as, when directly fixing the bending end of aqueduct, also can not use this horizontal duct and elbow, and mozzle is directly connected with aqueduct end.
Particularly, use 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 pipe joint place to prevent water sample.
Particularly, described water sampler uses under the high condition of flowing velocity of described water collector high-speed mobile or sampling water sample.
Especially, relative velocity >=5 meter per second of the current in the water collector of described water sampler and water body, when being preferably 5-10 meter per second, water sampler Automatic continuous collects water sample, i.e. relative velocity >=5 meter per second of current in the speed of water collector and water body, when being preferably 5-10 meter per second, described water sampler Automatic continuous collects water sample.
Another aspect, provides a kind of water quality detection system, comprises above-mentioned water sampler and is positioned over the water quality detection probe in the water tank of described water sampler.
Wherein, the test position of described water quality detection probe tip is positioned at the bottom of described water tank, for measuring the water sample water quality be collected in water tank.
Wherein, the socket that can insert probe is established at described water tank top.
Particularly, dismountable top cover is installed at the top of described water tank.
Particularly, described top cover offers the socket for 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.
There is provided 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 device that is linked in sequence as follows: water collector, aqueduct, mozzle, water tank, wherein
Water collector, to be arranged in water body and the water sample gathered in water body;
Aqueduct, for being promoted on the water surface by the water sample of water collector collection;
Mozzle, for introducing described water tank by water sample in aqueduct;
Water tank, for the water sample of store collected;
Described water quality detection probe, be positioned in described water tank, the test position of probe tip is positioned at the bottom of described water tank, for measuring the water sample water quality be collected in water tank.
Wherein, described water collector is in the frusto-conical (namely 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, angle of taper≤45 ° of described frusto-conical water collector, 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 (i.e. hydraucone or flow inlet) of described frusto-conical water collector away from described aqueduct, in movement or flowing water in collect water sample.
Particularly, be describedly fixedly connected as welding, rivet, be threaded or buckle connects.
Water collector, in the frusto-conical (namely round table-like or horn-like) with large end and small end, can reduce local kinetic energy rejection when current enter aqueduct effectively.
Particularly, the kinetic energy rejection of current between the large end (i.e. flow inlet) and small end (i.e. horn throat) of frusto-conical water collector and its angle of taper have substantial connection, angle of taper is large, then the kinetic energy rejection of current is large, therefore in order to reduce water flow loss of energy, water collector angle of taper answers≤45 °, more preferably 22.5 ~ 35 °.
Wherein, described aqueduct comprises the horizontal segment that is connected with water collector and becomes to be greater than the bending segment of angle [alpha] of 90 ° with horizontal segment.
Particularly, described angle [alpha] is preferably 120 ~ 135 °.
Particularly, one end of described aqueduct bend pipe is that parallel with surface level, its other end is bending segment, stretches out the water surface, the horizontal segment of bend pipe and the angle α > 90 ° of bending segment in straight horizontal horizontal segment, is preferably 120 ~ 135 °.
Especially, the horizontal segment of described aqueduct is connected with water collector small end.
Wherein, described water collector and described aqueduct horizontal segment 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, one 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 collection 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 offers water inlet near bottom, and described mozzle is connected with described water tank by water inlet, and water sample is introduced described water tank.
Particularly, one way stop peturn valve is installed in the inner side offering water inlet at described water tank tank body, prevents the water sample backflow entered in water tank.
Especially, described water inlet also connects water inlet pipe, described mozzle is connected with water inlet pipe.
Particularly, offer run-down pipe on the top of described water tank, for discharging the water sample in water tank.
Wherein, dismountable top cover is installed at the top of described water tank.
Particularly, described top cover offers the socket for 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 water collector collection enters water tank bottom 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 move in upward flow in water tank, the test position of water quality detection probe is positioned at bottom water tank, and what ensure that water quality detection probe mensuration is the water sample water quality newly entering water tank.
Particularly, between described aqueduct and described mozzle, also comprise horizontal duct, one end of horizontal duct is connected with the end of aqueduct, is namely connected with the end of the bending segment of described aqueduct, and the other end is connected with described mozzle.
Horizontal duct is used for the water sample after being promoted by aqueduct derives from aqueduct end, then imported by described mozzle in the water tank be arranged on sampling carrier, also can be used as the stationary installation of water sampler simultaneously, such as: when using on sampling boat, aqueduct is positioned at outside ship side, horizontal duct can be placed and be fixed on ship side, thus 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 is directly connected with aqueduct end.
Especially, between described aqueduct and described horizontal duct, also comprise elbow, one end of elbow is connected with the end of aqueduct, is namely connected with the end of the bending segment of described aqueduct, and the other end is connected with described horizontal duct.
Particularly, use 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 pipe joint place to prevent water sample.
Particularly, described water sampler uses under the high condition of flowing velocity of described water collector high-speed mobile or sampling water sample.
Especially, relative velocity >=5 meter per second of the current in the water collector of described water sampler and water body, when being preferably 5-10 meter per second, water sampler Automatic continuous collects water sample, i.e. relative velocity >=5 meter per second of current in the speed of water collector and water body, when being preferably 5-10 meter per second, described water sampler Automatic continuous collects water sample.
Particularly, described water quality detection system uses under the water collector high-speed mobile of described water sampler or the high condition of flowing velocity of sampling water sample.
Especially, relative velocity >=5 meter per second of the current in the water collector of described water sampler and water body, when being preferably 5-10 meter per second, water sampler Automatic continuous collects water sample, i.e. relative velocity >=5 meter per second of current in the speed of water collector and water body, when being preferably 5-10 meter per second, described water sampler Automatic continuous collects water sample.
The water sample that water sampler of the present invention and water quality detection system can be widely used in carrying out in the natural water bodies such as rivers and lakes reservoir under high-speed moving state gathers the synchro measure with water quality parameter continuously automatically, also the fixed point water sample that can be used under high-velocity flow condition is collected and is measured with water quality parameter, in monitoring water environment and water pollution are prevented and treated, have good application prospect.Water sampler of the present invention and water quality monitoring system tool have the following advantages:
1, apparatus structure of the present invention simple, be easy to install, easy and simple to handle, the water sampling degree of depth is stablized, and easily control, water-quality guideline testing result is accurate.
2, device of the present invention can realize fast, accurately, continuously automatically collect the water sample at various depth of water place, water body top layer, and on-line synchronous mensuration is accurately carried out to the space distribution of the water-quality guideline of this depth, 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, without the need to manually applying other power, the sampling movement of carrier or the flowing kinetic energy of water body is utilized automatically to gather water sample, the relative kinetic energy of current and collector can be utilized automatically to gather water sample, and can continuous acquisition water sample, be suitable for field environment to use, use under being particularly suitable for high-speed mobile or high-velocity flow condition.
Scale marker on the aqueduct of 4, water sampler of the present invention is the sounding mark that the water collector of collector gos deep into water body, accurately determining to the sampling depth of water when facilitating field conduct water sampling, ensure that obvious change can not occur the water sample degree of depth of continuous acquisition, achieve the water sample collecting the fixing depth of water exactly.
5, the water quality detection probe of water quality detection system of the present invention is placed in water collector water sample storage tank all the time, contact with the fresh water sample successively entering storage tank, real-time synchronization detects the water sample water quality entering storage tank, water quality measurement probe is connected with water-quality guideline recording unit, achieves the unattended automatic mensuration to water-quality guideline and record.
Accompanying drawing illustrates:
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 Fig. 1 and aqueduct connection diagram;
Fig. 3 is the schematic top plan view of water collector shown in Fig. 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 embodiments are only exemplary, do not form any restriction to scope of the present invention.It will be understood by those skilled in the art that and can modify to the details of technical solution of the present invention and form or replace down without departing from the spirit and scope of the present invention, but these amendments 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 is formed by water collector 1, aqueduct 2,90 ° of elbows 3, horizontal duct 4, mozzle 6, water tank 7.
Water collector 1 for collecting the water sample in water body, in the frusto-conical (namely round table-like or horn-like) with large end and small end; The large end 11 of frusto-conical water collector (i.e. the water sample import of water collector or hydraucone) meets the direction to current, namely water collector large end 11 towards contrary with the direction of current, in carrier moving process or flowing water body in water sample enter water collector from browser at the bottom of the catchment 11; Aqueduct 2 is entered from the small end 12 (namely the water sample of water collector exports or horn throat) of frusto-conical water collector.
Water collector 1 is in the frusto-conical with large end and small end, can reduce water sample enter water collector 1 inner time local move loss of energy, simultaneously water sample enters the reduction due to flow section area after water collector 1, flow velocity and the pressure of water sample are improved, namely the kinetic energy of water sample increases, and is beneficial to and is promoted on the water surface by water sample.
Comprise the inner wall smooth of the horizontal segment 21 be connected with water collector and the aqueduct 2 becoming to be greater than the bending segment 22 of the angle [alpha] of 90 ° with horizontal segment, matter is hard, is promoted on the water surface by the water sample that water collector is collected, and the water sample namely in lifting water body is to the water surface.The horizontal segment 21 of aqueduct 2, in straight horizontal, 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 of being collected by water collector 1 is risen on the water surface of water body by aqueduct 2, to carry out water quality detection on the water surface.The horizontal segment 21 of aqueduct 2 and the angle α > 90 ° of bending segment 22.
The bending segment 22 of aqueduct 2 is marked with scale, and horizontal segment 21 and water collector 1 for indicating the aqueduct 2 be positioned under the water body water surface are 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, if need to gather the water sample that the depth of water is 1 meter, 3 meters, 10 meters, only the water surface need be made concordant with 1 meter, 3 meters, 10 meters scale places respectively, can guarantee that obvious change can not occur the water sample degree of depth of continuous acquisition.
Scale marker on the bending segment 22 of aqueduct 2 obtains the vertical range of horizontal segment 21 apart from water body surface level of corresponding aqueduct 2 according to the high computational formulae discovery of right-angle triangle, and computing formula is such 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 is the vertical range of aqueduct 2 horizontal segment 21 apart from water body surface level, i.e. the depth of water of the water sample of water collector collection;
L is the length that aqueduct 2 bending segment 22 stretches 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 one end of mozzle 6, and two ends seal with leakproof intermediate plate 5 respectively, prevents water sample from leaking.
The end of the bending segment 22 at aqueduct in the present invention can not also connect horizontal duct 4, directly the bending segment 22 of aqueduct 2 is directly connected with one 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.
For the ease of installing and using in the embodiment of the present invention, between aqueduct 2 and horizontal duct 4, elbow 3 is also installed, 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 are all applicable to the present invention.
Mozzle 6 is soft pipeline, is beneficial to the water tank 7 that is connected with mozzle 6 freely, place with suiting measures to local conditions expediently.One end of mozzle 6 is connected with horizontal duct 4, and is sealed by leakproof intermediate plate 5, prevents water sample from leaking; The other end and the water tank 7 of mozzle 6 are tightly connected, and the water sample collected is introduced water tank 7.
Water tank 7 is cylindric, for holding the water sample of collection.Offer water sample water inlet 71 at water tank 7 tank body near bottom, the one way stop peturn valve 72 preventing the water sample backflow entered in water tank is installed in the inner side offering water inlet 71 at water tank 7 tank body; The run-down pipe 73 for discharging the unnecessary water sample in water tank is offered on the top of described water tank 7 tank body.
The outer side seal offering water inlet 71 at water tank 7 tank body connects water inlet pipe 74, and mozzle 6 is connected with water inlet pipe 74, is introduced by water sample in water tank 7, and mozzle 6 and water inlet pipe 74 are sealed by leakproof intermediate plate 5.
In the present invention, water tank is except for except cylindric, and other any shapes are all 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 device that is linked in sequence as follows: 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 pop one's head in test position on 8 tops of water quality detection is positioned at the bottom of water tank 7, for measuring the water sample water quality be collected in water tank 7.
In the present invention, water quality detection probe 8 can directly be placed in water tank 7,8 more stable when the carrier of movement or high water velocity in order to make water quality detection pop one's head in, the embodiment of the present invention installs dismountable top cover 75 at the top of water tank 7, and top cover 75 is offered the socket 76 for 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 the test department position on 8 tops of described water quality detection being popped one's head in is in the bottom of described water tank 7, avoid the powerful water impact be subject to when water quality detection probe is directly placed in water body.
Because water sample enters from water storage jar 7 near bottom, flow out from top run-down pipe, after enter water tank the water sample water sample that promotes to be introduced into move in upward flow in water tank, the test position of water quality detection probe is positioned at bottom water tank, ensure that the numerical value that probe measures is the up-to-date water quality entering 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 rise in water tank 7 flowing time, its upflow velocity is much smaller than the water velocity in 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, thus also guaranteeing that what measure all the time is the up-to-date water quality entering the water sample of water tank for water quality detection probe 8.
Water quality detection probe 8 is connected with water quality parameter register instrument by data communication transmission cable, gets off measuring the water quality data keeping records obtained in real time, for follow-up water sample quality analysis.Thus realize automatically collecting the water sample that depth of water place is fixed on water body top layer fast, accurately, continuously, and on-line synchronous mensuration is accurately carried out to the space distribution of the water-quality guideline of this depth, be beneficial to analysis and the research of the spatial distribution state of water quality.
In the embodiment of the present invention, conveniently aqueduct 2 and the connection of horizontal duct 4, adopting elbow 3 to be connected, for the ease of installing and using, adopting 90 ° of elbows to connect between aqueduct 2 with horizontal duct 4.According to field condition, also can not use elbow 3 and horizontal duct 4, and mozzle 6 is directly connected with the bending segment 22 of aqueduct 2.
Angle of taper≤45 ° of the water collector of frusto-conical described in the present invention 1, are preferably 22.5 ~ 35 °; The bending angle > of described rigid elbow 2 90 °, is preferably 120 ~ 135 °; Described soft mozzle 6 is nonrigid plastic pipeline, is convenient to water tank 7 because putting suitable freely placing in ground.
The principle of work of water sampler of the present invention and water quality detection system is as follows:
Sampling under carrier high-speed moving state or having in the current of certain water velocity, the water collector 1 of water sampler of the present invention and aqueduct 2 are placed in a certain degree of depth on water body top layer, the horizontal segment 21 of aqueduct 2 and the plane-parallel of water body, bending segment 22 part stretches out the water surface, the large end 11 (i.e. hydraucone or flow inlet) of water collector 1 is towards the direction of current, current have certain relative velocity relative to water sampler, when relative velocity is more than or equal to 5 meter per second, the current entered in water collector 1 have higher kinetic energy, again because water collector 1 is in frusto-conical, flow section area from the large end 11 of water collector 1 to small end 12 reduces, flow velocity and dynamic pressure also increase further, the current that kinetic energy and flow velocity improve enter its bending segment 22 along the horizontal segment 21 of aqueduct 2, water sample is promoted to more than the water surface, after entering horizontal duct 4, then soft mozzle 6 is entered, then water tank 7 is flowed into, water body water sample is collected in water tank 7.Sampling carrier constantly moves or water body constantly flows, and the water sample of collection continuously automatic guide flows in water tank 7, obtains the water sample automatically collected continuously.
When gathering water sample in sampling carrier moving process, water collector 1 and aqueduct 2 are put into water body, and making the large end 11 of water collector 1 towards consistent with the moving direction of sampling carrier, the water sample when carrier of sampling moves in water body flows in water collector facing to the large end 11 (the water sample import of water collector or hydraucone) of water collector 1.Water collector 1 gos deep into being fixed on by aqueduct 2 under water body on sampling carrier after certain depth, make the sampling depth of water collector 1 constant, sampling carrier drives water collector 1 and aqueduct 2 to move with same speed when moving simultaneously, the relative velocity that has relative to water body of sampling carrier, be exactly water collector 1 in water sampling process relative to water body in the relative velocity of current.Such as, when gathering water sample in lake, in lake, the flow velocity of water is 0, and translational speed when sampling carrier gathers water sample in lake is 7 meter per seconds, then in sampling process, in water collector and water body, the relative velocity of current is 7 meter per seconds.
When gathering water sample in the water body flowed, water collector 1 and aqueduct 2 are put into water body, and make the direction of large end 11 towards water body current of water collector 1, namely water collector 1 large end 11 (i.e. the water sample import of water collector or hydraucone) against current direction (namely water collector 1 large end 11 towards or the direction of meeting to current), the current of flowing flow into water collector facing to the large end 12 of water collector 1.If the water collector of sampling does not move, then the flow velocity of the water body flowed be exactly water collector 1 in water sampling process relative to water body in the relative velocity of current; If the water collector of sampling moves, then the flow velocity of the water body flowed and water collector translational speed sum be exactly water collector 1 in water sampling process relative to water body in the relative velocity of current.Such as, when the water inlet distributing channel of sewage treatment plant gathers Wastewater Sample, the flow velocity of sewage is 7 meter per seconds, does not move if be positioned over water collector in water distributing channel, namely the speed of water collector is 0, then in sampling process, in water collector and water body, the relative velocity of current is 7 meter per seconds; If the water collector be positioned in distributing channel moves with the direction of the speed of 2 meter per seconds against current, then in sampling process, in water collector and water body, the relative velocity of current is 9 meter per seconds.
In water sampling process in water body current relative to relative velocity >=5 meter per second of water collector, be preferably 5-10 meter per second, namely in water body the flow velocity of current and the water collector of water sampler relative to relative velocity >=5 meter per second, be preferably 5-10 meter per second, guarantee that the water sample that sampling carrier is gathered by water collector 1 in moving process can continuously be promoted on the water body water surface, enter in the water tank 7 be 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 the position of water tank 7 tank body near bottom, when water sample rises flowing in water receiver 7, the water sample being introduced into water receiver 7 by after enter the water sample of water tank gradually upwardly, when the water surface of the water sample of inflow water tank 7 reaches and exceeds the height of run-down pipe 73 in the ban, first discharged by run-down pipe 73 gradually.
Along with the rising of the water surface in water receiver 7, or when current relative velocity reduces, during the static pressure causing current to be less than by general pressure after pressure-drop in pipeline in water receiver, one way stop peturn valve 8 is closed, and can prevent collected water sample from being flow backwards by pipeline.
After water sample enters water tank 7 from the bottom of water tank 7, the water quality detection probe 8 be positioned in water tank 7 carries out continuously each water-quality guideline (such as water temperature, dissolved oxygen DO and chlorophyllous content etc.), 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 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 water quality parameter register instrument by data communication transmission cable, gets off measuring the water quality data keeping records obtained in real time, for follow-up water sample quality analysis.
Embodiment 1
Adopt water sampler as shown in Figure 1 in lake, gather the water sample at the depth of water 1 meter of, and adopt water quality measurement system synchronization of the present invention to measure water sample water-quality guideline.
Carrier of sampling in this example is sampling boat, and the translational speed of sampling boat is 6 meter per seconds (translational speed of sampling boat can also be more than 5 meter per seconds, is preferably 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 by 90 ° of elbows 3 with the bending segment 22 of aqueduct 2 and seals; The two ends of soft mozzle 6 are tightly connected respectively by leakproof intermediate plate 5 and horizontal duct 4, water inlet pipe 74; Water inlet pipe 74 is connected with water tank 7 by water inlet 71; Water quality detection probe 8 is inserted in described water tank 7 by the socket 76 on the dismountable top cover in water tank 7 top 75, and makes the test position of probe tip be positioned at the bottom of water tank 7.
The horizontal segment 21 of the aqueduct 2 of water sampler of the present invention, part bending segment 22 and water collector 1 are put into lake water from the starboard of sampling carrier ship, make the horizontal segment 21 of aqueduct 2 and the water surface keeping parallelism of lake water, and make its horizontal segment 21 and water collector 1 be positioned at 1 meter of depths below lake water, and make water collector 1 greatly end 11 (i.e. hydraucone or flow inlets) towards consistent with the direction that sampling boat advances.Sampling boat translational speed is exactly the translational speed of water collector 1, because in lake, the speed of current is slow, water velocity is ignored, therefore in sampling process, in water collector and water body in lake, the relative velocity of current is 6 meter per seconds, water sample in lake flows into water collector 1 inside from the large end 11 of water collector 1 automatically, continuously, thus the water sample in lake is continuously entered in water tank 7 automatically, reach the object of collecting water sample.
Enter the current in water collector 1 when flowing to small end 12 from the large end 11 of water collector 1, because the flow section area of current reduces, flow velocity and dynamic pressure also increase further, 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 promote enter horizontal duct 4, and then flow through mozzle 6 successively, water inlet pipe 74 enters water tank 7.
In sampling boat advance process, the lake water at the depth of water 1 meter of continuously enters in water tank 7 automatically, reaches the object of collecting water sample.Water quality detection probe 8 to the water-quality guideline (such as water temperature, dissolved oxygen DO and chlorophyllous content etc.) of water sample entering water tank 7, carry out synchronous, to measure and record automatically, in real time.
Except can gathering the lake water at the depth of water 1 meter of, 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 the water sample gathering any degree of depth under water body, and its water sampling degree of depth is preferably≤10 meters, more preferably≤5 meters.
Because the speed of current in pipeline is very fast, it is greater than the static pressure in water tank by general pressure after pressure-drop in pipeline, the lake water constantly automatic bottom from water tank 7 enters, in water tank 7, the water sample water surface constantly rises, when the water surface of the water sample of water tank 7 reaches and exceeds the height of run-down pipe 73, water sample is discharged by run-down pipe 73.Along with the rising of the water surface in water receiver 7, and when current relative velocity reduces, during the static pressure causing current to be less than by general pressure after pressure-drop in pipeline in water receiver, one way stop peturn valve 8 is closed, and can prevent collected water sample from being flow backwards by pipeline.
Embodiment 2
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 water sample water-quality guideline.
The effluent flow rate of sewage treatment plant inflow distributing channel is 5 meter per seconds (flow velocity can also be more than 5 meter per seconds).Water tank 7 is positioned over the bank of distributing channel 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 respectively by leakproof intermediate plate 5 and horizontal duct 4, water inlet pipe 74; Water inlet pipe 74 is connected with water tank 7 by water inlet 71; Water quality detection probe 8 is inserted in described water tank 7 by the socket 76 on the dismountable top cover in water tank 7 top 75, and makes the test position of probe tip be positioned at the bottom of water tank 7.
By the horizontal segment 21 of the aqueduct 2 of water sampler of the present invention, part bending segment 22 and water collector 1 put into below the distributing channel water surface, make the horizontal segment 21 of aqueduct 2 and water surface keeping parallelism in distributing channel, and make the large end 11 (i.e. hydraucone or flow inlet) of water collector 1 towards contrary with sewage water (flow) direction, by the large end 11 (i.e. hydraucone or flow inlet) of water collector 1 towards sewage water (flow) direction, namely make the large end 11 of water collector 1 in face of sewage water (flow) direction, namely water collector 1 large end 11 towards contrary with the flow direction of sewage, the large end 11 of water collector 1 towards the flow direction against sewage.In Sewage Plant water inlet distributing channel sampling process, water collector 1 is not moved, namely the translational speed of water collector 1 is 0, therefore in sampling process, in water collector and distributing channel water body, the relative velocity of current is 5 meter per seconds, sewage in distributing channel flows into water collector 1 inside from the large end 11 of water collector 1 automatically, continuously, and then continuously automatically enter in water tank 7, reach the object of collecting water sample.
Enter the sewage in water collector 1 when flowing to small end 12 from the large end 11 of water collector 1, because the flow section area of current reduces, flow velocity and dynamic pressure also increase further, 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 by 90 ° of elbows 3, promotes and enters horizontal duct 4, and then flow through mozzle 6 successively, water inlet pipe 74 enters water tank 7.
Because 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.Water quality detection probe 8 to the water-quality guideline of Wastewater Sample entering water tank 7, carry out synchronous, to measure and record automatically, in real time.
Because the speed of current in pipeline is very fast, it is greater than the static pressure in water tank by general pressure after pressure-drop in pipeline, sewage constantly enters water tank 7 automatically, in water sample water tank 7, the water sample water surface constantly rises, when the water surface of the water sample of water tank 7 reaches and exceeds the height of run-down pipe 73, water sample is discharged by run-down pipe 73.Along with the rising of the water surface in water receiver 7, and when current relative velocity reduces, during the static pressure causing current to be less than by general pressure after pressure-drop in pipeline in water receiver, one way stop peturn valve 8 is closed, and can prevent collected water sample from being flow backwards by pipeline.

Claims (9)

1. a water sampler, is characterized in that comprising:
To be arranged in water body and to gather the water collector (1) of water sample;
The water sample of water collector collection is promoted to the aqueduct (2) of more than the water surface, wherein said aqueduct (2) comprises the horizontal segment (21) that is connected with water collector and becomes to be greater than the bending segment (22) of the angle [alpha] of 90 ° with horizontal segment;
The water tank (7) of the water sample of store collected.
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 water collector (1) is in 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.
4. water sampler as claimed in claim 1 or 2, it is characterized in that: described water tank (7) tank body offers water inlet (71) near the position of bottom, flowing into described water tank (7) for making the collection water sample promoted through aqueduct (2).
5. water sampler as claimed in claim 4, is characterized in that: be provided with one way stop peturn valve (72) at described water inlet (71), prevents the water sample backflow entered in described water tank (7).
6. water sampler as claimed in claim 4, is characterized in that: establish run-down pipe (73) on described water tank (7) top.
7. water sampler as claimed in claim 4, is characterized in that establishing the socket (76) that can insert probe (8) at described water tank (7) top.
8. water sampler as claimed in claim 2, characterized by further comprising horizontal duct (4), described horizontal duct is connected between described aqueduct and described mozzle.
9. a water quality detection system, comprise as arbitrary in claim 1-8 as described in water sampler and collector as described in being positioned over water tank (7) in water quality detection probe (8).
CN201210134591.2A 2012-05-02 2012-05-02 A kind of water sampler and water quality measurement system Expired - Fee Related CN103383316B (en)

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